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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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Baucom MR, Wallen TE, Price AD, Caskey C, Schuster RM, Smith MP, Blakeman TC, Strilka R, Goodman MD. Validation of Preload Assessment Technologies at Altitude in a Porcine Model of Hemorrhage. J Surg Res 2024; 295:631-640. [PMID: 38101109 DOI: 10.1016/j.jss.2023.07.046] [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: 02/27/2023] [Revised: 07/02/2023] [Accepted: 07/06/2023] [Indexed: 12/17/2023]
Abstract
INTRODUCTION Dynamic preload assessment measures including pulse pressure variation (PPV), stroke volume variation (SVV), pleth variability index (PVI), and hypotension prediction index (HPI) have been utilized clinically to guide fluid management decisions in critically ill patients. These values aid in the balance of correcting hypotension while avoiding over-resuscitation leading to respiratory failure and increased mortality. However, these measures have not been previously validated at altitude or in those with temporary abdominal closure (TAC). METHODS Forty-eight female swine (39 ± 2 kg) were separated into eight groups (n = 6) including all combinations of flight versus ground, hemorrhage versus no hemorrhage, and TAC versus no TAC. Flight animals underwent simulated aeromedical evacuation via an altitude chamber at 8000 ft. Hemorrhagic shock was induced via stepwise hemorrhage removing 10% blood volume in 15-min increments to a total blood loss of 40% or a mean arterial pressure of 35 mmHg. Animals were then stepwise transfused with citrated shed blood with 10% volume every 15 min back to full blood volume. PPV, SVV, PVI, and HPI were monitored every 15 min throughout the simulated aeromedical evacuation or ground control. Blood samples were collected and analyzed for serum levels of serum IL-1β, IL-6, IL-8, and TNF-α. RESULTS Hemorrhage groups demonstrated significant increases in PPV, SVV, PVI, and HPI at each step compared to nonhemorrhage groups. Flight increased PPV (P = 0.004) and SVV (P = 0.003) in hemorrhaged animals. TAC at ground level increased PPV (P < 0.0001), SVV (P = 0.0003), and PVI (P < 0.0001). When TAC was present during flight, PPV (P = 0.004), SVV (P = 0.003), and PVI (P < 0.0001) values were decreased suggesting a dependent effect between altitude and TAC. There were no significant differences in serum IL-1β, IL-6, IL-8, or TNF-α concentration between injury groups. CONCLUSIONS Based on our study, PPV and SVV are increased during flight and in the presence of TAC. Pleth variability index is slightly increased with TAC at ground level. Hypotension prediction index demonstrated no significant changes regardless of altitude or TAC status, however this measure was less reliable once the resuscitation phase was initiated. Pleth variability index may be the most useful predictor of preload during aeromedical evacuation as it is a noninvasive modality.
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Affiliation(s)
- Matthew R Baucom
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Taylor E Wallen
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Adam D Price
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | - Chelsea Caskey
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | | | - Maia P Smith
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio
| | | | - Richard Strilka
- Department of Surgery, University of Cincinnati, Cincinnati, Ohio
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Messina A, Caporale M, Calabrò L, Lionetti G, Bono D, Matronola GM, Brunati A, Frassanito L, Morenghi E, Antonelli M, Chew MS, Cecconi M. Reliability of pulse pressure and stroke volume variation in assessing fluid responsiveness in the operating room: a metanalysis and a metaregression. Crit Care 2023; 27:431. [PMID: 37940953 PMCID: PMC10631038 DOI: 10.1186/s13054-023-04706-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 10/23/2023] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND Pulse pressure and stroke volume variation (PPV and SVV) have been widely used in surgical patients as predictors of fluid challenge (FC) response. Several factors may affect the reliability of these indices in predicting fluid responsiveness, such as the position of the patient, the use of laparoscopy and the opening of the abdomen or the chest, combined FC characteristics, the tidal volume (Vt) and the type of anesthesia. METHODS Systematic review and metanalysis of PPV and SVV use in surgical adult patients. The QUADAS-2 scale was used to assess the risk of bias of included studies. We adopted a metanalysis pooling of aggregate data from 5 subgroups of studies with random effects models using the common-effect inverse variance model. The area under the curve (AUC) of pooled receiving operating characteristics (ROC) curves was reported. A metaregression was performed using FC type, volume, and rate as independent variables. RESULTS We selected 59 studies enrolling 2,947 patients, with a median of fluid responders of 55% (46-63). The pooled AUC for the PPV was 0.77 (0.73-0.80), with a mean threshold of 10.8 (10.6-11.0). The pooled AUC for the SVV was 0.76 (0.72-0.80), with a mean threshold of 12.1 (11.6-12.7); 19 studies (32.2%) reported the grey zone of PPV or SVV, with a median of 56% (40-62) and 57% (46-83) of patients included, respectively. In the different subgroups, the AUC and the best thresholds ranged from 0.69 and 0.81 and from 6.9 to 11.5% for the PPV, and from 0.73 to 0.79 and 9.9 to 10.8% for the SVV. A high Vt and the choice of colloids positively impacted on PPV performance, especially among patients with closed chest and abdomen, or in prone position. CONCLUSION The overall performance of PPV and SVV in operating room in predicting fluid responsiveness is moderate, ranging close to an AUC of 0.80 only some subgroups of surgical patients. The grey zone of these dynamic indices is wide and should be carefully considered during the assessment of fluid responsiveness. A high Vt and the choice of colloids for the FC are factors potentially influencing PPV reliability. TRIAL REGISTRATION PROSPERO (CRD42022379120), December 2022. https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=379120.
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Affiliation(s)
- Antonio Messina
- Department of Anaesthesia and Intensive Care Medicine, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano - Milan, Italy.
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy.
| | - Mariagiovanna Caporale
- Department of Anesthesia and Intensive Care, Fondazione Policlinico Universitario 'A. Gemelli' IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Lorenzo Calabrò
- Department of Anaesthesia and Intensive Care Medicine, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano - Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy
| | - Giulia Lionetti
- Department of Anaesthesia and Intensive Care Medicine, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano - Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy
| | - Daniele Bono
- Department of Anaesthesia and Intensive Care Medicine, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano - Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy
| | - Guia Margherita Matronola
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy
| | - Andrea Brunati
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy
| | - Luciano Frassanito
- Department of Anesthesia and Intensive Care, Fondazione Policlinico Universitario 'A. Gemelli' IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Emanuela Morenghi
- Department of Anaesthesia and Intensive Care Medicine, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano - Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy
| | - Massimo Antonelli
- Department of Anesthesia and Intensive Care, Fondazione Policlinico Universitario 'A. Gemelli' IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Michelle S Chew
- Department of Anaesthesia and Intensive Care, Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Maurizio Cecconi
- Department of Anaesthesia and Intensive Care Medicine, IRCCS Humanitas Research Hospital, Via Manzoni 56, 20089, Rozzano - Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, 20072, Pieve Emanuele, Milan, Italy
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Cheong I, Otero Castro V, Brizuela M, Früchtenicht MF, Merlo PM, Tamagnone FM. Passive leg raising test to predict fluid responsiveness using the right ventricle outflow tract velocity-time integral through a subcostal view. J Ultrasound 2022:10.1007/s40477-022-00719-7. [PMID: 36127570 DOI: 10.1007/s40477-022-00719-7] [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: 06/14/2022] [Accepted: 08/10/2022] [Indexed: 10/14/2022] Open
Abstract
PURPOSE The passive leg raising test (PLR) produces a reversible increase in venous return and, if the patient's ventricles are preload dependent, in the cardiac output. As this effect occurs in seconds, the transthoracic echocardiography is optimal for its real time assessment. The utility of the PLR for monitoring fluid responsiveness through the measurement of the left ventricle outflow tract velocity-time integral (LVOT VTI) in an apical 5-chamber view is well stablished. To achieve this view in critically ill patients is often challenging. The aim of this study is to explore the accuracy for predicting fluid responsiveness of the change in the right ventricle outflow tract velocity-time integral (RVOT VTI) from a subcostal view during a PLR. METHODS This is a diagnostic accuracy study carried out in two centers in Argentina. We included patients admitted to the intensive care unit from January 2022 to April 2022, that required fluid expansion due to signs of tissular hypoperfusion. We measured the RVOT VTI from a subcostal view in a semi-recumbent position and during the PLR, and the LVOT VTI in an apical 5-chamber view before and after a fluid bolus. If the LVOT VTI increased by 15% after the fluid bolus, the patients were considered fluid responders. RESULTS We included 43 patients. The area under the ROC curve for a change in the RVOT VTI during the PLR was 0.879 (95% CI 0.744-0.959). A change of 15.36% in the RVOT VTI with the PLR predicted fluid responsiveness with a sensitivity of 85.7% (95% CI 57.2%-98.2%) and specificity of 93.1% (95% CI 77.2-99.2). The positive predictive value was 85.7% (95% CI 60.8%-95.9%) and the negative predictive value was 93.1% (95% CI 78.8%-98%). The positive likelihood ratio was 12.43 and the negative predictive value was 0.15. CONCLUSION The RVOT VTI change during a PLR is suitable for the prediction of fluid responsiveness in critically ill patients.
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Affiliation(s)
- Issac Cheong
- Department of Critical Care Medicine, Sanatorio De los Arcos, Juan B. Justo 909, CABA, Buenos Aires, Argentina.
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina.
| | - Victoria Otero Castro
- Department of Critical Care Medicine, Sanatorio De los Arcos, Juan B. Justo 909, CABA, Buenos Aires, Argentina
| | - Matías Brizuela
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina
- Department of Critical Care Medicine, Sanatorio Privado del Interior SRL, Córdoba, Argentina
| | | | - Pablo Martín Merlo
- Argentinian Critical Care Ultrasonography Association (ASARUC), Buenos Aires, Argentina
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Monnet X, Shi R, Teboul JL. Prediction of fluid responsiveness. What’s new? Ann Intensive Care 2022; 12:46. [PMID: 35633423 PMCID: PMC9148319 DOI: 10.1186/s13613-022-01022-8] [Citation(s) in RCA: 71] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 05/09/2022] [Indexed: 02/07/2023] Open
Abstract
AbstractAlthough the administration of fluid is the first treatment considered in almost all cases of circulatory failure, this therapeutic option poses two essential problems: the increase in cardiac output induced by a bolus of fluid is inconstant, and the deleterious effects of fluid overload are now clearly demonstrated. This is why many tests and indices have been developed to detect preload dependence and predict fluid responsiveness. In this review, we take stock of the data published in the field over the past three years. Regarding the passive leg raising test, we detail the different stroke volume surrogates that have recently been described to measure its effects using minimally invasive and easily accessible methods. We review the limits of the test, especially in patients with intra-abdominal hypertension. Regarding the end-expiratory occlusion test, we also present recent investigations that have sought to measure its effects without an invasive measurement of cardiac output. Although the limits of interpretation of the respiratory variation of pulse pressure and of the diameter of the vena cava during mechanical ventilation are now well known, several recent studies have shown how changes in pulse pressure variation itself during other tests reflect simultaneous changes in cardiac output, allowing these tests to be carried out without its direct measurement. This is particularly the case during the tidal volume challenge, a relatively recent test whose reliability is increasingly well established. The mini-fluid challenge has the advantage of being easy to perform, but it requires direct measurement of cardiac output, like the classic fluid challenge. Initially described with echocardiography, recent studies have investigated other means of judging its effects. We highlight the problem of their precision, which is necessary to evidence small changes in cardiac output. Finally, we point out other tests that have appeared more recently, such as the Trendelenburg manoeuvre, a potentially interesting alternative for patients in the prone position.
