The Experts below are selected from a list of 1011 Experts worldwide ranked by ideXlab platform
Seiichi Saito - One of the best experts on this subject based on the ideXlab platform.
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Posterior urethral hemangioma: one of the unknown causes of hematuria and/or Hematospermia.
Urology, 2008Co-Authors: Seiichi SaitoAbstract:Objectives Posterior urethral hemangioma used to be considered extremely rare. However, urologists sometimes encounter patients who present with unknown Hematospermia and/or postejaculation hematuria or posterection hematuria. We evaluated the symptoms, diagnosis, and treatment and reviewed the published data. Methods A total of 20 patients were evaluated for symptoms, diagnosis, histologic findings, and treatment. In addition, the published data were reviewed. Results The typical symptoms were Hematospermia and/or postejaculation hematuria. Of the 20 patients, 6 (30%) had urinary retention with blood clots, as did 6 patients reported in the published studies. Other symptoms included initial hematuria and/or urethral bleeding after erection in 5 patients (25%). The remaining 9 patients (45%) were asymptomatic and posterior urethral hemangioma was discovered by chance at urethroscopy, although the patients had had microscopic hematuria. Typically, cystourethroscopy revealed an approximately 5-mm, solitary sessile lesion that appeared as a varicosities on the membranous urethra between the verumontanum and external sphincter. Endoscopy immediately after ejaculation or erection, together with a reduction in the flow of irrigant, during cystoscopy was helpful in the discovery of the condition. Transrectal power Doppler ultrasonography was also helpful to allow discovery by minimally invasive means. A strong blood flow site in the urethra near the apex of the prostate was observed. The lesion was resected endoscopically, and fulguration was attempted. Histologic examination revealed cavernous hemangioma. Conclusions Posterior urethral hemangioma is more common than the published data suggest. Urologists should consider the possibility of urethral hemangioma when encountering a patient with Hematospermia and/or postejaculation or posterection hematuria.
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posterior urethral hemangioma one of the unknown causes of hematuria and or Hematospermia
Urology, 2008Co-Authors: Seiichi SaitoAbstract:Objectives Posterior urethral hemangioma used to be considered extremely rare. However, urologists sometimes encounter patients who present with unknown Hematospermia and/or postejaculation hematuria or posterection hematuria. We evaluated the symptoms, diagnosis, and treatment and reviewed the published data. Methods A total of 20 patients were evaluated for symptoms, diagnosis, histologic findings, and treatment. In addition, the published data were reviewed. Results The typical symptoms were Hematospermia and/or postejaculation hematuria. Of the 20 patients, 6 (30%) had urinary retention with blood clots, as did 6 patients reported in the published studies. Other symptoms included initial hematuria and/or urethral bleeding after erection in 5 patients (25%). The remaining 9 patients (45%) were asymptomatic and posterior urethral hemangioma was discovered by chance at urethroscopy, although the patients had had microscopic hematuria. Typically, cystourethroscopy revealed an approximately 5-mm, solitary sessile lesion that appeared as a varicosities on the membranous urethra between the verumontanum and external sphincter. Endoscopy immediately after ejaculation or erection, together with a reduction in the flow of irrigant, during cystoscopy was helpful in the discovery of the condition. Transrectal power Doppler ultrasonography was also helpful to allow discovery by minimally invasive means. A strong blood flow site in the urethra near the apex of the prostate was observed. The lesion was resected endoscopically, and fulguration was attempted. Histologic examination revealed cavernous hemangioma. Conclusions Posterior urethral hemangioma is more common than the published data suggest. Urologists should consider the possibility of urethral hemangioma when encountering a patient with Hematospermia and/or postejaculation or posterection hematuria.
Zhiyong Liu - One of the best experts on this subject based on the ideXlab platform.
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prospective trial comparing transrectal ultrasonography and transurethral seminal vesiculoscopy for persistent Hematospermia
International Journal of Urology, 2012Co-Authors: Changyong Xing, Xiaomei Zhou, Lei Xin, Jingchuan Fang, Zhiyong LiuAbstract:Objective: To compare the diagnostic yield of transrectal ultrasonography and transurethral seminal vesiculoscopy in patients with persistent Hematospermia, and to determine the advantages and disadvantages of both modalities. Methods: We prospectively enrolled 106 patients with persistent Hematospermia of mean duration 20.5 months. All patients were evaluated by both transrectal ultrasonography and transurethral seminal vesiculoscopy after excluding definite etiological lesions beyond the reproductive duct system. The diagnostic yield and other technical parameters of both modalities were compared. Results: Final diagnoses were made in 93 patients (87.7%), with transrectal ultrasonography and transurethral seminal vesiculoscopy showing overall diagnostic yields of 45.3% and 74.5%, respectively (P < 0.001). The diagnostic yield of combining transrectal ultrasonography and transurethral seminal vesiculoscopy was significantly higher than that of each modality alone (both P < 0.001). Of the 114 findings of diagnostic value, the most frequent was calculus (47.4%, n = 54), followed by obstruction/stricture (37.7%, n = 43), cyst (8.8%, n = 10), dysplasia (3.5%, n = 4), polyp (1.8%, n = 2) and benign mass (0.9%, n = 1). Transurethral seminal vesiculoscopy showed significant superiority in detecting calculi and obstruction/stricture. Hematospermia disappeared in 95.3% (101/106) of all patients and in 97.6% (83/85) of patients receiving transurethral seminal vesiculoscopy therapy during follow up. No major adverse effects occurred during and after examination. Conclusions: The diagnostic yield of transurethral seminal vesiculoscopy for persistent Hematospermia was significantly superior to that of transrectal ultrasonography, especially in lesions diagnosed with calculi and obstruction/stricture. Combining both modalities might provide extra benefits for patients with persistent Hematospermia.
