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The Journal of Cardiovascular Surgery 2021 Mar 10

DOI: 10.23736/S0021-9509.21.11583-6

Copyright © 2021 EDIZIONI MINERVA MEDICA

lingua: Inglese

Risk factors and outcomes of prolonged cardiopulmonary bypass time in surgery for adult congenital heart disease: a single-center study from a low-middle-income country

Russell S. MARTINS 1, Ronika D. UKRANI 1, Muhammad K. MEMON 2, Waris AHMAD 3, Saleem AKHTAR 4

1 Medical College, Aga Khan University Hospital, Karachi, Pakistan; 2 Department of Pediatrics, Liaquat National Hospital & Medical College, Karachi, Pakistan; 3 Department of Surgery, Aga Khan University Hospital, Karachi, Pakistan; 4 Department of Pediatrics and Child Health, Aga Khan University Hospital, Karachi, Pakistan


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BACKGROUND: Prolonged cardiopulmonary bypass time (prolonged CPBT; PCPBT) during operations for adult congenital heart disease (ACHD) may lead to worse postoperative outcomes, which could add a significant burden to hospitals in developing countries. This study aimed to identify risk factors and outcomes of PCPBT in patients undergoing operations for ACHD.
METHODS: This retrospective study included all adult patients (⩾18 years) who underwent cardiac surgery with cardiopulmonary bypass for their congenital heart defect from 2011-2016 at a tertiarycare private hospital in Pakistan. Prolonged CPBT was defined as CPBT > 120 minutes (65th percentile).
RESULTS: This study included 166 patients (53.6% males) with a mean age of 32.05 ± 12.11 years. Comorbid disease was present in 59.0% of patients. Most patients underwent atrial septal defect repair (42.2%). A total of 58 (34.9%) of patients had a PCPBT. Postoperative complications occurred in 38.6% of patients. Multivariable analysis adjusted for age, gender and RACHS-1 Categories showed that mild preoperative left ventricular (LV) dysfunction was associated with PCPBT (OR: 3.137 [95% CI: 1.003-9.818]), while obesity was found to be protective (0.346 [0.130-0.923]). PCPBT was also associated with a longer duration of ventilation (1.298 [1.005-1.676]), longer cardiac ICU stay (1.204 [1.061-1.367]) and longer hospital stay (1.120 [1.005-1.247]).
CONCLUSIONS: While mild preoperative LV dysfunction was associated with PCPBT, obesity was found to be protective. Postoperatively, PCPBT was associated with longer duration of ventilation, cardiac ICU stay, and hospital stay. Operations with shorter CPBT may help minimize the occurrence and impact of these postoperative adverse outcomes especially in resource-constrained developing countries.


KEY WORDS: Cardiopulmonary bypass; Congenital heart defects; Developing country

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