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Djukanovic M, Skrobic O, Stojakov D, Knezevic NN, Milicic B, Sabljak P, Simic A, Milenkovic M, Sreckovic S, Markovic D, Palibrk I. Impact of fluid balance and opioid-sparing anesthesia within enchanced recovery pathway on postoperative morbidity after transthoracic esophagectomy for cancer. Front Med (Lausanne) 2024; 11:1366438. [PMID: 38770049 PMCID: PMC11102964 DOI: 10.3389/fmed.2024.1366438] [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: 01/06/2024] [Accepted: 04/15/2024] [Indexed: 05/22/2024] Open
Abstract
BackgroundEnhanced Recovery After Surgery (ERAS) protocol for esophagectomy may reduce the high incidence of postoperative morbidity and mortality. The aim of this study was to assess the impact of properly conducted ERAS protocol with specific emphasis on fluid balance and opioid-sparing anesthesia (OSA) on postoperative major morbidity and mortality after esophagectomy.MethodsPatients undergoing elective esophagectomy for esophageal cancer at the Hospital for Digestive Surgery, University Clinical Center of Serbia, from December 2017 to March 2021, were included in this retrospective observational study. Patients were divided into two groups: the ERAS group (OSA, intraoperative goal-directed therapy, and postoperative “near-zero” fluid balance) and the control group (opioid-based anesthesia, maintenance mean blood pressure ≥ 65 mmHg, and liberal postoperative fluid management). The primary outcome was major morbidity within 30 days from surgery and 30-day and 90-day mortality. Multivariable analysis was used to examine the effect of the ERAS protocol.ResultsA total of 121 patients were divided into the ERAS group (69 patients) and the control group (52 patients). Patients in the ERAS group was received less fentanyl, median 300 (interquartile range (IQR), 200–1,550) mcg than in control group, median 1,100 (IQR, 650–1750) mcg, p < 0.001. Median intraoperative total infusion was lower in the ERAS group, 2000 (IQR, 1000–3,750) mL compared to control group, 3,500 (IQR, 2000–5,500) mL, p < 0.001. However, intraoperative norepinephrine infusion was more administered in the ERAS group (52.2% vs. 7.7%, p < 0.001). On postoperative day 1, median cumulative fluid balance was 2,215 (IQR, −150-5880) mL in the ERAS group vs. 4692.5 (IQR, 1770–10,060) mL in the control group, p = 0.002. After the implementation of the ERAS protocol, major morbidity was less frequent in the ERAS group than in the control group (18.8% vs. 75%, p < 0.001). There was no statistical significant difference in 30-day and 90-day mortality (p = 0.07 and p = 0.119, respectively). The probability of postoperative major morbidity and interstitial pulmonary edema were higher in control group (OR 5.637; CI95%:1.178–10.98; p = 0.030 and OR 5.955; CI95% 1.702–9.084; p < 0.001, respectively).ConclusionA major morbidity and interstitial pulmonary edema after esophagectomy were decreased after the implementation of the ERAS protocol, without impact on overall mortality.
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Affiliation(s)
- Marija Djukanovic
- School of Medicine, University of Belgrade, Belgrade, Serbia
- Department of Anaesthesiology and Intensive Care, Hospital for Digestive Surgery, University Clinical Center of Serbia, Belgrade, Serbia
| | - Ognjan Skrobic
- School of Medicine, University of Belgrade, Belgrade, Serbia
- Department of Esophagogastric Surgery, Hospital for Digestive Surgery, University Clinical Center of Serbia, Belgrade, Serbia
| | - Dejan Stojakov
- School of Medicine, University of Belgrade, Belgrade, Serbia
- Surgery Clinic, Clinical Centre “Dr. Dragisa Misovic – Dedinje”, Belgrade, Serbia
| | - Nebojsa Nick Knezevic
- Department of Anaesthesiology, Advocate Illinois Masonic Medical Center, Chicago, IL, United States
- Department of Anaesthesiology, College of Medicine, University of Illinois, Chicago, IL, United States
- Department of Surgery, College of Medicine, University of Illinois, Chicago, IL, United States
| | - Biljana Milicic
- Department of Medical Statistics and Informatics, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Predrag Sabljak
- School of Medicine, University of Belgrade, Belgrade, Serbia
- Department of Esophagogastric Surgery, Hospital for Digestive Surgery, University Clinical Center of Serbia, Belgrade, Serbia
| | - Aleksandar Simic
- School of Medicine, University of Belgrade, Belgrade, Serbia
- Department of Esophagogastric Surgery, Hospital for Digestive Surgery, University Clinical Center of Serbia, Belgrade, Serbia
| | - Marija Milenkovic
- School of Medicine, University of Belgrade, Belgrade, Serbia
- Department of Anaesthesiology, Emergency Center, University Clinical Center of Serbia, Belgrade, Serbia
| | - Svetlana Sreckovic
- School of Medicine, University of Belgrade, Belgrade, Serbia
- Department of Anesthesiology, Clinic for Orthopedics Surgery and Traumatology, University Clinical Center of Serbia, Belgrade, Serbia
| | - Dejan Markovic
- School of Medicine, University of Belgrade, Belgrade, Serbia
- Department of Cardiac Anesthesiology, Hospital of Cardiovascular Surgery, University Clinical Center of Serbia, Belgrade, Serbia
| | - Ivan Palibrk
- School of Medicine, University of Belgrade, Belgrade, Serbia
- Department of Anaesthesiology and Intensive Care, Hospital for Digestive Surgery, University Clinical Center of Serbia, Belgrade, Serbia
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Han S, Wu X, Li P, He K, Li J. The impact of goal-directed fluid therapy on postoperative pulmonary complications in patients undergoing thoracic surgery: a systematic review and meta-analysis. J Cardiothorac Surg 2024; 19:60. [PMID: 38317166 PMCID: PMC10840200 DOI: 10.1186/s13019-024-02519-y] [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: 12/28/2022] [Accepted: 01/28/2024] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND Pulmonary complications after thoracic surgery are common and associated with significant morbidity and high cost of care. Goal-directed fluid therapy (GDFT) could reduce the incidence of postoperative pulmonary complications (PPCs) and facilitate recovery in patients undergoing major abdominal surgery. However, whether GDFT could reduce the incidence of PPCs in patients undergoing thoracic surgery was unclear. The present meta-analysis was designed to assess the impact of Goal-directed Fluid Therapy on PPCs in patients undergoing thoracic surgery. METHODS Randomized controlled trials (RCTs) comparing GDFT with other conventional fluid management strategies in adult patients undergoing thoracic surgery were identified. Databases searched included PubMed, Web of Science, Embase, and Cochrane Library databases. Review Manager 5.4 (The Cochrane Collaboration, Oxford, UK) software was used for statistical analysis. Heterogeneity was analyzed using I2 statistics, and a standardized mean difference with 95% CI and P value was used to calculate the treatment effect for outcome variables. The primary study outcomes were the incidence of PPCs. Secondary outcomes were the total volume infused, the length of hospitalization, the incidence of cardiac complications, and the incidence of renal dysfunction. Subgroup analysis was planned to verify the definite role of GDFT. RESULTS A total of 6 RCTs consisting of 680 patients were included in this meta-analysis, which revealed that GDFT did not reduce the incidence of PPCs in patients undergoing thoracic surgery (RR, 0.57; 95% CI 0.29-1.14). However, GDFT decreased the total intra-operative fluid input (MD, - 244.40 ml; 95% CI - 397.06 to - 91.74). There was no statistical difference in the duration of hospitalization (MD; - 1.31, 95% CI - 3.00 to 0.38), incidence of renal dysfunction (RR, 0.62; 95% CI 0.29-1.35), and incidence of cardiac complications (RR, 0.62; 95% CI 0.27-1.40). CONCLUSIONS The results of this meta-analysis indicate that GDFT did not reduce the postoperative incidence of pulmonary complications in individuals undergoing thoracic surgery. However, considering the small number of contributing studies, these results should be interpreted with caution.
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Affiliation(s)
- Shuang Han
- Department of Anesthesiology, Hebei General Hospital, No.348, Heping West Road, Shijiazhuang, 050051, China
| | - Xiaoqian Wu
- Department of Anesthesiology, Hebei General Hospital, No.348, Heping West Road, Shijiazhuang, 050051, China
| | - Pan Li
- Department of Anesthesiology, Hebei General Hospital, No.348, Heping West Road, Shijiazhuang, 050051, China
| | - Kun He
- Department of Anesthesiology, The Fourth Hospital of Shijiazhuang, No.16, Tangu North Street, Shijiazhuang, 050051, China
| | - Jianli Li
- Department of Anesthesiology, Hebei General Hospital, No.348, Heping West Road, Shijiazhuang, 050051, China.
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Li X, Zhang Q, Zhu Y, Yang Y, Xu W, Zhao Y, Liu Y, Xue W, Fang Y, Huang J. Effect of perioperative goal-directed fluid therapy on postoperative complications after thoracic surgery with one-lung ventilation: a systematic review and meta-analysis. World J Surg Oncol 2023; 21:297. [PMID: 37723513 PMCID: PMC10506328 DOI: 10.1186/s12957-023-03169-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 09/02/2023] [Indexed: 09/20/2023] Open
Abstract
BACKGROUND An understanding of the impact of goal-directed fluid therapy (GDFT) on the outcomes of patients undergoing one-lung ventilation (OLV) for thoracic surgery remains incomplete and controversial. This meta-analysis aimed to assess the effect of GDFT compared to other fluid therapy strategies on the incidence of postoperative complications in patients with OLV. METHODS The Embase, Cochrane Library, Web of Science, and MEDLINE via PubMed databases were searched from their inception to November 30, 2022. Forest plots were constructed to present the results of the meta-analysis. The quality of the included studies was evaluated using the Cochrane Collaboration tool and Risk Of Bias In Non-Randomized Study of Interventions (ROBINS-I). The primary outcome was the incidence of postoperative complications. Secondary outcomes were the length of hospital stay, PaO2/FiO2 ratio, total fluid infusion, inflammatory factors (TNF-α, IL-6), and postoperative bowel function recovery time. RESULTS A total of 1318 patients from 11 studies were included in this review. The GDFT group had a lower incidence of postoperative complications [odds ratio (OR), 0.47; 95% confidence interval (95% CI), 0.29-0.75; P = 0.002; I 2, 67%], postoperative pulmonary complications (OR 0.48, 95% CI 0.27-0.83; P = 0.009), and postoperative anastomotic leakage (OR 0.51, 95% CI 0.27-0.97; P = 0.04). The GDFT strategy reduces total fluid infusion. CONCLUSIONS GDFT is associated with lower postoperative complications and better survival outcomes after thoracic surgery for OLV.
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Affiliation(s)
- Xuan Li
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, KunMing, China
| | - Qinyu Zhang
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, KunMing, China
| | - Yuyang Zhu
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, KunMing, China
| | - Yihan Yang
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, KunMing, China
| | - Wenxia Xu
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, KunMing, China
| | - Yufei Zhao
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, KunMing, China
| | - Yuan Liu
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, KunMing, China
| | - Wenqiang Xue
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, KunMing, China
| | - Yu Fang
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, KunMing, China.
| | - Jie Huang
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, KunMing, China.
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Muir D, Antonowicz S, Whiting J, Low D, Maynard N. Implementation of the Esophagectomy Complication Consensus Group definitions: the benefits of speaking the same language. Dis Esophagus 2022; 35:6603615. [PMID: 35673848 DOI: 10.1093/dote/doac022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 03/17/2022] [Indexed: 12/24/2022]
Abstract
In 2015 the Esophagectomy Complication Consensus Group (ECCG) reported consensus definitions for complications after esophagectomy. This aimed to reduce variation in complication reporting, attributed to heterogeneous definitions. This systematic review aimed to describe the implementation of this definition set, including the effect on complication frequency and variation. A systematic literature review was performed, identifying all observational and randomized studies reporting complication frequencies after esophagectomy since the ECCG publication. Recruitment periods before and subsequent to the index ECCG publication date were included. Coefficients of variance were calculated to assess outcome heterogeneity. Of 144 studies which met inclusion criteria, 70 (48.6%) used ECCG definitions. The median number of separately reported complication types was five per study; only one study reported all ECCG complications. The coefficients of variance of the reported frequencies of eight of the 10 most common complications were reduced in studies which used the ECCG definitions compared with those that did not (P = 0.036). Among ECCG studies, the frequencies of postoperative pneumothorax, reintubation, and pulmonary emboli were significantly reduced in 2020-2021, compared with 2015-2019 (P = 0.006, 0.034, and 0.037 respectively). The ECCG definition set has reduced variation in esophagectomy morbidity reporting. This adds greater confidence to the observed gradual improvement in outcomes with time, and its ongoing use and wider dissemination should be encouraged. However, only a handful of outcomes are widely reported, and only rarely is it used in its entirety.
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Affiliation(s)
- Duncan Muir
- Department of Upper GI Surgery, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Stefan Antonowicz
- Department of Upper GI Surgery, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Jack Whiting
- Department of Upper GI Surgery, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Donald Low
- Department of Thoracic Surgery and Thoracic Oncology, Virginia Mason Medical Center, Seattle, WA, USA
| | - Nick Maynard
- Department of Upper GI Surgery, Oxford University Hospitals NHS Trust, Oxford, UK
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Comparison of Goal-Directed Fluid Therapy using LiDCOrapid System with Regular Fluid Therapy in Patients Undergoing Spine Surgery as a Randomised Clinical Trial. Rom J Anaesth Intensive Care 2022; 28:1-9. [PMID: 36846537 PMCID: PMC9949010 DOI: 10.2478/rjaic-2021-0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023] Open
Abstract
Background Goal-directed fluid therapy (GDFT) is a new concept to describe the cardiac output (CO) and stroke volume variation to guide intravenous fluid administration during surgery. LiDCOrapid (LiDCO, Cardiac Sensor System, UK Company Regd 2736561, VAT Regd 672475708) is a minimally invasive monitor that estimates the responsiveness of CO versus fluid infusion. We intend to find whether GDFT using the LiDCOrapid system can decrease the volume of intraoperative fluid therapy and facilitate recovery in patients undergoing posterior fusion spine surgeries in comparison to regular fluid therapy. Methods This study is a randomised clinical trial, and the design was parallel. Inclusion criteria for participants in this study were patients with comorbidities such as diabetes mellitus, hypertension, and ischemic heart disease undergoing spine surgery; exclusion criteria were patients with irregular heart rhythm or severe valvular heart disease. Forty patients with a previous history of medical comorbidities undergoing spine surgery were randomly and evenly assigned to receive either LiDCOrapid guided fluid therapy or regular fluid therapy. The volume of infused fluid was the primary outcome. The amount of bleeding, number of patients who needed packed red blood cell transfusion, base deficit, urine output, days of hospital length of stay and intensive care unit (ICU) admission, and time needed to start eating solids were monitored as secondary outcomes. Results The volume of infused crystalloid and urinary output in the LiDCO group was significantly lower than that of the control group (p = .001). Base deficit at the end of surgery was significantly better in the LiDCO group (p < .001). The duration of hospital length of stay in the LiDCO group was significantly shorter (p = .027), but the duration of ICU admission was not significantly different between the two groups. Conclusion Goal-directed fluid therapy using the LiDCOrapid system reduced the volume of intraoperative fluid therapy.
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Tang W, Qiu Y, Lu H, Xu M, Wu J. Stroke Volume Variation-Guided Goal-Directed Fluid Therapy Did Not Significantly Reduce the Incidence of Early Postoperative Complications in Elderly Patients Undergoing Minimally Invasive Esophagectomy: A Randomized Controlled Trial. Front Surg 2021; 8:794272. [PMID: 34938769 PMCID: PMC8685214 DOI: 10.3389/fsurg.2021.794272] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/12/2021] [Indexed: 01/29/2023] Open
Abstract
Study Objective: This study aimed to investigate whether stroke volume variation (SVV)-guided goal-directed therapy (GDT) can improve postoperative outcomes in elderly patients undergoing minimally invasive esophagectomy (MIE) compared with conventional care. Design: A prospective, randomized, controlled study. Setting: A single tertiary care center with a study period from November 2017 to December 2018. Patients: Patients over 65 years old who were scheduled for elective MIE. Interventions: The GDT protocol included a baseline fluid supplement of 7 ml/kg/h Ringer's lactate solution and SVV optimization using colloid boluses assessed by pulse-contour analysis (PiCCO™). When SVV exceeded 11%, colloid was infused at a rate of 50 ml per minute; if SVV returned below 9% for at least 2 minutes, then colloid was stopped. Measurements: The primary outcome was the incidence of postoperative complications before discharge, as assessed using a predefined list, including postoperative anastomotic leakage, postoperative hoarseness, postoperative pulmonary complications, chylothorax, myocardial injury, and all-cause mortality. Main Results: Sixty-five patients were included in the analysis. The incidence of postoperative complications between groups was similar (GDT 36.4% vs. control 37.5%, P = 0.92). The total fluid volume was not significantly different between the two groups (2,192 ± 469 vs. 2,201 ± 337 ml, P = 0.92). Compared with those in the control group (n = 32), patients in the GDT group (n = 33) received more colloids intraoperatively (874 ± 369 vs. 270 ± 67 ml, P <0.05) and less crystalloid fluid (1,318 ± 386 vs. 1,937 ± 334 ml, P <0.05). Conclusion: The colloid-based SVV optimization during GDT did not significantly reduce the incidence of early postoperative complications after minimally invasive esophagectomy in elderly patients. Clinical Trial Number and Registry URL: ChiCTR-INR-17013352; http://www.chictr.org.cn/showproj.aspx?proj=22883
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Affiliation(s)
- Wei Tang
- Department of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yuwei Qiu
- Department of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China.,Outcomes Research Consortium, Cleveland, OH, United States
| | - Huijie Lu
- Department of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Meiying Xu
- Department of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jingxiang Wu
- Department of Anesthesiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China.,Outcomes Research Consortium, Cleveland, OH, United States
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Zidan MMOM, Osman HA, Gafour SE, El Tahan DA. Goal-directed fluid therapy versus restrictive fluid therapy: A cardiomerty study during one-lung ventilation in patients undergoing thoracic surgery. EGYPTIAN JOURNAL OF ANAESTHESIA 2021. [DOI: 10.1080/11101849.2021.2013654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
| | - Hassan Aly Osman
- Anaesthesia and Surgical Intensive Care, Alexandria Faculty of Medicine, Alexandria, Egypt
| | - Sania Elsayed Gafour
- Anaesthesia and Surgical Intensive Care, Alexandria Faculty of Medicine, Alexandria, Egypt
| | - Dina Abbas El Tahan
- Anaesthesia and Surgical Intensive Care, Alexandria Faculty of Medicine, Alexandria, Egypt
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Deana C, Vetrugno L, Bignami E, Bassi F. Peri-operative approach to esophagectomy: a narrative review from the anesthesiological standpoint. J Thorac Dis 2021; 13:6037-6051. [PMID: 34795950 PMCID: PMC8575828 DOI: 10.21037/jtd-21-940] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 08/19/2021] [Indexed: 12/16/2022]
Abstract
Objective This review summarizes the peri-operative anesthesiological approaches to esophagectomy considering the best up-to-date, evidence-based medicine, discussed from the anesthesiologist’s standpoint. Background Esophagectomy is the only curative therapy for esophageal cancer. Despite the many advancements made in the surgical treatment of this tumour, esophagectomy still carries a morbidity rate reaching 60%. Patients undergoing esophagectomy should be referred to high volume centres where they can receive a multidisciplinary approach to treatment, associated with better outcomes. The anesthesiologist is the key figure who should guide the peri-operative phase, from diagnosis through to post-surgery rehabilitation. We performed an updated narrative review devoted to the study of anesthesia management for esophagectomy in cancer patients. Methods We searched MEDLINE, Scopus and Google Scholar databases from inception to May 2021. We used the following terms: “esophagectomy”, “esophagectomy AND pre-operative evaluation”, “esophagectomy AND protective lung ventilation”, “esophagectomy AND hemodynamic monitoring” and “esophagectomy AND analgesia”. We considered only articles with abstract written in English and available to the reader. We excluded single case-reports. Conclusions Pre-operative anesthesiological evaluation is mandatory in order to stratify and optimize any medical condition. During surgery, protective ventilation and judicious fluid management are the cornerstones of intraoperative “protective anesthesia”. Post-operative care should be provided by an intensive care unit or high-dependency unit depending on the patient’s condition, the type of surgery endured and the availability of local resources. The provision of adequate post-operative analgesia favours early mobilization and rapid recovery. Anesthesiologist has an important role during the peri-operative care for esophagectomy. However, there are still some topics that need to be further studied to improve the outcome of these patients.
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Affiliation(s)
- Cristian Deana
- Department of Anesthesia and Intensive Care, ASUFC-Academic Hospital of Udine, Udine, Italy
| | - Luigi Vetrugno
- Department of Anesthesia and Intensive Care, ASUFC-Academic Hospital of Udine, Udine, Italy.,Department of Medical Area, University of Udine, Udine, Italy
| | - Elena Bignami
- Anesthesiology, Critical Care and Pain Medicine Division, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | - Flavio Bassi
- Department of Anesthesia and Intensive Care, ASUFC-Academic Hospital of Udine, Udine, Italy
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Hagens ERC, Reijntjes MA, Anderegg MCJ, Eshuis WJ, van Berge Henegouwen MI, Gisbertz SS. Risk Factors and Consequences of Anastomotic Leakage After Esophagectomy for Cancer. Ann Thorac Surg 2021; 112:255-263. [PMID: 33075324 DOI: 10.1016/j.athoracsur.2020.08.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 07/05/2020] [Accepted: 08/10/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Identifying predictors of anastomotic leakage can contribute to prevention of this common complication after esophagectomy. This study identified predictors for anastomotic leakage and assessed the influence of anastomotic leakage on short-term outcomes and long-term survival. METHODS A retrospective cohort study was conducted of consecutive patients who underwent esophagectomy in the Amsterdam University Medical Centers, location Amsterdam Medical Center, between 1993 and 2019. Multilevel logistic and Cox regression models were used to assess predictors for anastomotic leakage and survival, and an operation year-level random effects was considered for the unmeasured characteristics at year of operation. RESULTS Included were 1539 patients, and anastomotic leakage developed in 288 (19%). Predictors for developing anastomotic leakage after a transthoracic esophagectomy were a higher body mass index and a cervical anastomosis. Diabetes mellitus type 2 and chronic obstructive pulmonary disease were predictors for anastomotic leakage after a transhiatal esophagectomy. Median intensive care unit and hospital stay was longer for patients with anastomotic leakage than for patients without anastomotic leakage (both P < .001 for transthoracic esophagectomy, P = .010 and P < .001, respectively, for transhiatal esophagectomy). A higher percentage of patients with anastomotic leakage died within 30 days (3.8% vs 1.9%, P = .050). However, anastomotic leakage did not significantly influence long-term survival (hazard ratio, 0.994; 95% CI, 0.849-1.176; P = .994). CONCLUSIONS Higher body mass index, cervical anastomosis, diabetes mellitus, and chronic obstructive pulmonary disease are predictors for anastomotic leakage after esophagectomy. Anastomotic leakage is associated with worse short-term outcomes, but long-term survival was not influenced. Future studies should focus on patient optimization, accurate patient selection, and development of tools in risk assessment.
