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Related Experiment Video

Updated: May 11, 2026

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[Blunt or sharp expansion of cesarean section: a comparative study].

B Chicaud1, C Roux, R-C Rudigoz

  • 1Maternité de la Croix-Rousse, 103, grande rue de la Croix-Rousse, 69004 Lyon, France. b.chicaud@gmail.com

Journal De Gynecologie, Obstetrique Et Biologie De La Reproduction
|May 4, 2013
PubMed
Summary

Sharp expansion during cesarean sections (c-sections) showed a lower drop in hemoglobin but a trend toward more uterine lacerations compared to blunt expansion. This impacts surgical technique choices for c-sections.

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Area of Science:

  • Obstetrics and Gynecology
  • Surgical Techniques

Background:

  • Cesarean sections (c-sections) are common surgical procedures.
  • The method of hysterotomy expansion can influence surgical outcomes.

Purpose of the Study:

  • To evaluate the impact of blunt versus sharp hysterotomy expansion on maternal blood loss and uterine lacerations during c-sections.

Main Methods:

  • A prospective study of 214 c-sections.
  • Group 1: blunt expansion (n=136).
  • Group 2: sharp expansion with scissors (n=78).

Main Results:

  • No significant difference in median blood loss between groups (475mL vs. 500mL, P=0.227).
  • Significantly lower hemoglobin decrease in the sharp expansion group (6g/L vs. 9.5g/L, P=0.007).

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Last Updated: May 11, 2026

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Laparoscopic Extracorporeal Knot-Tying for Uterine Vessel Occlusion during Hysterectomy with Cervical Cerclage in Large Uteri
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  • More uterine lacerations in the blunt expansion group (5.88% vs. 1.28%), with some involving the uterine vascular pedicle.

    • Conclusions:

    • Sharp hysterotomy expansion is associated with a lower decrease in hemoglobin levels.
    • Sharp expansion showed a trend towards more uterine lacerations, some with vascular complications.