Successful treatment of aspermia secondary to obstruction of ejaculatory duct

Dunetz, Gary N.; Krane, Robert J.

doi:10.1016/0090-4295(86)90334-1

Cited by 14 publications

(5 citation statements)

References 5 publications

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“…Les publications retrouvent toutes une amelioration du spermogramme apr@s traitement par section endoscopique, mais la plupart des etudes portent sur des petites sOdes ne comportant que tr~s peu de patients [2,6,20,21,24], Les plus grandes series retrouvent une amelioration du spermogramme dans 50 a 70% des cas et un taux de grossesses (sansAMP) de 20 a 30% [9,16,18,23].…”

Section: Technique Op~ratoire Et Resultatsunclassified

Obstructions des canaux éjaculateurs: diagnostic et traitements

Wagner

2005

Androl.

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Section: Technique Op~ratoire Et Resultatsunclassified

Obstructions des canaux éjaculateurs: diagnostic et traitements

Wagner

2005

Androl.

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“…In letteratura non esistono metanalisi o studi prospettici randomizzati (con livello di evidenza 1a o 1b) che abbiano valutato i risultati della TURED. Gli studi della letteratura sono soprattutto retrospettivi, revisioni di altri studi e case report (47–51). Dall'estrapolazione dei risultati di 18 studi (274 pazienti studiati e 220 TURED eseguite) si osserva un miglioramento dei parametri seminali in 144 pazienti (65%) e una gravidanza naturale in 61 pazienti (28%) (52).…”

Section: Ricanalizzazioni Delle Vie Seminali Prossimali E Distaliunclassified

Surgery of male infertility: An update

et al. 2014

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Surgery for male infertility includes three main areas: varicocele surgery, recanalization of seminal tract, sperm retrieval.Varicocele treatment in infertily is still controversial. Recent scientific evidence appears to demonstrate that in selected cases varicocele treatment is beneficial in improving semen parameters and pregnancy rate. The key for the success of treatment seems to be a correct indication. It is our opinion that varicocele should be treated in presence of abnormal semen parameters, when clinically significant, and in adolescents with atrophy of the affected testis. So far, no specific technique, either surgical, microsurgical or sclerotherapic, can be considered the gold standard. Good results in our hands have been obtained with the microsurgical lymphatic sparing high ligation of internal spermatic vein.Innovations in surgery for seminal tract obstructions include the new tubular invagination techniques for epididimovasostomy, which showed excellent results with a simplified and time-saving microsurgical approach. In distal obstructions, a new transperineal ultrasound-guided approach has been proposed for the diagnostic work-up and treatment. Advantages of this technique and of the TURED must be balanced with those of immediate sperm retrieval for ART.In sperm retrieval, microTESE represents the most important surgical evolution in non-obstructive azoospermia. We have recently proposed a new stepwise approach starting with a minimal equatorial incision for conventional testicular biopsy which is extended to perform microTESE only when no sperm is retrieved. In this way microTESE is offered only to patients who really need it. Another field of innovation is sperm retrieval for ICSI in patients with Klinefelter Syndrome.

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“…The vas deferens (VD) carries the spermatozoa from the epididymis to the urethra through the ejaculatory ducts. Azoospermia may occur as a result of vasal obstruction, congenital absence of the vasa deferentia, or after vasectomy (Jarow et al, 1985;Dunety & Krane, 1986;Goldstein & Schlossberg, 1988;Belker, 1990). Recent studies in dogs *Correspondence: Ahmed Shafik, MD, PhD,2 Talaat Harb Street,Cairo,Egypt. have demonstrated that the vasal musculature possesses an electrical activity in the form of slow waves or pacesetter potentials (Pe Fig.…”

Section: Introductionmentioning

confidence: 99%

Electrovasography in normal and vasectomized men before and after vasectomy reversal

Shafik

1996

Int J of Andrology

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The electrical pattern of the vas deferens, or electrovasogram (EVG), was studied in 22 healthy volunteers, 20 vasectomy subjects and 18 individuals after vasectomy reversal. Their mean ages were 38.8 +/- 7.3, 44.3 +/- 7.9 and 58.6 +/- 6.6 years, respectively. Two electrodes were applied to the posterior aspect of the upper part of the scrotum. During the operation of vasectomy reversal, an electrode was applied directly to each of the two vasal segments before and immediately after vasovasostomy. The electrical activity and intravasal pressure were measured. In normal subjects, slow waves or pacesetter potentials (PP) were recorded. They had identical frequency and a regular rhythm from the two electrodes and were consistent in the individual subject on all test days. PP were followed randomly by bursts of action potentials (AP). In vasectomized subjects, PP from the proximal vasal segment exhibited an irregular rhythm (vasoarrhythmia). During operation for vasectomy reversal, the proximal vasal segment recorded vasoarrhythmia whereas the distal segment revealed a silent EVG. Intravasal pressure was normal (p > 0.05) in the distal segment but high (p < 0.05) in the proximal segment. EVG performed 1-6 years after vasectomy reversal showed a normal pattern in four subjects and diminished frequency and amplitude in three. These seven subjects had impregnated their wives and had an obstructive interval of < 3 years. The 11 subjects who did not produce a pregnancy had a vasoarrhythmic EVG and an obstructive interval of > 3 years. In conclusion, an EVG could be identified for normal subjects. Vasectomy resulted in a vasoarrhythmic EVG pattern which proved to be correctable by vasectomy reversal if the obstructive interval was short.

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Successful treatment of aspermia secondary to obstruction of ejaculatory duct

Cited by 14 publications

References 5 publications

Obstructions des canaux éjaculateurs: diagnostic et traitements

Obstructions des canaux éjaculateurs: diagnostic et traitements

Surgery of male infertility: An update

Electrovasography in normal and vasectomized men before and after vasectomy reversal

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