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Affiliation(s)
- Eliza R C Hagens
- Department of Surgery, Amsterdam University Medical Centers, location Amsterdam Medical Center, University of Amsterdam Cancer Center, Amsterdam, the Netherlands
| | - Maud A Reijntjes
- Department of Surgery, Amsterdam University Medical Centers, location Amsterdam Medical Center, University of Amsterdam Cancer Center, Amsterdam, the Netherlands
| | - Martinus C J Anderegg
- Department of Surgery, Amsterdam University Medical Centers, location Amsterdam Medical Center, University of Amsterdam Cancer Center, Amsterdam, the Netherlands
| | - Wietse J Eshuis
- Department of Surgery, Amsterdam University Medical Centers, location Amsterdam Medical Center, University of Amsterdam Cancer Center, Amsterdam, the Netherlands
| | - Mark I van Berge Henegouwen
- Department of Surgery, Amsterdam University Medical Centers, location Amsterdam Medical Center, University of Amsterdam Cancer Center, Amsterdam, the Netherlands
| | - Suzanne S Gisbertz
- Department of Surgery, Amsterdam University Medical Centers, location Amsterdam Medical Center, University of Amsterdam Cancer Center, Amsterdam, the Netherlands.
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Pulmonary levels of biomarkers for inflammation and lung injury in protective versus conventional one-lung ventilation for oesophagectomy: A randomised clinical trial. Eur J Anaesthesiol 2021; 37:1040-1049. [PMID: 31789965 DOI: 10.1097/eja.0000000000001126] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND It is uncertain whether protective ventilation reduces ventilation-induced pulmonary inflammation and injury during one-lung ventilation. OBJECTIVE To compare intra-operative protective ventilation with conventional during oesophagectomy with respect to pulmonary levels of biomarkers for inflammation and lung injury. DESIGN Randomised clinical trial. SETTING Tertiary centre for oesophageal diseases. PATIENTS Twenty-nine patients scheduled for one-lung ventilation during oesophagectomy. INTERVENTIONS Low tidal volume (VT) of 6 ml kg predicted body weight (pbw) during two-lung ventilation and 3 ml kgpbw during one-lung ventilation with 5 cmH2O positive end expired pressure versus intermediate VT of 10 ml kgpbw during two-lung ventilation and 5 ml kgpbw body weight during one-lung ventilation with no positive end-expiratory pressure. OUTCOME MEASURES The primary outcome was the change in bronchoalveolar lavage (BAL) levels of preselected biomarkers for inflammation (TNF-α, IL-6 and IL-8) and lung injury (soluble Receptor for Advanced Glycation End-products, surfactant protein-D, Clara Cell protein 16 and Krebs von den Lungen 6), from start to end of ventilation. RESULTS Median [IQR] VT in the protective ventilation group (n = 13) was 6.0 [5.7 to 7.8] and 3.1 [3.0 to 3.6] ml kgpbw during two and one-lung ventilation; VT in the conventional ventilation group (n = 16) was 9.8 [7.0 to 10.1] and 5.2 [5.0 to 5.5] ml kgpbw during two and one-lung ventilation. BAL levels of biomarkers for inflammation increased from start to end of ventilation in both groups; levels of soluble Receptor for Advanced Glycation End-products, Clara Cell protein 16 and Krebs von den Lungen 6 did not change, while levels of surfactant protein-D decreased. Changes in BAL biomarkers levels were not significantly different between the two ventilation strategies. CONCLUSION Intra-operative protective ventilation compared with conventional ventilation does not affect changes in pulmonary levels of biomarkers for inflammation and lung injury in patients undergoing one-lung ventilation for oesophagectomy. TRIAL REGISTRATION The 'Low versus Conventional tidal volumes during one-lung ventilation for minimally invasive oesophagectomy trial' (LoCo) was registered at the Netherlands Trial Register (study identifier NTR 4391).
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Fabbi M, Hagens ERC, van Berge Henegouwen MI, Gisbertz SS. Anastomotic leakage after esophagectomy for esophageal cancer: definitions, diagnostics, and treatment. Dis Esophagus 2021; 34:doaa039. [PMID: 32476017 PMCID: PMC7801633 DOI: 10.1093/dote/doaa039] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/15/2020] [Accepted: 04/17/2020] [Indexed: 02/07/2023]
Abstract
Anastomotic leakage is one of the most severe complications after esophagectomy and is associated with increased postoperative morbidity and mortality. Several projects ranging from small retrospective studies to large collaborations have aimed to identify potential pre- and perioperative risk factors and to improve the diagnostic processes and management. Despite the increase in available literature, many aspects of anastomotic leakage are still debated, without the existence of widely accepted guidelines. The purpose of this review is to provide a cutting edge overview of the recent literature regarding the definition and classification of anastomotic leakage, risk factors, novel diagnostic modalities, and emerging therapeutic options for treatment and prevention of anastomotic leakage following esophagectomy.
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Affiliation(s)
- M Fabbi
- Fondazione IRCCS Cà Granda, Maggiore Policlinico Hospital, Milan, Italy
| | - E R C Hagens
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - M I van Berge Henegouwen
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
| | - S S Gisbertz
- Department of Surgery, Cancer Center Amsterdam, Amsterdam UMC, Location AMC, University of Amsterdam, Amsterdam, The Netherlands
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12
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Abstract
PURPOSE OF REVIEW Quantification and optimization of perioperative risk factors focusing on anesthesia-related strategies to reduce postoperative pulmonary complications (PPCs) after lung and esophageal surgery. RECENT FINDINGS There is an increasing amount of multimorbid patients undergoing thoracic surgery due to the demographic development and medical progress in perioperative medicine. Nevertheless, the rate of PPCs after thoracic surgery is still up to 30-50% with a significant influence on patients' outcome. PPCs are ranked first among the leading causes of early mortality after thoracic surgery. Although patients' risk factors are usually barely modifiable, current research focuses on procedural risk factors. From the surgical position, the minimal-invasive approach using video-assisted thoracoscopy and laparoscopy leads to a decreased rate of PPCs. The anesthesiological strategy to reduce the incidence of PPCs after thoracic surgery includes neuroaxial anesthesia, lung-protective ventilation, and goal-directed hemodynamic therapy. SUMMARY The main anesthesiological strategies to reduce PPCs after thoracic surgery include the use of epidural anesthesia, lung-protective ventilation: PEEP (positive end-expiratory pressure) of 5-8 mbar, tidal volume of 5 ml/kg BW (body weight) and goal-directed hemodynamics: CI (cardiac index) ≥ 2.5 l/min per m2, MAD (Mean arterial pressure) ≥ 70 mmHg, SVV (stroke volume variation) < 10% with a total amount of perioperative crystalloid fluids ≤ 6 ml/kg BW (body weight) per hour.
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Turi S, Marmiere M, Beretta L. Impact of intraoperative goal-directed fluid therapy in patients undergoing transthoracic oesophagectomy. Comment on Br J Anaesth 2020; 125: 953-61. Br J Anaesth 2020; 126:e94-e95. [PMID: 33349421 DOI: 10.1016/j.bja.2020.11.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 11/18/2022] Open
Affiliation(s)
- Stefano Turi
- Department of Anesthesiology, Vita-Salute University, San Raffaele Hospital, Milan, Italy.
| | - Marilena Marmiere
- Department of Anesthesiology, Vita-Salute University, San Raffaele Hospital, Milan, Italy
| | - Luigi Beretta
- Department of Anesthesiology, Vita-Salute University, San Raffaele Hospital, Milan, Italy
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14
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Impact of intraoperative goal-directed fluid therapy on major morbidity and mortality after transthoracic oesophagectomy: a multicentre, randomised controlled trial. Br J Anaesth 2020; 125:953-961. [DOI: 10.1016/j.bja.2020.08.060] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 08/25/2020] [Accepted: 08/28/2020] [Indexed: 12/21/2022] Open
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15
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Boekel MF, Venema CS, Kaufmann T, van der Horst ICC, Vos JJ, Scheeren TWL. The effect of compliance with a perioperative goal-directed therapy protocol on outcomes after high-risk surgery: a before-after study. J Clin Monit Comput 2020; 35:1193-1202. [PMID: 32920700 PMCID: PMC7486974 DOI: 10.1007/s10877-020-00585-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 08/21/2020] [Indexed: 12/30/2022]
Abstract
Perioperative goal-directed therapy is considered to improve patient outcomes after high-risk surgery. The association of compliance with perioperative goal-directed therapy protocols and postoperative outcomes is unclear. The purpose of this study is to determine the effect of protocol compliance on postoperative outcomes following high-risk surgery, after implementation of a perioperative goal-directed therapy protocol. Through a before-after study design, patients undergoing elective high-risk surgery before (before-group) and after implementation of a perioperative goal-directed therapy protocol (after-group) were included. Perioperative goal-directed therapy in the after-group consisted of optimized stroke volume variation or stroke volume index and optimized cardiac index. Additionally, the association of protocol compliance with postoperative complications when using perioperative goal-directed therapy was assessed. High protocol compliance was defined as ≥ 85% of the procedure time spent within the individual targets. The difference in complications during the first 30 postoperative days before and after implementation of the protocol was assessed. In the before-group, 214 patients were included and 193 patients in the after-group. The number of complications was higher in the before-group compared to the after-group (n = 414 vs. 282; p = 0.031). In the after-group, patients with high protocol compliance for stroke volume variation or stroke volume index had less complications compared to patients with low protocol compliance for stroke volume variation or stroke volume index (n = 187 vs. 90; p = 0.01). Protocol compliance by the attending clinicians is essential and should be monitored to facilitate an improvement in postoperative outcomes desired by the implementation of perioperative goal-directed therapy protocols.
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Affiliation(s)
- M F Boekel
- Department of Anesthesiology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, PO Box 30.001, 9700RB, Groningen, The Netherlands
| | - C S Venema
- Department of Anesthesiology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, PO Box 30.001, 9700RB, Groningen, The Netherlands
| | - T Kaufmann
- Department of Anesthesiology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, PO Box 30.001, 9700RB, Groningen, The Netherlands
| | - I C C van der Horst
- Chair of Department of Intensive Care, Maastricht University Medical Center+, Maastricht University, Maastricht, The Netherlands
| | - J J Vos
- Department of Anesthesiology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, PO Box 30.001, 9700RB, Groningen, The Netherlands.
| | - T W L Scheeren
- Department of Anesthesiology, University of Groningen, University Medical Center Groningen, Hanzeplein 1, PO Box 30.001, 9700RB, Groningen, The Netherlands
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16
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Che L, Zhang XH, Li X, Zhang YL, Xu L, Huang YG. Outcome impact of individualized fluid management during spine surgery: a before-after prospective comparison study. BMC Anesthesiol 2020; 20:181. [PMID: 32698766 PMCID: PMC7376681 DOI: 10.1186/s12871-020-01092-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 07/13/2020] [Indexed: 02/11/2023] Open
Abstract
Background Individualized fluid management (IFM) has been shown to be useful to improve the postoperative outcome of patients undergoing major abdominal surgery. A limited number of clinical studies have been done in orthopaedic patients and have yielded conflicting results. We designed the present study to investigate the clinical impact of IFM in patients undergoing major spine surgery. Methods This is a before-after study done in 300 patients undergoing posterior spine arthrodesis. Postoperative outcomes were compared between control group implementing standard fluid management (n = 150) and IFM group (n = 150) guided by fluid protocol based on continuous stroke volume monitoring and optimization. The primary outcome measure was the proportion of patients who developed one or more complications within 30 days following surgery. Results During surgery, patients received on average the same volume of crystalloids (7.4 vs 7.2 ml/kg/h) and colloids (1.6 vs 1.6 ml/kg/h) before and after the implementation of IFM. During 30 days following surgery, the proportion of patients who developed one or more complications was lower in the IFM group (32 vs 48%, p < 0.01). This difference was mainly explained by a significant decrease in post-operative nausea and vomiting (from 38 to 19%, p < 0.01), urinary tract infections (from 9 to 1%, p < 0.01) and surgical site infections (from 5 to 1%, p < 0.05). Median hospital length of stay was not affected by the implementation of IFM. Conclusion In patients undergoing major spine surgery, the implementation of IFM was associated with a significant decrease in postoperative morbidity. Trial registration ClinicalTrials.gov Identifier: NCT02470221. Prospectively registered on June 12, 2015.
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Affiliation(s)
- Lu Che
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Xiu H Zhang
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Xu Li
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Yue L Zhang
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Li Xu
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, 100730, China.
| | - Yu G Huang
- Department of Anesthesiology, Peking Union Medical College Hospital, Beijing, 100730, China
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Wu H, Wang W, Zhao G, Xue Q. Effect of intraoperative fluid administration on perioperative outcomes in patients undergoing McKeown esophagogastrectomy. Chin J Cancer Res 2019; 31:742-748. [PMID: 31814678 PMCID: PMC6856707 DOI: 10.21147/j.issn.1000-9604.2019.05.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Objective Fluid therapy is one of the key components of perioperative management. However, evidence of intraoperative fluid (IOF) administration affecting clinical outcomes following McKeown esophagogastrectomy remains limited. This study investigated the impact of IOF on clinical outcomes after McKeown esophagogastrectomy. Methods Patients who underwent McKeown esophagogastrectomy between July 2013 and July 2016 were identified. Preoperative, intraoperative and postoperative variables for each eligible patient were retrospectively collected from our electronic medical records and anesthetic records. IOF rates were determined and their relationships to postoperative clinical outcomes were compared. Results A total of 546 patients were enrolled in the analysis. The median IOF rate was 8.87 mL/kg/h. We divided the patients into two groups: a low fluid volume group (LFVG <8.87 mL/kg/h, n=273) and a high fluid volume group (HFVG ≥8.87 mL/kg/h, n=273). No statistically significant differences in postoperative clinical outcomes were found between LFVG and HFVG either before or after propensity score matching. Conclusions No effect of IOF administration on clinical outcomes in patients undergoing McKeown esophagogastrectomy was identified. Further high-quality studies examining the influence of IOF administration on clinical outcomes following McKeown esophagogastrectomy are still needed.
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Affiliation(s)
- Hongliang Wu
- Department of Anesthesiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Wen Wang
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing 100029, China
| | - Gefei Zhao
- Department of Vascular Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Qi Xue
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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18
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Oya S, Yamashita H, Iwata R, Kawasaki K, Tanabe A, Yagi K, Aikou S, Seto Y. Perioperative fluid dynamics evaluated by bioelectrical impedance analysis predict infectious surgical complications after esophagectomy. BMC Surg 2019; 19:184. [PMID: 31791292 PMCID: PMC6889694 DOI: 10.1186/s12893-019-0652-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 11/26/2019] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Transthoracic esophagectomy, among the most invasive surgeries, is highly associated with postoperative infectious complications which adversely affect postoperative management including fluid dynamics. The aim of the study is to evaluate the utility of perioperative bioelectrical impedance analysis (BIA) measurements for the patients after transthoracic esophagectomy. METHOD Multi-frequency BIA measurements were conducted in 24 patients undergoing transthoracic esophagectomy preoperatively, at 1 h after surgery, and twice daily for the following 7 days. The amounts of extracellular water (ECW), internal cellular water (ICW), total body water (TBW), and fat-free mass (FFM) were calculated. Changing trends in variables were analyzed, and the patients were subdivided according to the presence of infectious surgical adverse events to identify differences in fluid dynamics. RESULTS ECW was the major body fluid compartment showing an increase after surgery, and peaked on postoperative day (POD) 2. Twelve patients experienced infectious complications. The peaks of changes in ECW and ECW/TBW appeared earlier and their values at the highest peak were significantly lower in the group without infectious complications on POD 2. The ICW/FFM value showed a mild decrease as compared to POD1 and then gradually recovered. It was significantly lower even before surgery and showed the most significant stratification on POD2. ECW/TBW of 48% and ICW/FFM of 37% on POD2 were predictive cut-off values for infectious adverse events with high area-under receiver operating characteristic (ROC) curves: 0.80 or higher. CONCLUSION BIA measurements are useful for monitoring fluid retention and may predict infectious complications in the early phase after transthoracic esophagectomy. TRIAL REGISTRATION Registry name: UMIN-CTR, ID: UMIN000030734, Registered on January 9, 2018, retrospectively registered.
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Affiliation(s)
- Shuichiro Oya
- Department of Gastrointestinal Surgery, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Hiroharu Yamashita
- Department of Gastrointestinal Surgery, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Ryohei Iwata
- Department of Gastrointestinal Surgery, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Koichiro Kawasaki
- Department of Gastrointestinal Surgery, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Asami Tanabe
- Department of Gastrointestinal Surgery, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Koichi Yagi
- Department of Gastrointestinal Surgery, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Susumu Aikou
- Department of Bariatric & Metabolic Care, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yasuyuki Seto
- Department of Gastrointestinal Surgery, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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Field RR, Mai T, Hanna S, Harrington B, Calderon MD, Rinehart J. Lack of impact of nil-per-os (NPO) time on goal-directed fluid delivery in first case versus afternoon case starts: a retrospective cohort study. BMC Anesthesiol 2019; 19:191. [PMID: 31656163 PMCID: PMC6815464 DOI: 10.1186/s12871-019-0864-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 09/30/2019] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Goal Directed Fluid Therapy (GDFT) represents an objective fluid replacement algorithm. The effect of provider variability remains a confounder. Overhydration worsens perioperative morbidity and mortality; therefore, the impact of the calculated NPO deficit prior to the operating room may reach harm. METHODS A retrospective single-institution study analyzed patients at UC Irvine Medical Center main operating rooms from September 1, 2013 through September 1, 2015 receiving GDFT. The primary study question asked if GDFT suggested different fluid delivery after different NPO periods, while reducing inter-provider variability. We created two patient groups distinguished by 0715 surgical start time or start time after 1200. We analyzed fluid administration totals with either a 1:1 crystalloid to colloid ratio or a 3:1 ratio. We performed direct group-wise testing on total administered volume expressed as total ml, total ml/hr., and total ml/kg/hr. between the first case start (AM) and afternoon case (PM) groups. A linear regression model included all baseline covariates that differed between groups as well as plausible confounding factors for differing fluid needs. Finally, we combined all patients from both groups, and created NPO time to total administered fluid scatterplots to assess the effect of patient-reported NPO time on fluid administration. RESULTS Whether reported by total administered volume or net fluid volume, and whether we expressed the sum as ml, ml/hr., or ml/kg/hr., the AM group received more fluid on average than the PM group in all cases. In the general linear models, for all significant independent variables evaluated, AM vs PM case start did not reach significance in both cases at p = 0.64 and p = 0.19, respectively. In scatterplots of NPO time to fluid volumes, absolute adjusted and unadjusted R2 values are < 0.01 for each plot, indicating virtually non-existent correlations between uncorrected NPO time and fluid volumes measured. CONCLUSIONS This study showed NPO periods do not influence a patient's volume status just prior to presentation to the operating room for surgical intervention. We hope this data will influence the practice of providers routinely replacing calculated NPO period volume deficit; particularly with those presenting with later surgical case start times.
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Affiliation(s)
- R Ryan Field
- Department of Anesthesiology & Perioperative Care, University of California Irvine, 101 The City Drive South, Orange, CA, 92868, USA.
| | - Tuan Mai
- Department of Anesthesiology & Perioperative Care, University of California Irvine, 101 The City Drive South, Orange, CA, 92868, USA
| | | | - Brian Harrington
- Department of Anesthesiology & Perioperative Care, University of California Irvine, 101 The City Drive South, Orange, CA, 92868, USA
| | - Michael-David Calderon
- Department of Anesthesiology & Perioperative Care, University of California Irvine, 101 The City Drive South, Orange, CA, 92868, USA
| | - Joseph Rinehart
- Department of Anesthesiology & Perioperative Care, University of California Irvine, 101 The City Drive South, Orange, CA, 92868, USA
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On-demand versus continuous rocuronium infusion for deep neuromuscular relaxation in patients undergoing thoraco-laparoscopic esophagectomy: a randomized-controlled clinical trial (DEPTH). Can J Anaesth 2019; 66:1062-1074. [DOI: 10.1007/s12630-019-01373-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 02/28/2019] [Accepted: 03/02/2019] [Indexed: 12/17/2022] Open
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Delayed recovery following thoracic surgery: persistent issues and potential interventions. Curr Opin Anaesthesiol 2019; 32:3-9. [PMID: 30507683 DOI: 10.1097/aco.0000000000000669] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
PURPOSE OF REVIEW Lung and esophageal surgery remain a curative option for resectable cancers. However, despite advances in surgical and anesthesia practices, the inclusion of patients with comorbidities that would have previously not been offered curative resection presents additional concerns and challenges. RECENT FINDINGS Perioperative complication rates remain high and prolonged and/or painful recovery are common. Further, many patients face a permanent decline in their functional status, which negatively affects their quality of life. Examination of the variables associated with high complications following thoracic surgery reveals patient, physician, and institutional factors in the forefront. Anesthesiologist training, Enhanced Recovery After Surgery protocols, and preparations to minimize "failure to rescue" when a complication does arise are key strategies to address adverse outcomes. SUMMARY Delayed and complicated recovery after thoracic noncardiac surgery persist in current practice. This review analyzes the diverse factors that can impact complications and quality of life after lung surgery and the interventions that can help decrease length of stay and improve return to baseline conditions.
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Klevebro F, Boshier PR, Low DE. Application of standardized hemodynamic protocols within enhanced recovery after surgery programs to improve outcomes associated with anastomotic leak and conduit necrosis in patients undergoing esophagectomy. J Thorac Dis 2019; 11:S692-S701. [PMID: 31080646 PMCID: PMC6503292 DOI: 10.21037/jtd.2018.11.141] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Accepted: 11/29/2018] [Indexed: 12/13/2022]
Abstract
Esophagectomy for cancer is associated with high risk for postoperative morbidity. The most serious regularly encountered complication is anastomotic leak and the most feared individual complication is conduit necrosis. Both of these complications affect the length of stay, mortality, quality of life, and survival for patients undergoing esophageal resection. The maintenance of conduit viability is of primary importance in the perioperative care of patients following esophageal resection. It has been shown that restrictive fluid management may be associated with improved postoperative outcomes in abdominal and other types of surgery, but many factors can affect the incidence of anastomotic leak and the viability of the gastric conduit. We have performed a comprehensive review with the aim to give an overview of the available evidence for the use of standardized hemodynamic protocols (SHPs) for esophagectomy and review the hemodynamic protocol, which has been applied within a standardized clinical pathway (SCP) at the Department of Thoracic surgery at the Virginia Mason Medical Center between 2004-2018 where the anastomotic leak rate over the period has been 5.2% and the incidence of conduit necrosis requiring surgical management is zero. The literature review demonstrates that there are few high quality studies that provide scientific evidence for the use of a SHP. The evidence indicates that the use of goal-directed hemodynamic monitoring might be associated with a reduced risk for postoperative complications, shortened length of stay, and decreased need for intensive care unit stay. We propose that the routine application of a SHP can provide a uniform infrastructure to optimize conduit perfusion and decrease the incidence of anastomotic leak.
