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Pastene B, Bernat M, Baumstark K, Bezulier K, Gricourt Y, De Guibert JM, Charvet A, Colin M, Leone M, Zieleskiewicz L. OCOSO2: study protocol for a single-blinded, multicentre, randomised controlled trial assessing a central venous oxygen saturation-based goal-directed therapy to reduce postoperative complications in high-risk patients after elective major surgery. Trials 2023; 24:659. [PMID: 37821968 PMCID: PMC10568773 DOI: 10.1186/s13063-023-07689-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 09/29/2023] [Indexed: 10/13/2023] Open
Abstract
BACKGROUND Fluid loading-based goal-directed therapy is a cornerstone of anaesthesia management in major surgery. Its widespread application has contributed to a significant improvement in perioperative morbidity and mortality. In theory, only hypovolemic patients should receive fluid therapy. However, to achieve such a diagnosis, a surrogate marker of cardiac output adequacy must be used. Current methods of fluid loading-based goal-directed therapy do not assess cardiac output adequacy. Nowadays, new devices make it possible to continuously monitor central venous oxygen saturation (ScvO2) and therefore, to assess the adequacy of perioperative cardiac output during surgery. In major surgery, ScvO2-based goal-directed therapy can be used to enhance fluid therapy and improve patient outcomes. METHODS We designed a prospective, randomised, single-blinded, multicentre controlled superiority study with a 1:1 allocation ratio. Patients to be included will be high-risk major surgery patients (> 50 years old, ASA score > 2, major intra-abdominal or intra-thoracic surgery > 90 min). Patients in the control group will undergo standard fluid loading-based goal-directed therapy, as recommended by the guidelines. Patients in the intervention group will have ScvO2-based goal-directed therapy and receive fluid loading only if fluid responsiveness and cardiac output inadequacy are present. The primary outcome will be the Comprehensive Complication Index on day five postoperatively. DISCUSSION This study is the first to address the issue of cardiac output adequacy in goal-directed therapy. Our hypothesis is that cardiac output optimisation during major surgery achieved by continuous monitoring of the ScvO2 to guide fluid therapy will result in a reduction of postoperative complications as compared with current goal-directed fluid therapy practices. TRIAL REGISTRATION ClinicalTrials.gov. NCT03828565. Registered on February 4, 2019.
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Affiliation(s)
- Bruno Pastene
- Department of Anaesthesiology and Intensive Care Unit, Hôpital Nord, Hôpitaux Universitaires de Marseille, Marseille, France.
- Centre for Cardiovascular and Nutrition Research (C2VN), INRA, Aix Marseille University, INSERM, Marseille, France.
| | - Matthieu Bernat
- Department of Anaesthesiology and Intensive Care Unit, Hôpital Nord, Hôpitaux Universitaires de Marseille, Marseille, France
| | - Karine Baumstark
- Department of Epidemiology and Health Economy, Hôpitaux Universitaires de Marseille, Marseille, France
| | - Karine Bezulier
- Department of Anaesthesiology and Intensive Care Unit, Hôpital Nord, Hôpitaux Universitaires de Marseille, Marseille, France
| | - Yann Gricourt
- Department of Anaesthesiology and Pain Management, Centre Hospitalo-Universitaire Carémeau, Nîmes and Montpellier University 1, Nîmes, France
| | - Jean-Manuel De Guibert
- Department of Anaesthesiology and Intensive Care Unit, Institut Paoli Calmettes, Marseille, France
| | - Aude Charvet
- Department of Anaesthesiology and Intensive Care Unit, Hôpital Nord, Hôpitaux Universitaires de Marseille, Marseille, France
| | - Manon Colin
- Department of Anaesthesiology and Intensive Care Unit, Hôpital Nord, Hôpitaux Universitaires de Marseille, Marseille, France
| | - Marc Leone
- Department of Anaesthesiology and Intensive Care Unit, Hôpital Nord, Hôpitaux Universitaires de Marseille, Marseille, France
- Centre for Cardiovascular and Nutrition Research (C2VN), INRA, Aix Marseille University, INSERM, Marseille, France
| | - Laurent Zieleskiewicz
- Department of Anaesthesiology and Intensive Care Unit, Hôpital Nord, Hôpitaux Universitaires de Marseille, Marseille, France
- Centre for Cardiovascular and Nutrition Research (C2VN), INRA, Aix Marseille University, INSERM, Marseille, France
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Yang TX, Tan AY, Leung WH, Chong D, Chow YF. Restricted Versus Liberal Versus Goal-Directed Fluid Therapy for Non-vascular Abdominal Surgery: A Network Meta-Analysis and Systematic Review. Cureus 2023; 15:e38238. [PMID: 37261162 PMCID: PMC10226838 DOI: 10.7759/cureus.38238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2023] [Indexed: 06/02/2023] Open
Abstract
Optimal perioperative fluid management is crucial, with over- or under-replacement associated with complications. There are many strategies for fluid therapy, including liberal fluid therapy (LFT), restrictive fluid therapy (RFT) and goal-directed fluid therapy (GDT), without a clear consensus as to which is better. We aimed to find out which is the more effective fluid therapy option in adult surgical patients undergoing non-vascular abdominal surgery in the perioperative period. This study is a systematic review and network meta-analysis (NMA) with node-splitting analysis of inconsistency, sensitivity analysis and meta-regression. We conducted a literature search of Pubmed, Cochrane Library, EMBASE, Google Scholar and Web of Science. Only studies comparing restrictive, liberal and goal-directed fluid therapy during the perioperative phase in major non-cardiac surgery in adult patients will be included. Trials on paediatric patients, obstetric patients and cardiac surgery were excluded. Trials that focused on goal-directed therapy monitoring with pulmonary artery catheters and venous oxygen saturation (SvO2), as well as those examining purely biochemical and laboratory end points, were excluded. A total of 102 randomised controlled trials (RCTs) and 78 studies (12,100 patients) were included. NMA concluded that goal-directed fluid therapy utilising FloTrac was the most effective intervention in reducing the length of stay (LOS) (surface under cumulative ranking curve (SUCRA) = 91%, odds ratio (OR) = -2.4, 95% credible intervals (CrI) = -3.9 to -0.85) and wound complications (SUCRA = 86%, OR = 0.41, 95% CrI = 0.24 to 0.69). Goal-directed fluid therapy utilising pulse pressure variation was the most effective in reducing the complication rate (SUCRA = 80%, OR = 0.25, 95% CrI = 0.047 to 1.2), renal complications (SUCRA = 93%, OR = 0.23, 95% CrI = 0.045 to 1.0), respiratory complications (SUCRA = 74%, OR = 0.42, 95% CrI = 0.053 to 3.6) and cardiac complications (SUCRA = 97%, OR = 0.067, 95% CrI = 0.0058 to 0.57). Liberal fluid therapy was the most effective in reducing the mortality rate (SUCRA = 81%, OR = 0.40, 95% CrI = 0.12 to 1.5). Goal-directed therapy utilising oesophageal Doppler was the most effective in reducing anastomotic leak (SUCRA = 79%, OR = 0.45, 95% CrI = 0.12 to 1.5). There was no publication bias, but moderate to substantial heterogeneity was found in all networks. In preventing different complications, except mortality, goal-directed fluid therapy was consistently more highly ranked and effective than standard (SFT), liberal or restricted fluid therapy. The evidence grade was low quality to very low quality for all the results, except those for wound complications and anastomotic leak.
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Affiliation(s)
- Timothy Xianyi Yang
- Department of Anaesthesiology and Operating Theatre Services, Queen Elizabeth Hospital, Hong Kong, HKG
| | - Adrian Y Tan
- Department of Anaesthesiology and Operating Theatre Services, Queen Elizabeth Hospital, Hong Kong, HKG
| | - Wesley H Leung
- Department of Anaesthesiology and Operating Theatre Services, Queen Elizabeth Hospital, Hong Kong, HKG
| | - David Chong
- Department of Anaesthesiology and Operating Theatre Services, Queen Elizabeth Hospital, Hong Kong, HKG
| | - Yu Fat Chow
- Department of Anaesthesiology and Operating Theatre Services, Queen Elizabeth Hospital, Hong Kong, HKG
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Tong X, Feng X, Duan C, Liu A. Association between central venous pressure measurement and outcomes in critically ill patients with severe coma. Eur J Med Res 2023; 28:35. [PMID: 36653881 PMCID: PMC9847142 DOI: 10.1186/s40001-022-00981-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 12/30/2022] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND The use of central venous pressure (CVP) measurements among (intensive care unit) ICU patients with severe coma has been questioned. This study aimed to investigate the application value of CVP in this population. METHODS Data stored in the ICU Collaborative Research Database (eICU-CRD) and Medical Information Mart for Intensive Care III (MIMIC-III) database were reviewed. Critically ill patients with a Glasgow Coma Scale (GCS) score of 3-8 were included. The primary outcome was the in-hospital mortality rate. The statistical approaches used included multivariable Cox regression, propensity score matching (PSM), inverse probability treatment weighting (IPTW), stabilized IPTW, and restricted cubic splines (RCS) to ensure the robustness of our findings. RESULTS In total, 7386 patients were included in the study. Early CVP measurement was independently associated with in-hospital mortality [hazard ratio, 0.63; p < 0.001] in patients with severe-to-moderate coma. This result was robust in the PSM, sIPTW, and IPTW cohorts. For all patients with CVP measurements, the RCS curves showed that the risk of in-hospital mortality increased as the initial CVP time was delayed. In addition, early CVP measurement was significantly associated with lower ICU mortality, 28-day mortality, and 365-day mortality and a significantly higher number of ventilator-free days. CONCLUSION Early CVP measurement could improve clinical outcomes in critically ill patients with severe coma.
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Affiliation(s)
- Xin Tong
- grid.24696.3f0000 0004 0369 153XBeijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050 China
| | - Xin Feng
- grid.417404.20000 0004 1771 3058Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China On Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280 Guangdong China ,grid.484195.5Guangdong Provincial Key Laboratory On Brain Function Repair and Regeneration, Guangdong, 510280 China
| | - Chuanzhi Duan
- grid.417404.20000 0004 1771 3058Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China On Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280 Guangdong China ,grid.484195.5Guangdong Provincial Key Laboratory On Brain Function Repair and Regeneration, Guangdong, 510280 China
| | - Aihua Liu
- grid.24696.3f0000 0004 0369 153XBeijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050 China ,China National Clinical Research Centre for Neurological Diseases, Beijing, 100070 China
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Fidan S, Zengin SÜ, Orhon M, Umuroğlu T. Comparative efficacy of finger versus forehead Plethysmographic Variability Index monitoring in pediatric surgical patients. Paediatr Anaesth 2023; 33:52-58. [PMID: 36168810 DOI: 10.1111/pan.14561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 09/06/2022] [Accepted: 09/13/2022] [Indexed: 01/20/2023]
Abstract
INTRODUCTION The Plethysmographic Variability Index can be measured by both finger and forehead probes. Vasoconstriction may jeopardize the reliability of finger PVI measurements in pediatric patients undergoing surgery. However, forehead vasculature exhibits more marked resistance to alterations in the vasomotor tonus. OBJECTIVE Our aim was to compare the Plethysmographic Variability Index measured via finger or forehead probes in mechanically ventilated pediatric surgery patients in terms of their ability to predict fluid responsiveness as well as to determine the best cut-off values for these two measurements. MATERIALS AND METHODS A total of 50 pediatric patients undergoing minor elective surgery were included after provision of parental consent and ethics committee approval. Perfusion index measured at the finger or forehead and Plethysmographic Variability Index monitoring comprised the primary assessments. Hemodynamic parameters monitored included perfusion index, Plethysmographic Variability Index, and cardiac output. A ≥ 15% increase in cardiac output following passive leg raise maneuver was considered to show fluid responsiveness. Two groups were defined based on fluid responsiveness: Group R (responsive) and Group NR (non-responsive). Student's t-test, Mann-Whitney U test, DeLong test, and ROC were used for statistical analysis. RESULTS The area under curve for finger and forehead Plethysmographic Variability Index prior to passive leg raise maneuver were 0.699 (p = .011) and 0.847 (p < .001), respectively. The sensitivity for finger and forehead measurements at a cut-off value of ≤14% was 92.9% and 96.4%, and 45.4% and 72.7%, respectively. CONCLUSION Although forehead and finger Plethysmographic Variability Index monitoring were similarly sensitive in predicting fluid responsiveness in pediatric surgical patients, the former method provided higher specificity. The best cut-off value for PVI measurements with forehead and finger probes was found to be 14%.
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Affiliation(s)
- Seyfullah Fidan
- Department of Anesthesiology and Reanimation, Marmara University School of Medicine, Istanbul, Turkey
| | - Seniyye Ülgen Zengin
- Department of Anesthesiology and Reanimation, Marmara University School of Medicine, Istanbul, Turkey
| | - Meliha Orhon
- Department of Anesthesiology and Reanimation, Marmara University School of Medicine, Istanbul, Turkey
| | - Tümay Umuroğlu
- Department of Anesthesiology and Reanimation, Marmara University School of Medicine, Istanbul, Turkey
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Comparison of Goal-Directed Fluid Therapy using LiDCOrapid System with Regular Fluid Therapy in Patients Undergoing Spine Surgery as a Randomised Clinical Trial. Rom J Anaesth Intensive Care 2022; 28:1-9. [PMID: 36846537 PMCID: PMC9949010 DOI: 10.2478/rjaic-2021-0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023] Open
Abstract
Background Goal-directed fluid therapy (GDFT) is a new concept to describe the cardiac output (CO) and stroke volume variation to guide intravenous fluid administration during surgery. LiDCOrapid (LiDCO, Cardiac Sensor System, UK Company Regd 2736561, VAT Regd 672475708) is a minimally invasive monitor that estimates the responsiveness of CO versus fluid infusion. We intend to find whether GDFT using the LiDCOrapid system can decrease the volume of intraoperative fluid therapy and facilitate recovery in patients undergoing posterior fusion spine surgeries in comparison to regular fluid therapy. Methods This study is a randomised clinical trial, and the design was parallel. Inclusion criteria for participants in this study were patients with comorbidities such as diabetes mellitus, hypertension, and ischemic heart disease undergoing spine surgery; exclusion criteria were patients with irregular heart rhythm or severe valvular heart disease. Forty patients with a previous history of medical comorbidities undergoing spine surgery were randomly and evenly assigned to receive either LiDCOrapid guided fluid therapy or regular fluid therapy. The volume of infused fluid was the primary outcome. The amount of bleeding, number of patients who needed packed red blood cell transfusion, base deficit, urine output, days of hospital length of stay and intensive care unit (ICU) admission, and time needed to start eating solids were monitored as secondary outcomes. Results The volume of infused crystalloid and urinary output in the LiDCO group was significantly lower than that of the control group (p = .001). Base deficit at the end of surgery was significantly better in the LiDCO group (p < .001). The duration of hospital length of stay in the LiDCO group was significantly shorter (p = .027), but the duration of ICU admission was not significantly different between the two groups. Conclusion Goal-directed fluid therapy using the LiDCOrapid system reduced the volume of intraoperative fluid therapy.
