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  • Title: Impact of Perioperative Phosphorus and Glucose Levels on Liver Regeneration and Long-term Outcomes after Major Liver Resection.
    Author: Margonis GA, Amini N, Buettner S, Ghasebeh MA, Besharati S, Kim Y, Gani F, Sobhani F, Samaha M, Kamel IR, Pawlik TM.
    Journal: J Gastrointest Surg; 2016 Jul; 20(7):1305-16. PubMed ID: 27121234.
    Abstract:
    INTRODUCTION: The impact of phosphorus as well as glycemic alterations on liver regeneration has not been directly examined. We sought to determine the impact of phosphorus and glucose on liver regeneration after major hepatectomy. METHODS: Early and late liver regeneration index was defined as the relative increase of liver volume (RLV) within 2[(RLV2m-RLVp)/RLVp] and 7 months[(RLV7m-RLVp)/RLVp] following surgery. The association of perioperative metabolic factors, liver regeneration, and outcomes was assessed. RESULTS: On postoperative day 2, 50 (52.6 %) patients had a low phosphorus level (≤2.4 mg/dl), while 45 (47.4 %) had a normal/high phosphorus level (>2.4 mg/dl). Despite comparable clinicopathologic characteristics (all P > 0.05) and RLV/TLV at surgery (P = 0.84), regeneration index within 2 months was lower in the normal/high phosphorus group (P = 0.01) with these patients having increased risk for postoperative liver failure (P = 0.01). The inhibition of liver regeneration persisted at 7 months (P = 0.007) and was associated with a worse survival (P = 0.02). Preoperative hypoglycemia was associated only with a lower early regeneration index (P = 0.02). CONCLUSIONS: Normal/high phosphorus was associated with inhibition of early and late liver regeneration, as well as with an increased risk of liver failure and worse long-term outcomes. Immediate preoperative hypoglycemia was associated with a lower early volumetric gain. Metabolic factors may represent early indicators of liver failure that could identify patients at increased risk for worse outcomes.
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