EVALUATING THE RELATIONSHIP BETWEEN LOWER URINARY TRACT SYMPTOMS AND ENDOTHELIAL FUNCTION USING FLOW-MEDIATED DILATION, AND THE EFFECTS OF TADALAFIL

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  • Flow Mediated Dilation（FMD）を用いた血管内皮機能と下部尿路症状の関連およびタダラフィル投与の有効性の検討

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<p> (Objective) Recently, lower urinary tract symptoms (LUTS) were reported to be associated with endothelial dysfunction. Endothelial function is non-invasively measured by flow-mediated dilation (FMD). As tadalafil has the potential to improve atherosclerosis, we evaluated the relationship between LUTS and endothelial function using FMD, and the effects of tadalafil.</p><p> (Patients and methods) We conducted FMD examinations for a total of 122 males, and analyzed its association with IPSS, OABSS, and cardiovascular risks. Furthermore, 21 BPH patients received 5 mg of tadalafil per day for one year. We defined the Low FMD group as FMD < 3.9% and the Control group as other values, and compared the effects of tadalafil between groups.</p><p> (Results) In the 122 male patients, FMD was negatively correlated with nocturia and OABSS. Patients with hypertension or coronary artery disease had a lower FMD than those without.</p><p>In the tadalafil administration study, the Low FMD group achieved greater improvement of IPSS, OABSS and FMD than the Control group.</p><p> (Conclusion) FMD examination revealed that endothelial dysfunction is closely associated with LUTS in males, and that tadalafil is effective for patients with endothelial dysfunction.</p>

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