| Autor: |
Rosenheck, Shimon, Bondy, Chava, Weiss, Avraham T., Gotsman, Mervyn S. |
| Předmět: |
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| Zdroj: |
Pacing & Clinical Electrophysiology; Feb1993, Vol. 16 Issue 2, p272-276, 5p |
| Abstrakt: |
The underlying heart rhythm was evaluated in 74 patients with complete atrioventricular block and had a permanent pacemaker implantation. The pacing was inhibited for 10 seconds or until the patient developed symptoms of presyncope or syncope. Fifty-six patients (74%) had a reliable escape with a mean cycle length of 2010 ± 596 msec and a mean escape interval of 2335 ± 971 msec. In 93% of these patients the escape interval was < 4 seconds. The patients without reliable escape (24%), developed symptoms only after a mean of 7153 ± 1875 msec. The duration of the. conduction disorder was longer in the patients without escape and the intraventricular conduction was slower. More patients without escape were treated with antiar- rhythmic agents. Forty-eight patients were followed for 1 year and underwent at least two different studies and 1% had different results at different tests. In conclusion, patients without reliable escape have a longer history of conduction disorder, a slower intraventricular conduction, and are frequently treated with antiarrhythmic agents. Even patients with reliable escape occasionally may show a greater pace- maker dependence; therefore, they should also be considered as pacemaker dependent. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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