Paradoxical sinus deceleration during dobutamine stress echocardiography: case series and review of the literature

ABSTRACT: Abstract

Background

Dobutamine stress echocardiography is an established diagnostic modality for assessing myocardial ischaemia in patients with known or suspected coronary artery disease. Dobutamine infusion causes dose-dependent increase in heart rate and contractility. However, in some cases, it induces paradoxical sinus deceleration, whose underlying mechanism and clinical significance are not fully understood.

Case summary

We present episodes of paradoxical sinus deceleration observed during dobutamine stress echocardiography in six (four males and two females) patients and described its patterns of occurrence and clinical and echocardiographic characteristics.

Discussion

Paradoxical sinus deceleration occurred mostly at maximal dobutamine infusion was accom

SUBMITTER:  

PROVIDER: S-EPMC9593066 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature