がい収縮 しゅうしゅく せい不整 ふせい みゃくでした
kigaishūshuku sei fuseimyakudeshita

Noun
Desu Copula

The polite past form of 期外収縮性不整脈

1. Premature ventricular contraction was present.; It was a premature ventricular contraction.

Past/Perfective
Polite