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1.
General Medicine ; : 72-75, 2013.
Article in English | WPRIM | ID: wpr-374908

ABSTRACT

Metformin is widely prescribed for patients with type 2 diabetes mellitus (DM). Its use for patients with type 1 has been considered a contraindication because of possible adverse effects such as lactic acidosis. However, metformin has been recently used with insulin therapy to reduce insulin-dose requirements in Type 1 DM.<br>An 81-year-old Japanese woman with type 1 DM was treated with insulin and metformin. She was admitted to our hospital due to altered mental state and hypotensive shock via a referral from her primary care physician. The patient had severe lactic acidosis and acute kidney injury with hyperkalemia with the suspected cause being the use of metformin. She was treated successfully with hemodialysis (HD).<br>Although the independent predictive factor of mortality due to metformin-associated lactic acidosis is a prothrombin time (PT) activity of less than 50% in 24 hours, we recommend that HD should be performed for a patient with severe lactic acidosis even if the initial PT activity is normal.

2.
General Medicine ; : 113-116, 2012.
Article in English | WPRIM | ID: wpr-374888

ABSTRACT

Syncope is a common chief complaint in emergency departments, and although causes in most patients with syncope are benign, some patients have a serious disease. Here we report a 50-year-old patient with facial trauma who had past history of alcoholic liver cirrhosis. He fell down by syncope due to portopulmonary hypertension (PPHTN) accompanied by portal hypertension. Oral ambrisentan, a potent ET<sub>A</sub>-selective receptor, 2.5 mg once a day was initiated. His ECG and the results of cardiac catheterization showed improvement in hemodynamic abnormality after the treatment. Also, the patient had no significant symptoms, including syncope, for nine months after receiving ambrisentan.

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