Incidence and Predictors of Atrial Septal Defect after Percutaneous Transvenous Mitral Commissurotomy – A Transesophageal Echocardiographic Study of 209 Cases

Abstract

Incidence of residual atrial septal defect immediately following PTMC by TEE color flow Doppler imaging is 66.5%. Surrogate markers of elevated left atrial pressures do not determine the development of atrial septal defect after PTMC. The majority of the defects close spontaneously and a residual defect is observed in 8.7% patients at 6 months.