Role of RigiScan in the Etiologic Differential Diagnosis of Erectile Dysfunction

Karadeniz, Tahir; Topsakal, Medih; Aydogmus, Ahmet; Beksan, Murat

doi:10.1159/000283015

Cited by 22 publications

(18 citation statements)

References 6 publications

(9 reference statements)

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“…An alternative to the NPT test for differential diagnosis is the use of audiovisual sexual stimulation (AVSS) [3,4]. Several methods for the objective measurement of penile tumescence and rigidity have been described [5], of which the RigiScan system is most widely used [6]. This method was introduced by Bradley et al [7] in 1985.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study between AudiovisualSexual Stimulation Test and Nocturnal Penile Tumescence Test Using RigiScan Plus in the Evaluatio n of Erectile Dysfunction

Mizuno¹,

Fuse²,

Fujiuchi³

et al. 2004

Urol Int

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Introduction: Although the nocturnal penile tumescence (NPT) test is considered the gold standard for the differential diagnosis of psychogenic versus organic erectile dysfunction (ED), concerns have recently been raised regarding the financial and time expenditure it demands. We evaluated the diagnostic efficacy of the audiovisual sexual stimulation (AVSS) test as an alternative to the NPT test. Patients and Methods: A total of 43 patients with ED were examined. Each patient filled in an International Index of Erectile Function (IIEF) questionnaire. The evaluation of each patient consisted of AVSS and NPT tests which were performed using the RigiScan Plus. The results obtained with the two tests were compared. The patients with normal NPT patterns were presumed to have a psychogenic etiology of their ED and those with abnormal NPT patterns to have an organic etiology. Results: The overall IIEF score was 32.5 ± (SD) 9.2, and the erectile domain score was 12.2 ± 4.5. Twenty-three patients had normal responses to the AVSS test, while 20 had abnormal responses. Twenty-two of the former 23 patients and 9 of the latter 20 patients had normal NPT patterns. Therefore, the AVSS test discriminated psychogenic ED with 71% sensitivity and 92% specificity. The overall accuracy of the test in this study was 77%. Conclusions: The AVSS test is simple, practical, and inexpensive, and its diagnostic accuracy is comparable to that of the NPT test. We conclude that the AVSS test should be the examination of choice for the primary etiological diagnosis in ED.

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Section: Introductionmentioning

confidence: 99%

Comparative Study between AudiovisualSexual Stimulation Test and Nocturnal Penile Tumescence Test Using RigiScan Plus in the Evaluatio n of Erectile Dysfunction

Mizuno¹,

Fuse²,

Fujiuchi³

et al. 2004

Urol Int

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“…It is interesting to assess whether lower preoperative IIEF-5 scores are related ED post-PKVP. Patients who developed ED postoperatively clearly had much lower preoperative IIEF-5 scores (range [16][17][18][19][20][21]. Thus, the IIEF-5 score is a risk factor for ED post-PKVP.…”

Section: Discussionmentioning

confidence: 99%

“…[15][16][17][18][19][20] The patients had to have an IIEF-5 score of Ͼ16 and normal NPT, defined as at least one episode of nocturnal erection with both base and tip rigidity exceeding 55% for at least 10 minutes. 12 Nocturnal tumescence was evaluated with the RigiScan (Dacomed, Minneapolis, Minnesota) on three consecutive nights 3 to 4 days preoperatively and again 3 months postoperatively.…”

Section: Methodsmentioning

confidence: 99%

Erectile Dysfunction after PlasmaKinetic Vaporization of the Prostate: Incidence and Risk factors

Wang

et al. 2006

Journal of Endourology

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“…It is well accepted that the results of NPTR have some controversies regarding the period of erection and the rigidity of penis at rapid eye movement (RAM) and has been found to be unreliable to simulate natural erection [21,23,26]. The length of the test period was another factor which made this technique negligible for the clinician.…”

Section: Discussionmentioning

confidence: 99%

Evaluation and Therapeutic Regulation of Erectile Dysfunction with Visual Stimulation Test

Erbağcı¹,

Yağcı²,

Sarıca³

et al. 2002

Urol Int

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Aim: An objective evaluation of the psychogenic cause of erectile dysfunction by performing the visual stimulation tumescence and rigidity (VSTR) test and sildenafil citrate test, together with the effectiveness of sildenafil citrate medication on impotence caused by different etiologies. Material and Methods: Between 1998 and 2000, a total of 36 men (12 patients with diabetic etiology, 5 patients with vasculogenic risk factor) were enrolled in this study. The mean age of patients was 53 (27–67) years. Following standard questionnaires, including a detailed anamnesis from an andrologic viewpoint, VST was performed in an ambulatory setting and beginning with a test dose of 50 mg. At the end of 2 h, the data was evaluated with computer assistance (Rigiscan device) and if a satisfactory erection had not occurred, an additional second dose of sildenafil citrate (50 mg) was given until there was a satisfactory erection. Results obtained from VST: results were classified as group I (fully rigidity, >10 min erection, >70% of rigidity, possible vaginal penetration), group II (unstable erection, 5 min erection, >70% of rigidity, possible vaginal penetration) and group III (tumescence without rigidity, <5 min erection, <70% of rigidity, impossible vaginal penetration). The results obtained during the first 1 h of the VSTR test were regarded as the patient’s own erectile condition and later data was accepted as the real effect of sildenafil citrate. The Fisher exact test was used for statistical evaluation including pre- and post-sildenafil effect on erectile rigidity and duration of erection. Results: The erection status of patients was sufficient in 17 (47.2%) in group I, it was insufficient but sufficient enough with an increased dose of sildenafil citrate in 10 (27.7%) in group II, and insufficient without/with full dose of sildenafil citrate in 9 (25%) in group III. Considering rigidity and total erectile period, there was a statistical significant difference between the first two groups with respect to the early and late sildenafil citrate effects on the VSTR test (p < 0.05). Again, 10 patients with known risk factors (diabetes mellitus 5 and vasculogenic 5) in the second group seemed to give a good response to repeated dosage of sildenafil citrate which has been found to be very interesting. However, the rest of the diabetic patients (n = 7) in the third group showed no erection despite the increasing and repeated doses of sildenafil citrate. Conclusion: Sildenafil citrate with the VSTR test has effective and reliable results which was regarded as very important to diagnose and determine objectively the amount of therapeutic doses in impotence. In accordance with the literature data, our results also confirm the reliability and the practical nature of the VSTR test, which is less time-consuming and cheaper than the nocturnal penile tumescence and rigidity (NPTR) test. In the VSTR test, necessary doses of medication needed for satisfactory erection were easily regulated in patients with certain kinds of impotence. Add...

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Role of RigiScan in the Etiologic Differential Diagnosis of Erectile Dysfunction

Cited by 22 publications

References 6 publications

Comparative Study between AudiovisualSexual Stimulation Test and Nocturnal Penile Tumescence Test Using RigiScan Plus in the Evaluatio n of Erectile Dysfunction

Comparative Study between AudiovisualSexual Stimulation Test and Nocturnal Penile Tumescence Test Using RigiScan Plus in the Evaluatio n of Erectile Dysfunction

Erectile Dysfunction after PlasmaKinetic Vaporization of the Prostate: Incidence and Risk factors

Evaluation and Therapeutic Regulation of Erectile Dysfunction with Visual Stimulation Test

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