Kardiologiya
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The effectiveness and electrophysiologic mechanisms of antiarrhythmic effect of digoxin were examined in 27 patients with paroxysmal atrioventricular nodal reciprocal tachycardia (PAVNRT) and supraventricular tachycardia (SVT) due to latent complementary conductive pathways, i. e. latent Wolff-Parkinson-White (WPW) syndrome. To assess antiarrhythmic action of digoxin, transesophageal pacing and plasma digoxin radioimmonoassays were used. ⋯ Antegrade atrioventricular conduction block seems to be the mechanism of oral digoxin preventive effect. There was no relationship between antiarrhythmic efficiency of digoxin and its plasma level.
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Comparative Study
[Factors affecting the immediate results of aortocoronary shunting].
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A follow-up study of 444 patients with artificial heart valves of different makes demonstrated increased wear and thrombogenic properties of the hemispheric MKC-27 prosthesis, used in mitral position, over 5 years of follow-up. High risk of thrombo-embolic complications is related to interrupted anticoagulant treatment. Their rate could be reduced through improving the quality of anticoagulant treatment, i.e. continuous administration of anticoagulants under adequate monitoring.