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Malbrain MLNG. "Do we still need central venous pressure monitoring in the ICU? No!". Intensive Crit Care Nurs 2025; 88:103991. [PMID: 40056796 DOI: 10.1016/j.iccn.2025.103991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2025]
Affiliation(s)
- Manu L N G Malbrain
- First Department of Anaesthesia and Intensive Therapy, Medical University of Lublin, Jaczewskiego Street 8, 20-090 Lublin, Poland; International Fluid Academy, Dreef 3, Lovenjoel, Belgium; Medical Data Management, Medaman, Geel, Belgium.
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2
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Orman S, Hancı P, Efe S, İnal V. THE ROLE OF ULTRASONIC CARDIAC OUTPUT MONITOR IN EVALUATING STROKE VOLUME VARIATION TO DETERMINE FLUID RESPONSIVENESS IN PATIENTS WITH SHOCK. Shock 2025; 63:893-899. [PMID: 40130826 DOI: 10.1097/shk.0000000000002584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2025]
Abstract
ABSTRACT Background: Dynamic assessment of cardiac output (CO) with passive leg raise (PLR), stroke volume variation (SVV), and pulse pressure variation (PPV) offer effective and safe methods to predict fluid responsiveness in patients with shock. The primary aim of this study was to evaluate the reliability of CO and SVV readings with the ultrasonic cardiac output monitor (USCOM) 1A device compared to PPV measurements in determining fluid responsiveness of patients in shock. Materials and Method: Intubated and mechanically ventilated patients aged 18-95 with shock admitted to the medical intensive care unit from June 2019 to December 2020 were included in the study. Fluid responsiveness was assessed using PPV from arterial monitoring and CO/SVV using the USCOM 1A device. CO, PPV, and SVV data were recorded before and after PLR. Results: Out of 145 shock patients, 92 were included. Before the PLR maneuver, 67 patients had PPV values above 12% and were stated as fluid responsive. The SVV index measured by the USCOM device demonstrated good sensitivity (85%) and specificity (96%) in identifying fluid responsiveness. The agreement with PPV was substantial (Cronbach's alpha reliability: 0.718 [ P < 0.001]), and the index was internally consistent (kappa agreement: 0.707 [ P < 0.001]). The SVV index moderately correlated with PPV (R: 0.588 [ P = 0.001]). Regarding fluid responsiveness determined by PPV, the AUC value of SVV was 0.797 (0.701-0.894) (p: 0.001). Conclusion: SVV measured by the USCOM device is a reliable and practical tool for hemodynamic assessment in clinical practice, particularly when invasive methods are unsuitable.
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Affiliation(s)
- Seval Orman
- Division of Medical Oncology, Department of Internal Medicine, Turkish Ministry of Health Kartal Doctor Lütfi Kırdar City Hospital, Istanbul, Turkey
| | - Pervin Hancı
- Division of Intensive Care Medicine, Department of Pulmonology, Trakya University Faculty of Medicine, Edirne, Turkey
| | - Serdar Efe
- Division of Intensive Care Medicine, Department of Internal Medicine, Uludağ University Faculty of Medicine, Bursa, Turkey
| | - Volkan İnal
- Division of Intensive Care Medicine, Department of Internal Medicine, Trakya University Faculty of Medicine, Edirne, Turkey
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3
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Seo D, Lim S, Namgoong B, Uhm H, Hong H, Lee N, Kim I, Heo S, Kang JH, Kim C, Shin H, Her J, Kim MS. Prediction of Fluid Responsiveness Based on the External Jugular Vein Distensibility Index After Changes in Volume Status in Healthy, Anesthetized, and Mechanically Ventilated Dogs. J Vet Emerg Crit Care (San Antonio) 2025:e13466. [PMID: 40298407 DOI: 10.1111/vec.13466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2025] [Revised: 03/07/2025] [Accepted: 04/04/2025] [Indexed: 04/30/2025]
Abstract
OBJECTIVE To investigate whether point-of-care ultrasound of the external jugular vein (EJV) can predict fluid responsiveness (FR) in healthy, anesthetized, mechanically ventilated dogs. DESIGN Prospective, nonrandomized experimental study. SETTING University-based small animal research facility. ANIMALS Six healthy Beagle dogs. INTERVENTIONS Dogs were investigated at six time points (TPs): baseline (TP1); 20 mL/kg of circulating blood was collected over 10 min (TP2); half of the collected blood was autotransfused for 10 min (TP3); remaining collected blood was autotransfused for 10 min (TP4); 0.9% normal saline (10 mL/kg for 10 min) was administered (TP5); and an additional dose of 0.9% normal saline (10 mL/kg for 10 min) was administered (TP6). Hemodynamic variables, Doppler images of the left ventricular outflow tract (LVOT), and M-mode images of the EJV were obtained at each TP. FR was evaluated during TP3-6. FR was defined as an increase of >15% in the LVOT velocity time integral following fluid challenge, while other results were defined as fluid nonresponsiveness (FNR). The external jugular vein distensibility index (EJVDI) was calculated as follows: [(maximal EJV diameter - minimal EJV diameter)/minimal EJV diameter] × 100%. The maximal EJV diameter was measured during inspiration, and the minimal EJV diameter was measured during expiration. In addition, gray zones indicating the range of diagnostic uncertainty were proposed in various indices for predicting FR. MEASUREMENTS AND MAIN RESULTS Among the 24 fluid challenges performed between TP3 and TP6, 11 FR and 13 FNR were identified. The area under the receiver operating characteristic curve for the EJVDI in predicting FR was 0.92, with a cut-ff value of 22.7%, and the gray zone was identified as 22.6%-27.3%. CONCLUSIONS The EJVDI could be used to predict FR in healthy, anesthetized, mechanically ventilated dogs. Further studies are required before point-of-care ultrasound of the EJV can be applied in various clinical settings.
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Affiliation(s)
- Daeyun Seo
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Seongsoo Lim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Beomkwan Namgoong
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Heesung Uhm
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Hyeajeong Hong
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Nanju Lee
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Isong Kim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Seunghun Heo
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Ji Hwan Kang
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Cheyoun Kim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Hayoung Shin
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
| | - Jiwoong Her
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The North Carolina State University, Raleigh, North Carolina, USA
| | - Min-Su Kim
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, South Korea
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Marklin GF, Gansner E, Stephens M, Ewald G, Klinkenberg WD, Ahrens T. A prospective randomized comparison of a pulse-contour analysis monitor versus a non-invasive bioreactance monitor in a stroke-volume based goal-directed fluid resuscitation protocol in brain-dead organ donors. Heart Lung 2025; 73:56-63. [PMID: 40288350 DOI: 10.1016/j.hrtlng.2025.04.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2025] [Revised: 03/31/2025] [Accepted: 04/18/2025] [Indexed: 04/29/2025]
Abstract
BACKGROUND Brain-dead (BD) organ donors are frequently hypotensive and hypovolemic requiring fluid resuscitation. We previously published our four-hour stoke volume (SV)-based fluid resuscitation protocol that expeditiously corrected the fluid deficit and significantly decreased time on vasopressors. The SV was measured by pulse-contour analysis (PCA). OBJECTIVE To determine if the measurement of stroke volume by bioreactance (BR) was equivalent to PCA in a goal-directed fluid resuscitation protocol in BD donors. METHODS We performed a prospective randomized trial of fluid resuscitation in BD donors comparing the two monitors. RESULTS In 169 deceased donors there were 1481 comparative measurements of SV. The correlation coefficient was 0.32. A Bland Altman analysis revealed a minimal bias (-1.8 ml) but large limits of agreement (±62.9 ml) and a percentage error of 80.5 %. A 10 % SV increase with a 500 ml fluid bolus had conflicting results between the monitors in 31.3 % of 1309 measurements. As a reference standard, the Fick method of measuring SV was used 49 times with simultaneous measurements of PCA-SV and BR-SV. The mean Fick SV (96.0 ± 30.6 ml) was significantly greater than BR (79.4 ± 18.1 ml; p<.01) and the PCA (77.2 ± 22.5 ml; p<.01). The mean SV differences for Fick-BR (16.6 ± 27.2, 95 % CI 8.78-24.42) and Fick-PCA (18.7 ± 29.0, 95 % CI 10.42-27.08) were not significantly different (p=.57). CONCLUSION Although this study demonstrated inaccuracies, imprecision, and disagreement between BR and PCA SV measurements, there was equipoise in clinical outcomes when used with our fluid resuscitation protocol, as previously published.
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Affiliation(s)
| | | | | | - Gregory Ewald
- Department of Medicine, Washington University School of Medicine, St Louis, MO, USA
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Harteveld LM, Blom NA, van Dijk JG, Reijntjes RHAM, van Someren PJ, Kerkhof FI, Kuipers IM, Rammeloo LAJ, Ten Harkel ADJ. Fluid responsiveness of ambulatory paediatric patients with a Fontan circulation by passive leg raising. Cardiol Young 2025:1-6. [PMID: 40091677 DOI: 10.1017/s1047951125001209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/19/2025]
Abstract
BACKGROUND Passive leg raising is used to predict who will benefit from fluid therapy in critically ill patients, including children. Patients with a Fontan circulation may have a different haemodynamic response to a fluid challenge by passive leg raising. METHODS The haemodynamic response of 31 paediatric patients with a Fontan circulation from the outpatient clinic (median age 14.0 years) and 35 healthy controls (median age 12.8 years) to passive leg raising was evaluated non-invasively by echocardiography for the assessment of, e.g., velocity time integral across the (neo)aortic valve, blood pressure measurements, and respiration. Participants were considered responders when the velocity time integral increased ≥ 10.0%. RESULTS Overall, patients and controls did not differ in the haemodynamic response. Twelve patients (38.7%) and 8 controls (22.9%) were responders, which was not statistically different (P = 0.22). Responders in the patient and control group also had a similar echo-estimated velocity time integral increase of + 18.9% and + 15.2%, respectively (P = 0.91). There was no difference in echo-estimated velocity time integral change between patient and control non-responders with a decrease of -1.4% and -6.4%, respectively (P = 0.70) and no difference in the amount of patients who were negatively affected by passive leg raising, ith a decrease of ≤-10.0% in 7 patients (22.6%) and 9 controls (25.7%)(P = 0.77). CONCLUSION The haemodynamic response of ambulatory paediatric patients with a Fontan circulation to passive leg raising is like that of healthy controls. Patients who did not respond were similarly affected as healthy controls. Whether the haemodynamic response is different in critically ill patients warrants further investigation. TRAIL REGISTRATION The Netherlands National Trial Register (NTR), Trial: NL6415; date of registration 20-07-2017; Trial information: https://www.trialregister.nl/trial/6415.
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Affiliation(s)
- Lisette M Harteveld
- The Centre for Congenital Heart Disease Amsterdam-Leiden, Leiden, The Netherlands
- Willem-Alexander Children's Hospital, Department of Paediatrics, Division of Paediatric Cardiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Nico A Blom
- The Centre for Congenital Heart Disease Amsterdam-Leiden, Leiden, The Netherlands
- Willem-Alexander Children's Hospital, Department of Paediatrics, Division of Paediatric Cardiology, Leiden University Medical Centre, Leiden, The Netherlands
- Department of Paediatric Cardiology, Amsterdam University Medical Centre, Amsterdam, The Netherlands
| | - J Gert van Dijk
- Department of Neurology and Clinical Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Robert H A M Reijntjes
- Department of Neurology and Clinical Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Paul J van Someren
- Department of Neurology and Clinical Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Fabian I Kerkhof
- Department of Neurology and Clinical Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Irene M Kuipers
- The Centre for Congenital Heart Disease Amsterdam-Leiden, Leiden, The Netherlands
- Department of Paediatric Cardiology, Amsterdam University Medical Centre, Amsterdam, The Netherlands
| | - Lukas A J Rammeloo
- The Centre for Congenital Heart Disease Amsterdam-Leiden, Leiden, The Netherlands
- Department of Paediatric Cardiology, Amsterdam University Medical Centre, Amsterdam, The Netherlands
| | - Arend D J Ten Harkel
- The Centre for Congenital Heart Disease Amsterdam-Leiden, Leiden, The Netherlands
- Willem-Alexander Children's Hospital, Department of Paediatrics, Division of Paediatric Cardiology, Leiden University Medical Centre, Leiden, The Netherlands
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Mallat J, Siuba MT, Abou-Arab O, Kovacevic P, Ismail K, Duggal A, Guinot PG. Changes in pulse pressure variation induced by passive leg raising test to predict preload responsiveness in mechanically ventilated patients with low tidal volume in ICU: a systematic review and meta-analysis. Crit Care 2025; 29:18. [PMID: 39789598 PMCID: PMC11720620 DOI: 10.1186/s13054-024-05238-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2024] [Accepted: 12/26/2024] [Indexed: 01/12/2025] Open
Abstract
BACKGROUND Pulse pressure variation (PPV) is limited in low tidal volume mechanical ventilation. We conducted this systematic review and meta-analysis to evaluate whether passive leg raising (PLR)-induced changes in PPV can reliably predict preload/fluid responsiveness in mechanically ventilated patients with low tidal volume in the intensive care unit. METHODS PubMed, Embase, and Cochrane databases were screened for diagnostic research relevant to the predictability of PPV change after PLR in low-tidal volume mechanically ventilated patients. The QUADAS-2 scale was used to assess the risk of bias of the included studies. In-between study heterogeneity was assessed through the I2 indicator. Publication bias was assessed by the Deeks' funnel plot asymmetry test. Summary receiving operating characteristic curve (SROC), pooled sensitivity, and specificity were calculated. RESULTS Five studies with a total of 474 patients were included in this meta-analysis. The SROC of the absolute PPV change resulted in an area under the curve of 0.91 (95% CI 0.88-0.93), with overall pooled sensitivity and specificity of 0.88 (95% CI 0.82-0.91) and 0.83 (95% CI 0.76-0.89), respectively. The diagnostic odds ratio was 35 (95% CI 19-67). The mean and median cutoff values of PLR-induced absolute change in absolute PPV were both -2 points and ranged from -2.5 to -1 points. Overall, there was no significant heterogeneity with I2 = 0%. There was no significant publication bias. Fagan's nomogram showed that with a pre-test probability of 50%, the post-test probability reached 84% and 17% for the positive and negative tests, respectively. CONCLUSIONS PLR-induced change in absolute PPV has good diagnostic performance in predicting preload/fluid responsiveness in ICU patients on mechanical ventilation with low tidal volume. Trial registration PROSPERO (CRD42024496901). Registered on 15 January 2024.
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Affiliation(s)
- Jihad Mallat
- Critical Care Division, Integrated Hospital Care Institute, Cleveland Clinic Abu Dhabi, 112412, Abu Dhabi, United Arab Emirates.
- Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, 44106, USA.
| | - Matthew T Siuba
- Department of Critical Care Medicine Integrated Hospital Care Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Osama Abou-Arab
- Anesthesia and Critical Care Department, Amiens Hospital University, 80054, Amiens, France
| | - Pedja Kovacevic
- Medical Intensive Care Unit, University Clinical Centre of the Republic of Srpska, Dvanaest Beba Bb, 78000, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
- Faculty of Medicine, University of Banja Luka, Save Mrkalja 14, 78000, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
| | - Khaled Ismail
- Critical Care Division, Integrated Hospital Care Institute, Cleveland Clinic Abu Dhabi, 112412, Abu Dhabi, United Arab Emirates
| | - Abhijit Duggal
- Department of Critical Care Medicine Integrated Hospital Care Institute, Cleveland Clinic, Cleveland, OH, USA
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Casazzo M, Pisani L, Md Erfan Uddin RA, Sattar A, Mirzada R, Zahed ASM, Sarkar S, Barua A, Paul S, Faiz MA, Sayeed AA, Leopold SJ, Lee SJ, Mukaka M, Hassan Chowdhury MA, Srinamon K, Schilstra M, Dutta AK, Grasso S, Schultz MJ, Ghose A, Dondorp A, Plewes K. The Accuracy of the Passive Leg Raising Test Using the Perfusion Index to Identify Preload Responsiveness-A Single Center Study in a Resource-Limited Setting. Diagnostics (Basel) 2025; 15:103. [PMID: 39795631 PMCID: PMC11719506 DOI: 10.3390/diagnostics15010103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 11/05/2024] [Accepted: 11/20/2024] [Indexed: 01/13/2025] Open
Abstract
Background: We investigated the accuracy of predicting preload responsiveness by means of a passive leg raising test (PLR) using the perfusion index (PI) in critically ill patients showing signs of hypoperfusion in a resource-limited setting. Methods: We carried out a prospective observational single center study in patients admitted for sepsis or severe malaria with signs of hypoperfusion in Chattogram, Bangladesh. A PLR was performed at baseline, and at 6, 24, 48, and 72 h. Preload responsiveness assessed through PI was compared to preload responsiveness assessed through cardiac index (CI change ≥5%), as reference test. The primary endpoint was the accuracy of preload responsiveness prediction of PLR using PI at baseline; secondary endpoints were the accuracies at 6, 24, 48, and 72 h. Receiver operating characteristic (ROC) curves were constructed. Results: The study included 34 patients admitted for sepsis with signs of hypoperfusion and 10 patients admitted for severe malaria. Of 168 PLR tests performed, 143 had reliable PI measurements (85%). The best identified PI change cutoff to discriminate responders from non-responders was 9.7%. The accuracy of PLR using PI in discriminating a preload responsive patient at baseline was good (area under the ROC 0.87 95% CI 0.75-0.99). The test showed high sensitivity and negative predictive value, with comparably lower specificity and positive predictive value. Compared to baseline, the AUROC of PLR using PI was lower at 6, 24, 48, and 72 h. Restricting the analysis to sepsis patients did not change the findings. Conclusions: In patients with sepsis or severe malaria and signs of hypoperfusion, changes in PI after a PLR test detected preload responsiveness. The diagnostic accuracy was better when PI changes were measured at baseline.
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Affiliation(s)
- Marialessia Casazzo
- Department of Anesthesia and Intensive Care, University of Bari, 70124 Bari, Italy; (M.C.); (S.G.)
| | - Luigi Pisani
- Department of Anesthesia and Intensive Care, University of Bari, 70124 Bari, Italy; (M.C.); (S.G.)
- Mahidol–Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok 10400, Thailand; (S.J.L.); (M.M.); (K.S.); (M.S.); (M.J.S.); (A.D.); (K.P.)
