Electrical activity of the corpus cavernosum in patients with corporal veno‐occlusive dysfunction

Kayıgίl, Önder; Atahan, Özcan; Metin, Ahmet

doi:10.1046/j.1464-410x.1996.86017.x

Cited by 26 publications

(27 citation statements)

References 2 publications

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“…We used strict selection criteria and found especially subjectively high success rates with a mean follow–up of 28 months (range 4–42) and observed minimal decreases in success rates with time. We know that electromyographic abnormalities were observed more frequently in patients with COD [8]. We also observed high CO and autonomic dysfunction rates in young patients [9].…”

Section: Discussionmentioning

confidence: 91%

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Deep Dorsal Vein Arterialization in Pure Cavernoocclusive Dysfunction

Kayıgίl

Ahmed²,

Metin³

2000

Eur Urol

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Section: Discussionmentioning

confidence: 91%

“…The speed of the thermowriter paper was 5 mm/s. Measurement of the electrical activity of corpus cavernosum was done for 10 min using coaxial electrodes during the flaccid state and after intracavernous papaverine (60 mg) injection [8]. Our maximum intracavernous papaverine dose was 120 mg.…”

Section: Methodsmentioning

confidence: 99%

Deep Dorsal Vein Arterialization in Pure Cavernoocclusive Dysfunction

Kayıgίl

Ahmed²,

Metin³

2000

Eur Urol

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“…C¸olakoglu et al 17 likewise considered that cavernosometry can give rise to false-positive readings in patients with intrinsic cavernous muscle damage, only detectable by CC-EMG. Kayigil et al 18 in turn compared the penile Doppler ultrasound findings, cavernosometry, and CC-EMG. These authors showed that subjects with venous leakage present penile arterial insufficiency or persistence of the potentials of the corpora cavernosa in the CC-EMG recordings.…”

Section: Inferential Statisticsmentioning

confidence: 99%

“…This lack of relaxation may be due to anxiety-induced elevation of the sympathetic tone. 18 In another five cases, the lack of erectile response would be of a mixed cause: lack of erectile tissue relaxation and arterial insufficiency.…”

mentioning

confidence: 98%

Usefulness of electromyography of the cavernous corpora (CC EMG) in the diagnosis of arterial erectile dysfunction

et al. 2012

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Electromyography (EMG) of the corpora cavernosa (CC-EMG) is able to record the activity of the erectile tissue during erection, and thus has been used as a diagnostic technique in patients with erectile dysfunction (ED). The present study examines the usefulness of the technique in the diagnosis of arterial ED. A cross-sectional study was made of 35 males with a mean age of 48.5 years (s.d. 11.34), referred to our center with ED for 41 year. The patients were subjected to CC-EMG and a penile Doppler ultrasound study following the injection of 20 mg of prostaglandin E1 (PGE1). The patients were divided into three groups according to their response to the intracavernous injection of PGE1: Group 1 (adequate erection and reduction/ suppression of EMG activity); Group 2 (insufficient erection and persistence of EMG activity); and Group 3 (insufficient erection and reduction/suppression of EMG activity). Patient classification according to response to the intracavernous injection of PGE1 was as follows: Group 1: six patients (17%), Group 2: 18 patients (51%), and Group 3: 11 patients (31%). Patients diagnosed with arterial insufficiency according to Doppler ultrasound (systolic arterial peak velocity o30 mm s À1 in both arteries) were significantly older than those without such damage (54.5 versus 41.8 years, respectively; s.d. 11.12). The patients in Group 3 showed a significantly lower maximum systolic velocity in both arteries than the subjects belonging to Group 2. Likewise, a statistically significant relationship was observed between the diagnosis of arterial insufficiency and patient classification in Group 3. The confirmation of insufficient erection associated with reduction/suppression of EMG activity showed a sensitivity of 66.7% (confidence interval between 50 and 84%) and a specificity of 92.9% (confidence interval between 84 and 100%) in the diagnosis of arterial ED. Owing to the high specificity of CC-EMG response to the injection of PGE1, this test is considered useful as a screening technique in the diagnosis of arterial ED.

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“…On the other hand, CC-EMG gives information about cavernosal smooth muscle tone, the relaxation ability of cavernosal muscle, or the existence of autonomic dysfunction [22][23][24].…”

confidence: 99%

Penile revascularization in vasculogenic erectile dysfunction (ED): long‐term follow‐up

Kayıgίl¹,

Okulu²,

Aldemir³

et al. 2011

BJU International

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Study Type – Therapy (case series)Level of Evidence 4What’s known on the subject? and What does the study add?This study reflects the second largest series of revascularization operations performed in different etiologic and risk groups with the longest follow up. Beyond that this is the only study in which CC‐EMG techniques were used preoperatively to exclude some patients and to predict postoperative success in penile revascularization.OBJECTIVE• To determine the overall long‐term success of penile revascularization surgery in the treatment of vasculogenic erectile dysfunction (ED) and also to investigate the effect of risk factors on the results of a modified Furlow–Fisher technique.PATIENTS AND METHODS• Between 1999 and 2010, 125 men with a mean (sd, range) age of 43.2 (11.3, 23–69) years underwent penile revascularization surgery. In all, 110 men completed the long‐term follow‐up with a mean follow‐up of 73.2 months.• Diagnostic evaluations, penile colour Doppler ultrasonography, corpus cavernosum electromyography, and cavernosometry, were performed in all the men before surgery.• The efficacy of the surgery was assessed as improvement or failure according to the change in the five‐item version of the International Index of Erectile Function (IIEF‐5). A ≥5 point increase in the IIEF‐5 score during the latest patient visit after surgery compared with that before surgery was regarded as improvement (surgical success).RESULTS• The mean (sd) IIEF‐5 score was 7.3 (3.2) before surgery and at the end of the follow‐up periodit was 16.8 (3.1).• The success rates were 81.8% at 3 months, 77.2% at 1 year, 70% at 2 years, 66.3% at 3 years and 63.6% at 5 years after surgery in the men who achieved a no‐ED threshold score of >26 in the IIEF‐15.• The success rate was the highest in the men with no risk factors (92.8%).• Seven patients (6.36%) showed signs of glans hypervascularization as a major complication.CONCLUSIONS• Penile revascularization surgery has not been widely used by urologists probably due to the technical difficulties and the use of phosphodiesterase type 5 inhibitors.• However, with reported high rates of noncompliance or failure of oral pharmacotherapy it seems likely that this surgery will become more popular in the near future.

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Electrical activity of the corpus cavernosum in patients with corporal veno‐occlusive dysfunction

Abstract: The pattern of discoordination diagnosed by electromyography after injection with papaverine may explain some aspects of VOD and highlights the importance of performing electromyography of the corpus cavernosum in the diagnostic evaluation of VOD.

Cited by 26 publications

References 2 publications

Deep Dorsal Vein Arterialization in Pure Cavernoocclusive Dysfunction

Deep Dorsal Vein Arterialization in Pure Cavernoocclusive Dysfunction

Usefulness of electromyography of the cavernous corpora (CC EMG) in the diagnosis of arterial erectile dysfunction

Penile revascularization in vasculogenic erectile dysfunction (ED): long‐term follow‐up

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