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Turkut N, Altun D, Canbolat N, Uzuntürk C, Şen C, Çamcı AE. Comparison of Stroke Volume Variation-based goal-directed Therapy Versus Standard Fluid Therapy in Patients Undergoing Head and Neck Surgery: A Randomized Controlled Study. Balkan Med J 2022; 39:351-357. [PMID: 35965423 PMCID: PMC9469670 DOI: 10.4274/balkanmedj.galenos.2022.2022-1-88] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Background: Aims: Study Design: Methods: Results: Conclusion:
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Tang R, Peng J, Wang D. Central Venous Pressure Measurement Is Associated With Improved Outcomes in Patients With or at Risk for Acute Respiratory Distress Syndrome: An Analysis of the Medical Information Mart for Intensive Care IV Database. Front Med (Lausanne) 2022; 9:858838. [PMID: 35419383 PMCID: PMC8995425 DOI: 10.3389/fmed.2022.858838] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 02/23/2022] [Indexed: 11/21/2022] Open
Abstract
Background Central venous pressure (CVP) monitoring is widely used in the intensive care unit (ICU). However, the formal utility of CVP measurement to altering patient outcomes among ICU patients with or at risk for acute respiratory distress syndrome (ARDS) has never been investigated. Our study aimed to explore the association of CVP measurement with 28-day mortality specifically in that population. Methods This study was based on the Medical Information Mart for Intensive Care IV (MIMIC-IV) database. Patients were divided into CVP and no CVP groups according to whether they had CVP measurement within 24 h of admission to the ICU. The primary outcome was 28-day mortality. Multivariate regression was used to elucidate the association between CVP measurement and 28-day mortality, and propensity score matching (PSM) and propensity score-based overlap weighting (OW) were employed to verify the stability of our results. Results A total of 10,198 patients with or at risk for ARDS were included in our study, of which 4,647 patients (45.6%) belonged to the CVP group. Multivariate logistic regression showed that the early measurement of CVP was independently associated with lower 28-day mortality (OR: 0.49; 95% CI: 0.42–0.57; p < 0.001). This association remained robust after PSM and OW (both p < 0.001). Patients in the CVP group had shorter ICU stay, lower in-hospital mortality, more fluid on day 1 and higher clearance of blood lactate than those in the no CVP group. Conclusion Early CVP measurement is associated with an improvement in 28-day mortality among a general population of critically ill patients with or at risk for ARDS.
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Affiliation(s)
- Rui Tang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Junnan Peng
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Daoxin Wang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Agerskov M, Sørensen H, Højlund J, Secher NH, Foss NB. Fluid-responsiveness, blood volume and perfusion in preoperative haemodynamic optimisation of hip fracture patients; a prospective observational study. Acta Anaesthesiol Scand 2022; 66:660-673. [PMID: 35396854 DOI: 10.1111/aas.14070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/27/2022] [Accepted: 04/03/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Preoperative resuscitation strategies in patients with hip fracture (HF) are lacking. We aimed to investigate fluid-responsiveness, peripheral perfusion index (PPI) and blood volume (BV)-status in patients with HF undergoing resuscitation in the preoperative phase. METHODS In a prospective observational study, we evaluated preoperative fluid-responsiveness, indices of perfusion and BV before and after lumbar epidural analgesia in 50 patients with HF shortly after admittance. RESULTS Initially, 18 (36%) patients were fluid-responsive (≥10% increased SV in response to 250 ml fluid bolus) and 13 (26%) presented hypovolaemia (deviation of measured BV from estimated BV ≤ 0.9). According to fluid-responsiveness, no difference in absolute values of cardiac index (CI) (2.7 L [2.1-3.3] vs. 2.8 L [2.3-3.4], p = .5) was seen, but cardiac output (CO) rose significantly in the hypovolaemic patients: 9% [5-18] vs. 1% [-3-7], p = .004. After epidural analgesia, 26 (52%) patients were again fluid-responsive and 15 (30%) were hypovolaemic. CI was now significantly lower in fluid-responsive patients (2.2 L [1.7-2.7] vs. 2.9 L [2.3-3.5], p = .001). Prior to epidural analgesia, no significant trend towards hypovolaemic patients having lower indices of perfusion was seen. After epidural analgesia, more patients with hypovolaemia presented with PPI≤1.5 (8 (53%) vs. 3 (9%), p = .001) and absolute values of PPI were also significantly lower if IBV was low (1.4 [0.9-3.2] vs. 3.2 [2.4-4.8], p = .01). PPI correlated with hypovolaemia after epidural analgesia (rho 0.4 [0.1-0.7], p = .007). CONCLUSIONS Preoperative fluid-responsivity in HF patients might be attributable to elements of hypovolaemia and sympathetic compensatory ability conjointly, confounding the use of SV-guided resuscitation. PPI could be associated with BV, which may support clinicians during perioperative haemodynamic optimisation.
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Affiliation(s)
- Marianne Agerskov
- Department of Anesthesiology and Intensive Care Hvidovre Hospital, University of Copenhagen Copenhagen Denmark
| | - Henrik Sørensen
- Department of Anaesthesiology Centre for Cancer and Organ Diseases, Rigshospitalet, University of Copenhagen Copenhagen Denmark
| | - Jakob Højlund
- Department of Anesthesiology and Intensive Care Hvidovre Hospital, University of Copenhagen Copenhagen Denmark
| | - Niels H. Secher
- Department of Anaesthesiology Centre for Cancer and Organ Diseases, Rigshospitalet, University of Copenhagen Copenhagen Denmark
| | - Nicolai Bang Foss
- Department of Anesthesiology and Intensive Care Hvidovre Hospital, University of Copenhagen Copenhagen Denmark
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Johnson AP, Fallon T, Thorgesen D. Dynamic and Static Cardiac Function Measurements During Sepsis. Crit Care Nurse 2022; 42:76-78. [PMID: 35362072 DOI: 10.4037/ccn2022643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Alexander P Johnson
- Alexander P. Johnson is a critical care clinical nurse specialist at Northwestern Medicine Huntley Hospital, Huntley, Illinois
| | - Tara Fallon
- Tara Fallon is a critical care manager, Northwestern Medicine Central DuPage Hospital, Winfield, Illinois
| | - Deborah Thorgesen
- Deborah Thorgesen is a clinical nurse manager, Northwestern Medicine Huntley Hospital
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Jessen MK, Vallentin MF, Holmberg MJ, Bolther M, Hansen FB, Holst JM, Magnussen A, Hansen NS, Johannsen CM, Enevoldsen J, Jensen TH, Roessler LL, Lind PC, Klitholm MP, Eggertsen MA, Caap P, Boye C, Dabrowski KM, Vormfenne L, Høybye M, Henriksen J, Karlsson CM, Balleby IR, Rasmussen MS, Pælestik K, Granfeldt A, Andersen LW. Goal-directed haemodynamic therapy during general anaesthesia for noncardiac surgery: a systematic review and meta-analysis. Br J Anaesth 2022; 128:416-433. [PMID: 34916049 PMCID: PMC8900265 DOI: 10.1016/j.bja.2021.10.046] [Citation(s) in RCA: 48] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/28/2021] [Accepted: 10/14/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND During general anaesthesia for noncardiac surgery, there remain knowledge gaps regarding the effect of goal-directed haemodynamic therapy on patient-centred outcomes. METHODS Included clinical trials investigated goal-directed haemodynamic therapy during general anaesthesia in adults undergoing noncardiac surgery and reported at least one patient-centred postoperative outcome. PubMed and Embase were searched for relevant articles on March 8, 2021. Two investigators performed abstract screening, full-text review, data extraction, and bias assessment. The primary outcomes were mortality and hospital length of stay, whereas 15 postoperative complications were included based on availability. From a main pool of comparable trials, meta-analyses were performed on trials with homogenous outcome definitions. Certainty of evidence was evaluated using Grading of Recommendations, Assessment, Development, and Evaluations (GRADE). RESULTS The main pool consisted of 76 trials with intermediate risk of bias for most outcomes. Overall, goal-directed haemodynamic therapy might reduce mortality (odds ratio=0.84; 95% confidence interval [CI], 0.64 to 1.09) and shorten length of stay (mean difference=-0.72 days; 95% CI, -1.10 to -0.35) but with low certainty in the evidence. For both outcomes, larger effects favouring goal-directed haemodynamic therapy were seen in abdominal surgery, very high-risk surgery, and using targets based on preload variation by the respiratory cycle. However, formal tests for subgroup differences were not statistically significant. Goal-directed haemodynamic therapy decreased risk of several postoperative outcomes, but only infectious outcomes and anastomotic leakage reached moderate certainty of evidence. CONCLUSIONS Goal-directed haemodynamic therapy during general anaesthesia might decrease mortality, hospital length of stay, and several postoperative complications. Only infectious postoperative complications and anastomotic leakage reached moderate certainty in the evidence.
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Affiliation(s)
- Marie K Jessen
- Research Center for Emergency Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Mikael F Vallentin
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Prehospital Emergency Medical Services, Central Denmark Region, Aarhus, Denmark
| | - Mathias J Holmberg
- Research Center for Emergency Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Cardiology, Viborg Regional Hospital, Viborg, Denmark
| | - Maria Bolther
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | | | - Johanne M Holst
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | | | - Niklas S Hansen
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | | | | | - Thomas H Jensen
- Department of Internal Medicine, University Hospital of North Norway, Narvik, Norway
| | - Lara L Roessler
- Department of Emergency Medicine, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Peter C Lind
- Department of Surgical Gastroenterology, Aalborg University Hospital, Aalborg, Denmark
| | - Maibritt P Klitholm
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Mark A Eggertsen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Philip Caap
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Caroline Boye
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Karol M Dabrowski
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Lasse Vormfenne
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Maria Høybye
- Research Center for Emergency Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Jeppe Henriksen
- Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Carl M Karlsson
- Department of Anesthesiology and Intensive Care, Aalborg University Hospital, Aalborg, Denmark
| | - Ida R Balleby
- National Hospital of the Faroe Islands, Torshavn, Faroe Islands, Denmark
| | - Marie S Rasmussen
- Department of Anesthesiology and Intensive Care, Aalborg University Hospital, Aalborg, Denmark
| | - Kim Pælestik
- Department of Anesthesiology and Intensive Care, Viborg Regional Hospital, Viborg, Denmark
| | - Asger Granfeldt
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark
| | - Lars W Andersen
- Research Center for Emergency Medicine, Aarhus University and Aarhus University Hospital, Aarhus, Denmark; Department of Clinical Medicine, Aarhus University, Aarhus, Denmark; Prehospital Emergency Medical Services, Central Denmark Region, Aarhus, Denmark; Department of Anesthesiology and Intensive Care, Aarhus University Hospital, Aarhus, Denmark.
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Alvarado Sánchez JI, Caicedo Ruiz JD, Diaztagle Fernández JJ, Ospina Tascon GA, Monge Garcia MI, Ruiz Narvaez GA, Cruz Martínez LE. Changes of operative performance of pulse pressure variation as a predictor of fluid responsiveness in endotoxin shock. Sci Rep 2022. [DOI: https://doi.org/10.1038/s41598-022-06488-x] [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] Open
Abstract
AbstractSeveral limitations regarding pulse pressure variation (PPV) use have been reported. Our aim was to describe changes in the PPV operative performance as a predictor of fluid responsiveness during the development of a swine endotoxin shock model and to assess hemodynamic variables associated with PPV changes. A swine porcine endotoxin shock model was established (Escherichia Coli 055:B5 endotoxin) in 7 pigs, and 3 pigs were included in the control group. The endotoxin was infused until the mean arterial pressure (MAP) dropped below 50 mmHg (TH0); then, the model animal was reanimated with fluids and vasopressors. We performed fluid challenges every hour for 6 h. ROC curve analysis and a linear mixed model were performed. The area under the curve of PPV decreased from 0.95 (0.81–1.00) to 0.60 (0.17–1.00) at TH0. Its cutoff increased from 10.5 to 22.00% at TH0. PPV showed an inverse relationship with stroke volume, mean systemic filling pressure, MAP, and systemic vascular resistance (SVR) (p < 0.001, AIC = 111.85). The PPV operative performance as a predictor of fluid responsiveness decreased with the progression of shock. This could lead to an inverse association between PPV and the following variables: MAP and SVR.
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12
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Alvarado Sánchez JI, Caicedo Ruiz JD, Diaztagle Fernández JJ, Ospina Tascon GA, Monge Garcia MI, Ruiz Narvaez GA, Cruz Martínez LE. Changes of operative performance of pulse pressure variation as a predictor of fluid responsiveness in endotoxin shock. Sci Rep 2022; 12:2590. [PMID: 35173214 PMCID: PMC8850593 DOI: 10.1038/s41598-022-06488-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 01/31/2022] [Indexed: 11/09/2022] Open
Abstract
Several limitations regarding pulse pressure variation (PPV) use have been reported. Our aim was to describe changes in the PPV operative performance as a predictor of fluid responsiveness during the development of a swine endotoxin shock model and to assess hemodynamic variables associated with PPV changes. A swine porcine endotoxin shock model was established (Escherichia Coli 055:B5 endotoxin) in 7 pigs, and 3 pigs were included in the control group. The endotoxin was infused until the mean arterial pressure (MAP) dropped below 50 mmHg (TH0); then, the model animal was reanimated with fluids and vasopressors. We performed fluid challenges every hour for 6 h. ROC curve analysis and a linear mixed model were performed. The area under the curve of PPV decreased from 0.95 (0.81–1.00) to 0.60 (0.17–1.00) at TH0. Its cutoff increased from 10.5 to 22.00% at TH0. PPV showed an inverse relationship with stroke volume, mean systemic filling pressure, MAP, and systemic vascular resistance (SVR) (p < 0.001, AIC = 111.85). The PPV operative performance as a predictor of fluid responsiveness decreased with the progression of shock. This could lead to an inverse association between PPV and the following variables: MAP and SVR.
