Repercusión de las características de la episiotomía en los desgarros obstétricos del esfinter anal en los partos instrumentales = Impact of episiotomy characteristics in obstetric anal sphincter injury in operative vaginal deliveries

2020 ◽  
Author(s):  
Enrique González-Díaz
Keyword(s):  
Anal Sphincter ◽  
Obstetric Anal Sphincter Injury ◽  
Sphincter Injury ◽  
Anal Sphincter Injury ◽  
Vaginal Deliveries

scholarly journals Third and Fourth Degree Perineal Tear in Four-Year Period at Sestre Milosrdnice University Hospital Center, Zagreb, Croatia

2018 ◽  
Vol 6 (6) ◽  
pp. 1067-1071 ◽  
Author(s):  
Ivka Djaković ◽  
Emina Ejubović ◽  
Ivan Bolanča ◽  
Marina Markuš Sandrić ◽  
Dino Bečić ◽  
...  
Keyword(s):  
Anal Sphincter ◽  
Gestational Age ◽  
Obstetric Anal Sphincter Injury ◽  
Large For Gestational Age ◽  
Vacuum Extraction ◽  
Sphincter Injury ◽  
Fourth Degree ◽  
Anal Sphincter Injury ◽  
Perineal Injury ◽  
Vaginal Deliveries

OBJECTIVES: Obstetric anal sphincter injury (OASIS) includes the third and fourth degree of perineal injury. The risk for OASIS is about 1% of all vaginal deliveries. If not recognised and treated properly, obstetric anal sphincter injury can have serious consequences for reproductive age woman.MATERIAL AND METHODS: We have retrospectively gathered and analysed data on obstetric anal sphincter injury in a four-year period at our department. The control group in this study included vaginal deliveries in 2012.RESULTS: We recorded 0.34% third and fourth degree of perineal injury in all vaginal deliveries, and 87.9% of those patients were primiparae. Episiotomy was performed in 57.6% of all women with obstetric anal sphincter injury. In 30.3% of cases, newborns were large for gestational age. Gestational diabetes was found in 9.1% of OASIS cases, occipitoposterior position was found in 9.1% of cases. Induced labour took place in 39.4%, and oxytocin infusion was applied in 60.6% of OASIS cases. Vacuum extraction was performed in 12.1% of deliveries with OASIS. The average BMI in 3a and 3b injuries was 29.9. In 3c degree it was 28.0, and in the fourth degree, it was 32.1. In 27.0% of OASIS cases due to the extent of the injury surgeon engagement was necessary. When compared with vaginal deliveries in 2012 we found a significant increase in OASIS in primiparas, large for gestational age, occipitoposterior position, induced labour, vacuum extraction and hypertension (P < 0.01). There is also increased incidence of OASIS in episiotomy and oxytocin use group (P < 0.05).CONCLUSION: Low incidence of OASIS in our department is a result of active management of delivery, manual perineal protection and timely episiotomy.

scholarly journals Mode of Vaginal Delivery: A Modifiable Intrapartum Risk Factor for Obstetric Anal Sphincter Injury

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Marta Simó González ◽  
Oriol Porta Roda ◽  
Josep Perelló Capó ◽  
Ignasi Gich Saladich ◽  
Joaquim Calaf Alsina
Keyword(s):  
Risk Factor ◽  
Vaginal Delivery ◽  
Anal Sphincter ◽  
University Hospital ◽  
Obstetric Anal Sphincter Injury ◽  
Vacuum Extraction ◽  
Sphincter Injury ◽  
Anal Sphincter Injury ◽  
Vaginal Deliveries ◽  
Spontaneous Delivery

The aim of this study was to analyze the comparative risks of this anal sphincter injury in relation to the type of intervention in vaginal delivery. We performed an observational, retrospective study of all vaginal deliveries attended at a tertiary university hospital between January 2006 and December 2009. We analyzed the incidence of obstetric anal sphincter injury for each mode of vaginal delivery: spontaneous delivery, vacuum, Thierry spatulas, and forceps. We determined the proportional incidence between methods taking spontaneous delivery as the reference. Ninety-seven of 4526 (2.14%) women included in the study presented obstetric anal sphincter injury. Instrumental deliveries showed a significantly higher risk of anal sphincter injury (2.7 to 4.9%) than spontaneous deliveries (1.1%). The highest incidence was for Thierry spatulas (OR 4.804), followed by forceps (OR 4.089) and vacuum extraction (OR 2.509). The type of intervention in a vaginal delivery is a modifiable intrapartum risk factor for obstetric anal sphincter injury. Tearing can occur in any type of delivery but proportions vary significantly. All healthcare professionals attending childbirth should be aware of the risk for each type of intervention and consider these together with the obstetric factors in each case.

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