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Pratomo BY, Sudadi S, Setianto BY, Novenanto TT, Raksawardana YK, Rayhan A, Kurniawaty J. Intraoperative Goal-Directed Perfusion in Cardiac Surgery with Cardiopulmonary Bypass: The Roles of Delivery Oxygen Index and Cardiac Index. Ann Thorac Cardiovasc Surg 2024; 30:23-00189. [PMID: 38684395 PMCID: PMC11082497 DOI: 10.5761/atcs.ra.23-00188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 04/01/2024] [Indexed: 05/02/2024] Open
Abstract
PURPOSE Goal-directed perfusion (GDP) refers to individualized goal-directed therapy using comprehensive monitoring and optimizing the delivery of oxygen during cardiopulmonary bypass (CPB). This study aims to determine whether the intraoperative GDP protocol method has better outcomes compared to conventional methods. METHODS We searched the PubMed, Central, and Scopus databases up to October 12, 2023. We primarily examined the GDP protocol in adult cardiac surgery, using CPB with oxygen delivery index (DO2I) and cardiac index (CI) as the main parameters. RESULTS In all, 1128 participants from seven studies were included in our analysis. The results showed significant differences in the duration of intensive care unit (ICU) stays (p = 0.01), with a mean difference of -0.33 (-0.59 to 0.07), and hospital length of stay (LOS) (p = 0.0002), with a mean difference of -0.84 (-1.29 to -0.39). There was also a notable reduction in postoperative complications (p <0.00001), odds ratio (OR) of 0.43 (0.32-0.60). However, there was no significant decrease in mortality rate (p = 0.54), OR of 0.77 (0.34-1.77). CONCLUSION Postoperative acute kidney injury and ICU and hospital LOS are significantly reduced when GDP protocols with indicators of flow management, oxygen delivery index, and CI are used in intraoperative cardiac surgery using CPB.
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Affiliation(s)
- Bhirowo Yudo Pratomo
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr. Sardjito General Hospital, Yogyakarta, Indonesia
| | - Sudadi Sudadi
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr. Sardjito General Hospital, Yogyakarta, Indonesia
| | - Budi Yuli Setianto
- Department of Cardiology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr. Sardjito General Hospital, Yogyakarta, Indonesia
| | - Tandean Tommy Novenanto
- Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | | | - Amar Rayhan
- Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - Juni Kurniawaty
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Dr. Sardjito General Hospital, Yogyakarta, Indonesia
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Reddy VS, Stout DM, Fletcher R, Barksdale A, Parikshak M, Johns C, Gerdisch M. Advanced artificial intelligence-guided hemodynamic management within cardiac enhanced recovery after surgery pathways: A multi-institution review. JTCVS OPEN 2023; 16:480-489. [PMID: 38204636 PMCID: PMC10774974 DOI: 10.1016/j.xjon.2023.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 05/31/2023] [Accepted: 06/07/2023] [Indexed: 01/12/2024]
Abstract
Objective The study objective was to report early outcomes of integrating Hypotension Prediction Index-guided hemodynamic management within a cardiac enhanced recovery pathway on total initial ventilation hours and length of stay in the intensive care unit. Methods A multicenter, historical control, observational analysis of implementation of a hemodynamic management tool within enhanced recovery pathways was conducted by identifying cardiac surgery cases from 3 sites during 2 time periods, August 1 to December 31, 2019 (preprogram), and April 1 to August 31, 2021 (program). Reoperations, emergency (salvage), or cases requiring mechanical assist were excluded. Data were extracted from electronic medical records and chart reviews. Two primary outcome variables were length of stay in the intensive care unit (using Society of Thoracic Surgeons definitions) and acute kidney injury (using modified Kidney Disease Improving Global Outcomes criteria). One secondary outcome variable, total initial ventilation hours, used Society of Thoracic Surgeons definitions. Differences in length of stay in the intensive care unit and total ventilation time were analyzed using Kruskal-Wallis and stepwise multiple linear regression. Acute kidney injury stage used chi-square and stepwise cumulative logistic regression. Results A total of 1404 cases (795 preprogram; 609 program) were identified. Overall reductions of 6.8 and 4.4 hours in intensive care unit length of stay (P = .08) and ventilation time (P = .03) were found, respectively. No significant association between proportion of patients identified with acute kidney injury by stage and period was found. Conclusions Adding artificial intelligence-guided hemodynamic management to cardiac enhanced recovery pathways resulted in associated reduced time in the intensive care unit for patients undergoing nonemergency cardiac surgery across institutions in a real-world setting.
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Affiliation(s)
- V. Seenu Reddy
- Cardiothoracic Surgery, TriStar Centennial Medical Center, Nashville, Tenn
| | - David M. Stout
- Cardiovascular Anesthesiology, Swedish Heart and Vascular Institute, Seattle, Wash
| | - Robert Fletcher
- Biostatistics, Swedish Heart and Vascular Institute, Seattle, Wash
| | - Andrew Barksdale
- Cardiothoracic Surgery, Franciscan Health Indianapolis, Indianapolis, Ind
| | - Manesh Parikshak
- Cardiothoracic Surgery, Franciscan Health Indianapolis, Indianapolis, Ind
| | - Chanice Johns
- Cardiothoracic Surgery, Franciscan Health Indianapolis, Indianapolis, Ind
| | - Marc Gerdisch
- Cardiothoracic Surgery, Franciscan Health Indianapolis, Indianapolis, Ind
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Givtaj N, Hosseinzadeh E, Hadipourzadeh FS, Faritous Z, Askari MH, Ghanbari Garekani M. Goal-directed therapy in cardiovascular surgery: A case series study. J Cardiovasc Thorac Res 2023; 15:186-192. [PMID: 38028714 PMCID: PMC10590465 DOI: 10.34172/jcvtr.2023.31838] [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: 04/08/2023] [Accepted: 07/29/2023] [Indexed: 12/01/2023] Open
Abstract
Hemodynamic and intravascular volume monitoring has been utilized and significantly improved thanks to the technology revolution. Goal-Directed Therapy (GDT) derived from this advanced monitoring is beneficial for complex surgeries, and it shifted the medical approaches from static therapy to more personalized functional treatments. Conventional monitoring methods such as blood pressure, heart rate, urinary output, and central venous pressure are commonly used. However, studies have shown these routine parameters often cannot precisely estimate the quality of tissue perfusion. Tissue hypoperfusion and hypoxia play a crucial role in initiating a systemic inflammatory response after prolonged surgeries, resulting in unstable hemodynamic condition of the patients. Several studies reported the importance of GDT in non-cardiac surgeries and there are few reports on cardiac surgeries. However, tissue perfusion and fluid management are more critical in complex and prolonged cardiovascular surgeries to avoid complications such as low cardiac output syndrome and renal or pulmonary dysfunction. Different advanced hemodynamic monitorings have been utilized perioperatively in cardiac surgery to help decision-making on inotrope and fluid management. In this article we present 5 cases of usefulness hemodynamic monitoring in patients who underwent cardiovascular surgeries.
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Affiliation(s)
| | | | | | | | | | - Maryam Ghanbari Garekani
- Rajaie Cardiovascular Medical and Research Center, Iran University of Medical Sciences, Tehran, Iran
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4
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Tribuddharat S, Sathitkarnmanee T, Ngamsaengsirisup K, Sornpirom S. Efficacy of early goal-directed therapy using FloTrac/EV1000 to improve postoperative outcomes in patients undergoing off-pump coronary artery bypass surgery: a randomized controlled trial. J Cardiothorac Surg 2022; 17:196. [PMID: 35989328 PMCID: PMC9394084 DOI: 10.1186/s13019-022-01933-4] [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] [Received: 02/11/2022] [Accepted: 08/14/2022] [Indexed: 11/18/2022] Open
Abstract
Background Early goal-directed therapy (EGDT) using FloTrac reduced length of stay (LOS) in intensive care (ICU) and hospital among patients undergoing coronary artery bypass graft (CABG) with a cardiopulmonary bypass. However, this platform in off-pump CABG (OPCAB) has received scant attention, so we evaluated the efficacy of EGDT using FloTrac/EV1000 as a modality for improving postoperative outcomes in patients undergoing OPCAB. Methods Forty patients undergoing OPCAB were randomized to the EV1000 or Control group. The Control group received fluid, inotropic, or vasoactive drugs (at the discretion of the attending anesthesiologist) to maintain a mean arterial pressure 65–90 mmHg; central venous pressure 8–12 mmHg; urine output ≥ 0.5 mL kg−1 h−1; SpO2 > 95%; and hematocrit ≥ 30%. The EV1000 group achieved identical targets using information from the FloTrac/EV1000. The goals included stroke volume variation < 13%; cardiac index (CI) of 2.2–4.0 L min−1 m−2; and systemic vascular resistance index of 1500–2500 dynes s−1 cm−5 m−2. Results The EV1000 group had a shorter LOS in ICU (mean difference − 1.3 d, 95% CI − 1.8 to − 0.8; P < 0.001). The ventilator time for both groups was comparable (P = 0.316), but the hospital stay for the EV1000 group was shorter (mean difference − 1.4 d, 95% CI − 2.1 to − 0.6; P < 0.001). Conclusions EGDT using FloTrac/EV1000 compared to conventional protocol reduces LOS in ICU and hospital among patients undergoing OPCAB. Trial registration This study was retrospectively registered at www.ClinicalTrials.gov (NCT04292951) on 3 March 2020.