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Affiliation(s)
- Jorge Iván Alvarado Sánchez
- Department of Physiological Sciences, Faculty of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia. .,Department of Anaesthesiology, Centro Policlínico del Olaya, Bogotá, Colombia.
| | - Juan Daniel Caicedo Ruiz
- Department of Physiological Sciences, Faculty of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Juan Jose Diaztagle Fernández
- Department of Physiological Sciences, Faculty of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia.,Department of Internal Medicine, Hospital de San José, Fundación Universitaria de Ciencias de la Salud, Bogotá, Colombia
| | | | | | | | - Luis Eduardo Cruz Martínez
- Department of Physiological Sciences, Faculty of Medicine, Universidad Nacional de Colombia, Bogotá, Colombia.,Department of Internal Medicine, Hospital de San José, Fundación Universitaria de Ciencias de la Salud, Bogotá, Colombia
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13
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Giglio M, Biancofiore G, Corriero A, Romagnoli S, Tritapepe L, Brienza N, Puntillo F. Perioperative goal-directed therapy and postoperative complications in different kind of surgical procedures: an updated meta-analysis. JOURNAL OF ANESTHESIA, ANALGESIA AND CRITICAL CARE (ONLINE) 2021; 1:26. [PMID: 37386648 DOI: 10.1186/s44158-021-00026-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 11/25/2021] [Indexed: 07/01/2023]
Abstract
BACKGROUND Goal-directed therapy (GDT) aims to assure tissue perfusion, by optimizing doses and timing of fluids, inotropes, and vasopressors, through monitoring of cardiac output and other basic hemodynamic parameters. Several meta-analyses confirm that GDT can reduce postoperative complications. However, all recent evidences focused on high-risk patients and on major abdominal surgery. OBJECTIVES The aim of the present meta-analysis is to investigate the effect of GDT on postoperative complications (defined as number of patients with a least one postoperative complication) in different kind of surgical procedures. DATA SOURCES Randomized controlled trials (RCTs) on perioperative GDT in adult surgical patients were included. The primary outcome measure was complications, defined as number of patients with at least one postoperative complication. A subgroup-analysis was performed considering the kind of surgery: major abdominal (including also major vascular), only vascular, only orthopedic surgery. and so on. STUDY APPRAISAL AND SYNTHESIS METHODS Meta-analytic techniques (analysis software RevMan, version 5.3.5, Cochrane Collaboration, Oxford, England, UK) were used to combine studies using odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS In 52 RCTs, 6325 patients were enrolled. Of these, 3162 were randomized to perioperative GDT and 3153 were randomized to control. In the overall population, 2836 patients developed at least one complication: 1278 (40%) were randomized to perioperative GDT, and 1558 (49%) were randomized to control. Pooled OR was 0.60 and 95% CI was 0.49-0.72. The sensitivity analysis confirmed the main result. The analysis enrolling major abdominal patients showed a significant result (OR 0.72, 95% CI 0.59-0.87, p = 0.0007, 31 RCTs, 4203 patients), both in high- and low-risk patients. A significant effect was observed in those RCTs enrolling exclusively orthopedic procedures (OR 0.53, 95% CI 0.35-0.80, p = 0.002, 7 RCTs, 650 patients. Also neurosurgical procedures seemed to benefit from GDT (OR 0.40, 95% CI 0.21-0.78, p = 0.008, 2 RCTs, 208 patients). In both major abdominal and orthopedic surgery, a strategy adopting fluids and inotropes yielded significant results. The total volume of fluid was not significantly different between the GDT and the control group. CONCLUSIONS AND IMPLICATIONS OF KEY FINDINGS The present meta-analysis, within the limits of the existing data, the clinical and statistical heterogeneity, suggests that GDT can reduce postoperative complication rate. Moreover, the beneficial effect of GDT on postoperative morbidity is significant on major abdominal, orthopedic and neurosurgical procedures. Several well-designed RCTs are needed to further explore the effect of GDT in different kind of surgeries.
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Affiliation(s)
- Mariateresa Giglio
- Anesthesia and Intensive Care Unit, Policlinico di Bari, Piazza G. Cesare, 11, 70124, Bari, Italy.
| | | | - Alberto Corriero
- Anesthesia and Intensive Care Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
| | - Stefano Romagnoli
- Anesthesia, Intensive Care Unit and Pain Unit, Department of Interdisciplinary Medicine, University of Bari, Bari, Italy
| | - Luigi Tritapepe
- Dipartimento di Anestesia e Rianimazione, Azienda Ospedaliero-Universitaria Careggi, Firenze, Italy
| | - Nicola Brienza
- Direttore UOC Anestesia e Rianimazione, AO San Camillo Forlanini-Roma, Rome, Italy
| | - Filomena Puntillo
- Direttore UOC Anestesia e Rianimazione, AO San Camillo Forlanini-Roma, Rome, Italy
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Ramsingh D, Staab J, Flynn B. Application of perioperative hemodynamics today and potentials for tomorrow. Best Pract Res Clin Anaesthesiol 2021; 35:551-564. [PMID: 34801217 DOI: 10.1016/j.bpa.2021.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 01/27/2021] [Indexed: 11/18/2022]
Abstract
Hemodynamic (HD) monitoring remains integral to the assessment and management of perioperative and critical care patients. This review article seeks to provide an update on the different types of flow-guided HD monitoring technologies available, highlight their limitations, and review the therapies associated with the application of these technologies. Additionally, we will also comment on the expanding roles of HD monitoring in the future.
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Affiliation(s)
- Davinder Ramsingh
- Department of Anesthesiology Loma Linda University Medical Center, Loma Linda, CA, USA; VP for Clinical and Medical Affairs, Edwards Lifesciences Critical Care Division, USA.
| | - Jared Staab
- Director of Perioperative Ultrasound, Program Director Critical Care Anesthesiology Fellowship, Department of Anesthesiology, University of Kansas Medical Center, USA.
| | - Brigid Flynn
- Chief, Division of Critical Care, Co-Director Cardiothoracic ICUChair Anesthesia Research Committee, Department of Anesthesiology, University of Kansas Medical, USA.
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15
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The Implementation of Lean Six Sigma Principles to Improve the Value of Care Delivery for Total Joint Arthroplasty Patients: The Perioperative Institute of Surgical Excellence Experience. J Am Acad Orthop Surg 2021; 29:e1087-e1096. [PMID: 34525480 DOI: 10.5435/jaaos-d-20-00497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Accepted: 09/27/2020] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND With the projected increase in the volume of total joint arthroplasty (TJA), minimizing variations in surgery times, hospital length of stay (LOS), discharge dispositions, and inhospital complication rates would help reduce costs and improve the quality of care. As the move toward bundle payment models gains further traction, providers will be reimbursed based on the quality and cost associated with the surgical episode. As such, it remains critical to design and implement high-quality cost-effective perioperative delivery care models. Lean Six Sigma (LSS) methodology has been well described in the healthcare field as a superior strategy in designing processes aimed at reducing waste while minimizing error rates. We present an institutional experience with the design and implementation of a LSS quality improvement process specific to the TJA pathway, with a hypothesis of expected decrease in case cancellation rate, inhospital LOS, 30-day readmissions, and inpatient rehabilitation utilization after program implementation. METHODS In 2017, the Perioperative Institute of Surgical Excellence (PISE) program for lower limb TJA was designed and implemented at our institution over a 4-month duration. The program was designed following LSS principles as a low-cost easily adoptable model with a goal to reduce hospital LOS, case cancellation rate, 30-day readmissions, and inpatient rehabilitation utilization. RESULTS A total of 328 patients (128 total hip arthroplasty and 200 total knee arthroplasty) were included in PISE compared with a total of 255 patients (106 total hip arthroplasty and 149 total knee arthroplasty) for the preimplementation cohort. After implementation of the model, and compared with a similar 4-month preimplementation duration, the pilot results revealed an increase in monthly case load by 28.6%, decrease in the 30-day readmission rate by 1.16%, inpatient rehabilitation utilization by 60%, a reduction of the average LOS by 0.8 days, and a case cancellations decrease by 51%. CONCLUSION The implementation of the pilot protocol for PISE within our institution was successful in decreasing LOS, inpatient rehabilitation utilization, 30-day readmission, and case cancellation. Further assessment is needed to ascertain sustainability of the protocol over a longer duration and generalizability of the results at different institutions and surgeons.
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Dushianthan A, Knight M, Russell P, Grocott MP. Goal-directed haemodynamic therapy (GDHT) in surgical patients: systematic review and meta-analysis of the impact of GDHT on post-operative pulmonary complications. Perioper Med (Lond) 2020; 9:30. [PMID: 33072306 PMCID: PMC7560066 DOI: 10.1186/s13741-020-00161-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/22/2020] [Indexed: 01/01/2023] Open
Abstract
Background Perioperative goal-directed haemodynamic therapy (GDHT), defined as the administration of fluids with or without inotropes or vasoactive agents against explicit measured goals to augment blood flow, has been evaluated in many randomised controlled trials (RCTs) over the past four decades. Reported post-operative pulmonary complications commonly include chest infection or pneumonia, atelectasis, acute respiratory distress syndrome or acute lung injury, aspiration pneumonitis, pulmonary embolism, and pulmonary oedema. Despite the substantial clinical literature in this area, it remains unclear whether their incidence is reduced by GDHT. This systematic review aims to determine the effect of GDHT on the respiratory outcomes listed above, in surgical patients. Methods We searched the Cochrane Central Register for Controlled Trials (CENTRAL), MEDLINE, EMBASE, and clinical trial registries up until January 2020. We included all RCTs reporting pulmonary outcomes. The primary outcome was post-operative pulmonary complications and secondary outcomes were specific pulmonary complications and intra-operative fluid input. Data synthesis was performed on Review Manager and heterogeneity was assessed using I2 statistics. Results We identified 66 studies with 9548 participants reporting pulmonary complications. GDHT resulted in a significant reduction in total pulmonary complications (OR 0.74, 95% CI 0.59 to 0.92). The incidence of pulmonary infections, reported in 45 studies with 6969 participants, was significantly lower in the GDHT group (OR 0.72, CI 0.60 to 0.86). Pulmonary oedema was recorded in 23 studies with 3205 participants and was less common in the GDHT group (OR 0.47, CI 0.30 to 0.73). There were no differences in the incidences of pulmonary embolism or acute respiratory distress syndrome. Sub-group analyses demonstrated: (i) benefit from GDHT in general/abdominal/mixed and cardiothoracic surgery but not in orthopaedic or vascular surgery; and (ii) benefit from fluids with inotropes and/or vasopressors in combination but not from fluids alone. Overall, the GDHT group received more colloid (+280 ml) and less crystalloid (−375 ml) solutions than the control group. Due to clinical and statistical heterogeneity, we downgraded this evidence to moderate. Conclusions This systematic review and meta-analysis suggests that the use of GDHT using fluids with inotropes and/or vasopressors, but not fluids alone, reduces the development of post-operative pulmonary infections and pulmonary oedema in general, abdominal and cardiothoracic surgical patients. This evidence was graded as moderate. PROSPERO registry reference: CRD42020170361
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Affiliation(s)
- Ahilanandan Dushianthan
- General Intensive Care Unit, University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD UK.,Anaesthesia Perioperative and Critical Care Research Group, Southampton NIHR Biomedical Research Centre, University Hospital Southampton/University of Southampton, Southampton, UK.,Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Martin Knight
- General Intensive Care Unit, University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD UK
| | - Peter Russell
- General Intensive Care Unit, University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD UK
| | - Michael Pw Grocott
- General Intensive Care Unit, University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD UK.,Anaesthesia Perioperative and Critical Care Research Group, Southampton NIHR Biomedical Research Centre, University Hospital Southampton/University of Southampton, Southampton, UK.,Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
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17
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Che L, Zhang XH, Li X, Zhang YL, Xu L, Huang YG. Outcome impact of individualized fluid management during spine surgery: a before-after prospective comparison study. BMC Anesthesiol 2020; 20:181. [PMID: 32698766 PMCID: PMC7376681 DOI: 10.1186/s12871-020-01092-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 07/13/2020] [Indexed: 02/11/2023] Open
Abstract
Background Individualized fluid management (IFM) has been shown to be useful to improve the postoperative outcome of patients undergoing major abdominal surgery. A limited number of clinical studies have been done in orthopaedic patients and have yielded conflicting results. We designed the present study to investigate the clinical impact of IFM in patients undergoing major spine surgery. Methods This is a before-after study done in 300 patients undergoing posterior spine arthrodesis. Postoperative outcomes were compared between control group implementing standard fluid management (n = 150) and IFM group (n = 150) guided by fluid protocol based on continuous stroke volume monitoring and optimization. The primary outcome measure was the proportion of patients who developed one or more complications within 30 days following surgery. Results During surgery, patients received on average the same volume of crystalloids (7.4 vs 7.2 ml/kg/h) and colloids (1.6 vs 1.6 ml/kg/h) before and after the implementation of IFM. During 30 days following surgery, the proportion of patients who developed one or more complications was lower in the IFM group (32 vs 48%, p < 0.01). This difference was mainly explained by a significant decrease in post-operative nausea and vomiting (from 38 to 19%, p < 0.01), urinary tract infections (from 9 to 1%, p < 0.01) and surgical site infections (from 5 to 1%, p < 0.05). Median hospital length of stay was not affected by the implementation of IFM. Conclusion In patients undergoing major spine surgery, the implementation of IFM was associated with a significant decrease in postoperative morbidity. Trial registration ClinicalTrials.gov Identifier: NCT02470221. Prospectively registered on June 12, 2015.
