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Lee IK, Chang PH, Yeh CH, Li WF, Yin SM, Lin YC, Tzeng WJ, Chen CL, Lin CC, Wang CC. Risk factors and crucial prognostic indicators of mortality in liver transplant recipients with bloodstream infections: A comprehensives study of 1049 consecutive liver transplants over an 11-year period. JOURNAL OF MICROBIOLOGY, IMMUNOLOGY, AND INFECTION = WEI MIAN YU GAN RAN ZA ZHI 2024:S1684-1182(24)00109-9. [PMID: 38944568 DOI: 10.1016/j.jmii.2024.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 04/22/2024] [Accepted: 06/15/2024] [Indexed: 07/01/2024]
Abstract
BACKGROUND Liver transplantation (LT) is a pivotal treatment for end-stage liver disease. However, bloodstream infections (BSI) in the post-operative period present a significant threat to patient survival. This study aims to identify risk factors for post-LT BSI and crucial prognostic indicators for mortality among affected patients. METHODS We conducted a retrospective study of adults diagnosed with end-stage liver disease who underwent their initial LT between 2010 and 2021. Those who developed BSI post-LT during the same hospital admission were classified into the BSI group. RESULTS In this cohort of 1049 patients, 89 (8.4%) developed BSI post-LT, while 960 (91.5%) did not contract any infection. Among the BSI cases, 17 (19.1%) patients died. The average time to BSI onset was 48 days, with 46% occurring within the first month post-LT. Of the 123 isolated microorganisms, 97 (78.8%) were gram-negative bacteria. BSI patients had significantly longer stays in the intensive care unit and hospital compared to non-infected patients. The 90-day and in-hospital mortality rates for recipients with BSI were significantly higher than those without infections. Multivariate analysis indicated heightened BSI risk in patients with blood loss >3000 mL during LT (odds ratio [OR] 2.128), re-operation within 30 days (OR 2.341), post-LT bile leakage (OR 3.536), and graft rejection (OR 2.194). Additionally, chronic kidney disease (OR 6.288), each 1000 mL increase in intraoperative blood loss (OR 1.147) significantly raised mortality risk in BSI patients, whereas each 0.1 mg/dL increase in albumin levels correlated with a lower risk of death from BSI (OR 0.810). CONCLUSIONS This study underscores the need for careful monitoring and management in the post-LT period, especially for patients at higher risk of BSI. It also suggests that serum albumin levels could serve as a valuable prognostic indicator for outcomes in LT recipients experiencing BSI.
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Affiliation(s)
- Ing-Kit Lee
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan; Chang Gang University, College of Medicine, Taoyuan, Taiwan
| | - Po-Hsun Chang
- Department of Pharmacy, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Cheng-Hsi Yeh
- Department of Surgery, Liver Transplantation Program, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Wei-Feng Li
- Department of Surgery, Liver Transplantation Program, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Shih-Min Yin
- Department of Surgery, Liver Transplantation Program, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Yu-Cheng Lin
- Department of Surgery, Liver Transplantation Program, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Wei-Juo Tzeng
- Department of Surgery, Liver Transplantation Program, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Chao-Long Chen
- Department of Surgery, Liver Transplantation Program, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Chih-Che Lin
- Department of Surgery, Liver Transplantation Program, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Chih-Chi Wang
- Chang Gang University, College of Medicine, Taoyuan, Taiwan; Department of Surgery, Liver Transplantation Program, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.
