Comparative study between blunt expansion versus sharp expansion of the uterine incision in primiparous woman undergoing low-segment transverse cesarean section

Document Type : Original Article

Authors

1 Department of Obstetrics & Gynecology, Faculty of Medicine, Al-Azhar University

2 Department of Obstetrics & Gynecology, Faculty of Medicine, Al-Azhar University

Abstract

Background: Several surgical methods have been established to reduce intraoperative blood loss in caesarean section deliveries. One of these still-debated methods is the use of sharp or stubborn methods to extend the uterine incision. Depending on individual experiences, various surgeons have recommended each technique.
Aim of the study: To see if the maternal blood loss as a primary outcome is affected by the technique of uterine incision expansion (sharp versus blunt) for caesarean deliveries, with secondary outcomes including unintended extension of uterine incision, injury of uterine vessels, and postoperative pain.
Patients and methods: 500 women from Obstetrics and Gynecology Department at Military Production Specialized Hospital and Bab ALshaaria Maternal University Hospital participated in this randomized clinical trial. They were split into two groups: (250 for each group); (Group A): uterine incision expansion was done bluntly with fingers, (Group B): uterine incision expansion was done sharply with scissors.
Result: In comparison to the blunt extension group, the sharp extension group experienced a considerable increase in estimated blood loss (p < 0.001). Postoperative pain (VAS) was found to be substantially higher in the sharp extension group than in the blunt extension group (p = 0.026).
Conclusion: When compared to sharp dissection of the uterine incision during lower-segment caesarean delivery, blunt dissection of the uterine incision is associated with a significant reduction in blood loss. The use of blunt dissection resulted in significantly less blood loss when volume estimation was used.

Keywords


  1. Calì G, Giambanco L, Puccio G, Forlani F. Morbidly adherent placenta: Evaluation of ultrasound diagnostic criteria and differentiation of placenta accreta from percreta. Ultrasound Obstet Gynecol. 41:406‑12.
  2. Wong HS, Cheung YK, Williams E. Antenatal ultrasound assessment of placental/myometrial involvement in morbidly adherent placenta. Aust N Z J ObstetGynaecol. 2012; 52: 67–72
  3. Comstock CH, Love JJ, Bronsteen RA, Lee W, Vettraino IM, et al. Sonographic detection of placenta accreta in the second and third trimesters of pregnancy. Am J Obstet Gynecol. 2011; 190: 1135–40.
  4. D’Antonio F, Iacovella C, Bhide A. Prenatal identification of invasive placentation using ultrasound: systematic review and meta-analysis. Ultrasound Obstet Gynecol. 2013; 42: 509–17.
  5. Collins SL, Ashcroft A, Braun T, Calda P, Langhoff‐Roos J, et al. Proposal for standardized ultrasound descriptors of abnormally invasive placenta (AIP). Ultrasound in Obstetrics & Gynecology. 2016; 47(3):271-5.
  6. Sedek AA, Awad AM, Nafez MA. Comparison between the role of transabdominal ultrasound versus transvaginal ultrasound in evaluation of placental invasion in cases of placenta previa anterior wall with previous uterine scar. Al-Azhar Med J. 2019; 48(4): 335-50.
  7. Finberg H, Williams J. Placenta accreta: prospective sonographic diagnosis in patients with placenta previa and prior cesarean section. J Ultrasound Med. 1992; 11:333-43.
  8. Wong HS, Zuccollo J, Strand L, Tait J, Pringle KC. The use of ultrasoundin assessing the extent of myometrial involvement in partial placentaaccreta. Ultrasound Obstet Gynecol. 2007; 30:228-30.

Rac MW, Dashe JS, Wells CE, Moschos E, McIntire DD, et al. Ultrasound predictors of placental invasion: the Placenta Accreta Index. American Journal of Obstetrics and Gynecology. 2015; 212(3): 343-44.

  1. REFERENCES

     

    1. Mascarello KC, Horta BL, Silveira MF. Maternal complications and cesarean section without indication: systematic review and meta-analysis. Rev Saude Publica. 2017; 51: 105-9.
    2. Xu LL, Chau AM, Zuschmann A. Blunt vs sharp uterine expansion at lower segment cesarean section delivery: a systematic review with metaanalysis. American Journal of Obstetrics and Gynecology. 2013; 208(1): 62-6.
    3. Schwickert A, van Beekhuizen HJ, Bertholdt C, Fox KA, Kayem G. Association of peripartum management and high maternal blood loss at cesarean delivery for placenta accreta spectrum (PAS): A multinational database study. Acta obstetricia et gynecologica Scandinavica. 2021; 100: 29-40.
    4. Torky HA, Abo-Louz AS, Aly RH, El-Taher OS, et al. Transverse versus longitudinal blunt extension of the uterine incision during cesarean section in women with a uterine scar of previous cesarean delivery: A randomized controlled trial. Journal of Gynecology Obstetrics and Human Reproduction. 2021; 50(10): 102-6.
    5. Faiza F, Sadaf F, Ameena B, Khan NR. Comparison of intra operative hemorrhage by blunt and sharp expansion of uterine incision at cesarean section. Pakistan Journal of Medical Sciences. 2021; 37(7): 1-5.
    6. El-Berry SA, Assar TM, Negm AA, Swylam AS. Blunt incision vs. sharp incision of uterus in cesarean section in post-operative morbidity. Benha Journal of Applied Sciences. 2021; 6(3): 323-328.
    7. Tahir N, Khan SA, Aslam R, Bangash N. Comparison of intraoperative hemorrhage by blunt versus sharp expansion of uterine incision at caesarean delivery. Rawal Medical Journal. 2018; 34(4): 654-960.
    8. Sekhavat L, Dehghani Firouzabadi R, Mojiri P. Effect of expansion technique of uterine inci-sion on maternal blood loss in cesarean section. Arch Gynecol Obstet. 2010; 282: 475-9.
    9. Magann EF, Chauhan SP, Bufkin L. Intra-operative hemorrhage by blunt versus sharp expansion of the uterine incision at cesarean delivery: A randomized clinical trial. Br J Obstetrics and Gynecology. 2002; 109: 448-52.
    10. Song SH, Oh MJ, Kim T, Hur JY, Saw HS, et al. Finger-assisted stretching technique for cesarean section. Int J Gynecol Obstet. 2006; 92(3):212–6