Dysphagia following transcatheter mitral valve-in-ring replacement complicated by neo-left ventricular outflow tract obstruction: a case report.

ABSTRACT:

Background

Neo-left ventricular outflow tract (LVOT) obstruction is a dreaded complication following transcatheter mitral valve replacement (TMVR). Dynamic LVOT obstruction has been reported to cause mechanical intravascular haemolysis due to red cell fragmentation. Intravascular haemolysis can result in a rare but well-described phenomenon in which patients experience dysphagia due to oesophageal spasm. This phenomenon is classically associated with paroxysmal nocturnal haemoglobinuria and has never been reported following TMVR.

Case summary

A 77-year-old female presented 8 days following TMVR with presyncope, dyspnoea, and severe dysphagia. Transthoracic echocardiography revealed neo-LVOT obstruction with trivial paravalvular mitral regurgitation. Doppler echocardiography

SUBMITTER: Sargent S 

PROVIDER: S-EPMC11971513 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature