Influence of the KCl concentration on rat sinus node recovery time in vitro
Braz. j. med. biol. res
; 22(6): 803-6, June 1989. ilus, tab
Article
in English
| LILACS
| ID: lil-75245
Responsible library:
BR26.1
ABSTRACT
The influence of changes in the KCl concentration of the bath fluid ([KCl]o) on the corrected sinus node recovery time (CSNRT) was studied using the continuous pacing method (M1) and the method of stimulation with premature pulses (M2). M1 and M2 were compared in Krebs-Henseleit solution containing normal (4.6 mM), low (3.1mM, LoKCl) and hight (6.1 mM, HiKCl) [KCl]o. The results revealed that HiKCl increased CSNRT (P < 0.01) and changed the prematurit-CSNRT relationship (P<0.01), whereas LoKCL did not change CSNRT. M1 and M2 were different (P<0.01) regardless of [KCl]o, except for pacing intervals near the spontaneous cycle length
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Collection:
International databases
Database:
LILACS
Main subject:
Potassium Chloride
/
Sinoatrial Node
/
In Vitro Techniques
Language:
English
Journal:
Braz. j. med. biol. res
Journal subject:
Biology
/
Medicine
Year:
1989
Document type:
Article
/
Congress and conference
/
Project document