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Tribuddharat S, Sathitkarnmanee T, Ngamsangsirisup K, Nongnuang K. Efficacy of Intraoperative Hemodynamic Optimization Using FloTrac/EV1000 Platform for Early Goal-Directed Therapy to Improve Postoperative Outcomes in Patients Undergoing Coronary Artery Bypass Graft with Cardiopulmonary Bypass: A Randomized Controlled Trial. MEDICAL DEVICES-EVIDENCE AND RESEARCH 2021; 14:201-209. [PMID: 34234581 PMCID: PMC8253926 DOI: 10.2147/mder.s316033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/10/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose Early goal-directed therapy (EGDT) using the FloTrac system reportedly improved postoperative outcomes among high-risk patients undergoing non-cardiac surgery. This study's objective was to evaluate the FloTrac/EV1000 platform's efficacy for improving postoperative outcomes in cardiac surgery. Patients and Methods Eighty-six adults undergoing coronary artery bypass graft (CABG) with cardiopulmonary bypass (CPB) in 2 tertiary referral centers were randomized to the EGDT or Control group. The Control group was managed with standard care to achieve the following goals: mean arterial pressure 65-90 mmHg; central venous pressure 8-12 mmHg; urine output ≥0.5 mL·kg-1·h-1; oxygen saturation >95%; and hematocrit 26-30%. The EGDT group was managed to reach similar goals using information from the FloTrac/EV1000 monitor. The targets were stroke volume variation <13%; stroke volume index 33-65 mL·beat-1·m-2; cardiac index 2.2-4.0 L·min-1·m-2; and systemic vascular resistance index 1600-2500 dynes·s·cm-5·m-2. Results The intensive care unit (ICU) stay of the EGDT group was significantly shorter (mean difference -29.5 h; 95% CI -17.2 to -41.8, P < 0.001). The mechanical ventilation time was also shorter in the EGDT group (mean difference -11.3 h; 95% CI -2.7 to -19.9, P = 0.011). The hospital LOS was shorter in the EGDT group (mean difference -1.1 d; 95% CI -0.1 to -2.1, P = 0.038). Conclusion EGDT using FloTrac/EV1000 can be applied in CABG with CPB to improve postoperative outcomes.
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Affiliation(s)
- Sirirat Tribuddharat
- Department of Anesthesiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand
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Mathis MR, Duggal NM, Janda AM, Fennema JL, Yang B, Pagani FD, Maile MD, Hofer RE, Jewell ES, Engoren MC. Reduced Echocardiographic Inotropy Index after Cardiopulmonary Bypass Is Associated With Complications After Cardiac Surgery: An Institutional Outcomes Study. J Cardiothorac Vasc Anesth 2021; 35:2732-2742. [PMID: 33593647 DOI: 10.1053/j.jvca.2021.01.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/15/2021] [Accepted: 01/19/2021] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Despite advances in echocardiography and hemodynamic monitoring, limited progress has been made to effectively quantify left ventricular function during cardiac surgery. Traditional measures, including left ventricular ejection fraction (LVEF) and cardiac index, remain dependent on loading conditions; more complex measures remain impractical in a dynamic surgical setting. However, the Smith-Madigan Inotropy Index (SMII) and potential-to-kinetic energy ratio (PKR) offer promise as measures calculable during cardiac surgery and potentially predictive of outcomes. Using echocardiographic and hemodynamic monitoring data, the authors aimed to calculate SMII and PKR values after cardiopulmonary bypass and understand associations with postoperative outcomes, adjusting for previously identified risk factors. DESIGN Observational cohort study. SETTING Tertiary care academic hospital. PATIENTS The study comprised 189 elective adult cardiac surgical procedures from 2015-2016. INTERVENTION None. MEASUREMENTS AND MAIN RESULTS The primary outcome was postoperative mortality or organ system complication (stroke, prolonged ventilation, reintubation, cardiac arrest, acute kidney injury, new-onset atrial fibrillation). After adjustment, SMII <0.83 W/m2 independently predicted the primary outcome (adjusted odds ratio 2.19, 95% confidence interval 1.08-4.42); whereas PKR, LVEF, and cardiac index demonstrated no associations. When SMII and PKR were incorporated into a EuroSCORE II risk model, predictive performance improved (net reclassification index improvement 0.457; p = 0.001); whereas a model incorporating LVEF and cardiac index demonstrated no improvement (0.130; p = 0.318). CONCLUSION The present study demonstrated that SMII, but not PKR, as a measure of cardiac function was associated with major complications. The study's data may guide investigations of more suitable perioperative goal-directed therapies to reduce complications after cardiac surgery.
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Affiliation(s)
- Michael R Mathis
- Department of Anesthesiology, University of Michigan Health System, Ann Arbor, MI; Department of Computational Medicine and Bioinformatics, University of Michigan Health System, Ann Arbor, MI.
| | - Neal M Duggal
- Department of Anesthesiology, University of Michigan Health System, Ann Arbor, MI
| | - Allison M Janda
- Department of Anesthesiology, University of Michigan Health System, Ann Arbor, MI
| | - Jordan L Fennema
- Department of Anesthesiology, University of Michigan Health System, Ann Arbor, MI
| | - Bo Yang
- Department of Cardiac Surgery, University of Michigan Health System, Ann Arbor, MI
| | - Francis D Pagani
- Department of Cardiac Surgery, University of Michigan Health System, Ann Arbor, MI
| | - Michael D Maile
- Department of Anesthesiology, University of Michigan Health System, Ann Arbor, MI
| | - Ryan E Hofer
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Elizabeth S Jewell
- Department of Anesthesiology, University of Michigan Health System, Ann Arbor, MI
| | - Milo C Engoren
- Department of Anesthesiology, University of Michigan Health System, Ann Arbor, MI
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Ramsingh D, Hu H, Yan M, Lauer R, Rabkin D, Gatling J, Floridia R, Martinez M, Dorotta I, Razzouk A. Perioperative Individualized Goal Directed Therapy for Cardiac Surgery: A Historical-Prospective, Comparative Effectiveness Study. J Clin Med 2021; 10:jcm10030400. [PMID: 33494308 PMCID: PMC7864512 DOI: 10.3390/jcm10030400] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 12/25/2022] Open
Abstract
Introduction: Cardiac surgery patients are at increased risk for post-operative complications and prolonged length of stay. Perioperative goal directed therapy (GDT) has demonstrated utility for non-cardiac surgery, however, GDT is not common for cardiac surgery. We initiated a quality improvement (QI) project focusing on the implementation of a GDT protocol, which was applied from the immediate post-bypass period into the intensive care unit (ICU). Our hypothesis was that this novel GDT protocol would decrease ICU length of stay and possibly improve postoperative outcomes. Methods: This was a historical prospective, QI study for patients undergoing cardiac surgery requiring cardiopulmonary bypass (CPB). Integral to the QI project was education towards all associated providers on the concepts related to GDT. The protocol involved identifying patient specific targets for cardiac index and mean arterial pressure. These targets were maintained from the post-CPB period to the first 12 h in the ICU. Statistical comparisons were performed between the year after GDT therapy was launched to the last two years prior to protocol implementation. The primary outcome was ICU length of stay. Results: There was a significant decrease in ICU length of stay when comparing the year after the protocol initiation to years prior, from a median of 6.19 days to 4 days (2017 vs. 2019, p < 0.0001), and a median of 5.88 days to 4 days (2018 vs. 2019, p < 0.0001). Secondary outcomes demonstrated a significant reduction in total administered volumes of inotropic medication(milrinone). All other vasopressors demonstrated no differences across years. Hospital length of stay comparisons did not demonstrate a significant reduction. Conclusion: These results suggest that an individualized goal directed therapy for cardiac surgery patients can reduce ICU length of stay and decrease amount of inotropic therapy.
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Affiliation(s)
- Davinder Ramsingh
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, CA 92354, USA; (D.R.); (H.H.); (R.L.); (J.G.); (M.M.); (I.D.)
| | - Huayong Hu
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, CA 92354, USA; (D.R.); (H.H.); (R.L.); (J.G.); (M.M.); (I.D.)
| | - Manshu Yan
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, CA 92354, USA; (D.R.); (H.H.); (R.L.); (J.G.); (M.M.); (I.D.)
- Correspondence: ; Tel.: +1-909-558-4475; Fax: +1-909-558-4143
| | - Ryan Lauer
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, CA 92354, USA; (D.R.); (H.H.); (R.L.); (J.G.); (M.M.); (I.D.)
| | - David Rabkin
- Department of Cardiothoracic Surgery, Loma Linda University Medical Center, Loma Linda, CA 92354, USA; (D.R.); (R.F.); (A.R.)
| | - Jason Gatling
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, CA 92354, USA; (D.R.); (H.H.); (R.L.); (J.G.); (M.M.); (I.D.)
| | - Rosario Floridia
- Department of Cardiothoracic Surgery, Loma Linda University Medical Center, Loma Linda, CA 92354, USA; (D.R.); (R.F.); (A.R.)
| | - Mckinzey Martinez
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, CA 92354, USA; (D.R.); (H.H.); (R.L.); (J.G.); (M.M.); (I.D.)
| | - Ihab Dorotta
- Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, CA 92354, USA; (D.R.); (H.H.); (R.L.); (J.G.); (M.M.); (I.D.)
| | - Anees Razzouk
- Department of Cardiothoracic Surgery, Loma Linda University Medical Center, Loma Linda, CA 92354, USA; (D.R.); (R.F.); (A.R.)
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Tomescu DR, Scarlatescu E, Bubenek-Turconi ŞI. Can goal-directed fluid therapy decrease the use of blood and hemoderivates in surgical patients? Minerva Anestesiol 2020; 86:1346-1352. [DOI: 10.23736/s0375-9393.20.14154-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Abstract
An appropriate perioperative infusion management is pivotal for the perioperative outcome of the patient. Optimization of the perioperative fluid treatment often results in enhanced postoperative outcome, reduced perioperative complications and shortened hospitalization. Hypovolemia as well as hypervolemia can lead to an increased rate of perioperative complications. The main goal is to maintain perioperative euvolemia by goal-directed therapy (GDT), a combination of fluid management and inotropic medication, to optimize perfusion conditions in the perioperative period; however, perioperative fluid management should also include the preoperative and postoperative periods. This encompasses the preoperative administration of carbohydrate-rich drinks up to 2 h before surgery. In the postoperative period, patients should be encouraged to start per os hydration early and excessive i.v. fluid administration should be avoided. Implementation of a comprehensive multimodal, goal-directed fluid management within an enhanced recovery after surgery (ERAS) protocol is efficient but the exact status of indovodual items remains unclear at present.
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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: 128] [Impact Index Per Article: 25.6] [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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Giglio M, Dalfino L, Puntillo F, Brienza N. Hemodynamic goal-directed therapy and postoperative kidney injury: an updated meta-analysis with trial sequential analysis. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2019; 23:232. [PMID: 31242941 PMCID: PMC6593609 DOI: 10.1186/s13054-019-2516-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 06/13/2019] [Indexed: 12/18/2022]
Abstract
Background Perioperative goal-directed therapy (GDT) reduces the risk of renal injury. However, several questions remain unanswered, such as target, kind of patients and surgery, and role of fluids and inotropes. We therefore update a previous analysis, including all studies published in the meanwhile, to clarify the clinical impact of this strategy on acute kidney injury. Main body Randomized controlled trials enrolling adult patients undergoing major surgery were considered. GDT was defined as perioperative monitoring and manipulation of hemodynamic parameters to reach normal or supranormal values by fluids alone or with inotropes. Trials comparing the effects of GDT and standard hemodynamic therapy were considered. Primary outcome was acute kidney injury, whichever definition was used. Meta-analytic techniques (analysis software RevMan, version 5.3) were used to combine studies, using random-effect odds ratios (OR) and 95% confidence intervals (CI). Trial sequential analyses were performed including all trials and considering only low risk of bias trials. Sixty-five trials with an overall sample of 9308 patients were included. OR for the development of renal injury was 0.64 (95% CI, 0.62–0.87; p = 0.0003), with no statistical heterogeneity. Trial sequential analyses and sensitivity analysis including studies with low risk of bias confirmed the main results. A significant decrease in renal injury rate was observed in studies that adopted cardiac output and oxygen delivery as hemodynamic target and that used both fluids and inotropes. The postoperative kidney injury rate was significantly lower in trials enrolling “high-risk” patients and major abdominal and orthopedic surgery. Short conclusion The present meta-analysis suggests that targeting GDT to perioperative systemic oxygen delivery, by means of fluids and inotropes, can be the best way to improve renal perfusion and oxygenation in high-risk patients undergoing major abdominal and orthopedic surgery. Electronic supplementary material The online version of this article (10.1186/s13054-019-2516-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Mariateresa Giglio
- Anesthesia and Intensive Care Unit, Department of Emergency and Organ Transplantation, University of Bari, Piazza G. Cesare, 11, 70124, Bari, Italy.
| | - Lidia Dalfino
- Anesthesia and Intensive Care Unit, Department of Emergency and Organ Transplantation, University of Bari, Piazza G. Cesare, 11, 70124, Bari, Italy
| | - Filomena Puntillo
- Anesthesia and Intensive Care Unit, Department of Emergency and Organ Transplantation, University of Bari, Piazza G. Cesare, 11, 70124, Bari, Italy
| | - Nicola Brienza
- Anesthesia and Intensive Care Unit, Department of Emergency and Organ Transplantation, University of Bari, Piazza G. Cesare, 11, 70124, Bari, Italy
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Johnston LE, Thiele RH, Hawkins RB, Downs EA, Jaeger JM, Brooks C, Ghanta RK, Ailawadi G, Kron IL, Isbell JM. Goal-directed resuscitation following cardiac surgery reduces acute kidney injury: A quality initiative pre-post analysis. J Thorac Cardiovasc Surg 2019; 159:1868-1877.e1. [PMID: 31272751 DOI: 10.1016/j.jtcvs.2019.03.135] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 03/22/2019] [Accepted: 03/30/2019] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Acute kidney injury (AKI) occurs in 20% of patients following cardiac surgery. To reduce AKI in our institution, we instituted a quality improvement (QI) initiative using a goal-directed volume resuscitation protocol. Our protocol was designed to achieve quantifiable physiologic goals (eg, cardiac index > 2.5 L/min/m2, mean arterial pressure > 65 mm Hg) using fluid and vasoactive agents. The objective of this study was to evaluate AKI in the pre- and post-QI eras, hypothesizing that AKI incidence would decrease in the post-QI era. METHODS In this observational retrospective cohort study, we identified patients who underwent cardiac operations from July 2011 to July 2015 with a risk score available. Kidney injury was determined using the lowest postoperative GFR within 7 days of surgery and standard Risk, Injury, Failure, Loss of Kidney Function, and End-Stage Kidney Disease (RIFLE) classification criteria. The primary outcome was the rate of AKI, as defined by glomerular filtration rate-based RIFLE classification criteria injury, in the post- versus pre-QI eras. RESULTS A total of 1979 patients were included, of whom 725 were in the pre-QI cohort, and 1254 in the post-QI cohort. Overall, rates of RIFLE classification criteria risk, injury and failure were 27.5%, 5.9%, and 3.6%, respectively. RIFLE classification criteria injury saw the largest decrease in the post-QI cohort (8.1% vs 4.6%; P = .001). Multivariable analysis demonstrated a 37% reduction in the odds of AKI in the post-QI cohort (adjusted odds ratio, 0.63; 95% confidence interval, 0.43-0.90). CONCLUSIONS A goal-directed volume resuscitation protocol centered on patient fluid responsiveness is associated with significantly reduced risk for AKI after cardiac surgery. Protocol-driven approaches should be employed in intensive care units to improve outcomes.
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Affiliation(s)
- Lily E Johnston
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia Health System, University of Virginia Health System, Charlottesville, Va
| | - Robert H Thiele
- Department of Anesthesiology, University of Virginia Health System, University of Virginia Health System, Charlottesville, Va
| | - Robert B Hawkins
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia Health System, University of Virginia Health System, Charlottesville, Va
| | - Emily A Downs
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia Health System, University of Virginia Health System, Charlottesville, Va
| | - James M Jaeger
- Department of Anesthesiology, University of Virginia Health System, University of Virginia Health System, Charlottesville, Va
| | - Charles Brooks
- Department of Medicine, University of Virginia Health System, University of Virginia Health System, Charlottesville, Va
| | - Ravi K Ghanta
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia Health System, University of Virginia Health System, Charlottesville, Va
| | - Gorav Ailawadi
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia Health System, University of Virginia Health System, Charlottesville, Va
| | - Irving L Kron
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia Health System, University of Virginia Health System, Charlottesville, Va
| | - James M Isbell
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY.
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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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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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Perel A. Perioperative goal-directed therapy with uncalibrated pulse contour methods: impact on fluid management and postoperative outcome. Br J Anaesth 2017; 119:541-543. [DOI: 10.1093/bja/aex282] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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16
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Li P, Qu LP, Qi D, Shen B, Wang YM, Xu JR, Jiang WH, Zhang H, Ding XQ, Teng J. Significance of perioperative goal-directed hemodynamic approach in preventing postoperative complications in patients after cardiac surgery: a meta-analysis and systematic review. Ann Med 2017; 49:343-351. [PMID: 27936959 DOI: 10.1080/07853890.2016.1271956] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
PURPOSE Goal-directed hemodynamic therapy (GDT) is used to prevent hypoperfusion resulting from surgery. The objective of this study was to analyze the efficacy and importance of perioperative GDT. METHODS PUBMED, MEDLINE, CENTRAL, and Google Scholar databases were searched until 17 June 2016 using the search terms: cardiac output, cardiac surgical procedures, hemodynamics, goal-directed therapy, and intraoperative. Randomized-controlled trials with pre-emptive hemodynamic intervention for cardiac surgical population versus standard hemodynamic therapy were included. RESULTS Nine studies were included with a total of 1148 patients. The overall analysis revealed no significant difference in the all-cause mortality (pooled peto OR =0.58, 95%CI =0.27-1.525, p = 0.164), duration of mechanical ventilation (pooled difference in mean= -1.48, 95%CI= -3.24 to 0.28, p = 0.099), or length of intensive care unit (ICU) stay (pooled difference in mean= -9.10, 95%CI= -20.14 to 1.93, p = 0.106) between patients in the GDT and control groups. Patients in the GDP group were associated with shorter hospital stay than those in the control group (pooled difference in mean= -1.52, 95%CI= -2.31 to -0.73, p < 0.001). CONCLUSION GDT reduces the length of hospital stay compared with the standard of care. Further studies are necessary to continually assess the benefit of GDT following major surgery. Key Messages The results of this analysis revealed no significant difference between cardiac surgery patients receiving goal-directed hemodynamic therapy (GDT) or conventional fluid therapy in terms of the all-cause mortality, duration of mechanical intervention, and length of ICU-stay. The length of hospital stay was significantly reduced in patients treated with GDT compare to conventional fluid therapy. GDT may have limited benefit in reducing mortality; however, the association to shorter length of hospital stay may suggest that better hemodynamic balance can facilitate postoperative recovery.
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Affiliation(s)
- Peng Li
- a Department of Nephrology , Yantai Yuhuangding Hospital , Yantai , Shandong , China
| | - Li-Ping Qu
- b Department of Obstetrics , Yantai Yuhuangding Hospital , Yantai , Shandong , China
| | - Dong Qi
- a Department of Nephrology , Yantai Yuhuangding Hospital , Yantai , Shandong , China
| | - Bo Shen
- c Department of Nephrology , Zhongshan Hospital, Shanghai Medical College, Fudan University , Shanghai , China.,d Kidney and Dialysis Institute of Shanghai , Shanghai , China
| | - Yi-Mei Wang
- c Department of Nephrology , Zhongshan Hospital, Shanghai Medical College, Fudan University , Shanghai , China.,d Kidney and Dialysis Institute of Shanghai , Shanghai , China
| | - Jia-Rui Xu
- c Department of Nephrology , Zhongshan Hospital, Shanghai Medical College, Fudan University , Shanghai , China.,d Kidney and Dialysis Institute of Shanghai , Shanghai , China
| | - Wu-Hua Jiang
- c Department of Nephrology , Zhongshan Hospital, Shanghai Medical College, Fudan University , Shanghai , China.,d Kidney and Dialysis Institute of Shanghai , Shanghai , China
| | - Hao Zhang
- c Department of Nephrology , Zhongshan Hospital, Shanghai Medical College, Fudan University , Shanghai , China.,d Kidney and Dialysis Institute of Shanghai , Shanghai , China
| | - Xiao-Qiang Ding
- c Department of Nephrology , Zhongshan Hospital, Shanghai Medical College, Fudan University , Shanghai , China.,d Kidney and Dialysis Institute of Shanghai , Shanghai , China.,e Shanghai Key Laboratory of Kidney and Blood Purification , Shanghai , China
| | - Jie Teng
- c Department of Nephrology , Zhongshan Hospital, Shanghai Medical College, Fudan University , Shanghai , China.,d Kidney and Dialysis Institute of Shanghai , Shanghai , China.,e Shanghai Key Laboratory of Kidney and Blood Purification , Shanghai , China
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17
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Kapoor PM, Magoon R, Rawat R, Mehta Y. Perioperative utility of goal-directed therapy in high-risk cardiac patients undergoing coronary artery bypass grafting: "A clinical outcome and biomarker-based study". Ann Card Anaesth 2017; 19:638-682. [PMID: 27716694 PMCID: PMC5070323 DOI: 10.4103/0971-9784.191552] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Goal-directed therapy (GDT) encompasses guidance of intravenous (IV) fluid and vasopressor/inotropic therapy by cardiac output or similar parameters to help in early recognition and management of high-risk cardiac surgical patients. With the aim of establishing the utility of perioperative GDT using robust clinical and biochemical outcomes, we conducted the present study. This multicenter randomized controlled study included 130 patients of either sex, with European system for cardiac operative risk evaluation ≥3 undergoing coronary artery bypass grafting on cardiopulmonary bypass. The patients were randomly divided into the control and GDT group. All the participants received standardized care; arterial pressure monitored through radial artery, central venous pressure (CVP) through a triple lumen in the right internal jugular vein, electrocardiogram, oxygen saturation, temperature, urine output per hour, and frequent arterial blood gas (ABG) analysis. In addition, cardiac index (CI) monitoring using FloTrac™ and continuous central venous oxygen saturation (ScVO2) using PreSep™ were used in patients in the GDT group. Our aim was to maintain the CI at 2.5–4.2 L/min/m2, stroke volume index 30–65 ml/beat/m2, systemic vascular resistance index 1500–2500 dynes/s/cm5/m2, oxygen delivery index 450–600 ml/min/m2, continuous ScVO2 >70%, and stroke volume variation <10%; in addition to the control group parameters such as CVP 6–8 mmHg, mean arterial pressure 90–105 mmHg, normal ABG values, oxygen saturation, hematocrit value >30%, and urine output >1 ml/kg/h. The aims were achieved by altering the administration of IV fluids and doses of inotropes or vasodilators. The data of sixty patients in each group were analyzed in view of ten exclusions. The average duration of ventilation (19.89 ± 3.96 vs. 18.05 ± 4.53 h, P = 0.025), hospital stay (7.94 ± 1.64 vs. 7.17 ± 1.93 days, P = 0.025), and Intensive Care Unit (ICU) stay (3.74 ± 0.59 vs. 3.41 ± 0.75 days, P = 0.012) was significantly less in the GDT group, compared to the control group. The extra volume added and the number of inotropic dose adjustments were significantly more in the GDT group. The two groups did not differ in duration of inotropic use, mortality, and other complications. The perioperative continuation of GDT affected the early decline in the lactate levels after 6 h in ICU, whereas the control group demonstrated a settling lactate only after 12 h. Similarly, the GDT group had significantly lower levels of brain natriuretic peptide, neutrophil gelatinase-associated lipocalin levels as compared to the control. The study clearly depicts the advantage of GDT for a favorable postoperative outcome in high-risk cardiac surgical patients.
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Affiliation(s)
| | - Rohan Magoon
- Department of Cardiac Anaesthesia, CTC, AIIMS, New Delhi, India
| | - Rajinder Rawat
- Department of Cardiac Anaesthesiology, Salalah Heart Center, Salalah, Oman
| | - Yatin Mehta
- Department of Anaesthesiology and Critical Care, Medanta - The Medicity, Gurgaon, Haryana, India
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18
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Kapoor PM, Magoon R, Rawat RS, Mehta Y, Taneja S, Ravi R, Hote MP. Goal-directed therapy improves the outcome of high-risk cardiac patients undergoing off-pump coronary artery bypass. Ann Card Anaesth 2017; 20:83-89. [PMID: 28074802 PMCID: PMC5290703 DOI: 10.4103/0971-9784.197842] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background: There has been a constant emphasis on developing management strategies to improve the outcome of high-risk cardiac patients undergoing surgical revascularization. The performance of coronary artery bypass surgery on an off-pump coronary artery bypass (OPCAB) avoids the risks associated with extra-corporeal circulation. The preliminary results of goal-directed therapy (GDT) for hemodynamic management of high-risk cardiac surgical patients are encouraging. The present study was conducted to study the outcome benefits with the combined use of GDT with OPCAB as compared to the conventional hemodynamic management. Material and Method: Patients with the European System for Cardiac Operative Risk Evaluation ≥3 scheduled for OPCAB were randomly divided into two groups; the control and GDT groups. The GDT group included the monitoring and optimization of advanced parameters, including cardiac index (CI), systemic vascular resistance index, oxygen delivery index, stroke volume variation; continuous central venous oxygen saturation (ScVO2), global end-diastolic volume, and extravascular lung water (EVLW), using FloTrac™, PreSep™, and EV-1000® monitoring panels, in addition to the conventional hemodynamic management in the control group. The hemodynamic parameters were continuously monitored for 48 h in Intensive Care Unit (ICU) and corrected according to GDT protocol. A total of 163 patients consented for the study. Result: Seventy-five patients were assigned to the GDT group and 88 patients were in the control group. In view of 9 exclusions from the GDT group and 12 exclusions from control group, 66 patients in the GDT group and 76 patients in control group completed the study. Conclusion: The length of stay in hospital (LOS-H) (7.42 ± 1.48 vs. 5.61 ± 1.11 days, P < 0.001) and ICU stay (4.2 ± 0.82 vs. 2.53 ± 0.56 days, P < 0.001) were significantly lower in the GDT group as compared to control group. The duration of inotropes (3.24 ± 0.73 vs. 2.89 ± 0.68 h, P = 0.005) was also significantly lower in the GDT group. The two groups did not differ in duration of ventilated hours, mortality, and other complications. The parameters such as ScVO2, CI, and EVLW had a strong negative and positive correlation with the LOS-H with r values of − 0.331, −0.319, and 0.798, respectively. The study elucidates the role of a goal-directed hemodynamic optimization for improved outcome in high-risk cardiac patients undergoing OPCAB.
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Affiliation(s)
| | - Rohan Magoon
- Department of Cardiac Anaesthesia, Cardio Thoracic Centre, AIIMS, New Delhi, India
| | - Rajinder Singh Rawat
- Department of Cardiac Anaesthesiology, Salalah Heart Center, Salalah, Sultanate of Oman
| | - Yatin Mehta
- Department of Critical Care and Anaesthesiology, Medanta - The Medicity, Gurgaon, Haryana, India
| | - Sameer Taneja
- Department of Cardiac Anaesthesia, Naval Base Hospital, Mumbai, Maharashtra, India
| | - R Ravi
- Department of Statistics, Lady Shri Ram College, University of Delhi, New Delhi, India
| | - Milind P Hote
- Department of Cardiothoracic and Vascular Surgery, AIIMS, New Delhi, India
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19
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Allegranzi B, Zayed B, Bischoff P, Kubilay NZ, de Jonge S, de Vries F, Gomes SM, Gans S, Wallert ED, Wu X, Abbas M, Boermeester MA, Dellinger EP, Egger M, Gastmeier P, Guirao X, Ren J, Pittet D, Solomkin JS. New WHO recommendations on intraoperative and postoperative measures for surgical site infection prevention: an evidence-based global perspective. THE LANCET. INFECTIOUS DISEASES 2016; 16:e288-e303. [PMID: 27816414 DOI: 10.1016/s1473-3099(16)30402-9] [Citation(s) in RCA: 471] [Impact Index Per Article: 58.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 08/28/2016] [Accepted: 09/13/2016] [Indexed: 12/11/2022]
Abstract
Surgical site infections (SSIs) are the most common health-care-associated infections in developing countries, but they also represent a substantial epidemiological burden in high-income countries. The prevention of these infections is complex and requires the integration of a range of preventive measures before, during, and after surgery. No international guidelines are available and inconsistencies in the interpretation of evidence and recommendations in national guidelines have been identified. Considering the prevention of SSIs as a priority for patient safety, WHO has developed evidence-based and expert consensus-based recommendations on the basis of an extensive list of preventive measures. We present in this Review 16 recommendations specific to the intraoperative and postoperative periods. The WHO recommendations were developed with a global perspective and they take into account the balance between benefits and harms, the evidence quality level, cost and resource use implications, and patient values and preferences.
