Comparison of postoperative urinary complications in laparoscopic-assisted anorectoplasty versus posterior sagittal anorectoplasty for anorectal malformation with rectourethral fistula

BACKGROUND

Long-term urinary outcomes after anorectal malformation (ARM) repair are affected by surgical approach and sacral anomalies. This study aimed to compare laparoscopic-assisted anorectoplasty (LAARP) and posterior sagittal anorectoplasty (PSARP) in terms of urinary complications.

METHODS

Between 2001 and 2022, 45 patients were treated with LAARP or PSARP. The rectourethral fistula and inflow angle between the fistula and rectum was confirmed by preoperative colonography. The incidence of urinary complications and treatment were compared between the two groups.

RESULTS

Four patients (14%) had remnant fistula and five patients (17%) had neurogenic bladder dysfunction in LAARP group, while three patients (18%) had urethral injury in PSARP group. All patients with remnant fistula were asymptomatic and followed without treatment. The incidence of remnant fistula improved between earlier decade and later decade. In all cases with urethral injury, suture repair was performed and no postoperative leakage was noted. All five patients with neurogenic bladder dysfunction had spine abnormalities that required clean intermittent catheterization (CIC) and two were free from CIC finally.

CONCLUSIONS

It is important to check inflow angle preoperatively to prevent remnant fistula. For PSARP, meticulous dissection is required when separating fistula from urethra because they create common wall. The most contributing factor to neurogenic bladder is sacral anomalies. Preoperative evaluation and postoperative urinary drainage are important.

Correlation between congenital pelvic floor muscle development assessed by magnetic resonance imaging and postoperative defecation

OBJECTIVE

Children with congenital anorectal malformation (CAM) experience challenges with defecation. This study aims to assess defecation in preschool-age children with CAM and to evaluate the correlation between pelvic floor muscle developed assessed by magnetic resonance imaging (MRI) and postoperative defecation.

METHODS

We collected clinical data and MRI results from 89 male children with CAM. The bowel function scores for children with Perineal (cutaneous) fistula, Rectourethral fistula(Prostatic or Bulbar), and Rectovesical fistula were computed. MRI scans were subjected to image analysis of the striated muscle complex (SMC). The association between pelvic floor muscle score and bowel function score was examined using the Cochran-Armitage Trend Test.

RESULTS

We observed that 77.4% of the SMC scores by MRI for Perineal fistula were good. The Rectourethral fistula SMC score was 40.6% for moderate and 59.4% for poor. The SMC score for Rectovesical fistula was 100% for moderate. Furthermore, 77.4% of patients with Perineal fistula had bowel function scores (BFS) ≥ 17 points. Among those with Rectourethral fistula and Rectovesical fistula, 12.5% and 0 had BFS ≥ 17 points, respectively. An analysis of muscle development and bowel function in patients with Rectovesical fistula, Rectourethral fistula, and Perineal fistula revealed a correlation between SMC development and BFS. Subgroup analysis showed that the Perineal fistula had statistical significance; however, the Rectourethral fistula and Rectovesical fistula were not statistically significant.

CONCLUSION

A correlation exists between pelvic floor muscle development and postoperative defecation in children with Perineal fistula.

Eighteen years of experience in laparoscopic implantation of artificial urinary sphincter in women with intrinsic sphincter deficiency

INTRODUCTION AND OBJECTIVES

Artificial urinary sphincter (AUS) is a treatment option for women with stress urinary incontinence (SUI) after failure of previous surgery or as a primary procedure in severe intrinsic sphincter deficiency (ISD). The aim of the study was to assess the long-term efficacy and risk factors for surgical revision and definitive explantation of AUS laparoscopic implantation in female patients.

METHODS

A retrospective review of all women submitted to AUS implantation between April 2005 and March 2023 was conducted. The AUS was implanted via transperitoneal laparoscopic approach, by two experienced surgeons. The primary endpoint was postoperative continence. Continence was defined as no leakage and no pad usage or leakage and/or pad usage with no impact on social life and failure as leakage and/or pad usage impacting social life. As secondary outcomes, clinical predictive factors for AUS revision and definitive explantation were evaluated.

RESULTS

In the last 18 years, females with a mean age of 68±12 years-old were submitted to laparoscopic implantation of AUS. Early overall complication rate was 16%, but only one case was Clavien-Dindo ≥3. After a median follow-up of 67 months, 22.2% of the patients needed a device revision, the majority due to mechanical device dysfunction. AUS definitive explantation was performed in 16%, mainly due to urethral/vaginal erosion (9.9%) and infection (6.2%). Patients with age ≥70 years and follow-up ≥10 years significantly predisposed for device revision. At the time of the last follow-up, 72% of the patients were keeping the urinary continency.

CONCLUSIONS

Laparoscopic AUS implantation in females is an effective treatment for SUI due to ISD. Meanwhile, adequate patient selection, multidisciplinary evaluation and careful expectation management are essential to achieving good results, concerning their significant complication rate.

Evaluation and management of urethral and periurethral masses in women

PURPOSE OF REVIEW

Female periurethral masses are an uncommon occurrence. The purpose of this review is to describe etiologies of female urethral and periurethral masses and to provide an update on diagnosis and management.

RECENT FINDINGS

The most common causes of periurethral and urethral masses in women are urethral caruncles, urethral diverticula, and Skene's gland cysts. Urethral meatal lesions such as urethral caruncles and prolapse can be managed conservatively with topical estrogen therapy and close follow-up or should be excised in the setting of thrombosis, significant or recurrent bleeding, acute urinary retention, or persistent pain. Benign periurethral gland masses, such as Skene's gland cysts, Gartner's duct cysts, and Mullerian duct cysts, remain rare. Recent case series reveal a high rate of surgical management of these lesions with few complications. Urethral malignancy or malignant transformation of benign etiologies are even rarer but can be aggressive in nature and should be treated promptly.

SUMMARY

Nonspecific urinary and vaginal symptoms as well as similar physical presentations make diagnosis of urethral and periurethral lesions in females difficult. Magnetic resonance imaging is useful for differentiation of periurethral masses. The decision for conservative or surgical management is typically guided by patient symptom bother, as well as concern for urethral malignancy.

Skene's gland duct cyst: three cases in female newborns

Skene's gland duct cysts are benign, asymptomatic bulging interlabial masses that are rarely identified in female newborns. The aetiology is unknown, but it is commonly associated with in utero maternal oestrogen exposure or obstruction or stenosis of the gland duct. We report three unrelated cases of neonatal Skene's gland duct cysts that resolved spontaneously without the need for surgical intervention.

