منابع مشابه
Pacemaker Failure following External Defibrillation
Schematic diagram of an alternate possible mechanism in the Lown-Ganong-Levine syndrome. The impulse from the sinoatrial node (SAN) arrives either via the posterior internodal tract (PIT) or the normal tract to the atrioventricular node (AVN) at a His-Purkinje junction (LAMBDA) distal to the recording site of the His electrode. Retrograde depolarization of the proximal, and antegrade depolariza...
متن کاملPacemaker failure following external defibrillation.
T HE ENCLOSED tracings were recorded from a patient with transvenous Medtronic Demand Pacemaker Model 5841 no. 9K00824 after d-c shocks at 400 w-sec administered for ventricular fibrillation. The beginning of ventricular fibrillation is shown on strip A. The first and second d-c shocks did not abolish the fibrillation. The third d-c shock transiently abolished ventricular fibrillation, and irre...
متن کاملAdditional coronary sinus shocking lead as rescue therapy after multiple internal and external defibrillation failures
High defibrillation threshold (DFT) and defibrillation failure can lead to intractable ventricular arrhythmias. Additional coronary sinus coil is an effective strategy to achieve marked reduction in DFT. However, physicians should retain this might prevent future coronary sinus lead placement in case the patient would develop complete left bundle branch block.
متن کاملExternal DC defibrillation during open heart surgery.
p s {}:^, CLINICAL STUDY Eighty-six consecutive prosthetic valve replacements were studied. Cardiopulmonary bypass was established in each with disc or bubble oxygenators, reducing the temperature of the patient to 300 C. The aorta was clamped in each case, coronary perfusion being carried out for 3 minutes at the end of each 10-minute interval by release of the aortic clamp, except when the ao...
متن کاملLocally propagated activation immediately after internal defibrillation.
BACKGROUND Electrical mapping studies indicate an interval of 40 to 100 ms between a defibrillation shock and the earliest activation that propagates globally over the ventricles (globally propagated activation, GPA). This study determined whether activation occurs during this interval but propagates only locally before being blocked (locally propagated activation, LPA). METHODS AND RESULTS I...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 1971
ISSN: 0022-5223
DOI: 10.1016/s0022-5223(19)42112-0