Why the study?
Do sudden changes in ventricular rate affect forearm blood flow and systemic arterial pressure in patients with complete heart block on external pacemakers?
Population
6 patients being maintained with external pacemaking for complete heart block
Comparison
Sudden changes in heart rate via external… vs Different heart rates within the same patients
Design
Case_series
Follow-up
Immediate
Authors
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Should not change pacing practice in heart block; leaves open diastolic filling time effects on pulse volume.
Do sudden changes in ventricular rate affect forearm blood flow and systemic arterial pressure in patients with complete heart block on external pacemakers?
In patients with complete heart block, sudden changes in paced ventricular rate do not significantly alter forearm blood flow, but do alter pulse volume and arterial pressure in proportion to diastolic filling time.
Bevegård et al. (1973) studied this question.
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