5th July 2026

A 49-year-old woman undergoes septal myectomy for severe symptomatic HCM with left ventricular outflow tract obstruction.

A 49-year-old woman undergoes septal myectomy for severe symptomatic HCM with left ventricular outflow tract obstruction. Following surgery, she develops an irregular heartbeat, and an ECG confirms atrial fibrillation. Her doctor explains that this is a recognised complication of the procedure. Which of the following complications is most commonly associated with septal myectomy for obstructive HCM?

Select the SINGLE most appropriate option from the list below. Select ONE option only.