Dataset Information

The association of serum magnesium and mortality outcomes in heart failure patients: A systematic review and meta-analysis.

ABSTRACT:

Background

Low serum magnesium (Mg) has been independently shown to increase risk of heart failure (HF), but data on the association between serum Mg concentration and the outcome of patients with HF are conflicting. The purpose of this systematic review and meta-analysis was to estimate the prognostic effects of hypermagnesemia and hypomagnesemia on cardiovascular (CV) mortality and all-cause mortality (ACM) of patients with HF.

Methods

Relevant studies were identified from Medline and Scopus databases. Included and excluded criteria were defined. Effects (i.e., log [risk ratio [RR]]) of hypomagnesemia and hypermagnesemia versus normomagnesemia were estimated using Poisson regression, and then a multivariate meta-analysis was applied for pooling RRs across studies. Heterogeneity was explored using a meta-regression and subgroup analysis.

Results

On analysis, 7 eligible prospective studies yielded a total of 5172 chronic HF patients with 913 and 1438 deaths from CV and ACM, respectively. Most participants were elderly men with left ventricular (LV) ejection fraction ?40%. Those patients with baseline hypermagnesemia had a significantly higher risk of CV mortality (RR, 1.38; 95% confidence interval [CI], 1.07-1.78) or ACM (RR, 1.35; 95% CI, 1.18-1.54) than those with baseline normomagnesemia. However, baseline hypomagnesemia was not associated with the risk of CV mortality (RR, 1.11; 95% CI, 0.79-1.57) and ACM (RR, 1.11; 95% CI, 0.87-1.41). A subgroup analysis by Mg cutoff suggested a dose-response trend for hypermagnesemia effects, that is, the pooled RRs for CV mortality were 1.28 (95% CI, 1.05-1.55) and 1.92 (95% CI, 1.00-3.68) for the cutoff of 0.89 to 1.00 and 1.05 to 1.70?mmol/L, respectively.

Conclusion

The present systematic review and meta-analysis suggested that, in HF patients, hypermagnesemia with serum Mg???1.05?mmol/L was associated with an increased risk of CV mortality and ACM but this was not observed for hypomagnesemia. This finding was limited to the elderly patients with chronic HF who had reduced LV systolic function.

SUBMITTER: Angkananard T

PROVIDER: S-EPMC5268025 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

The association of serum magnesium and mortality outcomes in heart failure patients: A systematic review and meta-analysis.

Angkananard Teeranan T Anothaisintawee Thunyarat T Eursiriwan Sudarat S Gorelik Oleg O McEvoy Mark M Attia John J Thakkinstian Ammarin A

Medicine 20161201 50

<h4>Background</h4>Low serum magnesium (Mg) has been independently shown to increase risk of heart failure (HF), but data on the association between serum Mg concentration and the outcome of patients with HF are conflicting. The purpose of this systematic review and meta-analysis was to estimate the prognostic effects of hypermagnesemia and hypomagnesemia on cardiovascular (CV) mortality and all-cause mortality (ACM) of patients with HF.<h4>Methods</h4>Relevant studies were identified from Medli ...[more]

