Unmasking the severity of aortic stenosis by pharmacological elimination of left ventricular outflow tract obstruction: a case report.

ABSTRACT:

Background

Left ventricular outflow tract (LVOT) obstruction may occur with aortic stenosis (AS). However, the severity of AS is difficult to determine in this condition because the dynamic pressure gradient in LVOT obstruction influences the blood flow across the aortic valve.

Case summary

A 74-year-old woman was referred to our hospital having complaints of exertional dyspnoea and chest pain. Transthoracic echocardiography demonstrated LVOT obstruction with peak pressure gradient of 93 mmHg and 'moderate' AS with 3.9 m/s peak velocity and mean pressure gradient of 26 mmHg. Coronary angiography did not indicate any significant coronary artery disease. The pressure gradients at LVOT and aortic valve were measured as 34 mmHg and 76 mmHg via a pressure wire-pullback analysis,

SUBMITTER: Harano Y 

PROVIDER: S-EPMC10023873 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature