The mini-sling procedure is a widely used, minimally invasive treatment for stress urinary incontinence. While bladder perforation and stone formation over the mesh is not an expected complication of the mini-sling procedure, in this case, we report on the management of bladder calculi formed over the mesh, which was passed through the bladder while applying the mini-sling procedure, and was eventually removed using holmium laser. Performing cystoscopy in patients with irritative and obstructive symptoms after the sling procedure will help confirm bladder perforation, and an endoscopic approach using holmium laser is an effective treatment.
IntroductionStress urinary incontinence (SUI) is a common health problem. Conservative techniques, as well as pharmacological and surgical approaches, are used in the treatment of SUI.
1The aim of surgery is to correct the deficient urethral closure and to prevent incontinence.Ulmsten et al described a minimally invasive technique, a tension-free vaginal tape (TVT) for SUI, in 1996 and it has become the gold standard procedure.2 In 2001, Delorme et al described the transobturator tape implantation (TOT) method to avoid the risk of bladder and bowel perforation and major vascular injuries that can occur with TVT; 3 however, similar complications were observed.1 In 2006, a thirdgeneration of midurethral tapes -known as single-incision mini-slings -was introduced to reduce complications such as bladder perforation.1 The mini-sling procedure is a widely used, minimally invasive treatment for SUI; there are only a few reports on its complications. 4 Bladder perforation and stone formation over the mesh are not expected complications of mini-sling procedures. Further, the technique of removing an eroded tape from the bladder remains controversial. 6 In this case, we report on the management of bladder calculi formed over the mesh, which was passed through the bladder while applying the mini-sling procedure, and removed using holmium laser.
Case reportA 46-year-old woman was admitted to our urology clinic for pelvic pain, dysuria, recurrent urinary tract infections, urinary frequency, and urgency. She had a history of stress urinary incontinence, which had been treated with a minisling procedure using a needleless device. The procedure had been performed at a different hospital four months prior and her complaints began after the procedure. Her urine examination demonstrated pyuria and microscopic hematuria. Extended-spectrum β-lactamase-producing (ESBL) Escherichia coli was detected in her urine culture and appropriate antibiotherapy was given. A 25 x 15 mm opacity at bony pelvis was observed on her plain X-ray radiography of the abdomen and a 3 x 2 cm bladder stone was seen on ultrasound (Fig. 1). With these findings, cystoscopy was performed under spinal anesthesia. A stone surrounding the polypropylene mesh at the right base of the bladder wall was observed. Stone over the mesh was fragmented using both holmium-YAG laser (Sphinx ® LISA laser, 80 W, 2120 nm, 0.5-4.5 J) an...