Phasic flow patterns of right versus left coronary arteries in patients undergoing clinical physiological assessment.

ABSTRACT:

Background

Coronary blood flow in humans is known to be predominantly diastolic. Small studies in animals and humans suggest that this is less pronounced or even reversed in the right coronary artery (RCA).

Aims

This study aimed to characterise the phasic patterns of coronary flow in the left versus right coronary arteries of patients undergoing invasive physiological assessment.

Methods

We analysed data from the Iberian-Dutch-English Collaborators (IDEAL) study. A total of 482 simultaneous pressure and flow measurements from 301 patients were included in our analysis.

Results

On average, coronary flow was higher in diastole both at rest and during hyperaemia in both the RCA and LCA (mean diastolic-to-systolic velocity ratio [DSVR] was, respectively, 1.85±0.70,

SUBMITTER: Seligman H 

PROVIDER: S-EPMC9724998 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature