Severe lactic acidosis with euglycemic diabetic ketoacidosis due to metformin overdose

© 2023. The Author(s) under exclusive licence to The Japan Society of Nephrology..

Metformin-associated lactic acidosis is a well-known metformin treatment complication; however, the development of euglycemic diabetic ketoacidosis (euDKA) has rarely been reported. Here we report a case of lactic acidosis and euDKA after metformin overdose. A 57-year-old female patient was transferred to our hospital with severe metabolic acidosis and acute kidney injury. She had type 2 diabetes mellitus and was on oral antidiabetic therapy of vildagliptin metformin hydrochloride daily. On the admission day, she had committed suicide by overdosing 50 tablets of vildagliptin metformin hydrochloride, which was equivalent to 25,000 mg of metformin and 2500 mg of vildagliptin. She had severe lactic acidosis 5 h after overdosing. However, after 34 h of overdosing, serum lactate levels decreased while serum anion gap levels increased. She received single hemodialysis treatment. Serum total ketone bodies, β-hydroxybutyrate acetoacetic acid, and acetone were increased even after hemodialysis treatment. Her blood glucose levels have never exceeded 250 mg/dL since admission. Therefore, we considered that the cause of metabolic acidosis in this patient was not only lactic acidosis but also euDKA. The causes of euDKA in our patient might be hepatic production of ketone bodies due to metformin overdose in addition to type 2 diabetes mellitus, starvation, infection, and stressful physical conditions such as vomiting and diarrhea. We propose that not only lactic acidosis but also ketoacidosis is one of the important pathological conditions in patients with metformin overdose.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:12

Enthalten in:

CEN case reports - 12(2023), 4 vom: 07. Nov., Seite 408-412

Sprache:

Englisch

Beteiligte Personen:

Kuno, Hideaki [VerfasserIn]
Fujimaru, Takuya [VerfasserIn]
Kadota, Nozomi [VerfasserIn]
Konishi, Kasumi [VerfasserIn]
Sekiguchi, Momoko [VerfasserIn]
Watanabe, Kimio [VerfasserIn]
Ito, Yugo [VerfasserIn]
Nagahama, Masahiko [VerfasserIn]
Taki, Fumika [VerfasserIn]
Hifumi, Toru [VerfasserIn]
Otani, Norio [VerfasserIn]
Nakayama, Masaaki [VerfasserIn]

Links:

Volltext

Themen:

9100L32L2N
Acute kidney injury
Case Reports
Euglycemic diabetic ketoacidosis
I6B4B2U96P
Journal Article
Ketone Bodies
Lactic acidosis
Metformin
Metformin-associated lactic acidosis (MALA)
Overdose
Vildagliptin

Anmerkungen:

Date Completed 08.02.2024

Date Revised 08.02.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s13730-023-00783-w

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM354397699