[One-and-a-half correction. Results at the National Institute of Cardiology "Ignacio Chávez"]. / Corrección uno y medio. Resultados en el Instituto Nacional de Cardiología "Ignacio Chávez".

Herein we describe a preliminary report of 4 patients with hypoplastic right ventricle and 3 patients with Ebstein's anomaly who undergone "one and a half" repair at the Instituto Nacional de Cardiología "Ignacio Chávez". There was not surgical mortality and at mid-term follow up the patients are doing well.