PMID: 27977579

Similar Datasets

Project description:BACKGROUND:The role of statins in patients with heart failure (HF) of different levels of left ventricular ejection fraction (LVEF) remains unclear especially in the light of the absence of prospective data from randomized controlled trials (RCTs) in non-ischemic HF, and taking into account potential statins' prosarcopenic effects. We assessed the association of statin use with clinical outcomes in patients with HF. METHODS:We searched PubMed, EMBASE, Scopus, Google Scholar and Cochrane Central until August 2018 for RCTs and prospective cohorts comparing clinical outcomes with statin vs non-statin use in patients with HF at different LVEF levels. We followed the guidelines of the 2009 PRISMA statement for reporting and applied independent extraction by multiple observers. Meta-analyses of hazard ratios (HRs) of effects of statins on clinical outcomes used generic inverse variance method and random model effects. Clinical outcomes were all-cause mortality, cardiovascular (CV) mortality and CV hospitalization. RESULTS:Finally we included 17 studies (n?=?88,100; 2 RCTs and 15 cohorts) comparing statin vs non-statin users (mean follow-up 36?months). Compared with non-statin use, statin use was associated with lower risk of all-cause mortality (HR 0.77, 95% confidence interval [CI], 0.72-0.83, P?<?0.0001, I2 =?63%), CV mortality (HR 0.82, 95% CI: 0.76-0.88, P?<?0.0001, I2 =?63%), and CV hospitalization (HR 0.78, 95% CI: 0.69-0.89, P?=?0.0003, I2 =?36%). All-cause mortality was reduced on statin therapy in HF with both EF?<?40% and???40% (HR: 0.77, 95% Cl: 0.68-0.86, P?<?0.00001, and HR 0.75, 95% CI: 0.69-0.82, P?<?0.00001, respectively). Similarly, CV mortality (HR 0.86, 95% CI: 0.79-0.93, P?=?0.0003, and HR 0.83, 95% CI: 0.77-0.90, P?<?0.00001, respectively), and CV hospitalizations (HR 0.80 95% CI: 0.64-0.99, P?=?0.04 and HR 0.76 95% CI: 0.61-0.93, P?=?0.009, respectively) were reduced in these EF subgroups. Significant effects on all clinical outcomes were also found in cohort studies' analyses; the effect was also larger and significant for lipophilic than hydrophilic statins. CONCLUSIONS:In conclusion, statins may have a beneficial effect on CV outcomes irrespective of HF etiology and LVEF level. Lipophilic statins seem to be much more favorable for patients with heart failure.

Project description:BackgroundAcute exposure to air pollution has been linked to myocardial infarction, but its effect on heart failure is uncertain. We did a systematic review and meta-analysis to assess the association between air pollution and acute decompensated heart failure including hospitalisation and heart failure mortality.MethodsFive databases were searched for studies investigating the association between daily increases in gaseous (carbon monoxide, sulphur dioxide, nitrogen dioxide, ozone) and particulate (diameter <2·5 ?m [PM2·5] or <10 ?m [PM10]) air pollutants, and heart failure hospitalisations or heart failure mortality. We used a random-effects model to derive overall risk estimates per pollutant.FindingsOf 1146 identified articles, 195 were reviewed in-depth with 35 satisfying inclusion criteria. Heart failure hospitalisation or death was associated with increases in carbon monoxide (3·52% per 1 part per million; 95% CI 2·52-4·54), sulphur dioxide (2·36% per 10 parts per billion; 1·35-3·38), and nitrogen dioxide (1·70% per 10 parts per billion; 1·25-2·16), but not ozone (0·46% per 10 parts per billion; -0·10 to 1·02) concentrations. Increases in particulate matter concentration were associated with heart failure hospitalisation or death (PM2·5 2·12% per 10 ?g/m(3), 95% CI 1·42-2·82; PM10 1·63% per 10 ?g/m(3), 95% CI 1·20-2·07). Strongest associations were seen on the day of exposure, with more persistent effects for PM2·5. In the USA, we estimate that a mean reduction in PM2·5 of 3·9 ?g/m(3) would prevent 7978 heart failure hospitalisations and save a third of a billion US dollars a year.InterpretationAir pollution has a close temporal association with heart failure hospitalisation and heart failure mortality. Although more studies from developing nations are required, air pollution is a pervasive public health issue with major cardiovascular and health economic consequences, and it should remain a key target for global health policy.FundingBritish Heart Foundation.

Dataset Information

The association of serum magnesium and mortality outcomes in heart failure patients: A systematic review and meta-analysis.

Background

Methods

Results

Conclusion

Publications

The association of serum magnesium and mortality outcomes in heart failure patients: A systematic review and meta-analysis.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets