Introduction: The ureteral ostia may not be easily identified in urological endoscopic procedures, leading to an incomplete diagnosis of urinary tract diseases or a predisposition to iatrogenic lesions. The purpose of...Introduction: The ureteral ostia may not be easily identified in urological endoscopic procedures, leading to an incomplete diagnosis of urinary tract diseases or a predisposition to iatrogenic lesions. The purpose of our study is to evaluate the anatomical distribution of ureteralostia in normal bladders and those with thickened walls. Materials and Methods: We dissected 30 vesical-prostate blocks from human cadavers and identified the ostia of the bladder trigone. A computerized morphometric analysis was performed to measure the thickness of the detrusor muscle, the distances between the ureteral ostia themselves and the distances between each ureteral ostium (left—LUO and right—RUO) and the internal urethral ostium (IUO). The angle formed between the IUO and LUO/RUO was also recorded as well as the volume of the prostates. Results: Fifteen bladders with a non-thickened detrusor (6 mm) were identified. The average prostatic volume of the dissected blocks was 23.7 cm3. The distance between ureteral ostia, the distance from IUO to LUO, the distance from IUO to RUO and the angle formed between IUO and LUO/RUO in normal and thickened bladder were, respectively, 1.9 cm/2.2 cm (p = 0.09), 1.6 cm/1.6 cm (p = 0.82), 1.6 cm/1.7 cm (p = 0.79) and 77/91 (p = 0.17). Conclusions: Our study shows that there is no significant difference in the position of bladder ostia in healthy and thickened bladders. We believe that our findings may facilitate locating the ureteral orifices in situations where endoscopic identification is difficult.展开更多
目的探讨应用经尿道双极等离子电切系统治疗膀胱癌的安全性和疗效。方法采用英国Gyrus公司的经尿道双极等离子电切系统行经尿道膀胱肿瘤电切术（transurethral resection of the bladder tumor,TURBT）治疗膀胱癌85例,切割电极切除肿瘤...目的探讨应用经尿道双极等离子电切系统治疗膀胱癌的安全性和疗效。方法采用英国Gyrus公司的经尿道双极等离子电切系统行经尿道膀胱肿瘤电切术（transurethral resection of the bladder tumor,TURBT）治疗膀胱癌85例,切割电极切除肿瘤直达深肌层,同时扩大到电切距肿瘤基底1 cm范围的正常组织,术后定期膀胱内灌注吡柔比星。结果手术时间10~52 min,平均23 min。术中发生闭孔神经反射19例,其中腹膜外穿孔2例。64例随访3~72个月,平均21个月,复发17例（术后6~12个月3例复发,1~2年9例复发,2~5年5例复发）,行1~4次电切8例,膀胱部分切除5例,全膀胱切除4例;死亡2例,其中1例死于心机梗死,另1例死于肿瘤广泛转移。结论双极等离子电切系统行TURBT治疗浅表性膀胱癌是一种安全有效的方法,但仍要防止闭孔神经反射的发生。展开更多
文摘Introduction: The ureteral ostia may not be easily identified in urological endoscopic procedures, leading to an incomplete diagnosis of urinary tract diseases or a predisposition to iatrogenic lesions. The purpose of our study is to evaluate the anatomical distribution of ureteralostia in normal bladders and those with thickened walls. Materials and Methods: We dissected 30 vesical-prostate blocks from human cadavers and identified the ostia of the bladder trigone. A computerized morphometric analysis was performed to measure the thickness of the detrusor muscle, the distances between the ureteral ostia themselves and the distances between each ureteral ostium (left—LUO and right—RUO) and the internal urethral ostium (IUO). The angle formed between the IUO and LUO/RUO was also recorded as well as the volume of the prostates. Results: Fifteen bladders with a non-thickened detrusor (6 mm) were identified. The average prostatic volume of the dissected blocks was 23.7 cm3. The distance between ureteral ostia, the distance from IUO to LUO, the distance from IUO to RUO and the angle formed between IUO and LUO/RUO in normal and thickened bladder were, respectively, 1.9 cm/2.2 cm (p = 0.09), 1.6 cm/1.6 cm (p = 0.82), 1.6 cm/1.7 cm (p = 0.79) and 77/91 (p = 0.17). Conclusions: Our study shows that there is no significant difference in the position of bladder ostia in healthy and thickened bladders. We believe that our findings may facilitate locating the ureteral orifices in situations where endoscopic identification is difficult.
文摘目的探讨应用经尿道双极等离子电切系统治疗膀胱癌的安全性和疗效。方法采用英国Gyrus公司的经尿道双极等离子电切系统行经尿道膀胱肿瘤电切术（transurethral resection of the bladder tumor,TURBT）治疗膀胱癌85例,切割电极切除肿瘤直达深肌层,同时扩大到电切距肿瘤基底1 cm范围的正常组织,术后定期膀胱内灌注吡柔比星。结果手术时间10~52 min,平均23 min。术中发生闭孔神经反射19例,其中腹膜外穿孔2例。64例随访3~72个月,平均21个月,复发17例（术后6~12个月3例复发,1~2年9例复发,2~5年5例复发）,行1~4次电切8例,膀胱部分切除5例,全膀胱切除4例;死亡2例,其中1例死于心机梗死,另1例死于肿瘤广泛转移。结论双极等离子电切系统行TURBT治疗浅表性膀胱癌是一种安全有效的方法,但仍要防止闭孔神经反射的发生。