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Huan S, Dai J, Song S, Zhu G, Ji Y, Yin G. Stroke volume variation for predicting responsiveness to fluid therapy in patients undergoing cardiac and thoracic surgery: a systematic review and meta-analysis. BMJ Open 2022; 12:e051112. [PMID: 35584881 PMCID: PMC9119189 DOI: 10.1136/bmjopen-2021-051112] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To evaluate the reliability of stroke volume variation (SVV) for predicting responsiveness to fluid therapy in patients undergoing cardiac and thoracic surgery. DESIGN Systematic review and meta-analysis. DATA SOURCES PubMed, EMBASE, Cochrane Library, Web of Science up to 9 August 2020. METHODS Quality of included studies were assessed with the Quality Assessment of Diagnostic Accuracy Studies-2 tool. We conducted subgroup analysis according to different anaesthesia and surgical methods with Stata V.14.0, Review Manager V.5.3 and R V.3.6.3. We used random-effects model to pool sensitivity, specificity and diagnostic odds ratio with 95% CI. The area under the curve (AUC) of receiver operating characteristic was calculated. RESULTS Among the 20 relevant studies, 7 were conducted during thoracic surgery, 8 were conducted during cardiac surgery and the remaining 5 were conducted in intensive critical unit (ICU) after cardiac surgery. Data from 854 patients accepting mechanical ventilation were included in our systematic review. The pooled sensitivity and specificity were 0.73 (95% CI: 0.59 to 0.83) and 0.62 (95% CI: 0.46 to 0.76) in the thoracic surgery group, 0.71 (95% CI: 0.65 to 0.77) and 0.76 (95% CI: 0.69 to 0.82) in the cardiac surgery group, 0.85 (95% CI: 0.60 to 0.96) and 0.85 (95% CI: 0.74 to 0.92) in cardiac ICU group. The AUC was 0.73 (95% CI: 0.69 to 0.77), 0.80 (95% CI: 0.77 to 0.83) and 0.88 (95% CI: 0.86 to 0.92), respectively. Results of subgroup of FloTrac/Vigileo system (AUC=0.80, Youden index=0.38) and large tidal volume (AUC=0.81, Youden index=0.48) in thoracic surgery, colloid (AUC=0.85, Youden index=0.55) and postoperation (AUC=0.85, Youden index=0.63) in cardiac surgery, passive leg raising (AUC=0.90, Youden index=0.72) in cardiac ICU were reliable. CONCLUSION SVV had good predictive performance in cardiac surgery or ICU after cardiac surgery and had moderate predictive performance in thoracic surgery. Nevertheless, technical and clinical variables may affect the predictive value potentially.
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Affiliation(s)
- Sheng Huan
- Department of Anesthesiology, Nanjing Second Hospital, Nanjing, Jiangsu, China
- Nanjing Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, Jangsu, China
| | - Jin Dai
- Department of Anesthesiology, Nanjing Second Hospital, Nanjing, Jiangsu, China
| | - Shilian Song
- Department of Anesthesiology, Nanjing Second Hospital, Nanjing, Jiangsu, China
| | - Guining Zhu
- Department of Anesthesiology, Nanjing Second Hospital, Nanjing, Jiangsu, China
| | - Yihao Ji
- Nanjing Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, Jangsu, China
- Department of Critical Medicine, The Second Hospital of Nanjing, Nanjing, Jiangsu, China
| | - Guoping Yin
- Department of Anesthesiology, Nanjing Second Hospital, Nanjing, Jiangsu, China
- Nanjing Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, Jangsu, China
- College of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
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Kim SJ, Kim SY, Lee HS, Park G, Yoon EJ, Heo S, Koo BN. Ability of dynamic preload indices to predict fluid responsiveness in a high femoral-to-radial arterial pressure gradient: a retrospective study. Anesth Pain Med (Seoul) 2022; 16:360-367. [PMID: 35139617 PMCID: PMC8828628 DOI: 10.17085/apm.21001] [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: 12/31/2020] [Accepted: 07/20/2021] [Indexed: 11/18/2022] Open
Abstract
Background Dynamic preload indices may predict fluid responsiveness in end-stage liver disease. However, their usefulness in patients with altered vascular compliance is uncertain. This study is the first to evaluate whether dynamic indices can reliably predict fluid responsiveness in patients undergoing liver transplantation with a high femoral-to-radial arterial pressure gradient (PG). Methods Eighty liver transplant recipients were retrospectively categorized as having a normal (n = 56) or high (n = 24, difference in systolic pressure ≥ 10 mmHg and/or mean pressure ≥ 5 mmHg) femoral-to-radial arterial PG, measured immediately after radial and femoral arterial cannulation. The ability of dynamic preload indices (stroke volume variation, pulse pressure variation [PPV], pleth variability index) to predict fluid responsiveness was assessed before the surgery. Fluid replacement of 500 ml of crystalloid solution was performed over 15 min. Fluid responsiveness was defined as ≥ 15% increase in the stroke volume index. The area under the receiver-operating characteristic curve (AUC) indicated the prediction of fluid responsiveness. Results Fourteen patients in the normal, and eight in the high PG group were fluid responders. The AUCs for PPV in the normal, high PG groups and total patients were 0.702 (95% confidence interval [CI] 0.553–0.851, P = 0.008), 0.633 (95% CI 0.384–0.881, P = 0.295) and 0.667 (95% CI 0.537–0.798, P = 0.012), respectively. No other index predicted fluid responsiveness. Conclusion PPV can be used as a dynamic index of fluid responsiveness in patients with end-stage liver disease but not in patients with altered vascular compliance.
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Affiliation(s)
- Seon Ju Kim
- Department of Anesthesiology and Pain Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - So Yeon Kim
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Hye Sun Lee
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Goeun Park
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Eun Jang Yoon
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Sungtaik Heo
- Department of Anesthesiology and Pain Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Bon-Nyeo Koo
- Department of Anesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea
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Graessler MF, Wodack KH, Pinnschmidt HO, Nishimoto S, Behem CR, Reuter DA, Trepte CJC. Assessing volume responsiveness using right ventricular dynamic indicators of preload. J Anesth 2021; 35:488-494. [PMID: 33950295 PMCID: PMC8096889 DOI: 10.1007/s00540-021-02937-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 04/18/2021] [Indexed: 11/28/2022]
Abstract
PURPOSE Dynamic indicators of preload currently only do reflect preload requirements of the left ventricle. To date, no dynamic indicators of right ventricular preload have been established. The aim of this study was to calculate dynamic indicators of right ventricular preload and assess their ability to predict ventricular volume responsiveness. MATERIALS AND METHODS The study was designed as experimental trial in 20 anaesthetized pigs. Micro-tip catheters and ultrasonic flow probes were used as experimental reference to enable measurement of right ventricular stroke volume and pulse pressure. Hypovolemia was induced (withdrawal of blood 20 ml/kg) and thereafter three volume-loading steps were performed. ROC analysis was performed to assess the ability of dynamic right ventricular parameters to predict volume response. RESULTS ROC analysis revealed an area under the curve (AUC) of 0.82 (CI 95% 0.73-0.89; p < 0.001) for right ventricular stroke volume variation (SVVRV), an AUC of 0.72 (CI 95% 0.53-0.85; p = 0.02) for pulmonary artery pulse pressure variation (PPVPA) and an AUC of 0.66 (CI 95% 0.51-0.79; p = 0.04) for pulmonary artery systolic pressure variation (SPVPA). CONCLUSIONS In our experimental animal setting, calculating dynamic indicators of right ventricular preload is possible and appears promising in predicting volume responsiveness.
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Affiliation(s)
- Michael F Graessler
- Department of Anesthesiology, Centre for Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany.
| | - Karin H Wodack
- Department of Anesthesiology, Centre for Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | - Hans O Pinnschmidt
- Department of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sarah Nishimoto
- Department of Anesthesiology, Centre for Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
| | | | - Daniel A Reuter
- Department of Anesthesiology and Intensive Care Medicine, University Medical Center Rostock, Rostock, Germany
| | - Constantin J C Trepte
- Department of Anesthesiology, Centre for Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany
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Schiewe R, Bein B. [Monitoring of Fluid Therapy]. Anasthesiol Intensivmed Notfallmed Schmerzther 2021; 56:246-260. [PMID: 33890257 DOI: 10.1055/a-1118-7474] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Fluid and volume therapy is of paramount importance in anaesthesia and intensive care medicine. Fluid replacement as well as volume therapy can cause hypervolemia with deleterious consequences. Therefore, a prerequisite for an adequate volume therapy is the assessment of fluid responsiveness. Several monitoring techniques for evaluation of volume status and of volume responsiveness are currently used. However, there are several limitations of the different monitoring techniques that the user should be aware of. An algorithm can be helpful for a structured approach in monitoring volume therapy.
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10
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Smeltz AM, Kumar PA, Arora H. Anesthesia for Combined Heart and Liver Transplantation. J Cardiothorac Vasc Anesth 2020; 35:3350-3361. [PMID: 33384228 DOI: 10.1053/j.jvca.2020.12.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 11/26/2020] [Accepted: 12/03/2020] [Indexed: 01/23/2023]
Abstract
A heart or liver transplantation procedure performed in isolation itself presents multiple challenges for the perioperative team. Accordingly, combining both transplants yields a vastly more complicated surgery, with many unique multisystem and multidisciplinary considerations. Although combined heart and liver transplantations are being performed with increasing frequency, nationwide experience is relatively limited at most institutions. The aim of this review is to discuss the perioperative challenges presented to the anesthesiology teams and provide evidence-based guidance for the management of these daunting procedures.
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Affiliation(s)
- Alan M Smeltz
- Department of Anesthesiology, University of North Carolina at Chapel Hill, Chapel Hill, NC.
| | - Priya A Kumar
- Department of Anesthesiology, University of North Carolina at Chapel Hill, Chapel Hill, NC; Outcomes Research Consortium, Cleveland, OH
| | - Harendra Arora
- Department of Anesthesiology, University of North Carolina at Chapel Hill, Chapel Hill, NC; Outcomes Research Consortium, Cleveland, OH
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11
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Impact of intraoperative goal-directed fluid therapy on major morbidity and mortality after transthoracic oesophagectomy: a multicentre, randomised controlled trial. Br J Anaesth 2020; 125:953-961. [DOI: 10.1016/j.bja.2020.08.060] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 12/21/2022] Open
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12
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Herner A, Heilmaier M, Mayr U, Schmid RM, Huber W. Comparison of global end-diastolic volume index derived from jugular and femoral indicator injection: a prospective observational study in patients equipped with both a PiCCO-2 and an EV-1000-device. Sci Rep 2020; 10:20773. [PMID: 33247165 PMCID: PMC7695713 DOI: 10.1038/s41598-020-76286-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 02/28/2020] [Indexed: 11/21/2022] Open
Abstract
Transpulmonary thermodilution (TPTD)-derived global end-diastolic volume index (GEDVI) is a static marker of preload which better predicted volume responsiveness compared to filling pressures in several studies. GEDVI can be generated with at least two devices: PiCCO and EV-1000. Several studies showed that uncorrected indicator injection into a femoral central venous catheter (CVC) results in a significant overestimation of GEDVI by the PiCCO-device. Therefore, the most recent PiCCO-algorithm corrects for femoral indicator injection. However, there are no systematic data on the impact of femoral indicator injection for the EV-1000 device. Furthermore, the correction algorithm of the PiCCO is poorly validated. Therefore, we prospectively analyzed 14 datasets from 10 patients with TPTD-monitoring undergoing central venous catheter (CVC)- and arterial line exchange. PiCCO was replaced by EV-1000, femoral CVCs were replaced by jugular/subclavian CVCs and vice-versa. For PiCCO, jugular and femoral indicator injection derived GEDVI was comparable when the correct information about femoral catheter site was given (p = 0.251). By contrast, GEDVI derived from femoral indicator injection using the EV-1000 was obviously not corrected and was substantially higher than jugular GEDVI measured by the EV-1000 (846 ± 250 vs. 712 ± 227 ml/m2; p = 0.001). Furthermore, measurements of GEDVI were not comparable between PiCCO and EV-1000 even in case of jugular indicator injection (p = 0.003). This is most probably due to different indexations of the raw value GEDV. EV-1000 could not be recommended to measure GEDVI in case of a femoral CVC. Furthermore, different indexations used by EV-1000 and PiCCO should be considered even in case of a jugular CVC when comparing GEDVI derived from PiCCO and EV-1000.
