December 1, 1981Circulation
Site of antegrade and retrograde functional right bundle branch block in the intact canine heart.
Population
20 adult mongrel dogs during cardiopulmonary bypass
Design
Preclinical
Authors
Discussion
Loading...
Member takes
Implication
Caution against extrapolating canine RBB sites to human reentry management; leaves open mechanistic confirmation in prospective clinical studies.
Structured PICO
P
Population
20 adult mongrel dogs during cardiopulmonary bypass
I
Intervention
Premature atrial stimulation and premature right ventricular stimulation
O
Outcome
Site of conduction delay or block during antegrade and retrograde functional right bundle branch block (FRBBB) and occurrence of reentrant excitationsurrogate
In a canine model, antegrade functional right bundle branch block typically occurs in the proximal RBB, whereas retrograde block occurs distally, both facilitating reentrant excitation.
Cite This Study
Glassman et al. (1981) studied this question.