Evaluation of the Episiotomy Scissors Attached with an Adjusted Angle Plate for Mediolateral Episiotomy on the Occurrence of Obstetric Anal Sphincter Injuries

Main Article Content

Phiangjit Wiruchpongsanon
Sunida Chaitikul

Abstract

Objectives: To assess the rate of obstetric anal sphincter injuries (OASI) and the angle after repair following mediolateral episiotomy performed with episiotomy scissors attached with an adjusted angle plate
Materials and Methods: The study group comprises 153 primiparous women at 37-42 weeks of gestation delivered between December 2022 and July 2023 in the labor room, Taksin Hospital. Scissors with a 60-degree adjusted angle plate were applied. Suture angles were recorded on transparent sheet and analyzed. Before suturing, a rectal exam was done to check for OASI.
Results: Of 153 primiparous women were recruited into the present study, the mean gestational age was 38.56 ± 1.06 weeks, the mean birthweight was 2,990.82 ± 327.39 grams. The mean post-suturing episiotomy angles were 44.92 ± 5.88 degrees (95 % confidence interval 44-45.9). The change in angle decreased from before cutting by 15.07±5.88 degrees. No cases of OASI were detected.
Conclusion: During childbirth, mediolateral episiotomy is performed using scissors attached to a 60-degree adjusted angle plate to cut the perineum. The mean perineal angle after suture repair was 44.9 degrees, a decrease of 15 degrees. No anal sphincter injury was detected.

Article Details

How to Cite
(1)
Wiruchpongsanon , P. .; Chaitikul, S. Evaluation of the Episiotomy Scissors Attached With an Adjusted Angle Plate for Mediolateral Episiotomy on the Occurrence of Obstetric Anal Sphincter Injuries. Thai J Obstet Gynaecol 2024, 32, 68-75.
Section
Original Article

References

Sultan AH, Kamm MA, Hudson CN, Bartram CI. Third degree obstetric anal sphincter tears: risk factors and outcome of primary repair. BMJ 1994;304:887-91.

Walsh CJ, Mooney EF, Upton GJ, Motson RW. Incidence of third-degree perineal tears in labour and outcome after primary repair. Br J Surg 1996;83:218-21.

Andrews V, Sultan AH, Thakar R, Jones PW. Risk factors for obstetric anal sphincter injury: a prospective study. Birth 2006;33:117-22.

Klokk R, Bakken KS, Markestad T, Holten-Anderson MN. Modifiable and non-modifiable risk factors for obstetric anal sphincter injury in a Norwegian Region: a case-control study. BMC Pregnancy Childbirth 2022;22:277-83.

Fitzpatrick M, Behan M, O’Herlihy C. A randomized clinical trial comparing primary overlap with approximation repair of third-degree obstetric tears. Am J Obstet Gynecol 2000;183:1220-4.

de Leeuw JW, Vierhout ME, Struijk PC, Hop WCJ, Wallenberg HCS. Anal sphincter damage after vaginal delivery: functional outcome and risk factors for fecal incontinence. Acta Obstet Gynecol Scand 2001;80: 830-4.

Williams A. Third-degree perineal tears: risk factors and outcome after primary repair. J Obstet Gynecol 2003;23:611-4.

Dee EF, Becky G, Pavna B, Lorri M, John OLD. Fecal and urinary incontinence after vaginal delivery with anal sphincter disruption in an obstetrics unit in the United States. Am J Obstet Gynecol 2003;189:1543-50.

Baruch Y, Gold R, Eisenberg H, Amir H, Reicher L, Yogev Y. High incidence of obstetric anal sphincter injuries among immigrant women of Asian ethnicity. J Clin Med 2023;12:1044-50.

Albar M, Aviram A, Anabusi S, Huang T, Tunde-Byass M, Mei-Dan E. Maternal ethnicity and the risk of obstetrical anal sphincter injury: a retrospective cohort study. Obstetrics 2021;43:469-73.

Rizk DE, Czechowski J, Ekelund L. Dynamic assessment of pelvic floor and bony pelvis morphologic condition with the use of magnetic resonance imaging in a multiethnic, nulliparous, and healthy female population. Am J Obstet Gynecol 2004;191:83–9.

Muizzuddin N, Hellemans L, Van Overloop L, Corstjens H, Declercq L, Maes D. Structural and functional differences in barrier properties of African American, Caucasian and East Asian skin. J Dermatol Sci 2010;59:123–8.

Eogan M, Daly L, O’Connell PR, O’Herlihy C. Does the angle of episiotomy affect the incidence of anal sphincter injury? BJOG 2006;113:190-4.

Vladimir K, Karbanova J, Horak M, Lobovsky L, Kralickova M, Rokyta Z. The incision angle of mediolateral episiotomy before delivery and after repair. IJGO 2008;103:5-8.

Wiruchpongsanon P, Maharungruengrat A. Incidence of obstetric anal sphincter injuries by 60 degrees for the incision angle of mediolateral episiotomy before delivery. Thai J Obstet Gynaecol 2013;21:95-100.

Stedenfeldt M, Pirhonen J, Blix E, Wilsgaard T, Vonen B, Oian P. Episiotomy characteristics and risks for obstetric anal sphincter injuries: a case-control study. BJOG 2012;119:724-30.

van Dillen J, Spaans M, van Keijsteren W, van Dillen M, Vredevoogd C, van Huizev M, et al. A prospective multicenter audit of labor-room episiotomy and anal sphincter injury assessment in the Netherlands. Int J Gynecol Obstet 2010;108:97-100.

Cole J, Lacey L, Bulchandani S. The use of Episcissors-60 to reduce the rate of obstetric anal sphincter injuries: a systematic review. Eur J Obstet Gynecol Reprod Biol 2019;237:23-7.

Thanapongpibul C, Suksamarnwong M. Effects of Episioguide - a 60º mediolateral episiotomy guide device – on post suture episiotomy angle: a randomized controlled trial. Thai J Obstet Gynaecol 2022;30:7-14.

Sultan AH. Obstertric perineal injury and anal incontinence. Clin Risk 1999;5:193-6.

Freeman RM, Hollands, Barron LF, Kapoor DS. Cutting a mediolateral episiotomy at the correct angle: evaluation of a new device, the Episcissors-60. Med Devices Evid Res 2014;7:23-8.

Patel RP, Ubale SM. Evaluation of the angled Episcissors-60 episiotomy scissors in spontaneous vaginal deliveries. Med Devices Evid Res 2014;7:253-6.

Cole J, Lacey L, Bulchandani S. The use of Episcissors-60 to reduce the rate of obstetric anal sphincter injuries: a systematic review. Eur J Obstet Gynecol Reprod Biol 2019;237:23-7.

Andrews V, Thakar R, Sultan AH, Jones PW. Are mediolateral episiotomies actually mediolateral? BJOG 2005;112:220-4.