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Pulse Oximeter Plethysmograph Variation During Hemorrhage in Beta-Blocker-Treated Swine. J Surg Res 2020; 256:468-475. [PMID: 32798994 DOI: 10.1016/j.jss.2020.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/25/2020] [Accepted: 07/11/2020] [Indexed: 11/23/2022]
Abstract
BACKGROUND Beta-blockers blunt the stress response to hemorrhage. Our aim was to investigate the feasibility of noninvasive pulse oximeter plethysmographic waveform variation (PoPV) for predicting blood volume loss in an esmolol-treated swine hemorrhagic shock model. MATERIALS AND METHODS Controlled hemorrhage was induced in eight male domestic pigs. In four pigs, a total of 15% and 30% blood volume was drawn step-by-step over 10 min in each step (controlled hemorrhage-only pigs). In the other four pigs, the heart rate (HR) was reduced and maintained by 30% from baseline by esmolol infusion before controlled hemorrhage (esmolol-treated pigs). Diagnostic abilities of HR, pulse pressure variation (PPV), PoPV, and mean arterial pressure for 15% and 30% blood volume loss were determined by the area under the receiver operating characteristic curve (AUC). RESULTS PoPV was well correlated with PPV in controlled hemorrhage-only pigs (r = 0.717) and esmolol-treated pigs (r = 0.532). In controlled hemorrhage-only pigs, HR (AUC = 0.841 and 0.864), PPV (0.878 and 0.843), and PoPV (0.779 and 0.793) accurately predicted 15% and 30% of blood volume loss. In esmolol-treated pigs, the diagnostic ability of HR was decreased (AUC = 0.766 and 0.733). However, diagnostic abilities of PPV (0.848 and 0.804) and PoPV (0.808 and 0.842) were not deteriorated. CONCLUSIONS The diagnostic ability of HR for blood volume loss was blunted by esmolol. However, those of PPV and PoPV were not altered. PoPV may be considered to be a useful noninvasive tool to predict blood volume loss in injured patients taking beta-blockers.
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Abstract
Dynamic variables that quantify the variations in the arterial pressure and plethysmographic waveforms during mechanical ventilation reflect fluid responsiveness. These variables may be helpful in identifying occult hypovolemia and in preventing unnecessary fluid administration.
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15
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Sander M, Schneck E, Habicher M. Management of perioperative volume therapy - monitoring and pitfalls. Korean J Anesthesiol 2020; 73:103-113. [PMID: 32106641 PMCID: PMC7113166 DOI: 10.4097/kja.20022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 02/26/2020] [Indexed: 12/14/2022] Open
Abstract
Over 300 million surgical procedures are performed every year worldwide. Anesthesiologists play an important role in the perioperative process by assessing the overall risk of surgery and aim to reduce the risk of complications. Perioperative hemodynamic and volume management can help to improve outcomes in perioperative patients. There has been ongoing discussion about goal-directed therapy. However, there is a consensus that fluid overload and severe fluid depletion in the perioperative period are harmful and can lead to adverse outcomes. This article provides an overview of how to evaluate the fluid responsiveness of patients, details which parameters could be used, and what limitations should be noted.
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Affiliation(s)
- Michael Sander
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Giessen, UKGM, Justus-Liebig University Giessen, Giessen, Germany
| | - Emmanuel Schneck
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Giessen, UKGM, Justus-Liebig University Giessen, Giessen, Germany
| | - Marit Habicher
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Giessen, UKGM, Justus-Liebig University Giessen, Giessen, Germany
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Pena-Hernandez C, Nugent K. One approach to circulation and blood flow in the critical care unit. World J Crit Care Med 2019; 8:36-48. [PMID: 31667132 PMCID: PMC6817932 DOI: 10.5492/wjccm.v8.i4.36] [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: 03/06/2019] [Revised: 05/24/2019] [Accepted: 06/12/2019] [Indexed: 02/06/2023] Open
Abstract
Evaluating and managing circulatory failure is one of the most challenging tasks for medical practitioners involved in critical care medicine. Understanding the applicability of some of the basic but, at the same time, complex physiological processes occurring during a state of illness is sometimes neglected and/or presented to the practitioners as point-of-care protocols to follow. Furthermore, managing hemodynamic shock has shown us that the human body is designed to fight to sustain life and that the compensatory mechanisms within organ systems are extraordinary. In this review article, we have created a minimalistic guide to the clinical information relevant when assessing critically ill patients with failing circulation. Measures such as organ blood flow, circulating volume, and hemodynamic biomarkers of shock are described. In addition, we will describe historical scientific events that led to some of our current medical practices and its validation for clinical decision making, and we present clinical advice for patient care and medical training.
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Affiliation(s)
- Camilo Pena-Hernandez
- Department of Internal Medicine, Division of Nephrology and Hypertension, Texas Tech University Health Sciences Center, Lubbock, TX 79430, United States
| | - Kenneth Nugent
- Department of Internal Medicine, Division of Pulmonary and Critical Care Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, United States
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Messina A, Dell'Anna A, Baggiani M, Torrini F, Maresca GM, Bennett V, Saderi L, Sotgiu G, Antonelli M, Cecconi M. Functional hemodynamic tests: a systematic review and a metanalysis on the reliability of the end-expiratory occlusion test and of the mini-fluid challenge in predicting fluid responsiveness. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:264. [PMID: 31358025 PMCID: PMC6664788 DOI: 10.1186/s13054-019-2545-z] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 07/17/2019] [Indexed: 01/22/2023]
Abstract
Background Bedside functional hemodynamic assessment has gained in popularity in the last years to overcome the limitations of static or dynamic indexes in predicting fluid responsiveness. The aim of this systematic review and metanalysis of studies is to investigate the reliability of the functional hemodynamic tests (FHTs) used to assess fluid responsiveness in adult patients in the intensive care unit (ICU) and operating room (OR). Methods MEDLINE, EMBASE, and Cochrane databases were screened for relevant articles using a FHT, with the exception of the passive leg raising. 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. Bias assessment graphs were plotted, and Egger’s regression analysis was used to evaluate the publication bias. The metanalysis determined the pooled area under the receiving operating characteristic (ROC) curve, sensitivity, specificity, and threshold for two FHTs: the end-expiratory occlusion test (EEOT) and the mini-fluid challenge (FC). Results After text selection, 21 studies met the inclusion criteria, 7 performed in the OR, and 14 in the ICU between 2005 and 2018. The search included 805 patients and 870 FCs with a median (IQR) of 39 (25–50) patients and 41 (30–52) FCs per study. The median fluid responsiveness was 54% (45–59). Ten studies (47.6%) adopted a gray zone analysis of the ROC curve, and a median (IQR) of 20% (15–51) of the enrolled patients was included in the gray zone. The pooled area under the ROC curve for the end-expiratory occlusion test (EEOT) was 0.96 (95%CI 0.92–1.00). The pooled sensitivity and specificity were 0.86 (95%CI 0.74–0.94) and 0.91 (95%CI 0.85–0.95), respectively, with a best threshold of 5% (4.0–8.0%). The pooled area under the ROC curve for the mini-FC was 0.91 (95%CI 0.85–0.97). The pooled sensitivity and specificity were 0.82 (95%CI 0.76–0.88) and 0.83 (95%CI 0.77–0.89), respectively, with a best threshold of 5% (3.0–7.0%). Conclusions The EEOT and the mini-FC reliably predict fluid responsiveness in the ICU and OR. Other FHTs have been tested insofar in heterogeneous clinical settings and, despite promising results, warrant further investigations. Electronic supplementary material The online version of this article (10.1186/s13054-019-2545-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Antonio Messina
- Department of Anesthesia and Intensive Care Medicine, Humanitas Clinical and Research Center - IRCCS, Via Alessandro Manzoni, 56, 20089, Rozzano, MI, Italy.
| | - Antonio Dell'Anna
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of the Sacred Heart, Fondazione "Policlinico Universitario A. Gemelli", Rome, Italy.,Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Marta Baggiani
- Department of Anesthesiology and Intensive Care Medicine, A.O.U. Maggiore della Carità, Novara, Italy
| | - Flavia Torrini
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of the Sacred Heart, Fondazione "Policlinico Universitario A. Gemelli", Rome, Italy.,Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Gian Marco Maresca
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of the Sacred Heart, Fondazione "Policlinico Universitario A. Gemelli", Rome, Italy.,Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Victoria Bennett
- Department of Intensive Care Medicine, St George's University Hospital NHS Foundation Trust, London, UK
| | - Laura Saderi
- Clinical Epidemiology and Medical Statistics Unit, Department of Biomedical Sciences, University of Sassari, Research, Medical Education and Professional Development Unit, AOU Sassari, Sassari, Italy
| | - Giovanni Sotgiu
- Clinical Epidemiology and Medical Statistics Unit, Department of Biomedical Sciences, University of Sassari, Research, Medical Education and Professional Development Unit, AOU Sassari, Sassari, Italy
| | - Massimo Antonelli
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of the Sacred Heart, Fondazione "Policlinico Universitario A. Gemelli", Rome, Italy.,Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Maurizio Cecconi
- Department of Anesthesia and Intensive Care Medicine, Humanitas Clinical and Research Center - IRCCS, Via Alessandro Manzoni, 56, 20089, Rozzano, MI, Italy.,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, MI, Italy
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Bubenek-Turconi ŞI, Hendy A, Băilă S, Drăgan A, Chioncel O, Văleanu L, Moroșanu B, Iliescu VA. The value of a superior vena cava collapsibility index measured with a miniaturized transoesophageal monoplane continuous echocardiography probe to predict fluid responsiveness compared to stroke volume variations in open major vascular surgery: a prospective cohort study. J Clin Monit Comput 2019; 34:491-499. [PMID: 31278544 PMCID: PMC7223808 DOI: 10.1007/s10877-019-00346-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 06/27/2019] [Indexed: 11/28/2022]
Abstract
Superior vena cava collapsibility index (SVC-CI) and stroke volume variation (SVV) have been shown to predict fluid responsiveness. SVC-CI has been validated only with conventional transoesophageal echocardiography (TEE) in the SVC long axis, on the basis of SVC diameter variations, but not in the SVC short axis or by SVC area variations. SVV was not previously tested in vascular surgery patients. Forty consecutive adult patients undergoing open major vascular surgical procedures received 266 intraoperative volume loading tests (VLTs), with 500 ml of gelatine over 10 min. The hSVC-CI was measured using a miniaturized transoesophageal echocardiography probe (hTEE). The SVV and cardiac index (CI) were measured using Vigileo-FloTrac technology. VLTs were considered 'positive' (≥ 11% increase in CI) or 'negative' (< 11% increase in CI). We compared SVV and hSVC-CI measurements in the SVC short axis to predict fluid responsiveness. Areas under the receiver operating characteristic curves for hSVC-CI and SVV were not significantly different (P = 0.56), and both showed good predictivity at values of 0.92 (P < 0.001) and 0.89 (P < 0.001), respectively. The cutoff values for hSVC-CI and SVV were 37% (sensitivity 90%, specificity of 83%) and 15% (sensitivity 78%, specificity of 100%), respectively. Our study validated the value of the SVC-CI measured as area variations in the SVC short axis to predict fluid responsiveness in anesthetized patients. An hTEE probe was used to monitor and measure the hSVC-CI but conventional TEE may also offer this new dynamic parameter. In our cohort of significant preoperative hypovolemic patients undergoing major open vascular surgery, hSVC-CI and SVV cutoff values of 37% and 15%, respectively, predicted fluid responsiveness with good accuracy.
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Affiliation(s)
- Şerban-Ion Bubenek-Turconi
- University of Medicine and Pharmacy "Carol Davila" Bucharest, Bulevardul Eroii Sanitari Nr. 8, 050474, Bucharest, Romania. .,1-st Department of Cardiovascular Anaesthesiology and Intensive Care, "Prof. C. C. Iliescu" Emergency Institute for Cardiovascular Diseases, Șos. Fundeni Nr. 258, 022328, Bucharest, Romania.