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Affiliation(s)
- Lu Che
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Xiu H Zhang
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Xu Li
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Yue L Zhang
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Li Xu
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, 100730, China.
| | - Yu G Huang
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, 100730, China
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18
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Chen H, Zhu Z, Zhao C, Guo Y, Chen D, Wei Y, Jin J. Central venous pressure measurement is associated with improved outcomes in septic patients: an analysis of the MIMIC-III database. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2020; 24:433. [PMID: 32665010 PMCID: PMC7358999 DOI: 10.1186/s13054-020-03109-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 06/26/2020] [Indexed: 12/15/2022]
Abstract
Purpose Measurement of central venous pressure (CVP) can be a useful clinical tool. However, the formal utility of CVP measurement in preventing mortality in septic patients has never been proven. Methods The Medical Information Mart for Intensive Care III (MIMIC-III) database was searched to identify septic patients with and without CVP measurements. The primary outcome was 28-day mortality. Multivariate regression was used to elucidate the relationship between CVP measurement and 28-day mortality, and propensity score matching (PSM) and an inverse probability of treatment weighing (IPTW) were employed to validate our findings. Results A total of 10,275 patients were included in our study, of which 4516 patients (44%) underwent CVP measurement within 24 h of intensive care unit (ICU) admission. The risk of 28-day mortality was reduced in the CVP group (OR 0.60 (95% CI 0.51–0.70; p < 0.001)). Patients in the CVP group received more fluid on day 1 and had a shorter duration of mechanical ventilation and vasopressor use, and the reduction in serum lactate was greater than that in the no CVP group. The mediating effect of serum lactate reduction was significant for the whole cohort (p = 0.04 for the average causal mediation effect (ACME)) and patients in the CVP group with an initial CVP level below 8 mmHg (p = 0.04 for the ACME). Conclusion CVP measurement was associated with decreased risk-adjusted 28-day mortality among patients with sepsis and was proportionally mediated through serum lactate reduction.
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Affiliation(s)
- Hui Chen
- Department of Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, 215000, Jiangsu, China
| | - Zhu Zhu
- Department of General Surgery, The Affiliated Suzhou Science & Technology Town Hospital of Nanjing Medical University, Suzhou, 215000, Jiangsu, China
| | - Chenyan Zhao
- Department of Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, 215000, Jiangsu, China
| | - Yanxia Guo
- Department of Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, 215000, Jiangsu, China
| | - Dongyu Chen
- Department of Intensive Care Medicine, Yancheng City No.1 People's Hospital, Yancheng, 224000, Jiangsu, China
| | - Yao Wei
- Department of Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, 215000, Jiangsu, China. .,Department of Intensive Care Medicine, The First Affiliated Hospital of Soochow University, No. 899 Pinghai Road, Suzhou, 215000, Jiangsu, China.
| | - Jun Jin
- Department of Critical Care Medicine, The First Affiliated Hospital of Soochow University, Suzhou, 215000, Jiangsu, China. .,Department of Intensive Care Medicine, The First Affiliated Hospital of Soochow University, No. 899 Pinghai Road, Suzhou, 215000, Jiangsu, China.
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19
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Occurrence of Symptomatic Hypotension in Patients Undergoing Breast Free Flaps: Is Enhanced Recovery after Surgery to Blame? Plast Reconstr Surg 2020; 145:606-616. [PMID: 32097291 DOI: 10.1097/prs.0000000000006537] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
BACKGROUND Enhanced recovery after surgery (ERAS) initiatives improve postoperative function and expedite recovery, leading to a decrease in length of stay. The authors noted a high rate of postoperative symptomatic hypotension in patients undergoing abdominal free flap breast reconstruction and wished to explore this observation. METHODS Subjects undergoing abdominal free flap breast reconstruction at the authors' institution from 2013 to 2017 were identified. The ERAS protocol was initiated in 2015 at the authors' hospital; thus, 99 patients underwent traditional management and 138 patients underwent ERAS management. Demographics and perioperative data were collected and analyzed. Postoperative symptomatic hypotension was defined as mean arterial pressure below 80 percent of baseline with symptoms requiring evaluation. RESULTS A significantly higher rate of postoperative symptomatic hypotension was observed in the ERAS cohort compared with the traditional management cohort (4 percent versus 22 percent; p < 0.0001). Patients in the ERAS cohort received significantly less intraoperative intravenous fluid (4467 ml versus 3505 ml; p < 0.0001) and had a significantly increased amount of intraoperative time spent with low blood pressure (22 percent versus 32 percent; p =0.002). Postoperatively, the ERAS cohort had significantly lower heart rate (77 beats per minute versus 88 beats per minute; p < 0.0001) and mean arterial pressure (71 mmHg versus 78 mmHg; p < 0.0001), with no difference in urine output or adverse events. CONCLUSIONS The authors report that ERAS implementation in abdominal free flap breast reconstruction may result in a unique physiologic state with low mean arterial pressure, low heart rate, and normal urine output, resulting in postoperative symptomatic hypotension. Awareness of this early postoperative finding can help better direct fluid resuscitation and prevent episodes of symptomatic hypotension. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, III.
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20
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Silva-Jr JM, Menezes PFL, Lobo SM, de Carvalho FHS, de Oliveira MAN, Cardoso Filho FNF, Fernando BN, Carmona MJC, Teich VD, Malbouisson LMS. Impact of perioperative hemodynamic optimization therapies in surgical patients: economic study and meta-analysis. BMC Anesthesiol 2020; 20:71. [PMID: 32234025 PMCID: PMC7110788 DOI: 10.1186/s12871-020-00987-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 03/20/2020] [Indexed: 11/10/2022] Open
Abstract
Background Several studies suggest that hemodynamic optimization therapies can reduce complications, the length of hospital stay and costs. However, Brazilian data are scarce. Therefore, the objective of this analysis was to evaluate whether the improvement demonstrated by hemodynamic optimization therapy in surgical patients could result in lower costs from the perspective of the Brazilian public unified health system. Methods A meta-analysis was performed comparing surgical patients who underwent hemodynamic optimization therapy (intervention) with patients who underwent standard therapy (control) in terms of complications and hospital costs. The cost-effectiveness analysis evaluated the clinical and financial benefits of hemodynamic optimization protocols for surgical patients. The analysis considered the clinical outcomes of randomized studies published in the last 20 years that involved surgeries and hemodynamic optimization therapy. Indirect costs (equipment depreciation, estate and management activities) were not included in the analysis. Results A total of 21 clinical trials with a total of 4872 surgical patients were selected. Comparison of the intervention and control groups showed lower rates of infectious (RR = 0.66; 95% CI = 0.58–0.74), renal (RR = 0.68; 95% CI = 0.54–0.87), and cardiovascular (RR = 0.87; 95% CI = 0.76–0.99) complications and a nonstatistically significant lower rate of respiratory complications (RR = 0.82; 95% CI = 0.67–1.02). There was no difference in mortality (RR = 1.02; 95% CI = 0.80–1.3) between groups. In the analysis of total costs, the intervention group showed a cost reduction of R$396,024.83-BRL ($90,161.38-USD) for every 1000 patients treated compared to the control group. The patients in the intervention group showed greater effectiveness, with 1.0 fewer days in the intensive care unit and hospital. In addition, there were 333 fewer patients with complications, with a consequent reduction of R$1,630,341.47-BRL ($371,173.27-USD) for every 1000 patients treated. Conclusions Hemodynamic optimization therapy is cost-effective and would increase the efficiency of and decrease the burden of the Brazilian public health system.
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Affiliation(s)
- João M Silva-Jr
- Anesthesiology Department, Barretos Cancer Hospital, PIOXII Foundation, São Paulo, Brazil. .,Anesthesiology Department, Hospital do Servidor Público Estadual, IAMSPE, São Paulo, Brazil. .,Anesthesiology Division, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil. .,Hospital Israelita Albert Einstein, São Paulo, Brazil.
| | - Pedro Ferro L Menezes
- Anesthesiology Department, Hospital do Servidor Público Estadual, IAMSPE, São Paulo, Brazil.,Anesthesiology Division, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - Suzana M Lobo
- Hospital de base de São José do Rio Preto, São José do Rio Preto, São Paulo, Brazil
| | | | | | | | - Bruna N Fernando
- Anesthesiology Department, Hospital do Servidor Público Estadual, IAMSPE, São Paulo, Brazil
| | - Maria Jose C Carmona
- Anesthesiology Division, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | | | - Luiz Marcelo S Malbouisson
- Anesthesiology Division, Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
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21
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Odor PM, Bampoe S, Gilhooly D, Creagh-Brown B, Moonesinghe SR. Perioperative interventions for prevention of postoperative pulmonary complications: systematic review and meta-analysis. BMJ 2020; 368:m540. [PMID: 32161042 PMCID: PMC7190038 DOI: 10.1136/bmj.m540] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVE To identify, appraise, and synthesise the best available evidence on the efficacy of perioperative interventions to reduce postoperative pulmonary complications (PPCs) in adult patients undergoing non-cardiac surgery. DESIGN Systematic review and meta-analysis of randomised controlled trials. DATA SOURCES Medline, Embase, CINHAL, and CENTRAL from January 1990 to December 2017. ELIGIBILITY CRITERIA Randomised controlled trials investigating short term, protocolised medical interventions conducted before, during, or after non-cardiac surgery were included. Trials with clinical diagnostic criteria for PPC outcomes were included. Studies of surgical technique or physiological or biochemical outcomes were excluded. DATA EXTRACTION AND SYNTHESIS Reviewers independently identified studies, extracted data, and assessed the quality of evidence. Meta-analyses were conducted to calculate risk ratios with 95% confidence intervals. Quality of evidence was summarised in accordance with GRADE methods. The primary outcome was the incidence of PPCs. Secondary outcomes were respiratory infection, atelectasis, length of hospital stay, and mortality. Trial sequential analysis was used to investigate the reliability and conclusiveness of available evidence. Adverse effects of interventions were not measured or compared. RESULTS 117 trials enrolled 21 940 participants, investigating 11 categories of intervention. 95 randomised controlled trials enrolling 18 062 participants were included in meta-analysis; 22 trials were excluded from meta-analysis because the interventions were not sufficiently similar to be pooled. No high quality evidence was found for interventions to reduce the primary outcome (incidence of PPCs). Seven interventions had low or moderate quality evidence with confidence intervals indicating a probable reduction in PPCs: enhanced recovery pathways (risk ratio 0.35, 95% confidence interval 0.21 to 0.58), prophylactic mucolytics (0.40, 0.23 to 0.67), postoperative continuous positive airway pressure ventilation (0.49, 0.24 to 0.99), lung protective intraoperative ventilation (0.52, 0.30 to 0.88), prophylactic respiratory physiotherapy (0.55, 0.32 to 0.93), epidural analgesia (0.77, 0.65 to 0.92), and goal directed haemodynamic therapy (0.87, 0.77 to 0.98). Moderate quality evidence showed no benefit for incentive spirometry in preventing PPCs. Trial sequential analysis adjustment confidently supported a relative risk reduction of 25% in PPCs for prophylactic respiratory physiotherapy, epidural analgesia, enhanced recovery pathways, and goal directed haemodynamic therapies. Insufficient data were available to support or refute equivalent relative risk reductions for other interventions. CONCLUSIONS Predominantly low quality evidence favours multiple perioperative PPC reduction strategies. Clinicians may choose to reassess their perioperative care pathways, but the results indicate that new trials with a low risk of bias are needed to obtain conclusive evidence of efficacy for many of these interventions. STUDY REGISTRATION Prospero CRD42016035662.
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Affiliation(s)
- Peter M Odor
- Department of Anaesthesia and Perioperative Medicine, University College Hospital, London, UK
| | - Sohail Bampoe
- Department of Anaesthesia and Perioperative Medicine, University College Hospital, London, UK
| | - David Gilhooly
- Department of Anaesthesia and Perioperative Medicine, University College Hospital, London, UK
| | - Benedict Creagh-Brown
- Surrey Perioperative Anaesthesia Critical care collaborative Research (SPACeR) Group, Intensive Care Unit, Royal Surrey County Hospital NHS Foundation Trust, Guildford, UK
- Department of Clinical and Experimental Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - S Ramani Moonesinghe
- Department of Anaesthesia and Perioperative Medicine, University College Hospital, London, UK
- UCL/UCLH Surgical Outcomes Research Centre, UCL Centre for Perioperative Medicine, Research Department for Targeted Intervention, Division of Surgery and Interventional Science, University College London, London, UK
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Impact of Intravenous Fluids and Enteral Nutrition on the Severity of Gastrointestinal Dysfunction: A Systematic Review and Meta-analysis. ACTA ACUST UNITED AC 2020; 6:5-24. [PMID: 32104727 PMCID: PMC7029405 DOI: 10.2478/jccm-2020-0009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 01/30/2020] [Indexed: 12/11/2022]
Abstract
Introduction Gastrointestinal dysfunction (GDF) is one of the primary causes of morbidity and mortality in critically ill patients. Intensive care interventions, such as intravenous fluids and enteral feeding, can exacerbate GDF. There exists a paucity of high-quality literature on the interaction between these two modalities (intravenous fluids and enteral feeding) as a combined therapy on its impact on GDF. Aim To review the impact of intravenous fluids and enteral nutrition individually on determinants of gut function and implications in clinical practice. Methods Randomized controlled trials on intravenous fluids and enteral feeding on GDF were identified by a comprehensive database search of MEDLINE and EMBASE. Extraction of data was conducted for study characteristics, provision of fluids or feeding in both groups and quality of studies was assessed using the Cochrane criteria. A random-effects model was applied to estimate the impact of these interventions across the spectrum of GDF severity. Results Restricted/ goal-directed intravenous fluid therapy is likely to reduce ‘mild’ GDF such as vomiting (p = 0.03) compared to a standard/ liberal intravenous fluid regime. Enterally fed patients experienced increased episodes of vomiting (p = <0.01) but were less likely to develop an anastomotic leak (p = 0.03) and peritonitis (p = 0.03) compared to parenterally fed patients. Vomiting (p = <0.01) and anastomotic leak (p = 0.04) were significantly lower in the early enteral feeding group. Conclusions There is less emphasis on the combined approach of intravenous fluid resuscitation and enteral feeding in critically ill patients. Conservative fluid resuscitation and aggressive enteral feeding are presumably key factors contributing to severe life-threatening GDF. Future trials should evaluate the impact of cross-interaction between conservative and aggressive modes of these two interventions on the severity of GDF.
