The surgical result of the double outlet right ventricle with obstruction of right ventricular outlet

Abstract

Objective To summarize the early surgical result of the double outlet right ventricle (DORV) with obstruction of right ventricular outlet (RVOTO). Methods From January 2009 to July 2015, 66 cases of DORV with RVOTO received the surgical treatment, including 55 cases of biventricular repair, 5 cases of Blalock-Taussing (BT) shunt, 2 cases of Glenn shunts, and 4 cases of Fontan procedure. Results The Total mortality rate was 10.6% and 9.1%, and patients were died after the biventricular repair. The average duration of ventilation was (54.94±70.07)h, and the average residence time of intensive care unit (ICU) was (5.23±5.65)d. According to the RVOT pressure, 49 survival patients receiving biventricle repair were divided into three groups. The ventilation and ICU stay time was much longer in the >40 mmHg group (P<0.01). The main causes of death were low heart row syndrome, valvular regurgitation, third degree conduction block, and coronary anomalous origin. Conclusions Biventricular repair of the DORV with RVOTO can achieve good results. The complete atrioventricular septal defects (CAVSD) may increase the mortality of the patients with this kind of operation for a severe left ventricular outflow tract obstruction. Key words: Tetralogy of fallot/SU; Double outlet right ventricle/SU; Follow-up studies