Assessment of Penile Blood Flow by Duplex Ultrasonography in 44 Men with Normal Erectile Potency in different Phases of Erection

Meuleman, E.J.H.; Bemelmans, Bart L.H.; Asten, W.N.J.C. van; Doesburg, W.H.; Skotnicki, S.H.; Debruyne, F.M.J.

doi:10.1016/s0022-5347(17)37131-8

Cited by 99 publications

(65 citation statements)

References 10 publications

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“…10 Cavernosal arterial¯ow, as well as venous leak may best be measured using color coded duplex sonography. 5 Although duplex sonography does not assess cavernosal oxygenation itself, Knispel and Andresen 11 have shown a good correlation between peak¯ow, as measured by color coded duplex sonography, and maximal oxygen tension. Their cutoff values for peak¯ow velocity and oxygen tension were 25 cmas and 65 mmHg, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…transducer. 5 The peak¯ow in each of the cavernosal arteries was measured after the intracavernosal administration of a vasoactive agent (20 mcg prostaglandin E1 or 1.0 cc trimix containing papavarine, phentolamine and prostaglandin E1). Of note, we do not re-dose the patient with a second intracavernosal injection.…”

Section: Methodsmentioning

confidence: 99%

“…A peak¯ow of less than 30 cm per second after the administration of this vasoactive agent was consistent with arteriogenic impotence. 5 Patients with abnormal duplex ultrasound results comprised group 1 (arteriogenic group).…”

Section: Methodsmentioning

confidence: 99%

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Vasculogenic impotence and cavernosal oxygen tension

Strohl

et al. 2000

Int J Impot Res

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Aims of this study: To determine the associations, if any, of cavernosal oxygen tension with vasculogenic impotence. Materials and Methods: We evaluated penile cavernosal blood gas levels in men with suspected vasculogenic impotence during penile duplex ultrasonography andaor dynamic infusion cavernosometry and cavernosography (DICC). Patients with suspected impotence were evaluated from 1992 ± 1996. Patient ages ranged from 24 ± 75 y (mean 48 y). Eighteen men had arteriogenic impotence diagnosed by abnormal penile duplex ultrasound after injection of a vasoactive agent, and 23 men had venous leakage diagnosed by DICC. Results: Eighteen men with arteriogenic impotence had the following mean blood gas values: pH 7.38 AE 0.01, PCO2 45.50 AE 0.94, PO2 65.17 AE 2.16. Twenty-three men with venogenic (venous leak) impotence had the following mean cavernosal blood gas values: pH 7.41 AE 0.01, PCO2 42.26 AE 0.83, PO2 74.17 AE 2.51. The differences in PO2 were signi®cant (P`0.05). A subgroup of men with severe venous leakage had PO2 values that were similar to the low arterial PO2 values. Conclusion: The low PO2 in patients with arteriogenic impotence, and the subset of men with severe venous leak impotence, support a global concept of low cavernosal PO2 as a mechanism for both arteriogenic and venogenic impotence.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Vasculogenic impotence and cavernosal oxygen tension

Strohl

et al. 2000

Int J Impot Res

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“…21 In addition, reported sampling errors cause the variation to grow wider. 22 In the present study, we have assessed the relationship between carotid and cavernosal values of PSV, EDV and IMT, a novel parameter in the evaluation of atherosclerotic ED. Carotid IMT has been shown in several studies as a non-invasive, reproducible reference method in the evaluation of generalized atherosclerosis.…”

Section: Discussionmentioning

confidence: 99%

Is there a concordance between carotid and penile cavernosal artery intima-media thickness in patients with erectile dysfunction?

et al. 2011

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This study aimed to investigate the predictive accuracy of carotid and cavernosal Doppler ultrasound findings for discriminating patients with vasculogenic erectile dysfunction (ED). Fifty patients with complaints of ED were included. B-mode ultrasound of bilateral carotid arteries were performed and peak systolic velocity (PSV), end-diastolic velocity (EDV) and intima-media thickness (IMT) values were measured. Afterwards, corresponding values of cavernosal arteries were obtained by penile color duplex ultrasonography (P-CDU). Of total 50 patients, 29 (58%) were included in vasculogenic ED group and 21 (42%) in non-vasculogenic ED group according to P-CDU findings. There was a significant difference between groups for cavernosal IMT (P ¼ 0.012) but not for carotid IMT (P ¼ 0.601). When patients were reclassified according to carotid IMT values (IMT of the first group o0.9 mm and the second X0.9 mm), carotid PSV and EDV values were different (P ¼ 0.033 and 0.018, respectively). Cavernosal PSV and EDV displayed no difference (P ¼ 0.816 and 0.123) while cavernosal IMT and percent change of cavernosal caliper were significantly different (P ¼ 0.014 and 0.018). Carotid PSV and EDV successfully mirrored respective measurements in cavernosal artery. However, carotid IMT failed to demonstrate such a correlation. Cavernosal IMT seems promising as an additional tool in the evaluation of cavernosal function.

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“…Owing to the fact that blood¯ow velocities measured in this phase might indicate false positive cavernosal arterial insuf®ciency. 22,23 For this reason, we performed measurements of blood¯ow velocities and penile axial rigidity in different periods of CDU assessment.…”

Section: Discussionmentioning

confidence: 99%

Are normal hemodynamic responses invariably associated with normal penile rigidity and potency?

et al. 2001

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The existence and importance of patients with low penile buckling pressure and normal penile hemodynamic status have been recently recognized. We assessed the ratio of inadequate erection for vaginal penetration (low buckling pressure) in patients with normal penile vascular system proved with penile Doppler ultrasonography. A total of 101 patients with normal penile vascular status were retrospectively scrutinized dependent on penile axial rigidity (buckling pressure). Ninety patients had suf®cient penile axial rigidity ( ! 550 g) whereas in the remaining 11 patients (11%) inadequate penile buckling pressure for vaginal penetration (`550 g) was determined. Penile geometric and mechanical properties should not be overlooked during the evaluation of penile vascular system lest the patient be incorrectly diagnosed as having psychogenic impotence.

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Assessment of Penile Blood Flow by Duplex Ultrasonography in 44 Men with Normal Erectile Potency in different Phases of Erection

Cited by 99 publications

References 10 publications

Vasculogenic impotence and cavernosal oxygen tension

Vasculogenic impotence and cavernosal oxygen tension

Is there a concordance between carotid and penile cavernosal artery intima-media thickness in patients with erectile dysfunction?

Are normal hemodynamic responses invariably associated with normal penile rigidity and potency?

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