What is the clinical evidence from this study?

Study design: Systematic Review. Population: Heart failure. Intervention: Metformin. Primary outcome: Lactic acidosis.

What question did this study set out to answer?

To examine the published clinical evidence evaluating the safety of metformin and the risk of lactic acidosis in patients with heart failure.

March 20, 2007Annals of Pharmacotherapy

The Safety of Metformin in Heart Failure

View Full Paper

Ask AI

Bookmark

Key result

Metformin use in patients with heart failure did not increase the risk of lactic acidosis in 2 large retrospective studies and reduced mortality in one small prospective trial (N=94).

Why the study?

Does metformin increase the risk of lactic acidosis in patients with heart failure?

Population

Patients with heart failure

Design

Systematic_review

Authors

FRFelicia RobertsPurdue University West Lafayette GRGina J. RyanMercer University Health Sciences Center

Discussion

Member takes

Implication

May support metformin use in heart failure without lactic acidosis risk; leaves open confirmation from large prospective trials.

Key Points

To examine the published clinical evidence evaluating the safety of metformin and the risk of lactic acidosis in patients with heart failure.
Searched MEDLINE and International Pharmaceutical Abstracts databases for literature published from 1966 to February 2007.
Identified and reviewed clinical trials, observational studies, and case reports assessing causal links between metformin use and lactic acidosis in heart failure populations.
Found zero case reports of metformin-associated lactic acidosis occurring when heart failure was the sole contraindication.
Two large retrospective studies showed metformin does not increase the risk of lactic acidosis in heart failure patients, though residual confounding was present.
One prospective trial (N = 94) observed reduced mortality rates among metformin users with New York Heart Association Class III and IV heart failure.

Study Design

Type

Systematic Review

Structured PICO

Does metformin increase the risk of lactic acidosis in patients with heart failure?

Population

Patients with heart failure evaluated for the safety of metformin and risk of lactic acidosis across published studies and case reports.

Exposure

Metformin

Outcome

Lactic acidosissafety

Current evidence suggests metformin may be safe to use in heart failure without increasing the risk of lactic acidosis, though large prospective trials are needed for conclusive evidence.

Limitations

Retrospective analyses did not account for many important confounding variables
Lack of large prospective trials to provide conclusive evidence
Lack of large prospective trials

Cite This Study

Roberts et al. (2007) conducted a systematic review in Heart failure. Metformin was evaluated on Lactic acidosis. Metformin use in patients with heart failure did not increase the risk of lactic acidosis in 2 large retrospective studies and reduced mortality in one small prospective trial (N=94).

synapsesocial.com/papers/6a7794cbd3a6aa87c6bdd5d7 https://doi.org/10.1345/aph.1h523

Topics

Heart failure HFrEF treatment SGLT2 inhibitors in heart failure

View Full Paper

Ask AI

Bookmark

The Safety of Metformin in Heart Failure

Discussion

Member takes

Implication

Key Points

Study Design

Structured PICO

Limitations

Cite This Study

Topics

The Safety of Metformin in Heart Failure

Discussion

Member takes

Implication

Key Points

Study Design

Structured PICO

Limitations

Cite This Study

Also Consider

Topics

Also Consider