Accumulation of chylomicron on the venous side of the hemodialysis circuit in maintenance hemodialysis patients with acute femoral neck fractures

Abstract

A 76-year-old male who had been receiving maintenance hemodialysis with a cellulose triacetate dialyzer in a nearby clinic was admitted to our medical center with a right femoral neck fracture. He had undergone bipolar hip arthroplasty of the right femoral bone. Before and after the operation, he received hemodialysis using a cellulose triacetate dialyzer. In each dialysis session, the accumulation of chylomicron was observed on the venous side of the hemodialysis circuit when blood return was performed with 0.9% saline fluid. The patient had no lipid metabolism abnormalities. Systemic inflammation due to the bone fracture and the trapping of chylomicron by the cellulose triacetate dialyzer were considered to have contributed to the accumulation of chylomicron on the venous side of the hemodialysis circuit in this case. Clinicians should be aware that chylomicron can accumulate in the hemodialysis circuit when hemodialysis is performed in patients in the acute phase of bone fractures.