Interpretation of cardiac pathophysiology from pressure waveform analysis: pacemaker hemodynamics.
The abnormal sequence of A-V contraction produces alteration of right and left heart hemodynamics reflecting the inappropriate timing of atrial contraction to ventricular filling. Some symptomatic patients may require A-V sequential pacing to improve cardiac output. The clinical effects of the atrial contribution to left ventricular function can be demonstrated by careful review of hemodynamic tracings in these individuals.
Kern
M J
MJ
Cardiology Division, St. Louis University Hospital, Missouri 63110.
Deligonul
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D000368:Aged; D001024:Aortic Valve Stenosis / Q000150:complications; D006328:Cardiac Catheterization; D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000150:complications / Q000503:physiopathology / Q000628:therapy; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D011312:Pressure