Immediate and early post-operative sequelae of off-pump total cavopulmonary connection

Extracardiac Fontan (ECF) is currently the final operation of choice for patients with a univentricular heart. Performing this procedure without cardiopulmonary bypass (CPB) carries potential benefits. In this study, we report the early results of ECF without CPB.

Between 2012 and 2015, 72 consecutive patients underwent Fontan without CPB. Their medical records were examined in detail.

Mean age was 11.8 ± 5.2 (range 5 to 23, median 10) years. Intraoperative mean superior vena cava clamp time was 15.19 ± 3.8 min, and the inferior vena cava clamp time was 16.93 ± 3.31 min. There were three early deaths. No patient required conversion from off-CPB to CPB. Mean inotropic score was 4.73 ± 5.9 (range 0 to 25, median 2.5). Mean time to extubation was 9.5 ± 5.82 (range 3 to 29, median 8) hours. Pleural drainage in intensive care unit (ICU) was 551.57 ± 452.77 (median 470) ml, and mean ICU stay was 2.27 ± 3.09 (median 1.5) days. Mean daily pleural drainage after discharge from the ICU was 163.7 ± 88.01 (median 140) ml, and mean time to removal of pleural tubes was 15.76 ± 8.4 (median 14) days. Total hospital stay was 17.03 ± 8.62 (median 15) days. At an early follow-up of 2-40 (median 25) months, all survivors (n = 69) had a patent Fontan circuit with normal ventricular function on echocardiography. There were no late deaths or thromboembolic complications.

Off-pump ECF is a low-risk procedure that avoids the harmful effects of CPB. Post-operative course of these patients is predictable with substantial savings in costs.