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, 82 (1), 89-92

Spinal Cord Stimulation Significantly Decreases the Need for Acute Hospital Admission for Chest Pain in Patients With Refractory Angina Pectoris

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Spinal Cord Stimulation Significantly Decreases the Need for Acute Hospital Admission for Chest Pain in Patients With Refractory Angina Pectoris

S Murray et al. Heart.

Abstract

Objective: To assess the impact of spinal cord stimulation (SCS) on the need for acute admissions for chest pain in patients with refractory angina pectoris.

Design: Retrospective analysis of case records.

Patients: 19 consecutive patients implanted for SCS between 1987 and 1997. All had three vessel coronary disease, and all were in New York Heart Association functional group III/IV.

Methods: Admission rates were calculated for three separate periods: (1) from initial presentation up until last revascularisation; (2) from last revascularisation until SCS implantation; (3) from SCS implantation until the study date. Post-revascularisation rates were then compared with post-SCS rates, without including admissions before revascularisation, as this would bias against revascularisation procedures.

Results: Annual admission rate after revascularisation was 0.97/patient/year, compared with 0.27 after SCS (p = 0.02). Mean time in hospital/patient/year after revascularisation was 8.3 days v 2.5 days after SCS (p = 0.04). No unexplained new ECG changes were observed during follow up and patients presented with unstable angina and acute myocardial infarction in the usual way.

Conclusions: SCS is effective in preventing hospital admissions in patients with refractory angina, without masking serious ischaemic symptoms or leading to silent infarction.

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