Document Detail

Intervention during labor: risk factors associated with complete tear of the anal sphincter.
MedLine Citation:
PMID:  1332371     Owner:  NLM     Status:  MEDLINE    
Among 41,200 consecutive deliveries there were 152 cases of complete tear of the anal sphincter (complete tear). In a case-control design, the association between interventions during labor (forceps, vacuum extraction, use of oxytocin and prostaglandins and mediolateral episiotomy) and complete tear, were evaluated by confounder control using multiple logistic regression analysis. Controls chosen were the patients delivering just before and after the index patient with complete tear. Use of Kielland forceps, mediolateral episiotomy, shoulder dystocia and nulliparity were significantly associated with complete tear. Maternal age, presentation in labor, duration of second stage of labor and the indication for instrumental deliveries and episiotomy had no significant association with complete tear.
K Moller Bek; S Laurberg
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Acta obstetricia et gynecologica Scandinavica     Volume:  71     ISSN:  0001-6349     ISO Abbreviation:  Acta Obstet Gynecol Scand     Publication Date:  1992 Oct 
Date Detail:
Created Date:  1992-12-17     Completed Date:  1992-12-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370343     Medline TA:  Acta Obstet Gynecol Scand     Country:  DENMARK    
Other Details:
Languages:  eng     Pagination:  520-4     Citation Subset:  IM    
Department of Gynecology and Obstetrics, AAS Aarhus University Hospital, Denmark.
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MeSH Terms
Anal Canal / injuries*
Case-Control Studies
Obstetric Labor Complications / epidemiology*
Regression Analysis
Risk Factors

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