Kaustav Majumder1, John R Spratt1, Christopher T Holley1, Samit S Roy2, Rebecca J Cogswell2, Kenneth Liao3, Ranjit John4. 1. Department of Surgery, University of Minnesota, Minneapolis, Minnesota. 2. Cardiovascular Division, Department of Medicine, University of Minnesota, Minneapolis, Minnesota. 3. Division of Cardiothoracic Surgery, Department of Surgery, University of Minnesota, Minneapolis, Minnesota. 4. Division of Cardiothoracic Surgery, Department of Surgery, University of Minnesota, Minneapolis, Minnesota. Electronic address: johnx008@umn.edu.
Abstract
BACKGROUND: Liver dysfunction in left ventricular assist device (LVAD) recipients is common both before and after implantation. Postoperative liver dysfunction (PLD) develops in some LVAD recipients without preoperative liver dysfunction. The aim of this study was to assess clinical outcomes in such patients. METHODS: Records of all patients undergoing implantation of a HeartMate II (HM II, St. Jude Medical, Inc, Minneapolis, MN) LVAD at a single center at the University of Minnesota from January 2005 through June 2014 were analyzed. PLD was defined by hypertransaminasemia or hyperbilirubinemia, or both, during the hospitalization for LVAD implantation. RESULTS: During the study period, 284 patients underwent HM II implantation. Excluded from analysis were 14 recipients with preoperative liver dysfunction. In the final cohort (n = 270), there were no major difference in preoperative characteristics among those patients with versus without PLD. PLD developed in 129 (47.8%) recipients: 16 (12.4%) had isolated hypertransaminasemia (group I), 76 (58.9%) had isolated hyperbilirubinemia (group II), and 37 (28.7%) had combined hypertransaminasemia and hyperbilirubinemia (group III). Group III LVAD recipients had significantly greater rates of 30-day, 90-day, and 1-year mortality, along with significantly higher transfusion requirements and higher rates of renal replacement therapy, prolonged ventilation, and vasopressor use. Moreover, their mortality risk was significantly higher than that of PLD-free LVAD recipients (hazard ratio, 4.6; 95% confidence interval, 2.1 to 10.1; p < 0.001). CONCLUSIONS: Isolated hyperbilirubinemia is common after LVAD implantation. In this study, it was not associated with an increase in early or midterm postoperative mortality. However, postoperative combined transaminasemia and hyperbilirubinemia was associated with a significant increase in early and midterm morbidity and mortality. Further research into the pathogenesis of post-LVAD PLD is necessary.
BACKGROUND:Liver dysfunction in left ventricular assist device (LVAD) recipients is common both before and after implantation. Postoperative liver dysfunction (PLD) develops in some LVAD recipients without preoperative liver dysfunction. The aim of this study was to assess clinical outcomes in such patients. METHODS: Records of all patients undergoing implantation of a HeartMate II (HM II, St. Jude Medical, Inc, Minneapolis, MN) LVAD at a single center at the University of Minnesota from January 2005 through June 2014 were analyzed. PLD was defined by hypertransaminasemia or hyperbilirubinemia, or both, during the hospitalization for LVAD implantation. RESULTS: During the study period, 284 patients underwent HM II implantation. Excluded from analysis were 14 recipients with preoperative liver dysfunction. In the final cohort (n = 270), there were no major difference in preoperative characteristics among those patients with versus without PLD. PLD developed in 129 (47.8%) recipients: 16 (12.4%) had isolated hypertransaminasemia (group I), 76 (58.9%) had isolated hyperbilirubinemia (group II), and 37 (28.7%) had combined hypertransaminasemia and hyperbilirubinemia (group III). Group III LVAD recipients had significantly greater rates of 30-day, 90-day, and 1-year mortality, along with significantly higher transfusion requirements and higher rates of renal replacement therapy, prolonged ventilation, and vasopressor use. Moreover, their mortality risk was significantly higher than that of PLD-free LVAD recipients (hazard ratio, 4.6; 95% confidence interval, 2.1 to 10.1; p < 0.001). CONCLUSIONS: Isolated hyperbilirubinemia is common after LVAD implantation. In this study, it was not associated with an increase in early or midterm postoperative mortality. However, postoperative combined transaminasemia and hyperbilirubinemia was associated with a significant increase in early and midterm morbidity and mortality. Further research into the pathogenesis of post-LVAD PLD is necessary.
Authors: Finn Gustafsson; Binyamin Ben Avraham; Ovidiu Chioncel; Tal Hasin; Avishai Grupper; Aviv Shaul; Sanemn Nalbantgil; Yoav Hammer; Wilfried Mullens; Laurens F Tops; Jeremy Elliston; Steven Tsui; Davor Milicic; Johann Altenberger; Miriam Abuhazira; Stephan Winnik; Jacob Lavee; Massimo Francesco Piepoli; Lorrena Hill; Righab Hamdan; Arjang Ruhparwar; Stefan Anker; Marisa Generosa Crespo-Leiro; Andrew J S Coats; Gerasimos Filippatos; Marco Metra; Giuseppe Rosano; Petar Seferovic; Frank Ruschitzka; Stamatis Adamopoulos; Yaron Barac; Nicolaas De Jonge; Maria Frigerio; Eva Goncalvesova; Israel Gotsman; Osnat Itzhaki Ben Zadok; Piotr Ponikowski; Luciano Potena; Arsen Ristic; Tiny Jaarsma; Tuvia Ben Gal Journal: ESC Heart Fail Date: 2021-09-28
Authors: Yaron D Barac; Ronen Toledano; Oliver K Jawitz; Jacob N Schroder; Mani A Daneshmand; Chetan B Patel; Dan Aravot; Carmelo A Milano Journal: JTCVS Open Date: 2022-01-22