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Maternal Body Mass Index and Anovaginal Distance in Active Phase of Term Labor
Linköping University, Department of Clinical and Experimental Medicine, Division of Children's and Women's health. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center of Paediatrics and Gynaecology and Obstetrics, Department of Gynaecology and Obstetrics in Linköping.
Linköping University, Department of Clinical and Experimental Medicine, Division of Children's and Women's health. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center of Paediatrics and Gynaecology and Obstetrics, Department of Gynaecology and Obstetrics in Linköping.
Linköping University, Department of Clinical and Experimental Medicine, Division of Children's and Women's health. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center of Paediatrics and Gynaecology and Obstetrics, Department of Gynaecology and Obstetrics in Linköping.
Linköping University, Department of Clinical and Experimental Medicine, Division of Children's and Women's health. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center of Paediatrics and Gynaecology and Obstetrics, Department of Gynaecology and Obstetrics in Linköping.
2018 (English)In: BioMed Research International, ISSN 2314-6133, E-ISSN 2314-6141, article id 1532949Article in journal (Refereed) Published
Abstract [en]

Introduction. To evaluate if there was a difference in the anovaginal distance (AVD) measured by transperineal ultrasound between obese and normal weight women. Material and Methods. A prospective observational study including 207 primiparous women at term in first stage of labor. Transperineal ultrasound with a vaginal probe was used to measure the AVD. Maternal, pregnancy, and delivery characteristics potentially associated with perineal thickness were extracted from womans medical records. The participants were divided into three BMI groups based on maternal weight in early pregnancy: normal weight (BMI amp;lt; 25), overweight (BMI 25-29.9), and obesity (BMI amp;gt;= 30). Obese and overweight women were compared with normal weight women regarding the AVD. Results. The mean AVD was 24.3, 24.9, and 27.0 mm in the normal weight, overweight, and obesity group, respectively. There were no group differences in background characteristics. The AVD was significantly longer in obese women compared with normal weight women (p = 0.018). Conclusions. The observed longer AVD in obese women might be protective of the anal sphincter complex, explaining lower rates of anal sphincter injuries in this group. Further studies are indicated to evaluate whether the length of the AVD plays a role in the risk assessment of obstetric anal sphincter injury.

Place, publisher, year, edition, pages
HINDAWI LTD , 2018. article id 1532949
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Obstetrics, Gynecology and Reproductive Medicine
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URN: urn:nbn:se:liu:diva-147181DOI: 10.1155/2018/1532949ISI: 000426998300001OAI: oai:DiVA.org:liu-147181DiVA, id: diva2:1199454
Available from: 2018-04-20 Created: 2018-04-20 Last updated: 2019-05-01

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Hjertberg, LindaUustal, EvaPihl, SofiaBlomberg, Marie
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Division of Children's and Women's healthFaculty of Medicine and Health SciencesDepartment of Gynaecology and Obstetrics in Linköping
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