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7LG, UK
| | - Rabiul Alam Md Erfan Uddin
- Department of Medicine, Chittagong Medical College Hospital, Chattogram 4203, Bangladesh; (R.A.M.E.U.); (A.S.); (R.M.); (A.S.M.Z.); (S.S.); (A.B.); (S.P.); (A.A.S.); (A.K.D.); (A.G.)
| | - Abdus Sattar
- Department of Medicine, Chittagong Medical College Hospital, Chattogram 4203, Bangladesh; (R.A.M.E.U.); (A.S.); (R.M.); (A.S.M.Z.); (S.S.); (A.B.); (S.P.); (A.A.S.); (A.K.D.); (A.G.)
| | - Rashed Mirzada
- Department of Medicine, Chittagong Medical College Hospital, Chattogram 4203, Bangladesh; (R.A.M.E.U.); (A.S.); (R.M.); (A.S.M.Z.); (S.S.); (A.B.); (S.P.); (A.A.S.); (A.K.D.); (A.G.)
| | - Abu Shahed Mohammad Zahed
- Department of Medicine, Chittagong Medical College Hospital, Chattogram 4203, Bangladesh; (R.A.M.E.U.); (A.S.); (R.M.); (A.S.M.Z.); (S.S.); (A.B.); (S.P.); (A.A.S.); (A.K.D.); (A.G.)
| | - Shoman Sarkar
- Department of Medicine, Chittagong Medical College Hospital, Chattogram 4203, Bangladesh; (R.A.M.E.U.); (A.S.); (R.M.); (A.S.M.Z.); (S.S.); (A.B.); (S.P.); (A.A.S.); (A.K.D.); (A.G.)
| | - Anupam Barua
- Department of Medicine, Chittagong Medical College Hospital, Chattogram 4203, Bangladesh; (R.A.M.E.U.); (A.S.); (R.M.); (A.S.M.Z.); (S.S.); (A.B.); (S.P.); (A.A.S.); (A.K.D.); (A.G.)
| | - Sujat Paul
- Department of Medicine, Chittagong Medical College Hospital, Chattogram 4203, Bangladesh; (R.A.M.E.U.); (A.S.); (R.M.); (A.S.M.Z.); (S.S.); (A.B.); (S.P.); (A.A.S.); (A.K.D.); (A.G.)
| | | | - Abdullah Abu Sayeed
- Department of Medicine, Chittagong Medical College Hospital, Chattogram 4203, Bangladesh; (R.A.M.E.U.); (A.S.); (R.M.); (A.S.M.Z.); (S.S.); (A.B.); (S.P.); (A.A.S.); (A.K.D.); (A.G.)
| | - Stije J. Leopold
- Department of Internal Medicine, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands;
| | - Sue J. Lee
- Mahidol–Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok 10400, Thailand; (S.J.L.); (M.M.); (K.S.); (M.S.); (M.J.S.); (A.D.); (K.P.)
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7LG, UK
- Department of Infectious Diseases, The Alfred Hospital and Central Clinical School, Monash University, Melbourne, VIC 3004, Australia
| | - Mavuto Mukaka
- Mahidol–Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok 10400, Thailand; (S.J.L.); (M.M.); (K.S.); (M.S.); (M.J.S.); (A.D.); (K.P.)
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7LG, UK
| | | | - Ketsanee Srinamon
- Mahidol–Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok 10400, Thailand; (S.J.L.); (M.M.); (K.S.); (M.S.); (M.J.S.); (A.D.); (K.P.)
| | - Marja Schilstra
- Mahidol–Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok 10400, Thailand; (S.J.L.); (M.M.); (K.S.); (M.S.); (M.J.S.); (A.D.); (K.P.)
| | - Asok Kumar Dutta
- Department of Medicine, Chittagong Medical College Hospital, Chattogram 4203, Bangladesh; (R.A.M.E.U.); (A.S.); (R.M.); (A.S.M.Z.); (S.S.); (A.B.); (S.P.); (A.A.S.); (A.K.D.); (A.G.)
| | - Salvatore Grasso
- Department of Anesthesia and Intensive Care, University of Bari, 70124 Bari, Italy; (M.C.); (S.G.)
| | - Marcus J. Schultz
- Mahidol–Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok 10400, Thailand; (S.J.L.); (M.M.); (K.S.); (M.S.); (M.J.S.); (A.D.); (K.P.)
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7LG, UK
- Department of Intensive Care, Amsterdam University Medical Centers, Location AMC, 1105 AZ Amsterdam, The Netherlands
- Department of Anesthesia, General Intensive Care and Pain Management, Division of Cardiothoracic and Vascular Anesthesia & Critical Care Medicine, Medical University of Vienna, 1090 Vienna, Austria
| | - Aniruddha Ghose
- Department of Medicine, Chittagong Medical College Hospital, Chattogram 4203, Bangladesh; (R.A.M.E.U.); (A.S.); (R.M.); (A.S.M.Z.); (S.S.); (A.B.); (S.P.); (A.A.S.); (A.K.D.); (A.G.)
| | - Arjen Dondorp
- Mahidol–Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok 10400, Thailand; (S.J.L.); (M.M.); (K.S.); (M.S.); (M.J.S.); (A.D.); (K.P.)
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7LG, UK
- Department of Global Health, Amsterdam University Medical Centers, Location AMC, 1005 AZ Amsterdam, The Netherlands
| | - Katherine Plewes
- Mahidol–Oxford Tropical Medicine Research Unit (MORU), Mahidol University, Bangkok 10400, Thailand; (S.J.L.); (M.M.); (K.S.); (M.S.); (M.J.S.); (A.D.); (K.P.)
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7LG, UK
- Division of Infectious Diseases, Department of Medicine, University of British Columbia, Vancouver, BC V5Z 1L5, Canada
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Thwaites L, Nasa P, Abbenbroek B, Dat VQ, Finfer S, Kwizera A, Ling L, Lobo SM, Sinto R, Aditianingsih D, Antonelli M, Arabi YM, Argent A, Azevedo L, Bennett E, Chakrabarti A, De Asis K, De Waele J, Divatia JV, Estenssoro E, Evans L, Faiz A, Hammond NE, Hashmi M, Herridge MS, Jacob ST, Jatsho J, Javeri Y, Khalid K, Chen LK, Levy M, Lundeg G, Machado FR, Mehta Y, Mer M, Son DN, Ospina-Tascón GA, Ostermann M, Permpikul C, Prescott HC, Reinhart K, Rodriguez Vega G, S-Kabara H, Shrestha GS, Waweru-Siika W, Tan TL, Todi S, Tripathy S, Venkatesh B, Vincent JL, Myatra SN. Management of adult sepsis in resource-limited settings: global expert consensus statements using a Delphi method. Intensive Care Med 2025; 51:21-38. [PMID: 39714613 PMCID: PMC11787051 DOI: 10.1007/s00134-024-07735-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Accepted: 10/26/2024] [Indexed: 12/24/2024]
Abstract
PURPOSE To generate consensus and provide expert clinical practice statements for the management of adult sepsis in resource-limited settings. METHODS An international multidisciplinary Steering Committee with expertise in sepsis management and including a Delphi methodologist was convened by the Asia Pacific Sepsis Alliance (APSA). The committee selected an international panel of clinicians and researchers with expertise in sepsis management. A Delphi process based on an iterative approach was used to obtain the final consensus statements. RESULTS A stable consensus was achieved for 30 (94%) of the statements by 41 experts after four survey rounds. These include consensus on managing patients with sepsis outside a designated critical care area, triggers for escalating clinical management and criteria for safe transfer to another facility. The experts agreed on the following: in the absence of serum lactate, clinical parameters such as altered mental status, capillary refill time and urine output may be used to guide resuscitation; special considerations regarding the volume of fluid used for resuscitation, especially in tropical infections, including the use of simple tests to assess fluid responsiveness when facilities for advanced hemodynamic monitoring are limited; use of Ringer's lactate or Hartmann's solution as balanced salt solutions; epinephrine when norepinephrine or vasopressin are unavailable; and the administration of vasopressors via a peripheral vein if central venous access is unavailable or not feasible. Similarly, where facilities for investigation are unavailable, there was consensus for empirical antimicrobial administration without delay when sepsis was strongly suspected, as was the empirical use of antiparasitic agents in patients with suspicion of parasitic infections. CONCLUSION Using a Delphi method, international experts reached consensus to generate expert clinical practice statements providing guidance to clinicians worldwide on the management of sepsis in resource-limited settings. These statements complement existing guidelines where evidence is lacking and add relevant aspects of sepsis management that are not addressed by current international guidelines. Future studies are needed to assess the effects of these practice statements and address remaining uncertainties.
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Affiliation(s)
- Louise Thwaites
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
| | - Prashant Nasa
- Critical Care Medicine, NMC Specialty Hospital, Dubai, United Arab Emirates
- Integrated Critical Care Unit, New Cross Hospital, The Royal Wolverhampton NHS Trust, Wolverhampton, UK
| | - Brett Abbenbroek
- Asia Pacific Sepsis Alliance, Sydney, Australia
- Critical Care Program, The George Institute for Global Health, University of New South Wales, Sydney, Australia
| | - Vu Quoc Dat
- Department of Infectious Diseases, Hanoi Medical University, Hanoi, Vietnam
| | - Simon Finfer
- Asia Pacific Sepsis Alliance, Sydney, Australia
- Critical Care Program, The George Institute for Global Health, University of New South Wales, Sydney, Australia
- School of Public Health, Faculty of Medicine, Imperial College London, London, England
| | - Arthur Kwizera
- Department of Anaesthesia and Critical Care, Makerere University College of Health Sciences, Kampala, Uganda
| | - Lowell Ling
- Department Anaesthesia and Intensive Care, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Suzana M Lobo
- Intensive Care Division, FAMERP and Hospital de Base, São José do Rio Preto (SP), Brazil
| | - Robert Sinto
- Division of Tropical and Infectious Diseases, Department of Internal Medicine, Cipto Mangunkusumo National Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Dita Aditianingsih
- Department of Anaesthesiology and Intensive Care, Cipto Mangunkusumo Hospital, Universitas Indonesia, Jakarta, Indonesia
| | - Massimo Antonelli
- Department Anaesthesiology, Intensive Care and Emergency Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Roma, Italy
| | - Yaseen M Arabi
- King Saud Bin Abdulaziz University for Health Sciences, King Abdullah International Medical Research Centre, Riyadh, Saudi Arabia
| | - Andrew Argent
- Department Paediatrics and Child Health, University of Cape Town, Cape Town, South Africa
| | | | - Elizabeth Bennett
- Intensive Care Unit Colonial War Memorial Hospital, Suva, Fiji
- Anaesthesia and Intensive Care, Fiji National University, Suva, Fiji
| | | | - Kevin De Asis
- Intensive Care Medicine, St Luke's Medical Centre, Quezon City, Philippines
| | - Jan De Waele
- Department of Intensive Care Medicine, Ghent University Hospital, Ghent, Belgium
| | - Jigeeshu Vasishtha Divatia
- Department of Anaesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Elisa Estenssoro
- Department of Research, Ministry of Health of the Province of Buenos Aires, Buenos Aires, Argentina
| | - Laura Evans
- Division of Pulmonary, Critical Care and Sleep Medicine, University of Washington, Seattle, USA
| | - Abul Faiz
- Toxicology Society of Bangladesh, Dhaka, Bangladesh
| | - Naomi E Hammond
- Asia Pacific Sepsis Alliance, Sydney, Australia
- Critical Care Program, The George Institute for Global Health, University of New South Wales, Sydney, Australia
- Malcolm Fisher Department of Intensive Care, Royal North Shore Hospital, Sydney, Australia
| | - Madiha Hashmi
- Department of Critical Care Medicine, Ziauddin University, Karachi, Pakistan
| | - Margaret S Herridge
- Critical Care and Respiratory Medicine, Institute of Medical Sciences, Interdepartmental Division of Critical Care Medicine, University Health Network, Toronto General Research Institute, University of Toronto, Toronto, Canada
| | - Shevin T Jacob
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Jimba Jatsho
- Paediatric Nephrology, National Medical Services, Gyaltsuen Jetsun Pema Wangchuck Mother and Child Hospital, Thimphu, Bhutan
| | - Yash Javeri
- Critical Care and Emergency Medicine, Regency Super Specialty Hospital, Indian Sepsis Forum, Lucknow, India
| | - Karima Khalid
- Department Anaesthesiology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania
| | - Lie Khie Chen
- Division of Tropical and Infectious Diseases, Department of Internal Medicine, Cipto Mangunkusumo National Hospital, Faculty of Medicine Universitas Indonesia, Jakarta, Indonesia
| | - Mitchell Levy
- Division of Pulmonary, Critical Care and Sleep Medicine, Warren Albert Medical School of Brown University, Providence, USA
| | - Ganbold Lundeg
- Critical Care and Anaesthesiology Department, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Flavia R Machado
- Intensive Care Department, Hospital São Paulo, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Yatin Mehta
- Medanta Institute of Critical Care and Anesthesiology, Medanta the Medicity, Gurgaon, Haryana, India
| | - Mervyn Mer
- Divisions of Critical Care and Pulmonology, Charlotte Maxeke Johannesburg Academic Hospital, Johannesburg, South Africa
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Do Ngoc Son
- Centre for Critical Care Medicine, Bach Mai Hospital, University of Medicine and Pharmacy, Vietnam National University, Hanoi, Vietnam
| | - Gustavo A Ospina-Tascón
- Department Intensive Care Medicine, Fundación Valle del Lili- Universidad Icesi, Cali, Colombia
| | - Marlies Ostermann
- Department Critical Care and Nephrology, King's College London, Guy's & St Thomas' Hospital London, London, UK
| | - Chairat Permpikul
- Department of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Hallie C Prescott
- Division of Pulmonary & Critical Care Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Konrad Reinhart
- Department of Anaesthesiology and Operative Intensive Care Medicine, Charité Universitäts Medizin, Berlin, Germany
- Global Sepsis Alliance & Sepsis-Stiftung Berlin, Berlin, Germany
| | - Gloria Rodriguez Vega
- Department of Critical Care Medicine, Neurosurgical ICU, HIMA-San Pablo Caguas, Puerto Rico, USA
| | - Halima S-Kabara
- Sepsis Research Group SIDOK, Aminu Kano Teaching Hospital, Bayero University Kano, Kano, Nigeria
| | - Gentle Sunder Shrestha
- Department of Critical Care Medicine, Tribhuvan University Teaching Hospital, Kathmandu, Nepal
- Faculty of Medicine, Nursing & Health Sciences, Monash University, Melbourne, Australia
| | | | - Toh Leong Tan
- Department of Emergency Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Selangor, Malaysia
| | - Subhash Todi
- Critical Care, Manipal Hospitals, Dhakuria, Kolkata, India
| | - Swagata Tripathy
- Department Anaesthesia and Critical Care, AIIMS Bhubaneswar, Bhubaneswar, India
| | - Balasubramaniam Venkatesh
- Asia Pacific Sepsis Alliance, Sydney, Australia
- Critical Care Program, The George Institute for Global Health, University of New South Wales, Sydney, Australia
| | - Jean-Louis Vincent
- Department of Intensive Care, Erasme University Hospital, University of Brussels, Brussels, Belgium
| | - Sheila Nainan Myatra
- Department of Anaesthesiology, Critical Care and Pain, Tata Memorial Hospital, Homi Bhabha National Institute, Mumbai, Maharashtra, India.
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9
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Gevaerd Martins J, Saad A, Saade G, Pacheco LD. The role of point-of-care ultrasound to monitor response of fluid replacement therapy in pregnancy. Am J Obstet Gynecol 2024; 231:563-573. [PMID: 38969197 DOI: 10.1016/j.ajog.2024.06.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/05/2024] [Accepted: 06/15/2024] [Indexed: 07/07/2024]
Abstract
Fluid management in obstetrical care is crucial because of the complex physiological conditions of pregnancy, which complicate clinical manifestations and fluid balance management. This expert review examined the use of point-of-care ultrasound to evaluate and monitor the response to fluid therapy in pregnant patients. Pregnancy induces substantial physiological changes, including increased cardiac output and glomerular filtration rate, decreased systemic vascular resistance, and decreased plasma oncotic pressure. Conditions, such as preeclampsia, further complicate fluid management because of decreased intravascular volume and increased capillary permeability. Traditional methods for assessing fluid volume status, such as physical examination and invasive monitoring, are often unreliable or inappropriate. Point-of-care ultrasound provides a noninvasive, rapid, and reliable means to assess fluid responsiveness, which is essential for managing fluid therapy in pregnant patients. This review details the various point-of-care ultrasound modalities used to measure dynamic changes in fluid status, focusing on the evaluation of the inferior vena cava, lung ultrasound, and left ventricular outflow tract. Inferior vena cava ultrasound in spontaneously breathing patients determines diameter variability, predicts fluid responsiveness, and is feasible even late in pregnancy. Lung ultrasound is crucial for detecting early signs of pulmonary edema before clinical symptoms arise and is more accurate than traditional radiography. The left ventricular outflow tract velocity time integral assesses stroke volume response to fluid challenges, providing a quantifiable measure of cardiac function, which is particularly beneficial in critical care settings where rapid and accurate fluid management is essential. This expert review synthesizes current evidence and practice guidelines, suggesting the integration of point-of-care ultrasound as a fundamental aspect of fluid management in obstetrics. It calls for ongoing research to enhance techniques and validate their use in broader clinical settings, aiming to improve outcomes for pregnant patients and their babies by preventing complications associated with both under- and overresuscitation.
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Affiliation(s)
| | - Antonio Saad
- Department of Obstetrics and Gynecology, Inova Maternal-Fetal Medicine, Fairfax, VA
| | - George Saade
- Department of Obstetrics and Gynecology, Eastern Virginia Medical School, Norfolk, VA
| | - Luis D Pacheco
- Departments of Obstetrics and Gynecology and Anesthesiology, The University of Texas Medical Branch, Galveston, TX
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10
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Castro R, Born P, Roessler E, Labra C, McNab P, Bravo S, Soto D, Kattan E, Hernández G, Bakker J. Preload responsiveness-guided fluid removal in mechanically ventilated patients with fluid overload: A comprehensive clinical-physiological study. J Crit Care 2024; 84:154901. [PMID: 39197236 DOI: 10.1016/j.jcrc.2024.154901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Revised: 08/07/2024] [Accepted: 08/20/2024] [Indexed: 09/01/2024]
Abstract
This study investigated fluid removal strategies for critically ill patients with fluid overload on mechanical ventilation. Traditionally, a negative fluid balance (FB) is aimed for. However, this approach can have drawbacks. Here, we compared a new approach, namely removing fluids until patients become fluid responsive (FR) to the traditional empiric negative balance approach. Twelve patients were placed in each group (n = 24). FR assessment was performed using passive leg raising (PLR). Both groups maintained stable blood pressure and heart function during fluid management. Notably, the FR group weaned from the ventilator significantly faster than negative FB group (both for a spontaneous breathing trial (14 h vs. 36 h, p = 0.031) and extubation (26 h vs. 57 h, p = 0.007); the difference in total ventilator time wasn't statistically significant (49 h vs. 62 h, p = 0.065). Additionally, FR group avoided metabolic problems like secondary alkalosis and potential hypokalemia seen in the negative FB group. FR-guided fluid-removal in fluid overloaded mechanically ventilated patients was a feasible, safe, and maybe superior strategy in facilitating weaning and disconnection from mechanical ventilation than negative FB-driven fluid removal. FR is a safe endpoint for optimizing cardiac function and preventing adverse consequences during fluid removal.
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Affiliation(s)
- Ricardo Castro
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile. Santiago Centro, Chile; Hospital Clínico UC-CHRISTUS, Pontificia Universidad Católica de Chile. Santiago, Chile.
| | - Pablo Born
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile. Santiago Centro, Chile.
| | - Eric Roessler
- Departamento de Nefrología, Facultad de Medicina, Pontificia Universidad Católica de Chile. Santiago Centro, Chile; Hospital Clínico UC-CHRISTUS, Pontificia Universidad Católica de Chile. Santiago, Chile.
| | - Christian Labra
- Hospital Clínico UC-CHRISTUS, Pontificia Universidad Católica de Chile. Santiago, Chile.
| | - Paul McNab
- Departamento de Enfermedades Cardiovasculares, Facultad de Medicina, Pontificia Universidad Católica de Chile. Santiago Centro, Chile; Hospital Clínico UC-CHRISTUS, Pontificia Universidad Católica de Chile. Santiago, Chile.
| | - Sebastián Bravo
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile. Santiago Centro, Chile; Hospital Clínico UC-CHRISTUS, Pontificia Universidad Católica de Chile. Santiago, Chile.
| | - Dagoberto Soto
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile. Santiago Centro, Chile.
| | - Eduardo Kattan
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile. Santiago Centro, Chile; Hospital Clínico UC-CHRISTUS, Pontificia Universidad Católica de Chile. Santiago, Chile.
| | - Glenn Hernández
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile. Santiago Centro, Chile; Hospital Clínico UC-CHRISTUS, Pontificia Universidad Católica de Chile. Santiago, Chile
| | - Jan Bakker
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile. Santiago Centro, Chile; Department of Intensive Care, Erasmus MC University Medical Center. Rotterdam, the Netherlands.
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11
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Nunnally J, Ko SM, Ugale K, Lowe T, Bond J, Kenny JES, Fargo RA, Haycock K. A nursing-led sepsis response team guiding resuscitation with point-of-care ultrasound: A review and model for improving bundle compliance while individualizing sepsis care. SAGE Open Med 2024; 12:20503121241290378. [PMID: 39526100 PMCID: PMC11549707 DOI: 10.1177/20503121241290378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2024] [Accepted: 09/23/2024] [Indexed: 11/16/2024] Open
Abstract
A dysregulated host response to infection resulting in life-threatening organ dysfunction defines the onset of sepsis. Unfortunately, sepsis is common, costly, and deadly. The Surviving Sepsis Campaign publishes regularly updated, evidence-informed, detection, and treatment guidelines culminating in time-sensitive care "bundles." The goal of these bundles is to expedite sepsis recognition because it is widely held that early treatment is life-saving. Hospitals are mandated to publicly report their bundle compliance, and this will soon be tied to hospital reimbursement. For these reasons, hospitals are creating sepsis emergency response teams which are a form of a rapid response team consisting of dedicated medical professionals who evaluate patients with suspected sepsis and initiate therapy when appropriate. Evidence to date support sepsis emergency response teams as a mechanism to improve bundle compliance, and potentially, patient outcome. Nevertheless, some elements of bundled sepsis care are controversial (e.g., intravenous fluid administration) as some argue that mandated treatment precludes personalized care. Herein, we briefly describe general sepsis emergency response team structure, review evidence supporting sepsis emergency response teams to improve bundle compliance and patient outcome and report our unique experience incorporating point of care ultrasound-to guide intravenous fluid-into a nursing-led sepsis team. We propose that our sepsis emergency response team approach allays concern that sepsis care is either bundled or personalized. Instead, incorporating point of care ultrasound into a nursing-led sepsis emergency response team increases bundle compliance and individualizes care.
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Affiliation(s)
- Jared Nunnally
- Department of Emergency Medicine, Riverside University Health System Medical Center, Moreno Valley, CA, USA
| | - So Mi Ko
- Department of Emergency Medicine, Riverside University Health System Medical Center, Moreno Valley, CA, USA
| | - Kristen Ugale
- Department of Emergency Medicine, Riverside University Health System Medical Center, Moreno Valley, CA, USA
| | - Tammy Lowe
- Department of Emergency Medicine, Riverside University Health System Medical Center, Moreno Valley, CA, USA
| | - Jacyln Bond
- Department of Emergency Medicine, Riverside University Health System Medical Center, Moreno Valley, CA, USA
| | - Jon-Emile S Kenny
- Health Sciences North Research Institute, Emerging Areas of Clinical Research, Sudbury, ON, Canada
| | - Ramiz A Fargo
- Division of Pulmonary and Critical Care, Department of Internal Medicine, Riverside University Medical Center, Moreno Valley, CA, USA
- Division of Pulmonary, Critical Care, Hyperbaric, and Sleep Medicine, Department of Internal Medicine, Loma Linda University Medical Center, Loma Linda, CA, USA
| | - Korbin Haycock
- Department of Emergency Medicine, Riverside University Health System Medical Center, Moreno Valley, CA, USA
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12
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Mallat J, Abou-Arab O, Lemyze M, Saleh D, Guinot PG, Fischer MO. Changes in central venous-to-arterial PCO 2 difference and central venous oxygen saturation as markers to define fluid responsiveness in critically ill patients: a pot-hoc analysis of a multi-center prospective study. Crit Care 2024; 28:360. [PMID: 39516883 PMCID: PMC11549741 DOI: 10.1186/s13054-024-05156-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2024] [Accepted: 11/01/2024] [Indexed: 11/16/2024] Open
Abstract
BACKGROUND The main aim of the study whether changes in central venous-to-arterial CO2 difference (ΔP(v-a)CO2) and central venous oxygen saturation (ΔScvO2) induced by volume expansion (VE) are reliable parameters to define fluid responsiveness (FR) in sedated and mechanically ventilated septic patients. We also sought to determine whether the degree of FR was related to baseline ScvO2 and P(v-a)CO2 levels. METHODS This was a post-hoc analysis of a multicenter prospective study. We included 205 mechanically ventilated patients with acute circulatory failure. Cardiac index (CI), P(v-a)CO2, ScvO2, and other hemodynamic variables were measured before and after VE. A VE-induced increase in CI > 15% defined fluid responders. Areas under the receiver operating characteristic curves (AUCs) and the gray zones were determined for ΔP(v-a)CO2 and ΔScvO2. RESULTS One hundred fifteen patients (56.1%) were classified as fluid responders. The AUCs for ΔP(v-a)CO2 and ΔScvO2 to define FR were 0.831 (95% CI 0.772-0.880) (p < 0.001) and 0.801 (95% CI 0.739-0.853) (p < 0.001), respectively. ΔP(v-a)CO2 ≤ 2.1 mmHg and ΔScvO2 ≥ 3.4% after VE allowed the categorization between responders and non-responders with positive predictive values of 90% and 86% and negative predictive values of 58% and 64%, respectively. The gray zones for ΔP(v-a)CO2 (- 2 to 0 mmHg) and ΔScvO2 (- 1 to 5%) included 22% and 40.5% of patients, respectively. ΔP(v-a)CO2 and ΔScvO2 were independently associated with FR in multivariable analysis. No significant relationships were found between pre-infusion ScvO2 and P(v-a)CO2 levels and FR. CONCLUSION In mechanically critically ill patients, ΔP(v-a)CO2 and ΔScvO2 are reliable parameters to define FR and can be used in the absence of CI measurement. The response to VE was independent of baseline ScvO2 and P(v-a)CO2 levels. Clinical trial registration The study was registered in the ClinicalTrials.gov registry: NCT03225378, date: July 20, 2017.
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Affiliation(s)
- Jihad Mallat
- Critical Care Division, Critical Care Institute, Cleveland Clinic Abu Dhabi, 112412, Abu Dhabi, United Arab Emirates.
- Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, 44106, USA.
| | - Osama Abou-Arab
- Anesthesia and Critical Care Department, Amiens Hospital University, 80054, Amiens, France
| | - Malcolm Lemyze
- Department of Critical Care Medicine, Arras Hospital, 6200, Arras, France
| | | | | | - Marc-Olivier Fischer
- Institut Aquitain du Cœur, Clinique Saint-Augustin, Elsan, 114 Avenue d'Arès, 33074, Bordeaux Cedex, France
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13
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Janssens U. [Functional hemodynamic monitoring]. Med Klin Intensivmed Notfmed 2024; 119:614-623. [PMID: 39347816 DOI: 10.1007/s00063-024-01190-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Accepted: 09/09/2024] [Indexed: 10/01/2024]
Abstract
BACKGROUND Critically ill patients in the intensive care unit require intensified monitoring to control the treatment with volume and/or vasoactive substances. RESEARCH QUESTION What role does functional hemodynamic monitoring play in controlling treatment and what techniques are used to manage this? MATERIAL AND METHODS Review of the current literature. RESULTS AND DISCUSSION Precise knowledge of the physiology of the cardiovascular system as well as the pathophysiology of individual clinical pictures and the possibilities of invasive and noninvasive monitoring are the prerequisites for the indications, implementation and interpretation of functional hemodynamic monitoring. An understanding of the heart-lung interaction and the influence of invasive ventilation on the volumetric target parameters, such as stroke volume variation, systolic pressure variation and pulse pressure variation as well as sonography of the inferior vena cava are indispensable prerequisites for the question of volume responsiveness. Other maneuvers, such as the passive leg raising test, can be very helpful when deciding on volume administration in everyday clinical practice. Static parameters such as central venous pressure generally play no role and if any only a subordinate one.
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Affiliation(s)
- Uwe Janssens
- Klinik für Innere Medizin und Internistische Intensivmedizin, St. Antonius Hospital Eschweiler, Dechant-Deckers-Str. 8, 52249, Eschweiler, Deutschland.
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14
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Jong CB, Kuo JC, Lin IC. Kidney protection strategy lowers the risk of contrast-associated acute kidney injury. PLoS One 2024; 19:e0312618. [PMID: 39446763 PMCID: PMC11500849 DOI: 10.1371/journal.pone.0312618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 10/09/2024] [Indexed: 10/26/2024] Open
Abstract
We developed a comprehensive kidney protection strategy (KPS), which comprises left ventricular end-diastolic pressure-guided saline hydration, ultralow contrast coronary angiography, and a staged coronary revascularization procedure under suitable conditions. This study aimed to investigate KPS's effect on the risk of developing contrast-associated acute kidney injury (CA-AKI) among persons with moderate-to-advanced kidney insufficiency (KI). Seventy patients who had undergone cardiac catheterization with an estimated glomerular filtration rate (eGFR) of 15-45 mL/min/1.73 m2 were investigated retrospectively. Among these, 19 patients who had received KPS and 51 who had undergone cardiac catheterization with usual care (UC) were enrolled. CA-AKI was defined as a 0.3-mg/dL increase in serum creatinine levels or dialysis initiation within 72 h after contrast exposure. The inverse probability of treatment weighting (IPTW)-adjusted cohort was analyzed according to the Mehran 2 risk categories. Patients' mean age was 73.3 ± 9.6 years; mean eGFR was 29.8 ± 8.5 mL/min/1.73 m2; and median of Mehran 2 risk score, 8. Most patients presented with acute myocardial infarction (AMI) or heart failure, and one-fifth of the administered cardiac catheterizations were emergency procedures. After the IPTW adjustment, the KPS group showed a significantly lower CA-AKI risk than the UC group (4% vs. 20.4%; odds ratio 0.19, 95% confidence interval 0.05-0.66). This effect was consistent across various subgroups according to different variables, including old age, AMI, advanced KI, high-risk category, left ventricular systolic dysfunction, and multivessel disease. Conclusively, KPS may reduce the CA-AKI risk in high-risk patients with moderate-to-advanced KI who have undergone cardiac catheterization.
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Affiliation(s)
- Chien-Boon Jong
- Department of Internal Medicine, National Taiwan University Hospital, Hsin-Chu Branch, Hsin-Chu, Taiwan
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
- College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Jui-Cheng Kuo
- Department of Radiology, National Taiwan University Hospital, Hsin-Chu Branch, Hsin-Chu, Taiwan
| | - I-Chuan Lin
- Department of Nursing, National Taiwan University Hospital, Hsin-Chu Branch, Hsin-Chu, Taiwan
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15
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Jozwiak M, Teboul JL. Heart-Lungs interactions: the basics and clinical implications. Ann Intensive Care 2024; 14:122. [PMID: 39133379 PMCID: PMC11319696 DOI: 10.1186/s13613-024-01356-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 07/24/2024] [Indexed: 08/13/2024] Open
Abstract
Heart-lungs interactions are related to the interplay between the cardiovascular and the respiratory system. They result from the respiratory-induced changes in intrathoracic pressure, which are transmitted to the cardiac cavities and to the changes in alveolar pressure, which may impact the lung microvessels. In spontaneously breathing patients, consequences of heart-lungs interactions are during inspiration an increase in right ventricular preload and afterload, a decrease in left ventricular preload and an increase in left ventricular afterload. In mechanically ventilated patients, consequences of heart-lungs interactions are during mechanical insufflation a decrease in right ventricular preload, an increase in right ventricular afterload, an increase in left ventricular preload and a decrease in left ventricular afterload. Physiologically and during normal breathing, heart-lungs interactions do not lead to significant hemodynamic consequences. Nevertheless, in some clinical settings such as acute exacerbation of chronic obstructive pulmonary disease, acute left heart failure or acute respiratory distress syndrome, heart-lungs interactions may lead to significant hemodynamic consequences. These are linked to complex pathophysiological mechanisms, including a marked inspiratory negativity of intrathoracic pressure, a marked inspiratory increase in transpulmonary pressure and an increase in intra-abdominal pressure. The most recent application of heart-lungs interactions is the prediction of fluid responsiveness in mechanically ventilated patients. The first test to be developed using heart-lungs interactions was the respiratory variation of pulse pressure. Subsequently, many other dynamic fluid responsiveness tests using heart-lungs interactions have been developed, such as the respiratory variations of pulse contour-based stroke volume or the respiratory variations of the inferior or superior vena cava diameters. All these tests share the same limitations, the most frequent being low tidal volume ventilation, persistent spontaneous breathing activity and cardiac arrhythmia. Nevertheless, when their main limitations are properly addressed, all these tests can help intensivists in the decision-making process regarding fluid administration and fluid removal in critically ill patients.
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Affiliation(s)
- Mathieu Jozwiak
- Service de Médecine Intensive Réanimation, CHU de Nice Hôpital Archet 1, 151 Route Saint Antoine de Ginestière, 06200, Nice, France.
- UR2CA, Unité de Recherche Clinique Côte d'Azur, Université Côte d'Azur, 06200, Nice, France.
| | - Jean-Louis Teboul
- Faculté de Médecine Paris-Saclay, Université Paris-Saclay, 94270, Le Kremlin-Bicêtre, France
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Sricharoenchai T, Saisirivechakun P. Effects of dynamic versus static parameter-guided fluid resuscitation in patients with sepsis: A randomized controlled trial. F1000Res 2024; 13:528. [PMID: 39184243 PMCID: PMC11342037 DOI: 10.12688/f1000research.147875.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/23/2024] [Indexed: 08/27/2024] Open
Abstract
Background Fluid resuscitation is an essential component for sepsis treatment. Although several studies demonstrated that dynamic variables were more accurate than static variables for prediction of fluid responsiveness, fluid resuscitation guidance by dynamic variables is not standard for treatment. The objectives were to determine the effects of dynamic inferior vena cava (IVC)-guided versus (vs.) static central venous pressure (CVP)-guided fluid resuscitation in septic patients on mortality; and others, i.e., resuscitation targets, shock duration, fluid and vasopressor amount, invasive respiratory support, length of stay and adverse events. Methods A single-blind randomized controlled trial was conducted at Thammasat University Hospital between August 2016 and April 2020. Septic patients were stratified by acute physiologic and chronic health evaluation II (APACHE II) <25 or ≥25 and randomized by blocks of 2 and 4 to fluid resuscitation guidance by dynamic IVC or static CVP. Results Of 124 patients enrolled, 62 were randomized to each group, and one of each was excluded from mortality analysis. Baseline characteristics were comparable. The 30-day mortality rates between dynamic IVC vs. static CVP groups were not different (34.4% vs. 45.9%, p=0.196). Relative risk for 30-day mortality of dynamic IVC group was 0.8 (95%CI=0.5-1.2, p=0.201). Different outcomes were median (interquartile range) of shock duration (0.8 (0.4-1.6) vs. 1.5 (1.1-3.1) days, p=0.001) and norepinephrine (NE) dose (6.8 (3.9-17.8) vs. 16.1 (7.6-53.6) milligrams, p=0.008 and 0.1 (0.1-0.3) vs. 0.3 (0.1-0.8) milligram⋅kilogram -1, p=0.017). Others were not different. Conclusions Dynamic IVC-guided fluid resuscitation does not affect mortality of septic patients. However, this may reduce shock duration and NE dose, compared with static CVP guidance.