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Wrzosek A, Jakowicka‐Wordliczek J, Zajaczkowska R, Serednicki WT, Jankowski M, Bala MM, Swierz MJ, Polak M, Wordliczek J. Perioperative restrictive versus goal-directed fluid therapy for adults undergoing major non-cardiac surgery. Cochrane Database Syst Rev 2019; 12:CD012767. [PMID: 31829446 PMCID: PMC6953415 DOI: 10.1002/14651858.cd012767.pub2] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Perioperative fluid management is a crucial element of perioperative care and has been studied extensively recently; however, 'the right amount' remains uncertain. One concept in perioperative fluid handling is goal-directed fluid therapy (GDFT), wherein fluid administration targets various continuously measured haemodynamic variables with the aim of optimizing oxygen delivery. Another recently raised concept is that perioperative restrictive fluid therapy (RFT) may be beneficial and at least as effective as GDFT, with lower cost and less resource utilization. OBJECTIVES To investigate whether RFT may be more beneficial than GDFT for adults undergoing major non-cardiac surgery. SEARCH METHODS We searched the following electronic databases on 11 October 2019: Cochrane Central Register of Controlled Trials, in the Cochrane Libary; MEDLINE; and Embase. Additionally, we performed a targeted search in Google Scholar and searched trial registries (World Health Organization (WHO) International Clinical Trials Registry Platform (ICTRP) and ClinicalTrials.gov) for ongoing and unpublished trials. We scanned the reference lists and citations of included trials and any relevant systematic reviews identified. SELECTION CRITERIA We included randomized controlled trials (RCTs) comparing perioperative RFT versus GDFT for adults (aged ≥ 18 years) undergoing major non-cardiac surgery. DATA COLLECTION AND ANALYSIS Two review authors independently screened references for eligibility, extracted data, and assessed risk of bias. We resolved discrepancies by discussion and consulted a third review author if necessary. When necessary, we contacted trial authors to request additional information. We presented pooled estimates for dichotomous outcomes as risk ratios (RRs) with 95% confidence intervals (CIs), and for continuous outcomes as mean differences (MDs) with standard deviations (SDs). We used Review Manager 5 software to perform the meta-analyses. We used a fixed-effect model if we considered heterogeneity as not important; otherwise, we used a random-effects model. We used Poisson regression models to compare the average number of complications per person. MAIN RESULTS From 6396 citations, we included six studies with a total of 562 participants. Five studies were performed in participants undergoing abdominal surgery (including one study in participants undergoing cytoreductive abdominal surgery with hyperthermic intraperitoneal chemotherapy (HIPEC)), and one study was performed in participants undergoing orthopaedic surgery. In all studies, surgeries were elective. In five studies, crystalloids were used for basal infusion and colloids for boluses, and in one study, colloid was used for both basal infusion and boluses. Five studies reported the ASA (American Society of Anesthesiologists) status of participants. Most participants were ASA II (60.4%), 22.7% were ASA I, and only 16.9% were ASA III. No study participants were ASA IV. For the GDFT group, oesophageal doppler monitoring was used in three studies, uncalibrated invasive arterial pressure analysis systems in two studies, and a non-invasive arterial pressure monitoring system in one study. In all studies, GDFT optimization was conducted only intraoperatively. Only one study was at low risk of bias in all domains. The other five studies were at unclear or high risk of bias in one to three domains. RFT may have no effect on the rate of major complications compared to GDFT, but the evidence is very uncertain (RR 1.61, 95% CI 0.78 to 3.34; 484 participants; 5 studies; very low-certainty evidence). RFT may increase the risk of all-cause mortality compared to GDFT, but the evidence on this is also very uncertain (RD 0.03, 95% CI 0.00 to 0.06; 544 participants; 6 studies; very low-certainty evidence). In a post-hoc analysis using a Peto odds ratio (OR) or a Poisson regression model, the odds of all-cause mortality were 4.81 times greater with the use of RFT compared to GDFT, but the evidence again is very uncertain (Peto OR 4.81, 95% CI 1.38 to 16.84; 544 participants; 6 studies; very low-certainty evidence). Nevertheless, sensitivity analysis shows that exclusion of a study in which the final volume of fluid received intraoperatively was higher in the RFT group than in the GDFT group revealed no differences in mortality. Based on analysis of secondary outcomes, such as length of hospital stay (464 participants; 5 studies; very low-certainty evidence), surgery-related complications (364 participants; 4 studies; very low-certainty evidence), non-surgery-related complications (74 participants; 1 study; very low-certainty evidence), renal failure (410 participants; 4 studies; very low-certainty evidence), and quality of surgical recovery (74 participants; 1 study; very low-certainty evidence), GDFT may have no effect on the risk of these outcomes compared to RFT, but the evidence is very uncertain. Included studies provided no data on administration of vasopressors or inotropes to correct haemodynamic instability nor on cost of treatment. AUTHORS' CONCLUSIONS Based on very low-certainty evidence, we are uncertain whether RFT is inferior to GDFT in selected populations of adults undergoing major non-cardiac surgery. The evidence is based mainly on data from studies on abdominal surgery in a low-risk population. The evidence does not address higher-risk populations or other surgery types. Larger, higher-quality RCTs including a wider spectrum of surgery types and a wider spectrum of patient groups, including high-risk populations, are needed to determine effects of the intervention.
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Affiliation(s)
- Anna Wrzosek
- Jagiellonian University Medical CollegeDepartment of Interdisciplinary Intensive CareKrakowPoland
- University HospitalDepartment of Anaethesiology and Intensive CareKrakowPoland
| | | | - Renata Zajaczkowska
- Jagiellonian University Medical CollegeDepartment of Interdisciplinary Intensive CareKrakowPoland
| | - Wojciech T Serednicki
- Jagiellonian University Medical CollegeDepartment of Interdisciplinary Intensive CareKrakowPoland
| | - Milosz Jankowski
- University HospitalDepartment of Anaesthesiology and Intensive CareKrakowPoland
- Jagiellonian University Medical CollegeDepartment of Internal Medicine; Systematic Reviews UnitKrakowPoland
| | - Malgorzata M Bala
- Jagiellonian University Medical CollegeChair of Epidemiology and Preventive Medicine, Department of Hygiene and Dietetics; Systematic Reviews UnitKopernika 7KrakowPoland31‐034
| | - Mateusz J Swierz
- Jagiellonian University Medical CollegeDepartment of Hygiene and Dietetics; Systematic Reviews UnitKrakowPoland
| | - Maciej Polak
- Jagiellonian University Medical CollegeDepartment of Epidemiology and Population Studies in the Institute of Public HealthKrakowPoland
| | - Jerzy Wordliczek
- Jagiellonian University Medical CollegeDepartment of Interdisciplinary Intensive CareKrakowPoland
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Perioperative hemodynamic monitoring: Still a place for cardiac filling pressures? Best Pract Res Clin Anaesthesiol 2019; 33:155-163. [PMID: 31582095 DOI: 10.1016/j.bpa.2019.04.004] [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] [Received: 03/19/2019] [Revised: 04/02/2019] [Accepted: 04/02/2019] [Indexed: 11/21/2022]
Abstract
The clinical usefulness of the so-called "static" cardiac filling pressures - central (CVP) and pulmonary-artery-occlusion-pressure (PAOP) - has come into question for guiding hemodynamic therapy due to their poor ability to predict fluid responsiveness in comparison with other monitoring modalities such as transpulmonary thermodilution-derived volumetric measurements, dynamic variables for assessing fluid responsiveness, and the potential risks associated with pulmonary artery catheterization. This contrasts with observations in multiple patient populations showing a clear association between increased CVP and PAOP levels and poor outcomes, probably due to a reduction in effective perfusion pressure (mean arterial pressure minus CVP) and their role as effectiveness parameters of the cardiovascular system. Furthermore, clinical studies have revealed beneficial effects when interpreting CVP and PAOP dynamically and combining them with flow-related hemodynamic variables. Taking into account the additional information derived from bedside CVP and PAOP pulse curve interpretation, cardiac filling pressures remain an important hemodynamic monitoring tool.
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Does goal-directed haemodynamic and fluid therapy improve peri-operative outcomes?: A systematic review and meta-analysis. Eur J Anaesthesiol 2019; 35:469-483. [PMID: 29369117 DOI: 10.1097/eja.0000000000000778] [Citation(s) in RCA: 132] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Much uncertainty exists as to whether peri-operative goal-directed therapy is of benefit. OBJECTIVES To discover if peri-operative goal-directed therapy decreases mortality and morbidity in adult surgical patients. DESIGN An updated systematic review and random effects meta-analysis of randomised controlled trials. DATA SOURCES Medline, Embase and the Cochrane Library were searched up to 31 December 2016. ELIGIBILITY CRITERIA Randomised controlled trials enrolling adult surgical patients allocated to receive goal-directed therapy or standard care were eligible for inclusion. Trauma patients and parturients were excluded. Goal-directed therapy was defined as fluid and/or vasopressor therapy titrated to haemodynamic goals [e.g. cardiac output (CO)]. Outcomes included mortality, morbidity and hospital length of stay. Risk of bias was assessed using Cochrane methodology. RESULTS Ninety-five randomised trials (11 659 patients) were included. Only four studies were at low risk of bias. Modern goal-directed therapy reduced mortality compared with standard care [odds ratio (OR) 0.66; 95% confidence interval (CI) 0.50 to 0.87; number needed to treat = 59; N = 52; I = 0.0%]. In subgroup analysis, there was no mortality benefit for fluid-only goal-directed therapy, cardiac surgery patients or nonelective surgery. Contemporary goal-directed therapy also reduced pneumonia (OR 0.69; 95% CI, 0.51 to 0. 92; number needed to treat = 38), acute kidney injury (OR 0. 73; 95% CI, 0.58 to 0.92; number needed to treat = 29), wound infection (OR 0.48; 95% CI, 0.37 to 0.63; number needed to treat = 19) and hospital length of stay (days) (-0.90; 95% CI, -1.32 to -0.48; I = 81. 2%). No important differences in outcomes were found for the pulmonary artery catheter studies, after accounting for advances in the standard of care. CONCLUSION Peri-operative modern goal-directed therapy reduces morbidity and mortality. Importantly, the quality of evidence was low to very low (e.g. Grading of Recommendations, Assessment, Development and Evaluation scoring), and there was much clinical heterogeneity among the goal-directed therapy devices and protocols. Additional well designed and adequately powered trials on peri-operative goal-directed therapy are necessary.
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Davies SJ, Yates DR, Wilson RJT, Murphy Z, Gibson A, Allgar V, Collyer T. A randomised trial of non-invasive cardiac output monitoring to guide haemodynamic optimisation in high risk patients undergoing urgent surgical repair of proximal femoral fractures (ClearNOF trial NCT02382185). Perioper Med (Lond) 2019; 8:8. [PMID: 31406569 PMCID: PMC6686254 DOI: 10.1186/s13741-019-0119-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 06/30/2019] [Indexed: 01/08/2023] Open
Abstract
Background Hip fracture is a procedure with high mortality and complication rates, and there exists a group especially at risk of these outcomes identified by their Nottingham Hip Fracture Score (NHFS). Meta-analysis suggests a possible benefit to this patient group from intravascular volume optimisation. We investigated whether intraoperative fluid and blood pressure optimisation improved complications in this group. Methods Patients with a NHFS ≥ 5 were enrolled into this multicentre observer-blinded randomised control trial. Patients were allocated to either standard care or a combination of fluid optimisation and blood pressure control using a non-invasive system. The primary outcome was the number of patients with one or more complications in each group. Secondary outcomes included hospital length of stay (LOS), incidence of hypotension and fluid and vasopressor usage. Results Forty-six percent of patients in the intervention group suffered one or more complications compared to the 51% in the control group (OR 0.82 (95% CI 0.49–1.36)). Per-protocol analysis improved the OR to 0.73 (95% CI 0.43–1.24). Median LOS was the same between both groups; however, the mean LOS on a per-protocol analysis was longer in the control group compared to the intervention group (23.2 (18.0) days vs. 18.5 (16.5), p = 0.047). Conclusions Haemodynamic optimisation including blood pressure management in high-risk patients undergoing repair of a hip fracture did not result in a statistically significant reduction in complications; however, a potential reduction in length of stay was seen. Trial registration A randomised trial of non-invasive cardiac output monitoring to guide haemodynamic optimisation in high risk patients undergoing urgent surgical repair of proximal femoral fractures (ClearNOF trial NCT02382185).
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Affiliation(s)
- S J Davies
- 1Department of Anaesthesia, Critical Care and Perioperative Medicine, York Teaching Hospital NHS Foundation Trust, Wiggington Road, York, YO31 8HE UK
| | - D R Yates
- 1Department of Anaesthesia, Critical Care and Perioperative Medicine, York Teaching Hospital NHS Foundation Trust, Wiggington Road, York, YO31 8HE UK
| | - R J T Wilson
- 1Department of Anaesthesia, Critical Care and Perioperative Medicine, York Teaching Hospital NHS Foundation Trust, Wiggington Road, York, YO31 8HE UK
| | - Z Murphy
- 1Department of Anaesthesia, Critical Care and Perioperative Medicine, York Teaching Hospital NHS Foundation Trust, Wiggington Road, York, YO31 8HE UK
| | - A Gibson
- Clinical Research Network: Yorkshire and Humber, York Teaching Hospitals Foundation Trust, Wigginton Road, York, UK
| | - V Allgar
- 3Hull York Medical School/Department of Health Sciences, University of York, York, UK
| | - T Collyer
- 4Department of Anaesthesia, Critical Care and Perioperative Medicine, Harrogate and District NHS Foundation Trust, Harrogate, UK
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Stroke Volume Optimization: Utilization of the Newest Cardiac Vital Sign: Considerations in Recovery from Cardiac Surgery. Crit Care Nurs Clin North Am 2019; 31:329-348. [PMID: 31351554 DOI: 10.1016/j.cnc.2019.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The hemodynamic monitoring landscape is rapidly evolving from pressure-based and static parameters to more blood flow-based and dynamic parameters. Consensus guidelines for cardiac surgery state that the pulmonary artery catheter is neither required nor helpful in most patients. In the meantime, critical care has been searching for the alternatives to the pulmonary artery catheter and protocols for use. Best available evidence for any protocol developed suggests the inclusion of stroke volume optimization to determine fluid responsiveness. Additional strategies to using stroke volume to optimize hemodynamics, including case studies, are discussed.