| | - Adham Hendy
- University of Medicine and Pharmacy "Carol Davila" Bucharest, Bulevardul Eroii Sanitari Nr. 8, 050474, Bucharest, Romania
| | - Sorin Băilă
- University of Medicine and Pharmacy "Carol Davila" Bucharest, Bulevardul Eroii Sanitari Nr. 8, 050474, Bucharest, Romania.,Department of Cardiovascular Surgery, "Prof. C. C. Iliescu" Emergency Institute for Cardiovascular Diseases, Șos. Fundeni Nr. 258, 022328, Bucharest, Romania
| | - Anca Drăgan
- 1-st Department of Cardiovascular Anaesthesiology and Intensive Care, "Prof. C. C. Iliescu" Emergency Institute for Cardiovascular Diseases, Șos. Fundeni Nr. 258, 022328, Bucharest, Romania
| | - Ovidiu Chioncel
- University of Medicine and Pharmacy "Carol Davila" Bucharest, Bulevardul Eroii Sanitari Nr. 8, 050474, Bucharest, Romania.,1-st Department of Cardiology, "Prof. C. C. Iliescu" Emergency Institute for Cardiovascular Diseases, Șos. Fundeni Nr. 258, 022328, Bucharest, Romania
| | - Liana Văleanu
- University of Medicine and Pharmacy "Carol Davila" Bucharest, Bulevardul Eroii Sanitari Nr. 8, 050474, Bucharest, Romania.,1-st Department of Cardiovascular Anaesthesiology and Intensive Care, "Prof. C. C. Iliescu" Emergency Institute for Cardiovascular Diseases, Șos. Fundeni Nr. 258, 022328, Bucharest, Romania
| | - Bianca Moroșanu
- University of Medicine and Pharmacy "Carol Davila" Bucharest, Bulevardul Eroii Sanitari Nr. 8, 050474, Bucharest, Romania.,1-st Department of Cardiovascular Anaesthesiology and Intensive Care, "Prof. C. C. Iliescu" Emergency Institute for Cardiovascular Diseases, Șos. Fundeni Nr. 258, 022328, Bucharest, Romania
| | - Vlad-Anton Iliescu
- University of Medicine and Pharmacy "Carol Davila" Bucharest, Bulevardul Eroii Sanitari Nr. 8, 050474, Bucharest, Romania.,Department of Cardiovascular Surgery, "Prof. C. C. Iliescu" Emergency Institute for Cardiovascular Diseases, Șos. Fundeni Nr. 258, 022328, Bucharest, Romania
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Meddeb K, Boussarsar M. Letter on "Sigh maneuver to enhance assessment of fluid responsiveness during pressure support ventilation". CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:188. [PMID: 31126317 PMCID: PMC6533664 DOI: 10.1186/s13054-019-2457-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 04/25/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Khaoula Meddeb
- Medical Intensive Care Unit, Farhat Hached University Hospital, 4000, Sousse, Tunisia.,Research Laboratory No. LR12SP09, Heart Failure, Faculty of Medicine of Sousse, University of Sousse, Sousse, 4000, Tunisia
| | - Mohamed Boussarsar
- Medical Intensive Care Unit, Farhat Hached University Hospital, 4000, Sousse, Tunisia. .,Research Laboratory No. LR12SP09, Heart Failure, Faculty of Medicine of Sousse, University of Sousse, Sousse, 4000, Tunisia.
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Oricco S, Rabozzi R, Meneghini C, Franci P. Usefulness of focused cardiac ultrasonography for predicting fluid responsiveness in conscious, spontaneously breathing dogs. Am J Vet Res 2019; 80:369-377. [PMID: 30919671 DOI: 10.2460/ajvr.80.4.369] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To evaluate the diagnostic usefulness of focused cardiac ultrasonography and selected echocardiographic variables for predicting fluid responsiveness in conscious, spontaneously breathing dogs with various clinical conditions. ANIMALS 26 dogs (15 males and 11 females) with a median age of 84 months (range, 12 to 360 months) and median body weight of 8 kg (range, 2 to 35 kg) referred for various clinical conditions. PROCEDURES Left ventricular end-diastolic internal diameter normalized to body weight (LVIDDn), left ventricular volume score (LVVS), left ventricular end-diastolic volume index (EDVI), aortic velocity time integral (VTIAo), and aortic peak flow velocity (VmaxAo) were echocardiographically measured before and after IV administration of a bolus of lactated Ringer solution (4 mL/kg) over a 1-minute period. Dogs were classified on the basis of the observed change in aortic stroke volume following fluid administration as responders (≥ 15%) or nonresponders (< 15%) to fluid administration. Receiver operating characteristic curves were generated for the ability of LVVS, LVIDDn, EDVI, VTIAo, and VmaxAo to predict responder status. RESULTS 13 dogs were classified as responders and 13 as nonresponders. Areas under the receiver operating characteristic curves (95% confidence intervals) for predicting fluid responsiveness were as follows: VTIAo, 0.91 (0.74 to 0.99); LVIDDn, 0.85 (0.66 to 0.96); EDVI, 0.85 (0.65 to 0.96); LVVS, 0.85 (0.65 to 0.96); and VmaxAo, 0.75 (0.54 to 0.90). CONCLUSIONS AND CLINICAL RELEVANCE The evaluated echocardiographic variables were useful for noninvasive prediction of fluid responsiveness in conscious dogs and could be valuable for informing clinical decisions regarding fluid therapy.
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Messina A, Colombo D, Barra FL, Cammarota G, De Mattei G, Longhini F, Romagnoli S, DellaCorte F, De Backer D, Cecconi M, Navalesi P. Sigh maneuver to enhance assessment of fluid responsiveness during pressure support ventilation. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:31. [PMID: 30691523 PMCID: PMC6350369 DOI: 10.1186/s13054-018-2294-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 12/13/2018] [Indexed: 11/25/2022]
Abstract
Background Assessment of fluid responsiveness is problematic in intensive care unit (ICU) patients, in particular for those undergoing modes of partial support, such as pressure support ventilation (PSV). We propose a new test, based on application of a ventilator-generated sigh, to predict fluid responsiveness in ICU patients undergoing PSV. Methods This was a prospective bi-centric interventional study conducted in two general ICUs. In 40 critically ill patients with a stable ventilatory PSV pattern and requiring volume expansion (VE), we assessed the variations in arterial systolic pressure (SAP), pulse pressure (PP) and stroke volume index (SVI) consequent to random application of 4-s sighs at three different inspiratory pressures. A radial arterial signal was directed to the MOSTCARE™ pulse contour hemodynamic monitoring system for hemodynamic measurements. Data obtained during sigh tests were recorded beat by beat, while all the hemodynamic parameters were averaged over 30 s for the remaining period of the study protocol. VE consisted of 500 mL of crystalloids over 10 min. A patient was considered a responder if a VE-induced increase in cardiac index (CI) ≥ 15% was observed. Results The slopes for SAP, SVI and PP of were all significantly different between responders and non-responders (p < 0.0001, p = 0.0004 and p < 0.0001, respectively). The AUC of the slope of SAP (0.99; sensitivity 100.0% (79.4–100.0%) and specificity 95.8% (78.8–99.9%) was significantly greater than the AUC for PP (0.91) and SVI (0.83) (p = 0.04 and 0.009, respectively). The SAP slope best threshold value of the ROC curve was − 4.4° from baseline. The only parameter found to be independently associated with fluid responsiveness among those included in the logistic regression was the slope for SAP (p = 0.009; odds ratio 0.27 (95% confidence interval (CI95) 0.10–0.70)). The effects produced by the sigh at 35 cmH20 (Sigh35) are significantly different between responders and non-responders. For a 35% reduction in PP from baseline, the AUC was 0.91 (CI95 0.82–0.99), with sensitivity 75.0% and specificity 91.6%. Conclusions In a selected ICU population undergoing PSV, analysis of the slope for SAP after the application of three successive sighs and the nadir of PP after Sigh35 reliably predict fluid responsiveness. Trial registration Australian New Zealand Clinical Trials Registry, ACTRN12615001232527. Registered on 10 November 2015. Electronic supplementary material The online version of this article (10.1186/s13054-018-2294-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Antonio Messina
- Department of Anesthesia and Intensive Care Medicine, IRCCS Humanitas, Humanitas University, Via Alessandro Manzoni, 56, Rozzano, 20089, Milan, Italy.
| | - Davide Colombo
- Anesthesia and Intensive Care Medicine, Maggiore della Carità University Hospital, Novara, Italy
| | - Federico Lorenzo Barra
- Department of Anesthesia and Intensive Care Medicine, IRCCS Humanitas, Humanitas University, Via Alessandro Manzoni, 56, Rozzano, 20089, Milan, Italy
| | - Gianmaria Cammarota
- Anesthesia and Intensive Care Medicine, Maggiore della Carità University Hospital, Novara, Italy
| | - Giacomo De Mattei
- Anesthesia and Intensive Care, Azienda Sanitaria Universitaria Integrata, Udine, Italy
| | - Federico Longhini
- Anesthesia and Intensive Care Medicine, Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
| | - Stefano Romagnoli
- Department of Anesthesia and Intensive Care, University of Florence, Azienda Ospedaliero-Universitaria Careggi, Florence, Italy
| | - Francesco DellaCorte
- Anesthesia and Intensive Care Medicine, Maggiore della Carità University Hospital, Novara, Italy
| | | | - Maurizio Cecconi
- Department of Anesthesia and Intensive Care Medicine, IRCCS Humanitas, Humanitas University, Via Alessandro Manzoni, 56, Rozzano, 20089, Milan, Italy
| | - Paolo Navalesi
- Anesthesia and Intensive Care Medicine, Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
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Wang Y, Jiang Y, Wu H, Wang R, Wang Y, Du C. Assessment of fluid responsiveness by inferior vena cava diameter variation in post-pneumonectomy patients. Echocardiography 2018; 35:1922-1925. [PMID: 30338549 PMCID: PMC6587495 DOI: 10.1111/echo.14172] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 09/16/2018] [Accepted: 09/20/2018] [Indexed: 11/30/2022] Open
Abstract
AIM First, the inferior vena cava dilatation index (DIVC) was measured by ultrasound, and then the reliability of DIVC as an indicator to predict volume responsiveness in patients undergoing mechanical ventilation after pneumonectomy was evaluated. METHODS Pulse indicator continuous cardiac output (Picco) as gold standard was performed to sedated mechanically ventilated post-pneumonectomy patients in intensive care unit of Nanjing Thoracic Hospital from August 2014 to December 2016. Meanwhile, ultrasound measurement to inferior vena cava (IVC) diameter at the end inspiration (Dmax ) and the end of expiration (Dmin ) was performed. DIVC = (Dmax - Dmin )/Dmin . Above values were recorded at baseline and then after fluid resuscitation challenge (7 mL/kg hydroxyethyl starch). An increase in cardiac index of more than 15% was used as the standard for fluid responsiveness. Patients were divided into responsive group and non-responsive group. A receiver operating characteristic (ROC) curve was then used to determine the sensitivity and specificity of DIVC in predicting fluid responsiveness after pneumonectomy. RESULTS Eighteen patients were enrolled. 10 patients were divided into responsive group and eight in non-responsive group. DIVC in responsive group was significantly higher than in non-responsive group (P < 0.01). By setting DIVC ≥ 15% as a measure of fluid responsiveness, sensitivity was 81.8% and specificity was 85.7%. CONCLUSION DIVC is a reliable indicator of capacity responsiveness in mechanically ventilated post-pneumonectomy patients.
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Affiliation(s)
- Yan Wang
- Intensive Care Unit, Nanjing Chest Hospital, Nanjing, China
| | - Yinghou Jiang
- Intensive Care Unit, Nanjing Chest Hospital, Nanjing, China
| | - Hongning Wu
- Ultrasonic Department, Nanjing Chest Hospital, Nanjing, China
| | - Runfeng Wang
- Intensive Care Unit, Nanjing Chest Hospital, Nanjing, China
| | - Ying Wang
- Intensive Care Unit, Nanjing Chest Hospital, Nanjing, China
| | - Cheng Du
- Intensive Care Unit, Nanjing Chest Hospital, Nanjing, China
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Jacobs R, Lochy S, Malbrain MLNG. Phenylephrine-induced recruitable preload from the venous side. J Clin Monit Comput 2018; 33:373-376. [PMID: 30478524 PMCID: PMC6499741 DOI: 10.1007/s10877-018-0225-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 11/14/2018] [Indexed: 01/27/2023]
Affiliation(s)
- Rita Jacobs
- Intensive Care Department, University Hospital Brussels (UZB), Laarbeeklaan 101, 1090, Jette, Belgium
| | - Stijn Lochy
- Intensive Care Department, University Hospital Brussels (UZB), Laarbeeklaan 101, 1090, Jette, Belgium.,Cardiology Department, University Hospital Brussels (UZB), Jette, Belgium
| | - Manu L N G Malbrain
- Intensive Care Department, University Hospital Brussels (UZB), Laarbeeklaan 101, 1090, Jette, Belgium. .,Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel (VUB), Brussels, Belgium.
