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Inhibitory effects of desflurane and sevoflurane on contractions of isolated gravid rat myometrium under oxytocin stimulation

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Abstract:

Background:

We studied the inhibitory effects of desflurane and sevoflurane on oxytocin-induced contractions of isolated gravid rat myometrium. Methods:

Twenty strips were obtained from rats and these were randomly assigned into two groups. The effects of desflurane and sevoflurane were evaluated by treating strips with oxytocin alone 2×10−9 M or with oxytocin after desflurane and sevoflurane at 0.5, 1, and 2 MAC. Results:

Oxytocin significantly increased the amplitude and duration of contractions (P< 0.05), but it did not increase the frequency. The duration (84%, 79%), amplitude (90%, 84%) and frequency (88%, 75%) were inhibited at 2 MAC of desflurane and sevoflurane, respectively. Conclusion:

These results suggest that the in vitro application of desflurane and sevoflurane similarly inhibit oxytocin-induced myometrial contractions of gravid rat in a dose-dependent manner.

Keywords: Desflurane; gravid; isolated; minimum alveolar concentration; myometrium; oxytocin; rat; sevoflurane

Document Type: Research Article

DOI: http://dx.doi.org/10.1034/j.1399-6576.2003.00087.x

Affiliations: 1: Anesthesiology and 2: Pharmacology, Erciyes University School of Medicine, Kayseri, Turkey

Publication date: April 1, 2003

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