The Termination of Cardiac Arrythmias by Direct Current Shock

The Termination of Cardiac Arrythmias by Direct Current Shock.

THE use of DC, shock in the treatment of cardiac arrhythmias has been pioneered by Lown and his associates 1(1962). We are reporting our first 100 patients treated by this method. For those unfamiliar with this technique a short historical and technical introduction is appended. Introduction In 1899 Prevost and Batelli showed that the passage of a small current through the heart muscle (shock) ...

Direct-current Shock in Treatment of Drug-resistant Cardiac Arrhythmias.

ment of ventricular fibrillation at the time of cardiac operations, and has proved successful at other times (McDonald et al., 1963). Lown et al. (1962b) have described the use of directcurrent shock both experimentally and in the treatment of patients with atrial and ventricular arrhythmias (Lown et al., 1962a). The use of direct current enables the shock to be applied at a precise moment in t...

Shock-induced termination of cardiac arrhythmias

control of the optical properties of nanoparticles by laser fields

در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...

Conversion of Atrial Fibrillation by Direct Current Counter Shock.

The adverse effects of atrial fibrillation on the circulation are well known. It reduces cardiac output and stroke volume (Kory and Meneely, 1951; Broch and Muller, 1957), may lead to cardiac dilatation and failure (Phillips and Levine, 1949), and is associated with a high risk of systemic embolization (Sokolow, 1951; Fraser and Turner, 1955). Unfortunately, attempts to restore sinus rhythm wit...