Erektil Disfonksiyonda Tanısal Testler: IIEF, Penil Doppler USG ve Noktürnal Ereksiyon Testleri
Synopsis
The diagnostic assessment of erectile dysfunction requires an integrated evaluation of sexual function, underlying causes, and clinical factors that influence treatment decisions. This chapter examines the clinical use of the International Index of Erectile Function (IIEF), penile color Doppler ultrasonography, and nocturnal penile tumescence and rigidity (NPTR) monitoring in light of current literature and guidelines. It outlines the structure and scoring of the IIEF-15 and IIEF-5/SHIM, their role in assessing erectile dysfunction severity, and their contribution to monitoring treatment response. For pharmacologically stimulated penile Doppler ultrasonography, the chapter addresses indications, examination protocols, hemodynamic parameters, safety precautions, and potential sources of misinterpretation. The physiological basis and recording methods of NPTR monitoring are discussed alongside its contribution to evaluating organic and psychogenic components and its limitations related to sleep and recording conditions. Emphasizing that these tests address different clinical questions, the chapter provides a framework for interpreting results together with medical history, physical examination, and laboratory findings. Appropriate patient selection and standardized testing are highlighted as essential to avoiding unnecessary investigations and supporting individualized clinical decision-making.
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