Abstract
Metformin-induced lactic acidosis is a rare life-threatening complication associated with metformin treatment and has a high mortality rate. Here, two cases of metformin-induced lactic acidosis are reported. A 22-year-old woman was admitted to our hospital with a metformin overdose (25 g) and lactic acidosis. Hemodialysis was initiated to correct the acidemia, and the patient showed full recovery. Her serum creatinine level returned to normal. A 50-year-old man presented with a 5-day history of muscle weakness. His medical history included diabetes mellitus for 6 years treated with metformin at 3,000 mg/day and hypertension. An arterial blood sample showed metabolic acidosis, with a venous lactate level of 31.1 mg/dL. The patient recovered fully after treatment with bicarbonate dialysis. These cases illustrate that the presence of clinical conditions such as renal failure increase the risk of metformin-induced lactic acidosis. Prompt recognition of lactic acidosis and early treatment with bicarbonate dialysis can result in a successful clinical outcome.
저자들은 자살목적으로 과량의 메포르민 음독 후에 발생한 유산산증과 신기능 저하상태에서 지속적으로 복용 중 발생한 유산산증을 혈액투석을 통해 성공적으로 치료된 증례를 경험하였기에 문헌고찰과 함께 보고하는 바이다.