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  • Title: [Comparison of blood loss during cesarean section and during vaginal delivery with episiotomy].
    Author: Sarfati R, Maréchaud M, Magnin G.
    Journal: J Gynecol Obstet Biol Reprod (Paris); 1999 Feb; 28(1):48-54. PubMed ID: 10394516.
    Abstract:
    OBJECTIVE: The aim of our study was to compare blood loss during vaginal delivery with episiotomy and during cesarean section, to determine risk factors, and to determine whether clinical assessment of blood loss at delivery is well-evaluated. PATIENTS AND METHODS: We retrospectively matched 97 vaginal deliveries with episiotomy with 97 cesarean deliveries which has occurred between 1 November 1991 and 30 April 1993. Matching criteria were age, parity, term and birth weight. Blood loss at delivery was defined by a drop in hematocrit greater than 10% between the pre-delivery anesthesia work-up and the laboratory results 3 days post-partum. RESULTS: We found that hemoglobin and hematocrit fell more after vaginal deliveries than after cesarean section (p < 0.05 and p < 0.01). The fall in hemoglobin level and hematocrit were significantly greater after forceps delivery with episiotomy than after spontaneous vaginal delivery (p < 0.01 and p < 0.01). Among the vaginal deliveries, 11 showed laboratory criteria corresponding to blood loss at delivery despite clinical diagnosis in only 2 of them. Unwarranted clinical diagnosis of blood loss at delivery was however made 11 times after vaginal delivery and 19 times after cesarean (20%). CONCLUSION: Our findings demonstrate that blood loss during vaginal delivery with episiotomy is greater than during cesarean section and affirms the determining role of forceps use in association with episiotomy in this blood loss. Clinical assessment of blood loss at delivery lacks precision.
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