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Gale D, Al-Soufi S, MacDonald P, Nair P. Severe Acute Kidney Injury Postheart Transplantation: Analysis of Risk Factors. Transplant Direct 2024; 10:e1585. [PMID: 38380349 PMCID: PMC10876232 DOI: 10.1097/txd.0000000000001585] [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: 10/06/2023] [Revised: 12/19/2023] [Accepted: 12/29/2023] [Indexed: 02/22/2024] Open
Abstract
Background Acute kidney injury (AKI) is a common complication postheart transplantation and is associated with significant morbidity and increased mortality. Methods We conducted a single-center, retrospective, observational cohort study of 109 consecutive patients undergoing heart transplantation between September 2019 and September 2021 to determine major risk factors for, and the incidence of, severe postoperative AKI as defined by Kidney Disease Improving Global Outcomes criteria in the first 48-h posttransplantation and the impact that this has on mortality and dialysis dependence. Results One hundred nine patients were included in our study, 83 of 109 (78%) patients developed AKI, 42 (39%) developed severe AKI, and 37 (35%) required renal replacement therapy in the first-week posttransplantation. We found preoperative estimated glomerular filtration rate (eGFR), postoperative noradrenaline dose, and the need for postoperative mechanical circulatory support to be independent risk factors for the development of severe AKI. Patients who developed severe AKI had a 19% 12-mo mortality compared with 1% for those without. Of those who survived to hospital discharge, 20% of patients in the severe AKI group required dialysis at time of hospital discharge compared with 3% in those without severe AKI. Conclusion Severe AKI is common after heart transplantation. Preoperative kidney function, postoperative vasoplegia with high requirements for vasoactive drugs, and graft dysfunction with the need for mechanical circulatory supports were independently associated with the development of severe AKI in the first-week following heart transplantation. Severe AKI is associated with a significantly increased mortality and dialysis dependence at time of hospital discharge.
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Affiliation(s)
- David Gale
- Department of Intensive Care, Intensive Care, St Vincent’s Hospital, Sydney, NSW, Australia
| | - Suhel Al-Soufi
- Department of Intensive Care, Intensive Care, St Vincent’s Hospital, Sydney, NSW, Australia
- Department of Intensive Care, University of New South Wales, Sydney, NSW, Australia
| | - Peter MacDonald
- Department of Intensive Care, University of New South Wales, Sydney, NSW, Australia
- Department of Cardiology-Heart Transplant Unit, St Vincent’s Hospital Sydney, NSW, Australia
- Victor Chang Cardiac Research Institute, Sydney, NSW, Australia
| | - Priya Nair
- Department of Intensive Care, Intensive Care, St Vincent’s Hospital, Sydney, NSW, Australia
- Department of Intensive Care, University of New South Wales, Sydney, NSW, Australia
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Sun YT, Wu W, Yao YT. The association of vasoactive-inotropic score and surgical patients' outcomes: a systematic review and meta-analysis. Syst Rev 2024; 13:20. [PMID: 38184601 PMCID: PMC10770946 DOI: 10.1186/s13643-023-02403-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 11/30/2023] [Indexed: 01/08/2024] Open
Abstract
BACKGROUND The objective of this study is to conduct a systematic review and meta-analysis examining the relationship between the vasoactive-inotropic score (VIS) and patient outcomes in surgical settings. METHODS Two independent reviewers searched PubMed, Web of Science, EMBASE, Scopus, Cochrane Library, Google Scholar, and CNKI databases from November 2010, when the VIS was first published, to December 2022. Additional studies were identified through hand-searching the reference lists of included studies. Eligible studies were those published in English that evaluated the association between the VIS and short- or long-term patient outcomes in both pediatric and adult surgical patients. Meta-analysis was performed using RevMan Manager version 5.3, and quality assessment followed the Joanna Briggs Institute (JBI) Critical Appraisal Checklists. RESULTS A total of 58 studies comprising 29,920 patients were included in the systematic review, 34 of which were eligible for meta-analysis. Early postoperative VIS was found to be associated with prolonged mechanical ventilation (OR 5.20, 95% CI 3.78-7.16), mortality (OR 1.08, 95% CI 1.05-1.12), acute kidney injury (AKI) (OR 1.26, 95% CI 1.13-1.41), poor outcomes (OR 1.02, 95% CI 1.01-1.04), and length of stay (LOS) in the ICU (OR 3.50, 95% CI 2.25-5.44). The optimal cutoff value for the VIS as an outcome predictor varied between studies, ranging from 10 to 30. CONCLUSION Elevated early postoperative VIS is associated with various adverse outcomes, including acute kidney injury (AKI), mechanical ventilation duration, mortality, poor outcomes, and length of stay (LOS) in the ICU. Monitoring the VIS upon return to the Intensive Care Unit (ICU) could assist medical teams in risk stratification, targeted interventions, and parent counseling. SYSTEMATIC REVIEW REGISTRATION PROSPERO CRD42022359100.
