New concept parameters of RigiScan in differentiation of vascular erectile dysfunction: Is it a useful test?

Başar, M. Murad; Atan, Ali; Tekdoğan, Ümit Yener

doi:10.1046/j.1442-2042.2001.00398.x

Cited by 27 publications

(24 citation statements)

References 25 publications

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“…Various studies undertaken in different decades revealed that NPTR has an important role in the differentiation of well-known organic impotence from psychogenic impotence but is insufficient in identifying the underlying cause of organic impotence. 18,25,26 Hence, our result that the potential vascular lesion EnD presented in ED patients with normal NPTR support the conclusion in previous literature study.…”

Section: Discussionsupporting

confidence: 92%

“…It is suggested that NPTR recording is recommended when a psychogenic etiology is suggested by the sexual history, and there are no neurovascular risk factors present. 24,25 A man with ED but no obvious risk factors, having a normal NPTR recording with three to five erectile events, lasting more than 10 min with tip rigidity more than 60--70%, can be safely diagnosed with a psychogenic etiology. 18 However, after excluding cardiovascular risks, no statistical differences were found in NPTR parameters between non-EnD and EnD ED in the psychogenic group (P40.05).…”

Section: Discussionmentioning

confidence: 99%

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Abnormal endothelial function in ED patients with normal nocturnal penile tumescence and rigidity: is it the role of psychogenic factors?

Huang

Gao

et al. 2012

Int J Impot Res

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Underlying endothelial dysfunction (EnD) may present in the early stage of ED or psychogenic ED. We retrospectively evaluated 191 ED patients with effective nocturnal penile tumescence and rigidity (NPTR) recording, including detailed medical and psychosexual history, International Index of Erectile Function-5 and vascular parameter. All patients were allocated into psychogenic and organic groups according to the NPTR test. Brachial artery flow-mediated dilation (FMD) was used to diagnose EnD, and ED patients were classified into two groups: non-EnD (FMDX10) and EnD (FMDo10). General and vascular parameters were compared between psychogenic and organic groups, and non-EnD and EnD groups with ED were compared in terms of NPTR parameters. In all, 48.7% and 51.3% patients were diagnosed as psychogenic and organic ED, respectively. 73.1% of the psychogenic patients had EnD and 39.8% organic patients had normal endothelial function. In all parameters, only the FMD value showed significant difference between psychogenic and organic ED groups (8.26±2.57 vs 9.16±2.76, P ¼ 0.020). No statistical difference was founded in NPTR parameters between non-EnD and EnD groups (P40.05). In conclusion, NPTR cannot effectively identify the underlying vasculogenic ED from psychogenic ED. Psychogenic causes may cause or aggravate EnD in these ED patients with normal NPTR.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Abnormal endothelial function in ED patients with normal nocturnal penile tumescence and rigidity: is it the role of psychogenic factors?

Huang

Gao

et al. 2012

Int J Impot Res

View full text Add to dashboard Cite

show abstract

“…Number of events, total events duration (in hours), average rigidity of tip and base, and RAU and TAU were determined. 7 To avoid, or at least minimize the effect of adaptation, patients were randomly divided into two groups, evaluation of NPTR has been extended to four consecutive nights and sildenafil citrate has been administered on a different night in each group.…”

Section: Methodsmentioning

confidence: 99%

Sildenafil citrate significantly improves nocturnal penile erections in sildenafil non-responding patients with psychogenic erectile dysfunction

2004

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“…Thus, though a recent survey suggests that its use as a diagnostic test occurs in only some 3-4% of cases, 2 NPT with RigiScan remains the gold standard in assessing penile rigidity. DDU allows for the evaluation of penile cavernosal blood vessels (Duplex) and blood flow (Doppler) in conjunction with vaso-dilator stimulation.…”

Section: Introductionmentioning

confidence: 99%

“…In the patients with a vascular cause, no difference was found between arterial and veno-occlusive dysfunction with regard to tip tumescence activity unit (TAU), base TAU, tip rigidity activity unit (RAU), base RAU and erection time. 2 A thorough clinical assessment alongside the patient's own description of their erectile status should be sufficient. A study looking at the predictive value of the patients' own subjective assessment of early morning and nocturnal erections and the presence of vascular risk factors and cigarette smoking correlated well with the outcome of RigiScan and PSV (peak systolic velocity) during colour flow duplex Doppler ultrasonography.…”

Section: Introductionmentioning

confidence: 99%

A comparison between portable ultrasound (MIDUS) and nocturnal RigiScan when confirming the diagnosis of vascular organic erectile disorder

et al. 2005

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In recent years, the use of RigiScan and ultrasound to assess erectile dysfunction has fallen from favour. However, in a small minority of specialist cases, where a vascular, neurogenic or psychogenic aetiology requires confirmation, there remains a need for further investigation. To establish if in a preliminary assessment the use of nocturnal RigiScan or male impotence diagnostic ultrasound system (MIDUS) represents best practice as a diagnostic investigation in patients with a history suggestive of vascular organic erectile disorder. Men attending both urological and psychosexual therapy clinics with erectile dysfunction were assessed using a generic assessment schedule. Patients with a history suggestive of vascular erectile disorder were offered the opportunity of dual investigation of their condition. After screening using a provocative RigiScan using visual stimuli that gleaned inconclusive results, patients were offered the chance to enter a study with both nocturnal RigiScan and MIDUS investigation. These were confined for the purposes of this study to RigiScan events, peak systolic flow velocity (PSV) and end-diastolic flow velocity (EDV) from ultrasound examination where an abnormal EDV is defined as in excess of 4.5 cm/s and a normal PSV is variously defined as being greater than 35 cm/s. In all, 38/43 (88%, 95% CI: 76-95%) of men had a nocturnal event exceeding 3 min on the RigiScan investigation. This compares with 17/43 (40%, 95% CI: 26-54%) of men with a normal EDV blood flow of less than 4.5 cm/s (Po0.017) and 32/43 (74%, CI: 60-85%) of men with a normal PSV flow greater than 35 cm/s (NS). Rigiscan and ultrasonography of the cavernosal vessels are of equal usefulness in suspected arterial penile disease although where veno-occlusive disease is suspected, ultrasonography is more specific.

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New concept parameters of RigiScan in differentiation of vascular erectile dysfunction: Is it a useful test?

Abstract: New recording parameters of nocturnal penile tumescence can differentiate organic and psychogenic erectile dysfunction more precisely. However, these recording parameters cannot distinguish subgroups with a vascular cause of erectile dysfunction.

Cited by 27 publications

References 25 publications

Abnormal endothelial function in ED patients with normal nocturnal penile tumescence and rigidity: is it the role of psychogenic factors?

Abnormal endothelial function in ED patients with normal nocturnal penile tumescence and rigidity: is it the role of psychogenic factors?

Sildenafil citrate significantly improves nocturnal penile erections in sildenafil non-responding patients with psychogenic erectile dysfunction

A comparison between portable ultrasound (MIDUS) and nocturnal RigiScan when confirming the diagnosis of vascular organic erectile disorder

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