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Intra-abdominal irrigation with saline is commonly performed after closing the uterine incision during cesarean deliveries, ostensibly to lower risk for maternal infection; however, supportive evidence is scant, and the practice has been hypothesized to precipitate nausea and vomiting. Investigators performed a single-institution trial of abdominal cavity irrigation in 236 women who required cesarean delivery. Participants were randomized to abdominal irrigation with 0.5–1.0 L of warm normal saline or to surgery without intraperitoneal irrigation. The trial was powered to detect a between-group difference in rates of intraoperative nausea.
After adjustment for other surgical techniques that could influence the likelihood of gastrointestinal …