Platelet indices and erectile dysfunction: A systematic review and meta-analysis.

Area of Science:

• Cardiovascular Science
• Hematology
• Urology

Background:

• Platelet indices, including platelet count (PLT), mean platelet volume (MPV), and platelet distribution width (PDW), are implicated in cardiovascular diseases.
• Cardiovascular conditions are closely linked to the development of erectile dysfunction (ED).
• The potential role of platelet indices in the pathogenesis of ED requires further investigation.

Purpose of the Study:

• To systematically review and meta-analyze existing literature on platelet indices in subjects with ED compared to controls.
• To assess the association between PLT, MPV, and PDW and the presence of ED.
• To clarify the potential role of platelet indices in the underlying mechanisms of ED.

Main Methods:

• A systematic literature search was conducted across Cochrane Library, PubMed, EMBASE, and MEDLINE databases.
• 14 qualified articles, comprising 1595 cases and 987 controls, were included in the meta-analysis.
• Standard mean difference (SMD) with 95% confidence intervals (CIs) were used to estimate outcome measures, with subgroup analyses performed based on ED etiology.

Main Results:

• Pooled analysis indicated significantly increased MPV levels in subjects with ED (SMD = 0.651 fl; 95% CI: 0.567-0.735).
• Subgroup analysis revealed higher MPV levels in patients with vasculogenic ED compared to controls (SMD = 1.026; 95% CI: 0.823-1.228).
• Pooled analyses for PLT and PDW yielded inconsistent results, showing no strong evidence of correlation with ED.

Conclusions:

• Vasculogenic ED patients exhibit elevated mean platelet volume (MPV) levels.
• While MPV shows a potential link to ED, particularly vasculogenic ED, further research is needed.
• High-quality studies are warranted to confirm these findings and elucidate the precise role of platelet indices in ED pathogenesis.