Source: Annual Congress 2002 - Lung cancer: epidemiology and clinical characteristics

Abstract

The object of the study was to present the frequency of electrocardiographic (ECG) changes in patients with lung cancer. ECG recordings were analyzed in 60 patients. The group I consisting of 30 patients was with superior vena cava syndrome (SVCS), while group II was without SVCS. Patients with previously diagnosed heart condition were not included in the study. There was no significant difference among the studied groups in relation to sex and age. An average in group I was 54 years (22 males and 8 females), while it was 53 years (21 males and 9 females) in group II.
ECG abnormalities were recorded in 22 (73%) cases in group I and in 6 (30%) patients in group II (p<0.05). The following findings were found in group I: supraventricular extrasystoles (SVES) in 1 case (3%), ventricular extrasystole (VES) in 1 (3%), atrial fibrillation - 1 (3%), incomplete right bundle branch block (IRBBB) - 1 (3%), ST-T segment changes - 3 (10%), sinus tachycardia - 6 (20%), and lower voltage of QRS complex in 9 (30%) patients.
The results in group II were as follows: SVES - 1 (3%), sinus tachycardia - 1 (3%), IRBBB - 1 (3%), lower voltage of QRS complex - 1 (3%), and right bundle branch block (RBBB) in 2 (7%) patients.
There is a significant difference in frequency rate of ECG changes among studied groups of patients with bronchial cancers. ECG changes were noted in 3/4 of patients with SVCS. One third of these pts had ECG signs of heart affection. ECG is a simple technique and, along with positive clinical findings, it enables rapid and early detection of heart lesions in these patients.


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Citations should be made in the following way:
N. Vasic, R. Stevic, D. Jovanovic, D. Vasiljevic-Krusedolac, S. Djuric (Belgrade, Yugoslavia). Electrocardiographic (ECG) changes in patients with lung cancer. Eur Respir J 2002; 20: Suppl. 38, 582

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