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Prospective trial comparing transrectal ultrasonography and transurethral seminal vesiculoscopy for persistent Hematospermia.
International journal of urology : official journal of the Japanese Urological Association, 2012Co-Authors: Changyong Xing, Xiaomei Zhou, Lei Xin, Jingchuan Fang, Zhiyong LiuAbstract:Objective: To compare the diagnostic yield of transrectal ultrasonography and transurethral seminal vesiculoscopy in patients with persistent Hematospermia, and to determine the advantages and disadvantages of both modalities. Methods: We prospectively enrolled 106 patients with persistent Hematospermia of mean duration 20.5 months. All patients were evaluated by both transrectal ultrasonography and transurethral seminal vesiculoscopy after excluding definite etiological lesions beyond the reproductive duct system. The diagnostic yield and other technical parameters of both modalities were compared. Results: Final diagnoses were made in 93 patients (87.7%), with transrectal ultrasonography and transurethral seminal vesiculoscopy showing overall diagnostic yields of 45.3% and 74.5%, respectively (P
Liqiang Guo - One of the best experts on this subject based on the ideXlab platform.
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Real-time transrectal ultrasound-guided seminal vesiculoscopy for the treatment of patients with persistent Hematospermia: A single-center, prospective, observational study
Asian journal of andrology, 2020Co-Authors: Xue-sheng Wang, Guangfeng Shao, Wendong Sun, Xiulin Zhang, Zhiying Xiao, Mingzhen Yuan, Liqiang GuoAbstract:This study aimed to describe endoscopic anatomy of the seminal tract and summarize our experience of transutricular seminal vesiculoscopy (TSV) guided by real-time transrectal ultrasonography (TRUS) in managing persistent Hematospermia. A total of 281 consecutive patients with persistent Hematospermia who underwent TSV with or without real-time TRUS were enrolled in this single-center, prospective, observational study. The median follow-up period was 36.5 (range: 8.0-97.5) months. TSV was successfully performed in 272 (96.8%) patients. The approach of a 4.5/6 F rigid vesiculoscope entering the seminal tract was categorized into four types on the basis of endoscopic presentation of the ejaculatory duct orifice and verumontanum. Seven (2.6%), 74 (27.2%), 64 (23.5%), and 127 (46.7%) patients had Types I (through the ejaculatory duct in the urethra), II (through the ejaculatory duct in the prostatic utricle), III (transutricular fenestration through a thin membrane), and IV (real-time transrectal ultrasound-guided transutricular fenestration) approach, respectively. In patients who successfully underwent surgery, bleeding occurred in the seminal vesicle in 249 (91.5%) patients. Seminal vesiculitis, calculus in the prostatic utricle, calculus in the ejaculatory duct, calculus in the seminal vesicle, prostatic utricle cysts, and seminal vesicle cysts were observed in 213 (78.3%), 96 (35.3%), 22 (8.1%), 81 (29.8%), 25 (9.2%), and 11 (4.0%) patients, respectively. Hematospermia was alleviated or disappeared in 244 (89.7%) patients 12 months after surgery. Fifteen patients had recurrent Hematospermia, and the median time to recurrence was 7.5 (range: 2.0-18.5) months. TSV guided by TRUS may contribute to successful postoperative outcomes in managing persistent Hematospermia.
Changyong Xing - One of the best experts on this subject based on the ideXlab platform.