Laparoscopic-assisted anorectoplasty for anorectal malformation with rectobulbar fistula: A two-center comparative study with posterior sagittal anorectoplasty

Due to the controversy on the feasibility of laparoscopic-assisted anorectoplasty (LAARP) for the treatment of the anorectal malformation (ARM) with rectobulbar fistula (RBF), this study aimed to compare the outcomes of LAARP and posterior sagittal anorectoplasty (PSARP) for ARM with RBF. Demographic data, postoperative complications, and bowel function of RBF patients who underwent LAARP and PSARP at 2 medical centers from 2016-2018 were retrospectively reviewed. Eighty-eight children with RBF were enrolled, including 43 in the LAARP group and 45 in the PSARP group. There were no significant differences in the sacral ratio (P = .222) or sacral agenesis (P = .374). Thirty-seven and 38 patients in the LAARP and PSARP groups were followed up for a median of 4.14 years. The postoperative complications were comparable between the groups (P = .624), with no cases of urethral diverticulum. The urination of all cases was normal and no evidence of cyst formation was found on MCU or MRI during the follow-up period. The incidence of rectal prolapse was similar between the 2 groups (9.3% vs 17.8%, P = .247). The groups had equivalent Bowel Function Score (15.29 ± 2.36 vs 15.58 ± 2.88, P = .645), but the LAARP group had better voluntary bowel movement (94.6% vs 84.2%, P = .148) by Krickenbeck classification. The intermediate-term outcomes of LAARP show that the urethral diverticulum was rare by the intraluminal incision of the fistular and the bowel function was comparable to that of PSARP in ARM with rectobulbar fistula. However, LAARP was associated with smaller perineal wounds.

Retrospective evaluation of the improvement in the urinary status-related quality of life after robot-assisted radical prostatectomy

OBJECTIVES

This study aimed to investigate the characteristics of patients who report improvement in quality of life (QOL) related to urinary status after undergoing robot-assisted radical prostatectomy (RARP) for localized prostate cancer.

METHODS

We retrospectively reviewed the patients who underwent RARP between May 2010 and May 2021 at our institution and were preoperatively unsatisfied with their urinary status. Patients were grouped as Group 1 (improved patients: "satisfied" with urinary status based on international prostate symptom score QOL [IPSS-QOL] = 0-2 at 12 months after RARP) and Group 2 (unimproved group: "unsatisfied"-IPSS-QOL 3-6). Additionally, the Expanded Prostate Cancer Index Composite (EPIC) urinary subdomains (urinary function, urinary bother [UB], urinary incontinence, and urinary irritation/obstruction [UIR]) and IPSS were evaluated preoperatively and till 12 months after RARP.

RESULTS

Of the 237 patients, 72 (30.4%) were Group 1, and 165 (69.6%) were Group 2. Only UB and UIR improved at 12 months after RARP in Group 1, while other EPIC urinary subdomains remained unimproved at 12 months in both groups. On the other hand, IPSS improved at 12 months in both groups. Univariate and multivariate analysis revealed that the nerve-sparing, preoperative low IPSS (<11 vs. ≥11), and low IPSS-QOL (3 vs. 4-6) were associated with improvement in urinary status-related QOL (p < 0.05).

CONCLUSIONS

Improvement in UB and UIR are important factors to ascertain improvement in urinary status-related QOL after RARP. Nerve-sparing and preoperative IPSS/IPSS-QOL values are useful predictors of this improvement.

Primary management of pelvic fracture urethral injury in a woman: challenges and outcome

Literature on the management of pelvic fracture urethral injuries (PFUI) in women is scarce. We present a case of PFUI in a woman.A woman in her 50s presented with lower abdominal pain, bleeding per vaginum and inability to void following road traffic accident. Local examination showed mid-urethral transection injury and tear over the left anterolateral aspect of the vagina. Foley's catheter bulb and bony fragments of the fractured pelvis were palpable anteriorly. Imaging revealed bilateral superior and inferior rami fractures with pubic bone diastasis. She underwent external fixation of pelvic bones with primary repair of urethral and vaginal mucosal injury.Intraoperatively external pelvic fixator was applied, following which the bony fragments in the vagina were lifted up (due to the realignment of pelvic bones). Mid-urethral transection injury was repaired using end-to-end anastomotic urethroplasty. Per-urethral catheter and suprapubic catheter were placed. Periurethral tissue and vaginal layers were closed over the urethral repair. The postoperative course was uneventful.External pelvic fixator was removed after 6 weeks of surgery. Micturating cystogram showed no evidence of contrast extravasation. Follow-up at 3 months showed no urinary symptoms with a bell-shaped uroflowmetry curve.

Mid-Perineal Scrotal Flap for the Repair of Urorectal Fistulas: A New Technique

Rectourethral fistula (RUF) is an infrequent but severe complication of the treatment of prostate cancer. Herein, we describe a new surgical approach used successfully in 3 patients that incorporates a partially de-epithelialized mid-perineal scrotal flap (MPSF), used as interposition flap, that can be used in almost every patient with RUF after radiotherapy, regardless of having or not a concomitant posterior urethra or bladder neck stricture or contracture that might require a simultaneous urethroplasty. The interposition flap includes well vascularized subcutaneous fat tissue by distal vascular branches of the internal pudendal vessels that reaches without tension the deep perineum up to the posterior bladder neck. The MPSF is a time efficient procedure that allows excellent access to the bulbar urethra and to the surgical plane between rectum and prostate and it does not require a separate incision for the flap harvesting procedure when required.

[Thirty-nine cases of suburethral diverticula in women: 30 years single center experience]

We here report a retrospective analysis of 30 years´ experience with 39 female patients suffering from suburethral diverticula. The average age of patients was 37 years of age (24-56 years). The average parity was 2 (1-7); 65% of deliveries were complicated by dystocia, with forceps used in 43% of cases. All patients had a history of urological or gynaecological infections. The revealing symptoms were heterogeneous but recurrent urinary tract infections (26 cases), pollakiuria (23 cases), post-micturition urethral discharge (21 cases), vaginal pain (17 cases) and a sensation of vaginal bulge (15 cases) were mostly reported. Radiological assessment were performed, including intravenous urography, retrograde and micturition urethrography, ultrasound, or MRI. Transvaginal diverticulectomy was the treatment of choice for all patients, with no reported intraoperative complications. At 4 years of follow up outcome was satisfactory. Four patients developed recurrence of diverticulitis. These data provide important information about clinical features, diagnostic results and long-term outcomes of transvaginal diverticulectomy, enabling better management of this rare condition.

Laparoscopic repair of acquired rectourethral fistula by vesical peritoneal flap

INTRODUCTION

A rectourethral fistula (RUF) is an infrequent complication that can be iatrogenic in most cases. Multiple surgical interventions were described for RUF repair including transsphincteric, transanal, transperineal, and transabdominal approaches. To this day, there is no consensus on a standardized surgery of choice for acquired RUF.

MATERIALS AND SURGICAL TECHNIQUE

Our patient was diagnosed with RUF 4 weeks after undergoing laparoscopic low anterior resection for midrectum adenocarcinoma, with failure of conservative treatment. A three-port transabdominal approach was used to dissect the rectoprostatic space and close the fistula orifice on the anterior rectal wall. With the technical impossibility to develop an omental flap, the peritoneum on the posterior vesical wall was carefully dissected to form a rectangular flap pedicled by its inferior aspect. The harvested peritoneal flap was then anchored between the prostate and the rectum. Follow-up imaging showed the absence of RUF, concurrently with total remission of RUF symptomatology.

DISCUSSION

Management of acquired RUF can be challenging, especially after failure of conservative treatment. Laparoscopic repair of acquired RUF by vesical peritoneal flap is a valid option for a minimally invasive approach for the treatment of RUF.

