Metformin-Associated Lactic Acidosis (MALA). Our experiencie and a review

Introduction: Metformin (a biguanide) for the treatment of Type 2 Diabetes Mellitus is widely used worldwide. However, is a double-edged sword for critically ill patients. One of the most important problems with its use is the risk of developing metformin-associated lactic acidosis (MALA). We presen...

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Main Authors: Enrique Chicote-Álvarez, Helena Camino-Ferró, Marlene Feo-González, Maite Arlabán-Carpintero, Natalia Gloria Lizama-Gómez
Format: Article
Language:English
Published: Emergency Department of Hospital San Pedro (Logroño, Spain) 2025-01-01
Series:Iberoamerican Journal of Medicine
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Online Access:https://doi.org/10.53986/ibjm.2025.0007
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author Enrique Chicote-Álvarez
Helena Camino-Ferró
Marlene Feo-González
Maite Arlabán-Carpintero
Natalia Gloria Lizama-Gómez
author_facet Enrique Chicote-Álvarez
Helena Camino-Ferró
Marlene Feo-González
Maite Arlabán-Carpintero
Natalia Gloria Lizama-Gómez
author_sort Enrique Chicote-Álvarez
collection DOAJ
description Introduction: Metformin (a biguanide) for the treatment of Type 2 Diabetes Mellitus is widely used worldwide. However, is a double-edged sword for critically ill patients. One of the most important problems with its use is the risk of developing metformin-associated lactic acidosis (MALA). We present our 10-year experience with lactic acidosis attributed to MALA as well as a review of the literature. Material and methods: We reviewed admissions to the Intensive Care Unit (ICU) of a secondary-level hospital (630 inpatient beds) with diagnoses of "metabolic acidosis," "lactic acidosis," and "metformin-associated lactic acidosis" from January 2014 to June 2024. Data were collected from patients' electronic medical records and entered into an Excel® document for analysis. Results: Of the total 72 cases reviewed, 11 were included. Nine cases were male (81.82%), with a mean age of 75.36 years (ages ranging from 63 to 80 years). None of the cases had a history of chronic kidney disease, but all presented with acute renal failure. Renal replacement therapies (RRT) were used in all cases, with 6 patients initially treated with and 9 patients with conventional hemodialysis. The mortality rate was 0%. However, in the literature MALA presents a mortality exceeding 10% according to several studies. Conclusions: MALA is a very serious condition and early diagnosis is very important. The use of renal replacement therapies is of Paramount importance as well as clinical suspicion.
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spelling doaj-art-79afbf15ff8f4c1bb7a5869964307c002025-08-20T02:12:36ZengEmergency Department of Hospital San Pedro (Logroño, Spain)Iberoamerican Journal of Medicine2695-50752025-01-0172424510.53986/ibjm.2025.0007Metformin-Associated Lactic Acidosis (MALA). Our experiencie and a reviewEnrique Chicote-Álvarez0Helena Camino-Ferró1Marlene Feo-González2Maite Arlabán-Carpintero3Natalia Gloria Lizama-Gómez4Department of Intensive Care Medicine, Hospital San Pedro, Logroño, SpainDepartment of Intensive Care Medicine, Hospital San Pedro, Logroño, SpainDepartment of Intensive Care Medicine, Hospital San Pedro, Logroño, SpainDepartment of Intensive Care Medicine, Hospital San Pedro, Logroño, SpainDepartment of Pharmacy, Hospital San Pedro, Logroño, SpainIntroduction: Metformin (a biguanide) for the treatment of Type 2 Diabetes Mellitus is widely used worldwide. However, is a double-edged sword for critically ill patients. One of the most important problems with its use is the risk of developing metformin-associated lactic acidosis (MALA). We present our 10-year experience with lactic acidosis attributed to MALA as well as a review of the literature. Material and methods: We reviewed admissions to the Intensive Care Unit (ICU) of a secondary-level hospital (630 inpatient beds) with diagnoses of "metabolic acidosis," "lactic acidosis," and "metformin-associated lactic acidosis" from January 2014 to June 2024. Data were collected from patients' electronic medical records and entered into an Excel® document for analysis. Results: Of the total 72 cases reviewed, 11 were included. Nine cases were male (81.82%), with a mean age of 75.36 years (ages ranging from 63 to 80 years). None of the cases had a history of chronic kidney disease, but all presented with acute renal failure. Renal replacement therapies (RRT) were used in all cases, with 6 patients initially treated with and 9 patients with conventional hemodialysis. The mortality rate was 0%. However, in the literature MALA presents a mortality exceeding 10% according to several studies. Conclusions: MALA is a very serious condition and early diagnosis is very important. The use of renal replacement therapies is of Paramount importance as well as clinical suspicion.https://doi.org/10.53986/ibjm.2025.0007metforminlactic acidosiscritical care
spellingShingle Enrique Chicote-Álvarez
Helena Camino-Ferró
Marlene Feo-González
Maite Arlabán-Carpintero
Natalia Gloria Lizama-Gómez
Metformin-Associated Lactic Acidosis (MALA). Our experiencie and a review
Iberoamerican Journal of Medicine
metformin
lactic acidosis
critical care
title Metformin-Associated Lactic Acidosis (MALA). Our experiencie and a review
title_full Metformin-Associated Lactic Acidosis (MALA). Our experiencie and a review
title_fullStr Metformin-Associated Lactic Acidosis (MALA). Our experiencie and a review
title_full_unstemmed Metformin-Associated Lactic Acidosis (MALA). Our experiencie and a review
title_short Metformin-Associated Lactic Acidosis (MALA). Our experiencie and a review
title_sort metformin associated lactic acidosis mala our experiencie and a review
topic metformin
lactic acidosis
critical care
url https://doi.org/10.53986/ibjm.2025.0007
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AT marlenefeogonzalez metforminassociatedlacticacidosismalaourexperiencieandareview
AT maitearlabancarpintero metforminassociatedlacticacidosismalaourexperiencieandareview
AT nataliaglorializamagomez metforminassociatedlacticacidosismalaourexperiencieandareview