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Kaufmann T, Saugel B, Scheeren TWL. Perioperative goal-directed therapy - What is the evidence? Best Pract Res Clin Anaesthesiol 2019; 33:179-187. [PMID: 31582097 DOI: 10.1016/j.bpa.2019.05.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 05/08/2019] [Indexed: 01/27/2023]
Abstract
Perioperative goal-directed therapy aims at optimizing global hemodynamics during the perioperative period by titrating fluids, vasopressors, and/or inotropes to predefined hemodynamic goals. There is evidence on the benefit of perioperative goal-directed therapy, but its adoption into clinical practice is slow and incomprehensive. Current evidence indicates that treating patients according to perioperative goal-directed therapy protocols reduces morbidity and mortality, particularly in patients having high-risk surgery. Perioperative goal-directed therapy protocols need to be started early, should include vasoactive agents in addition to fluids, and should target blood flow related variables. Future promising developments in the field of perioperative goal-directed therapy include personalized hemodynamic management and closed-loop system management.
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Affiliation(s)
- Thomas Kaufmann
- Department of Anesthesiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, P.O. Box 30.001, 9700 RB, Groningen, the Netherlands.
| | - Bernd Saugel
- Department of Anesthesiology, Center of Anesthesiology and Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
| | - Thomas W L Scheeren
- Department of Anesthesiology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, P.O. Box 30.001, 9700 RB, Groningen, the Netherlands.
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Goal directed fluid optimization using Pleth variability index versus corrected flow time in cirrhotic patients undergoing major abdominal surgeries. EGYPTIAN JOURNAL OF ANAESTHESIA 2019. [DOI: 10.1016/j.egja.2011.11.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Parker T, Brealey D, Dyson A, Singer M. Optimising organ perfusion in the high-risk surgical and critical care patient: a narrative review. Br J Anaesth 2019; 123:170-176. [PMID: 31054772 DOI: 10.1016/j.bja.2019.03.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/18/2019] [Accepted: 03/12/2019] [Indexed: 12/18/2022] Open
Abstract
Maintenance or prompt restoration of an oxygen supply sufficient to facilitate adequate cellular metabolism is fundamental in maintaining organ function. This is particularly relevant when metabolic needs change markedly, for example in response to major surgery or critical illness. The consequences of inadequate tissue oxygenation include wound and anastomotic breakdown, organ dysfunction, and death. However, our ability to identify those at risk and to promptly recognise and correct tissue hypoperfusion is limited. Reliance is placed upon surrogate markers of tissue oxygenation such as arterial blood pressure and serum lactate that are insensitive to early organ compromise. Advances in oxygen sensing technology will facilitate monitoring in various organ beds and allow more precise titration of therapies to physiologically relevant endpoints. Clinical trials will be needed to evaluate any impact on outcomes, however accurate on-line monitoring of the adequacy of tissue oxygenation offers the promise of a paradigm shift in resuscitation and perioperative practice. This narrative review examines current evidence for goal-directed therapy in the optimisation of organ perfusion in high-risk surgical and critically ill patients, and offers arguments to support the potential utility of tissue oxygen monitoring.
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Affiliation(s)
- Thomas Parker
- Bloomsbury Institute of Intensive Care Medicine, Division of Medicine, University College London, London, UK
| | - David Brealey
- Bloomsbury Institute of Intensive Care Medicine, Division of Medicine, University College London, London, UK
| | - Alex Dyson
- Bloomsbury Institute of Intensive Care Medicine, Division of Medicine, University College London, London, UK
| | - Mervyn Singer
- Bloomsbury Institute of Intensive Care Medicine, Division of Medicine, University College London, London, UK.
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Ali A, Dorman Y, Abdullah T, Yasa C, Orhan-Sungur M, Akinci IO, Ergin-Ozcan P. Ability of mini-fluid challenge to predict fluid responsiveness in obese patients undergoing surgery in the prone position. Minerva Anestesiol 2019; 85:981-988. [PMID: 30994311 DOI: 10.23736/s0375-9393.19.13276-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Pulse pressure variation (PPV) and stroke volume variation (SVV) can predict fluid responsiveness effectively. However, high Body Mass Index (BMI) can restrict their use due to changes in respiratory system compliance (CS), intra-abdominal pressure, and stroke volume (SV) in the prone position. Therefore, we aimed to investigate the effectiveness of mini-fluid challenge (MFC) in predicting fluid responsiveness in obese (BMI ≥30 kg/m2) patients in the prone position. METHODS A total of 33 patients undergoing neurosurgery were included. After standardized anesthesia induction, patients' PPV, SVV, stroke volume index (SVI) and CS values were recorded in the prone position (T1), after the infusion of 100 mL of crystalloid named as MFC (T2) and after fluid loading was completed with additional 400 mL of crystalloid. Patients whose SVI increased more than 15% after the fluid loading were defined as volume responders. RESULTS Fifteen (45%) patients were responders to 500 mL fluid loading. After the 100 mL fluid load, a higher percentage increase in SVI was observed among responders (P<0.001), with values of 6.6% (6.2-8.6%) and 3.5% (1.7-4.8%) in responders and non-responders, respectively. Areas under the receiver operating characteristic curves of MFC, PPV, and SVV were 0.967 (95% CI: 0.838-0.999), 0.683 (95% CI: 0.499-0.834), and 0.709 (95% CI: 0.526-0.853), respectively. The area under the curve of MFC was significantly higher than that of PPV (P=0.003) and SVV (P=0.005). CONCLUSIONS The increase in SVI after a rapid infusion of 100 mL crystalloid could predict fluid responsiveness in patients with BMI ≥30 kg/m2 in the prone position.
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Affiliation(s)
- Achmet Ali
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Yeser Dorman
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Taner Abdullah
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey -
| | - Ceren Yasa
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Mukadder Orhan-Sungur
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Ibrahim O Akinci
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Perihan Ergin-Ozcan
- Department of Anesthesiology and Reanimation, Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
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The determination of real fluid requirements in laparoscopic resection of pheochromocytoma using minimally invasive hemodynamic monitoring: a prospectively designed trial. Surg Endosc 2019; 34:368-376. [PMID: 30976898 PMCID: PMC6946750 DOI: 10.1007/s00464-019-06777-z] [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: 11/07/2018] [Accepted: 04/02/2019] [Indexed: 02/07/2023]
Abstract
Background Hemodynamic instability is frequently observed during adrenalectomy for pheochromocytoma (PCC). Guidelines recommend liberal preoperative volume administration. However, it is unclear whether fluid deficiency or vasoplegia causes shifting hemodynamics and whether minimally invasive hemodynamic monitoring with esophageal Doppler (EDM) can help visualize intraoperative changes avoiding volume overload and complications. Methods Ten patients with biochemically verified PCC and five patients with hormonally inactive adrenal tumors (HIAT; control group) were treated following a strict protocol. During laparoscopic adrenalectomy, goal-directed fluid therapy was performed using EDM. Hemodynamic and biochemical data were documented. The primary outcome variables were fluid requirement and hemodynamic parameters. Results Applying EDM, total intraoperative fluid administration was slightly higher in PCC patients than in patients with HIAT (2100 ± 516 vs. 1550 ± 622 ml, p = 0.097; 12.9 ± 4.8 vs. 8.3 ± 0.7 ml kg−1 h−1, p = 0.014). Hemodynamics varied considerably within the PCC group and was associated with type and level of secreted catecholamines. Arterial blood pressure and systemic vascular resistance index reached their minimum in the 10-min period after resection of PCC. Without liberal fluid administration, an increase in cardiac index was observed in both groups comparing baseline measurements to end of surgery. This increase was statistically significant only in PCC patients (PCC: 2.31 vs. 3.15 l min−1 m−2, p = 0.005; HIAT: 2.08 vs. 2.56 l min−1 m−2, p = 0.225). Conclusions As vasoplegia, but not hypovolemia, was documented after tumor resection, there is no evidence that PCC patients profit from liberal fluid administration during laparoscopic adrenalectomy. To avoid volume overload, noninvasive techniques such as EDM should be routinely used to visualize the variable intraoperative course. Trial registration: ClinicalTrials.gov, Identifier: NCT01425710.
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de Witte P, de Witt CA, van de Minkelis JL, Boerma D, Solinger HF, Hack CE, Bruins P. Inflammatory response and optimalisation of perioperative fluid administration during hyperthermic intraoperative intraperitoneal chemotherapy surgery. J Gastrointest Oncol 2019; 10:244-253. [PMID: 31032091 DOI: 10.21037/jgo.2018.12.09] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Surgical cytoreduction and simultaneous hyperthermic intraoperative intraperitoneal chemotherapy (HIPEC) for peritoneal carcinomatosis has a high incidence of postoperative complications. Inadequate intraoperative volume therapy is a known risk factor for the development of postoperative complications. Another possible risk factor is the inflammatory response due to surgery and HIPEC. The aim of this observational pilot study was to monitor fluid intake in the first 24 hours peri- and postoperative by using a non-invasive cardiac output indicator. Furthermore, we measured circulating cytokines and evaluated the possible relation of these changes of inflammatory response with the non-invasive monitored fluid management. Methods Twenty-four patients undergoing cytoreductive surgery and HIPEC for peritoneal carcinomatosis were included. Patients were randomised into either a liberal fluid management group using intra-arterial blood pressure and central venous pressure measurement or a restrictive group by using intra-arterial blood pressure and central venous pressure measurement with FloTrac/Vigileo monitoring. Cytokines were measured with multiplex immunoassays. Results We found no difference in the amount of fluid administration in patients undergoing HIPEC surgery with FloTrac/Vigileo monitoring compared to standard care. Furthermore, there was no difference in mortality, ICU and hospital length of stay between both groups. A severe inflammatory response was seen in all patients after the HIPEC procedure with a rapid increase of interleukins and C-reactive protein (CRP). There was however no difference between our intervention and control group in the severity of this reaction. Finally, we found no relation between the severity of the inflammatory response and mortality, or a composite end-point of mortality and severe complications within 30 days postoperative. Conclusions FloTrac/Vigileo monitoring does not lead to a more restrictive fluid administration and does not influence short-term clinical course in patients undergoing HIPEC surgery. The procedure itself leads to a severe inflammatory response, which is not affected by the use of FloTrac/Vigileo. Our data do not support the use of FloTrac/Vigileo monitoring in patients undergoing HIPEC surgery concerning fluid restrictive management.
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Affiliation(s)
- Piet de Witte
- Department of Anesthesiology, Intensive Care & Pain Management, St Antonius Ziekenhuis, Nieuwegein, The Netherlands
| | - Christien A de Witt
- Department of Anesthesiology & Pain Management, Medisch Centrum, Alkmaar, The Netherlands
| | - Johan L van de Minkelis
- Department of Anesthesiology & Pain Management, Elisabeth-TweeSteden ziekenhuis, Tilburg, The Netherlands
| | - Djamila Boerma
- Department of Surgery, St Antonius Ziekenhuis, Nieuwegein, The Netherlands
| | - H Frank Solinger
- Department of Extracorporeal Circulation, St Antonius Ziekenhuis, Nieuwegein, The Netherlands
| | - C Erik Hack
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands.,Department of Rheumatology, University Medical Center Utrecht, Utrecht, The Netherlands.,Department of Dermatology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Peter Bruins
- Department of Anesthesiology, Intensive Care & Pain Management, St Antonius Ziekenhuis, Nieuwegein, The Netherlands
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Kaufmann KB, Stein L, Bogatyreva L, Ulbrich F, Kaifi JT, Hauschke D, Loop T, Goebel U. Oesophageal Doppler guided goal-directed haemodynamic therapy in thoracic surgery - a single centre randomized parallel-arm trial. Br J Anaesth 2018; 118:852-861. [PMID: 28575331 DOI: 10.1093/bja/aew447] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2016] [Indexed: 01/22/2023] Open
Abstract
Background Postoperative pulmonary and renal complications are frequent in patients undergoing lung surgery. Hyper- and hypovolaemia may contribute to these complications. We hypothesized that goal-directed haemodynamic management based on oesophageal Doppler monitoring would reduce postoperative pulmonary complications in a randomized clinical parallel-arm trial. Methods One hundred patients scheduled for thoracic surgery were randomly assigned to either standard haemodynamic management (control group) or goal-directed therapy (GDT group) guided by an oesophageal Doppler monitoring-based algorithm. The primary endpoint was postoperative pulmonary complications, including spirometry. Secondary endpoints included haemodynamic variables, renal, cardiac, and neurological complications, and length of hospital stay. The investigator assessing outcomes was blinded to group assignment. Results Forty-eight subjects of each group were analysed. Compared to the control group, fewer subjects in the GDT group developed postoperative pulmonary complications (6 vs. 15 patients; P = 0.047), while spirometry did not differ between groups. Compared to the control group, patients of the GDT group showed higher cardiac index (2.9 vs. 2.1 [l min - 1 m - 2 ]; P < 0.001) and stroke volume index (43 vs. 34 [ml m 2 ]; P < 0.001) during surgery. Renal, cardiac and neurological complications did not differ between groups. Length of hospital stay was shorter in the GDT compared to the control group (9 vs. 11 days; P = 0.005). Conclusions Compared to standard haemodynamic management, oesophageal Doppler monitor-guided GDT was associated with fewer postoperative pulmonary complications and a shorter hospital stay. Clinical trial registration. The study was registered in the German Clinical Trials Register (DRKS 00006961). https://drks-neu.uniklinik-freiburg.de/drks_web/.