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Affiliation(s)
- Fredrik Klevebro
- Department of Thoracic Surgery, Virginia Mason Medical Center, Seattle, USA
| | - Piers R Boshier
- Department of Thoracic Surgery, Virginia Mason Medical Center, Seattle, USA
| | - Donald E Low
- Department of Thoracic Surgery, Virginia Mason Medical Center, Seattle, USA
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Buise MP. Proper volume management during anesthesia for esophageal resection. J Thorac Dis 2019; 11:S702-S706. [PMID: 31080647 PMCID: PMC6503285 DOI: 10.21037/jtd.2019.01.33] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 01/09/2019] [Indexed: 12/12/2022]
Abstract
Esophagectomy is a high-risk surgical procedure with significant postoperative morbidity and mortality. Proper fluid management is essential to reduce postoperative pulmonary complications. Restrictive management is advocated in ERAS based protocols and recent guidelines for esophagectomy, however Goal Directed treatment may be useful. Perioperative fluid management must always be seen in light of a multi modal approach and must be balanced at the needs of the patient and the surgical approach chosen.
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Affiliation(s)
- Marc P Buise
- Department of Anesthesia and Intensive Care, Catharina Hospital Eindhoven, Eindhoven, The Netherlands
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Goal-directed therapy during transthoracic oesophageal resection does not improve outcome. Eur J Anaesthesiol 2019; 36:153-161. [DOI: 10.1097/eja.0000000000000908] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Jin J, Min S, Liu D, Liu L, Lv B. Clinical and economic impact of goal-directed fluid therapy during elective gastrointestinal surgery. Perioper Med (Lond) 2018; 7:22. [PMID: 30305890 PMCID: PMC6171290 DOI: 10.1186/s13741-018-0102-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 08/02/2018] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Several randomized controlled trials suggest that goal-directed fluid therapy (GDFT) may result in improved postoperative outcomes. The aim of this study was to assess the clinical and financial impact of the real-life implementation of intraoperative GDFT in patients undergoing elective gastrointestinal surgery in a Chinese tertiary medical center. METHODS This Quality Improvement Program (QIP) study comprised three phases of 5, 1, and 5 months, respectively. During the first phase, we retrospectively collected perioperative data from patients who received standard intraoperative fluid management from January to May 2016. Then a 1-month training period allowed the clinical staff to become familiar with the GDFT protocol. After the training phase, GDFT was used from July to November 2016. In the GDFT group, stroke volume (SV) was continuously monitored and optimized towards the plateau of the Frank-Starling curve. The primary outcome measure was postoperative morbidity (the proportion of patients with one or more complications within 30 days after surgery). Secondary outcomes were total hospital cost, postoperative length of hospital stay, and 30-day mortality. RESULTS Data from 200 patients before (control group) and 201 patients after the implementation of GDFT (GDFT group) were collected and compared. There was no significant difference in demographics and surgical procedures between the two groups. Postoperative morbidity was significantly lower in the GDFT group than in the control group (30.8% vs. 44.0%, p = 0.006). No significant differences were observed for mean total hospital cost (76,793 RMB vs. 74,444 RMB; p = 0.430), median postoperative length of hospital stay (10 days vs. 10 days; p = 0.104), and 30-day mortality (1% vs. 0.5%; p = 0.565). CONCLUSION In patients undergoing gastrointestinal surgery, the implementation of a GDFT protocol was associated with a reduction in postoperative morbidity without increasing costs. TRIAL REGISTRATION clinicaltrials.gov, NCT02507557. Registered 13 July 2015.
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Affiliation(s)
- Juying Jin
- Department of Anesthesiology, the First Affiliated Hospital, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016 China
| | - Su Min
- Department of Anesthesiology, the First Affiliated Hospital, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016 China
| | - Dan Liu
- Department of Anesthesiology, the First Affiliated Hospital, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016 China
| | - Ling Liu
- Department of Anesthesiology, the First Affiliated Hospital, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016 China
| | - Bixiao Lv
- Department of Anesthesiology, the First Affiliated Hospital, Chongqing Medical University, 1 Youyi Road, Chongqing, 400016 China
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Chang AC. Centralizing Esophagectomy to Improve Outcomes and Enhance Clinical Research: Invited Expert Review. Ann Thorac Surg 2018; 106:916-923. [DOI: 10.1016/j.athoracsur.2018.04.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Accepted: 04/01/2018] [Indexed: 12/19/2022]
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Feng S, Yang S, Xiao W, Wang X, Yang K, Wang T. Effects of perioperative goal-directed fluid therapy combined with the application of alpha-1 adrenergic agonists on postoperative outcomes: a systematic review and meta-analysis. BMC Anesthesiol 2018; 18:113. [PMID: 30119644 PMCID: PMC6098606 DOI: 10.1186/s12871-018-0564-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 07/20/2018] [Indexed: 02/06/2023] Open
Abstract
Background Past studies have demonstrated that goal-directed fluid therapy (GDFT) may be more marginal than previously believed. However, beneficial effects of alpha-1 adrenergic agonists combined with appropriate fluid administration is getting more and more attention. This study aimed to systematically review the effects of goal-directed fluid therapy (GDFT) combined with the application of alpha-1 adrenergic agonists on postoperative outcomes following noncardiac surgery. Methods This meta-analysis included randomized controlled trials (RCTs) on GDFT combined with the application of alpha-1 adrenergic agonists in patients undergoing noncardiac surgery. The primary outcomes included the postoperative mortality rate and length of hospital stay (LOS). The secondary outcome indexes were the incidence of postoperative complications and recovery of postoperative gastrointestinal (GI) function. The traditional pairwise meta-analysis was conducted to compare the effect of fluid therapy. The quality of included RCTs was evaluated according to the Cochrane Collaboration’s risk-of-bias tool. Also, the publication bias was detected using funnel plots, Egger’s regression test, and Begg’s adjusted rank correlation test. The meta-analysis was conducted using the RevMan 5.3 and Stata 14.0 software. Results Thirty-two eligible RCTs were included in this meta-analysis. Perioperative GDFT combined with the application of alpha-1 adrenergic agonists was associated with a significant reduction in LOS (P = 0.002; I2 = 69%), and overall complication rates (P = 0.04; I2 = 41%). It facilitated gastrointestinal function recovery, as demonstrated by shortening the time to first flatus by 6.30 h (P < 0.00001; I2 = 91%) and the time to toleration of solid food by 1.69 days (P < 0.00001; I2 = 0%). Additionally, there was no significant reduction in short-term mortality in the GDFT combined with alpha-1 adrenergic agonists group (P = 0.05; I2 = 0%). Conclusion This systematic review of available evidence suggested that the use of perioperative GDFT combined with alpha-1 adrenergic agonists might facilitate recovery in patients undergoing noncardiac surgery. Electronic supplementary material The online version of this article (10.1186/s12871-018-0564-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shuai Feng
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Shuyi Yang
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Wei Xiao
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xue Wang
- Department of Library, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Kun Yang
- Department of Evidence-based Medicine, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Tianlong Wang
- Department of Anesthesiology, Xuanwu Hospital, Capital Medical University, Beijing, China.