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Predicting fluid responsiveness: A review of literature and a guide for the clinician. Am J Emerg Med 2018; 36:2093-2102. [DOI: 10.1016/j.ajem.2018.08.037] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 07/27/2018] [Accepted: 08/13/2018] [Indexed: 01/04/2023] Open
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Huber W, Mayr U, Umgelter A, Franzen M, Reindl W, Schmid RM, Eckel F. Mandatory criteria for the application of variability-based parameters of fluid responsiveness: a prospective study in different groups of ICU patients. J Zhejiang Univ Sci B 2018; 19:515-524. [PMID: 29971990 DOI: 10.1631/jzus.b1700243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND AND OBJECTIVE Stroke volume variation (SVV) has high sensitivity and specificity in predicting fluid responsiveness. However, sinus rhythm (SR) and controlled mechanical ventilation (CV) are mandatory for their application. Several studies suggest a limited applicability of SVV in intensive care unit (ICU) patients. We hypothesized that the applicability of SVV might be different over time and within certain subgroups of ICU patients. Therefore, we analysed the prevalence of SR and CV in ICU patients during the first 24 h of PiCCO-monitoring (primary endpoint) and during the total ICU stay. We also investigated the applicability of SVV in the subgroups of patients with sepsis, cirrhosis, and acute pancreatitis. METHODS The prevalence of SR and CV was documented immediately before 1241 thermodilution measurements in 88 patients. RESULTS In all measurements, SVV was applicable in about 24%. However, the applicability of SVV was time-dependent: the prevalence of both SR and CV was higher during the first 24 h compared to measurements thereafter (36.1% vs. 21.9%; P<0.001). Within different subgroups, the applicability during the first 24 h of monitoring ranged between 0% in acute pancreatitis, 25.5% in liver failure, and 48.9% in patients without pancreatitis, liver failure, pneumonia or sepsis. CONCLUSIONS The applicability of SVV in a predominantly medical ICU is only about 25%-35%. The prevalence of both mandatory criteria decreases over time during the ICU stay. Furthermore, the applicability is particularly low in patients with acute pancreatitis and liver failure.
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Affiliation(s)
- Wolfgang Huber
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, D-81675 München, Germany
| | - Uli Mayr
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, D-81675 München, Germany
| | - Andreas Umgelter
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, D-81675 München, Germany
| | - Michael Franzen
- Universitätsklinik für Innere Medizin I, Salzburger Landeskliniken, Universitätsklinikum Salzburg, Müllner Hauptstraße 48, A-5020 Salzburg, Austria
| | - Wolfgang Reindl
- II. Medizinische Klinik, Universitätsklinikum Mannheim, Theodor-Kutzer-Ufer 1-3, D-68167 Mannheim, Germany
| | - Roland M Schmid
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, D-81675 München, Germany
| | - Florian Eckel
- Klinik für Innere Medizin, RoMed Klinik Bad Aibling, Harthauser Straße 16, D-83043 Bad Aibling, Germany
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Aref A, Zayan T, Sharma A, Halawa A. Utility of central venous pressure measurement in renal transplantation: Is it evidence based? World J Transplant 2018; 8:61-67. [PMID: 29988941 PMCID: PMC6033741 DOI: 10.5500/wjt.v8.i3.61] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 03/05/2018] [Accepted: 04/01/2018] [Indexed: 02/05/2023] Open
Abstract
Adequate intravenous fluid therapy is essential in renal transplant recipients to ensure a good allograft perfusion. Central venous pressure (CVP) has been considered the cornerstone to guide the fluid therapy for decades; it was the only available simple tool worldwide. However, the revolutionary advances in assessing the dynamic preload variables together with the availability of new equipment to precisely measure the effect of intravenous fluids on the cardiac output had created a question mark on the future role of CVP. Despite the critical role of fluid therapy in the field of transplantation. There are only a few clinical studies that compared the CVP guided fluid therapy with the other modern techniques and their relation to the outcome in renal transplantation. Our work sheds some light on the available published data in renal transplantation, together with data from other disciplines evaluating the utility of central venous pressure measurement. Although lager well-designed studies are still required to consolidate the role of new techniques in the field of renal transplantation, we can confidently declare that the new techniques have the advantages of providing more accurate haemodynamic assessment, which results in a better patient outcome.
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Affiliation(s)
- Ahmed Aref
- Department of Nephrology, Sur hospital, Sur 411, Sultanate of Oman
- Faculty of Health and Science, Institute of Learning and Teaching, University of Liverpool, Liverpool L69 3GB, United Kingdom
| | - Tariq Zayan
- Department of Nephrology, Sur hospital, Sur 411, Sultanate of Oman
- Faculty of Health and Science, Institute of Learning and Teaching, University of Liverpool, Liverpool L69 3GB, United Kingdom
| | - Ajay Sharma
- Faculty of Health and Science, Institute of Learning and Teaching, University of Liverpool, Liverpool L69 3GB, United Kingdom
- Department of Transplantation Surgery, Royal Liverpool University Hospital, Liverpool L7 8XP, United Kingdom
| | - Ahmed Halawa
- Faculty of Health and Science, Institute of Learning and Teaching, University of Liverpool, Liverpool L69 3GB, United Kingdom
- Department of Transplantation Surgery, Sheffield Teaching Hospitals, Sheffield S5 7AU, United Kingdom
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Sano H, Seo J, Wightman P, Cave NJ, Gieseg MA, Johnson CB, Chambers P. Evaluation of pulse pressure variation and pleth variability index to predict fluid responsiveness in mechanically ventilated isoflurane-anesthetized dogs. J Vet Emerg Crit Care (San Antonio) 2018; 28:301-309. [PMID: 29898246 DOI: 10.1111/vec.12728] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 07/29/2016] [Accepted: 08/19/2016] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To evaluate whether pulse pressure variation (PPV) and pleth variability index (PVI) are more accurate than central venous pressure (CVP) for predicting fluid responsiveness in mechanically ventilated isoflurane-anesthetized dogs after premedication with acepromazine. DESIGN Prospective experimental trial. SETTING University teaching hospital. ANIMALS Twelve Harrier hound dogs. INTERVENTIONS Each dog was anesthetized and had a fluid challenge performed. This was repeated 4 weeks later for a total of 24 fluid challenges. After premedication with intramuscular acepromazine, anesthesia was induced with propofol and maintained with isoflurane. The dogs were mechanically ventilated with constant settings. The fluid challenge consisted of 10 mL/kg of 6% hydroxyethyl starch intravenously over 13 minutes. MEASUREMENTS AND MAIN RESULTS Before and after the fluid challenge, PPV, PVI, CVP, and other hemodynamics were recorded. Change in velocity time integral of pulmonary arterial blood flow by echocardiography was calculated as an indication of change in stroke volume. A fluid responder was defined as an increase in velocity time integral ≥ 15%. Receiver operator characteristic (ROC) curves were used to determine cutoff values. Areas under ROC curve were calculated and compared. Dogs responded on 14 fluid challenges and did not on 10. Cutoff values for PPV and PVI were 11% (sensitivity 79%; specificity 80%) and 9.3% (sensitivity 86%; specificity 70%), respectively. The areas under the ROC curve of PPV [0.85, 95% confidence interval (CI): 0.70-1.00, P = 0.038] and PVI (0.84, 95% CI: 0.68-1.00, P = 0.043) were significantly higher than CVP (0.56, 95% CI: 0.32-0.81). CONCLUSIONS PPV and PVI predicted fluid responsiveness more accurately than CVP and may be useful to guide fluid administration in mechanically ventilated isoflurane-anesthetized dogs after premedication with acepromazine.
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Affiliation(s)
- Hiroki Sano
- Institute of Veterinary, Animal and Biomedical Sciences, College of Sciences, Massey University, Palmerston North 4442
| | - Joonbum Seo
- Institute of Veterinary, Animal and Biomedical Sciences, College of Sciences, Massey University, Palmerston North 4442
| | - Paul Wightman
- Institute of Veterinary, Animal and Biomedical Sciences, College of Sciences, Massey University, Palmerston North 4442
| | - Nick J Cave
- Institute of Veterinary, Animal and Biomedical Sciences, College of Sciences, Massey University, Palmerston North 4442
| | - Mike A Gieseg
- Veterinary Health Research NZ, Hamilton 3240, New Zealand
| | - Craig B Johnson
- Institute of Veterinary, Animal and Biomedical Sciences, College of Sciences, Massey University, Palmerston North 4442
| | - Paul Chambers
- Institute of Veterinary, Animal and Biomedical Sciences, College of Sciences, Massey University, Palmerston North 4442
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Lema Tome M, De la Gala FA, Piñeiro P, Olmedilla L, Garutti I. Behavior of stroke volume variation in hemodynamic stable patients during thoracic surgery with one-lung ventilation periods. BRAZILIAN JOURNAL OF ANESTHESIOLOGY (ENGLISH EDITION) 2018. [PMID: 29477233 PMCID: PMC9391809 DOI: 10.1016/j.bjane.2017.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Introduction In last few years, emphasis was placed in goal-directed therapy in order to optimize patient's hemodynamic status and improve their prognosis. Parameters based on the interaction between heart and lungs have been questioned in situations like low tidal volume and open chest surgery. The goal of the study was to analyze the changes that one-lung ventilation can produce over stroke volume variation and to assess the possible impact of airway pressures and lung compliance over stroke volume variation. Methods Prospective observational study, 112 patients undergoing lung resection surgery with one-lung ventilation periods were included. Intravenous fluid therapy with crystalloids was set at 2 mL.g−1. Hypotension episodes were treated with vasoconstrictive drugs. Two-lung Ventilation was implemented with a TV of 8 mL.g−1 and one-lung ventilation was managed with a TV of 6 mL.g−1. Invasive blood pressure was monitored. We recorded the following cardiorespiratory values: heart rate, mean arterial pressure, cardiac index, stroke volume index, airway peak pressure, airway plateau pressure and static lung compliance at 3 different times during surgery: immediately after lung collapse, 30 min after initiating one-lung ventilation and after restoration of two-lung ventilation. Results Stroke volume variation values were influenced by lung collapse (before lung collapse 14.6 (DS) vs. OLV 9.9% (DS), p < 0.0001); or after restoring two-lung ventilation (11.01 (DS), p < 0.0001). During two-lung Ventilation there was a significant correlation between airway pressures and stroke volume variation, however this correlation lacks during one-lung ventilation. Conclusion The decrease of stroke volume variation values during one-lung ventilation with protective ventilatory strategies advices not to use the same threshold values to determine fluid responsiveness.
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Lema Tome M, De la Gala FA, Piñeiro P, Olmedilla L, Garutti I. Comportamento da variação do volume sistólico em pacientes hemodinamicamente estáveis durante cirurgia torácica com períodos de ventilação monopulmonar. Braz J Anesthesiol 2018; 68:225-230. [DOI: 10.1016/j.bjan.2017.11.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 11/08/2017] [Indexed: 01/13/2023] Open
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Ma GG, Hao GW, Yang XM, Zhu DM, Liu L, Liu H, Tu GW, Luo Z. Internal jugular vein variability predicts fluid responsiveness in cardiac surgical patients with mechanical ventilation. Ann Intensive Care 2018; 8:6. [PMID: 29340792 PMCID: PMC5770347 DOI: 10.1186/s13613-017-0347-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 12/26/2017] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND To evaluate the efficacy of using internal jugular vein variability (IJVV) as an index of fluid responsiveness in mechanically ventilated patients after cardiac surgery. METHODS Seventy patients were assessed after cardiac surgery. Hemodynamic data coupled with ultrasound evaluation of IJVV and inferior vena cava variability (IVCV) were collected and calculated at baseline, after a passive leg raising (PLR) test and after a 500-ml fluid challenge. Patients were divided into volume responders (increase in stroke volume ≥ 15%) and non-responders (increase in stroke volume < 15%). We compared the differences in measured variables between responders and non-responders and tested the ability of the indices to predict fluid responsiveness. RESULTS Thirty-five (50%) patients were fluid responders. Responders presented higher IJVV, IVCV and stroke volume variation (SVV) compared with non-responders at baseline (P < 0.05). The relationship between IJVV and SVV was moderately correlated (r = 0.51, P < 0.01). The areas under the receiver operating characteristic (ROC) curves for predicting fluid responsiveness were 0.88 (CI 0.78-0.94) for IJVV compared with 0.83 (CI 0.72-0.91), 0.97 (CI 0.89-0.99), 0.91 (CI 0.82-0.97) for IVCV, SVV, and the increase in stroke volume in response to a PLR test, respectively. CONCLUSIONS Ultrasound-derived IJVV is an accurate, easily acquired noninvasive parameter of fluid responsiveness in mechanically ventilated postoperative cardiac surgery patients, with a performance similar to that of IVCV.