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Affiliation(s)
- Yan-Ting Sun
- Department of Anesthesiology, Baoji High-Tech Hospital, Shaanxi, 721000, China
- Department of Anesthesiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100037, China
| | - Wei Wu
- Department of Anesthesiology, Baoji High-Tech Hospital, Shaanxi, 721000, China
| | - Yun-Tai Yao
- Department of Anesthesiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, 100037, China.
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Ex Vivo Heart Perfusion for Cardiac Transplantation Allowing for Prolonged Perfusion Time and Extension of Distance Traveled for Procurement of Donor Hearts: An Initial Experience in the United States. Transplant Direct 2023; 9:e1455. [PMID: 36845853 PMCID: PMC9949869 DOI: 10.1097/txd.0000000000001455] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 02/25/2023] Open
Abstract
Scarcity of donor hearts continues to be a challenge for heart transplantation (HT). The recently Food and Drug Administration-approved Organ Care System (OCS; Heart, TransMedics) for ex vivo organ perfusion enables extension of ex situ intervals and thus may expand the donor pool. Because postapproval real-world outcomes of OCS in HT are lacking, we report our initial experience. Methods We retrospectively reviewed consecutive patients who received HT at our institution in the post-Food and Drug Administration approval period from May 1 to October 15, 2022. Patients were divided into 2 groups: OCS versus conventional technique. Baseline characteristics and outcomes were compared. Results A total of 21 patients received HT during this period, 8 using OCS and 13 conventional techniques. All hearts were from donation after brain death donors. The indication for OCS was an expected ischemic time of >4 h. Baseline characteristics in the 2 groups were comparable. The mean distance traveled for heart recovery was significantly higher in the OCS group (OCS, 845 ± 337, versus conventional, 186 ± 188 mi; P < 0.001), as was the mean total preservation time (6.5 ± 0.7 versus 2.5 ± 0.7 h; P < 0.001). The mean OCS time was 5.1 ± 0.7 h. In-hospital survival in the OCS group was 100% compared with 92.3% in the conventional group (P = 0.32). Primary graft dysfunction was similar in both groups (OCS 12.5% versus conventional 15.4%; P = 0.85). No patient in the OCS group required venoarterial extracorporeal membrane oxygenation support after transplant compared with 1 in the conventional group (0% versus 7.7%; P = 0.32). The mean intensive care unit length of stay after transplant was comparable. Conclusions OCS allowed utilization of donors from extended distances that otherwise would not be considered because ischemic time would be prohibitive by conventional technique.
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Tanem JM, Scott JP, Hoffman GM, Niebler RA, Tomita-Mitchell A, Stamm KD, Liang HL, North PE, Bertrandt RA, Woods RK, Hraska V, Mitchell ME. Nuclear Cell-Free DNA Predicts Adverse Events After Pediatric Cardiothoracic Surgery. Ann Thorac Surg 2022:S0003-4975(22)01391-1. [PMID: 36332680 DOI: 10.1016/j.athoracsur.2022.10.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 09/15/2022] [Accepted: 10/17/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND Preoperative risk stratification in cardiac surgery includes patient and procedure factors that are used in clinical decision-making. Despite these tools, unidentified factors contribute to variation in outcomes. Identification of latent physiologic risk factors may strengthen predictive models. Nuclear cell-free DNA (ncfDNA) increases with tissue injury and drops to baseline levels rapidly. The goal of this investigation is to measure and to observe ncfDNA kinetics in children undergoing heart operations with cardiopulmonary bypass (CPB), linking biomarkers, organ dysfunction, and outcomes. METHODS This is a prospective observational study of 116 children <18 years and >3 kg undergoing operations with CPB. Plasma ncfDNA samples were collected and processed in a stepwise manner at predefined perioperative time points. The primary outcome measure was occurrence of postoperative cardiac arrest or extracorporeal membrane oxygenation. RESULTS Data were available in 116 patients (median age, 0.9 years [range, 0-17.4 years]; median weight, 7.8 kg [range, 3.2-98 kg]). The primary outcome was met in 6 of 116 (5.2%). Risk of primary outcome was 2% with ncfDNA <20 ng/mL and 33% with ncfDNA >20 ng/mL (odds ratio, 25; CI, 3.96-158; P = .001). Elevated ncfDNA was associated with fewer hospital-free days (P < .01). CONCLUSIONS This study analyzes ncfDNA kinetics in children undergoing operations with CPB for congenital heart disease. Elevated preoperative ncfDNA is strongly associated with postoperative arrest and extracorporeal membrane oxygenation. Further studies are needed to validate this technology as a tool to predict morbidity in children after cardiac surgical procedures.