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Affiliation(s)
| | - L Stein
- Department of Anaesthesiology and Critical Care
| | - L Bogatyreva
- IMBI, Institute of Medical Biometry and Statistics, University of Freiburg, Freiburg, Germany
| | - F Ulbrich
- Department of Anaesthesiology and Critical Care
| | - J T Kaifi
- Department of Thoracic Surgery, Medical Centre - University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - D Hauschke
- IMBI, Institute of Medical Biometry and Statistics, University of Freiburg, Freiburg, Germany
| | - T Loop
- Department of Anaesthesiology and Critical Care
| | - U Goebel
- Department of Anaesthesiology and Critical Care
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Roger C, Muller L, Riou B, Molinari N, Louart B, Kerbrat H, Teboul JL, Lefrant JY. Comparison of different techniques of central venous pressure measurement in mechanically ventilated critically ill patients. Br J Anaesth 2018; 118:223-231. [PMID: 28100526 DOI: 10.1093/bja/aew386] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2016] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Several techniques exist for measuring central venous pressure (CVP) but little information is available about the accuracy of each method. The aim of this study was to compare different methods of CVP measurements in mechanically ventilated patients. METHODS CVP was measured in mechanically ventilated patients without spontaneous breathing using four different techniques: 1) end expiratory CVP measurement at the base of the" c" wave (CVPMEASURED), chosen as the reference method; 2) CVP measurement from the monitor averaging CVP over the cardiac and respiratory cycles (CVPMONITOR); 3) CVP measurement after a transient withdrawing of mechanical ventilation (CVPNADIR); 4) CVP measurement corrected for the transmitted respiratory pressure induced by intrinsic PEEP (calculated CVP: CVPCALCULATED). Bias, precision, limits of agreement, and proportions of outliers (difference > 2 mm Hg) were determined. RESULTS Among 61 included patients, 103 CVP assessments were performed. CVPMONITOR bias [-0.87 (1.06) mm Hg] was significantly different from those of CVPCALCULATED [1.42 (1.07), P < 0.001 and CVPNADIR (1.04 (1.29), P < 0.001]. The limits of agreement of CVPMONITOR [-2.96 to 1.21 mm Hg] were not significantly different to those of CVPNADIR (-1.49 to 3.57 mm Hg, P = 0.39) and CVPCALCULATED (-0.68 to 3.53 mm Hg, P = 0.31). The proportion of outliers was not significantly different between CVPMONITOR (n = 5, 5%) and CVPNADIR (n = 9, 9%, P = 0.27) but was greater with CVPCALCULATED (n = 16, 15%, P = 0.01). CONCLUSIONS In mechanically ventilated patients, CVPMONITOR is a reliable method for assessing CVPMEASURED Taking into account transmitted respiratory pressures, CVPCALCULATED had a higher proportion of outliers and precision than CVPNADIR.
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Affiliation(s)
- C Roger
- Division of Anesthesia Intensive Care Pain and Emergency, Nîmes University Hospital, Place de Professeur Robert Debré, Nîmes, 30029, France.,Faculty of Medicine, Montpellier-Nimes University I, Chemin du Carreau de Lane, Nîmes, 30000, France EA 2992, Chemin du Carreau de Lane, 30000 Nimes, France.,Burns, Trauma, and Critical Care Research Centre, The University of Queensland, Brisbane, Queensland, Australia
| | - L Muller
- Division of Anesthesia Intensive Care Pain and Emergency, Nîmes University Hospital, Place de Professeur Robert Debré, Nîmes, 30029, France.,Faculty of Medicine, Montpellier-Nimes University I, Chemin du Carreau de Lane, Nîmes, 30000, France EA 2992, Chemin du Carreau de Lane, 30000 Nimes, France
| | - B Riou
- Institute of Cardiometabolism and Nutrition and Department of Emergency medicine and Surgery, Assistance Publique-Hôpitaux de Paris (APHP), Sorbonne Universités, UPMC Univ Paris 06, UMRS INSERM 1156, Paris, France
| | - N Molinari
- PhyMedExp, University of Montpellier, INSERM U1046, CNRS UMR 9214, Montpellier hospital, Montpellier cedex 5, 34295
| | - B Louart
- Division of Anesthesia Intensive Care Pain and Emergency, Nîmes University Hospital, Place de Professeur Robert Debré, Nîmes, 30029, France.,Faculty of Medicine, Montpellier-Nimes University I, Chemin du Carreau de Lane, Nîmes, 30000, France EA 2992, Chemin du Carreau de Lane, 30000 Nimes, France
| | - H Kerbrat
- Division of Anesthesia Intensive Care Pain and Emergency, Nîmes University Hospital, Place de Professeur Robert Debré, Nîmes, 30029, France
| | - J-L Teboul
- Service de Réanimation médicale, Kremlin, Hôpital de Bicêtre, APHP, Le Bicêtre, France
| | - J-Y Lefrant
- Division of Anesthesia Intensive Care Pain and Emergency, Nîmes University Hospital, Place de Professeur Robert Debré, Nîmes, 30029, France .,Faculty of Medicine, Montpellier-Nimes University I, Chemin du Carreau de Lane, Nîmes, 30000, France EA 2992, Chemin du Carreau de Lane, 30000 Nimes, France
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Kaufmann T, Clement RP, Scheeren TWL, Saugel B, Keus F, Horst ICC. Perioperative goal-directed therapy: A systematic review without meta-analysis. Acta Anaesthesiol Scand 2018; 62:1340-1355. [PMID: 29978454 DOI: 10.1111/aas.13212] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 06/03/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Perioperative goal-directed therapy aims to optimise haemodynamics by titrating fluids, vasopressors and/or inotropes to predefined haemodynamic targets. Perioperative goal-directed therapy is a complex intervention composed of several independent component interventions. Trials on perioperative goal-directed therapy show conflicting results. We aimed to conduct a systematic review and meta-analysis to investigate the benefits and harms of perioperative goal-directed therapy. METHODS PubMED, EMBASE, Web of Science and Cochrane Library were searched. Trials were included if they had a perioperative goal-directed therapy protocol. The primary outcome was all-cause mortality. The first secondary outcome was serious adverse events excluding mortality. Risk of bias was assessed, and GRADE was used to evaluate quality of evidence. RESULTS One hundred and twelve randomised trials were included of which one trial (1%) had low risk of bias. Included trials varied in patients: types of surgery which was expected due to inclusion criteria; in intervention and comparison: timing of intervention, monitoring devices, haemodynamic variables, target values, use of fluids, vasopressors and/or inotropes as well as combinations of these within protocols; and in outcome: mortality was reported in 87 trials (78%). Due to substantial clinical heterogeneity also within the various types of surgery a meta-analysis of data, including subgroup analyses, as defined in our protocol was considered inappropriate. CONCLUSION Clinical heterogeneity in patients, interventions and outcomes in perioperative goal-directed therapy trials is too large to perform meta-analysis on all trials. Future trials and meta-analyses highly depend on universally agreed definitions on aspects beyond type of surgery of the complex intervention and its evaluation.
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Affiliation(s)
- Thomas Kaufmann
- Department of Anesthesiology University Medical Center Groningen University of Groningen Groningen The Netherlands
| | - Ramon P. Clement
- Department of Anesthesiology University Medical Center Groningen University of Groningen Groningen The Netherlands
| | - Thomas W. L. Scheeren
- Department of Anesthesiology University Medical Center Groningen University of Groningen Groningen The Netherlands
| | - Bernd Saugel
- Department of Anesthesiology University Medical Center Hamburg‐Eppendorf Hamburg Germany
| | - Frederik Keus
- Department of Critical Care University Medical Center Groningen University of Groningen Groningen The Netherlands
| | - Iwan C. C. Horst
- Department of Critical Care University Medical Center Groningen University of Groningen Groningen The Netherlands
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Agerskov M, Sørensen H, Højlund J, Secher NH, Foss NB. Pre-operative haemodynamic monitoring and resuscitation in hip fracture patients: Protocol for a prospective observational study. Acta Anaesthesiol Scand 2018; 62:1314-1320. [PMID: 29851062 DOI: 10.1111/aas.13163] [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] [Received: 03/01/2018] [Revised: 04/05/2018] [Accepted: 04/29/2018] [Indexed: 12/29/2022]
Abstract
BACKGROUND In a frail patient group often suffering from dehydration, hip fracture is potentially fatal partly because of the blood loss and thus deteriorated circulation. An important goal for haemodynamic monitoring and resuscitation is early detection of insufficient tissue perfusion. "The peripheral perfusion index" reflects changes in peripheral perfusion and blood volume. We hypothesize that hip fracture patients are hypovolaemic with poor peripheral perfusion and accordingly respond to controlled fluid resuscitation. The peripheral perfusion index might reflect restricted tissue perfusion in spite of stable central haemodynamic variables. METHODS This prospective observational study assess to what extend hip fracture patients suffer from hypovolaemia and respond to a stroke volume-guided fluid challenge. The secondary objectives are to evaluate correlation between the non-invasive peripheral perfusion index and minimally invasive measures of stroke volume, changes in blood volume and near-infrared spectroscopy determined tissue- and cerebral oxygenation and to compare results to prevalence of post-operative complications including mortality. We will include 50 patients (>65 years) presenting a hip fracture and treated in a multimodal fast-track regimen when written informed consent is available. DISCUSSION This is likely the first study to address pre-operative haemodynamic monitoring and resuscitation in hip fracture patients where adequate resuscitation is easily missed. We aim to evaluate feasibility of pre-operative stroke volume-guided haemodynamic optimization in the context of minimally- and non-invasive monitoring of peripheral perfusion and measure of blood volume.
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Affiliation(s)
- M. Agerskov
- Department of Anaesthesiology; Hvidovre Hospital; University of Copenhagen; Hvidovre Denmark
| | - H. Sørensen
- Department of Anaesthesiology; Abdominal Centre; Rigshospitalet; University of Copenhagen; Kobenhavn Denmark
| | - J. Højlund
- Department of Anaesthesiology; Hvidovre Hospital; University of Copenhagen; Hvidovre Denmark
| | - N. H. Secher
- Department of Anaesthesiology; Abdominal Centre; Rigshospitalet; University of Copenhagen; Kobenhavn Denmark
| | - N. B. Foss
- Department of Anaesthesiology; Hvidovre Hospital; University of Copenhagen; Hvidovre Denmark
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Ali A, Abdullah T, Sabanci PA, Dogan L, Orhan-Sungur M, Akinci IO. Comparison of ability of pulse pressure variation to predict fluid responsiveness in prone and supine position: an observational study. J Clin Monit Comput 2018; 33:573-580. [DOI: 10.1007/s10877-018-0195-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 08/09/2018] [Indexed: 01/10/2023]
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Lanspa MJ, Burk RE, Wilson EL, Hirshberg EL, Grissom CK, Brown SM. Echocardiogram-guided resuscitation versus early goal-directed therapy in the treatment of septic shock: a randomized, controlled, feasibility trial. J Intensive Care 2018; 6:50. [PMID: 30123511 PMCID: PMC6090604 DOI: 10.1186/s40560-018-0319-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 08/02/2018] [Indexed: 12/20/2022] Open
Abstract
Objective Echocardiography is often used to guide septic shock resuscitation, but without evidence for efficacy. We conducted an intensive care unit (ICU)-based randomized controlled feasibility trial comparing echocardiography-guided septic shock resuscitation (ECHO) with early goal-directed therapy (EGDT). Methods We conducted a single center, randomized controlled feasibility trial at a 468-bed academic tertiary care center in Utah, USA. Adult patients with early septic shock were assessed and treated at defined intervals over 6 h using an echocardiogram-guided resuscitation protocol or a slightly modified EGDT protocol. Feasibility outcomes were fluid balance, dobutamine administration, and time to lactate clearance. The primary clinical outcome was changed in sequential organ failure assessment score at 48 h (delta SOFA). Secondary outcomes included inpatient mortality, ICU-free days, and ventilator-free days at 28 days. Results Thirty participants, 15 per group, were randomized and completed the study. Baseline characteristics were similar between groups. Patients were randomized within a median of 3.5 h of meeting inclusion criteria but had received a median of 3 L crystalloid by then. Fluid administration during the study protocol was similar in both groups (median ECHO 0 vs EGDT 1 L, p = 0.61). Eleven (73%) subjects in each arm received ≤ 1 L fluid. Dobutamine administration was also similar (20% vs 13%, p > 0.99). Twenty-one patients (70%) had lactate clearance prior to the first study assessment. No difference was observed in delta SOFA (median − 4 for ECHO vs − 6 for EGDT, p = 0.10) nor mortality (33% ECHO vs 20% EGDT, p = 0.68). Conclusions No experimental separation was observed in this randomized, controlled feasibility trial. Early lactate clearance, coupled with substantial fluid administration before randomization, suggests that patients were already resuscitated before arrival in the ICU. Future trials of echocardiogram-guided sepsis resuscitation will likely need to enroll in the emergency department. Trial registration This study was retrospectively registered at clinicaltrials.gov (identifier NCT02354742, title Echo vs EGDT in severe sepsis and septic shock) on February 3, 2015. Registration was completed before review or analysis of any data. Electronic supplementary material The online version of this article (10.1186/s40560-018-0319-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Michael J Lanspa
- 1Critical Care Echocardiography Service, Intermountain Medical Center, 5121 South Cottonwood Street, Murray, UT 84107 USA.,2Division of Pulmonary and Critical Care Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132 USA
| | - Rebecca E Burk
- 2Division of Pulmonary and Critical Care Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132 USA
| | - Emily L Wilson
- 1Critical Care Echocardiography Service, Intermountain Medical Center, 5121 South Cottonwood Street, Murray, UT 84107 USA
| | - Eliotte L Hirshberg
- 1Critical Care Echocardiography Service, Intermountain Medical Center, 5121 South Cottonwood Street, Murray, UT 84107 USA.,2Division of Pulmonary and Critical Care Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132 USA.,3Division of Critical Care, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT 84132 USA
| | - Colin K Grissom
- 1Critical Care Echocardiography Service, Intermountain Medical Center, 5121 South Cottonwood Street, Murray, UT 84107 USA.,2Division of Pulmonary and Critical Care Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132 USA
| | - Samuel M Brown
- 1Critical Care Echocardiography Service, Intermountain Medical Center, 5121 South Cottonwood Street, Murray, UT 84107 USA.,2Division of Pulmonary and Critical Care Medicine, University of Utah School of Medicine, Salt Lake City, UT 84132 USA
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Zhang L, Dai F, Brackett A, Ai Y, Meng L. Association of conflicts of interest with the results and conclusions of goal-directed hemodynamic therapy research: a systematic review with meta-analysis. Intensive Care Med 2018; 44:1638-1656. [PMID: 30105599 DOI: 10.1007/s00134-018-5345-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 08/06/2018] [Indexed: 12/18/2022]
Abstract
PURPOSE The association between conflicts of interest (COI) and study results or article conclusions in goal-directed hemodynamic therapy (GDHT) research is unknown. METHODS Randomized controlled trials comparing GDHT with usual care were identified. COI were classified as industry sponsorship, author conflict, device loaner, none, or not reported. The association between COI and study results (complications and mortality) was assessed using both stratified meta-analysis and mixed effects meta-regression. The association between COI and an article's conclusion (graded as GDHT-favorable, neutral, or unfavorable) was investigated using logistic regression. RESULTS Of the 82 eligible articles, 43 (53%) had self-reported COI, and 50 (61%) favored GDHT. GDHT significantly reduced complications on the basis of the meta-analysis of studies with any type of COI, studies declaring no COI, industry-sponsored studies, and studies with author conflict but not on studies with a device loaner. However, no significant relationship between COI and the relative risk (GDHT vs. usual care) of developing complications was found on the basis of meta-regression (p = 0.25). No significant effect of GDHT was found on mortality. COI had a significant overall effect (p = 0.016) on the odds of having a GDHT-favorable vs. neutral conclusion based on 81 studies. Eighty-four percent of the industry-sponsored studies had a GDHT-favorable conclusion, while only 27% of the studies with a device loaner had the same conclusion grade. CONCLUSIONS The available evidence does not suggest a close relationship between COI and study results in GDHT research. However, a potential association may exist between COI and an article's conclusion in GDHT research.
