[The importance of changes in the septal Q wave induced by exercise in the detection of ischemic heart disease].

Abstract:

:Among the numerous variables measured by the electrocardiogram during exercise little attention has been paid to the "septal" Q wave. We examined changes of the "septal" Q wave amplitude during exercise in 43 patients with chest pain. Coronary arteriography showed significant changes in 23 patients and normal arteries in 20. The Q wave amplitude was measured in leads V4-V6 immediately before and at the peak of submaximal bicycle exercise. The amplitude of "septal" Q wave increased during exercise in 11 (55%) patients, and decreased or was not changed in 9 (45%) of the normal subjects (p greater than 0.05). However, the Q wave amplitude increased in 6 (26%) patients, and decreased or was not changed in 17 (74%) patients with ischaemic heart disease (p less than 0.05). Thus, the sensitivity of Q wave analysis in the detection of coronary disease was 74% (p less than 0.05), but specificity was only 55% (p greater than 0.05).

journal_name

Srp Arh Celok Lek

authors

Rakocević V,Marić G,Stojanović G

keywords:

subject

Has Abstract

pub_date

1992-01-01 00:00:00

pages

48-50

issue

1-2

eissn

0370-8179

issn

2406-0895

journal_volume

120

pub_type

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