Effect of Oesophageal Acid Instillation on Coronary Blood Flow

Overview

Journal Lancet

Publisher Elsevier

Specialty General Medicine

Date 1993 May 22

PMID 8098450

Citations 17

Authors

A Chauhan

M C Petch

P M Schofield

Affiliations

Soon will be listed here.

Abstract

To assess whether gastrointestinal factors can cause chest pain ("linked angina"), we studied the effect of oesophageal stimulation with acid on coronary blood flow in 20 syndrome X patients. Coronary blood flow velocity (CBFV) was measured with an intracoronary doppler catheter positioned in the proximal left anterior descending coronary artery. Acid stimulation produced typical anginal pain in 11 patients. Mean CBFV was significantly reduced from 7.3 (SD 4.0) to 4.4 (2.8) cm/s. Gastro-oesophageal reflux leading to reduced coronary blood flow may be a mechanism to explain linked angina.

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