10th May 2025

Mrs Baptise is a 56-year-old dental assistant who presents to A&E following a collapse at work.

Mrs Baptise is a 56-year-old dental assistant who presents to A&E following a collapse at work. On discussing her history she informs you over the last few months she has become increasingly dizzy and occasionally fainted, believing these were peri-menopausal symptoms. Her ECG is normal sinus rhythm and lying and standing blood pressure is normal, however, she is admitted for an inpatient transthoracic echocardiogram which shows a likely intracardiac mass.

Which component of Mahaim’s triad is primarily responsible for the development of syncope in patients with intracavity masses?

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