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Affiliation(s)
- Thiti Sricharoenchai
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Thammasat University, Pathum Thani, 12120, Thailand
| | - Pannarat Saisirivechakun
- Department of Medicine, Nakhon Pathom Hospital, Nakhon Pathom, 73000, Thailand
- Department of Medicine, Faculty of Medicine, Nakhon Pathom Hospital, Nakhon Pathom, 73000, Thailand
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Cheney MA, Smith MP, Burkhardt JN, Davis WT, Brown DJ, Horn C, Hare J, Alderman M, Nelson E, Proctor M, Goodman M, Sams V, Thiele R, Strilka RJ. The Ability of Military Critical Care Air Transport Members to Visually Estimate Percent Systolic Pressure Variation. Mil Med 2024; 189:1514-1522. [PMID: 37489875 DOI: 10.1093/milmed/usad281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 05/02/2023] [Accepted: 07/11/2023] [Indexed: 07/26/2023] Open
Abstract
INTRODUCTION Inappropriate fluid management during patient transport may lead to casualty morbidity. Percent systolic pressure variation (%SPV) is one of several technologies that perform a dynamic assessment of fluid responsiveness (FT-DYN). Trained anesthesia providers can visually estimate and use %SPV to limit the incidence of erroneous volume management decisions to 1-4%. However, the accuracy of visually estimated %SPV by other specialties is unknown. The aim of this article is to determine the accuracy of estimated %SPV and the incidence of erroneous volume management decisions for Critical Care Air Transport (CCAT) team members before and after training to visually estimate and utilize %SPV. MATERIAL AND METHODS In one sitting, CCAT team providers received didactics defining %SPV and indicators of fluid responsiveness and treatment with %SPV ≤7 and ≥14.5 defining a fluid nonresponsive and responsive patient, respectively; they were then shown ten 45-second training arterial waveforms on a simulated Propaq M portable monitor's screen. Study subjects were asked to visually estimate %SPV for each arterial waveform and queried whether they would treat with a fluid bolus. After each training simulation, they were told the true %SPV. Seven days post-training, the subjects were shown a different set of ten 45-second testing simulations and asked to estimate %SPV and choose to treat, or not. Nonparametric limits of agreement for differences between true and estimated %SPV were analyzed using Bland-Altman graphs. In addition, three errors were defined: (1) %SPV visual estimate errors that would label a volume responsive patient as nonresponsive, or vice versa; (2) incorrect treatment decisions based on estimated %SPV (algorithm application errors); and (3) incorrect treatment decisions based on true %SPV (clinically significant treatment errors). For the training and testing simulations, these error rates were compared between, and within, provider groups. RESULTS Sixty-one physicians (MDs), 64 registered nurses (RNs), and 53 respiratory technicians (RTs) participated in the study. For testing simulations, the incidence and 95% CI for %SPV estimate errors with sufficient magnitude to result in a treatment error were 1.4% (0.5%, 3.2%), 1.6% (0.6%, 3.4%), and 4.1% (2.2%, 6.9%) for MDs, RNs, and RTs, respectively. However, clinically significant treatment errors were statistically more common for all provider types, occurring at a rate of 7%, 10%, and 23% (all P < .05). Finally, students did not show clinically relevant reductions in their errors between training and testing simulations. CONCLUSIONS Although most practitioners correctly visually estimated %SPV and all students completed the training in interpreting and applying %SPV, all groups persisted in making clinically significant treatment errors with moderate to high frequency. This suggests that the treatment errors were more often driven by misapplying FT-DYN algorithms rather than by inaccurate visual estimation of %SPV. Furthermore, these errors were not responsive to training, suggesting that a decision-making cognitive aid may improve CCAT teams' ability to apply FT-DYN technologies.
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Affiliation(s)
- Mark A Cheney
- Center for Sustainment of Trauma and Readiness Skills, University of Cincinnati, Cincinnati, OH 45219, USA
- Department of Anesthesiology, University of Cincinnati, Cincinnati, OH 45219, USA
| | - Maia P Smith
- Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, OH 45324, USA
| | - Joshua N Burkhardt
- Center for Sustainment of Trauma and Readiness Skills, University of Cincinnati, Cincinnati, OH 45219, USA
- Department of Emergency Medicine, University of Cincinnati, Cincinnati, OH 45219, USA
| | - William T Davis
- United States Air Force En Route Care Research Center, 59th Medical Wing, Science and Technology, Lackland AFB TX 78236, USA
| | - Daniel J Brown
- Department of Emergency Medicine, Wright State University, Dayton, OH 45324, USA
| | - Christopher Horn
- Department of Surgery, University of Cincinnati, Cincinnati, OH 45219, USA
| | - Jonathan Hare
- Center for Sustainment of Trauma and Readiness Skills, University of Cincinnati, Cincinnati, OH 45219, USA
| | - Mark Alderman
- Center for Sustainment of Trauma and Readiness Skills, University of Cincinnati, Cincinnati, OH 45219, USA
| | - Eric Nelson
- Center for Sustainment of Trauma and Readiness Skills, University of Cincinnati, Cincinnati, OH 45219, USA
| | - Melissa Proctor
- Center for Sustainment of Trauma and Readiness Skills, University of Cincinnati, Cincinnati, OH 45219, USA
| | - Michael Goodman
- Department of Surgery, University of Cincinnati, Cincinnati, OH 45219, USA
| | - Valerie Sams
- Center for Sustainment of Trauma and Readiness Skills, University of Cincinnati, Cincinnati, OH 45219, USA
- Department of Surgery, University of Cincinnati, Cincinnati, OH 45219, USA
| | - Robert Thiele
- Department of Anesthesiology, University of Virginia Health Sciences Center, Charlottesville, VA 22903, USA
| | - Richard J Strilka
- Center for Sustainment of Trauma and Readiness Skills, University of Cincinnati, Cincinnati, OH 45219, USA
- Department of Surgery, University of Cincinnati, Cincinnati, OH 45219, USA
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Savaser S, Akdogan A, Erturk E, Kutanis D, Gul R, Karapolat BS, Kılıç KN. Effects of intraoperative fluid management on hemodynamics and tissue oxygenation according to the Pleth Variability Index in thoracic surgery. TURK GOGUS KALP DAMAR CERRAHISI DERGISI 2024; 32:307-316. [PMID: 39513167 PMCID: PMC11538936 DOI: 10.5606/tgkdc.dergisi.2024.25372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 04/05/2024] [Indexed: 11/15/2024]
Abstract
Background The aim of this study was to compare the total fluid volume performed by noninvasive Pleth Variability Index in thoracic surgery patients in comparison to conventional fluid management. Methods In this prospective randomized controlled study conducted between May 2019 and May 2020, 80 patients (68 males, 12 females; mean age: 58.5±6.7 years; range, 18 to 65 years) were divided into two groups: control (Group C) and the Pleth Variability Index (Group P). After performing routine anesthesia and Pleth Variability Index monitoring for all patients, fluids were given at a rate of 2 mL/kg/h with the standard anesthesia technique. Additional fluid supplementation was provided based on hemodynamic data in Group C. In Group P, 250 mL bolus crystalloid fluid was provided when Pleth Variability Index was >14%. Mean arterial pressure, heart rate, oxygen saturation, arterial blood gas, and blood biochemistry were recorded. Total fluid volumes and urinary output were also recorded. Results There was no significant difference between the groups in terms of total fluid volumes or urinary output. In the postoperative period, the oxygen saturation and mean arterial pressure of Group P were found to be higher than those of Group C. The postoperative creatinine and lactate values of Group P were lower than those of Group C. Conclusion Although there was no significant difference in the total fluid given to the patients, fluid management by Pleth Variability Index monitoring had a positive effect on mean arterial pressure, oxygen saturation, lactate, and creatinine levels.
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Affiliation(s)
- Semanur Savaser
- Department of Anesthesiology and Critical Care, Faculty of Medicine, Karadeniz Technical University, Trabzon, Türkiye
| | - Ali Akdogan
- Department of Anesthesiology and Critical Care, Faculty of Medicine, Karadeniz Technical University, Trabzon, Türkiye
| | - Engin Erturk
- Department of Anesthesiology and Critical Care, Faculty of Medicine, Karadeniz Technical University, Trabzon, Türkiye
| | - Dilek Kutanis
- Department of Anesthesiology and Critical Care, Faculty of Medicine, Karadeniz Technical University, Trabzon, Türkiye
| | - Rauf Gul
- Department of Anesthesiology and Critical Care, Faculty of Medicine, Gaziantep University, Gaziantep, Türkiye
| | - Bekir Sami Karapolat
- Departments of Thoracic Surgery, Faculty of Medicine, Karadeniz Technical University, Trabzon, Türkiye
| | - Kubra Nur Kılıç
- Departments of Thoracic Surgery, Faculty of Medicine, Karadeniz Technical University, Trabzon, Türkiye
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Gawalkar AA, Batta A. Ultrasound based estimate of central venous pressure: Are we any closer? World J Cardiol 2024; 16:310-313. [PMID: 38993581 PMCID: PMC11235208 DOI: 10.4330/wjc.v16.i6.310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 05/01/2024] [Accepted: 05/22/2024] [Indexed: 06/24/2024] Open
Abstract
Central venous pressure (CVP) serves as a direct approximation of right atrial pressure and is influenced by factors like total blood volume, venous compliance, cardiac output, and orthostasis. Normal CVP falls within 8-12 mmHg but varies with volume status and venous compliance. Monitoring and managing disturbances in CVP are vital in patients with circulatory shock or fluid disturbances. Elevated CVP can lead to fluid accumulation in the interstitial space, impairing venous return and reducing cardiac preload. While pulmonary artery catheterization and central venous catheter obtained measurements are considered to be more accurate, they carry risk of complications and their usage has not shown clinical improvement. Ultrasound-based assessment of the internal jugular vein (IJV) offers real-time, non-invasive measurement of static and dynamic parameters for estimating CVP. IJV parameters, including diameter and ratio, has demonstrated good correlation with CVP. Despite significant advancements in non-invasive CVP measurement, a reliable tool is yet to be found. Present methods can offer reasonable guidance in assessing CVP, provided their limitations are acknowledged.
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Affiliation(s)
- Atit A Gawalkar
- Department of Cardiology, Fortis Hospital, Himachal Pradesh, Kangra 176001, India
| | - Akash Batta
- Department of Cardiology, Dayanand Medical College and Hospital, Punjab, Ludhiana 141001, India.
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Lipszyc AC, Walker SCD, Beech AP, Wilding H, Akhlaghi H. Predicting Fluid Responsiveness Using Carotid Ultrasound in Mechanically Ventilated Patients: A Systematic Review and Meta-Analysis of Diagnostic Test Accuracy Studies. Anesth Analg 2024; 138:1174-1186. [PMID: 38289868 DOI: 10.1213/ane.0000000000006820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
BACKGROUND A noninvasive and accurate method of determining fluid responsiveness in ventilated patients would help to mitigate unnecessary fluid administration. Although carotid ultrasound has been previously studied for this purpose, several studies have recently been published. We performed an updated systematic review and meta-analysis to evaluate the accuracy of carotid ultrasound as a tool to predict fluid responsiveness in ventilated patients. METHODS Studies eligible for review investigated the accuracy of carotid ultrasound parameters in predicting fluid responsiveness in ventilated patients, using sensitivity and specificity as markers of diagnostic accuracy (International Prospective Register of Systematic Reviews [PROSPERO] CRD42022380284). All included studies had to use an independent method of determining cardiac output and exclude spontaneously ventilated patients. Six bibliographic databases and 2 trial registries were searched. Medline, Embase, Emcare, APA PsycInfo, CINAHL, and the Cochrane Library were searched on November 4, 2022. Clinicaltrials.gov and Australian New Zealand Clinical Trials Registry were searched on February 24, 2023. Results were pooled, meta-analysis was conducted where possible, and hierarchical summary receiver operating characteristic models were used to compare carotid ultrasound parameters. Bias and evidence quality were assessed using the Quality Assessment of Diagnostic Accuracy Studies (QUADAS) tool and the Grading of Recommendations, Assessment, Development, and Evaluations (GRADE) guidelines. RESULTS Thirteen prospective clinical studies were included (n = 648 patients), representing 677 deliveries of volume expansion, with 378 episodes of fluid responsiveness (58.3%). A meta-analysis of change in carotid Doppler peak velocity (∆CDPV) yielded a sensitivity of 0.79 (95% confidence interval [CI], 0.74-0.84) and a specificity of 0.85 (95% CI, 0.76-0.90). Risk of bias relating to recruitment methodology, the independence of index testing to reference standards and exclusionary clinical criteria were evaluated. Overall quality of evidence was low. Study design heterogeneity, including a lack of clear parameter cutoffs, limited the generalizability of our results. CONCLUSIONS In this meta-analysis, we found that existing literature supports the ability of carotid ultrasound to predict fluid responsiveness in mechanically ventilated adults. ∆CDPV may be an accurate carotid parameter in certain contexts. Further high-quality studies with more homogenous designs are needed to further validate this technology.
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Affiliation(s)
- Adam C Lipszyc
- From the Department of Anaesthesia and Acute Pain Medicine, St Vincent's Hospital, Melbourne, Victoria, Australia
| | - Samuel C D Walker
- Department of Emergency Medicine, St Vincent's Hospital, Melbourne, Victoria, Australia
- Department of Medical Education, University of Melbourne, Melbourne, Victoria, Australia
| | - Alexander P Beech
- From the Department of Anaesthesia and Acute Pain Medicine, St Vincent's Hospital, Melbourne, Victoria, Australia
| | - Helen Wilding
- Library Service, St Vincent's Hospital, Melbourne, Victoria, Australia
| | - Hamed Akhlaghi
- Department of Emergency Medicine, St Vincent's Hospital, Melbourne, Victoria, Australia
- Department of Medical Education, University of Melbourne, Melbourne, Victoria, Australia
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Patel S, Puri N, Hussain S, Rachoin JS, Green A. A Review of Fluid Bolus in Critically Ill Patients After Initial Volume Expansion: Bayesian Probability Analysis and Case Studies. Cureus 2024; 16:e59517. [PMID: 38826945 PMCID: PMC11144048 DOI: 10.7759/cureus.59517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2024] [Indexed: 06/04/2024] Open
Abstract
Introduction Fluid resuscitation is a crucial intervention for the management of critically ill patients. However, after initial volume expansion, the advantages of fluid bolus administration remain controversial. Our aim was to investigate the probabilistic reasoning against fluid bolus administration in critically ill patients after initial volume expansion. We then applied this reasoning to two hypothetical case studies that evaluated the benefits and risks associated with a fluid bolus for each patient. Methods We analyzed data from 12 previously published studies, totaling 334 patients, on fluid responsiveness in critically ill patients. Owing to differences in these studies, we used a Monte Carlo simulation based on their parameters to improve our Bayesian prior, generate strong estimates, and address uncertainty. Using the established Bayesian prior for volume responsiveness, we scrutinized two hypothetical case studies employing Bayesian mathematical notation to assess the pre-test probability, posterior probability, and likelihood ratios in patients with septic shock. Results The Monte Carlo simulation yielded a mean response rate of 0.54 (SD = 0.026), suggesting that only approximately 54% of patients were responsive to fluid bolus administration. These results had an effective sample size of 17,204 and an R-hat value of 1, demonstrating the reliability of our results. In our Bayesian case studies, we demonstrate the low probabilities of volume and VO2 responsiveness over time using common bedside testing. Conclusion Our analysis shows that the pretest and posttest probabilities for volume responsiveness following initial fluid resuscitation are low. Additional bedside testing should be pursued before administering additional volume. This approach emphasizes the importance of evidence-based decision-making in the management of critically ill patients to optimize patient outcomes and minimize potential risks.
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Affiliation(s)
- Sharad Patel
- Critical Care, Cooper University Hospital, Camden, USA
| | - Nitin Puri
- Critical Care, Cooper University Hospital, Camden, USA
| | | | | | - Adam Green
- Critical Care, Cooper University Hospital, Camden, USA
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Hotz E, van Gemmern T, Kriege M. Are We Always Right? Evaluation of the Performance and Knowledge of the Passive Leg Raise Test in Detecting Volume Responsiveness in Critical Care Patients: A National German Survey. J Clin Med 2024; 13:2518. [PMID: 38731046 PMCID: PMC11084342 DOI: 10.3390/jcm13092518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/22/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Background: In hemodynamically unstable patients, the passive leg raise (PLR) test is recommended for use as a self-fluid challenge for predicting preload responsiveness. However, to interpret the hemodynamic effects and reliability of the PLR, the method of performing it is of the utmost importance. Our aim was to determine the current practice of the correct application and interpretation of the PLR in intensive care patients. Methods: After ethical approval, we designed a cross-sectional online survey with a short user-friendly online questionnaire. Using a random sample of 1903 hospitals in Germany, 182 hospitals with different levels of care were invited via an email containing a link to the questionnaire. The online survey was conducted between December 2021 and January 2022. All critical care physicians from different medical disciplines were surveyed. We evaluated the correct points of concern for the PLR, including indication, contraindication, choice of initial position, how to interpret and apply the changes in cardiac output, and the limitations of the PLR. Results: A total of 292 respondents participated in the online survey, and 283/292 (97%) of the respondents completed the full survey. In addition, 132/283 (47%) were consultants and 119/283 (42%) worked at a university medical center. The question about the performance of the PLR was answered correctly by 72/283 (25%) of the participants. The limitations of the PLR, such as intra-abdominal hypertension, were correctly selected by 150/283 (53%) of the participants. The correct effect size (increase in stroke volume ≥ 10%) was correctly identified by 217/283 (77%) of the participants. Conclusions: Our results suggest a considerable disparity between the contemporary practice of the correct application and interpretation of the PLR and the practice recommendations from recently published data at German ICUs.
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Affiliation(s)
| | | | - Marc Kriege
- Department of Anaesthesiology, University Medical Centre, Johannes Gutenberg-University Mainz, 55131 Mainz, Germany; (E.H.); (T.v.G.)
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Cicetti M, Bagate F, Lapenta C, Gendreau S, Masi P, Mekontso Dessap A. Effect of volume infusion on left atrial strain in acute circulatory failure. Ann Intensive Care 2024; 14:53. [PMID: 38592568 PMCID: PMC11003961 DOI: 10.1186/s13613-024-01274-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 03/10/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND Left atrial strain (LAS) is a measure of atrial wall deformation during cardiac cycle and reflects atrial contribution to cardiovascular performance. Pathophysiological significance of LAS in critically ill patients with hemodynamic instability has never been explored. This study aimed at describing LAS and its variation during volume expansion and to assess the relationship between LAS components and fluid responsiveness. METHODS This prospective observational study was performed in a French ICU and included patients with acute circulatory failure, for whom the treating physician decided to proceed to volume expansion (rapid infusion of 500 mL of crystalloid solution). Trans-thoracic echocardiography was performed before and after the fluid infusion. LAS analysis was performed offline. Fluid responsiveness was defined as an increase in velocity-time integral (VTI) of left ventricular outflow tract ≥ 10%. RESULTS Thirty-eight patients were included in the final analysis. Seventeen (45%) patients were fluid responders. LAS analysis had a good feasibility and reproducibility. Overall, LAS was markedly reduced in all its components, with values of 19 [15 - 32], -9 [-19 - -7] and - 9 [-13 - -5] % for LAS reservoir (LASr), conduit (LAScd) and contraction (LASct), respectively. LASr, LAScd and LASct significantly increased during volume expansion in the entire population. Baseline value of LAS did not predict fluid responsiveness and the changes in LAS and VTI during volume expansion were not significantly correlated. CONCLUSIONS LAS is severely altered during acute circulatory failure. LAS components significantly increase during fluid administration, but cannot be used to predict or assess fluid responsiveness.
