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Korean J Anesthesiol. 1990 Jun;23(3):464-469. Korean. Original Article.
Lee YG , Baek WY , Hong JG , Park JW , Kim BK .
Department of Anesthesiology, Kyungpook National University, Taegu, Korea.

The aim of this investigation was to determine whether epidural analgesia has any effect on the uterine activity. Uterine activity was checked by an intermal tocometer and calculated in uterine activity units (UAU) which were expressed as Montevideo units. Twenty two gravidas who had the term pregnancy in labor without any obstertical complications were selected and epidural analgesia was performed in 17 of these patients. Plain lidocaine was used in 10 of them, lidocaine mixed with epinephrine (200,000:1) was used in another 7 gravidas and 5 gravidas were chosen as a control group. The results were as follows: The uterine actvity of the continuous epidural anesthesia group did not differ from that of the control group. The uterine activity changes were not statistically significant between the plain Iidocaine group and the epinephrine mixed group.

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