Outcomes of gracilis muscle interposition for rectourethral fistulas caused by treatment of prostate cancer

BACKGROUND

Gracilis muscle interposition (GMI) has been associated with favorable outcomes in treating complex perianal fistulas. Outcomes of GMI may vary according to the fistula etiology, particularly between rectovaginal fistulas in women and rectourethral fistulas (RUF) in men. The aim of this study was to assess the outcome of GMI to treat RUF acquired after prostate cancer treatment.

METHODS

This retrospective cohort study included male patients treated with GMI for RUF acquired after prostate cancer treatment between January 2000 and December 2018 in the Department of Colorectal Surgery, Cleveland Clinic Florida. The primary outcome was the success of GMI, defined as complete healing of RUF without recurrence. Secondary outcomes were length of hospital stay and postoperative complications.

RESULTS

This study included 53 male patients with a median age of 68 (range, 46-85) years. Patients developed RUF after treatment of prostate cancer with radiation (52.8%), surgery (34%), or transurethral resection of the prostate (TURP) (13.2%). Median hospital stay was 5 (IQR, 4-7) days. Twenty (37.7%) patients experienced 25 complications, the most common being wound infection and dehiscence. Primary healing after GMI was achieved in 28 (52.8%) patients. Fifteen additional patients experienced successful healing of RUF after additional procedures, for a total success rate of 81.1%. Median time to complete healing was 8 (range, 4-56) weeks. The only significant factor associated with outcome of GMI was wound dehiscence (p = 0.008).

CONCLUSIONS

Although the initial success rate of GMI was approximately 53%, it increased to 81% after additional procedures. Complications after GMI were mostly minor, with wound complications being the most common. Perianal wound dehiscence was significantly associated with failure of healing of RUF after GMI.

Posterior urethral valve in thai boys

BACKGROUND

Posterior urethral valve (PUV) is the most common congenital bladder outlet obstruction in boys, causing renal damage beginning in utero. There are scarce data from Thailand regarding the long-term outcomes of PUV in boys, thus the aim of this study was to examine the presentation, clinical course, complications, outcomes and renal survival in PUV boys.

METHODS

We reviewed the medical records of PUV boys treated at the Pediatric Nephrology Clinic, Prince of Songkla University, Thailand, over a 30-year-period.

RESULTS

Seventy-seven PUV boys were identified, with a median age at diagnosis of 4.8 months. The most common presentations were urinary tract infection (UTI), poor urine stream and urinary dribbling in 26 (33.8%), 19 (24.7%) and 11 (14.3%) boys, respectively. Renal ultrasound results in 70 boys showed 8 (11.4%) unilateral and 56 (80%) bilateral hydronephroses. Of 72 voiding cystourethrograms, 18 (25.0%) showed unilateral and 22 (30.6%) bilateral vesicoureteral refluxes. 99mTc dimercaptosuccinic acid renal scans in 30 boys showed 12 (40%) unilateral and 8 (26.7%) bilateral renal damage. Fifty-nine (76.6%) boys had 149 UTIs; 42 (54.4%) had recurrent UTI. Forty-eight boys had valve ablation at the median age of 30.3 months. 22 boys (28.6%) developed chronic kidney disease (CKD) at a median age of 15.0 years.

CONCLUSION

Of 77 PUV Thai boys, UTI was the most common presentation. Recurrence of UTI and CKD was the most common consequence. Lifelong follow-up for renal and bladder functions is essential for all PUV patients.

Urethrorectal fistula ligation and transection in a dog with a history of unilateral abdominal cryptorchidism and misdiagnosed anal gland disease

A 10-month-old unilaterally cryptorchid male labradoodle dog was presented to a specialty surgery referral center with a reported history of persistent anal sac leakage that was unresponsive to conservative management. The dog underwent castration and left anal sacculectomy but was witnessed urinating from the anus postoperatively. A contrast urethrogram was performed, and a urethrorectal fistula located between the distal portion of the pelvic urethra and the caudal aspect of the rectum was diagnosed. One week later, the dog underwent ligation and transection of the fistula. Surgery was successful and the dog recovered unremarkably with complete resolution of clinical signs. A contrast urethrogram 1 mo after surgery confirmed the successful ligation and transection of the fistula. Key clinical message: To the authors' knowledge, this is the first clinical report of urethrorectal fistula ligation and transection in a dog with unilateral abdominal cryptorchidism and misdiagnosed anal sac disease. Our findings underscore the importance of a thorough physical examination, history taking, and clinical workup for appropriate diagnosis and treatment of multiple congenital abnormalities.

Urethral Diverticulum Marsupialization With Modified Spence-Duckett Procedure

OBJECTIVE

To demonstrate a modified approach to the Spence-Duckett procedure for treatment of a distal urethral diverticulum. A urethral diverticulum is an outpouching of urethral mucosa occurring in 2-5% of the population.1 They are thought to commonly arise due to chronic inflammation or infection of the peri-urethral glands.2,3 MATERIALS AND METHODS: We present a 37-year-old female with vaginal bulge, dyspareunia, and dysuria. On examination, she had a 2-centimeter tender mass abutting the distal urethra. Imaging such as ultrasound or magnetic resonance imaging is critical to map the location of the diverticula along the urethra and extent of urethral involvement as it can inform surgical technique. Diverticula are typically located postero-laterally at the mid- or distal urethra; however, they can be found at any location along the urethra.2,3 Care must be taken to avoid disruption of the continence mechanism at the mid-urethra to prevent incontinence after surgery. Magnetic resonance imaging revealed a 1.7 × 1.7 × 1.8 centimeter unilocular cystic structure at the left posteromedial distal urethra consistent with a urethral diverticulum. The patient desired surgical management.

RESULTS

Spence and Duckett traditionally described insertion of one blade of the Metzenbaum scissors in the urethra with incision into the diverticulum and anterior vaginal wall followed by marsupialization.4 Given the small size of the diverticular ostium identified, we opted to make an incision using a scalpel from the ostium down the posterior aspect of the urethra and proximally to the anterior vaginal wall. We then excised the diverticular sac prior to marsupialization. At 6 weeks after surgery, she had full resolution of her symptoms without development of urinary incontinence. Pathologic examination is important because while rare, cancers can originate from urethral diverticula, with a prevalence of 6-9%.5 Pathology was consistent with urethral diverticulum and negative for dysplasia.

CONCLUSION

While effective, the Spence-Duckett technique is described as a "generous meatotomy" with risks of urethral shortening. Our modified approach reduces these risks, resolves bothersome symptomatology, improves cosmesis, and minimizes risk of anatomic or functional urethral compromise.

Efficacy of Laparoscopic Management of Posterior Urethral Diverticulum in Anorectal Malformations

BACKGROUND

A posterior urethral diverticulum (PUD) is a serious postoperative complication after anorectal malformation correction. Complete resection is technical demanding because of limited retrourethral working space deep in the pelvis.

OBJECTIVE

We pioneered the single-incision laparoscopic approach for PUD excision and evaluated the efficacy.

DESIGN, SETTING, AND PARTICIPANTS

Twenty-six PUD patients undergoing redo surgeries between June 2011 and June 2021 were reviewed.

SURGICAL PROCEDURE

A series of transabdominal retraction sutures were placed through the PUD to facilitate dissection. The contents were evacuated to create a working space. Distal PUD dissection was carried along the submucosal layer to prevent injury of the urethra/pelvic nerve complex. The rectal mucosa was peeled off from the junction site for complete PUD excision. The muscular cuff of the distal rectum was then oversewn.

