A 65-year-old man on ICU develops a new right bundle branch block (RBBB) and persistent sinus tachycardia after a central venous catheter is advanced ...

Question

A 65-year-old man on ICU develops a new right bundle branch block (RBBB) and persistent sinus tachycardia after a central venous catheter is advanced from the internal jugular vein. What is the most likely cause?

Accepted Answer

The CVC tip has been advanced too far and is impinging on the right ventricular outflow tract or tricuspid valve, causing mechanical irritation and bundle branch block

Answer

Myocardial infarction from air embolism

Answer

Spontaneous RBBB unrelated to the catheter

Answer

Electromagnetic interference from ICU equipment

Answer

Drug-induced conduction abnormality

uk-fficm MCQ (SBA): CVC Complication - RBBB

A 65-year-old man on ICU develops a new right bundle branch block (RBBB) and persistent sinus tachycardia after a central venous catheter is advanced from the internal jugular vein. What is the most likely cause?