[Systemic endothelial dysfunction in patients with pseudoexfoliation syndrome].

Area of Science:

• Ophthalmology
• Cardiology
• Vascular Biology

Context:

• Pseudoexfoliation syndrome (PEX) is increasingly recognized beyond ocular tissues, affecting systemic structures like blood vessels.
• Vascular endothelial dysfunction is a known contributor to elevated cardiovascular risk.
• Previous research indicates PEX may have systemic implications, necessitating further study into its vascular effects.

Purpose:

• To investigate brachial artery endothelial function in patients diagnosed with pseudoexfoliation syndrome.
• To compare endothelial function, specifically flow-mediated dilation (FMD) and nitroglycerin-mediated dilation (NMD), between PEX patients and a healthy control group.

Summary:

• Patients with PEX exhibited significantly impaired flow-mediated dilation (FMD) compared to controls (p=0.02).
• Nitroglycerin-mediated dilation (NMD) was also reduced in PEX patients, though this difference did not reach statistical significance (p<0.69).
• The findings indicate a statistically significant association between PEX and systemic vascular endothelial dysfunction.

Impact:

• This study highlights a potential link between pseudoexfoliation syndrome and systemic vascular health.
• The results suggest that PEX patients may face an increased cardiovascular risk.
• Further large-scale clinical studies are warranted to confirm these findings and elucidate the full cardiovascular implications for PEX patients.