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Comparison of international index of erectile function with nocturnal penile tumescence and rigidity testing in evaluation of erectile dysfunction.
Int J Impot Res 2006 Mar-Apr; 18(2):186-9IJ

Abstract

We tried to compare the parameters of nocturnal penile tumescence and rigidity (NPTR) testing with erectile function (EF) domain score of International Index of Erectile Function (IIEF), which is used in diagnosis and determining the severity of erectile dysfunction (ED), and to assess the sufficiency of IIEF in the diagnosis of ED. A total of 90 men, mean age 46 years (24-75), presenting with ED to our clinic between January 2001 and March 2003 were included in the trial. All the men answered the standard IIEF (15 questions) forms and was divided into four groups as mild ED, moderate ED, severe ED and no ED according to the EF domain score that is obtained from 1st, 2nd, 3rd, 4th, 5th and 15th questions. Then NPTR testing with the RigiScan Plus monitoring device was performed for two consecutive nights on those men. The distribution of the six parameters of NPTR testing (number of erections, duration of erections, TAU base, RAU base, TAU tip, RAU tip) among the four groups and the correlation with IIEF-EF domain score were evaluated. Additionally, the distribution of the risk factors (diabetes mellitus, hypertension, atherosclerotic heart disease, dyslipidemia and smoking) was analyzed both among the four groups and in each group. According to IIEF-EF domain scores of 90 patients, 16 (18%) had severe ED, 21 (23%) moderate ED, 41 (46%) mild ED and 12 (13%) no ED. There was no statistically significant difference between the risk factors among the men in these groups (P > 0.05). When the IIEF-EF domain scores were compared with parameters of NPTR testing, no statistically significant difference was obtained among ED groups (mild, moderate, severe) (P > 0.05). However, we observed a statistically significant difference between three ED groups and no ED group (P < 0.05). If NPTR testing is considered as a gold standard test, sensitivity, specificity, positive predictive value and negative predictive value of IIEF-EF domain score in ED diagnosis are 100, 17.9, 29.4 and 100% respectively. In conclusion, we did not observe a clinical correlation between IIEF-EF domain scores and NPTR parameters in the whole population; however, we observed that if IIEF-EF domain scores were normal, NPTR parameters were also normal. In other words, we can say that if the initial IIEF-EF domain scores are normal, then we do not have to perform NPTR testing. This could be helpful to make a cost-effective diagnosis.

Authors+Show Affiliations

Department of Urology, School of Medicine, University of Ankara, Sihhiye, Ankara, Turkey.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

16151473

Citation

Tokatli, Z, et al. "Comparison of International Index of Erectile Function With Nocturnal Penile Tumescence and Rigidity Testing in Evaluation of Erectile Dysfunction." International Journal of Impotence Research, vol. 18, no. 2, 2006, pp. 186-9.
Tokatli Z, Akand M, Yaman O, et al. Comparison of international index of erectile function with nocturnal penile tumescence and rigidity testing in evaluation of erectile dysfunction. Int J Impot Res. 2006;18(2):186-9.
Tokatli, Z., Akand, M., Yaman, O., Gulpinar, O., & Anafarta, K. (2006). Comparison of international index of erectile function with nocturnal penile tumescence and rigidity testing in evaluation of erectile dysfunction. International Journal of Impotence Research, 18(2), pp. 186-9.
Tokatli Z, et al. Comparison of International Index of Erectile Function With Nocturnal Penile Tumescence and Rigidity Testing in Evaluation of Erectile Dysfunction. Int J Impot Res. 2006;18(2):186-9. PubMed PMID: 16151473.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of international index of erectile function with nocturnal penile tumescence and rigidity testing in evaluation of erectile dysfunction. AU - Tokatli,Z, AU - Akand,M, AU - Yaman,O, AU - Gulpinar,O, AU - Anafarta,K, PY - 2005/9/10/pubmed PY - 2006/4/28/medline PY - 2005/9/10/entrez SP - 186 EP - 9 JF - International journal of impotence research JO - Int. J. Impot. Res. VL - 18 IS - 2 N2 - We tried to compare the parameters of nocturnal penile tumescence and rigidity (NPTR) testing with erectile function (EF) domain score of International Index of Erectile Function (IIEF), which is used in diagnosis and determining the severity of erectile dysfunction (ED), and to assess the sufficiency of IIEF in the diagnosis of ED. A total of 90 men, mean age 46 years (24-75), presenting with ED to our clinic between January 2001 and March 2003 were included in the trial. All the men answered the standard IIEF (15 questions) forms and was divided into four groups as mild ED, moderate ED, severe ED and no ED according to the EF domain score that is obtained from 1st, 2nd, 3rd, 4th, 5th and 15th questions. Then NPTR testing with the RigiScan Plus monitoring device was performed for two consecutive nights on those men. The distribution of the six parameters of NPTR testing (number of erections, duration of erections, TAU base, RAU base, TAU tip, RAU tip) among the four groups and the correlation with IIEF-EF domain score were evaluated. Additionally, the distribution of the risk factors (diabetes mellitus, hypertension, atherosclerotic heart disease, dyslipidemia and smoking) was analyzed both among the four groups and in each group. According to IIEF-EF domain scores of 90 patients, 16 (18%) had severe ED, 21 (23%) moderate ED, 41 (46%) mild ED and 12 (13%) no ED. There was no statistically significant difference between the risk factors among the men in these groups (P > 0.05). When the IIEF-EF domain scores were compared with parameters of NPTR testing, no statistically significant difference was obtained among ED groups (mild, moderate, severe) (P > 0.05). However, we observed a statistically significant difference between three ED groups and no ED group (P < 0.05). If NPTR testing is considered as a gold standard test, sensitivity, specificity, positive predictive value and negative predictive value of IIEF-EF domain score in ED diagnosis are 100, 17.9, 29.4 and 100% respectively. In conclusion, we did not observe a clinical correlation between IIEF-EF domain scores and NPTR parameters in the whole population; however, we observed that if IIEF-EF domain scores were normal, NPTR parameters were also normal. In other words, we can say that if the initial IIEF-EF domain scores are normal, then we do not have to perform NPTR testing. This could be helpful to make a cost-effective diagnosis. SN - 0955-9930 UR - https://www.unboundmedicine.com/medline/citation/16151473/Comparison_of_international_index_of_erectile_function_with_nocturnal_penile_tumescence_and_rigidity_testing_in_evaluation_of_erectile_dysfunction_ L2 - http://dx.doi.org/10.1038/sj.ijir.3901390 DB - PRIME DP - Unbound Medicine ER -