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Affiliation(s)
- Benedetta Allegranzi
- Infection Prevention and Control Global Unit, Service Delivery and Safety, WHO, Geneva, Switzerland.
| | - Bassim Zayed
- Infection Prevention and Control Global Unit, Service Delivery and Safety, WHO, Geneva, Switzerland
| | - Peter Bischoff
- Institute of Hygiene and Environmental Medicine, Charité-University Medicine, Berlin, Germany
| | - N Zeynep Kubilay
- Infection Prevention and Control Global Unit, Service Delivery and Safety, WHO, Geneva, Switzerland
| | - Stijn de Jonge
- Department of Surgery, Academic Medical Center Amsterdam, Amsterdam, Netherlands
| | - Fleur de Vries
- Department of Surgery, Academic Medical Center Amsterdam, Amsterdam, Netherlands
| | | | - Sarah Gans
- Department of Surgery, Academic Medical Center Amsterdam, Amsterdam, Netherlands
| | - Elon D Wallert
- Department of Surgery, Academic Medical Center Amsterdam, Amsterdam, Netherlands
| | - Xiuwen Wu
- Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Mohamed Abbas
- Infection Control Programme, University of Geneva Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Marja A Boermeester
- Department of Surgery, Academic Medical Center Amsterdam, Amsterdam, Netherlands
| | | | - Matthias Egger
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
| | - Petra Gastmeier
- Institute of Hygiene and Environmental Medicine, Charité-University Medicine, Berlin, Germany
| | | | - Jianan Ren
- Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Didier Pittet
- Infection Control Programme, University of Geneva Hospitals and Faculty of Medicine, Geneva, Switzerland; WHO Collaborating Centre on Patient Safety (Infection Control and Improving Practices), University of Geneva Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Joseph S Solomkin
- OASIS Global, Cincinnati, OH, USA; University of Cincinnati College of Medicine, Cincinnati, OH, USA
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20
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Chemtob RA, Eskesen TG, Moeller-Soerensen H, Perner A, Ravn HB. Systematic review of the association of venous oxygenation and outcome in adult hospitalized patients. Acta Anaesthesiol Scand 2016; 60:1367-1378. [PMID: 27620815 DOI: 10.1111/aas.12810] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 08/01/2016] [Accepted: 08/22/2016] [Indexed: 12/13/2022]
Abstract
BACKGROUND Adequate tissue oxygenation is necessary to maintain organ function. Low venous oxygen saturation may reflect impaired tissue oxygenation, and may be used as a predictive tool and a therapeutic target to improve the care of critically ill patients. We therefore conducted a systematic review of the existing literature reflecting these aspects. METHODS We searched electronic databases in January 2016 for relevant studies on venous oxygen saturation for treatment guidance and patient outcome. We sub-grouped results based on patient groups and setting. RESULTS The search resulted in 5590 papers of which 42 studies were deemed relevant. The majority of the studies in cardiac and abdominal surgery patients showed associations between low venous oxygen saturation and increased mortality and morbidity, in particular increased length of intensive care. However, the cut-off level for low venous oxygen saturation varied between < 55 and 70% and all studies had high risk of bias. In patients with septic shock, recent randomized trials showed no benefit of early resuscitation guided by venous oxygen saturation. CONCLUSION Low venous oxygen saturation may be associated with increased mortality, morbidity and length of intensive care in patients following cardiac or abdominal surgery. However, the wide range of cut-off levels and low quality of evidence hampers the clinical application. In patients with septic shock, the present evidence does not support goal-directed therapy using venous oxygen saturation during early resuscitation.
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Affiliation(s)
- R. A. Chemtob
- Department of Cardiothoracic Anaesthesiology; University hospital of Copenhagen, Rigshospitalet; Copenhagen Denmark
| | - T. G. Eskesen
- Department of Intensive Care; University hospital of Copenhagen; Rigshospitalet; Copenhagen Denmark
| | - H. Moeller-Soerensen
- Department of Cardiothoracic Anaesthesiology; University hospital of Copenhagen, Rigshospitalet; Copenhagen Denmark
| | - A. Perner
- Department of Intensive Care; University hospital of Copenhagen; Rigshospitalet; Copenhagen Denmark
| | - H. B. Ravn
- Department of Cardiothoracic Anaesthesiology; University hospital of Copenhagen, Rigshospitalet; Copenhagen Denmark
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Abstract
PURPOSE OF REVIEW This article reviews the current evidence behind goal-directed therapy (GDT) in multiple medical settings. RECENT FINDINGS Although some studies advocate for the use of GDT, others do not and more studies are necessary to evaluate the efficacy of GDT in medicine. Previously accepted guidelines for treating patients in septic shock which include GDT in their algorithms are not supported by the findings in recent randomized, controlled trials. No generally accepted guidelines for GDT are available for perioperative use, but there is evidence supporting GDT in high-risk surgery such as major abdominal surgery and cardiac surgery. Clinicians should be aware of the potential benefits of GDT in these settings and use these evidence-based findings to help guide clinical decisions in these patient populations. SUMMARY The use of GDT may be beneficial depending on the clinical setting, but more evidence supporting its use is necessary before it can be considered standard of care.
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Romagnoli S, Rizza A, Ricci Z. Fluid Status Assessment and Management During the Perioperative Phase in Adult Cardiac Surgery Patients. J Cardiothorac Vasc Anesth 2016; 30:1076-84. [DOI: 10.1053/j.jvca.2015.11.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Indexed: 01/25/2023]
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Abstract
OBJECTIVES In this review, we discuss hemodynamic monitoring modalities, including their application, the interpretation of data, limitations, and impact on outcomes. DATA SOURCE MEDLINE, PubMed. CONCLUSIONS One of the tenets of critical care medicine is to ensure adequate tissue oxygenation. This assessment must be timely and accurate to optimize outcomes. The clinical assessment of cardiac function, cardiac output, and tissue oxygenation based on the physical examination and standard hemodynamic variables, although an indispensable part of this exercise, has significant limitations. The use of adjunctive hemodynamic monitoring modalities provides a much more objective, accurate, and timely assessment of the patient's hemodynamic profile and is invaluable for assessing the patient's clinical status, clinical trajectory, and response to interventions.
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Lomivorotov VV, Efremov SM, Kirov MY, Fominskiy EV, Karaskov AM. Low-Cardiac-Output Syndrome After Cardiac Surgery. J Cardiothorac Vasc Anesth 2016; 31:291-308. [PMID: 27671216 DOI: 10.1053/j.jvca.2016.05.029] [Citation(s) in RCA: 156] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Vladimir V Lomivorotov
- Department of Anesthesiology and Intensive Care, Research Institute of Circulation Pathology, Novosibirsk, Russia.
| | - Sergey M Efremov
- Department of Anesthesiology and Intensive Care, Research Institute of Circulation Pathology, Novosibirsk, Russia
| | - Mikhail Y Kirov
- Department of Anesthesiology and Intensive Care Medicine, Northern State Medical University, Arkhangelsk, Russia
| | - Evgeny V Fominskiy
- Department of Anesthesiology and Intensive Care, Research Institute of Circulation Pathology, Novosibirsk, Russia
| | - Alexander M Karaskov
- Department of Cardiac Surgery, Research Institute of Circulation Pathology, Novosibirsk, Russia
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Hendy A, Bubenek Ş. Pulse waveform hemodynamic monitoring devices: recent advances and the place in goal-directed therapy in cardiac surgical patients. Rom J Anaesth Intensive Care 2016; 23:55-65. [PMID: 28913477 DOI: 10.21454/rjaic.7518.231.wvf] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Hemodynamic monitoring has evolved and improved greatly during the past decades as the medical approach has shifted from a static to a functional approach. The technological advances have led to innovating calibrated or not, but minimally invasive and noninvasive devices based on arterial pressure waveform (APW) analysis. This systematic clinical review outlines the physiologic rationale behind these recent technologies. We describe the strengths and the limitations of each method in terms of accuracy and precision of measuring the flow parameters (stroke volume, cardiac output) and dynamic parameters which predict the fluid responsiveness. We also analyzed the place of the APW monitoring devices in goal-directed therapy (GDT) protocols in cardiac surgical patients. According to the data from the three GDT-randomized control trials performed in cardiac surgery (using two types of APW techniques PiCCO and FloTrac/Vigileo), these devices did not demonstrate that they played a role in decreasing mortality, but only decreasing the ventilation time and the ICU and hospital length of stay.
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Affiliation(s)
- Adham Hendy
- Carol Davila University of Medicine and Pharmacy, Bucharest, 1 Department of Cardiovascular Anaesthesia and Intensive Care, C.C. Iliescu Emergency Institute for Cardiovascular Diseases, Bucharest, Romania
| | - Şerban Bubenek
- Carol Davila University of Medicine and Pharmacy, Bucharest, 1 Department of Cardiovascular Anaesthesia and Intensive Care, C.C. Iliescu Emergency Institute for Cardiovascular Diseases, Bucharest, Romania
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Walker LJC, Young PJ. Fluid Administration, Vasopressor Use and Patient Outcomes in a Group of High-Risk Cardiac Surgical Patients Receiving Postoperative Goal-Directed Haemodynamic Therapy: A Pilot Study. Anaesth Intensive Care 2015; 43:617-27. [DOI: 10.1177/0310057x1504300511] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The role of goal-directed therapy in high-risk cardiac surgical patients has not been determined. This study sought to observe the effect of a postoperative standardised haemodynamic protocol (SHP) on the administration of fluid and vasoactive drugs after high-risk cardiac surgery. This was an interventional pilot study. In 2010 to 2011, the SHP was introduced to the ICU at Wellington Regional Hospital, Wellington, New Zealand, for the perioperative management of patients undergoing high-risk cardiac surgery. A pulmonary artery catheter was inserted in the patients in the study group and fluids and supportive medications were provided in the ICU according to a protocol that targeted a cardiac index ≥2 l/min/m2, mixed venous oxygen saturation ≥60% and a mean arterial pressure of 65 to 75 mmHg. Data from 40 consecutive high-risk cardiac surgical patients assigned to this protocol were compared with a matched cohort of 40 consecutive high-risk cardiac surgical patients receiving ‘usual care’ in 2009. Baseline characteristics were similar in the two groups. There was no significant difference in the duration of noradrenaline infusion in the SHP cohort compared to historical controls (median [IQR] 18.5 hours [31.63] versus 18 hours [18.3]; P=0.35), despite patients receiving more fluid in their first 12 hours in the ICU (mean 4687 ml [SD±2284 ml] versus 1889 ml [SD±1344 ml]; P <0.001). The SHP cohort had a higher rate of reintubation (4 in 37 [10.8%] versus 0 in 40 [0%]; P=0.049). The SHP delivered significantly more fluid, but did not reduce the duration of noradrenaline infusion, compared to usual care.
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Affiliation(s)
- L. J. C. Walker
- Cardiothoracic and Vascular Intensive Care Unit, Auckland City Hospital, Auckland, New Zealand
| | - P. J. Young
- Intensive Care Unit, Wellington Regional Hospital, Wellington, New Zealand
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Haas SA, Saugel B, Trepte CJ, Reuter DA. [Goal-directed hemodynamic therapy: Concepts, indications and risks]. Anaesthesist 2015; 64:494-505. [PMID: 26081011 DOI: 10.1007/s00101-015-0035-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Goal-directed hemodynamic therapy is becoming increasingly more interesting for anesthesiologists and intensive care physicians. Meta-analyses of studies evaluating perioperative therapy algorithms demonstrated a reduction of postoperative morbidity compared to the previous clinical practices. In this review article the basic concepts of goal-directed hemodynamic therapy and the principles of previously employed therapy algorithms are described and discussed. Furthermore, the questions of how these therapy strategies can be transferred into daily clinical practice and whether these therapeutic approaches might even bear risks for patients are elucidated.
