Results 301 to 310 of about 186,524 (347)
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Classification of cardiac pacemakers

The Journal of Cardiovascular Nursing, 1991
Pacemaker codes were developed to describe cardiac pacemaker function. Familiarity with these codes is essential for nurses caring for the patient with a permanent pacemaker. The article addresses the classification code of the North American Society of Pacing and Electrophysiology and the British Pacing and Electrophysiology Group and its relationship
openaire   +3 more sources

The pacemaker sound

The American Journal of Medicine, 1970
Described here are seven cases of permanent transvenous pacemakers associated with a pacemaker click. The graphic findings and roentgenographic appearance of the catheter position are discussed. Although these cases appear to represent penetration at least of the right ventricular myocardium by the catheter tip, there was no evidence of pacemaker ...
Morton Korn   +3 more
openaire   +3 more sources

Autodiagnostic Pacemaker*

Pacing and Clinical Electrophysiology, 1979
Loss of normal pacemaker stimulation and for sensing functions requires prompt detection, automatic correction, and automatic and continuous “marking” of the intermittent failure, The autodiugnostic pacemaker (ADP) detects “failure to capture” (FC) by distinguishing, at its single stimulating and sensing electrode, between the normal biphasic cardiac ...
Auerbach Aa, Furman S
openaire   +3 more sources

Queer current and pacemaker: the hyperpolarization-activated cation current in neurons.

Annual Review of Physiology, 1996
The cation conductance activated upon hyperpolarization of the membrane beyond the resting value appears to represent an ubiquitous type of membrane channel.
H. Pape
semanticscholar   +1 more source

Pacemaker Use Following Heart Transplantation.

Ochsner Journal, 2017
BACKGROUND The incidence of permanent pacemaker implantation after orthotopic heart transplantation has been reported to be 2%-24%. Transplanted hearts usually exhibit sinus rhythm in the operating room following reperfusion, and most patients do not ...
H. Mallidi, Michael Bates
semanticscholar   +1 more source

Timing of human sleep: recovery process gated by a circadian pacemaker.

American Journal of Physiology, 1984
A model for the timing of human sleep is presented. It is based on a sleep-regulating variable (S)--possibly, but not necessarily, associated with a neurochemical substance--which increases during wakefulness and decreases during sleep.
S. Daan, D. Beersma, A. Borbély
semanticscholar   +1 more source

Pacemaker in a Centenarian

JAMA: The Journal of the American Medical Association, 1971
To the Editor.— A recent letter to the Editor from Colokathis et al reported implantation of a permanent cardiac pacemaker in a 92-year-old woman, following which the patient returned to normal activity. We share their opinion that gratifying results are obtainable in patients of advanced age, and that a "generation gap" in this direction need not ...
openaire   +3 more sources

Interference in Pacemakers

Pacing and Clinical Electrophysiology, 1984
We attempt here to outline the different sources of interference and the methods of interference detection and protection with their advantages and disadvantages. A proposal is made as to how a better interference suppression could be established. A comparison of 16 pacemakers from ten manufacturers tested with different interference sources revealed a
openaire   +3 more sources

Pacemakers and defibrillators

2005
Abstract Cardiac pacemakers and defibrillators are used to stimulate cardiac muscle directly. The pacemaker corrects for abnormalities in the heart rate (this can be fast or slow). Defibrillators are used to restore a fibrillating heart or tachycardia, to sinus rhythm.
Patrick Magee, Mark Tooley
openaire   +1 more source

Pacemakers

2012
Publisher Summary This chapter discusses the relevant physiology, history, and key features of implantable cardiac pacemakers. A pacemaker is an electrical stimulator that discharges electrical current within two or three cardiac chambers, as a treatment for a cardiac arrhythmia or heart failure.
openaire   +2 more sources

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