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prospective trial comparing transrectal ultrasonography and transurethral seminal vesiculoscopy for persistent Hematospermia
International Journal of Urology, 2012Co-Authors: Changyong Xing, Xiaomei Zhou, Lei Xin, Jingchuan Fang, Zhiyong LiuAbstract:Objective: To compare the diagnostic yield of transrectal ultrasonography and transurethral seminal vesiculoscopy in patients with persistent Hematospermia, and to determine the advantages and disadvantages of both modalities. Methods: We prospectively enrolled 106 patients with persistent Hematospermia of mean duration 20.5 months. All patients were evaluated by both transrectal ultrasonography and transurethral seminal vesiculoscopy after excluding definite etiological lesions beyond the reproductive duct system. The diagnostic yield and other technical parameters of both modalities were compared. Results: Final diagnoses were made in 93 patients (87.7%), with transrectal ultrasonography and transurethral seminal vesiculoscopy showing overall diagnostic yields of 45.3% and 74.5%, respectively (P < 0.001). The diagnostic yield of combining transrectal ultrasonography and transurethral seminal vesiculoscopy was significantly higher than that of each modality alone (both P < 0.001). Of the 114 findings of diagnostic value, the most frequent was calculus (47.4%, n = 54), followed by obstruction/stricture (37.7%, n = 43), cyst (8.8%, n = 10), dysplasia (3.5%, n = 4), polyp (1.8%, n = 2) and benign mass (0.9%, n = 1). Transurethral seminal vesiculoscopy showed significant superiority in detecting calculi and obstruction/stricture. Hematospermia disappeared in 95.3% (101/106) of all patients and in 97.6% (83/85) of patients receiving transurethral seminal vesiculoscopy therapy during follow up. No major adverse effects occurred during and after examination. Conclusions: The diagnostic yield of transurethral seminal vesiculoscopy for persistent Hematospermia was significantly superior to that of transrectal ultrasonography, especially in lesions diagnosed with calculi and obstruction/stricture. Combining both modalities might provide extra benefits for patients with persistent Hematospermia.
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Prospective trial comparing transrectal ultrasonography and transurethral seminal vesiculoscopy for persistent Hematospermia.
International journal of urology : official journal of the Japanese Urological Association, 2012Co-Authors: Changyong Xing, Xiaomei Zhou, Lei Xin, Jingchuan Fang, Zhiyong LiuAbstract:Objective: To compare the diagnostic yield of transrectal ultrasonography and transurethral seminal vesiculoscopy in patients with persistent Hematospermia, and to determine the advantages and disadvantages of both modalities. Methods: We prospectively enrolled 106 patients with persistent Hematospermia of mean duration 20.5 months. All patients were evaluated by both transrectal ultrasonography and transurethral seminal vesiculoscopy after excluding definite etiological lesions beyond the reproductive duct system. The diagnostic yield and other technical parameters of both modalities were compared. Results: Final diagnoses were made in 93 patients (87.7%), with transrectal ultrasonography and transurethral seminal vesiculoscopy showing overall diagnostic yields of 45.3% and 74.5%, respectively (P
Xue-sheng Wang - One of the best experts on this subject based on the ideXlab platform.
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Real-time transrectal ultrasound-guided seminal vesiculoscopy for the treatment of patients with persistent Hematospermia: A single-center, prospective, observational study
Asian journal of andrology, 2020Co-Authors: Xue-sheng Wang, Guangfeng Shao, Wendong Sun, Xiulin Zhang, Zhiying Xiao, Mingzhen Yuan, Liqiang GuoAbstract:This study aimed to describe endoscopic anatomy of the seminal tract and summarize our experience of transutricular seminal vesiculoscopy (TSV) guided by real-time transrectal ultrasonography (TRUS) in managing persistent Hematospermia. A total of 281 consecutive patients with persistent Hematospermia who underwent TSV with or without real-time TRUS were enrolled in this single-center, prospective, observational study. The median follow-up period was 36.5 (range: 8.0-97.5) months. TSV was successfully performed in 272 (96.8%) patients. The approach of a 4.5/6 F rigid vesiculoscope entering the seminal tract was categorized into four types on the basis of endoscopic presentation of the ejaculatory duct orifice and verumontanum. Seven (2.6%), 74 (27.2%), 64 (23.5%), and 127 (46.7%) patients had Types I (through the ejaculatory duct in the urethra), II (through the ejaculatory duct in the prostatic utricle), III (transutricular fenestration through a thin membrane), and IV (real-time transrectal ultrasound-guided transutricular fenestration) approach, respectively. In patients who successfully underwent surgery, bleeding occurred in the seminal vesicle in 249 (91.5%) patients. Seminal vesiculitis, calculus in the prostatic utricle, calculus in the ejaculatory duct, calculus in the seminal vesicle, prostatic utricle cysts, and seminal vesicle cysts were observed in 213 (78.3%), 96 (35.3%), 22 (8.1%), 81 (29.8%), 25 (9.2%), and 11 (4.0%) patients, respectively. Hematospermia was alleviated or disappeared in 244 (89.7%) patients 12 months after surgery. Fifteen patients had recurrent Hematospermia, and the median time to recurrence was 7.5 (range: 2.0-18.5) months. TSV guided by TRUS may contribute to successful postoperative outcomes in managing persistent Hematospermia.