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Affiliation(s)
- Guo-guang Ma
- 0000 0001 0125 2443grid.8547.eDepartment of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai, 200032 Xuhui District People’s Republic of China
| | - Guang-wei Hao
- 0000 0001 0125 2443grid.8547.eDepartment of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai, 200032 Xuhui District People’s Republic of China
| | - Xiao-mei Yang
- 0000 0001 0125 2443grid.8547.eDepartment of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai, 200032 Xuhui District People’s Republic of China
| | - Du-ming Zhu
- 0000 0001 0125 2443grid.8547.eDepartment of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai, 200032 Xuhui District People’s Republic of China
| | - Lan Liu
- 0000 0001 0125 2443grid.8547.eDepartment of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai, 200032 Xuhui District People’s Republic of China
| | - Hua Liu
- 0000 0001 0125 2443grid.8547.eDepartment of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai, 200032 Xuhui District People’s Republic of China
| | - Guo-wei Tu
- 0000 0001 0125 2443grid.8547.eDepartment of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai, 200032 Xuhui District People’s Republic of China
| | - Zhe Luo
- 0000 0001 0125 2443grid.8547.eDepartment of Critical Care Medicine, Zhongshan Hospital, Fudan University, No. 180 Fenglin Road, Shanghai, 200032 Xuhui District People’s Republic of China
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Bolliger D, Poltera C, Cheung AT, Couture P, Michaux I, Poelaert J, Preisman S, Skarvan K, Buse GL, Seeberger MD. Assessment of Left Ventricular Dimensions by Transoesophageal Echocardiography in Patients During Coronary Artery Bypass Surgery. Turk J Anaesthesiol Reanim 2017; 45:367-373. [PMID: 29359077 PMCID: PMC5772417 DOI: 10.5152/tjar.2017.25483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Accepted: 07/10/2017] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE Normative values of left ventricular (LV) end-diastolic area and diameter (EDA and EDD) for intraoperative transoesophageal echocardiography (TEE) have not been established. We aimed to define the ranges of LV EDA and EDD for intraoperative TEE examinations in patients undergoing coronary artery bypass graft (CABG) surgery. METHODS A MEDLINE search for studies reporting LV EDA and EDD in CABG patients was performed. Individual-level dataset from 333 anaesthetised and mechanically ventilated patients with preserved LV function (study population) were received from 8 studies. EDA and calculated EDD values in the study population were compared with summary mean EDD values obtained by transthoracic echocardiography (TTE) in 2 studies of 500 awake patients with coronary artery disease (CAD). Further, the influence of prespecified factors on EDD was evaluated through a multivariate regression model. RESULTS LV EDA and EDD values measured by TEE in anaesthetised CABG patients were 16.7±4.7 cm2 and 4.6±0.6 cm, respectively. EDD values measured by TEE in anaesthetised patients were 10% to 13% less those measured by TTE in 2 studies of awake patients (p<0.001). Body surface area, age and fractional area change but not sex were factors that affected LV EDD. CONCLUSION LV EDD values measured by intraoperative TEE in anaesthetised and mechanically ventilated CABG patients were 10% to 13% less than those measured by TTE in awake CAD patients. This finding indicates that independent normative values specific for intraoperative TEE should be established for guiding intraoperative clinical decisions.
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Affiliation(s)
- Daniel Bolliger
- Department of Anesthesiology, Surgical Intensive Care, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, Basel, Switzerland
| | - Corsin Poltera
- Department of Anesthesiology, Surgical Intensive Care, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, Basel, Switzerland
| | - Albert T. Cheung
- Department of Anesthesia, University of Pennsylvania, Philadelphia, USA
| | - Pierre Couture
- Department of Anesthesiology, Montreal Heart Institution, University of Montréal, Montréal, Quebec, Canada
| | - Isabelle Michaux
- Department of Intensive Care Medicine, Mont-Godinne University Hospital, Université Catholique de Louvain, Yvoir, Belgium
| | - Jan Poelaert
- Department of Anesthesiology and Perioperative Medicine, University Hospital-Free University of Brussels, Brussels, Belgium
| | - Sergey Preisman
- Department of Anesthesiology and Intensive Care, Sheba Medical Center, Tel Aviv University, Sackler School of Medicine, Tel Aviv, Israel
| | - Karl Skarvan
- Department of Anesthesiology, Surgical Intensive Care, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, Basel, Switzerland
| | - Giovanna Lurati Buse
- Department of Anesthesiology, Surgical Intensive Care, Prehospital Emergency Medicine and Pain Therapy, University Hospital Basel, Basel, Switzerland
| | - Manfred D. Seeberger
- University of Basel, Medical School, Basel, Switzerland; and Institute for Anesthesiology and Intensive Care Medicine, Klinik Hirslanden, Zurich, Switzerland
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Assaad S, Popescu WM. FOCUS in Thoracic Surgery: Does Feasibility Mean Functionality? J Cardiothorac Vasc Anesth 2017; 32:853-854. [PMID: 29169794 DOI: 10.1053/j.jvca.2017.10.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Sherif Assaad
- Yale School of Medicine, VA Connecticut Healthcare System, New Haven, CT
| | - Wanda M Popescu
- Yale School of Medicine, VA Connecticut Healthcare System, New Haven, CT
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Younan D, Griffin R, Reiff D, Richey J, Schinnerer E, Pittet JF, Zaky A. Echocardiographic correlates are associated with in-hospital mortality in trauma and burn patients. Am J Surg 2017; 214:798-803. [DOI: 10.1016/j.amjsurg.2017.02.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 01/27/2017] [Accepted: 02/05/2017] [Indexed: 11/17/2022]
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Younan D, Beasley TM, Pigott DC, Gibson CB, Gullett JP, Richey J, Pittet JF, Zaky A. The relationship between single and two-dimensional indices of left ventricular size using hemodynamic transesophageal echocardiography in trauma and burn patients. Crit Ultrasound J 2017; 9:20. [PMID: 29022204 PMCID: PMC5636773 DOI: 10.1186/s13089-017-0074-z] [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: 04/27/2017] [Accepted: 09/25/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Conventional echocardiographic technique for assessment of volume status and cardiac contractility utilizes left ventricular end-diastolic area (LVEDA) and fractional area of change (FAC), respectively. Our goal was to find a technically reliable yet faster technique to evaluate volume status and contractility by measuring left ventricular end-diastolic diameter (LVEDD) and fractional shortening (FS) in a cohort of mechanically ventilated trauma and burn patients using hemodynamic transesophageal echocardiographic (hTEE) monitoring. METHODS Retrospective chart review performed at trauma/burn intensive care unit (TBICU). Data on 88 mechanically ventilated surgical intensive care patients cared for between July 2013 and July 2015 were reviewed. Initial measurements of LVEDA, left ventricular end-systolic area (LVESA) and FAC were collected. Post-processing left ventricular end-systolic (LVESD) and end-diastolic diameters (LVEDD) were measured and fractional shortening (FS) was calculated. Two orthogonal measurements of LV diameter were obtained in transverse (Tr) and posteroanterior (PA) orientation. RESULTS There was a significant correlation between transverse and posteroanterior left ventricular diameter measurements in both systole and diastole. In systole, r = 0.92, p < 0.01 for LVESD-Tr (mean 23.47 mm, SD ± 6.77) and LVESD-PA (mean 24.84 mm, SD = 8.23). In diastole, r = 0.80, p < 0.01 for LVEDD-Tr (mean 37.60 mm, SD ± 6.45), and LVEDD-PA diameters (mean 42.24 mm, SD ± 7.97). Left ventricular area (LVEDA) also significantly correlated with left ventricular diameter LVEDD-Tr (r = 0.84, p < 0.01) and LVEDD-PA (r = 0.90, p < 0.01). Both transverse and PA measurements of fractional shortening were significantly (p < 0.0001) and similarly correlated with systolic function as measured by FAC. Bland-Altman analyses also indicated that the assessment of fractional shortening using left ventricular posteroanterior diameter measurement shows agreement with FAC. CONCLUSIONS Left ventricular diameter measurements are a reliable and technically feasible alternative to left ventricular area measurements in the assessment of cardiac filling and systolic function.
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Affiliation(s)
- Duraid Younan
- Department of Surgery, Division of Acute Care Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - T Mark Beasley
- Department of Biostatistics, University of Alabama at Birmingham, Birmingham, AL, USA.,Birmingham/Atlanta VA Geriatric Research, Education, & Clinical Center, Department of Veteran's Affairs, Birmingham, AL, USA
| | - David C Pigott
- Department of Emergency Medicine, University of Alabama at Birmingham, Birmingham, AL, USA.
| | - C Blayke Gibson
- Department of Emergency Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - John P Gullett
- Department of Emergency Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jeffrey Richey
- Department of Surgery, Division of Acute Care Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Jean-Francois Pittet
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Ahmed Zaky
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
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Arterial Pressure Variation in Elective Noncardiac Surgery: Identifying Reference Distributions and Modifying Factors. Anesthesiology 2017; 126:249-259. [PMID: 27906705 DOI: 10.1097/aln.0000000000001460] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND Assessment of need for intravascular volume resuscitation remains challenging for anesthesiologists. Dynamic waveform indices, including systolic and pulse pressure variation, are demonstrated as reliable measures of fluid responsiveness for mechanically ventilated patients. Despite widespread use, real-world reference distributions for systolic and pulse pressure variation values have not been established for euvolemic intraoperative patients. The authors sought to establish systolic and pulse pressure variation reference distributions and assess the impact of modifying factors. METHODS The authors evaluated adult patients undergoing general anesthetics for elective noncardiac surgery. Median systolic and pulse pressure variations during a 50-min postinduction period were noted for each case. Modifying factors including body mass index, age, ventilator settings, positioning, and hemodynamic management were studied via univariate and multivariable analyses. For systolic pressure variation values, effects of data entry method (manually entered vs. automated recorded) were similarly studied. RESULTS Among 1,791 cases, per-case median systolic and pulse pressure variation values formed nonparametric distributions. For each distribution, median values, interquartile ranges, and reference intervals (2.5th to 97.5th percentile) were, respectively, noted: these included manually entered systolic pressure variation (6.0, 5.0 to 7.0, and 3.0 to 11.0 mmHg), automated systolic pressure variation (4.7, 3.9 to 6.0, and 2.2 to 10.4 mmHg), and automated pulse pressure variation (7.0, 5.0 to 9.0, and 2.0 to 16.0%). Nonsupine positioning and preoperative β blocker were independently associated with altered systolic and pulse pressure variations, whereas ventilator tidal volume more than 8 ml/kg ideal body weight and peak inspiratory pressure more than 16 cm H2O demonstrated independent associations for systolic pressure variation only. CONCLUSIONS This study establishes real-world systolic and pulse pressure variation reference distributions absent in the current literature. Through a consideration of reference distributions and modifying factors, the authors' study provides further evidence for assessing intraoperative volume status and fluid management therapies.
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Alvarado Sánchez JI, Amaya Zúñiga WF, Monge García MI. Predictors to Intravenous Fluid Responsiveness. J Intensive Care Med 2017. [DOI: https://doi.org/10.1177/0885066617709434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Management with intravenous fluids can improve cardiac output in some surgical patients. Management with static preload indicators, such as central venous pressure and pulmonary artery occlusion pressure, has not demonstrated a suitable relationship with changes in the cardiac output induced by intravenous fluid therapy. Dynamic indicators, such as the variability of arterial pulse pressure or stroke volume variation, have demonstrated a suitable relationship. Since improvement in cardiac output does not guarantee an adequate perfusion pressure, in patients with hypotension, it is also necessary to know whether arterial pressure will also increase with intravenous fluid therapy. In this regard, the functional assessment of arterial load by dynamic arterial elastance could help to determine which patients will improve not only their cardiac output but also their mean arterial pressure.
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Affiliation(s)
- Jorge Iván Alvarado Sánchez
- Department of Physiology, Universidad Nacional De Colombia, Bogota, Colombia
- Department of Anesthesiology, Centro Policlínico del Olaya, Bogota, Colombia
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Alvarado Sánchez JI, Amaya Zúñiga WF, Monge García MI. Predictors to Intravenous Fluid Responsiveness. J Intensive Care Med 2017; 33:227-240. [PMID: 28506136 DOI: 10.1177/0885066617709434] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Management with intravenous fluids can improve cardiac output in some surgical patients. Management with static preload indicators, such as central venous pressure and pulmonary artery occlusion pressure, has not demonstrated a suitable relationship with changes in the cardiac output induced by intravenous fluid therapy. Dynamic indicators, such as the variability of arterial pulse pressure or stroke volume variation, have demonstrated a suitable relationship. Since improvement in cardiac output does not guarantee an adequate perfusion pressure, in patients with hypotension, it is also necessary to know whether arterial pressure will also increase with intravenous fluid therapy. In this regard, the functional assessment of arterial load by dynamic arterial elastance could help to determine which patients will improve not only their cardiac output but also their mean arterial pressure.
