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[Interatrial electromechanic resynchronization by dual atrial pacing in the prevention of paroxysmal atrial fibrillation --report of a case].
Rev Port Cardiol
December 2000
Unidade do Pacing do Serviço de Cardiologia, Hospital Pulido Valente, Lisboa.
We presented the case of a 78 year old woman who five years ago underwent myectomic surgery, and aortic valvular replacement, for obstructive cardiomyopathy and valvular aortic stenosis. After surgery, the aortic transvalvular gradient was insignificant (20 mm/Hg). In spite of this she suffers from frequent AF crises, (3 times a month), with a cardiac frequency of 140-150/min.
View Article and Find Full Text PDFDespite some limitations of the echocardiographic estimation of ventricular volume, previous studies have proved its utility in clinical practice. Assuming that the variation of ventricular volume during atrial contraction represents the atrial output, we have tried to study atrial function, its variations and its contribution to ventricular function in physiological states. For this purpose, an echocardiogram of good quality was recorded in 60 normal African subjects, mean age: 26.
View Article and Find Full Text PDFA PHYSIOLOGICO-PATHOLOGICAL STUDY OF A CASE OF HEART-BLOCK OCCURRING IN A DOG AS A RESULT OF NATURAL CAUSES.
J Exp Med
July 1912
Laboratory of Physiology, Atlanta College of Physicians and Surgeons, Atlanta, Ga.
What is believed to be the first known case of heart-block arising in a dog as a result of an ingenerate pathological lesion is here reported. The auriculo-ventricular dissociation was of that degree known as relatively complete block and became apparent on section of the right vagus nerve. Stimulation of the peripheral end of the cut vagus failed to inhibit the ventricles, although complete inhibition of the auricles occurred.
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