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Affiliation(s)
- S A Haas
- Klinik und Poliklinik für Anästhesiologie, Zentrum für Anästhesiologie und Intensivmedizin, Martinistr. 52, 20246, Hamburg, Deutschland,
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Parke RL, McGuinness SP, Gilder E, McCarthy LW, Cowdrey KAL. A randomised feasibility study to assess a novel strategy to rationalise fluid in patients after cardiac surgery. Br J Anaesth 2015; 115:45-52. [PMID: 25991758 DOI: 10.1093/bja/aev118] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/13/2015] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND After cardiac surgery, patients receive large amounts of fluid in the Intensive Care Unit (ICU). We plan to conduct a multi-centre randomised controlled trial, of a conservative fluid regime, in patients after cardiac surgery, and have reported results of a feasibility study that evaluated efficacy and safety of the proposed regime. METHODS After ethical approval, a single-centre, prospectively randomised interventional study was undertaken. Participants were randomised to either usual care, or to a protocolised algorithm, utilising stroke volume variation, to guide fluid administration to patients who were deemed to have inadequate cardiac output and were likely to be volume responsive. The study protocol lasted from ICU admission to de-sedation or 24 h, whichever occurred first. RESULTS We randomised 144 subjects over 9 months. Less bolus fluid and less total overall fluid volume was administered in the intervention group (median (IQR) 1620 ml (500-3410) and 2525 ml (1440-5250; P<0.001), compared with the usual care group (2050 ml (910-4280) and 2980 ml (2070-6580; P=0.001), from ICU admission to extubation. There was no significant difference in incidence of acute kidney injury or the average amount of fluid administered to the usual care group at the beginning compared with the end of the study. CONCLUSION It is both possible and safe to achieve a significant reduction in the amount of fluid administered to patients, allocated to a conservative fluid protocol. These results suggest that a planned multi-centre study is both justified and feasible. CLINICAL TRIAL REGISTRATION Australia New Zealand Clinical Trials Registry www.anzctr.org.au (ACTRN12612000754842).
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Affiliation(s)
- R L Parke
- Cardiothoracic and Vascular Intensive Care Unit, Auckland City Hospital, Auckland, New Zealand Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia Medical Research Institute of New Zealand, Wellington, New Zealand
| | - S P McGuinness
- Cardiothoracic and Vascular Intensive Care Unit, Auckland City Hospital, Auckland, New Zealand Australian and New Zealand Intensive Care Research Centre, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Australia Medical Research Institute of New Zealand, Wellington, New Zealand
| | - E Gilder
- Cardiothoracic and Vascular Intensive Care Unit, Auckland City Hospital, Auckland, New Zealand
| | - L W McCarthy
- Cardiothoracic and Vascular Intensive Care Unit, Auckland City Hospital, Auckland, New Zealand
| | - K-A L Cowdrey
- Cardiothoracic and Vascular Intensive Care Unit, Auckland City Hospital, Auckland, New Zealand
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Meybohm P, Shander A, Zacharowski K. Should we restrict erythrocyte transfusion in early goal directed protocols? BMC Anesthesiol 2015; 15:75. [PMID: 25956725 PMCID: PMC4428088 DOI: 10.1186/s12871-015-0054-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 04/29/2015] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND Early goal-directed therapy has been endorsed in the guidelines of the Surviving Sepsis Campaign as a key strategy among patients presenting with severe sepsis or septic shock. But more importantly, early goal-directed therapy also became standard care for non-septic critically ill patients and was adopted for high-risk surgical patients. DISCUSSION Importantly, transfusion of red blood cells is a central part of many protocols of early goal-directed therapy to indicate the need for use of inotropes and red blood cells, as both central venous saturation and hematocrit are used as transfusion triggers. However, burgeoning data has strongly linked transfusion with worse clinical outcomes. If correct, could these early goal-directed therapy 'bundles' have better outcome if a restrictive transfusion practice is adopted? SUMMARY Early goal-directed therapy has evolved as standard care for most of critically ill patients, and many protocols contain transfusion of red blood cells targeting high hemoglobin level as a key element. As red blood cell transfusions are associated with increased morbidity and mortality, transfusion thresholds need to be more individualized.
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Affiliation(s)
- Patrick Meybohm
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.
| | - Aryeh Shander
- Department of Anesthesiology and Critical Care and Hyperbaric Medicine, Englewood Hospital and Medical Center, Anesthesiology and Critical Care and Hyperbaric Medicine, Englewood, NJ, USA.
| | - Kai Zacharowski
- Department of Anaesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.
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Perioperative fluid therapy: a statement from the international Fluid Optimization Group. Perioper Med (Lond) 2015; 4:3. [PMID: 25897397 PMCID: PMC4403901 DOI: 10.1186/s13741-015-0014-z] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Accepted: 03/13/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Perioperative fluid therapy remains a highly debated topic. Its purpose is to maintain or restore effective circulating blood volume during the immediate perioperative period. Maintaining effective circulating blood volume and pressure are key components of assuring adequate organ perfusion while avoiding the risks associated with either organ hypo- or hyperperfusion. Relative to perioperative fluid therapy, three inescapable conclusions exist: overhydration is bad, underhydration is bad, and what we assume about the fluid status of our patients may be incorrect. There is wide variability of practice, both between individuals and institutions. The aims of this paper are to clearly define the risks and benefits of fluid choices within the perioperative space, to describe current evidence-based methodologies for their administration, and ultimately to reduce the variability with which perioperative fluids are administered. METHODS Based on the abovementioned acknowledgements, a group of 72 researchers, well known within the field of fluid resuscitation, were invited, via email, to attend a meeting that was held in Chicago in 2011 to discuss perioperative fluid therapy. From the 72 invitees, 14 researchers representing 7 countries attended, and thus, the international Fluid Optimization Group (FOG) came into existence. These researches, working collaboratively, have reviewed the data from 162 different fluid resuscitation papers including both operative and intensive care unit populations. This manuscript is the result of 3 years of evidence-based, discussions, analysis, and synthesis of the currently known risks and benefits of individual fluids and the best methods for administering them. RESULTS The results of this review paper provide an overview of the components of an effective perioperative fluid administration plan and address both the physiologic principles and outcomes of fluid administration. CONCLUSIONS We recommend that both perioperative fluid choice and therapy be individualized. Patients should receive fluid therapy guided by predefined physiologic targets. Specifically, fluids should be administered when patients require augmentation of their perfusion and are also volume responsive. This paper provides a general approach to fluid therapy and practical recommendations.
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Fellahi JL, Brossier D, Dechanet F, Fischer MO, Saplacan V, Gérard JL, Hanouz JL. Early goal-directed therapy based on endotracheal bioimpedance cardiography: a prospective, randomized controlled study in coronary surgery. J Clin Monit Comput 2014; 29:351-8. [PMID: 25380955 DOI: 10.1007/s10877-014-9611-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 08/27/2014] [Indexed: 01/01/2023]
Abstract
The objective was to compare the impact of an early goal-directed hemodynamic therapy based on cardiac output monitoring (Endotracheal Cardiac Output Monitor, ECOM) with a standard of care on postoperative outcome following coronary surgery. This prospective, controlled, parallel-arm trial randomized 100 elective primary coronary artery bypass grafting patients to a study group (ECOM; n = 50) or a control group (control; n = 50). In the ECOM group, hemodynamic therapy was guided by respiratory stroke volume variation and cardiac index given by the ECOM system. A standard of care was used in the control. Goal-directed therapy was started immediately after induction of anesthesia and continued until arrival in the intensive care unit (ICU). The primary endpoint was the time when patients fulfilled discharge criteria from hospital (possible hospital discharge). Secondary endpoints were the hospital discharge, the time to reach extubation, the length of stay in ICU, the number of major adverse cardiac events, and in-hospital mortality. Patients in the ECOM group received more often fluid loading and dobutamine. The time to reach extubation was reduced in the ECOM group: 510 min [360-1,110] versus 570 min [320-1,520], P = 0.005. No significant differences were found between both groups for possible hospital discharge [Hazard Ratio = 0.96 (95 % CI 0.64-1.45)] and hospital discharge [Hazard Ratio = 1.20 (95 % CI 0.79-1.81)]. A mini-invasive early goal-directed hemodynamic therapy based on ECOM can reduce the time to reach extubation but fails to significantly reduce the length of stay in hospital and the rate of major cardiac morbidity.