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Affiliation(s)
- Jorge Iván Alvarado Sánchez
- 1 Department of Physiology, Universidad Nacional De Colombia, Bogota, Colombia.,2 Department of Anesthesiology, Centro Policlínico del Olaya, Bogota, Colombia
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Evaluation of augmented pulse pressure variation using the Valsalva manoeuvre as a predictor of fluid responsiveness under open-chest conditions. Eur J Anaesthesiol 2017; 34:254-261. [DOI: 10.1097/eja.0000000000000613] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Elsadek WM, Elaela AHA, Nassar HM, Kamel MM, Mohamed AA, Ali HM. Sonographic Evaluation of Internal Jugular Vein Diameter and Cross-sectional Area Measurements in Correlation with Left Ventricular End Diastolic Area as a Tool for Perioperative Assessment of Volume Status in Pediatric Patients Undergoing Cardiac Surgery. Anesth Essays Res 2017; 11:453-457. [PMID: 28663640 PMCID: PMC5490115 DOI: 10.4103/0259-1162.194587] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Aim: The aim of this study is to compare the ultrasound estimation of the cross-sectional area (CSA) and diameter of internal jugular vein (IJV) with left ventricular end diastolic area (LVEDA) for the assessment of intravascular volume in pediatric patients during cardiac surgery. Patients and Methods: The CSA and diameter of the left IJV were defined, using ultrasound machine, and compared with LVEDA, estimated by transesophageal echo, in four times intervals (immediately after induction [T1], before the start of cardiopulmonary bypass [CPB] [T2], immediately after weaning of CPB [T3], and at the end of surgery before transfer to the Intensive Care Unit [T4]) as a tool for intravascular volume assessment in 16 pediatric patients undergoing cardiac surgery. Results: There was a poor correlation between IJV CSA and diameter with LVEDA. r values were 0.158, 0.265, 0.449, and 0.201 at the four time intervals (T1, T2, T3, and T4), respectively. Conclusion: Estimation of the CSA and diameter of the left IJV using ultrasound is not reliable and cannot be used alone to decide further management.
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Affiliation(s)
- Wafaa Mohamed Elsadek
- Department of Anesthesia, ICU and Pain Management, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Amal Hanfy Abo Elaela
- Department of Anesthesia, ICU and Pain Management, Faculty of Medicine, Cairo University, Cairo, Egypt
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Monnet X, Marik PE, Teboul JL. Prediction of fluid responsiveness: an update. Ann Intensive Care 2016; 6:111. [PMID: 27858374 PMCID: PMC5114218 DOI: 10.1186/s13613-016-0216-7] [Citation(s) in RCA: 312] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 11/08/2016] [Indexed: 12/17/2022] Open
Abstract
In patients with acute circulatory failure, the decision to give fluids or not should not be taken lightly. The risk of overzealous fluid administration has been clearly established. Moreover, volume expansion does not always increase cardiac output as one expects. Thus, after the very initial phase and/or if fluid losses are not obvious, predicting fluid responsiveness should be the first step of fluid strategy. For this purpose, the central venous pressure as well as other “static” markers of preload has been used for decades, but they are not reliable. Robust evidence suggests that this traditional use should be abandoned. Over the last 15 years, a number of dynamic tests have been developed. These tests are based on the principle of inducing short-term changes in cardiac preload, using heart–lung interactions, the passive leg raise or by the infusion of small volumes of fluid, and to observe the resulting effect on cardiac output. Pulse pressure and stroke volume variations were first developed, but they are reliable only under strict conditions. The variations in vena caval diameters share many limitations of pulse pressure variations. The passive leg-raising test is now supported by solid evidence and is more frequently used. More recently, the end-expiratory occlusion test has been described, which is easily performed in ventilated patients. Unlike the traditional fluid challenge, these dynamic tests do not lead to fluid overload. The dynamic tests are complementary, and clinicians should choose between them based on the status of the patient and the cardiac output monitoring technique. Several methods and tests are currently available to identify preload responsiveness. All have some limitations, but they are frequently complementary. Along with elements indicating the risk of fluid administration, they should help clinicians to take the decision to administer fluids or not in a reasoned way.
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Affiliation(s)
- Xavier Monnet
- Medical Intensive Care Unit, Bicêtre Hospital, Paris-Sud University Hospitals, Inserm UMR_S999, Paris-Sud University, 78, rue du Général Leclerc, 94 270, Le Kremlin-Bicêtre, France.
| | - Paul E Marik
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Jean-Louis Teboul
- Medical Intensive Care Unit, Bicêtre Hospital, Paris-Sud University Hospitals, Inserm UMR_S999, Paris-Sud University, 78, rue du Général Leclerc, 94 270, Le Kremlin-Bicêtre, France
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Mair S, Tschirdewahn J, Götz S, Frank J, Phillip V, Henschel B, Schultheiss C, Mayr U, Noe S, Treiber M, Schmid RM, Saugel B, Huber W. Applicability of stroke volume variation in patients of a general intensive care unit: a longitudinal observational study. J Clin Monit Comput 2016; 31:1177-1187. [PMID: 27817009 DOI: 10.1007/s10877-016-9951-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Accepted: 10/24/2016] [Indexed: 12/21/2022]
Abstract
Sinus rhythm (SR) and controlled mechanical ventilation (CV) are mandatory for the applicability of respiratory changes of the arterial curve such as stroke volume variation (SVV) to predict fluid-responsiveness. Furthermore, several secondary limitations including tidal volumes <8 mL/kg and SVV-values within the "gray zone" of 9-13% impair prediction of fluid-responsiveness by SVV. Therefore, we investigated the prevalence of these four conditions in general ICU-patients. This longitudinal observational study analyzed a prospectively maintained haemodynamic database including 4801 transpulmonary thermodilution and pulse contour analysis measurements of 278 patients (APACHE-II 21.0 ± 7.4). The main underlying diseases were cirrhosis (32%), sepsis (28%), and ARDS (17%). The prevalence of SR and CV was only 19.4% (54/278) in the first measurements (primary endpoint), 18.8% (902/4801) in all measurements and 26.5% (9/34) in measurements with MAP < 65 mmHg and CI < 2.5 L/min/m2 and vasopressor therapy. In 69.1% (192/278) of the first measurements and in 65.9% (3165/4801) of all measurements the patients had SR but did not have CV. In 1.8% (5/278) of the first measurements and in 2.5% (119/4801) of all measurements the patients had CV but lacked SR. In 9.7% (27/278) of the first measurements and in 12.8% (615/4801) of all measurements the patients did neither have SR nor CV. Only 20 of 278 (7.2%) of the first measurements and 8.2% of all measurements fulfilled both major criteria (CV, SR) and both minor criteria for the applicability of SVV. The applicability of SVV in ICU-patients is limited due to the absence of mandatory criteria during the majority of measurements.
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Affiliation(s)
- Sebastian Mair
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Julia Tschirdewahn
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Simon Götz
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Johanna Frank
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Veit Phillip
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Benedikt Henschel
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Caroline Schultheiss
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Ulrich Mayr
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Sebastian Noe
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Matthias Treiber
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Roland M Schmid
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany
| | - Bernd Saugel
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany
| | - Wolfgang Huber
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar, Technische Universität München, Ismaninger Strasse 22, 81675, Munich, Germany.
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Tusman G, Groisman I, Maidana GA, Scandurra A, Arca JM, Bohm SH, Suarez-Sipmann F. The Sensitivity and Specificity of Pulmonary Carbon Dioxide Elimination for Noninvasive Assessment of Fluid Responsiveness. Anesth Analg 2016; 122:1404-11. [PMID: 26505574 DOI: 10.1213/ane.0000000000001047] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND We sought to determine whether the response of pulmonary elimination of CO2 (VCO2) to a sudden increase in positive end-expiratory pressure (PEEP) could predict fluid responsiveness and serve as a noninvasive surrogate for cardiac index (CI). METHODS Fifty-two patients undergoing cardiovascular surgery were included in this study. By using a constant-flow ventilation mode, we performed a PEEP challenge of 1-minute increase in PEEP from 5 to 10 cm H2O. At PEEP of 5 cm H2O, patients were preloaded with 500 mL IV saline solution after which a second PEEP challenge was performed. Patients in whom fluid administration increased CI by ≥15% from the individual baseline value were defined as volume responders. Beat-by-beat CI was derived from arterial pulse contour analysis, and breath-by-breath VCO2 data were collected during the protocol. The sensitivity and specificity of VCO2 for detecting the fluid responders according to CI was performed by the receiver operating characteristic curves. RESULTS Twenty-one of 52 patients were identified as fluid responders (40%). The PEEP maneuver before fluid administration decreased CI from 2.65 ± 0.34 to 2.21 ± 0.32 L/min/m (P = 0.0011) and VCO2 from 150 ± 23 to 123 ± 23 mL/min (P = 0.0036) in responders, whereas the changes in CI and VCO2 were not significant in nonresponders. The PEEP challenge after fluid administration induced no significant changes in CI and VCO2, in neither responders nor nonresponders. PEEP-induced decreases in CI and VCO2 before fluid administration were well correlated (r = 0.75, P < 0.0001) but not thereafter. The area under the receiver operating characteristic curves for a PEEP-induced decrease in ΔCI and ΔVCO2 was 0.99, with a 95% confidence interval from 0.96 to 0.99 for ΔCI and from 0.97 to 0.99 for ΔVCO2. During the PEEP challenge, a decrease in VCO2 by 11% predicted fluid responsiveness with a sensitivity of 0.90 (95% confidence interval, 0.87-0.93) and a specificity of 0.95 (95% confidence interval, 0.92-0.98). CONCLUSIONS PEEP-induced changes in VCO2 predicted fluid responsiveness with accuracy in patients undergoing cardiac surgery.
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Affiliation(s)
- Gerardo Tusman
- From the *Department of Anesthesia, Hospital Privado de Comunidad, Mar del Plata, Buenos Aires, Argentina; †Electronic Department, Bioengineering Laboratory, School of Engineering, Mar del Plata University, Mar del Plata, Argentina; ‡Swisstom AG, Landquart, Switzerland; §Department of Surgical Sciences Section of Anesthesiology and Critical Care, Hedenstierna Laboratory, University Hospital, Uppsala Sweden; and ‖CIBERES, CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain
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Hendy A, Bubenek-Turconi ŞI. The Diagnosis and Hemodynamic Monitoring of Circulatory Shock: Current and Future Trends. ACTA ACUST UNITED AC 2016; 2:115-123. [PMID: 29967849 DOI: 10.1515/jccm-2016-0018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Accepted: 07/15/2016] [Indexed: 01/08/2023]
Abstract
Circulatory shock is a complex clinical syndrome encompassing a group of conditions that can arise from different etiologies and presented by several different hemodynamic patterns. If not corrected, cell dysfunction, irreversible multiple organ insufficiency, and death may occur. The four basic types of shock, hypovolemic, cardiogenic, obstructive and distributive, have features similar to that of hemodynamic shock. It is therefore essential, when monitoring hemodynamic shock, to making accurate clinical assessments which will guide and dictate appropriate management therapy. The European Society of Intensive Care has recently made recommendations for monitoring hemodynamic shock. The present paper discusses the issues raised in the new statements, including individualization of blood pressure targets, prediction of fluid responsiveness, and the use of echocardiography as the first means during the initial evaluation of circulatory shock. Also, the place of more invasive hemodynamic monitoring techniques and future trends in hemodynamic and metabolic monitoring in circulatory shock, will be debated.
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Affiliation(s)
- Adham Hendy
- Ph.D Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.,1st Department of Cardiovascular Anesthesia and Intensive Care, "C.C.Iliescu" Emergency Institute for Cardiovascular Diseases, Bucharest, Romania
| | - Şerban-Ion Bubenek-Turconi
- Ph.D Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.,1st Department of Cardiovascular Anesthesia and Intensive Care, "C.C.Iliescu" Emergency Institute for Cardiovascular Diseases, Bucharest, Romania
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Hutchinson KM, Shaw SP. A Review of Central Venous Pressure and Its Reliability as a Hemodynamic Monitoring Tool in Veterinary Medicine. Top Companion Anim Med 2016; 31:109-121. [PMID: 27968811 DOI: 10.1053/j.tcam.2016.08.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 08/04/2016] [Indexed: 01/05/2023]
Abstract
OBJECTIVE To review the current literature regarding central venous pressure (CVP) in veterinary patients pertaining to placement (of central line), measurement, interpretation, use in veterinary medicine, limitations, and controversies in human medicine. ETIOLOGY CVP use in human medicine is a widely debated topic, as numerous sources have shown poor correlation of CVP measurements to the volume status of a patient. Owing to the ease of placement and monitoring in veterinary medicine, CVP remains a widely used modality for evaluating the hemodynamic status of a patient. A thorough evaluation of the veterinary and human literature should be performed to evaluate the role of CVP measurements in assessing volume status in veterinary patients. DIAGNOSIS Veterinary patients that benefit from accurate CVP readings include those suffering from hypovolemic or septic shock, heart disease, or renal disease or all of these. Other patients that may benefit from CVP monitoring include high-risk anesthetic patients undergoing major surgery, trending of fluid volume status in critically ill patients, patients with continued shock, and patients that require rapid or large amounts of fluids. THERAPY The goal of CVP use is to better understand a patient's intravascular volume status, which would allow early goal-directed therapy. PROGNOSIS CVP would most likely continue to play an important role in the hemodynamic monitoring of the critically ill veterinary patient; however, when available, cardiac output methods should be considered the first choice for hemodynamic monitoring.
