844 Endoscopy of the vas deference – a new diagnostic and therapeutic tool in andrology

Trottmann, Matthias; Becker, A.J.; Liedl, B.; Stief, Christian G.; Graw, Michael; Braun, Christian; Kölle, S.

doi:10.1016/s1569-9056(13)61323-8

Cited by 3 publications

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“…Furthermore, flexible vesiculoscopy would greatly improve manipulation during surgery, improve the view of the surgeon, and make it easier to detect minor lesions in smaller cavities in seminal vesicle and even in the vas deferens. 10 In addition, techniques that improve the safety of this surgery should be studied, especially in monitoring the pressure of irrigation, allowing stable irrigation in the seminal tract. Finally, it should be emphasized that hemospermia in most patients is caused by benign and self-limited diseases.…”

Section: Discussionmentioning

confidence: 99%

Transurethral seminal vesiculoscopy for recurrent hemospermia: experience from 419 cases

et al. 2018

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We summarized our experience in transurethral seminal vesiculoscopy (TSV) for recurrent hemospermia by introducing surgical techniques, intraoperative findings, and treatment outcomes. TSV was performed in 419 patients with an initial diagnosis of persistent hemospermia at Shanghai Changhai Hospital (Shanghai, China) from May 2007 to November 2015. TSV was successfully performed in 381 cases (90.9%). Hemospermia was alleviated or disappeared in 324 (85.0%) patients by 3 months after surgery. Common intraoperative manifestations were bleeding, obstruction or stenosis, mucosal lesions, and calculus. Endoscopic presentation of the ejaculatory duct orifice and the verumontanum was categorized into four types, including 8 (1.9%), 32 (7.6%), 341 (81.4%), and 38 (9.1%) cases in Types A, B, C, and D, respectively. TSV is an effective and safe procedure in the management of seminal tract disorders. This study may help other surgeons to become familiar with and improve this procedure. However, further multicentric clinical trials are warranted to validate these findings.

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Section: Discussionmentioning

confidence: 99%

Transurethral seminal vesiculoscopy for recurrent hemospermia: experience from 419 cases

et al. 2018

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“…Based on the demanding of above clinical needs in andrology, Trottmann et al 2 at Ludwig-Maximilians University, Munich, Germany established vasoscopy in the seminal duct using a new prototype of a microendoscope. For the first time, they reported a preclinical randomized study at the TwentyEighth Annual EAU Congress in Milan on 15-19 March 2013.…”

Section: Uring the Past Decade Endourologymentioning

confidence: 99%

Newly developed techniques in andrology: endoscopy of the vas deference and a new imaging technique for in situ localization of vital spermatozoa

Wang¹

2013

Asian J Androl

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D uring the past decade, endourologyrepresents the most advanced technology in urology which has provided minimal invasive diagnostic and therapeutic tool for patients with urology diseases. However, because of the much smaller lumen of genital tract, endoscopic andrology remained a dream for andrologists until the first clinical application of vesiculoscopy in laser lithotripsy of seminal vesicle stones in 2006. Lately, Dr Trottmann at Ludwig-Maximilians University, Germany, for the first time established vasoscopy in the seminal duct using a new prototype of a microendoscope and also applied a new imaging technique for in situ localization of vital spermatozoa. These newly developed techniques will greatly speed up the clinical practice of endoandrology.With the development of modern science and technology, there are emerging and promising diagnostic and therapeutic tools for male fertility problems. Transurethral seminal vesiculoscopy is one of the advanced techniques, which has been proved safe and effective in the diagnosis and treatment of ejaculatory duct obstruction, seminal vesicle stones and refractory hemospermia. 1 However, to date, the endoscopy of the vas deference has not yet been achieved because of the small lumen of the seminal duct. As for nonobstructive azoospermia and surgically failed obstructive azoospermia, testicular sperm extraction (TESE) or microsurgical TESE is still the main option for assistant reproduction. The blindly extracted sperms still need to verify their viability ex vivo for the use in intracytoplasmic sperm injection. Up to now, there is no imaging technique in the testis which allows the detection of vital spermatozoa, therefore, to improve retrieval rate for the patients undergoing TESE.Based on the demanding of above clinical needs in andrology, Trottmann et al. 2 at Ludwig-Maximilians University, Munich, Germany established vasoscopy in the seminal duct using a new prototype of a microendoscope. For the first time, they reported a preclinical randomized study at the TwentyEighth Annual EAU Congress in Milan on 15-19 March 2013. The vas dereferences of transsexual men were investigated ex vivo after surgical removal. In a second step, the vas dereferences of men within 24-48 h after death were investigated in situ. For the experiments, a semirigid microendoscope of 0.6 mm outer diameter offering the possibility to insert 0.4 mm thick tools and with integrated fiberoptics (0.9 mm, 10 000 pixels) and a depth of field from 3 to 20 mm was used. After surgical removal, antegrade and retrograde views of the inner lumen of the vas deference were achieved. Using a working channel, a biopsy forceps and a laser fiber were introduced into the inner lumen allowing obtaining probe material and to close or open the lumen by coagulation and vaporization, respectively. The in situ investigations showed that transurethral endoscopy of the vas deference provided good images of the inner surface of the seminal duct up to the vesicular gland.As an emerging optical imaging technology, pro...

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Intraluminal occlusion of the seminal duct by laser and Histoacryl: Two non-invasive alternatives for vasectomy

et al. 2014

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844 Endoscopy of the vas deference – a new diagnostic and therapeutic tool in andrology

Cited by 3 publications

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Transurethral seminal vesiculoscopy for recurrent hemospermia: experience from 419 cases

Transurethral seminal vesiculoscopy for recurrent hemospermia: experience from 419 cases

Newly developed techniques in andrology: endoscopy of the vas deference and a new imaging technique for in situ localization of vital spermatozoa

Intraluminal occlusion of the seminal duct by laser and Histoacryl: Two non-invasive alternatives for vasectomy

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