Electrocardiogram (ECG) success in coronary spasm diagnosis:
This article was originally published in Clinica
Japanese researchers have shown that an electrocardiogram taken during patient hyperventilation is a good indicator of coronary artery spasm. Of 206 patients known to have the spasm, 62% showed positive - with sensitivity up to 84% for more severe cases. All 183 angina patients known not to have spasms tested negative. (The American Journal of Cardiology Vol 80, p 545). The test could replace the usual diagnostic method of provoking spasms with drugs.