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Affiliation(s)
| | - Scott P Shaw
- VCA, Specialty Regional Medical Director; Northeast Los Angeles, CA, USA
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Thudium M, Klaschik S, Ellerkmann RK, Putensen C, Hilbert T. Is internal jugular vein extensibility associated with indices of fluid responsiveness in ventilated patients? Acta Anaesthesiol Scand 2016; 60:723-33. [PMID: 26869241 DOI: 10.1111/aas.12701] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 11/10/2015] [Accepted: 01/17/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND Ultrasound of the inferior vena cava provides rapid and non-invasive assessment of fluid responsiveness. We hypothesized that the extensibility of the internal jugular vein (IJV) as well reflects intravascular volume state. We assessed IJV dimensions together with pulse pressure variation (PPV) as dynamic index for fluid responsiveness in mechanically ventilated patients. METHODS Of 50 patients after cardiac surgery were assessed. Ultrasound of IJV dimensions as well as collection of hemodynamic data were performed in 30° and horizontal (0°) position, and the ventilator- and position-induced IJV extensibilities (E-IJV) were calculated. RESULTS Mean ventilator-induced E-IJV in 30° position was 56%, and mean PPV in 30° position was 13.7%. Changing the patient's position from 30° to 0° significantly reduced ventilator-induced E-IJV as well as PPV. Pearson's correlation test revealed significant association between ventilator-induced E-IJV and fluid responsiveness deduced from PPV in 0° position (r = 0.43, P < 0.005). An E-IJV threshold >5% identified patients with significantly elevated PPV values. CONCLUSION Ultrasound of the IJV and PPV as a dynamic index for fluid responsiveness can be associated under certain defined conditions. Whether or not ultrasound of the IJV can be useful to predict patient intravascular volume state should be further studied using invasive cardiac output monitoring.
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Affiliation(s)
- M. Thudium
- Department of Anesthesiology and Intensive Care Medicine; University Hospital Bonn; Bonn Germany
| | - S. Klaschik
- Department of Anesthesiology and Intensive Care Medicine; University Hospital Bonn; Bonn Germany
| | - R. K. Ellerkmann
- Department of Anesthesiology and Intensive Care Medicine; University Hospital Bonn; Bonn Germany
| | - C. Putensen
- Department of Anesthesiology and Intensive Care Medicine; University Hospital Bonn; Bonn Germany
| | - T. Hilbert
- Department of Anesthesiology and Intensive Care Medicine; University Hospital Bonn; Bonn Germany
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Systematic review including re-analyses of 1148 individual data sets of central venous pressure as a predictor of fluid responsiveness. Intensive Care Med 2016; 42:324-332. [DOI: 10.1007/s00134-015-4168-4] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 11/23/2015] [Indexed: 12/22/2022]
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47
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Huber W, Mair S, Götz SQ, Tschirdewahn J, Frank J, Höllthaler J, Phillip V, Schmid RM, Saugel B. A systematic database-derived approach to improve indexation of transpulmonary thermodilution-derived global end-diastolic volume. J Clin Monit Comput 2016; 31:143-151. [PMID: 26831297 DOI: 10.1007/s10877-016-9833-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Accepted: 01/20/2016] [Indexed: 12/28/2022]
Abstract
Global end-diastolic volume (GEDV) has been indexed to body surface area (BSA). However, data validating this indexation of GEDV are scarce. Furthermore, it has been suggested to index GEDV to "predicted BSA" based on predicted body weight. Therefore, we aimed to identify biometric parameters independently associated with GEDV. We analyzed a database including 3812 TPTD measurements in 234 patients treated in the ICU of a German university hospital. GEDVI indexed to actual BSA was significantly lower than GEDVI indexed to predicted BSA (748 ± 179 vs. 804 ± 190 mL/m2; p < 0.001). GEDV was independently associated with older age, male sex, height, and actual body weight. In a regression model for the estimation of GEDV, age and height were the most important parameters: Each year in age and each cm in height increased GEDV by 9 and 15 mL, respectively. In addition to height and weight also age and sex should be considered for indexation of GEDV.
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Affiliation(s)
- Wolfgang Huber
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, 81675, Munich, Germany
| | - Sebastian Mair
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, 81675, Munich, Germany
| | - Simon Q Götz
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, 81675, Munich, Germany
| | - Julia Tschirdewahn
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, 81675, Munich, Germany
| | - Johanna Frank
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, 81675, Munich, Germany
| | - Josef Höllthaler
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, 81675, Munich, Germany
| | - Veit Phillip
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, 81675, Munich, Germany
| | - Roland M Schmid
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, 81675, Munich, Germany
| | - Bernd Saugel
- II. Medizinische Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität München, Ismaninger Straße 22, 81675, Munich, Germany. .,Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
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Raghunathan K, Singh M, Lobo DN. Fluid management in abdominal surgery: what, when, and when not to administer. Anesthesiol Clin 2015; 33:51-64. [PMID: 25701928 DOI: 10.1016/j.anclin.2014.11.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The entire team (including anesthesiologists, surgeons, and intensive care physicians) must work together (before, during, and after abdominal surgery) to determine the optimal amount (quantity) and type (quality) of fluid necessary in the perioperative period. The authors present an overview of the basic principles that underlie fluid management, including evidence-based recommendations (where tenable) and a rational approach for when and what to administer.
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Affiliation(s)
- Karthik Raghunathan
- Anesthesiology Service, Durham VA Medical Center, Duke University Medical Center, Box 3094, Durham, NC 27710, USA.
| | - Mandeep Singh
- Division of Anesthesiology and Critical Care Medicine, Duke University Medical Center, 2301 Erwin Road, Durham, NC 27710, USA
| | - Dileep N Lobo
- Division of Gastrointestinal Surgery, Nottingham Digestive Diseases Centre National Institute for Health Research Biomedical Research Unit, Nottingham University Hospitals, Queen's Medical Centre, Nottingham NG7 2UH, UK
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Bronzwaer ASGT, Ouweneel DM, Stok WJ, Westerhof BE, van Lieshout JJ. Arterial Pressure Variation as a Biomarker of Preload Dependency in Spontaneously Breathing Subjects - A Proof of Principle. PLoS One 2015; 10:e0137364. [PMID: 26335939 PMCID: PMC4559442 DOI: 10.1371/journal.pone.0137364] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 08/15/2015] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE Pulse (PPV) and systolic pressure variation (SPV) quantify variations in arterial pressure related to heart-lung interactions and have been introduced as biomarkers of preload dependency to guide fluid treatment in mechanically ventilated patients. However, respiratory intra-thoracic pressure changes during spontaneous breathing are considered too small to affect preload and stroke volume sufficiently for the detection by PPV and/or SPV. This study addressed the effects of paced breathing and/or an external respiratory resistance on PPV and SPV in detecting preload dependency in spontaneously breathing subjects. METHODS In 10 healthy subjects, hemodynamic and respiratory parameters were evaluated during progressive central hypovolemia (head-up tilt). Breathing conditions were varied by manipulating breathing frequency and respiratory resistance. Subjects responding with a reduction in stroke volume index ≥15% were classified as having developed preload dependency. The ability for PPV and SPV to predict preload dependency was expressed by the area under the ROC curve (AUC). RESULTS A breathing frequency at 6/min increased the PPV (16±5% vs. 10±3%, p<0.001) and SPV (9±3% vs. 5±2%, p<0.001) which was further enhanced by an expiratory resistance (PPV: 19±3%, p = 0.025 and SPV: 10±2%, p = 0.047). These respiratory modifications, compared to free breathing, enhanced the predictive value of PPV with higher accuracy (AUC: 0.92 vs. 0.46). CONCLUSION Under conditions of progressive central hypovolemia, the application of an external respiratory resistance at a breathing frequency of 6/min enhanced PPV and SPV and is worth further study for detection of preload dependency from arterial pressure variations in non-ventilated subjects.
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Affiliation(s)
- Anne-Sophie G. T. Bronzwaer
- Department of Internal Medicine, Academic Medical Center, Amsterdam, the Netherlands
- Laboratory for Clinical Cardiovascular Physiology, Center for Heart Failure Research, Academic Medical Center, Amsterdam, the Netherlands
| | - Dagmar M. Ouweneel
- AMC Heart Center, Academic Medical Center, Amsterdam, the Netherlands
- Laboratory for Clinical Cardiovascular Physiology, Center for Heart Failure Research, Academic Medical Center, Amsterdam, the Netherlands
| | - Wim J. Stok
- Department of Anatomy, Embryology and Physiology, Academic Medical Center, Amsterdam, the Netherlands
- Laboratory for Clinical Cardiovascular Physiology, Center for Heart Failure Research, Academic Medical Center, Amsterdam, the Netherlands
| | - Berend E. Westerhof
- Laboratory for Clinical Cardiovascular Physiology, Center for Heart Failure Research, Academic Medical Center, Amsterdam, the Netherlands
- Edwards Lifesciences BMEYE, Amsterdam, the Netherlands
| | - Johannes J. van Lieshout
- Department of Internal Medicine, Academic Medical Center, Amsterdam, the Netherlands
- Department of Anatomy, Embryology and Physiology, Academic Medical Center, Amsterdam, the Netherlands
- Laboratory for Clinical Cardiovascular Physiology, Center for Heart Failure Research, Academic Medical Center, Amsterdam, the Netherlands
- MRC/Arthritis Research UK Centre for Musculoskeletal Ageing Research, Queen's Medical Centre, School of Life Sciences, University of Nottingham Medical School, Nottingham, United Kingdom
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Kawazoe Y, Nakashima T, Iseri T, Yonetani C, Ueda K, Fujimoto Y, Kato S. The impact of inspiratory pressure on stroke volume variation and the evaluation of indexing stroke volume variation to inspiratory pressure under various preload conditions in experimental animals. J Anesth 2015; 29:515-21. [PMID: 25771761 PMCID: PMC4543412 DOI: 10.1007/s00540-015-1995-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 02/26/2015] [Indexed: 12/29/2022]
Abstract
PURPOSE Stroke volume variation (SVV) measures fluid responsiveness, enabling optimal fluid management under positive pressure ventilation. We aimed to investigate the effect of peak inspiratory pressure (PIP) on SVV under various preload conditions in experimental animals and to ascertain whether SVV indexed to PIP decreases the effect. METHODS Mild and moderate hemorrhage models were created in nine anesthetized, mechanically ventilated beagle dogs by sequentially removing 10 and then an additional 10 ml/kg of blood, respectively. In all the animals, PIP was incrementally increased by 4 cmH2O, from 5 to 21 cmH2O. SVV was measured by arterial pulse contour analysis. Stroke volume was derived using a thermodilution method, and central venous pressure and mean arterial pressure were also measured. RESULTS SVV increased according to PIP with significant correlation at baseline, with mild hemorrhage and moderate hemorrhage. PIP regression coefficients at baseline and in the mild and moderate hemorrhage models were 0.59, 0.86, and 1.4, respectively. Two-way repeated-measures analysis of variance showed that PIP and the degree of hemorrhage had a significant interaction effect on SVV (p = 0.0016). SVV indexed to PIP reflected the hemorrhage status regardless of PIP changes ≥9 cmH2O. CONCLUSIONS PIP is significantly correlated with SVV, even under hypovolemia, and the effect is enhanced with decreasing preload volumes. Compared with SVV, the indexed SVV was less susceptible to higher inspiratory pressures.
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Affiliation(s)
- Yu Kawazoe
- Department of Emergency and Critical Care Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan,
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