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Introduction: No study so far has tested a beverage containing glutamine 2 h before anesthesia in patients undergoing surgery. Objectives: The aim of the study was to investigate: 1) the safety of the abbreviation of preoperative fasting to 2 h with a carbohydrate-L-glutamine-rich drink; and 2) the residual gastric volume (RGV) measured after the induction of anesthesia for laparoscopic cholecystectomies. Methods: Randomized controlled trial with 56 women (42 (17-65) years-old) submitted to elective laparoscopic cholecystectomy. Patients were randomized to receive either conventional preoperative fasting of 8 hours (fasted group, n = 12) or one of three different beverages drunk in the evening before surgery (400 mL) and 2 hours before the initiation of anesthesia (200 mL). The beverages were water (placebo group, n = 12), 12.5% (240 mOsm/L) maltodextrine (carbohydrate group, n = 12) or the latter in addition to 50 g (40 g in the evening drink and 10g in the morning drink) of L-glutamine (glutamine group, n = 14). A 20 F nasogastric tube was inserted immediately after the induction of general anesthesia to aspirate and measure the RGV. Results: Fifty patients completed the study. None of the patients had either regurgitation during the induction of anesthesia or postoperative complications. The median (range) of RGV was 6 (0-80) mL. The RGV was similar (p = 0.29) between glutamine group (4.5 [0-15] mL), carbohydrate group (7.0 [0-80] mL), placebo group (8.5 [0-50] mL), and fasted group (5.0 [0-50] mL). Conclusion: The abbreviation of preoperative fasting to 2 h with carbohydrate and L-glutamine is safe and does not increase the RGV during induction of anesthesia.
Palabras Clave: Cholecystectomy. Preoperative fasting. Glutamine. Residual gastric volume. Randomized controlled study.
Elizângela Gonçalves Schemitt , Josieli Raskopf Colares , Renata Minuzzo Hartmann , María Isabel Morgan-martins , Cláudio Augusto Marroni , M. Jesús Tuñón , Norma Possa Marroni
Yazmin Lizeth Beltrán Chaidez , Diana Yolanda Reyes Barretero , Miriam Verónica Flores Merino , Emigdio Jaimes Alpizar , Valerie Yselle de Anda Torres , M.ª Victoria Domínguez García
Blanca G. Beltrán Piña , Martha I. González Castro , Marta Irene Gonzalez Castro
Rodrigo Fernandes Weyll Pimentel , Sandra Lúcia Fernandes
Cristina Tejera Pérez , Cristina Guillín Amarelle , Nazareth Rodríguez Novo , Gloria Lugo Rodríguez , Beatriz Mantiñán Gil , Regina Palmeiro Carballeira , Francisco Pita Gutiérrez , Rosa Argüeso Armesto , Ana Cantón Blanco , Manuel Antonio Botana López , María Teresa Fernández López , Virginia Muñoz Leira , Santiago Rodeiro Marta , Miguel Ángel Martínez Olmos
Elena Garicano Vilar , Sara Sanz Rojo , Sara López Oliva , Silvia Martínez , Ana Terrén Lora , Ismael San Mauro Martin
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