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Affiliation(s)
- Justinn M Tanem
- Division of Pediatric Anesthesiology, Department of Anesthesiology, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin; Division of Pediatric Critical Care Medicine, Department of Pediatrics, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - John P Scott
- Division of Pediatric Anesthesiology, Department of Anesthesiology, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin; Division of Pediatric Critical Care Medicine, Department of Pediatrics, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - George M Hoffman
- Division of Pediatric Anesthesiology, Department of Anesthesiology, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin; Division of Pediatric Critical Care Medicine, Department of Pediatrics, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Robert A Niebler
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Aoy Tomita-Mitchell
- Division of Pediatric Cardiothoracic Surgery, Department of Cardiothoracic Surgery, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Karl D Stamm
- Division of Pediatric Cardiothoracic Surgery, Department of Cardiothoracic Surgery, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Huan-Ling Liang
- Division of Pediatric Cardiothoracic Surgery, Department of Cardiothoracic Surgery, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Paula E North
- Division of Pediatric Pathology, Department of Pathology, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Rebecca A Bertrandt
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Ronald K Woods
- Division of Pediatric Cardiothoracic Surgery, Department of Cardiothoracic Surgery, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Viktor Hraska
- Division of Pediatric Cardiothoracic Surgery, Department of Cardiothoracic Surgery, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Michael E Mitchell
- Division of Pediatric Cardiothoracic Surgery, Department of Cardiothoracic Surgery, Herma Heart Institute, Children's Wisconsin, Medical College of Wisconsin, Milwaukee, Wisconsin.
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Smith DE, Kon ZN, Carillo JA, Chen S, Gidea CG, Piper GL, Reyentovich A, Montgomery RA, Galloway AC, Moazami N. Early experience with donation after circulatory death heart transplantation using normothermic regional perfusion in the United States. J Thorac Cardiovasc Surg 2021; 164:557-568.e1. [PMID: 34728084 DOI: 10.1016/j.jtcvs.2021.07.059] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/05/2021] [Accepted: 07/15/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVE This pilot study sought to evaluate the feasibility of our donation after circulatory death (DCD) heart transplantation protocol using cardiopulmonary bypass (CPB) for normothermic regional reperfusion (NRP). METHODS Suitable local DCD candidates were transferred to our institution. Life support was withdrawn in the operating room (OR). On declaration of circulatory death, sternotomy was performed, and the aortic arch vessels were ligated. CPB was initiated with left ventricular venting. The heart was reperfused, with correction of any metabolic abnormalities. CPB was weaned, and cardiac function was assessed at 30-minute intervals. If accepted, the heart was procured with cold preservation and transplanted into recipients in a nearby OR. RESULTS Between January 2020 and January 2021, a total of 8 DCD heart transplants were performed: 6 isolated hearts, 1 heart-lung, and 1 combined heart and kidney. All donor hearts were successfully resuscitated and weaned from CPB without inotropic support. Average lactate and potassium levels decreased from 9.39 ± 1.47 mmol/L to 7.20 ± 0.13 mmol/L and 7.49 ± 1.32 mmol/L to 4.36 ± 0.67 mmol/L, respectively. Post-transplantation, the heart-lung transplant recipient required venoarterial extracorporeal membrane oxygenation for primary lung graft dysfunction but was decannulated on postoperative day 3 and recovered uneventfully. All other recipients required minimal inotropic support without mechanical circulatory support. Survival was 100% with a median follow-up of 304 days (interquartile range, 105-371 days). CONCLUSIONS DCD heart transplantation outcomes have been excellent. Our DCD protocol is adoptable for more widespread use and will increase donor heart availability in the United States.
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Affiliation(s)
- Deane E Smith
- Department of Cardiothoracic Surgery, New York University Langone Health, New York, NY.
| | - Zachary N Kon
- Department of Cardiovascular and Thoracic Surgery, North Shore University Hospital, Northwell Health, Manhasset, NY
| | - Julius A Carillo
- Department of Cardiothoracic Surgery, New York University Langone Health, New York, NY
| | - Stacey Chen
- Department of Cardiothoracic Surgery, New York University Langone Health, New York, NY
| | - Claudia G Gidea
- Division of Cardiology, New York University Langone Health, New York, NY
| | - Greta L Piper
- Department of Surgery, New York University Langone Health, New York, NY
| | - Alex Reyentovich
- Division of Cardiology, New York University Langone Health, New York, NY
| | - Robert A Montgomery
- Department of Surgery, New York University Langone Health, New York, NY; Transplant Institute, New York University Langone Health, New York, NY
| | - Aubrey C Galloway
- Department of Cardiothoracic Surgery, New York University Langone Health, New York, NY
| | - Nader Moazami
- Department of Cardiothoracic Surgery, New York University Langone Health, New York, NY
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