Ventricular Fibrillation Studied by the Microelectrode Method

Ventricular fibrillation studied by the microelectrode method.

Capillary ultrainicroeleetrodes were inserted into ventriculaimuscle fibers of dogs in ventricular fibrillation nnd action potentials obtained were compared with deflection.? of unipolar direct lead, adjoining; bipolar direct lead or other electrocardiograms taken simultaneously. In most stages of ventricular fibrillation neither synchronism nor any other regular time relationship could be foun...

Ventricular fibrillation induced by xipamide.

Xipamide (Diurexan) and indapamide (Natrilix) have been introduced as new antihypertensive agents. They are marketed as being more effective than the thiazide diuretics but not as potent as beta-blockers. They are both thiazide-related, being chemically similar to chlorthalidone. It is claimed that they lower blood pressure without causing an appreciable diuresis, and that the incidence of hypo...

Ventricular Fibrillation Terminated by the Seventh Shock

A 49-year-old man consulted our department 3 months after having several implantable cardioverter-defibrillator (ICD) shocks with subsequent syncope. A CRT-D device (Boston Scientific, Cognis 100-D) and a single-element subcutaneous array (Medtronic, model 6996 SQ) had been implanted 2 years previously for primary prevention of sudden cardiac death caused by symptomatic (New York Heart Associat...

The Effects of Hypocalcemia on Spatial Alternans and Ventricular Fibrillation Studied with the Optical Mapping Technique

Hydrogen ion secretion by rat renal cortical tubules as studied by an antimony microelectrode.

VIEIRA, FRANCISCO LACAZ, AND GERHARD MALNIC Hydrogen ion secretion by rat renal cortical tubules as studied by an antimony microelectrode. Am. J. Physiol. 214(4) : 710-718. 1968.-The pH of proximal and distal tubular fluid of rats on a control diet and of similar rats submitted to 5Cr, NaHC03 or acetazolamide infusions was measured in situ by an antimony microelectrode. The preparation and stan...