Buson H, Smiley D, Reinberg Y, Gonzalez R
Department of Urologic Surgery, University of Minnesota Hospital and Clinic, Minneapolis.
J Urol. 1994 Apr;151(4):1059-60. doi: 10.1016/s0022-5347(17)35180-7.
We previously reported the results of the meatal based flap urethroplasty (Mathieu) for distal hypospadias repair. Of 49 patients in whom stents were left indwelling for 2 to 5 days meatal stenosis developed in 1 and there were no fistulas. In view of these good results and to decrease postoperative discomfort from bladder spasms, we performed 37 consecutive meatal based flap repairs without stents. Seven patients (19%) had urinary retention requiring catheterization several hours after surgery, of whom 3 had had a caudal block and 4 a penile block with 0.25% bupivacaine for postoperative pain control. In 5 patients (14%) a urethrocutaneous fistula developed, which required surgical repair. Of the patients with a fistula 2 were also among those who presented with urinary retention and 1 had concomitant meatal stenosis. One child had meatal stenosis only, requiring a meatoplasty after failed dilations. Subsequently, of another 16 children who underwent the Mathieu repair with stents a urethrocutaneous fistula and meatal stenosis developed in 1 (6.2%) and 15 patients had no complications. Overall of 65 patients in whom a stent was used 3 (4.6%) had complications, in contrast with a complication rate of 18.9% in the unstented group, representing a statistically significant difference (p < 0.05). The stent obviates urinary retention, which was unrelated to the type of anesthetic block used, and minimizes the incidence of fistula and stenosis. We conclude that the use of a multiperforated silicone urethral stent is advantageous for the outcome of this operation.
我们之前报道了基于尿道口皮瓣尿道成形术(马蒂厄手术)修复远端尿道下裂的结果。在49例留置支架2至5天的患者中,1例发生尿道口狭窄,无尿瘘形成。鉴于这些良好结果,并为减少膀胱痉挛引起的术后不适,我们连续进行了37例不使用支架的基于尿道口皮瓣修复术。7例患者(19%)术后数小时出现尿潴留,需要导尿,其中3例曾接受骶管阻滞,4例接受0.25%布比卡因阴茎阻滞以控制术后疼痛。5例患者(14%)发生尿道皮肤瘘,需要手术修复。发生瘘的患者中,2例同时存在尿潴留,1例合并尿道口狭窄。1例患儿仅出现尿道口狭窄,扩张失败后需要行尿道口成形术。随后,在另外16例接受带支架马蒂厄修复术的患儿中,1例(6.2%)发生尿道皮肤瘘和尿道口狭窄,15例无并发症。总体而言,65例使用支架的患者中3例(4.6%)出现并发症,而未使用支架组的并发症发生率为18.9%,差异有统计学意义(p<0.05)。支架可避免尿潴留(尿潴留与所使用的麻醉阻滞类型无关),并将瘘和狭窄的发生率降至最低。我们得出结论,使用多孔硅胶尿道支架对该手术的结果有利。