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KMID : 0377619740260010084
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Korean Jungang Medical Journal
1974 Volume.26 No. 1 p.84 ~ p.92
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Clinical Studies of the Arrhythmias
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李醇熙/Lee, Shoon Hie
金和淑/金洋一/李學重/Kim, Wha Sook/Kim, Yang Il/Lee, Hack Choong
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Abstract
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Statistical studies were made on the arrhythrnias found in 1,763 electrocardiographic tracings taken at the National Medical Center from January to October 1973. The results were as follows:
1) The over-all incidence of various arrhythmias was 33.02 per cent which consisted of disturbance in impulse formation 26.21 per cent and conduction disturbance 6.81 per cent. The frequent arrhythmia was abnormality oftsinus rhythm 13.96 per cent.
2) The incidences of arrhythmias except for sinus rhythm abnormalities were auricular fibrillation 5.84 per cent, ventricular pre-:nature beat 4.42 per cent, right bundle branch block 2.72 per cent, atrial premature beat 0. 91 per cent, left anterior hemiblock 0. 91 percent, idionodal rhythm 0.51 percent, left bundle branch block 0.45 percent, intraventricular conduction defect 0.45 per cent, nodal escaped beat 0. 17 per cent, second degree A-V block 0. 17 per cent, S-A block 0. 17 per cent, supraventricular tachycardia 0. 11 per cent, third degree A-V block 0. 11 per cent, A-V dissociation 0. 11 per cent, aberrant conjunction 0. 11 per cent, W-P-W syndrome 0. 11 per cent, nodal premature beat 0.03 per cent and ventricular tachycardia 0. 06 per cent of the 1, 763 tracings.
3) Arrhythmias were found in 75 percent of 45 patients with coronary heart disease, 68.85 per cent of 108 with valvular heart disease, 46.15 per cent of 13 with pericarditis, 33.33 per cent of 15 with corpulmonale, 27.42 per cent of 197 with hypertension or hypertensive heart disease and 25 Per-,Cent of 24 with congenital heart disease.
An 47.45 per cent incidence of arrhythmip in the cardiovasculr disease group, 7.93 per cent in the non-cardiovascular group and 6.32 per cent in apparently healthy group were observed. The most frequent underlying disease of arrhythmias
-in the non-cardiovascular group was renal disease (12.15 per cent incidence).
4). Cardiovascular diseases were ,observed 4n 74.75 per cent of all patients with auricular fibrillation and non-cardiovascular diseases in 25.25, percent. Mitral valvular disease was seen in 65.9 per cent of patients with auricular fibrillation which was cause by organic heart diseases.
5) Left anterior hemiblock occurred most frequently after 40 years of age (in 12 of 16 cases). The most common causes of the hemiblock were myocardial infarction and coronary heart disease after 40 and mitral valvular disease before 40 years of age.
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