title: Retrieval of entrapped and knotted balloon-tipped catheters from the right heart.
mesh_terms: D000328:Adult; D000368:Aged; D006328:Cardiac Catheterization / Q000009:adverse effects* / Q000295:instrumentation; D005260:Female; D005547:Foreign Bodies; D006325:Heart Atria; D006801:Humans; D008991:Monitoring, Physiologic / Q000295:instrumentation