An 18-year-old girl with severe valvar pulmonary stenosis was subjected to balloon valvoplasty. During each inflation of the balloon, we observed transient electrocardiographic disappearance of 'R' waves in the monitoring lead. The possible explanations for this observation include sudden severe right ventricular strain and ischemia.
- Pulmonary valvoplasty
- Right ventricular strain
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine