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Multimodal protocols to optimize perioperative care and to accelerate postoperative recovery include abbreviated pre-and postoperative fasting. The aim of this study was to investigate the pre and postoperative fasting period and the factors that influence it in patients who underwent elective operations. We included patients who underwent surgery of the digestive tract and abdominal wall. Data were collected from the patients and from their personal health records. We included 135 patients between 19 and 89 years old. Most were adults (75.55%), female (60.74%) and the most common procedures were hernioplasty (42.96%) and cholecystectomy (34.81%). The preoperative fasting periods for solids and liquids were similar, median 16.50 (5.50-56.92) and 15.75 (2.50-56.92) hours, respectively. The preoperative fasting period was influenced by the instruction received and surgery time. Postoperative fasting period was 15.67 (1.67-90.42) hours and was influenced by type of surgery and lack of synchrony between the clinical meeting and the nutrition and dietetics service schedules.
