Kim Byung Moon, Park Sung Il
Department of Diagnostic Radiology, Kangbuk Samsung Hospital, Sungkyunkwan University, Seoul, Republic of Korea.
Abdom Imaging. 2008 Mar-Apr;33(2):237-40. doi: 10.1007/s00261-007-9233-1.
To evaluate the efficacy of antegrade insertion of the ureteric stent using pull-through technique in tight ureteric stricture that a guide-wire traversed, but a 5-F catheter could not.
Seven patients (M:F = 2:5, mean age 56 years) who underwent antegrade ureteric stent insertion using pull-through technique due to tight ureteric stricture were retrospectively evaluated. The strictures were due to impacted ureter stone (n = 3), metastasis from rectal cancer (n = 1), and idiopathic ureter stricture (n = 3). After failing to traverse a 5-F catheter through the stricture along the guide-wire, a 7-F introducer sheath was inserted through the urethra. The distal end of the guide-wire was snared and retrieved through the urethral introducer sheath. Then using pull-through technique, antegrade ureteric stent insertion was performed.
Double-J ureteric stent was successfully placed in all seven patients using the pull-through technique. Complications included abdominal/flank pain (n = 7), gross hematuria (n = 5) and elevated blood pressure (n = 1). All complications were relieved within 3 days after the procedure with conservative treatment.
Antegrade double-J ureteric stent insertion using the pull-through technique is a safe and useful method, which can be used in tight ureteric strictures, where a ureteric stent cannot follow the passed guide wire.
评估在导丝能够通过但5F导管无法通过的输尿管严重狭窄中,采用拉出技术顺行插入输尿管支架的疗效。
回顾性评估7例因输尿管严重狭窄而采用拉出技术进行顺行输尿管支架置入术的患者(男∶女 = 2∶5,平均年龄56岁)。狭窄原因包括输尿管结石嵌顿(3例)、直肠癌转移(1例)和特发性输尿管狭窄(3例)。在沿导丝未能将5F导管通过狭窄部位后,经尿道插入7F导入鞘。将导丝远端圈套并经尿道导入鞘取出。然后采用拉出技术进行顺行输尿管支架置入。
采用拉出技术,所有7例患者均成功置入双J型输尿管支架。并发症包括腹部/侧腹疼痛(7例)、肉眼血尿(5例)和血压升高(1例)。所有并发症经保守治疗后在术后3天内缓解。
采用拉出技术顺行置入双J型输尿管支架是一种安全有效的方法,可用于输尿管严重狭窄且输尿管支架无法沿已通过的导丝跟进的情况。