がい収縮 しゅうしゅく せい不整 ふせい みゃくじゃありませんでした
kigaishūshuku sei fuseimyakujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 期外収縮性不整脈

1. Was not premature ventricular contraction.; Was not a premature ventricular arrhythmia.

Past/Perfective
Negative
Polite
Terminal Form