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. 1999 Jul;82(1):89–92. doi: 10.1136/hrt.82.1.89

Spinal cord stimulation significantly decreases the need for acute hospital admission for chest pain in patients with refractory angina pectoris

S Murray 1, K Carson 1, P Ewings 1, P Collins 1, M James 1
PMCID: PMC1729095  PMID: 10377316

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.


Keywords: spinal cord stimulation; refractory angina pectoris; admission rate; cost effectiveness

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Selected References

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