| Summary: | Abstract Background Patients with renal failure are susceptible to electrolyte disturbances including life-threatening hyperkalemia, and intraoperative hepatic damage exacerbates it. We report a case on hemodialysis who developed intraoperative remarkable hyperkalemia caused by hepatic damage during laparoscopic gastrectomy. Case presentation A 48-year-old man underwent laparoscopic gastrectomy for gastric cancer. He had been on hemodialysis for chronic renal failure. Serum K+ continued to increase to a maximum level of 7.4 mEq/L, despite the infusion of glucose with insulin during surgery. Postoperative computed tomography revealed hepatic infarction. Combined with increased hepatic enzymes, hepatic infarction caused by intraoperative mechanical traction would have exacerbated hyperkalemia. Conclusions We report a case on hemodialysis who developed intraoperative hyperkalemia due to hepatic damage. Our case highlights hepatic damage during laparoscopic gastrectomy as a potential cause of hyperkalemia.
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