Title :
Cardiac fibrillation and heart weight
Author :
Ruiz, Estela ; Valentinuzzi, Max E.
Author_Institution :
Laboratorio de Bioingeniería, Facultad de Ciencias Exactas y Tecnología, Universidad Nacional de Tucumán, cc 28, sue 2, 4000 Tucumân, Argentina
fDate :
Oct. 29 1992-Nov. 1 1992
Abstract :
The existence of a minimal mass of tissue is an essential condition to trigger fibrillation. We asked whether the current required to induce fibrillation of this Mass is the saae as that required for larger masses. Fibrillation thresholds were determined in canine and feline ventricles of a wide range of sizes (1.7–102g) by using combinations of electrode leads and stimili directly applied to the myocardium. No significant differences were found among values nor definite trends could be observed when plotting stimulus amplitude as a function of ventricular weight. It was concluded that heart weight did not affect the fibrillation threshold.
Keywords :
Cardiology; Fibrillation; Gallium; Heart; Media; Synchronization;
Conference_Titel :
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location :
Paris, France
Print_ISBN :
0-7803-0785-2
Electronic_ISBN :
0-7803-0816-6
DOI :
10.1109/IEMBS.1992.5761245