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Preoperative Oral Branched-Chain Amino Acid Supplementation Suppresses Intraoperative and Postoperative Blood Lactate Levels in Patients Undergoing Major Hepatectomy.
JPEN. Journal of Parenteral and Enteral Nutrition 2019 Februrary
BACKGROUND: Lactate production is exacerbated by surgical stress. We sought to determine whether branched-chain amino acid (BCAA) supplementation could decrease blood lactate levels in patients undergoing hepatectomy.
METHODS: A total of 275 consecutive patients who underwent hepatectomy of ≥2 segments were retrospectively reviewed. Blood lactate levels in patients treated with BCAA supplementation before hepatectomy (December 2011 to December 2016) were compared with levels in patients who were not pretreated (January 2008 to November 2011).
RESULTS: Postoperative lactate levels were significantly lower in patients who received preoperative BCAA supplementation than in those who did not (2.6 vs 3.4 mmol/L; P < .001). Intraoperative blood lactate levels, which were evaluated after induction of general anesthesia, were also lower in those who received BCAA supplementation than in those who did not (1.1 vs 1.5 mmol/L, respectively; P < .001). A multiple regression analysis revealed that preoperative BCAA supplementation was independently associated with decreased postoperative and intraoperative lactate levels (P = .030 and P < .001, respectively).
CONCLUSION: Preoperative BCAA supplementation decreased intraoperative and postoperative blood lactate levels in patients undergoing major hepatectomy.
METHODS: A total of 275 consecutive patients who underwent hepatectomy of ≥2 segments were retrospectively reviewed. Blood lactate levels in patients treated with BCAA supplementation before hepatectomy (December 2011 to December 2016) were compared with levels in patients who were not pretreated (January 2008 to November 2011).
RESULTS: Postoperative lactate levels were significantly lower in patients who received preoperative BCAA supplementation than in those who did not (2.6 vs 3.4 mmol/L; P < .001). Intraoperative blood lactate levels, which were evaluated after induction of general anesthesia, were also lower in those who received BCAA supplementation than in those who did not (1.1 vs 1.5 mmol/L, respectively; P < .001). A multiple regression analysis revealed that preoperative BCAA supplementation was independently associated with decreased postoperative and intraoperative lactate levels (P = .030 and P < .001, respectively).
CONCLUSION: Preoperative BCAA supplementation decreased intraoperative and postoperative blood lactate levels in patients undergoing major hepatectomy.
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