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Affiliation(s)
- Marta Cicetti
- Service de Médecine Intensive Réanimation, AP-HP, Centre Hôpitaux Universitaires Henri Mondor, DHU A-TVB, 1 rue Gustave Eiffel, Créteil Cedex, F-94010, France
- Università Cattolica del Sacro Cuore, Roma, Italy
| | - François Bagate
- Service de Médecine Intensive Réanimation, AP-HP, Centre Hôpitaux Universitaires Henri Mondor, DHU A-TVB, 1 rue Gustave Eiffel, Créteil Cedex, F-94010, France.
- Faculté de Médecine, Groupe de recherche clinique CARMAS, Université Paris Est Créteil, Créteil, F- 94010, France.
| | - Cristina Lapenta
- Service de Médecine Intensive Réanimation, AP-HP, Centre Hôpitaux Universitaires Henri Mondor, DHU A-TVB, 1 rue Gustave Eiffel, Créteil Cedex, F-94010, France
| | - Ségolène Gendreau
- Service de Médecine Intensive Réanimation, AP-HP, Centre Hôpitaux Universitaires Henri Mondor, DHU A-TVB, 1 rue Gustave Eiffel, Créteil Cedex, F-94010, France
- Faculté de Médecine, Groupe de recherche clinique CARMAS, Université Paris Est Créteil, Créteil, F- 94010, France
| | - Paul Masi
- Service de Médecine Intensive Réanimation, AP-HP, Centre Hôpitaux Universitaires Henri Mondor, DHU A-TVB, 1 rue Gustave Eiffel, Créteil Cedex, F-94010, France
- Faculté de Médecine, Groupe de recherche clinique CARMAS, Université Paris Est Créteil, Créteil, F- 94010, France
| | - Armand Mekontso Dessap
- Service de Médecine Intensive Réanimation, AP-HP, Centre Hôpitaux Universitaires Henri Mondor, DHU A-TVB, 1 rue Gustave Eiffel, Créteil Cedex, F-94010, France
- Faculté de Médecine, Groupe de recherche clinique CARMAS, Université Paris Est Créteil, Créteil, F- 94010, France
- INSERM U955, Institut Mondor de Recherche Biomédicale, Créteil, F-94010, France
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Fouche PF, Nichols M, Scott J, Richardson J, Bendall J. Crystalloid Fluid Management of Non-Traumatic Hypotension by New South Wales Ambulance. PREHOSP EMERG CARE 2024; 28:771-778. [PMID: 38436287 DOI: 10.1080/10903127.2024.2306247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/23/2023] [Accepted: 12/13/2023] [Indexed: 03/05/2024]
Abstract
INTRODUCTION Shock is circulatory insufficiency, inadequate oxygen delivery, and cellular hypoxia. Intravenous fluids are essential for shock management. Despite treatment, patients can face persistent shock with ongoing hypotension, contributing to higher mortality. This analysis aims to quantify hypotensive non-traumatic cases in an Australian ambulance service, determine persistent hypotension prevalence, and assess paramedic-administered intravascular fluids' impact on blood pressure changes. METHODS This study is a retrospective analysis of prehospital fluid resuscitation by New South Wales Ambulance paramedics during 2022. Hypotension is defined as a systolic blood pressure of ≤ 90 mmHg, and persistent hypotension is a systolic blood pressure consistently below 90 mmHg across all observations, with a final blood pressure below 90 mmHg. This study aimed to determine the volume of fluid resuscitation at which a plateau in population-level systolic blood pressure response is observed, by calculating the derivative of the fitted logistic regression model. Moreover, this analysis identified the relative contribution of factors influencing the probability of an attempt at intravenous or intraosseous access using machine learning. RESULTS Among 796,865 attendances, 23,049 (2.9%) involved non-traumatic patients with hypotension. In total 7,388 (32.1%) of the hypotensive cases resulted in persistent hypotension, of which 3,235 (43.8%) received Hartmann's solution and 1,745 (53.9%) received at least 500 ml of fluids but still had hypotension. The model showed that systolic blood pressure tends to stop increasing after 500-600 milliliters of fluid are given. This suggests that, on average, giving more fluid than this may not raise blood pressure further in a prehospital setting, though individual patient needs can differ. The top four factors from the machine learning shows that as initial respiratory rate goes up, the probability of intravascular access rises. Transport times less than 20 min are associated with a smaller chance of access and younger patients are less likely to receive an attempt. Finally, extremes of systolic blood pressure are more likely to receive access attempts. CONCLUSION This study found that three percent of non-traumatic attendances have at least one episode of hypotension, and that more than half of these have persistent hypotension. Only 44% of persistently hypotensive received fluids, and half of persistently hypotensive patients stayed hypotensive despite a reasonable volume of prehospital crystalloids.
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Affiliation(s)
| | - Martin Nichols
- Clinical Systems, New South Wales Ambulance, Rozelle, Sydney, Australia
| | - Justin Scott
- Clinical Systems, New South Wales Ambulance, Rozelle, Sydney, Australia
| | - Jack Richardson
- School of Paramedicine, University of Tasmania, Rozelle, Sydney, Australia
| | - Jason Bendall
- Clinical Systems, New South Wales Ambulance, Rozelle, Sydney, Australia
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Douglas IS, Elwan MH, Najarro M, Romagnoli S. Dynamic monitoring tools for patients admitted to the emergency department with circulatory failure: narrative review with panel-based recommendations. Eur J Emerg Med 2024; 31:98-107. [PMID: 38364037 PMCID: PMC11232941 DOI: 10.1097/mej.0000000000001103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 10/24/2023] [Indexed: 02/18/2024]
Abstract
Intravenous fluid therapy is commonly administered in the emergency department (ED). Despite the deleterious potential of over- and under-resuscitation, professional society guidelines continue to recommend administering a fixed volume of fluid in initial resuscitation. Predicting whether a specific patient will respond to fluid therapy remains one of the most important, but challenging questions that ED clinicians face in clinical practice. Surrogate parameters (i.e. blood pressure and heart rate), are widely used in usual care to estimate changes in stroke volume (SV). Due to their inadequacy in estimating SV, noninvasive techniques (e.g. bioreactance, echocardiography, noninvasive finger cuff technology), have been proposed as a more accurate and readily deployable method for assessing flow and preload responsiveness. Dynamic monitoring systems based on cardiac preload challenge and assessment of SV, by using noninvasive and continuous methods, provide more accurate, feasible, efficient, and reasonably accurate strategy for prediction of fluid responsiveness than static measurements. In this article, we aimed to analyze the different methods currently available for dynamic monitoring of preload responsiveness.
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Affiliation(s)
- Ivor S. Douglas
- Denver Health Medical Center, University of Colorado School of Medicine, Denver Colorado, USA
| | - Mohammed H. Elwan
- Emergency Department, Kettering General Hospital, Kettering, UK
- Department of Cardiovascular Sciences, University of Leicester, Leicester, UK
- Department of Emergency Medicine, Alexandria University, Alexandria, Egypt
| | - Marta Najarro
- Emergency Department, Ramón y Cajal University Hospital, Madrid, Spain
| | - Stefano Romagnoli
- Health Science Department, Section of Anesthesia and Critical Care, University of Florence, Florence, Italy
- Department of Anesthesia and Critical Care, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
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Théry G, Gascon V, Fraile V, Ochagavia A, Hamzaoui O. How to use echocardiography to manage patients with shock? Med Intensiva 2024; 48:220-230. [PMID: 38151372 DOI: 10.1016/j.medine.2023.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 10/23/2023] [Indexed: 12/29/2023]
Abstract
Echocardiography enables the intensivist to assess the patient with circulatory failure. It allows the clinician to identify rapidly the type and the cause of shock in order to develop an effective management strategy. Important characteristics in the setting of shock are that it is non-invasive and can be rapidly applied. Early and repeated echocardiography is a valuable tool for the management of shock in the intensive care unit. Competency in basic critical care echocardiography is now regarded as a mandatory part of critical care training with clear guidelines available. The majority of pathologies found in shocked patients are readily identified using basic level 2D and M-mode echocardiography. The four core types of shock (cardiogenic, hypovolemic, obstructive, and septic) can readily be identified by echocardiography. Echocardiography can differentiate the different pathologies that may be the cause of each type of shock. More importantly, as a result of more complex and elderly patients, the shock may be multifactorial, such as a combination of cardiogenic and septic shock, which emphasises on the added value of transthoracic echocardiography (TTE) in such population of patients. In this review we aimed to provide to clinicians a bedside strategy of the use of TTE parameters to manage patients with shock. In the first part of this overview, we detailed the different TTE parameters and how to use them to identify the type of shock. And in the second part, we focused on the use of these parameters to evaluate the effect of treatments, in different types of shock.
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Affiliation(s)
- Guillaume Théry
- Service de Médecine Intensive - Réanimation Polyvalente, Hôpital Robert Debré, Centre Hospitalo-Universitaire de Reims; Unité HERVI "Hémostase et Remodelage Vasculaire Post-Ischémie" - EA 3801.
| | - Victor Gascon
- Servicio de Medicina Intensiva, Hospital Universitario de la Ribera, Alcira (Valencia)
| | - Virginia Fraile
- Servicio de Medicina Intensiva, Hospital Universitario Río Hortega, Valladolid
| | - Ana Ochagavia
- Servicio de Medicina Intensiva, Hospital Universitario de Bellvitge, L'Hospitalet de Llobregat, Barcelona
| | - Olfa Hamzaoui
- Service de Médecine Intensive - Réanimation Polyvalente, Hôpital Robert Debré, Centre Hospitalo-Universitaire de Reims; Unité HERVI "Hémostase et Remodelage Vasculaire Post-Ischémie" - EA 3801
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Musolino AM, Di Sarno L, Buonsenso D, Murciano M, Chiaretti A, Boccuzzi E, Mesturino MA, Villani A. Use of POCUS for the assessment of dehydration in pediatric patients-a narrative review. Eur J Pediatr 2024; 183:1091-1105. [PMID: 38133810 DOI: 10.1007/s00431-023-05394-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 12/13/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023]
Abstract
In pediatric practice, POCUS (point-of-care ultrasound) has been mostly implemented to recognize lung conditions and pleural and pericardial effusions, but less to evaluate fluid depletion. The main aim of this review is to analyze the current literature on the assessment of dehydration in pediatric patients by using POCUS. The size of the inferior vena cava (IVC) and its change in diameter in response to respiration have been investigated as a tool to screen for hypovolemia. A dilated IVC with decreased collapsibility (< 50%) is a sign of increased right atrial pressure. On the contrary, a collapsed IVC may be indicative of hypovolemia. The IVC collapsibility index (cIVC) reflects the decrease in the diameter upon inspiration. Altogether the IVC diameter and collapsibility index can be easily determined, but their role in children has not been fully demonstrated, and an estimation of volume status solely by assessing the IVC should thus be interpreted with caution. The inferior vena cava/abdominal aorta (IVC/AO) ratio may be a suitable parameter to assess the volume status in pediatric patients even though there is a need to define age-based thresholds. A combination of vascular, lung, and cardiac POCUS could be a valuable supplementary tool in the assessment of dehydration in several clinical scenarios, enabling rapid identification of life-threatening primary etiologies and helping physicians avoid inappropriate therapeutic interventions. Conclusion: POCUS can provide important information in the assessment of intravascular fluid status in emergency scenarios, but measurements may be confounded by a number of other clinical variables. The inclusion of lung and cardiac views may assist in better understanding the patient's physiology and etiology regarding volume status. What is Known: • In pediatric practice, POCUS (point-of-care ultrasound) has been mostly implemented to recognize lung conditions (like pneumonia and bronchiolitis) and pleural and pericardial effusions, but less to evaluate fluid depletion. • The size of the IVC (inferior vena cava) and its change in diameter in response to respiration have been studied as a possible screening tool to assess the volume status, predict fluid responsiveness, and assess potential intolerance to fluid loading. What is New: • The IVC diameter and collapsibility index can be easily assessed, but their role in predicting dehydration in pediatric age has not been fully demonstrated, and an estimation of volume status only by assessing the IVC should be interpreted carefully. • The IVC /AO(inferior vena cava/abdominal aorta) ratio may be a suitable parameter to assess the volume status in pediatric patients even though there is a need to define age-based thresholds. A combination of vascular, lung, and cardiac POCUS can be a valuable supplementary tool in the assessment of intravascular volume in several clinical scenarios.
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Affiliation(s)
- Anna Maria Musolino
- Pediatric Emergency Unit, Department of Emergency and General Pediatrics, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Lorenzo Di Sarno
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Danilo Buonsenso
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.
- Centro di Salute Globale, Università Cattolica del Sacro Cuore, Roma, Italia.
| | - Manuel Murciano
- Pediatric Emergency Unit, Department of Emergency and General Pediatrics, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Antonio Chiaretti
- Department of Woman and Child Health and Public Health, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Elena Boccuzzi
- Pediatric Emergency Unit, Department of Emergency and General Pediatrics, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Maria Alessia Mesturino
- Pediatric Emergency Unit, Department of Emergency and General Pediatrics, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Alberto Villani
- Pediatric Emergency Unit, Department of Emergency and General Pediatrics, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
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Mallat J, Lemyze M, Fischer MO. Passive leg raising test induced changes in plethysmographic variability index to assess fluid responsiveness in critically ill mechanically ventilated patients with acute circulatory failure. J Crit Care 2024; 79:154449. [PMID: 37857068 DOI: 10.1016/j.jcrc.2023.154449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 08/20/2023] [Accepted: 10/12/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND Passive leg raising (PLR) reliably predicts fluid responsiveness but requires a real-time cardiac index (CI) measurement or the presence of an invasive arterial line to achieve this effect. The plethysmographic variability index (PVI), an automatic measurement of the respiratory variation of the perfusion index, is non-invasive and continuously displayed on the pulse oximeter device. We tested whether PLR-induced changes in PVI (ΔPVIPLR) could accurately predict fluid responsiveness in mechanically ventilated patients with acute circulatory failure. METHODS This was a secondary analysis of an observational prospective study. We included 29 mechanically ventilated patients with acute circulatory failure in this study. We measured PVI (Radical-7 device; Masimo Corp., Irvine, CA) and CI (Echocardiography) before and during a PLR test and before and after volume expansion of 500 mL of crystalloid solution. A volume expansion-induced increase in CI of >15% defined fluid responsiveness. To investigate whether ΔPVIPLR can predict fluid responsiveness, we determined areas under the receiver operating characteristic curves (AUROCs) and gray zones for ΔPVIPLR. RESULTS Of the 29 patients, 27 (93.1%) received norepinephrine. The median tidal volume was 7.0 [IQR: 6.6-7.6] mL/kg ideal body weight. Nineteen patients (65.5%) were classified as fluid responders (increase in CI > 15% after volume expansion). Relative ΔPVIPLR accurately predicted fluid responsiveness with an AUROC of 0.89 (95%CI: 0.72-0.98, p < 0.001). A decrease in PVI ≤ -24.1% induced by PLR detected fluid responsiveness with a sensitivity of 95% (95%CI: 74-100%) and a specificity of 80% (95%CI: 44-97%). Gray zone was acceptable, including 13.8% of patients. The correlations between the relative ΔPVIPLR and changes in CI induced by PLR and by volume expansion were significant (r = -0.58, p < 0.001, and r = -0.65, p < 0.001; respectively). CONCLUSIONS In sedated and mechanically ventilated ICU patients with acute circulatory failure, PLR-induced changes in PVI accurately predict fluid responsiveness with an acceptable gray zone. TRIAL REGISTRATION ClinicalTrials.govNCT03225378.
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Affiliation(s)
- Jihad Mallat
- Department of Critical Care Medicine, Arras Hospital, 6200 Arras, France; Critical Care Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, United Arab Emirates; Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, OH, USA; Normandy University, UNICAEN, ED 497, Caen, France.
| | - Malcolm Lemyze
- Department of Critical Care Medicine, Arras Hospital, 6200 Arras, France
| | - Marc-Olivier Fischer
- Institut Aquitain du Cœur, Clinique Saint Augustin, ELSAN, 114 Avenue d'Arès, 33 074 Bordeaux Cedex, France
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29
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Yu ZB, Cui N, Zhang N, Su D, Wu JQ, Xi XM. Prediction of fluid responsiveness for patients in shock using a ventilator disconnection test combined with the pulse contour-derived cardiac index. Technol Health Care 2024; 32:629-638. [PMID: 37522231 DOI: 10.3233/thc-220799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
BACKGROUND Finding a simple and reliable method to predict and assess fluid responsiveness has long been of clinical interest. OBJECTIVE To investigate the predictive value of a ventilator disconnection (DV) test combined with the pulse contour-derived cardiac output (PiCCO) index on fluid responsiveness for patients in shock. METHODS Thirty-two patients were chosen for the study. Patients who were in shock, received mechanical ventilation, and met the inclusion criteria were selected. Patients were divided into a fluid-responsive group (14 patients) and fluid-unresponsive group (18 patients) based on whether the increase in cardiac index (Δ CI) was > 10% or not, respectively, following the fluid challenge test. Changes in heart rate, pulse oximeter-measured oxygen saturation, mean arterial pressure (MAP), and CI before and after passive leg raising (PLR), DV, and fluid challenge tests were observed. We used Pearson's correlation coefficient to analyze an increase in the MAP (Δ MAP) and Δ CI before and after the PLR, DV, and fluid challenge tests; the sensitivity and specificity of the Δ MAP and Δ CI in the PLR and DV tests for predicting fluid response were also analyzed by plotting the receiver operating characteristic (ROC) curves. RESULTS CI results in the PLR and DV tests, as well as the fluid challenge test, were significantly higher in the fluid-responsive group compared with before the test (P< 0.05). The Δ CI before and after the PLR, DV, and fluid challenge tests were positively correlated among patients in the fluid-responsive group. The area under the ROC curve for the post-PLR test CI and the post-DV CI for predicting fluid responsiveness was 0.869 (95% confidence interval (CI) [0.735-1.000, P= 0.000]) and 0.937 (95% CI [0.829-1.000, P= 0.000]), respectively, in patients in the fluid-responsive group. The sensitivity and specificity of the post-DV CI for predicting fluid responsiveness in all patients was 100.0% and 88.9%, respectively, using a 5% increase as the cut-off value. CONCLUSION Application of DV, combined with PiCCO, has a high predictive value for fluid responsiveness among patients in shock.