MEASUREMENTS

Operative time, postoperative recovery, and complications were assessed.

RESULTS AND LIMITATIONS

The mean age of redo surgery was 2.46 yr. The average operative duration was 2.35 h. The mean postoperative hospital stay, resumption of full diet, and bowel movement were 10.23, 2.15, and 1.54 d, respectively. The median follow-up period was 46 mo (12-132 mo). No remnant of PUD, recurrent fistula, or urinary leak was detected. None of the patients had difficulty in urination, urinary dribbling, urinary tract infection, constipation, or soiling. All patients retained morning erection, and two postpubertal patients had ejaculations.

CONCLUSIONS

Our single-incision laparoscopic redo surgery provides an effective approach for PUD excision. It minimizes complications. It also preserves urinary and bowel continence and sexual function.

PATIENT SUMMARY

Complete resection of a posterior urethral diverticulum (PUD) in anorectal malformation is technically demanding because of limited retrourethral working space in the deep pelvis. The outcomes of single-incision laparoscopic PUD excision were satisfactory.

Minimally Invasive Management of Rectourethral Fistulae

OBJECTIVE

To report our experience and outcomes in minimally invasive management of rectourethral fistula (RUF).

METHODS

From 2004 to 2021, 15 patients who underwent minimally invasive RUF repair by a single surgeon at 2 international institutions were retrospectively reviewed. Baseline demographic characteristics, perioperative, and postoperative data were collected. Complications were reported using the modified Clavien-Dindo Classification System and the European Association of Urology Complication Panel Assesment and Recommendations. Success was defined as complete resolution of fistula-related symptoms at 12-month follow-up along with confirmation of fistula closure by imaging or cystoscopy. Categorical variables were presented as frequencies and percentages whereas continuous variables were reported as median and quartiles.

RESULTS

Fifteen male patients with a median age of 71 (64-79.2) years were treated. Four cases (26.6%) occurred postsurgery, 8 cases (53.3%) occurred after energy treatments, and 3 cases (20%) after surgery combined with an energy treatment modality. A robotic and laparoscopic approach was performed in 9 (60%) and 6 (40%) patients, respectively. No intraoperative complications were reported. Median operative time was 264 (217.5-341) minutes, estimated blood loss was 175 (137.5-200) mL, and the length of hospital stay was 4 days. Nine postoperative complications were reported. All patients were followed-up for 12 months with no recurrence reported. All patients reached our criteria for successful RUF repair.

CONCLUSIONS

Minimally invasive surgery could represent an efficient way to manage RUF in selected patients. More studies and treatment standardization are needed to assess the role of minimally invasive surgery in the management of RUF.

Congenital anterior urethral valves and diverticulum: A case series and association with posterior urethral valves

INTRODUCTION

There is limited data regarding long-term results and associated complications in patients with anterior urethral valve (AUV) and diverticulum (AUD). We retrospectively reviewed AUV/AUD cases managed by us between the year 2002-2020.

MATERIAL AND METHODS

Presentation, investigations, management, concomitant posterior urethral valves (PUV) and pre-operative characteristics predisposing to long-term poor renal outcome were assessed.

RESULTS

There were 27 patients [AUV (n = 11); AUD (n = 16)] with 5 having concomitant PUV. All presented with poor urinary stream and dribbling at a median age of 1-year (5 days-12 years). More patients with AUD (9 of 16, 56.3%) especially with concomitant PUV presented at ≤1-year-age as compared to those with AUV (4 of 11, 36.4%). Concomitant PUV and AUD cases (n = 3) had characteristic micturating cystourethrography (MCUG) features. (Fig. 1A) Retrograde urethrography delineated the valve and distal urethra dimensions better (Fig. 1B, C). Urethral hypoplasia distal to the valve (n = 4) urethral duplication (n = 1) were associated (Fig. 1D). Syringocele was ruled out in proximal AUD by absence of filling defect on MCUG and appearance of urethral walls on urethrocystoscopy. Serum creatinine > 1 mg/dL (n = 5), trabeculated bladder (n = 12), and vesicoureteral reflux (VUR) (n = 12) was noted at presentation. Diverticulum/valve excision (n = 13, 48.2%), fulguration alone (n = 12, 44.4%) and primary urinary diversion (n = 2, 7.4%) were performed. Follow up (range:3 mo-19 years), showed deranged renal function tests (n = 6), VUR (n = 4), impaired renal function on scans (n = 8), and lower urinary tract dysfunction (n = 7). Outcome with and without associated PUV was similar. Long term results were better in AUV compared to AUD. Pre-operative raised serum creatinine (>1 mg/dL), trabeculated bladder, non-dilated posterior urethra on MCUG and bilateral impaired renal function on scans had significant association with follow up eGFR less than 60 ml/kg/min.

CONCLUSIONS

Co-existing PUV and AUD present earlier and have specific imaging findings. In proximal AUD, possibility of syringocele should be kept in mind, as they have similar presentation and imaging. Concomitant PUV did not alter prognosis. Secondary effects on bladder and renal function were more with AUD. Follow up eGFR less than 60 ml/kg/min was associated with pre-operative elevated serum creatinine, trabeculated bladder, non-dilated posterior urethra, and bilateral impaired renal function on scans.

[Urethral diverticulum in a patient with two stones after combined treatment of prostate cancer with metastasis to the left cavernous body of the penis]

Urethral diverticula are sac-like dilatations of the urethra that communicate with its lumen. They may be congenital or acquired. In males, urethral diverticula are rare and classified as congenital (true) and acquired, which are associated with trauma, abscess, strictures, surgical procedures, in particular in patients with hypospadias. A clinical observation of urethral diverticulum with two stones in a man after complex treatment of prostate cancer with metastasis to the left cavernous body of the penis is presented in the article. At the first stage, the patient underwent endoscopic lithotripsy with a biopsy of the diverticulum wall and laser ablation of the stricture of urethrovesical anastomosis. At the second stage the excision of the diverticulum with urethroplasty was performed. The team of authors considers this clinical observation to be unusual. Previously, postoperative urethral diverticula with two stones in patients after complex treatment of prostate cancer with metastasis to the left cavernous body of the penis was not described in the scientific literature.

Preventing Rectourethral Fistula Recurrence With Gracilis Flap

BACKGROUND

Rectourethral fistula (RUF) is an uncommon serious condition with various etiologies including neoplasm, radiation therapy, and surgery. Treatment for RUF remains problematic with a high recurrence rate. Although studies have suggested the recurrence rate of RUF is lower after surgical repair using a gracilis flap, outcomes have varied and the studies were small and inadequately controlled. Here, we compare outcomes of RUF repair with and without gracilis flap to evaluate its efficacy in preventing fistula recurrence and identify risk factors for recurrence.

METHODS

We retrospectively reviewed patients who had undergone surgical repair for RUF between 2007 and 2018 at our institution and had at least 30 days of follow-up. Patient demographics, comorbidities, and surgical outcomes were recorded and compared for patients who had gracilis flap repair and those who did not (controls). Single variable logistic regression analysis was used to identify risk factors for recurrence.