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Affiliation(s)
- Lina Zhang
- Department of Critical Care Medicine, Central South University, Xiangya Hospital, Changsha, Hunan Province, China
| | - Feng Dai
- Department of Biostatistics, Yale University School of Public Health, New Haven, CT, USA
| | | | - Yuhang Ai
- Department of Critical Care Medicine, Central South University, Xiangya Hospital, Changsha, Hunan Province, China
| | - Lingzhong Meng
- Department of Anesthesiology, Yale University School of Medicine, 333 Cedar Street, TMP 3, New Haven, CT, 208051, USA.
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Perkins RE, Hollingsworth KG, Eggett C, MacGowan GA, Bates MGD, Trenell MI, Jakovljevic DG. Relationship between bioreactance and magnetic resonance imaging stroke volumes. Br J Anaesth 2018; 117:134-6. [PMID: 27317716 DOI: 10.1093/bja/aew164] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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Kaufmann KB, Baar W, Rexer J, Loeffler T, Heinrich S, Konstantinidis L, Buerkle H, Goebel U. Evaluation of hemodynamic goal-directed therapy to reduce the incidence of bone cement implantation syndrome in patients undergoing cemented hip arthroplasty - a randomized parallel-arm trial. BMC Anesthesiol 2018; 18:63. [PMID: 29875024 PMCID: PMC5991443 DOI: 10.1186/s12871-018-0526-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Accepted: 05/25/2018] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The bone cement implantation syndrome (BCIS) is a frequent and potentially disastrous intraoperative complication in patients undergoing cemented hip arthroplasty. Several risk factors have been identified, however randomized controlled trials to reduce the incidence of BCIS are still pending. We hypothesized that goal-directed hemodynamic therapy guided by esophageal Doppler monitoring (EDM) may reduce the incidence of BCIS in a randomized, controlled parallel-arm trial. METHODS After approval of the local ethics committee, 90 patients scheduled for cemented hip arthroplasty at the Medical Center - University of Freiburg were randomly assigned to either standard hemodynamic management or goal-directed therapy (GDT) guided by an esophageal Doppler monitoring-based algorithm. The primary endpoint was the incidence of overall BCIS including grade 1-3 after cementation of the femoral stem. Secondary endpoints included cardiac function, length of hospital stay and postoperative complications. RESULTS Ninety patients were finally analyzed. With regards to the primary endpoint, the overall incidence of BCIS showed no difference between the GDT and control group. Compared to the control group, patients of the GDT group showed a higher cardiac index before and after bone cement implantation (2.7 vs. 2.2 [l●min- 1●m- 2]; 2.8 vs. 2.4 [l●min- 1●m- 2]; P = 0.003, P = 0.042), whereas intraoperative amount of fluids and mean arterial pressure did not differ. CONCLUSIONS The implementation of a specific hemodynamic goal-directed therapy did not reduce the overall incidence of BCIS in patients undergoing cemented hip arthroplasty. TRIAL REGISTRATION This randomized clinical two-arm parallel study was approved by the local Ethics Committee, Freiburg, Germany [EK 160/15, PI: U. Goebel] and registered in the German Clinical Trials Register ( DRKS No. 00008778 , 16th of June, 2015).
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Affiliation(s)
- Kai B Kaufmann
- Department of Anaesthesiology and Critical Care, Medical Center - University of Freiburg, Hugstetter Strasse 55, 79106, Freiburg, Germany. .,Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | - Wolfgang Baar
- Department of Anaesthesiology and Critical Care, Medical Center - University of Freiburg, Hugstetter Strasse 55, 79106, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Judith Rexer
- Department of Anaesthesiology and Critical Care, Medical Center - University of Freiburg, Hugstetter Strasse 55, 79106, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Thomas Loeffler
- Department of Anaesthesiology and Critical Care, Medical Center - University of Freiburg, Hugstetter Strasse 55, 79106, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Sebastian Heinrich
- Department of Anaesthesiology and Critical Care, Medical Center - University of Freiburg, Hugstetter Strasse 55, 79106, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Lukas Konstantinidis
- Department of Orthopaedic and Trauma Surgery, Medical Center - University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Hartmut Buerkle
- Department of Anaesthesiology and Critical Care, Medical Center - University of Freiburg, Hugstetter Strasse 55, 79106, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Ulrich Goebel
- Department of Anaesthesiology and Critical Care, Medical Center - University of Freiburg, Hugstetter Strasse 55, 79106, Freiburg, Germany. .,Faculty of Medicine, University of Freiburg, Freiburg, Germany.
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Okwose NC, Chowdhury S, Houghton D, Trenell MI, Eggett C, Bates M, MacGowan GA, Jakovljevic DG. Comparison of cardiac output estimates by bioreactance and inert gas rebreathing methods during cardiopulmonary exercise testing. Clin Physiol Funct Imaging 2018; 38:483-490. [PMID: 28574213 DOI: 10.1111/cpf.12442] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 05/02/2017] [Indexed: 11/30/2022]
Abstract
PURPOSE This study assessed the agreement between cardiac output estimated by inert gas rebreathing and bioreactance methods at rest and during exercise. METHODS Haemodynamic measurements were assessed in 20 healthy individuals (11 females, nine males; aged 32 ± 10 years) using inert gas rebreathing and bioreactance methods. Gas exchange and haemodynamic data were measured simultaneously under rest and different stages (i.e. 30, 60, 90, 120, 150 and 180 W) of progressive graded cardiopulmonary exercise stress testing using a bicycle ergometer. RESULTS At rest, bioreactance produced significantly higher cardiac output values than inert gas rebreathing (7·8 ± 1·4 versus 6·5 ± 1·7 l min-1 , P = 0·01). At low-to-moderate exercise intensities (i.e. 30-90 W), bioreactance produced significantly higher cardiac outputs compared with rebreathing method (P<0·05). At workloads of 120 W and above, there was no significant difference in cardiac outputs between the two methods (P = 0·10). There was a strong relationship between the two methods (r = 0·82, P = 0·01). Bland-Altman analysis including rest and exercise data showed that inert gas rebreathing reported 1·95 l min-1 lower cardiac output than bioreactance, with lower and upper limits of agreement of -3·1-7·07 l min-1 . Analysis of peak exercise data showed a mean difference of 0·4 l min-1 (lower and upper limits of agreement of -4·9-5·7 l min-1 ) between both devices. CONCLUSION Bioreactance and inert gas rebreathing methods show acceptable levels of agreement for estimating cardiac output at higher levels of metabolic demand. However, they cannot be used interchangeably due to strong disparity in results at rest and low-to-moderate exercise intensity.
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Affiliation(s)
- Nduka C Okwose
- Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle Upon Tyne, UK
| | - Shakir Chowdhury
- Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle Upon Tyne, UK
| | - David Houghton
- Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle Upon Tyne, UK
| | - Michael I Trenell
- Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle Upon Tyne, UK
- RCUK Centre for Ageing and Vitality, Newcastle University, Newcastle Upon Tyne, UK
| | - Christopher Eggett
- Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle Upon Tyne, UK
| | - Matthew Bates
- Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle Upon Tyne, UK
| | - Guy A MacGowan
- Cardiology Department, Freeman Hospital and Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Djordje G Jakovljevic
- Institute of Cellular Medicine, Medical School, Newcastle University, Newcastle Upon Tyne, UK
- RCUK Centre for Ageing and Vitality, Newcastle University, Newcastle Upon Tyne, UK
- Clinical Research Facility, Royal Victoria Infirmary, Newcastle Upon Tyne, UK
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Abstract
PURPOSE OF REVIEW For the past 15 years, there has been a strong push to use goal-directed protocols for resuscitating critically ill patients and to manage perioperative patients. However, recent large clinical trials have failed to find evidence of improved outcome with this approach. RECENT FINDINGS A striking feature in the recent three large prospective randomized trials of septic patients and the one in high-risk perioperative patients is that outcomes in the control groups have markedly improved. This implies improvement in care and clinical acumen. Perhaps the clinical approach should be more toward further helping clinicians with their clinical choices. A good example is cardiac output. The objective of most hemodynamic interventions is to increase cardiac output. It would thus make sense to assess what happened to cardiac output after the intervention to determine if the intervention actually increased cardiac output. If it did not, another therapy should be chosen. I call this a flow-directed responsive protocol. SUMMARY A clinical approach that uses monitored values such as cardiac output as a feedback tool to evaluate the response to therapeutic interventions in individual patients may be better than protocols that set fixed targets for all study participants.
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Sun S, Peeters WH, Bezemer R, Long X, Paulussen I, Aarts RM, Noordergraaf GJ. Finger and forehead photoplethysmography-derived pulse-pressure variation and the benefits of baseline correction. J Clin Monit Comput 2018; 33:65-75. [PMID: 29644558 PMCID: PMC6314999 DOI: 10.1007/s10877-018-0140-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 04/05/2018] [Indexed: 11/25/2022]
Abstract
To non-invasively predict fluid responsiveness, respiration-induced pulse amplitude variation (PAV) in the photoplethysmographic (PPG) signal has been proposed as an alternative to pulse pressure variation (PPV) in the arterial blood pressure (ABP) signal. However, it is still unclear how the performance of the PPG-derived PAV is site-dependent during surgery. The aim of this study is to compare finger- and forehead-PPG derived PAV in their ability to approach the value and trend of ABP-derived PPV. Furthermore, this study investigates four potential confounding factors, (1) baseline variation, (2) PPV, (3) ratio of respiration and heart rate, and (4) perfusion index, which might affect the agreement between PPV and PAV. In this work, ABP, finger PPG, and forehead PPG were continuously recorded in 29 patients undergoing major surgery in the operating room. A total of 91.2 h data were used for analysis, from which PAV and PPV were calculated and compared. We analyzed the impact of the four factors using a multiple linear regression (MLR) analysis. The results show that compared with the ABP-derived PPV, finger-derived PAV had an agreement of 3.2 ± 5.1%, whereas forehead-PAV had an agreement of 12.0 ± 9.1%. From the MLR analysis, we found that baseline variation was a factor significantly affecting the agreement between PPV and PAV. After correcting for respiration-induced baseline variation, the agreements for finger- and forehead-derived PAV were improved to reach an agreement of − 1.2 ± 3.8% and 3.3 ± 4.8%, respectively. To conclude, finger-derived PAV showed better agreement with ABP-derived PPV compared to forehead-derived PAV. Baseline variation was a factor that significantly affected the agreement between PPV and PAV. By correcting for the baseline variation, improved agreements were obtained for both the finger and forehead, and the difference between these two agreements was diminished. The tracking abilities for both finger- and forehead-derived PAV still warrant improvement for wide use in clinical practice. Overall, our results show that baseline-corrected finger- and forehead-derived PAV may provide a non-invasive alternative for PPV.
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Affiliation(s)
- Shaoxiong Sun
- Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands.
- Philips Research, Eindhoven, The Netherlands.
| | | | | | - Xi Long
- Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
- Philips Research, Eindhoven, The Netherlands
| | - Igor Paulussen
- Philips Research, Eindhoven, The Netherlands
- Elisabeth-Tweesteden Hospital, Tilburg, The Netherlands
| | - Ronald M Aarts
- Department of Electrical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
- Philips Research, Eindhoven, The Netherlands
| | - Gerrit J Noordergraaf
- Philips Research, Eindhoven, The Netherlands
- Elisabeth-Tweesteden Hospital, Tilburg, The Netherlands
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46
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Echocardiography in the Intensive Care Unit. CURRENT CARDIOVASCULAR IMAGING REPORTS 2017. [DOI: 10.1007/s12410-017-9438-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fayed NA, Yassen KA, Abdulla AR. Comparison Between 2 Strategies of Fluid Management on Blood Loss and Transfusion Requirements During Liver Transplantation. J Cardiothorac Vasc Anesth 2017; 31:1741-1750. [DOI: 10.1053/j.jvca.2017.02.177] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Indexed: 12/16/2022]
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48
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Abstract
PURPOSE OF REVIEW Fluid management remains a controversial subject in perioperative medicine and organ transplantation. Various case series, anecdotes and tradition guide many fluid choices, especially when good evidence is lacking. Recent advances in the understanding of pharmacokinetic and pharmodynamic profiles of fluids, as well as transplantation physiology and pathophysiology, can guide us in new approaches to common problems. RECENT FINDINGS This review is intended to describe some of the latest thinking on subjects like saline-induced hyperchloraemic metabolic acidosis, the use of goal-directed approaches to volume resuscitation in perioperative medicine, the relative lack of evidence for low central venous pressure techniques in liver transplantation, some of the drug effects of intravenous fluids, as well as the complex issue of different crystalloids and colloids in renal transplantation. SUMMARY Fluid therapy in transplant medicine is usually best practiced using goal-directed approaches and balanced electrolyte formulations when possible, even in renal failure. Some fluids may exert drug effects that could alter organ preservation and reperfusion, while the certain hydroxyethyl starches appear to be less toxic in renal transplantation than first suspected, especially when clinicians consider free water requirements in these settings.
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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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