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Chadha R, Sakai T, Rajakumar A, Shingina A, Yoon U, Patel D, Spiro M, Bhangui P, Sun LY, Humar A, Bezinover D, Findlay J, Saigal S, Singh S, Yi NJ, Rodriguez-Davalos M, Kumar L, Kumaran V, Agarwal S, Berlakovich G, Egawa H, Lerut J, Clemens Broering D, Berenguer M, Cattral M, Clavien PA, Chen CL, Shah S, Zhu ZJ, Ascher N, Bhangui P, Rammohan A, Emond J, Rela M. Anesthesia and Critical Care for the Prediction and Prevention for Small-for-size Syndrome: Guidelines from the ILTS-iLDLT-LTSI Consensus Conference. Transplantation 2023; 107:2216-2225. [PMID: 37749811 DOI: 10.1097/tp.0000000000004803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
BACKGROUND During the perioperative period of living donor liver transplantation, anesthesiologists and intensivists may encounter patients in receipt of small grafts that puts them at risk of developing small for size syndrome (SFSS). METHODS A scientific committee (106 members from 21 countries) performed an extensive literature review on aspects of SFSS with proposed recommendations. Recommendations underwent a blinded review by an independent expert panel and discussion/voting on the recommendations occurred at a consensus conference organized by the International Liver Transplantation Society, International Living Donor Liver Transplantation Group, and Liver Transplantation Society of India. RESULTS It was determined that centers with experience in living donor liver transplantation should utilize potential small for size grafts. Higher risk recipients with sarcopenia, cardiopulmonary, and renal dysfunction should receive small for size grafts with caution. In the intraoperative phase, a restrictive fluid strategy should be considered along with routine use of cardiac output monitoring, as well as use of pharmacologic portal flow modulation when appropriate. Postoperatively, these patients can be considered for enhanced recovery and should receive proactive monitoring for SFSS, nutrition optimization, infection prevention, and consideration for early renal replacement therapy for avoidance of graft congestion. CONCLUSIONS Our recommendations provide a framework for the optimal anesthetic and critical care management in the perioperative period for patients with grafts that put them at risk of developing SFSS. There is a significant limitation in the level of evidence for most recommendations. This statement aims to provide guidance for future research in the perioperative management of SFSS.
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Affiliation(s)
- Ryan Chadha
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Jacksonville, FL
| | - Tetsuro Sakai
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Akila Rajakumar
- Institute of Liver Disease and Transplantation, Dr Rela Institute and Medical Centre, Bharath Institute of Higher Education and Research, Chennai, India
| | - Alexandra Shingina
- Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, Vanderbilt University Medical Center, Nashville, TN
| | - Uzung Yoon
- Department of Anesthesiology, Thomas Jefferson University Hospital, Philadelphia, PA
| | - Dhupal Patel
- Department of Anesthesia and Intensive Care Medicine, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - Michael Spiro
- Department of Anaesthesia, Royal Devon and Exeter and Department of Anaesthesia and Intensive Care Medicine, The Royal Free Hospital, London, United Kingdom
| | - Pooja Bhangui
- Medanta Institute of Liver Transplantation and Regenerative Medicine, Medanta-The Medicity, Delhi, NCR, India
| | - Li-Ying Sun
- Department of Critical Liver Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Abhinav Humar
- Division of Transplantation, Department of Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Dmitri Bezinover
- Department of Anesthesiology and Critical Care, University of Pennsylvania, Philadelphia, PA
| | - James Findlay
- Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Rochester, MN
| | - Sanjiv Saigal
- Centre of Liver and Biliary Sciences, Centre of Gastroenterology, Hepatology and Endoscopy, Max Super Specialty Hospital, New Delhi, India
| | - Shweta Singh
- Department of Anesthesiology and Critical Care, Max Super Speciality Hospital, Saket, New Delhi, India
| | - Nam-Joon Yi
- Division of HBP Surgery, Department of Surgery, Seoul National University, College of Medicine, Seoul, Korea
| | - Manuel Rodriguez-Davalos
- Division of Transplantation and Advanced Hepatobiliary Surgery, University of Utah, Primary Children's Hospital, Salt Lake City, UT
| | - Lakshmi Kumar
- Department of Anesthesiology, Amrita Hospital, Kochi, India
| | - Vinay Kumaran
- Division of Transplant Surgery, Department of Surgery, VCU Medical Center, Richmond, VA
| | - Shaleen Agarwal
- Centre of Liver and Biliary Sciences, Centre of Gastroenterology, Hepatology and Endoscopy, Max Super Specialty Hospital, New Delhi, India
| | | | - Hiroto Egawa
- Department of Surgery, Tokyo Women's Medical University, Tokyo, Japan
| | - Jan Lerut
- Cliniques Universitaires Saint-Luc, Brussels, Belgium
| | - Dieter Clemens Broering
- Organ Transplant Center of Excellence, King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Marina Berenguer
- Liver Transplantation and Hepatology Unit, La Fe University Hospital and IISLaFe and Ciberehd, Valencia, Spain
| | - Mark Cattral
- Ajmera Transplant Center, University of Toronto, Toronto, ON, Canada
| | | | - Chao-Long Chen
- Liver Transplantation Centre, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Samir Shah
- Department of Hepatology, Institute of Liver Disease, HPB Surgery and Transplant, Global Hospitals, Mumbai, India
| | - Zhi-Jun Zhu
- Liver Transplantation Center, National Clinical Research Center for Digestive Diseases, Beijing Friendship Hospital, Capital Medical University, Beijing, China
- Clinical Center for Pediatric Liver Transplantation, Capital Medical University, Beijing, China
| | - Nancy Ascher
- Department of Surgery, University of California, San Francisco, San Francisco, CA
| | - Prashant Bhangui
- Medanta Institute of Liver Transplantation and Regenerative Medicine, Medanta-The Medicity, Delhi, NCR, India
| | - Ashwin Rammohan
- Institute of Liver Disease and Transplantation, Dr Rela Institute and Medical Centre, Bharath Institute of Higher Education and Research, Chennai, India
| | - Jean Emond
- Liver and Abdominal Transplant Surgery, Columbia University Irving Medical Center, New York, NY
| | - Mohamed Rela
- Institute of Liver Disease and Transplantation, Dr Rela Institute and Medical Centre, Bharath Institute of Higher Education and Research, Chennai, India
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Osborn PM. Letter to the Editor Regarding "The Relation of Surgical Volume to Competence: When Is Enough, Enough?". Mil Med 2023; 188:85-87. [PMID: 36369965 DOI: 10.1093/milmed/usac336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 10/15/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- Patrick M Osborn
- Northeast Orthopaedics and Sports Medicine, San Antonio, TX 78217, USA
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Dunn R, Voleti S, Rowley S, Mackintosh C, Aqel B, Mathur A, Rosenfeld D, Cartin-Ceba R. Risk factors associated with urgent surgical reintervention due to postoperative hemorrhage after orthotopic liver transplantation. JOURNAL OF LIVER TRANSPLANTATION 2022. [DOI: 10.1016/j.liver.2022.100124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Singh SA, Pampaniya H, Kumar V, Kumar M, Jadaun SS, Yadav V, Saigal S, Gupta S. Living donor liver transplant outcomes during the COVID-19 pandemic: does a decrease in case volume impact the overall outcomes? KOREAN JOURNAL OF TRANSPLANTATION 2022; 36:127-135. [PMID: 35919202 PMCID: PMC9296980 DOI: 10.4285/kjt.22.0017] [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: 04/07/2022] [Revised: 05/07/2022] [Accepted: 05/14/2022] [Indexed: 11/25/2022] Open
Abstract
Background High-volume centers (HVCs) are classically associated with better outcomes. During the coronavirus disease 2019 (COVID-19) pandemic, there has been a decrease in the regular liver transplantation (LT) activity at our center. This study analyzed the effect of the decline in LT on posttransplant patient outcomes at our HVC. Methods We compared the surgical outcomes of patients who underwent LT during the COVID-19 pandemic lockdown (April 1, 2020 to September 30, 2020) with outcomes in the pre-pandemic calendar year (April 1, 2019 to March 31, 2020). Results During the 6 months of pandemic lockdown, 60 patients underwent LT (43 adults and 17 children) while 228 patients underwent LT (178 adults and 50 children) during the pre-pandemic calendar year. Patients in the pandemic group had significantly higher model for end-stage liver disease (MELD) scores (24.39±9.55 vs. 21.14±9.17, P=0.034), Child-Turcotte-Pugh scores (11.46±2.32 vs. 10.25±2.24, P=0.03), and incidence of acute-on-chronic liver failure (30.2% vs. 10.2%, P=0.002). Despite performing LT in sicker patients with COVID-19-related challenges, the 30-day (14% vs. 18.5%, P=0.479), 3-month (16.3% vs. 20.2%, P=0.557), and 6-month mortality rates (23.3% vs. 28.7%, P=0.477) were lower, but not statistically significant when compared to the pre-pandemic cohort. Conclusions During the COVID-19 pandemic lockdown the number of LT procedures performed at our HVC declined by half because prevailing conditions allowed LT in very sick patients only. Despite these changes, outcomes were not inferior during the pandemic period compared to the pre-pandemic calendar year. Greater individualization of patient care contributed to non-inferior outcomes in these sick recipients.
