ABSTRACT
The results of a 10-year experience in surgical treatment of supraventricular tachyarrhythmias in 258 patients are analysed. Invasive and noninvasive methods of electrophysiological studies with the predominant use of Soviet-produced apparatuses were employed in establishing the diagnosis. Surgery of arrhythmias included catheter destruction, cryosurgery on a working heart, but the prevailing methods were various types of destruction of anomalous conducting paths under conditions of extracorporeal circulation. The authors suggest a method for dosed electrocoagulation of paranodal tissues in atrioventricular nodal tachycardias. The results of the operation were positive in over 90% of cases. Three fatal outcomes in operations with extracorporeal circulation occurred during the first years of accumulation of experience in the method. It is concluded that the operation is highly effective in severe tachyarrhythmias.
Subject(s)
Cryosurgery/methods , Electrocoagulation/methods , Tachycardia, Atrioventricular Nodal Reentry/surgery , Tachycardia, Ectopic Atrial/surgery , Adolescent , Adult , Aged , Child , Child, Preschool , Extracorporeal Circulation , Humans , Intraoperative Care , Middle Aged , Time FactorsABSTRACT
Five series of experiments were conducted on a model of hepatic insufficiency caused by obstructive jaundice to study the effect of semiconductor infrared laser in a range of 800-900 nm with a static magnetic field on some metabolic changes in the organism. Wistar rats weighing 200-250 g were used. The region of the liver was irradiated through an intact epilated skin. The results provide evidence that a definite role in the pathogenesis of hepatic insufficiency is played by intensification of LPO processes and diminution of antioxidant defence which leads, in turn, to reduction of the insulin-receptor interrelations and sharp decrease of hepatic cell metabolism.
