Modulation of Parasystolic Activity by Nonparasystolic Beats GERARDO

نویسنده

  • GERARDO J. NAU
چکیده

34. Birkhead JS, Vaughan Williams EM: Dual effects of disopyramide on atrial and atrioventricular conduction and refractory periods. Br Heart J 39: 657, 1977 35. Desai JM, Scheinman M. Peters RW. O'Young J: Electrophysiological effects of disopyramide in patients with bundle branch block. Circulation 59: 215, 1979 36. LaBarre A, Strauss HC, Scheinman MM, Evans GT. Bashore T, Tiedeman JS, Wallace AG: Electrophysiologic effects of disopyramide phosphate on sinus node function in patients with sinus node dysfunction. Circulation 59: 226. 1979 37. Danilo PJ, Rosen MR: Cardiac effects of disopyramide. Am Heart J 92: 532, 1976 38. Denes P, Wu D, Amat-y-Leon F, Dhingra R. Bauernfeind R. Kehoe R, Rosen K: Determinants of atrioventricular reentrant paroxysmal tachycardia in patients with Wolff-Parkinson-White syndrome. Circulation 58: 415, 1978 39. Geddes JS: Wolff-Parkinson-White Syndrome. Circus movement tachycardia dependent on procainamide. Br Heart J 38: 332, 1976 40. Duncan T, Bashore TM, Gallagher JJ: Digitalis in the preexcitation syndrome. Analysis during atrial fibrillation. Circulation 56: 260. 1977 41. Zipes DP, Guam WE, Foster PR. Rosen K, Wu D, Amat-y-Leon F, Nobel RJ: Aprindine for treatment of supraventricular tachycardias. With particular application to Wolff-Parkinson-White syndrome. Am J Cardiol 40: 585. 1977 42. Wellens HJJ. Lie KI, Bar FW, Wesdorp JC, Dohmen HJ. Diuren DR, Durrer D: Effect of amiodarone in the Wolff-Parkinson-White syndrome. Am J Cardiol 38: 189, 1978

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Modulation of parasystolic activity by nonparasystolic beats.

We studied 12 patients with ventricular parasystole in whom pacemaker activity could be modulated by nonparasystolic beats (NPBs). In six patients (group 1) in whom the intrinsic parasystolic cycle length (XX interval) was obtained without interposed NPBs, we found that NPBs falling during the first half of the cycle prolonged the XRX interval (containing one NPB) and that NPBs falling during t...

متن کامل

Characteristics of ventricular extrasystoles and their prognostic importance: a reappraisal of their method of classification.

The concept of two different types of extrasystoles, parasystolic and coupled, depends upon two distinguishing characteristics of these beats. The characteristics of the parasystolic extrasystoles are the invariability of the ectopic cycle together with their independence from the basic rhythm. Coupled extrasystoles demonstrate a dependence upon the basic rhythm although they may express some d...

متن کامل

Effects of intervening sinus beats on ectopic cycle length in a patient with ventricular parasystole.

The intrinsic cycle length of the ventricular parasystolic pacemaker may be modulated by electrotonic influence of intervening ventricular depolarizations. In order to quantify the magnitude of modulation in relation to the timing of the intervening depolarization, a curve of influence was constructed in a patient with ventricular parasystole. The current communication deals with the detailed d...

متن کامل

Atrial parasystole and tachycardia. Modulation and automodulation of a parasystolic focus.

This report deals with a patient reflecting atrial parasystole and episodes of atrial tachycardia. The P' waves during tachycardia were identical to the parasystolic P' waves. Atrial parasystole was at times regular, as revealed by a precise mathematical relationship between the interectopic intervals, and on other occasions irregular. Irregularity was due to modulation, namely electrotonic inf...

متن کامل

His bundle parasystole: A form of A-V junctional parasystole.

A 69-year-old man demonstrated continuous A-V junc-tional parasystole (A V m) over a three-week observation period. The parasystolic cycle length, although constant during each recording, changed proportionately and in parallel with the sines cycle length. Carotid sines massage lengthened the cycle length. During later recordings , the parasystolic impdse became less effective and only appeared...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2005