[Sinus node in patients with atrioventricular and interventricular blocks. Electrophysiologic evaluation].
To assess the function of the sino-atrial node, electrophysiological study with pharmacological autonomic blockade was performed in 3 groups of patients: group I with a-v III zero or II zero type 2 heart block, group II with bifascicular interventricular blocks and group III-controls. Sino-atrial node electrogram was recorded in 81% of patients. Obtained results show, that sino-atrial node dysfunction is uncommon in patients with atrioventricular or interventricular blocks (8.6% and 15% respectively). Electrophysiological assessment of sino-atrial node function seems to be important in the consideration of patients with a-v or interventricular blocks for appropriate type of permanent pacing.
Kaźmierczak
J
J
Klinika Kardiologii Pomorskiej AM, Szczecinie.
Kornacewicz-Jach
Z
Z
Gil
R
R
D000293:Adolescent; D000328:Adult; D000368:Aged; D002304:Cardiac Pacing, Artificial; D004562:Electrocardiography; D006327:Heart Block / Q000175:diagnosis* / Q000628:therapy; D006801:Humans; D008875:Middle Aged; D012849:Sinoatrial Node / Q000503:physiopathology*
Wezeł zatokowy u chorych z blokami przedsionkowo-komorowymi i śródkomorowymi. Ocena elektrofizjologiczna.