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Affiliation(s)
- Shweta A. Singh
- Department of Anaesthesiology and Critical Care, Center for Liver and Biliary Sciences, Max Super Speciality Hospital, Saket, New Delhi, India
| | - Hetal Pampaniya
- Department of Anaesthesiology and Critical Care, Center for Liver and Biliary Sciences, Max Super Speciality Hospital, Saket, New Delhi, India
| | - Vikram Kumar
- Department of Paediatric Gastroenterology and Hepatology, Center for Liver and Biliary Sciences, Max Super Speciality Hospital, Saket, New Delhi, India
| | - Mukesh Kumar
- Department of Hepatobiliary, Pancreatic Surgery and Liver Transplant, Center for Liver and Biliary Sciences, Max Super Speciality Hospital, Saket, New Delhi, India
| | - Shekhar Singh Jadaun
- Department of Gastroenterology and Hepatology, Center for Liver and Biliary Sciences, Max Super Speciality Hospital, Saket, New Delhi, India
| | - Vivek Yadav
- Department of Anaesthesiology and Critical Care, Center for Liver and Biliary Sciences, Max Super Speciality Hospital, Saket, New Delhi, India
| | - Sanjiv Saigal
- Department of Paediatric Gastroenterology and Hepatology, Center for Liver and Biliary Sciences, Max Super Speciality Hospital, Saket, New Delhi, India
| | - Subhash Gupta
- Department of Hepatobiliary, Pancreatic Surgery and Liver Transplant, Center for Liver and Biliary Sciences, Max Super Speciality Hospital, Saket, New Delhi, India
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6
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Cheng P, Li Z, Fu Z, Jian Q, Deng R, Ma Y. Small-For-Size Syndrome and Graft Inflow Modulation Techniques in Liver Transplantation. Dig Dis 2022; 41:250-258. [PMID: 35753308 DOI: 10.1159/000525540] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 05/30/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND Partial liver transplantation has recently been proposed to alleviate organ shortages. However, transplantation of a small-for-size graft is associated with an increased risk of posttransplant hepatic dysfunction, commonly referred to as small-for-size syndrome (SFSS). This review describes the etiology, pathological features, clinical manifestations, and diagnostic criteria of SFSS. Moreover, we summarize strategies to improve graft function, focusing on graft inflow modulation techniques. Finally, unmet needs and future perspectives are discussed. SUMMARY In fact, posttransplant SFSS can be attributed to various factors such as preoperative status of the recipients, surgical techniques, donor age, and graft quality, except for graft size. With targeted improvement measures, satisfactory clinical outcomes can be achieved in recipients at increased risk of SFSS. Given the critical role of relative portal hyperperfusion in the pathogenesis of SFSS, various pharmacological and surgical treatments have been established to reduce or partially divert excessive portal inflow, and recipients will benefit from individualized therapeutic regimens after careful evaluation of benefits against potential risks. However, there remain unmet needs for further research into different aspects of SFSS to better understand the correlation between portal hemodynamics and patient outcomes. KEY MESSAGES Contemporary transplant surgeons should consider various donor and recipient factors and develop case-specific prevention and treatment strategies to improve graft and recipient survival rates.
