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[Influence of obstructive sleep apnea-hypopnea syndrome on the QTc interval].

[Article in Chinese]

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  • 1Department of Geriatrics, Second Xiangya Hospital, Central South University, Changsha 410011, China.

Abstract

OBJECTIVE:

To investigate the influence of obstructive sleep apnea-hypopnea syndrome (OSAHS) on the QTc interval.

METHODS:

By the polysomnograph,98 patients were divided into an obstructive sleep apnea-hypopnea syndrome group and a control group. We tested their 24 hour DCG and observed the difference of the heart rate,QT interval and QTc interval at the same time.

RESULTS:

We compared the heart rate (76 +/- 10 bt/min), QT interval (366 +/- 30 ms), and QTc interval (404 +/- 45 ms) with those of the control group (73 +/- 96 bt/min, 342 +/- 31 ms, 374 +/- 30 ms, respectively). The QT interval and QTc interval significantly differred (P < 0.05).

CONCLUSION:

The QT interval and QTc interval in the OSAHS group has been prolonged, suggesting OSAHS might be a high risk factor in arrhythmia and sudden death.

PMID:
16137019
[PubMed - indexed for MEDLINE]
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