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Affiliation(s)
- Jean-Luc Fellahi
- Department of Anesthesiology and Critical Care Medicine, Hôpital Cardiovasculaire et Pneumologique Louis Pradel, Hospices Civils de Lyon, 28 avenue du Doyen Lépine, 69677, Lyon-Bron Cedex, France,
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Fergerson BD, Manecke GR. Goal-directed therapy in cardiac surgery: are we there yet? J Cardiothorac Vasc Anesth 2014; 27:1075-8. [PMID: 24267575 DOI: 10.1053/j.jvca.2013.08.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Byron D Fergerson
- Department of Anesthesiology University of California San Diego San Diego, CA
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Validation of cardiac output monitoring based on uncalibrated pulse contour analysis vs transpulmonary thermodilution during off-pump coronary artery bypass grafting. Br J Anaesth 2014; 112:1024-31. [DOI: 10.1093/bja/aet489] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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Geisen M, Spray D, Nicholas Fletcher S. Echocardiography-Based Hemodynamic Management in the Cardiac Surgical Intensive Care Unit. J Cardiothorac Vasc Anesth 2014; 28:733-44. [DOI: 10.1053/j.jvca.2013.08.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Indexed: 11/11/2022]
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Arulkumaran N, Corredor C, Hamilton MA, Ball J, Grounds RM, Rhodes A, Cecconi M. Cardiac complications associated with goal-directed therapy in high-risk surgical patients: a meta-analysis. Br J Anaesth 2014; 112:648-59. [PMID: 24413429 DOI: 10.1093/bja/aet466] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Patients with limited cardiopulmonary reserve are at risk of mortality and morbidity after major surgery. Augmentation of oxygen delivery index (DO2I) with i.v. fluids and inotropes (goal-directed therapy, GDT) has been shown to reduce postoperative mortality and morbidity in high-risk patients. Concerns regarding cardiac complications associated with fluid challenges and inotropes may prevent clinicians from performing GDT in patients who need it most. We hypothesized that GDT is not associated with an increased risk of cardiac complications in high-risk, non-cardiac surgical patients. We performed a systematic search of Medline, Embase, and CENTRAL databases for randomized controlled trials (RCTs) of GDT in high-risk surgical patients. Studies including cardiac surgery, trauma, and paediatric surgery were excluded. We reviewed the rates of all cardiac complications, arrhythmias, myocardial ischaemia, and acute pulmonary oedema. Meta-analyses were performed using RevMan software. Data are presented as odds ratios (ORs), [95% confidence intervals (CIs)], and P-values. Twenty-two RCTs including 2129 patients reported cardiac complications. GDT was associated with a reduction in total cardiovascular (CVS) complications [OR=0.54, (0.38-0.76), P=0.0005] and arrhythmias [OR=0.54, (0.35-0.85), P=0.007]. GDT was not associated with an increase in acute pulmonary oedema [OR=0.69, (0.43-1.10), P=0.12] or myocardial ischaemia [OR=0.70, (0.38-1.28), P=0.25]. Subgroup analysis revealed the benefit is most pronounced in patients receiving fluid and inotrope therapy to achieve a supranormal DO2I, with the use of minimally invasive cardiac output monitors. Treatment of high-risk surgical patients GDT is not associated with an increased risk of cardiac complications; GDT with fluids and inotropes to optimize DO2I during early GDT reduces postoperative CVS complications.
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Affiliation(s)
- N Arulkumaran
- Department of Intensive Care Medicine, St George's Hospital, London SW17 0QT, UK
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Individually optimized hemodynamic therapy reduces complications and length of stay in the intensive care unit: a prospective, randomized controlled trial. Anesthesiology 2014; 119:824-36. [PMID: 23732173 DOI: 10.1097/aln.0b013e31829bd770] [Citation(s) in RCA: 122] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND The authors hypothesized that goal-directed hemodynamic therapy, based on the combination of functional and volumetric hemodynamic parameters, improves outcome in patients with cardiac surgery. Therefore, a therapy guided by stroke volume variation, individually optimized global end-diastolic volume index, cardiac index, and mean arterial pressure was compared with an algorithm based on mean arterial pressure and central venous pressure. METHODS This prospective, controlled, parallel-arm, open-label trial randomized 100 coronary artery bypass grafting and/or aortic valve replacement patients to a study group (SG; n = 50) or a control group (CG; n = 50). In the SG, hemodynamic therapy was guided by stroke volume variation, optimized global end-diastolic volume index, mean arterial pressure, and cardiac index. Optimized global end-diastolic volume index was defined before and after weaning from cardiopulmonary bypass and at intensive care unit (ICU) admission. Mean arterial pressure and central venous pressure served as hemodynamic goals in the CG. Therapy was started immediately after induction of anesthesia and continued until ICU discharge criteria, serving as primary outcome parameter, were fulfilled. RESULTS Intraoperative need for norepinephrine was decreased in the SG with a mean (±SD) of 9.0 ± 7.6 versus 14.9 ± 11.1 µg/kg (P = 0.002). Postoperative complications (SG, 40 vs. CG, 63; P = 0.004), time to reach ICU discharge criteria (SG, 15 ± 6 h; CG, 24 ± 29 h; P < 0.001), and length of ICU stay (SG, 42 ± 19 h; CG, 62 ± 58 h; P = 0.018) were reduced in the SG. CONCLUSION Early goal-directed hemodynamic therapy based on cardiac index, stroke volume variation, and optimized global end-diastolic volume index reduces complications and length of ICU stay after cardiac surgery.
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Minimised closed circuit coronary artery bypass grafting in the elderly is associated with lower levels of organ-specific biomarkers. Eur J Anaesthesiol 2013; 30:685-94. [DOI: 10.1097/eja.0b013e328364febf] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wilms H, Mittal A, Haydock MD, van den Heever M, Devaud M, Windsor JA. A systematic review of goal directed fluid therapy: rating of evidence for goals and monitoring methods. J Crit Care 2013; 29:204-9. [PMID: 24360819 DOI: 10.1016/j.jcrc.2013.10.019] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Revised: 10/13/2013] [Accepted: 10/20/2013] [Indexed: 01/23/2023]
Abstract
PURPOSE To review the literature on goal directed fluid therapy and evaluate the quality of evidence for each combination of goal and monitoring method. MATERIALS AND METHODS A search of major digital databases and hand search of references was conducted. All studies assessing the clinical utility of a specific fluid therapy goal or set of goals using any monitoring method were included. Data was extracted using a pre-determined pro forma and papers were evaluated using GRADE principles to assess evidence quality. RESULTS Eighty-one papers met the inclusion criteria, investigating 31 goals and 22 methods for monitoring fluid therapy in 13052 patients. In total there were 118 different goal/method combinations. Goals with high evidence quality were central venous lactate and stroke volume index. Goals with moderate quality evidence were sublingual microcirculation flow, the oxygen extraction ratio, cardiac index, cardiac output, and SVC collapsibility index. CONCLUSIONS This review has highlighted the plethora of goals and methods for monitoring fluid therapy. Strikingly, there is scant high quality evidence, in particular for non-invasive G/M combinations in non-operative and non-intensive care settings. There is an urgent need to address this research gap, which will be helped by methodologies to compare utility of G/M combinations.
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Affiliation(s)
- Heath Wilms
- The University Of Auckland, Auckland, New Zealand
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Boix E, Vicente R, Pérez-Artacho J. [Fluid therapy in cardiac surgery. An update]. ACTA ACUST UNITED AC 2013; 61:21-7. [PMID: 23602462 DOI: 10.1016/j.redar.2013.01.006] [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: 08/07/2012] [Revised: 12/20/2012] [Accepted: 01/14/2013] [Indexed: 10/26/2022]
Abstract
The anesthetist has 2 major tools for optimizing haemodynamics in cardiac surgery: Vasoactive drugs and the intravascular volume. It is necessary to identify which patients would benefit from one or the other therapies for a suitable response to treatment. Hemodynamic monitoring with the different existing parameters (pressure, volumetric static, volumetric functional and echocardiography) allows the management of these patients to be optimized. In this article a review is presented on the most recent and relevant publications, and the different tools available to control the management of the fluid therapy in this context, and to suggest a few guidelines for the haemodynamics monitoring of patients submitted to cardiac surgery. A systematic search has been made in PubMed, limiting the results to the publications over the last five years up to February 2012.
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Affiliation(s)
- E Boix
- Servicio de Anestesiología, Reanimación y Tratamiento del Dolor, Hospital del Vinalopó, Elche, Alicante, España.
| | - R Vicente
- Unidad de Reanimación, Servicio de Anestesiología, Reanimación y Tratamiento del Dolor, Hospital Universitario y Politécnico La Fe, Valencia, España
| | - J Pérez-Artacho
- Servicio de Anestesiología, Reanimación y Tratamiento del Dolor, Hospital del Vinalopó, Elche, Alicante, España
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Goal Directed Fluid Resuscitation: A Review of Hemodynamic, Metabolic, and Monitoring Based Goals. CURRENT ANESTHESIOLOGY REPORTS 2013. [DOI: 10.1007/s40140-013-0011-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Cecconi M, Corredor C, Arulkumaran N, Abuella G, Ball J, Grounds RM, Hamilton M, Rhodes A. Clinical review: Goal-directed therapy-what is the evidence in surgical patients? The effect on different risk groups. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2013; 17:209. [PMID: 23672779 PMCID: PMC3679445 DOI: 10.1186/cc11823] [Citation(s) in RCA: 248] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Patients with limited cardiac reserve are less likely to survive and develop more complications following major surgery. By augmenting oxygen delivery index (DO2I) with a combination of intravenous fluids and inotropes (goal directed therapy (GDT)), postoperative mortality and morbidity of high-risk patients may be reduced. However, although most studies suggest that GDT may improve outcome in high-risk surgical patients, it is still not widely practiced. We set out to test the hypothesis that GDT results in greatest benefit in terms of mortality and morbidity in patients with the highest risk of mortality and have undertaken a systematic review of the current literature to see if this is correct. We performed a systematic search of Medline, Embase and CENTRAL databases for randomized controlled trials (RCTs) and reviews of GDT in surgical patients. To minimize heterogeneity we excluded studies involving cardiac, trauma, and paediatric surgery. Extremely high risk, high risk and intermediate risks of mortality were defined as >20%, 5 to 20% and <5% mortality rates in the control arms of the trials, respectively. Meta analyses were performed and Forest plots drawn using RevMan software. Data are presented as odd ratios (OR; 95% confidence intervals (CI), and P-values). A total of 32 RCTs including 2,808 patients were reviewed. All studies reported mortality. Five studies (including 300 patients) were excluded from assessment of complication rates as the number of patients with complications was not reported. The mortality benefit of GDT was confined to the extremely high-risk group (OR = 0.20, 95% CI 0.09 to 0.41; P < 0.0001). Complication rates were reduced in all subgroups (OR = 0.45, 95% CI 0.34 to 0.60; P < 0.00001). The morbidity benefit was greatest amongst patients in the extremely high-risk subgroup (OR = 0.27, 95% CI 0.15 to 0.51; P < 0.0001), followed by the intermediate risk subgroup (OR = 0.43, 95% CI 0.27 to 0.67; P = 0.0002), and the high-risk subgroup (OR 0.56, 95% CI 0.36 to 0.89; P = 0.01). Despite heterogeneity in trial quality and design, we found GDT to be beneficial in all high-risk patients undergoing major surgery. The mortality benefit of GDT was confined to the subgroup of patients at extremely high risk of death. The reduction of complication rates was seen across all subgroups of GDT patients.
