Taiwanese journal of obstetrics & gynecology · 2016
Site and incidence of birth canal lacerations from instrumental delivery with mediolateral episiotomy.
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Chikazawa Kenro, Ushijima Junko, Takagi Kenjiro, Nakamura Eishin, Samejima Koki, Kadowaki Kanako, Horiuchi Isao
Аннотация
OBJECTIVE: Instrument-assisted vaginal delivery is a significant risk factor for birth canal lacerations. Although many obstetricians recently are recommending restrictive rather than a routine episiotomy, reports have shown restrictive episiotomy to be associated with more extensive anterior birth canal trauma compared with routine episiotomy.
MATERIALS AND METHODS: We retrospectively reviewed 110 cases of forceps and vacuum deliveries and investigated the site of birth canal lacerations. Birth canal lacerations were divided into four sites according to direction-anterior, ipsilateral, contralateral, and posterior.
RESULTS: The frequency of lacerations were, from most to least, posterior (34%), lateral (21.7%), and anterior (1.9%). Moreover, among the lateral lacerations, they were more frequent in the contralateral side of episiotomy than the ipsilateral side (18.9% vs. 4.7%, p < 0.01).
CONCLUSION: Our results indicate that caution is also needed concerning not only the anterior site, but also the contralateral site of an episiotomy to prevent laceration in an instrument-assisted vaginal delivery.
MATERIALS AND METHODS: We retrospectively reviewed 110 cases of forceps and vacuum deliveries and investigated the site of birth canal lacerations. Birth canal lacerations were divided into four sites according to direction-anterior, ipsilateral, contralateral, and posterior.
RESULTS: The frequency of lacerations were, from most to least, posterior (34%), lateral (21.7%), and anterior (1.9%). Moreover, among the lateral lacerations, they were more frequent in the contralateral side of episiotomy than the ipsilateral side (18.9% vs. 4.7%, p < 0.01).
CONCLUSION: Our results indicate that caution is also needed concerning not only the anterior site, but also the contralateral site of an episiotomy to prevent laceration in an instrument-assisted vaginal delivery.