PMID: 517993Aug 1, 1979Paper

Tests for ischaemia and left ventricular function in young patients with effort-induced chest pain

Annals of Clinical Research
M Rajasalmi

Abstract

The type of angina pectoris was determined in 47 women and 27 men aged 40 or less who then underwent quantitative left cineventriculography, coronary arteriography and atrial pacing test with determination of lactate concentrations from arterial and coronary sinus blood samples. The 29/74 patients with atypical angina and no narrowings on coronary arteriography (Group I) gave no pathological atrial pacing tests but 9 had pathological lactate tests. Group II consisted of 27/74 patients with typical angina but normal coronary arteriography. In these the atrial pacing test was pathological in 20 and the lactate test in 11. Coronary narrowings of 50% or more were found in 18/74 patients (Group III), who all had pathological pacing tests but only 9 pathological lactate tests. No statistical differences could be elicited between diagnostic groups in the quantitative evaluation of left ventricular function and it could be regarded as normal in 42/74 patients. The left ventricular mass index exceeded the control level in 6 patients in Group I and in 10 patients in Group II who all had a net lactate production upon pacing. The end-diastolic volume index was above control level in 11 patients in Group II, in whom the ST depression in pac...Continue Reading

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