منابع مشابه
Burst stimulation improves hemodynamics during resuscitation after prolonged ventricular fibrillation.
BACKGROUND Although return of spontaneous circulation (ROSC) is frequently achieved during resuscitation for sudden cardiac arrest, systolic blood pressure can then decrease, requiring additional myocardial support. Previous studies have shown that a series of 1-ms electrical pulses delivered through the defibrillation patches during ventricular fibrillation (VF) can stimulate the autonomic ner...
متن کاملProlonged Atrio-Ventricular Block Following Scorpion Bite: A Case Report
This report describes a 55-year-old woman in whom yellow scorpion sting resulted in the development of Mobitz type 1 and transient complete heart blocks unresponsive to atropine administration. It might be concluded that although autonomic involvement including parasympathetic overactivity is present in such cases, other factors such as toxic damage to the cardiac conduction system may play a ...
متن کاملHis Bundle Activates Faster than Ventricular Myocardium during Prolonged Ventricular Fibrillation
BACKGROUND The Purkinje fiber system has recently been implicated as an important driver of the rapid activation rate during long duration ventricular fibrillation (VF>2 minutes). The goal of this study is to determine whether this activity propagates to or occurs in the proximal specialized conduction system during VF as well. METHODS AND RESULTS An 8×8 array with 300 µm spaced electrodes wa...
متن کاملVentricular Fibrillation
The cellular events during the initiation and maintenance of ventricular fibrillation (VF) are poorly understood. We developed a nonischemic, isolated, perfused rabbit Langendorff preparation in which sustained VF could be induced by alternating current (AC) and which allowed changes in perfusate composition. We also used Na+-K+ pump inhibition (10 ,uM ouabain or K'-free perfusate) to induce VF...
متن کاملExtremely Prolonged Ventricular Asystole
We are reporting an extremely prolonged sinus arrest documented by Holter monitoring.
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 1959
ISSN: 0022-5223
DOI: 10.1016/s0022-5223(20)31859-6