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Affiliation(s)
- Zhan-Biao Yu
- Intensive Care Unit, Fu Xing Hospital, Capital Medical University, Beijing, China
- Intensive Care Unit, Affiliated Hospital of HeBei University, Baoding, Hebei, China
| | - Na Cui
- Intensive Care Unit, Affiliated Hospital of HeBei University, Baoding, Hebei, China
| | - Nan Zhang
- Intensive Care Unit, Affiliated Hospital of HeBei University, Baoding, Hebei, China
| | - Dan Su
- Intensive Care Unit, Affiliated Hospital of HeBei University, Baoding, Hebei, China
| | - Jia-Qian Wu
- Intensive Care Unit, Affiliated Hospital of HeBei University, Baoding, Hebei, China
| | - Xiu-Ming Xi
- Intensive Care Unit, Fu Xing Hospital, Capital Medical University, Beijing, China
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Kenny JES, Prager R, Rola P, McCulloch G, Atwi S, Munding CE, Eibl JK, Haycock K. Inferior Vena Caval Measures Do Not Correlate with Carotid Artery Corrected Flow Time Change Measured Using a Wireless Doppler Patch in Healthy Volunteers. Diagnostics (Basel) 2023; 13:3591. [PMID: 38066832 PMCID: PMC10706625 DOI: 10.3390/diagnostics13233591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 10/16/2024] Open
Abstract
(1) Background: The inspiratory collapse of the inferior vena cava (IVC), a non-invasive surrogate for right atrial pressure, is often used to predict whether a patient will augment stroke volume (SV) in response to a preload challenge. There is a correlation between changing stroke volume (SV∆) and corrected flow time of the common carotid artery (ccFT∆). (2) Objective: We studied the relationship between IVC collapsibility and ccFT∆ in healthy volunteers during preload challenges. (3) Methods: A prospective, observational, pilot study in euvolemic, healthy volunteers with no cardiovascular history was undertaken in a local physiology lab. Using a tilt-table, we studied two degrees of preload augmentation from (a) supine to 30-degrees head-down and (b) fully-upright to 30-degrees head down. In the supine position, % of IVC collapse with respiration, sphericity index and portal vein pulsatility was calculated. The common carotid artery Doppler pulse was continuously captured using a wireless, wearable ultrasound system. (4) Results: Fourteen subjects were included. IVC % collapse with respiration ranged between 10% and 84% across all subjects. Preload responsiveness was defined as an increase in ccFT∆ of at least 7 milliseconds. A total of 79% (supine baseline) and 100% (head-up baseline) of subjects were preload-responsive. No supine venous measures (including IVC % collapse) were significantly related to ccFT∆. (5) Conclusions: From head-up baseline, 100% of healthy subjects were 'preload-responsive' as per the ccFT∆. Based on the 42% and 25% IVC collapse thresholds in the supine position, only 50% and 71% would have been labeled 'preload-responsive'.
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Affiliation(s)
- Jon-Emile S. Kenny
- Health Sciences North Research Institute, Sudbury, ON P3E 2H3, Canada
- Flosonics Medical, Toronto, ON P3E 2H2, Canada
| | - Ross Prager
- Division of Critical Care Medicine, Western University, London, ON N6A 3K7, Canada
| | - Philippe Rola
- Intensive Care Unit, Santa Cabrini Hospital, Montreal, QC H1T 1P7, Canada
| | | | - Sarah Atwi
- Flosonics Medical, Toronto, ON P3E 2H2, Canada
| | | | - Joseph K. Eibl
- Health Sciences North Research Institute, Sudbury, ON P3E 2H3, Canada
- Flosonics Medical, Toronto, ON P3E 2H2, Canada
- Northern Ontario School of Medicine, Sudbury, ON P3E 2C6, Canada
| | - Korbin Haycock
- Department of Emergency Medicine, Riverside University Health System Medical Center, Moreno Valley, CA 92555, USA
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31
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Kenny JÉS, Prager R, Rola P, Haycock K, Basmaji J, Hernández G. Unifying Fluid Responsiveness and Tolerance With Physiology: A Dynamic Interpretation of the Diamond-Forrester Classification. Crit Care Explor 2023; 5:e1022. [PMID: 38094087 PMCID: PMC10718393 DOI: 10.1097/cce.0000000000001022] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2025] Open
Abstract
Point of care ultrasound (POCUS) is a first-line tool to assess hemodynamically unstable patients, however, there is confusion surrounding intertwined concepts such as: "flow," "congestion," "fluid responsiveness (FR)," and "fluid tolerance." We argue that the Frank-Starling relationship is clarifying because it describes the interplay between "congestion" and "flow" on the x-axis and y-axis, respectively. Nevertheless, a single, simultaneous assessment of congestion and flow via POCUS remains a static approach. To expand this, we propose a two-step process. The first step is to place the patient on an ultrasonographic Diamond-Forrester plot. The second step is a dynamic assessment for FR (e.g., passive leg raise), which individualizes therapy across the arc of critical illness.
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Affiliation(s)
- Jon-Émile S Kenny
- Emerging Areas of Clinical Research, Health Sciences North Research Institute, Sudbury, ON, Canada
- Flosonics Medical, Toronto, ON, Canada
| | - Ross Prager
- Division of Critical Care Medicine, Western University, London, ON, Canada
| | - Philippe Rola
- Division of Intensive Care, Santa Cabrini Hospital, Montreal, QC, Canada
| | - Korbin Haycock
- Department of Emergency Medicine, Riverside University Health System Medical Center, Moreno Valley, CA
| | - John Basmaji
- Division of Critical Care Medicine, Western University, London, ON, Canada
| | - Glenn Hernández
- Departamento de Medicina Intensiva, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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Marklin GF, Stephens M, Gansner E, Ewald G, Klinkenberg WD, Ahrens T. Clinical outcomes of a prospective randomized comparison of bioreactance monitoring versus pulse-contour analysis in a stroke-volume based goal-directed fluid resuscitation protocol in brain-dead organ donors. Clin Transplant 2023; 37:e15110. [PMID: 37615632 DOI: 10.1111/ctr.15110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 06/27/2023] [Accepted: 08/16/2023] [Indexed: 08/25/2023]
Abstract
Eighty percent of brain-dead (BD) organ donors develop hypotension and are frequently hypovolemic. Fluid resuscitation in a BD donor is controversial. We have previously published our 4-h goal-directed stroke volume (SV)-based fluid resuscitation protocol which significantly decreased time on vasopressors and increased transplanting four or more organs. The SV was measured by pulse-contour analysis (PCA) or an esophageal doppler monitor, both of which are invasive. Thoracic bioreactance (BR) is a non-invasive portable technology that measures SV but has not been studied in BD donors. We performed a randomized prospective comparative study of BR versus PCA technology in our fluid resuscitation protocol in BD donors. Eighty-four donors (53.1%) were randomized to BR and 74 donors to PCA (46.8%). The two groups were well matched based on 24 demographic, social, and initial laboratory factors, without any significant differences between them. There was no difference in the intravenous fluid infused over the 4-h study period [BR 2271 ± 823 vs. PCA 2230 ± 962 mL; p = .77]. There was no difference in the time to wean off vasopressors [BR 108.8 ± 61.8 vs. PCA 150.0 ± 68 min p = .07], nor in the number of donors off vasopressors at the end of the protocol [BR 16 (28.6%) vs. PCA 15 (29.4%); p = .92]. There was no difference in the total number of organs transplanted per donor [BR 3.25 ± 1.77 vs. PCA 3.22 ± 1.75; p = .90], nor in any individual organ transplanted. BR was equivalent to PCA in clinical outcomes and provides a simple, non-invasive, portable technology to monitor fluid resuscitation in organ donors.
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Affiliation(s)
| | | | | | - Gregory Ewald
- Department of Medicine, Washington University School of Medicine, St Louis, Missouri, USA
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Horejsek J, Balík M, Kunstýř J, Michálek P, Kopecký P, Brožek T, Bartošová T, Fink A, Waldauf P, Porizka M. Internal jugular vein collapsibility does not predict fluid responsiveness in spontaneously breathing patients after cardiac surgery. J Clin Monit Comput 2023; 37:1563-1571. [PMID: 37572237 DOI: 10.1007/s10877-023-01066-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 07/30/2023] [Indexed: 08/14/2023]
Abstract
PURPOSE The objective of our study was to evaluate the diagnostic accuracy of internal jugular vein (IJV) collapsibility as a predictor of fluid responsiveness in spontaneously breathing patients after cardiac surgery. METHODS In this prospective observational study, spontaneously breathing patients were enrolled on the first postoperative day after coronary artery bypass grafting. Hemodynamic data coupled with simultaneous ultrasound assessment of the IJV were collected at baseline and after passive leg raising test (PLR). Continuous cardiac index (CI), stroke volume (SV), and stroke volume variation (SVV) were assessed with FloTracTM/EV1000™. Fluid responsiveness was defined as an increase in CI ≥ 10% after PLR. We compared the differences in measured variables between fluid responders and non-responders and tested the ability of ultrasonographic IJV indices to predict fluid responsiveness. RESULTS Fifty-four patients were included in the study. Seventeen (31.5%) were fluid responders. The responders demonstrated significantly lower inspiratory and expiratory diameters of the IJV at baseline, but IJV collapsibility was comparable (P = 0.7). Using the cut-off point of 20%, IJV collapsibility predicted fluid responsiveness with a sensitivity of 76.5% and specificity of 38.9%, ROC AUC 0.55. CONCLUSION In spontaneously breathing patients after surgical coronary revascularisation, collapsibility of the internal jugular vein did not predict fluid responsiveness.
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Affiliation(s)
- Jan Horejsek
- Department of Anaesthesiology and Intensive Care Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, 12808, Czech Republic
| | - Martin Balík
- Department of Anaesthesiology and Intensive Care Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, 12808, Czech Republic
| | - Jan Kunstýř
- Department of Anaesthesiology and Intensive Care Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, 12808, Czech Republic
| | - Pavel Michálek
- Department of Anaesthesiology and Intensive Care Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, 12808, Czech Republic
- Department of Anaesthesia, Antrim Area Hospital, Antrim, BT41 2RL, UK
| | - Petr Kopecký
- Department of Anaesthesiology and Intensive Care Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, 12808, Czech Republic
| | - Tomáš Brožek
- Department of Anaesthesiology and Intensive Care Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, 12808, Czech Republic
| | - Tereza Bartošová
- Department of Anaesthesiology and Intensive Care Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, 12808, Czech Republic
| | - Adam Fink
- First Faculty of Medicine, Charles University in Prague, Prague, 12808, Czechia
| | - Petr Waldauf
- Department of Anaesthesiology and Resuscitation, Third Faculty of Medicine, Charles University in Prague and University Hospital Královské Vinohrady in Prague, Prague, 10034, Czechia
| | - Michal Porizka
- Department of Anaesthesiology and Intensive Care Medicine, First Faculty of Medicine, Charles University in Prague and General University Hospital in Prague, Prague, 12808, Czech Republic.
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Zitzmann A, Bandorf T, Merz J, Müller-Graf F, Prütz M, Frenkel P, Reuter S, Vollmar B, Fuentes NA, Böhm SH, Reuter DA. Pressure- vs. volume-controlled ventilation and their respective impact on dynamic parameters of fluid responsiveness: a cross-over animal study. BMC Anesthesiol 2023; 23:320. [PMID: 37726649 PMCID: PMC10507836 DOI: 10.1186/s12871-023-02273-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 09/08/2023] [Indexed: 09/21/2023] Open
Abstract
BACKGROUND AND GOAL OF STUDY Pulse pressure variation (PPV) and stroke volume variation (SVV), which are based on the forces caused by controlled mechanical ventilation, are commonly used to predict fluid responsiveness. When PPV and SVV were introduced into clinical practice, volume-controlled ventilation (VCV) with tidal volumes (VT) ≥ 10 ml kg- 1 was most commonly used. Nowadays, lower VT and the use of pressure-controlled ventilation (PCV) has widely become the preferred type of ventilation. Due to their specific flow characteristics, VCV and PCV result in different airway pressures at comparable tidal volumes. We hypothesised that higher inspiratory pressures would result in higher PPVs and aimed to determine the impact of VCV and PCV on PPV and SVV. METHODS In this self-controlled animal study, sixteen anaesthetised, paralysed, and mechanically ventilated (goal: VT 8 ml kg- 1) pigs were instrumented with catheters for continuous arterial blood pressure measurement and transpulmonary thermodilution. At four different intravascular fluid states (IVFS; baseline, hypovolaemia, resuscitation I and II), ventilatory and hemodynamic data including PPV and SVV were assessed during VCV and PCV. Statistical analysis was performed using U-test and RM ANOVA on ranks as well as descriptive LDA and GEE analysis. RESULTS Complete data sets were available of eight pigs. VT and respiratory rates were similar in both forms. Heart rate, central venous, systolic, diastolic, and mean arterial pressures were not different between VCV and PCV at any IVFS. Peak inspiratory pressure was significantly higher in VCV, while plateau, airway and transpulmonary driving pressures were significantly higher in PCV. However, these higher pressures did not result in different PPVs nor SVVs at any IVFS. CONCLUSION VCV and PCV at similar tidal volumes and respiratory rates produced PPVs and SVVs without clinically meaningful differences in this experimental setting. Further research is needed to transfer these results to humans.
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Affiliation(s)
- Amelie Zitzmann
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Medical Centre of Rostock, Schillingallee 35, 18057, Rostock, Germany.
| | - Tim Bandorf
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Medical Centre of Rostock, Schillingallee 35, 18057, Rostock, Germany
| | - Jonas Merz
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Medical Centre of Rostock, Schillingallee 35, 18057, Rostock, Germany
| | - Fabian Müller-Graf
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Medical Centre of Rostock, Schillingallee 35, 18057, Rostock, Germany
| | - Maria Prütz
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Medical Centre of Rostock, Schillingallee 35, 18057, Rostock, Germany
| | - Paul Frenkel
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Medical Centre of Rostock, Schillingallee 35, 18057, Rostock, Germany
| | - Susanne Reuter
- Rudolf-Zenker Institute for Experimental Surgery, University Medical Centre of Rostock, Rostock, Germany
| | - Brigitte Vollmar
- Rudolf-Zenker Institute for Experimental Surgery, University Medical Centre of Rostock, Rostock, Germany
| | - Nora A Fuentes
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Medical Centre of Rostock, Schillingallee 35, 18057, Rostock, Germany
- Department of Research, Hospital Privado de Comunidad, Mar del Plata, Argentina
| | - Stephan H Böhm
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Medical Centre of Rostock, Schillingallee 35, 18057, Rostock, Germany
| | - Daniel A Reuter
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Medical Centre of Rostock, Schillingallee 35, 18057, Rostock, Germany
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Nguyen NTQ, Doan TNM, Sato K, Tkaczyk C, Sellman BR, Diep BA. Monoclonal antibodies neutralizing alpha-hemolysin, bicomponent leukocidins, and clumping factor A protected against Staphylococcus aureus-induced acute circulatory failure in a mechanically ventilated rabbit model of hyperdynamic septic shock. Front Immunol 2023; 14:1260627. [PMID: 37781371 PMCID: PMC10541218 DOI: 10.3389/fimmu.2023.1260627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 08/22/2023] [Indexed: 10/03/2023] Open
Abstract
Background Patients with septic shock caused by Staphylococcus aureus have mortality rates exceeding 50%, despite appropriate antibiotic therapy. Our objectives were to establish a rabbit model of S. aureus septic shock and to determine whether a novel immunotherapy can prevent or halt its natural disease progression. Methods Anesthetized rabbits were ventilated with lung-protective low-tidal volume, instrumented for advanced hemodynamic monitoring, and characterized for longitudinal changes in acute myocardial dysfunction by echocardiography and sepsis-associated biomarkers after S. aureus intravenous challenge. To demonstrate the potential utility of this hyperdynamic septic shock model for preclinical drug development, rabbits were randomized for prophylaxis with anti-Hla/Luk/ClfA monoclonal antibody combination that neutralizes alpha-hemolysin (Hla), the bicomponent pore-forming leukocidins (Luk) including Panton-Valentine leukocidin, leukocidin ED, and gamma-hemolysin, and clumping factor A (ClfA), or an irrelevant isotype-matched control IgG (c-IgG), and then challenged with S. aureus. Results Rabbits challenged with S. aureus, but not those with saline, developed a hyperdynamic state of septic shock characterized by elevated cardiac output (CO), increased stroke volume (SV) and reduced systemic vascular resistance (SVR), which was followed by a lethal hypodynamic state characterized by rapid decline in mean arterial pressure (MAP), increased central venous pressure, reduced CO, reduced SV, elevated SVR, and reduced left-ventricular ejection fraction, thereby reproducing the hallmark clinical features of human staphylococcal septic shock. In this model, rabbits pretreated with anti-Hla/Luk/ClfA mAb combination had 69% reduction in mortality when compared to those pretreated with c-IgG (P<0.001). USA300-induced acute circulatory failure-defined as >70% decreased in MAP from pre-infection baseline-occurred in only 20% (2/10) of rabbits pretreated with anti-Hla/Luk/ClfA mAb combination compared to 100% (9/9) of those pretreated with c-IgG. Prophylaxis with anti-Hla/Luk/ClfA mAb combination halted progression to lethal hypodynamic shock, as evidenced by significant protection against the development of hyperlactatemia, hypocapnia, hyperkalemia, leukopenia, neutropenia, monocytopenia, lymphopenia, as well as biomarkers associated with acute myocardial injury. Conclusion These results demonstrate the potential utility of a mechanically ventilated rabbit model that reproduced hallmark clinical features of hyperdynamic septic shock and the translational potential of immunotherapy targeting S. aureus virulence factors for the prevention of staphylococcal septic shock.
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Affiliation(s)
- Nhu T. Q. Nguyen
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Thien N. M. Doan
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Kei Sato
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA, United States
| | - Christine Tkaczyk
- Early Vaccines and Immune Therapies, AstraZeneca, Gaithersburg, MD, United States
| | - Bret R. Sellman
- Early Vaccines and Immune Therapies, AstraZeneca, Gaithersburg, MD, United States
| | - Binh An Diep
- Division of HIV, Infectious Diseases, and Global Medicine, Department of Medicine, University of California, San Francisco, San Francisco, CA, United States
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Shahnoor H, Divi R, Addi Palle LR, Sharma A, Contractor B, Krupanagaram S, Batool S, Ali N. The Effects of Restrictive Fluid Resuscitation on the Clinical Outcomes in Patients with Sepsis or Septic Shock: A Meta-Analysis of Randomized-Controlled Trials. Cureus 2023; 15:e45620. [PMID: 37868575 PMCID: PMC10588294 DOI: 10.7759/cureus.45620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2023] [Indexed: 10/24/2023] Open
Abstract
This study aims to assess the impact of a restrictive resuscitation strategy on the outcomes of patients with sepsis and septic shock. This meta-analysis was conducted in accordance with the recommendations from the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols (PRISMA-P) guidelines. A systematic search was performed in databases, including PubMed, Web of Science, EMBASE, and the Cochrane Library, covering the period from the inception of the database to August 2023, with no limitations on the language of publication. Outcomes assessed in the meta-analysis included mortality, duration of intensive care unit (ICU) stay in days, duration of mechanical ventilation in days, acute kidney injury (AKI) or the need for renal replacement therapy (RRT), and length of hospital stay in days. Overall, 12 studies met the inclusion criteria and were included in the present meta-analysis. The findings of this study indicate that although the risk of mortality was lower in fluid restriction compared to the control group, the difference was statistically insignificant (risk ratio (RR): 0.98; 95% confidence interval (CI): 0.9-1.05; P value: 0.61). Additionally, the duration of mechanical ventilation was significantly shorter in the restrictive fluid group compared to its counterparts (mean difference (MD): -1.02; 95% CI: -1.65 to -0.38; P value: 0.003). There were no significant differences found in relation to the duration of ICU stays, the incidence of AKI, the requirement for RRT, or the length of hospital stays measured in days.
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Affiliation(s)
- Husna Shahnoor
- Internal Medicine, Deccan College of Medical Sciences, Hyderabad, IND
| | - Rachana Divi
- Medicine and Surgery, GSL Medical College, Hyderabad, IND
| | | | - Ashutosh Sharma
- Medicine, Kathmandu Medical College and Teaching Hospital, Kathmandu, NPL
| | - Bianca Contractor
- Internal Medicine, Smt. NHL Municipal Medical College, Ahmedabad, IND
| | | | - Saima Batool
- Internal Medicine, Hameed Latif Hospital, Lahore, PAK
| | - Neelum Ali
- Internal Medicine, University of Health Sciences, Lahore, PAK
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Chen H, Liang M, He Y, Teboul JL, Sun Q, Xie J, Yang Y, Qiu H, Liu L. Inspiratory effort impacts the accuracy of pulse pressure variations for fluid responsiveness prediction in mechanically ventilated patients with spontaneous breathing activity: a prospective cohort study. Ann Intensive Care 2023; 13:72. [PMID: 37592166 PMCID: PMC10435426 DOI: 10.1186/s13613-023-01167-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 08/01/2023] [Indexed: 08/19/2023] Open
Abstract
BACKGROUND Pulse pressure variation (PPV) is unreliable in predicting fluid responsiveness (FR) in patients receiving mechanical ventilation with spontaneous breathing activity. Whether PPV can be valuable for predicting FR in patients with low inspiratory effort is unknown. We aimed to investigate whether PPV can be valuable in patients with low inspiratory effort. METHODS This prospective study was conducted in an intensive care unit at a university hospital and included acute circulatory failure patients receiving volume-controlled ventilation with spontaneous breathing activity. Hemodynamic measurements were collected before and after a fluid challenge. The degree of inspiratory effort was assessed using airway occlusion pressure (P0.1) and airway pressure swing during a whole breath occlusion (ΔPocc) before fluid challenge. Patients were classified as fluid responders if their cardiac output increased by ≥ 10%. Areas under receiver operating characteristic (AUROC) curves and gray zone approach were used to assess the predictive performance of PPV. RESULTS Among the 189 included patients, 53 (28.0%) were defined as responders. A PPV > 9.5% enabled to predict FR with an AUROC of 0.79 (0.67-0.83) in the whole population. The predictive performance of PPV differed significantly in groups stratified by the median value of P0.1 (P0.1 < 1.5 cmH2O and P0.1 ≥ 1.5 cmH2O), but not in groups stratified by the median value of ΔPocc (ΔPocc < - 9.8 cmH2O and ΔPocc ≥ - 9.8 cmH2O). Specifically, in patients with P0.1 < 1.5 cmH2O, PPV was associated with an AUROC of 0.90 (0.82-0.99) compared with 0.68 (0.57-0.79) otherwise (p = 0.0016). The cut-off values of PPV were 10.5% and 9.5%, respectively. Besides, patients with P0.1 < 1.5 cmH2O had a narrow gray zone (10.5-11.5%) compared to patients with P0.1 ≥ 1.5 cmH2O (8.5-16.5%). CONCLUSIONS PPV is reliable in predicting FR in patients who received controlled ventilation with low spontaneous effort, defined as P0.1 < 1.5 cmH2O. Trial registration NCT04802668. Registered 6 February 2021, https://clinicaltrials.gov/ct2/show/record/NCT04802668.
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Affiliation(s)
- Hui Chen
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, No. 87, Dingjiaqiao Road, Gulou District, Nanjing, 210009 People’s Republic of China
- Department of Critical Care Medicine, The First Affiliated Hospital of Soochow University, Soochow University, No. 899 Pinghai Road, Suzhou, 215000 People’s Republic of China
| | - Meihao Liang
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, No. 87, Dingjiaqiao Road, Gulou District, Nanjing, 210009 People’s Republic of China
- Department of Critical Care Medicine, Changsha central hospital, University of South China, No. 161, South Shaoshan Road, Changsha, 410000 Hunan People’s Republic of China
| | - Yuanchao He
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, No. 87, Dingjiaqiao Road, Gulou District, Nanjing, 210009 People’s Republic of China
- Department of Critical Care Medicine, Wuhan first hospital of Hubei Province, No 215 Zhongshan Avenue, Qiaokou District, Wuhan, 430000 People’s Republic of China
| | - Jean-Louis Teboul
- Service de médecine intensive-réanimation, Hôpital de Bicêtre, Université Paris-Saclay, AP-HP, Inserm UMR S_999, Le Kremlin-Bicêtre, France
| | - Qin Sun
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, No. 87, Dingjiaqiao Road, Gulou District, Nanjing, 210009 People’s Republic of China
| | - Jianfen Xie
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, No. 87, Dingjiaqiao Road, Gulou District, Nanjing, 210009 People’s Republic of China
| | - Yi Yang
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, No. 87, Dingjiaqiao Road, Gulou District, Nanjing, 210009 People’s Republic of China
| | - Haibo Qiu
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, No. 87, Dingjiaqiao Road, Gulou District, Nanjing, 210009 People’s Republic of China
| | - Ling Liu
- Jiangsu Provincial Key Laboratory of Critical Care Medicine, Department of Critical Care Medicine, Zhongda Hospital, School of Medicine, Southeast University, No. 87, Dingjiaqiao Road, Gulou District, Nanjing, 210009 People’s Republic of China
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Mahrose R, Kasem AA. Pulse Pressure Variation-Based Intraoperative Fluid Management Versus Traditional Fluid Management for Colon Cancer Patients Undergoing Open Mass Resection and Anastomosis: A Randomized Controlled Trial. Anesth Pain Med 2023; 13:e135659. [PMID: 38024002 PMCID: PMC10676660 DOI: 10.5812/aapm-135659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 06/14/2023] [Accepted: 06/27/2023] [Indexed: 12/01/2023] Open
Abstract
Background Bowel edema leads to decreased perfusion and oxygenation of the intestine at the anastomotic site after colonic mass resection with failure of healing and leakage. Additionally, dehydration causes bowel hypoperfusion and difficulty healing with more complications. Fluid therapy guided by dynamic monitoring of fluid response can help avoid bowel dehydration and edema with fewer complications. Objectives The main goal of this study was to compare the effects of intraoperative fluid therapy based on pulse pressure variation (PPV) to traditional fluid therapy to maintain adequate hydration without intraoperative instability of hemodynamics and postoperative complications. Methods This randomized controlled study was conducted on 90 adult patients (age range: 18-70 years) undergoing elective open colonic mass resection and anastomosis at Eldemerdash Hospital, Ain Shams University, Cairo, Egypt. There were two groups of patients, namely group A (n = 45; conventional fluid management [CFM] group) and group B (n = 45; goal-guided fluid management [GGFM] group based on PPV), using randomly generated data from a computer. Intraoperative fluids and vasopressors were given using GGFM or routine care. The key tool for directing hemodynamic management in the GGFM algorithm was the fluid protocol and PPV. As a result, the outcomes were measured to include the volume of intraoperative fluid, water fraction, and postoperative complications. Results In this study, 90 patients underwent analysis. Both groups' demographics were similar (P > 0.05). Baseline characteristics and surgical procedures did not differ significantly between the two groups (P > 0.05). Both the amount of urine output and the intraoperative administration of crystalloids were statistically significantly higher in group A (P < 0.05). The two groups' heart rate, mean arterial pressure and intraoperative usage of colloids and ephedrine were not statistically different (P > 0.05). Water fraction, bowel recovery, anastomotic leak, and length of hospital stay were significantly higher in the CFM group (P < 0.05). Conclusions For patients with the American Society of Anesthesiologists physical status I - II undergoing elective open resection of colonic mass and anastomosis, PPV-based GGFM, a less invasive tool for intraoperative fluid management, might be a better option than CFM.
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Affiliation(s)
- Ramy Mahrose
- Anesthesia, Intensive Care and Pain Management, Ain Shams University, Cairo, Egypt
| | - Amr A. Kasem
- Anesthesia, Intensive Care and Pain Management, Ain Shams University, Cairo, Egypt
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Bourel C, Durand A, Ter Schiphorst B, Martin C, Onimus T, De Jonckheere J, Howsam M, Pierre A, Favory R, Preau S. RESPIRATION-RELATED VARIATIONS IN CENTRAL VENOUS PRESSURE AS PREDICTORS OF FLUID RESPONSIVENESS IN SPONTANEOUSLY BREATHING PATIENTS. Shock 2023; 60:190-198. [PMID: 37548683 DOI: 10.1097/shk.0000000000002164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
ABSTRACT Objective : The hemodynamic parameters used to accurately predict fluid responsiveness (FR) in spontaneously breathing patients (SB) require specific material and expertise. Measurements of the central venous pressure (CVP) are relatively simple and, importantly, are feasible in many critically ill patients. We analyzed the accuracy of respiration-related variations in CVP (vCVP) to predict FR in SB patients and examined the optimization of its measurement using a standardized, deep inspiratory maneuver. Patients and Methods : We performed a monocentric, prospective, diagnostic evaluation. Spontaneously breathing patients in intensive care units with a central venous catheter were prospectively included. The vCVP was measured while the patient was spontaneously breathing, both with (vCVP-st) and without (vCVP-ns) a standardized inspiratory maneuver, and calculated as: Minimum inspiratory v-wave peak pressure - Maximum expiratory v-wave peak pressure. A passive leg raising-induced increase in the left ventricular outflow tract velocity-time integral ≥10% defined FR. Results : Among 63 patients, 38 (60.3%) presented FR. The vCVP-ns was not significantly different between responders and nonresponders (-4.9 mm Hg [-7.5 to -3.1] vs. -4.1 mm Hg [-5.4 to 2.8], respectively; P = 0.15). The vCVP-st was lower in responders than nonresponders (-9.7 mm Hg [-13.9 to -6.2] vs. -3.6 mm Hg [-10.6 to -1.6], respectively; P = 0.004). A vCVP-st < -4.7 mm Hg predicted FR with 89.5% sensitivity, a specificity of 56.0%, and an area under the receiver operating characteristic curve of 0.72 (95% CI, 0.58 to 0.86) ( P = 0.004). Conclusion : When a central venous catheter is present, elevated values for vCVP-st may be useful to identify spontaneously breathing patients unresponsive to volume expansion. Nevertheless, the necessity of performing a standardized, deep-inspiration maneuver may limit its clinical application.
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Affiliation(s)
- Claire Bourel
- Medical Intensive Care Unit, CHU Lille, Univ. Lille, Lille, France
| | - Arthur Durand
- Medical Intensive Care Unit, CHU Lille, Univ. Lille, Lille, France
| | | | - Claire Martin
- CHU Lille, Department of Biostatistics, Lille, France
| | - Thierry Onimus
- Medical Intensive Care Unit, CHU Lille, Univ. Lille, Lille, France
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Wiss AL, Doepker BA, Hoyte B, Olson LM, Disney KA, McLaughlin EM, Esguerra V, Elefritz JL. Impact of initial fluid resuscitation volume on clinical outcomes in patients with heart failure and septic shock. JOURNAL OF INTENSIVE MEDICINE 2023; 3:254-260. [PMID: 37533810 PMCID: PMC10391556 DOI: 10.1016/j.jointm.2023.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 04/13/2023] [Accepted: 05/08/2023] [Indexed: 08/04/2023]
Abstract
Background Fluid resuscitation is a key treatment for sepsis, but limited data exists in patients with existing heart failure (HF) and septic shock. The objective of this study was to determine the impact of initial fluid resuscitation volume on outcomes in HF patients with reduced or mildly reduced left ventricular ejection fraction (LVEF) with septic shock. Methods This multicenter, retrospective, cohort study included patients with known HF (LVEF ≤50%) presenting with septic shock. Patients were divided into two groups based on the volume of fluid resuscitation in the first 6 h; <30 mL/kg or ≥30 mL/kg. The primary outcome was a composite of in-hospital mortality or renal replacement therapy (RRT) within 7 days. Secondary outcomes included acute kidney injury (AKI), initiation of mechanical ventilation, and length of stay (LOS). All related data were collected and compared between the two groups. A generalized logistic mixed model was used to assess the association between fluid groups and the primary outcome while adjusting for baseline LVEF, Acute Physiology and Chronic Health Evaluation (APACHE) II score, inappropriate empiric antibiotics, and receipt of corticosteroids. Results One hundred and fifty-four patients were included (93 patients in <30 mL/kg group and 61 patients in ≥30 mL/kg group). The median weight-based volume in the first 6 h was 17.7 (12.2-23.0) mL/kg in the <30 mL/kg group vs. 40.5 (34.2-53.1) mL/kg in the ≥30 mL/kg group (P <0.01). No statistical difference was detected in the composite of in-hospital mortality or RRT between the <30 mL/kg group compared to the ≥30 mL/kg group (55.9% vs. 45.9%, P=0.25), respectively. The <30 mL/kg group had a higher incidence of AKI, mechanical ventilation, and longer hospital LOS. Conclusions In patients with known reduced or mildly reduced LVEF presenting with septic shock, no difference was detected for in-hospital mortality or RRT in patients who received ≥30 mL/kg of resuscitation fluid compared to less fluid, although this study was underpowered to detect a difference. Importantly, ≥30 mL/kg fluid did not result in a higher need for mechanical ventilation.
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Affiliation(s)
- Adam L. Wiss
- Department of Pharmacy, Ascension Saint Thomas Hospital West, Nashville, TN 37205, USA
| | - Bruce A. Doepker
- Department of Pharmacy, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Brittany Hoyte
- Department of Pharmacy, Corewell Health, Grand Rapids, MI 49503, USA
| | - Logan M. Olson
- Department of Pharmacy, Nebraska Medicine, Omaha, NE 68105, USA
| | - Kathryn A. Disney
- Department of Pharmacy, Huntsman Cancer Institute at the University of Utah, Salt Lake City, UT 84112, USA
| | - Eric M. McLaughlin
- Center for Biostatistics, The Ohio State University, Columbus, OH 43210, USA
| | - Vincent Esguerra
- Division of Pulmonary, Allergy, Critical Care, and Sleep Medicine. The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Jessica L. Elefritz
- Department of Pharmacy, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
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Ishizuka M, Su E. Critical Care Echocardiography for Fluid Responsiveness. Tex Heart Inst J 2023; 50:e238164. [PMID: 37526066 PMCID: PMC10655855 DOI: 10.14503/thij-23-8164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Affiliation(s)
- Maki Ishizuka
- Division of Pediatric Critical Care Medicine, Texas Children’s Hospital, Houston, Texas
| | - Erik Su
- Division of Pediatric Critical Care Medicine, Texas Children’s Hospital, Houston, Texas
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Pranskunas A, Gulbinaite E, Navickaite A, Pranskuniene Z. Differences in Hemodynamic Response to Passive Leg Raising Tests during the Day in Healthy Individuals: The Question of Normovolemia. Life (Basel) 2023; 13:1606. [PMID: 37511981 PMCID: PMC10381249 DOI: 10.3390/life13071606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/06/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
BACKGROUND The passive leg-raising (PLR) test was developed to predict fluid responsiveness and reduce fluid overload. However, the hemodynamic response of healthy individuals to the PLR test and how it changes during the day, between the morning and evening, after individuals have consumed food and fluids, has not been profoundly explored. This study aimed to compare the systemic hemodynamic changes in healthy individuals between morning and evening PLR tests. METHODS In this study, the PLR test was performed twice a day. The first PLR test was performed between 08h00 and 09h00 in the morning, while the second PLR test was performed between 20h00 and 21h00 in the evening. Hemodynamic parameters were measured using an impedance cardiography monitor, and a cutoff value of a 10% increase in stroke volume (SV) during the PLR test was used to differentiate between preload responders and non-responders. RESULTS We included 50 healthy volunteers in this study. When comparing the morning and evening PLR test results, we found no PLR-induced differences in heart rate (-3 [-8-2] vs. -2 [-8-4] beats/min, p = 0.870), SV (11 [5-22] vs. 12 [4-20] mL, p = 0.853) or cardiac output (0.7 [0.2-1.3] vs. 0.8 [0.1-1.4] L/min, p = 0.639). We also observed no differences in the proportion of preload responders during the PLR test between the morning and evening (64% vs. 66%, p = 0.99). However, there was a moderate agreement between the two PLR tests (morning and evening) (kappa = 0.429, p = 0.012). There was a moderate correlation between the changes in SV between the two PLR tests (rs = 0.50, p < 0.001). CONCLUSION In young, healthy individuals, we observed no change in the systemic hemodynamic responsiveness to the PLR test between the morning and evening, without restriction of fluid and food intake.
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Affiliation(s)
- Andrius Pranskunas
- Department of Intensive Care Medicine, Lithuanian University of Health Sciences, Eiveniu g. 2, 50161 Kaunas, Lithuania
| | - Egle Gulbinaite
- Faculty of Medicine, Medical Academy, Lithuanian University of Health Sciences, A. Mickeviciaus g. 9, 44307 Kaunas, Lithuania
| | - Aiste Navickaite
- Faculty of Medicine, Medical Academy, Lithuanian University of Health Sciences, A. Mickeviciaus g. 9, 44307 Kaunas, Lithuania
| | - Zivile Pranskuniene
- Institute of Pharmaceutical Technologies, Lithuanian University of Health Sciences, Sukileliu pr. 13, 50166 Kaunas, Lithuania
- Department of Drug Technology and Social Pharmacy, Lithuanian University of Health Sciences, Sukileliu pr. 13, 50166 Kaunas, Lithuania
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Muzaffar SN, Pradhan A, Siddiqui SS, Roy S, Suresh T. Monitoring Macro- and Microcirculation in the Critically Ill: A Narrative Review. Avicenna J Med 2023; 13:138-150. [PMID: 37799180 PMCID: PMC10550369 DOI: 10.1055/s-0043-1772175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023] Open
Abstract
Circulatory shock is a common and important diagnosis in the critical care environment. Hemodynamic monitoring is quintessential in the management of shock. The currently used hemodynamic monitoring devices not only measure cardiac output but also provide data related to the prediction of fluid responsiveness, extravascular lung water, and also pulmonary vascular permeability. Additionally, these devices are minimally invasive and associated with fewer complications. The area of hemodynamic monitoring is progressively evolving with a trend toward the use of minimally invasive devices in this area. The critical care physician should be well-versed with current hemodynamic monitoring limitations and stay updated with the upcoming advances in this field so that optimal therapy can be delivered to patients in circulatory shock.
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Affiliation(s)
- Syed Nabeel Muzaffar
- Department of Critical Care Medicine, King George's Medical University (KGMU), Lucknow, Uttar Pradesh, India
| | - Akshyaya Pradhan
- Department of Cardiology, King George's Medical University (KGMU), Lucknow, Uttar Pradesh, India
| | - Suhail Sarwar Siddiqui
- Department of Critical Care Medicine, King George's Medical University (KGMU), Lucknow, Uttar Pradesh, India
| | - Shubhajeet Roy
- Faculty of Medical Sciences, King George's Medical University (KGMU), Lucknow, Uttar Pradesh, India
| | - Timil Suresh
- Faculty of Medical Sciences, King George's Medical University (KGMU), Lucknow, Uttar Pradesh, India
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Sethasathien S, Jariyasakoolroj T, Silvilairat S, Srisurapanont M. Aortic Peak Flow Velocity As a Predictor of Fluid Responsiveness in Mechanically Ventilated Children: A Systematic Review and Meta-Analysis. Pediatr Crit Care Med 2023; 24:e352-e361. [PMID: 36856439 DOI: 10.1097/pcc.0000000000003219] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
OBJECTIVES This meta-analysis aimed to determine the accuracy of the respiratory variations in aortic peak flow velocity (delta Vpeak) in predicting fluid responsiveness and the moderators of that accuracy. DATA SOURCES We performed searches for studies that used delta Vpeak as a predictor of fluid responsiveness in mechanically ventilated children in PubMed, Embase, Scopus, and CINAHL from inception to June 20, 2022. STUDY SELECTION AND DATA EXTRACTION Fifteen studies ( n = 452) were included in this meta-analysis. The diagnostic test data of the included studies were synthesized as pooled sensitivity, specificity, and diagnostic odds ratio (DOR) and the area under the curve (AUC) of the summary receiver operating characteristic of delta Vpeak. DATA SYNTHESIS The delta Vpeak cutoff values applied in these studies had a median of 12.3% (interquartile range, 11.50-13.25%). The pooled sensitivity and specificity of delta Vpeak were 0.80 (95% CI, 0.71-0.87) and 0.82 (95% CI, 0.75-0.87), respectively. The DOR of delta Vpeak was 23.41 (95% CI, 11.61-47.20). The AUC of delta Vpeak was 0.87. Subgroup analyses revealed that the accuracy of delta Vpeak was not moderated by ventilator settings, measures of delta Vpeak, gold standard index, the cutoff gold standard value of responders, type and volume of fluid, duration of fluid challenge, use of vasoactive drugs, general anesthesia, and cardiopulmonary bypass. CONCLUSIONS By using the cutoff of approximately 12.3%, the delta Vpeak appears to have good accuracy in predicting fluid responsiveness in mechanically ventilated children. The moderators of delta Vpeak predictability are not found.
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Affiliation(s)
- Saviga Sethasathien
- Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Theerapon Jariyasakoolroj
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Suchaya Silvilairat
- Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Chiang Mai University, Chiang Mai, Thailand
| | - Manit Srisurapanont
- Department of Psychiatry, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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Oh AR, Lee JH. Predictors of fluid responsiveness in the operating room: a narrative review. Anesth Pain Med (Seoul) 2023; 18:233-243. [PMID: 37468195 PMCID: PMC10410540 DOI: 10.17085/apm.23072] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/21/2023] Open
Abstract
Prediction of fluid responsiveness has been considered an essential tool for modern fluid management. However, most studies in this field have focused on patients in intensive care unit despite numerous research throughout several decades. Therefore, the present narrative review aims to show the representative method's feasibility, advantages, and limitations in predicting fluid responsiveness, focusing on the operating room environments. Firstly, we described the predictors of fluid responsiveness based on heart-lung interaction, including pulse pressure and stroke volume variations, the measurement of respiratory variations of inferior vena cava diameter, and the end-expiratory occlusion test and addressed their limitations. Subsequently, the passive leg raising test and mini-fluid challenge tests were also mentioned, which assess fluid responsiveness by mimicking a classic fluid challenge. In the last part of this review, we pointed out the pitfalls of fluid management based on fluid responsiveness prediction, which emphasized the importance of individualized decision-making. Understanding the available representative methods to predict fluid responsiveness and their associated benefits and drawbacks through this review will aid anesthesiologists in choosing the most reliable methods for optimal fluid administration in each patient during anesthesia in the operating room.
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Affiliation(s)
- Ah Ran Oh
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Seoul, Korea
| | - Jong-Hwan Lee
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Seoul, Korea
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Patnaik R, Krishna B, Sampath S. Correlation of Common Carotid Artery Blood Flow Parameters With Transthoracic Echocardiographic Cardiac Output for Assessing Fluid Responsiveness After Passive Leg Raising (PLR) Test in Critically Ill Patients. Cureus 2023; 15:e40229. [PMID: 37435241 PMCID: PMC10332793 DOI: 10.7759/cureus.40229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2023] [Indexed: 07/13/2023] Open
Abstract
Introduction The passive leg raising (PLR) test is a simple, non-invasive method of knowing fluid responsiveness by acting as an internal-fluid challenge. The PLR test coupled with a non-invasive assessment of stroke volume would be the ideal method to assess fluid responsiveness. This study aimed to determine the correlation between transthoracic echocardiographic cardiac output (TTE-CO) and common carotid artery blood flow (CCABF) parameters in determining fluid responsiveness with the PLR test. Methods We performed a prospective observational study on 40 critically ill patients. Patients were evaluated with a 7-13 MHz linear transducer probe for CCABF parameters calculated using time-averaged mean velocity (TAmean) and with a 1-5 MHz cardiac probe equipped with tissue doppler imaging (TDI) for TTE-CO calculated using left ventricular outflow tract velocity time integral (LVOT VTI) with an apical five-chamber view. Two separate PLR tests (five minutes apart) were done within 48 hours of ICU admission. The first PLR test was to assess the effects on TTE-CO. The second PLR test was performed to assess the effects on CCABF parameters. Patients were designated as fluid responders (FR) if changes in TTE-CO (Δ TTE-CO) ≥ 10 %. Results A positive PLR test was observed in 33% of patients. A strong correlation was present between absolute values of TTE-CO calculated using LVOT VTI and the absolute values of CCABF calculated using TAmean (r=0.60, p<0.05). However, a weak correlation was found between Δ TTE-CO and changes in CCABF (Δ CCABF) during the PLR test (r=0.05, p<0.74). A positive PLR test response could not be detected by Δ CCABF (area under the curve (AUC): 0.59 ± 0.09). Conclusions We found a moderate correlation between TTE-CO and CCABF at baseline. However, Δ TTE-CO had a very poor correlation with Δ CCABF, during the PLR test. Considering this, CCABF parameters may not be recommended as a means to detect fluid responsiveness with PLR tests in critically ill patients.
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Affiliation(s)
- Rohit Patnaik
- Critical Care Medicine, Institute of Medical Sciences and SUM Hospital, Bhubaneswar, IND
| | - Bhuvana Krishna
- Critical Care Medicine, St. John's Medical College and Hospital, Bengaluru, IND
| | - Sriram Sampath
- Critical Care Medicine, St. John's Medical College and Hospital, Bengaluru, IND
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Moschopoulos CD, Dimopoulou D, Dimopoulou A, Dimopoulou K, Protopapas K, Zavras N, Tsiodras S, Kotanidou A, Fragkou PC. New Insights into the Fluid Management in Patients with Septic Shock. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1047. [PMID: 37374251 PMCID: PMC10301281 DOI: 10.3390/medicina59061047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/25/2023] [Accepted: 05/27/2023] [Indexed: 06/29/2023]
Abstract
The importance of fluid resuscitation therapy during the early stages of sepsis management is a well-established principle. Current Surviving Sepsis Campaign (SSC) guidelines recommend the early administration of intravenous crystalloid fluids for sepsis-related hypotension or hyperlactatemia due to tissue hypoperfusion, within the first 3 h of resuscitation and suggest using balanced solutions (BSs) instead of normal saline (NS) for the management of patients with sepsis or septic shock. Studies comparing BS versus NS administration in septic patients have demonstrated that BSs are associated with better outcomes including decreased mortality. After initial resuscitation, fluid administration has to be judicious in order to avoid fluid overload, which has been associated with increased mortality, prolonged mechanical ventilation, and worsening of acute kidney injury. The "one size fits all" approach may be "convenient" but it should be avoided. Personalized fluid management, based on patient-specific hemodynamic indices, provides the foundations for better patient outcomes in the future. Although there is a consensus on the need for adequate fluid therapy in sepsis, the type, the amount of administered fluids, and the ideal fluid resuscitation strategy remain elusive. Well-designed large randomized controlled trials are certainly needed to compare fluid choices specifically in the septic patient, as there is currently limited evidence of low quality. This review aims to summarize the physiologic principles and current scientific evidence regarding fluid management in patients with sepsis, as well as to provide a comprehensive overview of the latest data on the optimal fluid administration strategy in sepsis.
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Affiliation(s)
- Charalampos D. Moschopoulos
- Fourth Department of Internal Medicine, School of Medicine, Attikon University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (C.D.M.); (S.T.)
| | - Dimitra Dimopoulou
- Second Department of Pediatrics, “Aghia Sophia” Children’s Hospital, 11527 Athens, Greece;
| | - Anastasia Dimopoulou
- First Department of Pediatric Surgery, “Aghia Sophia” Children’s Hospital, 11527 Athens, Greece
| | | | - Konstantinos Protopapas
- Fourth Department of Internal Medicine, School of Medicine, Attikon University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (C.D.M.); (S.T.)
| | - Nikolaos Zavras
- Department of Pediatric Surgery, School of Medicine, Attikon University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece;
| | - Sotirios Tsiodras
- Fourth Department of Internal Medicine, School of Medicine, Attikon University Hospital, National and Kapodistrian University of Athens, 12462 Athens, Greece; (C.D.M.); (S.T.)
| | - Anastasia Kotanidou
- First Department of Critical Care Medicine and Pulmonary Services, School of Medicine, Evangelismos Hospital, National and Kapodistrian University of Athens, 10676 Athens, Greece
| | - Paraskevi C. Fragkou
- First Department of Critical Care Medicine and Pulmonary Services, School of Medicine, Evangelismos Hospital, National and Kapodistrian University of Athens, 10676 Athens, Greece
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Sheridan WS, Wetterling F, Testani JM, Borlaug BA, Fudim M, Damman K, Gray A, Gaines P, Poloczek M, Madden S, Tucker J, Buxo T, Gaul R, Corcoran L, Sweeney F, Burkhoff D. Safety and performance of a novel implantable sensor in the inferior vena cava under acute and chronic intravascular volume modulation. Eur J Heart Fail 2023; 25:754-763. [PMID: 36891760 DOI: 10.1002/ejhf.2822] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 02/10/2023] [Accepted: 02/27/2023] [Indexed: 03/10/2023] Open
Abstract
AIMS The management of congestion is one of the key treatment targets in heart failure. Assessing congestion is, however, difficult. The purpose of this study was to investigate the safety and dynamic response of a novel, passive, inferior vena cava (IVC) sensor in a chronic ovine model. METHODS AND RESULTS A total of 20 sheep divided into three groups were studied in acute and chronic in vivo settings. Group I and Group II included 14 sheep in total with 12 sheep receiving the sensor and two sheep receiving a control device (IVC filter). Group III included an additional six animals for studying responses to volume challenges via infusion of blood and saline solutions. Deployment was 100% successful with all devices implanted; performing as expected with no device-related complications and signals were received at all observations. At similar volume states no significant differences in IVC area normalized to absolute area range were measured (55 ± 17% on day 0 and 62 ± 12% on day 120, p = 0.51). Chronically, the sensors were completely integrated with a thin, reendothelialized neointima with no loss of sensitivity to infused volume. Normalized IVC area changed significantly from 25 ± 17% to 43 ± 11% (p = 0.007) with 300 ml infused. In contrast, right atrial pressure required 1200 ml of infused volume prior to a statistically significant change from 3.1 ± 2.6 mmHg to 7.5 ± 2.0 mmHg (p = 0.02). CONCLUSION In conclusion, IVC area can be measured remotely in real-time using a safe, accurate, wireless, and chronic implantable sensor promising to detect congestion with higher sensitivity than filling pressures.
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Affiliation(s)
| | | | - Jeffrey Moore Testani
- Section of Cardiology, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Barry A Borlaug
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Marat Fudim
- Duke Clinical Research Institute, Durham, NC, USA
- Division of Cardiology, Duke University Medical Center, Durham, NC, USA
| | - Kevin Damman
- University of Groningen, Department of Cardiology, University Medical Center Groningen, Groningen, The Netherlands
| | - Alastair Gray
- Department of Cardiology, Craigavon Area Hospital, Craigavon, UK
| | | | - Martin Poloczek
- Department of Internal Medicine and Cardiology, University Hospital Brno and Faculty of Medicine of Masaryk University, Brno, Czech Republic
| | - Stephen Madden
- Data Science Centre, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - James Tucker
- FIRE1, Foundry Innovation and Research 1 Ltd, Dublin, Ireland
| | - Teresa Buxo
- FIRE1, Foundry Innovation and Research 1 Ltd, Dublin, Ireland
| | - Robert Gaul
- FIRE1, Foundry Innovation and Research 1 Ltd, Dublin, Ireland
| | - Louise Corcoran
- FIRE1, Foundry Innovation and Research 1 Ltd, Dublin, Ireland
| | - Fiachra Sweeney
- FIRE1, Foundry Innovation and Research 1 Ltd, Dublin, Ireland
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Claudel SE, Jaganathan J, Patel A, Tapper EB, Verma A. Review article: Practical considerations for fluid resuscitation in cirrhosis. Aliment Pharmacol Ther 2023; 57:1066-1082. [PMID: 36998204 PMCID: PMC11839201 DOI: 10.1111/apt.17458] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/25/2022] [Accepted: 02/26/2023] [Indexed: 04/01/2023]
Abstract
BACKGROUND Standard clinical methods of assessing volume and providing resuscitation are not always applicable to patients with advanced or decompensated cirrhosis. Despite this being well known from a clinical perspective, there remains relatively little evidence to guide clinicians though fluid management in patients with cirrhosis and, often, multi-organ system dysfunction. AIMS This review summarises the current understanding of the circulatory dysfunction in cirrhosis, modalities for assessing volume status, and considerations for fluid selection. It additionally provides a practical approach to fluid resuscitation. METHODS We review current literature on cirrhosis pathophysiology in steady-state and shock, clinical implications of fluid resuscitation, and strategies to assess intravascular volume. Literature reviewed here was identified by the authors through PubMed search and review of selected papers' references. RESULTS Clinical management of resuscitation in advanced cirrhosis remains relatively stagnant. Although several trials have attempted to establish the superior resuscitative fluid, the lack of improvement in hard clinical outcomes leaves clinicians without clear guidance. CONCLUSIONS The absence of consistent evidence for fluid resuscitation in patients with cirrhosis limits our ability to produce a clearly evidence-based protocol for fluid resuscitation in cirrhosis. However, we propose a preliminary practical guide to managing fluid resuscitation in patients with decompensated cirrhosis. Further studies are needed to develop and validate volume assessment tools in the specific context of cirrhosis, while randomised clinical trials of protocolized resuscitation may improve care of this patient population.
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Affiliation(s)
- Sophie E. Claudel
- Department of Internal Medicine, Boston Medical Center, Boston, Massachusetts, USA
| | - Jeeva Jaganathan
- Digestive Sciences and Nutrition, University of Kentucky College of Medicine, Lexington, Kentucky, USA
| | - Ankit Patel
- Department of Medicine, Renal Division, Brigham and Women’s Hospital, Boston, Massachusetts, USA
| | - Elliot B. Tapper
- Division of Gastroenterology, University of Michigan, Ann Arbor, Michigan, USA
| | - Ashish Verma
- Department of Internal Medicine, Section on Nephrology, Boston Medical Center, Boston, Massachusetts, USA
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50
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Teboul JL. How to integrate hemodynamic variables during resuscitation of septic shock? JOURNAL OF INTENSIVE MEDICINE 2023; 3:131-137. [PMID: 37188115 PMCID: PMC10175700 DOI: 10.1016/j.jointm.2022.09.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/09/2022] [Accepted: 09/27/2022] [Indexed: 05/17/2023]
Abstract
Resuscitation of septic shock is a complex issue because the cardiovascular disturbances that characterize septic shock vary from one patient to another and can also change over time in the same patient. Therefore, different therapies (fluids, vasopressors, and inotropes) should be individually and carefully adapted to provide personalized and adequate treatment. Implementation of this scenario requires the collection and collation of all feasible information, including multiple hemodynamic variables. In this review article, we propose a logical stepwise approach to integrate relevant hemodynamic variables and provide the most appropriate treatment for septic shock.
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