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Watanabe M, Okamura A, Toihata T, Yamashita K, Yuda M, Hayami M, Fukudome I, Imamura Y, Mine S. Recent progress in perioperative management of patients undergoing esophagectomy for esophageal cancer. Esophagus 2018; 15:160-164. [PMID: 29951987 DOI: 10.1007/s10388-018-0617-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 04/17/2018] [Indexed: 02/03/2023]
Abstract
Esophagectomy remains the mainstay of curative intent treatment for esophageal cancer. Oncologic esophagectomy is a highly invasive surgery and both morbidity and mortality rates still remain high. Recently, it has been revealed that multidisciplinary perioperative management can decrease the postoperative complications after esophagectomy. In this review, we summarized the recent progress in each component of multidisciplinary perioperative care bundle, including oral hygiene, cessation of smoking and alcohol, respiratory training, measurement of physical fitness, swallowing evaluation and rehabilitation, nutritional support, pain control and management of delirium. The accumulation of evidence and the popularization of knowledge will increase safety of esophagectomy and thus improve the outcome of patients with esophageal cancer.
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Affiliation(s)
- Masayuki Watanabe
- Esophageal Cancer Division, Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan.
| | - Akihiko Okamura
- Esophageal Cancer Division, Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Tasuku Toihata
- Esophageal Cancer Division, Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Kotaro Yamashita
- Esophageal Cancer Division, Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Masami Yuda
- Esophageal Cancer Division, Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Masaru Hayami
- Esophageal Cancer Division, Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Ian Fukudome
- Esophageal Cancer Division, Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Yu Imamura
- Esophageal Cancer Division, Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
| | - Shinji Mine
- Esophageal Cancer Division, Department of Gastroenterological Surgery, Cancer Institute Hospital of Japanese Foundation for Cancer Research, 3-8-31 Ariake, Koto-ku, Tokyo, 135-8550, Japan
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Eschenfeldt PC, Kartoun U, Heberle CR, Kong CY, Nishioka NS, Ng K, Kamarthi S, Hur C. Analysis of factors associated with extended recovery time after colonoscopy. PLoS One 2018; 13:e0199246. [PMID: 29927978 PMCID: PMC6013091 DOI: 10.1371/journal.pone.0199246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Accepted: 04/20/2018] [Indexed: 01/09/2023] Open
Abstract
Background & aims A common limiting factor in the throughput of gastrointestinal endoscopy units is the availability of space for patients to recover post-procedure. This study sought to identify predictors of abnormally long recovery time after colonoscopy performed with procedural sedation. In clinical research, this type of study would be performed using only one regression modeling approach. A goal of this study was to apply various “machine learning” techniques to see if better prediction could be achieved. Methods Procedural data for 31,442 colonoscopies performed on 29,905 adult patients at Massachusetts General Hospital from 2011 to 2015 were analyzed to identify potential predictors of long recovery times. These data included the identities of hospital personnel, and the initial statistical analysis focused on the impact of these personnel on recovery time via multivariate logistic regression. Secondary analyses included more information on patient vitals both to identify secondary predictors and to predict long recoveries using more complex techniques. Results In univariate analysis, the endoscopist, procedure room nurse, recovery room nurse, and surgical technician all showed a statistically significant relationship to long recovery times, with p-value below 0.0001 in all cases. In the multivariate logistic regression, the most significant predictor of a long recovery time was the identity of the recovery room nurse, with the endoscopist also showing a statistically significant relationship with a weaker effect. Complex techniques led to a negligible improvement over simple techniques in prediction of long recovery periods. Conclusion The hospital personnel involved in performing a colonoscopy show a strong association with the likelihood of a patient spending an abnormally long time recovering from the procedure, with the most pronounced effect for the nurse in the recovery room. The application of more advanced approaches to improve prediction in this clinical data set only yielded modest improvements.
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Affiliation(s)
- Patrick C Eschenfeldt
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA, United States of America.,Gastrointestinal Unit, Massachusetts General Hospital, Boston, MA, United States of America.,Harvard Medical School, Boston, MA, United States of America
| | - Uri Kartoun
- Center for Computational Health, IBM Research, Cambridge, MA, United States of America
| | - Curtis R Heberle
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA, United States of America.,Gastrointestinal Unit, Massachusetts General Hospital, Boston, MA, United States of America
| | - Chung Yin Kong
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA, United States of America.,Harvard Medical School, Boston, MA, United States of America
| | - Norman S Nishioka
- Gastrointestinal Unit, Massachusetts General Hospital, Boston, MA, United States of America.,Harvard Medical School, Boston, MA, United States of America
| | - Kenney Ng
- Center for Computational Health, IBM Research, Cambridge, MA, United States of America
| | - Sagar Kamarthi
- Northeastern University College of Engineering, Boston, MA, United States of America
| | - Chin Hur
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA, United States of America.,Gastrointestinal Unit, Massachusetts General Hospital, Boston, MA, United States of America.,Harvard Medical School, Boston, MA, United States of America
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30
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Lan H, Zhou X, Xue J, Liu B, Chen G. The ability of left ventricular end-diastolic volume variations measured by TEE to monitor fluid responsiveness in high-risk surgical patients during craniotomy: a prospective cohort study. BMC Anesthesiol 2017; 17:165. [PMID: 29202703 PMCID: PMC5716247 DOI: 10.1186/s12871-017-0456-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 11/24/2017] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND This study was aimed to evaluate the ability of left ventricular end-diastolic volume variations (LVEDVV) measured by transesophageal echocardiography (TEE) compared with stroke volume variation (SVV) obtained by the FloTrac/Vigileo monitor to predict fluid responsiveness, in patients undergoing craniotomy with goal direct therapy. METHODS We used SVV obtained by the FloTrac/Vigileo monitor to manage intraoperative hypotension in adult patients undergoing craniotomy (ASA III - IV) after obtaining IRB approval and informed consent. The LVEDVV were measured by TEE through the changes of left ventricular short diameter of axle simultaneously. When cardiac index (CI) ≤ 2.5 and SVV ≥ 15%, comparisons were made between the two devices before and after volume expansion. RESULTS We enrolled twenty-six patients referred for craniotomy in this study and 145 pairs of data were obtained. Mean Vigileo-SVV and TEE-LVEDVV were 17.8 ± 2.78% and 22.1 ± 7.25% before volume expansion respectively, and were 10.95 ± 2.8% and 13.58 ± 3.78% after volume expansion respectively (P < 0.001). The relationship between Vigileo-SVV and TEE-LVEDVV was significant (r2 = 0.55; p < 0.001). Agreement between Vigileo-SVV and TEE-LVEDVV was 3.3% ± 3.9% (mean bias ± SD, Bland-Altman). CONCLUSIONS For fluid responsiveness of patients during craniotomy in ASA III-IV, LVEDVV measured by left ventricular short diameter of axle using M type echocaidiographic measurement seems an acceptable monitoring indicator. This accessible method has promising clinical applications in situations where volume and cardiac function monitoring is of great importance during surgery. TRIAL REGISTRATION Chinese Clinical Trial Registry, ChiCTR-TRC-13003583 , August 20, 2013.
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Affiliation(s)
- Haidan Lan
- Department of Anesthesiology, West China Hospital of Sichuan University, No.37, Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China
| | - Xiaoshuang Zhou
- Department of Anesthesiology, West China Hospital of Sichuan University, No.37, Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China
| | - Jing Xue
- Department of Anesthesiology, West China Hospital of Sichuan University, No.37, Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China
| | - Bin Liu
- Department of Anesthesiology, West China Hospital of Sichuan University, No.37, Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China
| | - Guo Chen
- Department of Anesthesiology, West China Hospital of Sichuan University, No.37, Guo Xue Xiang, Chengdu, 610041, Sichuan, People's Republic of China.
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