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Aya HD, Cecconi M, Hamilton M, Rhodes A. Goal-directed therapy in cardiac surgery: a systematic review and meta-analysis. Br J Anaesth 2013; 110:510-7. [PMID: 23447502 DOI: 10.1093/bja/aet020] [Citation(s) in RCA: 164] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Perioperative mortality after cardiac surgery has decreased in recent years although postoperative morbidity is still significant. Although there is evidence that perioperative goal-directed haemodynamic therapy (GDT) may reduce surgical mortality and morbidity in non-cardiac surgical patients, the data are less clear after cardiac surgery. The objective of this review is to perform a meta-analysis on the effects of perioperative GDT on mortality, morbidity, and length of hospital stay in cardiac surgical patients. METHODS We conducted a systematic review using Medline, EMBASE, and the Cochrane Controlled Clinical Trials Register. Additional sources were sought from experts. The inclusion criteria were randomized controlled trials, mortality reported as an outcome, pre-emptive haemodynamic intervention, and cardiac surgical population. Included studies were examined in full and subjected to quantifiable analysis, subgroup analysis, and sensitivity analysis where possible. Data synthesis was obtained by using odds ratio (OR) and mean difference (MD) for continuous data with 95% confidence interval (CI) utilizing a random-effects model. RESULTS From 4986 potential studies, 5 met all the inclusion criteria (699 patients). The quantitative analysis showed that the use of GDT reduced the postoperative complication rate (OR 0.33, 95% CI 0.15-0.73; P=0,006) and hospital length of stay (MD -2.44, 95% CI -4.03 to -0.84; P=0,003). There was no significant reduction in mortality. CONCLUSION The use of pre-emptive GDT in cardiac surgery reduces morbidity and hospital length of stay.
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Affiliation(s)
- H D Aya
- St George's Hospital NHS Trust and St George's University of London, London SW170QT, UK
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Abstract
The crystalloid-colloid debate has raged for decades, with the publication of many meta-analyses, yet no consensus. There are important differences between colloids and crystalloids, and these differences have direct relevance for cardiac surgical patients. Rather than asking crystalloid or colloid, we believe better questions to ask are (1) High or low chloride content? and (2) Synthetic or natural colloid? In this paper we review the published literature regarding fluid therapy in cardiac surgery and explain the background to these two important and unanswered questions.
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Abstract
PURPOSE OF REVIEW This review discusses the importance of intravenous fluid dose and composition in surgical ICU patients. On the basis of updated physiologic postulates, we suggest guidelines for the use of crystalloids and colloids. Goal-directed fluid therapy is advocated as a means for avoiding both hypovolemia and hypervolemia. RECENT FINDINGS Integrity of the endothelial surface layer (ESL) and 'volume context' are key determinants of fluid disposition. During critical illness the ESL is compromised. Optimal resuscitation may be guided by functional measures of fluid responsiveness with some caveats. The best approach may be to use physiologically balanced crystalloids for hypovolemic resuscitation and colloids for euvolemic hemodynamic augmentation. SUMMARY The routine replacement of unmeasured presumed fluid deficits is not appropriate. In critically ill patients, resuscitation with intravenous fluids should produce a demonstrable enhancement of perfusion. Individualized goal-directed therapy using functional hemodynamic parameters can optimize resuscitation and 'deresuscitation'.
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Hajj-Chahine J. eComment. Haemodynamic goal-directed therapy in cardiac surgery. Interact Cardiovasc Thorac Surg 2012; 15:887. [PMID: 23100554 DOI: 10.1093/icvts/ivs378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Jamil Hajj-Chahine
- Department of Cardio-Thoracic Surgery, University Hospital of Poitiers, Poitiers, France
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Giglio M, Dalfino L, Puntillo F, Rubino G, Marucci M, Brienza N. Haemodynamic goal-directed therapy in cardiac and vascular surgery. A systematic review and meta-analysis. Interact Cardiovasc Thorac Surg 2012; 15:878-87. [PMID: 22833509 DOI: 10.1093/icvts/ivs323] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
In cardiovascular surgery, reduced organ perfusion and oxygen delivery contribute to increased postoperative morbidity and prolonged intensive care unit stay. Goal-directed therapy (GDT), a perioperative haemodynamic strategy aiming to increase cardiac output, is helpful in preventing postoperative complications, but studies in the context of cardiovascular surgery have produced conflicting results. The purpose of the present meta-analysis is to determine the effects of perioperative haemodynamic goal-directed therapy on mortality and morbidity in cardiac and vascular surgery. MEDLINE, EMBASE, The Cochrane Library and the DARE databases were searched until July 2011. Randomized controlled trials reporting on adult cardiac or vascular surgical patients managed with perioperative GDT or according to routine haemodynamic practice were included. Primary outcome measures were mortality and morbidity. Data synthesis was obtained by using odds ratio (OR) with 95% confidence interval (CI) by a random effects model. An OR <1 favoured GDT. Statistical heterogeneity was assessed by Q and I(2) statistics. Eleven articles (five cardiac surgery and six vascular procedures), enrolling a total sample of 1179 patients, were included in the analysis. As compared with routine haemodynamic practice, perioperative GDT did not reduce mortality in either cardiac or vascular surgery (pooled OR 0.87; 95% CI 0.37-2.02; statistical power 64%). GDT significantly reduced the number of cardiac patients with complications (OR 0.34; 95% CI 0.18-0.63; P = 0.0006), but no effect was observed in vascular patients (OR, 0.84; 95% CI 0.45-1.56; P = 0.58). Perioperative GDT prevents postoperative complications in cardiac surgery patients, while it has no effect in vascular surgery. The different characteristics and comorbidities of the population enrolled could explain these conflicting results. More trials conforming to the characteristics of low-risk-of-bias studies and enrolling a larger and well-defined population of patients are needed to better clarify the effect of GDT in the specific setting of cardiovascular surgery.
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Affiliation(s)
- Mariateresa Giglio
- Anesthesia and Intensive Care Unit, Department of Emergency and Organ Transplantation, University of Bari, Bari, Italy
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Sakka SG, Reuter DA, Perel A. The transpulmonary thermodilution technique. J Clin Monit Comput 2012; 26:347-53. [DOI: 10.1007/s10877-012-9378-5] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Accepted: 06/21/2012] [Indexed: 12/12/2022]
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Pérez Vela J, Martín Benítez J, Carrasco González M, De la Cal López M, Hinojosa Pérez R, Sagredo Meneses V, del Nogal Saez F. Guías de práctica clínica para el manejo del síndrome de bajo gasto cardíaco en el postoperatorio de cirugía cardíaca. Med Intensiva 2012; 36:e1-44. [DOI: 10.1016/j.medin.2012.02.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Accepted: 01/07/2012] [Indexed: 01/04/2023]
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Comparison of goal-directed hemodynamic optimization using pulmonary artery catheter and transpulmonary thermodilution in combined valve repair: a randomized clinical trial. Crit Care Res Pract 2012; 2012:821218. [PMID: 22611489 PMCID: PMC3350845 DOI: 10.1155/2012/821218] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Accepted: 02/14/2012] [Indexed: 01/20/2023] Open
Abstract
Our aim was to compare the effects of goal-directed therapy guided either by pulmonary artery catheter (PAC) or by transpulmonary thermodilution (TTD) combined with monitoring of oxygen transport on perioperative hemodynamics and outcome after complex elective valve surgery.
Measurements and Main Results. Forty patients were randomized into two equal groups: a PAC group and a TTD group. In the PAC group, therapy was guided by mean arterial pressure (MAP), cardiac index (CI) and pulmonary artery occlusion pressure (PAOP), whereas in the TTD group we additionally used global end-diastolic volume index (GEDVI), extravascular lung water index (EVLWI), and oxygen delivery index (DO2I). We observed a gradual increase in GEDVI, whereas EVLWI and PAOP decreased by 20–30% postoperatively (P < 0.05). The TTD group received 20% more fluid accompanied by increased stroke volume index and DO2I by 15–20% compared to the PAC group (P < 0.05). Duration of mechanical ventilation was increased by 5.2 hrs in the PAC group (P = 0.04).
Conclusions. As compared to the PAC-guided algorithm, goal-directed therapy based on transpulmonary thermodilution and oxygen transport increases the volume of fluid therapy, improves hemodynamics and DO2I, and reduces the duration of respiratory support after complex valve surgery.
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Soussi MS, Jebali MA, Le Manach Y, Nasri M, Zouari B, Chenik S, Ferjani M. Central venous saturation is not an alternative to mixed venous saturation during cardiopulmonary bypass in coronary artery surgery patients. Perfusion 2012; 27:300-6. [PMID: 22499058 DOI: 10.1177/0267659112442902] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND To evaluate the correlation and agreement between central venous saturation (ScvO(2)) and mixed venous saturation (SvO(2)) during cardiopulmonary bypass. METHODS Twenty-two consecutive patients scheduled for coronary artery surgery were prospectively included. Paired measurements of ScvO(2) and SvO(2) were performed 5 minutes after aortic cross-clamping, after each cardioplegia dose and after de-clamping of the aortic cross-clamp. ScvO(2) and SvO(2) were measured, respectively, by a fibreoptic catheter in the superior vena cava and on blood samples from the venous return line of the extracorporeal circuit, using a blood gas analyser RESULTS Ninety-five paired measurements of venous saturation were obtained. Correlation between the measurements was associated with an r = 0.55. The mean bias was 2.2 [Limits of agreement: -13.6%, +18%]. Changes in oxygen saturation over time showed an r = 0.4 and a mean bias of 0.2 [Limits of agreement: -17.9%, +18.3%]. Multivariate analysis identified the oxygen consumption index as the only factor explaining this variability. CONCLUSIONS Although mean biases between the measurements were low, limits of agreement were too large to provide a clinically acceptable estimation of SvO(2) by ScvO(2) in these conditions. Variations in regional oxygen consumption seem to be the main factor worsening the relationship.
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Affiliation(s)
- M S Soussi
- Department of Anaesthesiology and Critical Care, Military Hospital, Tunis University, Tunis, Tunisia
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