Dyslipidemia and Diabetic Macular Edema: A Systematic Review and Meta-Analysis.
Ophthalmology
; 122(9): 1820-7, 2015 Sep.
Article
em En
| MEDLINE
| ID: mdl-26150053
ABSTRACT
TOPIC A systematic review and meta-analysis of dyslipidemia and diabetic macular edema (DME). CLINICAL RELEVANCE Diabetic macular edema causes impairment of vision in patients with diabetes, and dyslipidemia has been reported as a risk factor for its development. A systematic review with a meta-analysis was undertaken to examine the evidence of an association between dyslipidemia and DME. METHODS:
We defined eligibility criteria as randomized controlled trials (RCTs) and cohort, case-control, and cross-sectional studies reporting on the relationship between blood lipid levels and DME. We performed a literature search in MEDLINE, PubMed, and Embase from inception to September 2014. We used the Newcastle-Ottawa scale to assess the quality of case-control, cross-sectional, and cohort studies, and the Cochrane risk of bias tool for RCTs.RESULTS:
The search strategy identified 4959 publications. After screening, we selected 21 articles for review (5 cross-sectional, 5 cohort, 7 case-control, and 4 RCTs). Meta-analysis of case-control studies revealed that mean levels of total serum cholesterol (TC), low-density lipoproteins (LDLs), and serum triglycerides (TGs) were significantly higher in patients with DME compared with those without DME (TC 30.08; 95% confidence interval [CI], 21.14-39.02; P < 0.001; LDL 18.62; 95% CI, 5.80-31.43; P < 0.05; TG 24.82; 95% CI, 9.21-40.42; P < 0.05). Meta-analysis of RCTs did not show significant risk in worsening of hard exudates and severity of DME in the lipid-lowering group compared with placebo (hard exudates relative risk, 1.00; 95% CI, 0.47-2.11; P = 1.00; DME relative risk, 1.18; 95% CI, 0.75-1.86; P = 0.48).CONCLUSIONS:
Despite evidence from the cohort studies and meta-analysis of the case-control studies suggesting a strong relationship between lipid levels and DME, this was not confirmed by the meta-analysis that included only prospective RCTs. Therefore, given the significant public health relevance of the topic, the relationship between lipid levels and DME deserves further investigation.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Edema Macular
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Retinopatia Diabética
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Dislipidemias
Tipo de estudo:
Clinical_trials
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Etiology_studies
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Incidence_studies
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Observational_studies
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Prevalence_studies
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Prognostic_studies
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Risk_factors_studies
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Systematic_reviews
Limite:
Humans
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article