Third- and fourth-degree perineal tears: prevalence and risk factors in the third millennium.

نویسندگان

  • Asnat Groutz
  • Joseph Hasson
  • Anat Wengier
  • Ronen Gold
  • Avital Skornick-Rapaport
  • Joseph B Lessing
  • David Gordon
چکیده

OBJECTIVE We sought to assess the modern prevalence and risk factors for third- and fourth-degree perineal tears. STUDY DESIGN The study population comprised 38,252 women who delivered in one medical center, from January 2005 through December 2009, and met the following inclusion criteria: singleton pregnancy, vertex presentation, and vaginal delivery. Of these, 96 women (0.25%) sustained third- or fourth-degree perineal tears. Maternal and obstetric variables were compared between women with vs without severe perineal tears. RESULTS Five variables were found to be statistically significant independent risk factors: Asian ethnicity (odds ratio [OR], 8.9; 95% confidence interval [CI], 4.2-18.9), primiparity (OR, 2.4; 95% CI, 1.5-3.7), persistent occipito posterior (OR, 2.1; 95% CI, 1-4.5), vacuum delivery (OR, 2.7; 95% CI, 1.6-4.6), and heavier birthweight (OR, 1.001; 95% CI, 1-1.001). CONCLUSION Severe perineal tears are uncommon in modern obstetric practice. Significant risk factors are Asian ethnicity, primiparity, persistent occipito posterior, vacuum delivery, and heavier birthweight.

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Preconceptional counseling of women with previous third and fourth degree perineal tears

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عنوان ژورنال:
  • American journal of obstetrics and gynecology

دوره 204 4  شماره 

صفحات  -

تاریخ انتشار 2011