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Affiliation(s)
- Pengrui Cheng
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhongqiu Li
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zongli Fu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qian Jian
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ronghai Deng
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yi Ma
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Martin RK, Persson A, Moatshe G, Fenstad AM, Engebretsen L, Drogset JO, Visnes H. Low annual hospital volume of anterior cruciate ligament reconstruction is not associated with higher revision rates. Knee Surg Sports Traumatol Arthrosc 2022; 30:1575-1583. [PMID: 34236479 DOI: 10.1007/s00167-021-06655-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 07/01/2021] [Indexed: 01/18/2023]
Abstract
PURPOSE Surgery performed in low-volume centres has been associated with longer operating time, longer hospital stays, lower functional outcomes, and higher rates of revision surgery, complications and mortality. This has been reported consistently in the arthroplasty literature, but there is a paucity of data regarding the relationship between surgical volume and outcome following anterior cruciate ligament (ACL) reconstruction. The purpose was to compare ACL reconstruction failure rates between hospitals performing different annual surgical volumes. METHODS All patients from the Norwegian Knee Ligament Register having primary autograft ACL reconstruction between 2004 and 2016 were included. Hospital volume was divided into quintiles based on the number of ACL reconstructions performed annually, defined arbitrarily as: 1-12 (V1), 13-24 (V2), 25-49 (V3), 50-99 (V4) and ≥ 100 (V5) annual procedures. Kaplan-Meier estimated survival curves and survival percentages were calculated with revision ACL reconstruction as the end point. Secondary outcome measures included (1) mean change in Knee Injury and Osteoarthritis Outcome Score (KOOS) Quality of Life (QoL) and Sport subsections from pre-operative to 5-year follow-up and (2) subjective failure defined as KOOS QoL < 44. RESULTS Twenty thousand eight hundred and fifty patients met the inclusion criteria and 1195 (5.7%) underwent subsequent revision ACL reconstruction over the study period. Revision rates were lower in the lower volume hospitals compared with the higher volume hospitals (p < 0.001). There was no clinically significant difference in improvement between pre-operative and 5-year follow-up KOOS scores between hospital volume categories, but a higher proportion of patients having surgery at lower volume hospitals reported a subjective failure. Patients in the lower volume categories (V1-3) were more often male and older compared to the higher volume hospitals (V4-5). Concomitant meniscal injuries and participation in pivoting sports were most common in V5 compared with V1 (p < 0.001). Median operative time decreased as hospital volume increased, ranging from 90 min at V1 hospitals to 56 min at V5 hospitals (p < 0.001). CONCLUSION Patients having ACL reconstruction at lower volume hospitals had a lower rate of subsequent revision surgery relative to higher volume hospitals. However, complications occurred more frequently, operative duration was longer, and the number of patients reporting a subjective failure of ACL reconstruction was highest at these lower volume hospitals. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- R Kyle Martin
- Department of Orthopaedic Surgery, University of Minnesota, Minneapolis, MN, USA.
- Department of Orthopaedic Surgery, University of Minnesota, 1900 CentraCare Circle, Saint Cloud, MN, 56303, USA.
| | - Andreas Persson
- Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences, Oslo, Norway
- Department of Orthopedic Surgery, Martina Hansens Hospital, Baerum, Norway
- Norwegian National Knee Ligament Register, Haukeland University Hospital, Bergen, Norway
| | - Gilbert Moatshe
- Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences, Oslo, Norway
- Division of Orthopaedic Surgery, Oslo University Hospital, Oslo, Norway
| | - Anne Marie Fenstad
- Norwegian National Knee Ligament Register, Haukeland University Hospital, Bergen, Norway
| | - Lars Engebretsen
- Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences, Oslo, Norway
- Division of Orthopaedic Surgery, Oslo University Hospital, Oslo, Norway
| | - Jon Olav Drogset
- Norwegian National Knee Ligament Register, Haukeland University Hospital, Bergen, Norway
- Department of Orthopaedic Surgery, Trondheim University Hospital, Trondheim, Norway
| | - Håvard Visnes
- Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences, Oslo, Norway
- Norwegian National Knee Ligament Register, Haukeland University Hospital, Bergen, Norway
- Department of Orthopaedics, Sorlandet Hospital Kristiansand, Kristiansand, Norway
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