[Postischemic inverted T waves: does gradual regression indicate improved prognosis?].

Abstract:

:This study has followed up the natural history of postischemic inverted T waves and assessed the prognosis. 40 consecutive patients with unstable angina with postischemic precordial inverted T waves in the noninfarcted, previously ischemic area were followed during the persistence (negative T wave period) and after resolution of inverted T waves (positive T wave period). The outcome with frequencies of acute myocardial infarction, acute ischemic syndrome, angina pectoris, positive exercise test, silent myocardial ischemia, anterior wall motion abnormalities on echocardiogram, positive coronary arteriography were determined and compared in the negative versus positive T wave periods. Postischemic inverted T waves showed resolution within the postischemic 3-21 days (at a mean of 10.6 days) in 31 patients on medical treatment alone during the whole study period. Frequencies of parameters/patients determined in negative versus positive T wave periods are as follows: acute myocardial infarction: 5/40 versus 0/31 (non significant), acute ischemic syndrome: 25/40 versus 2/31 (p < 0.001), angina pectoris: 32/40 versus 11/31 (p < 0.001), positive treadmill exercise test: 14/16 versus 14/30 (p < 0.02), silent myocardial ischemia: 14/14 versus 16/31 (p < 0.01), hypokinesis 26/34 versus 4/24 (p < 0.001), positive coronary arteriography: 4/4 versus 11/11 (non significant). In most patients on medical treatment, the postischemic inverted T waves tend to resolve within 3 weeks. Attention has to be paid to the patients with postischemic inverted T waves during the negative T wave period: the high ischemic risk gradually decreases with resolution of negative T waves.

journal_name

Orv Hetil

journal_title

Orvosi hetilap

authors

Simon K,Turi T,Szabó P,Szelier A,Szépvölgyi A,Sereg M,Szatmáry L

subject

Has Abstract

pub_date

1993-12-05 00:00:00

pages

2697-702

issue

49

eissn

0030-6002

issn

1788-6120

journal_volume

134

pub_type

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