RESULTS

The gracilis group (n = 24) and control group (n = 12) had similar demographics and comorbidities. Fistula recurrence was far less frequent in the gracilis group (8% vs 50%, P = 0.009). There were no significant differences in other outcomes including length of hospitalization and surgical complications. When recurrent RUF was treated with a muscle flap (gracilis or inferior gluteus), 83% of the group had no additional fistula recurrence. In the control group, history of radiation ( P = 0.04) and urinary incontinence ( P = 0.015) were associated with fistula recurrence.

CONCLUSIONS

We recommend using a gracilis flap for RUF repair given its association with lower recurrence without increased surgical complications.

What urethrogram sees and a surgeon does not

INTRODUCTION

Urethrorrhagia is an infrequent sign in childhood. It should be distinguished from hematuria, since they have a different etiology.

CLINICAL CASE

11-year-old male patient with significant urethrorrhagia. Urinary sediment analysis: red blood cells++. Pelvic ultrasonography: fusiform anechoic image in the corpus spongiosum of the penile root. Retrograde urethrogram: normal anterior urethra, extraluminal contrast passage in the ventral aspect of the bulbar urethra. Cystoscopy: no pathological findings in the urethra or the bladder. Control retrograde urethrogram: cystic dilatation of Cowper's gland duct; Maizels' type 3 perforated syringocele.

DISCUSSION

Cowper's syringocele is a rare pathology. It can occur at any stage of childhood in the form of urinary infection, obstructive voiding symptoms, or urethrorrhagia. Urethrogram is key for diagnostic purposes, since most Cowper's syringoceles are detected following urethrogram or cystoscopy. Cases with functional repercussions for the urinary system require surgical treatment. Otherwise, a wait-and-see approach is feasible.

Characterization of urethral diverticula in males

INTRODUCTION

Urethral diverticulum in a male is a rare entity and the literature is limited to case reports and small case series. The aim of our study is to characterize this disease in patients from three Mayo Clinic locations.

MATERIALS AND METHODS

Chart analysis was performed of patients across all three Mayo Clinic sites that had International Classification of Diseases (ICD) codes corresponding to urethral diverticulum or urethral diverticulectomy via CPT code. Data were available for patients that were seen from 6/1/2003 through 10/5/2018. Patients were classified by age, etiology, presenting symptomatology, location, treatment, pathology, and postoperative outcomes.

RESULTS

A total of 87 men met the initial search criteria with 52 having documented urethral diverticula. The most common presenting complaint in these men was incontinence (37%). The majority of diverticula (83%) were within the anterior urethra. The most common diagnostic modalities were retrograde urethrogram (46%) and cystoscopy (50%). Most diverticula were iatrogenic (77%). Of the men that were diagnosed, 42% went on to have diverticulectomy. Median follow up was 1.5 years. Eighteen percent of patients had persistent urinary symptoms following diverticulectomy with incontinence being the most common finding. Postoperative complications were experienced by 26% patients with the most prevalent complication being urethrocutaneous fistula. The patients who did not undergo diverticulectomy either had other surgical procedure to manage their coexisting conditions or were managed medically.

CONCLUSION

Urethral diverticulum in males is a rare yet important entity that requires special consideration, especially in those who have had prior surgery within the lower urinary tract.

Congenital aphallia associated with congenital urethrorectal fistula: A rare case report

RATIONALE

Aphallia is an extremely rare congenital malformation of unknown cause, with few reports in the literature. It is usually associated with other urogenital and gastrointestinal anomalies and is believed to be a result of either the absence of a genital tubercle or chromosome polymorphism. Herein, we describe an extremely rare case of congenital aphallia with congenital urethrorectal fistula and describe our treatment for this patient.

PATIENT CONCERNS

An 8-year-old boy was brought to our hospital by his parents because of congenital absence of the penis. The child was male per karyotype and had excess heterochromatin on chromosome 9 (46 XY with 9 qh+). No urethral orifice was identified, and urine passed rectally since birth; thus, urinary tract outlet obstruction led to urine reflux from the anus to the epididymis for a long time. The boy had to be placed on prophylactic antibiotics because he developed urinary tract infection and epididymitis almost every day.

DIAGNOSIS

Congenital aphallia (46 XY normal male karyotype) associated with congenital urethroretal fistula.

INTERVENTIONS

We performed urethral exteriorization via perineal urethroplasty and urethrorectal fistula repair. The parents approved for phallic reconstruction when the boy reached puberty.

OUTCOME

A new external urethral orifice was created on the lower scrotum. The urinary reflux was corrected, and the epididymitis symptoms disappeared. The urethral fistula was then closed. At 8 months follow up, the patient was no longer on antibiotics and had no symptoms of urinary tract infection or epididymitis.

CONCLUSIONS

Compatible treatment should be adopted to address urinary tract drainage and infection. Management requires a stepwise approach to address needs as they arise. Neophalloplasty should be performed by an experienced team in early adolescence.

Rectourethral Fistula Induced by Localised Prostate Cancer Treatment: Surgical and Functional Outcomes of Transperineal Repair with Gracilis Muscle Flap Interposition

BACKGROUND

Transperineal repair of rectourethral fistula (RUF) following prostate cancer treatment with gracilis muscle flap interposition (GMFI) leads to favourable outcomes, but published data are still lacking, notably concerning functional aspects.

OBJECTIVE

To assess surgical and functional outcomes of this treatment of RUF.

DESIGN, SETTING, AND PARTICIPANTS

A retrospective study was conducted in two referral hospitals including 21 patients who underwent RUF transperineal repair with GMFI between 2008 and 2020.

SURGICAL PROCEDURE

The standard vertical perineal approach is performed for fistula dissection. Bladder and rectal defects are closed separately. After dissection from its facia, the flap is harvested, preserving its pedicle; it is brought to the perineum and placed between the urethra and the rectum to fully cover the sutures.

MEASUREMENTS

Fistula closure (clinical data and postoperative cystography), digestive stoma closure, and complications graded according to the Clavien-Dindo classification were reviewed. Functional results were assessed using the Urinary Symptom Profile (USP) questionnaire, anal incontinence St Mark's score, Patient Observer Scar Assessment Scale (POSAS) score, and a nonvalidated Likert scale questionnaire assessing issues with lower extremity functionality.

RESULTS AND LIMITATIONS

The median (interquartile range) follow-up was 27 (8-47) mo. Fistula closure was successful for 20 patients (95% success). Digestive stoma was closed in 10/12 shunted patients (83%). Two (9%) Clavien-Dindo grade ≥3b complications were reported (one urinoma in a kidney transplant patient and one thigh haematoma evacuation). Eighteen patients (86%) completed the postoperative questionnaire; 11/18 (61%) had significant urinary incontinence. The mean (standard deviation) USP dysuria score was 1/9 (1.2), mean St Mark's score was 5/24 (5), mean POSAS score was 19/70 (11), mean lower extremity functionality score was 2/20 (4), and mean procedure patient satisfaction score was 9/10 (2). The retrospective design and limited number of patients are the main limitations.

CONCLUSIONS

The present study found an excellent success rate and low morbidity for RUF transperineal repair with GMFI. Functional outcomes were satisfactory despite a high urinary incontinence rate.

PATIENT SUMMARY

We performed an analysis of the outcomes of perineal approach surgery with muscle interposition for closing abnormal communication between the bladder and the rectum after prostate cancer treatment. This surgical technique was found to be safe to perform and provides a high success rate, with patients being satisfied despite poor urinary continence outcomes. TAKE HOME  MESSAGE: Transperineal repair of rectourethral fistula with gracilis muscle flap interposition is a safe surgery with a high success rate. Urinary continence is a serious issue, but patients may be reassured as to the impact on digestive continence, lower extremity functionality, and scar aesthetics.

[Rectourethral fistula treatment using the modified York Mason technique: Failure factors assessment]

OBJECTIVES

To assess surgical outcomes and failure factors in the management of rectourethral fistulas treated surgically with the modified York Mason technique based on our center's 25 years of experience.

METHODS

From 1997 to 2021, in a single center study, a total of 35 consecutive patients, underwent rectourethral fistula cure, using the modified York Mason technique. Preoperative patient data, surgical outcomes and failure factors were assessed.

RESULTS

Of the 35 patients, 28 were successfully managed without the need of further intervention (80%). Median age was 67 years (IQR 62-72) and median follow-up time was 71 months (IQR 30-123). There was no significant difference between the patients that had recurrence or not after the first York Mason.

CONCLUSIONS

The modified York Mason technique offers a high success rate for the cure of iatrogenic rectourethral fistulas. No predictive factor of failure, after a first cure of recto-uretral fistula by modified York-Mason technique was reported.

LEVEL OF EVIDENCE

3.

Advance in research of treatment and prognosis of iatrogenic rectourethral fistula

Recturethral fistula (RUF) is a kind of serious complication that mainly happened during the treatment of prostate cancer. It has become one of the most difficult diseases to treat in urology because of its special anatomical location, complicated condition, and the varied prognosis. At present, the main treatment methods for RUF are conservative treatment such as application of antibiotics and indwelling catheters, etc. and surgical treatment such as transperineal approach, transsphincter approach, transanal approach, transabdominal approach, etc. However, there is no explicit treatment protocol for RUF. What's more, the etiology of RUF has changed greatly in recent years. Summarizing the advantages and disadvantages of different RUF's treatment methods and their prognosis will be helpful for the decision of clinical treatment.

Transvaginal primary layered repair of postsurgical urethrovaginal fistula

INTRODUCTION AND HYPOTHESIS

Urethrovaginal fistula (UVF) is a rare disorder, which implies the presence of an abnormal communication between the urethra and the vagina.

METHODS

Surgical repair options include transurethral, transabdominal and transvaginal procedures, either with or without tissue interposition. The vaginal route is considered a safe and effective option to correct UVF. This video is aimed to present a case of direct transvaginal layered repair of urethrovaginal fistula, without the use of tissue interposition. The featured patient is a 66-year-old woman who developed a symptomatic UVF after a complicated laparoscopic hysterectomy for endometrial cancer 3 years before. Cystoscopy demonstrated the presence of a 7 mm urethral orifice a few millimeters caudal from the bladder neck. After proper informed consent, the patient was admitted to transvaginal primary layered repair, according to the technique demonstrated in the video. The featured procedure was completed in 60 min and blood loss was < 100 ml. No surgical complications were observed.

RESULTS

The procedure was successful in restoring the anatomy and relieving the symptoms.

CONCLUSION

Transvaginal layered repair without tissue interposition represents a safe and effective procedure for the surgical management of postsurgical urethrovaginal fistula.

Transurethral endoscopic extensive incision of complex urethral diverticula in symptomatic women: case series in a single center experience with long-term follow-up

BACKGROUND

Urethral diverticula (UD) affect 1-6% of adult women. Complex UD are rare, but can be challenging to manage. To evaluate the efficacy and safety of transurethral endoscopic extensive incision of complex UD in symptomatic women.

MATERIALS AND METHODS

We retrospectively evaluated 22 female patients with complex UD who underwent transurethral endoscopic extensive incision management in our hospital. This technique was completed by one experienced surgeon over a 7-year period between August 2012 and July 2019. The surgical technique involved placing the patient in a lithotomy position, inserting the needle electrode endoscopically, and incising the tented roof of the UD from its orifice until the entire roof had been opened widely. Outcome data included complete symptom resolution rate, imaging data, de novo stress urinary incontinence (SUI), recurrence, short-term and long-term complications. Cure was defined as decreased UD volume on postoperative magnetic resonance imaging and no post-voiding urinary retention in the diverticular cavity, with symptom resolution.

RESULTS

The initial symptom-resolution rate after 37.0 (27.0, 50.0) months' follow-up was 81.80% (18/22) and the de novo SUI rate was 13.60% (3/22). No patients required additional operations after conservative therapy. There was no symptomatic or imaging recurrence, and no short-term complications.

CONCLUSION

Transurethral endoscopic extensive incision was an effective and safe treatment for symptomatic female complex UD. Its symptom-resolution rate and de novo SUI rate might be superior to the conventional transvaginal approach. Moreover, it was less invasive and easier to conduct, with fewer complications.

Are anterior urethral valve and anterior urethral diverticulum two separate entities: A radiological and endoscopic review

BACKGROUND

Anterior urethral valve (AUV) and anterior urethral diverticulum (AUD) are two rare causes of anterior urethral obstruction with variable presentation and anatomy. Their existence as the same or different entity is still debatable, and management has not yet been standardized.

OBJECTIVE

This study is a retrospective review of cases diagnosed with anterior urethral obstruction and correlation of radiological and endoscopic anatomy of AUV and AUD.

STUDY DESIGN

A retrospective review of cases diagnosed with AUV and AUD, between May 2013 and February 2020 is presented. The presentation, laboratory, radiological and endoscopic anatomy along with the management required was reviewed. A special emphasis has been given on the correlation of radiological and endoscopic anatomy and an attempt has been made to standardize the management.

RESULTS

A total of 8 patients with age ranging from 2 months to 9 years were reviewed. Poor urinary stream and recurrent UTI was the commonest presentation. The anatomy of the anterior urethra on VCUG (voiding cystourethrogram) and Urethrocystoscopy was correlated. Two sets of patients were identified. In the first set, five cases on endoscopy had findings of the classical valve-like fold in the anterior urethra with immediate proximal dilation of the urethra giving the appearance of a 'pseudodiverticula' without any definite opening. In three of these cases, endoscopic findings correlated well with radiological findings of 'pseudodiverticula' in which dilated proximal urethra formed an obtuse angle with the ventral floor of the urethra. The other set of four patients had a 'true diverticula' on endoscopy with a well-defined mouth and prominent distal lip, correlating well with radiological findings of a 'true diverticula' forming an acute angle with the ventral floor of the urethra. One case on endoscopy had both an anterior urethral valve with a proximal 'pseudodiverticula and a large wide-mouthed bulbar 'true diverticula'. All the patients with classical valves were successfully treated using a resectoscope while two patients with 'true diverticula' were successfully managed by incising the distal lip. One of the patients previously managed for the posterior urethral valve (PUV) had both classical valves in the anterior urethra with proximal 'pseudodiverticula' and a bulbar 'true diverticula'. The AUV was ablated with a resectoscope while 'true diverticula' required diverticulectomy. All the patients after follow up of 3 months-8 years, were asymptomatic except the one with 'true diverticulum' who remained symptomatic after TUR (Trans-urethral resection) and required vesicostomy.

DISCUSSION

AUV and AUD both can cause obstructive uropathy. The proximal dilatation related to AUV cannot be labeled as a 'true diverticula', which lacks a classical orifice. The distal obstructing lip of 'true diverticula' should not be confused with a classical mucosal valve-like fold seen in AUV. While AUV and small AUD can be treated with endoscopic ablation, large diverticula as a result of wide spongiosal defects require surgical excision. A good understanding of their radiological and endoscopic anatomy is required to differentiate them and decide for appropriate management.

CONCLUSION

Based on our experience, AUV and AUD should be differentiated and should be considered as two separate entities.

Post-hypospadias urethrocutaneous fistulae: no difference in repair success between proximal and distal fistulae

INTRODUCTION Urethrocutaneous fistulae are the most common complication after hypospadias repair. We sought to compare outcomes of proximal versus distal urethrocutaneous fistula repair and hypothesized that patients with proximal fistulae would have lower rates of success than those with distal fistulae. We also aimed to evaluate factors that affected these outcomes.

MATERIAL AND METHODS

Current procedural terminology codes were used to identify patients undergoing urethrocutaneous fistula repair after hypospadias surgery between 2014 and 2017 at an academic, pediatric urology referral center. Characteristics for each initial hypospadias repair and each fistula repair were noted, including location of meatus, location of fistula, type of magnification, suture type, interposition layer and post-operative stenting. The primary outcome was successful fistula repair. Univariate and multivariate analysis was performed.

RESULTS

During the study period, 416 hypospadias repairs were performed. Thirty-one of these later presented with a fistula (8% fistula rate). Sixty-eight percent of fistulae were successfully closed with a single repair. There were 17 distal fistulae and 14 proximal fistulae. There was no difference in success between distal (71%) and proximal (64%) fistulae (p = 0.73). There was no statistically significant association between the primary outcome (successful fistula repair) and fistula location (p = 0.71), magnification (p = 0.38), suture type (p = 0.49), interposition coverage layer (0.43), or postoperative stenting (p = 0.92) on univariate or multivariate analysis.

CONCLUSION

There is no difference in success when repairing distal versus proximal urethrocutaneous fistulae. Neither fistula location, type of magnification, suture type, interposition layer nor stenting affected outcomes.

Transvaginal surgical repair of large urethral diverticula with bipedicle double-opposing flaps of the periurethral fascia

PURPOSE

The aims of this study were to describe a novel technique for transvaginal repair of large (> 4 cm) female urethral diverticulum (UD) using bipedicle double-opposing flaps of the periurethral fascia and to evaluate long-term follow-up.

METHODS

The medical records of 29 women who underwent transvaginal excision of UD at our institution were reviewed retrospectively. Seventeen cases with UD > 4 cm were included in the study. Cystourethroscopy was performed at the beginning of the surgery, and in 60% of cases the orifice of the diverticulum was identified. An inverted-U incision was performed at the vaginal anterior wall. The periurethral fascia was incised longitudinal at the midline and parallel to the urethra. The diverticular sac was dissected and resected. The neck of the diverticulum was closed with 4/0 vicryl suture. The periurethral fascia was sutured using bipedicle double-opposing flaps with interrupted 3/0 vircyl suture. The vaginal mucosa was sutured with 2/0 vicryl continuous suture.

RESULTS

All 17 women with large UD were operated on using bipedicle double-opposing flaps of the periurethral fascia. Follow-up of 5 ± 2.4 years yielded no recurrence and no other late complications.

CONCLUSION

Using bipedicle double-opposing flaps of the periurethral fascia during transvaginal excision of large UD is safe and effective.

Female urethral condyloma acuminata mimicking urethral caruncle

Condyloma acuminata are epidermal lesions caused by the human papillomavirus (HPV) most commonly affecting the anogenital region. Urethral involvement is uncommon, and may mimic other urethral lesions. In this case report, a 62-year-old patient presents with what was believed to be a urethral caruncle and underwent successful resection with the final pathologic diagnosis of urethral condyloma. The clinical features and diagnosis are reviewed. This condition should be considered in the differential diagnosis of females with known HPV or those who are deemed higher risk with unprotected sexual encounters.

Serial voiding urosonography in posterior urethral valve diagnosis and management in pediatric patients

OBJECTIVES

Report our experience with the use of contrast-enhanced serial voiding urosonography (SVU) for posterior urethral valve (PUV) patient diagnosis and management.

MATERIAL AND METHODS

Descriptive retrospective study in 0- to 14-year-old patients with suspected PUV at SVU performed as a first contrast-enhanced urinary tract test with subsequent cystoscopic study. Variables were analyzed using SPSSv22.

RESULTS

18 patients were studied (median age: 6 months). Most patients (15) presented posterior urethral dilatation (mean diameter: 9.56 mm) and a >2 mm gap between proximal and distal urethra. 13 cases had bladder thickening and 9 had VUR. 15 PUV cases, 1 case of distal urethral mucocele, and 1 case of bladder diverticulum obstructing the urethra were diagnosed. Complete PUV resection was performed in 10 patients (66.6%) at the first cystoscopy. The control SVU detected one case of recurrence due to persistence of posterior urethral dilatation. The recurrence case and the 5 incomplete resection cases were treated with a second cystoscopy and resection. The youngest patients required a third resection and cutting balloon dilatation due to residual stenosis. Mean creatinine levels at diagnosis were 0.28 mg/dl.

CONCLUSIONS

Serial voiding urosonography (SVU) is a useful complementary test in pediatric patients with posterior urethral valve. Its dynamic nature and its advantages - absence of irradiation, safety, and high sensitivity - make it an ideal imaging test for PUV diagnosis and follow-up.

Multimodality imaging of the male urethra: trauma, infection, neoplasm, and common surgical repairs

OBJECTIVE

The aim of this article is to describe the indications and proper technique for RUG and MRI, their respective image findings in various disease states, and the common surgical techniques and imaging strategies employed for stricture correction.

RESULTS

Because of its length and passage through numerous anatomic structures, the adult male urethra can undergo a wide array of acquired maladies, including traumatic injury, infection, and neoplasm. For the urologist, imaging plays a crucial role in the diagnosis of these conditions, as well as complications such as stricture and fistula formation. While retrograde urethrography (RUG) and voiding cystourethrography (VCUG) have traditionally been the cornerstone of urethral imaging, MRI has become a useful adjunct particularly for the staging of suspected urethral neoplasm, visualization of complex posterior urethral fistulas, and problem solving for indeterminate findings at RUG.

CONCLUSIONS

Familiarity with common urethral pathology, as well as its appearance on conventional urethrography and MRI, is crucial for the radiologist in order to guide the treating urologist in patient management.

CT-guided nephrostomy-An expedient tool for complex clinical scenarios

INTRODUCTION & OBJECTIVES

Percutaneous nephrostomy [1] has emerged as a pivotal approach in the therapeutic management of the obstructed urinary tract. A consecutive incorporation of ultrasonic and radiographic guidance, the approach experienced an almost ubiquitious distribution while most centers currently applying either one or both of these tools jointly. However, success of ultrasound-guidance is limited in obese patients and non-dilated uropathy. In turn, fluoroscopy usually requires an opacification of the urinary collecting system by intravenous or antegrade contrast media injection, which might be harmful for already impaired renal function, raise intrapelvic pressure and augment the risk of sepsis and hemorrhage. CT-guided PCN aids in overcoming these limitations. In the current study, we present the experience of a tertiary referral center with this technique.

MATERIALS & METHODS

Epidemiological and clinical data of all patients treated with a CT-guided PCN of native kidneys at the University Hospital Frankfurt between October 2003 and October 2013 were retrospectively collected from the patient charts. Procedural parameters including radiological aspects, technical and therapeutic success, complication and mortality rate have been analyzed statistically.

RESULTS

In total, 140 PCN procedures have been performed in 77 patients with a median age of 69 (± 13). The median body mass index was 27 with 66.6% of patients being overweight or obese. Charlson comorbidity index was 7 ranging 0-16. Indications for PCNs were obstructive uropathy (62.9), urine extravasation (22.9%), urinary tract fistulas (11.4%) and technical reasons (2.8%). In 68.8% of patients, initial diagnosis was malignancy. 56.4% of kidneys were non-dilated before puncture. In 78.4% prone position, otherwise supine oblique position (17.3%) or supine position (4.3%) was used. 71.4% of PCNs were carried out solely under local anesthesia. Technical success has been achieved in 90% with a complication rate of 3.6% (all grade minor B) and was not significantly different between dilated and non-dilated kidneys. 42.9% of fistulas and 64.3% of urinary tract leakages, healed after PCN placement. 30 days mortality rate was 5.2% without being directly associated with the PCN procedure itself.

CONCLUSION

CT-guided PCN is a feasible approach associated with low morbidity. It is particularly useful in complex clinical scenarios e.g. critically ill, newly operated or obese patients as well as non-dilated kidneys. Moreover, it represents a minimally-invasive option for treating leakages and fistulas of the urinary tract.

Urethral defect due to periurethral abscess treated with a tunica vaginalis flap: A case report

RATIONALE

Periurethral abscess is a life-threatening disease, and the occurrence of a urethral defect with periurethral abscess is a rare finding. In this case, the patient had a lengthy urethral defect from the bulbous urethra to the membranous urethra accompanied by periurethral abscess that developed within a short time. Herein, we report a case of a pedicle-sparing tunica vaginalis flap utilized in urethral reconstruction which degenerated due to fibrotic changes and soft tissue defects in the urethral bed.

PATIENT CONCERNS

The patient was a 36-year-old man with fever and lower urinary tract symptoms who had been treated with antibiotics and anti-inflammatory drugs for urinary tract infections 3 days before admission. Purulent necrosis was formed by the urethral abscess, and a long-length urethral defect was formed in the bulbous urethra.

DIAGNOSIS

Based on the initial computed tomography and laboratory findings, empirical antibiotics were administered to treat a lower urinary tract infection. On the 7th day of hospitalization, ultrasonography was performed due to the sudden swelling of the scrotum, and the patient was diagnosed with a periurethral abscess that was 10 × 3 cm in size.

INTERVENTION

Initial urinary diversion, wide debridement, and a large amount of abscess drainage were performed. Necrosis of the urethral ventral part caused a urethral defect that was 5 cm in size. After treatment with antibiotics, long-term disinfection and intermittent debridement were conducted and urethral reconstruction was performed using a tunica vaginalis flap with preserved vascular structure.

OUTCOMES

No complications occurred until 6 months after urethral reconstruction.

LESSONS

Urethral reconstruction using a tunica vaginalis flap is a good method for selected patients. Pedicle-sparing tunica vaginalis is an advantageous material for resolving urethral defects, especially when the surrounding circulation conditions are poor.

Management of Post-traumatic and Iatrogenic urethrocutaneous fistula in children (a case series of seven patients)

This is a retrospective study of seven patients with post-traumatic and iatrogenic urethrocutaneous fistula of penile urethra, excluding complication of hypospadias surgery. It was conducted in the Paediatric Surgery Department, Jinnah Hospital Lahore from June 2014 to January 2017. The patients ages ranged from three to twelve years. All the patients were managed by repairing the fistula in three layers electively at 3 months from the date of initial presentation. They remain well with no complaints except one with a recurrence. The complications of circumcision can be avoided by preventing circumcision by non-doctors and quacks.

Congenital Posterior Urethral Fistulae: Literature Review and Case Report

Congenital posterior urethral-perineal fistula is an abnormal communication extending from the posterior urethra to the perineal skin. We present the case of an 11-year-old boy who had recurrent febrile urinary tract infections and abnormal dribbling of urine from the perineum. Fistulogram showed a paraescrotal fistula tract, which was then surgically excised. During the 10 months of follow-up, the patient remained asymptomatic without recurrence of urinary pathology.

Endoscopic treatment of urethrodeferential reflux in children

INTRODUCTION

Urethrodeferential reflux is an underdiagnosed condition, and there is no consensus on its treatment. Our objective is to show our experience in the minimally invasive treatment of this disease using endoscopy.

MATERIAL AND METHODS

We present 8 patients with recurrent suppurative orchitis due to urethrodeferential reflux treated endoscopically during the period 2008-2013. All patients presented unilateral orchitis. The minimum number of episodes of orchitis per patient prior to the operation was 3. The endoscopic treatment consists of ureteroscopy, locating the ejaculatory orifices and conducting an intraoperative contrast study to demonstrate the urethrodeferential reflux. Subejaculatory dextranomer/hyaluronic acid was subsequently injected in all the cases.

RESULTS

The mean surgical time was 15min, and the procedure was outpatient for all patients. There were no postoperative complications, and the patients had good clinical progression. Only one case required a second injection of dextranomer/hyaluronic acid. The follow-up of these patients showed a complete resolution of the epididymitis and good testicular development, with a follow-up longer than 4 years in all cases.

CONCLUSION

We propose this form of treatment as a minimally invasive, easily reproducible alternative that shows good long-term results in our small series of patients.

Penile and Urethral Reconstructive Surgery

Penile and urethral reconstructive surgical procedures are used to treat a variety of urologic diagnoses. Urethral stricture disease can lead to progressive lower urinary tract symptoms and may require multiple surgical procedures to improve patient's symptoms. Male stress urinary incontinence is associated with intrinsic sphincter deficiency oftentimes associated with radical prostatectomy. Men suffering from urethral stricture disease and stress urinary incontinence should be referred to a urologist because multiple treatment options exist to improve their quality of life.

Suspected congenital urethral diverticulum in a dog

A 2-year-old neutered male dog with a history of urinary incontinence, recurrent urinary tract infections, and unilateral cryptorchidism was presented with an acute onset of perineal swelling. Urinary contrast studies revealed a urothelial lined structure in the perineum. Surgical resection of 80% to 90% of this structure, suspected to be a congenital urethral diverticulum, was successful.

Experience of a Tertiary-Level Urology Center in the Clinical Urological Events of Rare and Very Rare Incidence. VI. Unusual Events in Urolithiasis: 1. Long-Standing Urethral Stones without Underlying Anatomical Abnormalities in Male Children

OBJECTIVES

The study aimed to present our center's experience with long-standing urethral stones in male children with normal urethra.

MATERIALS AND METHODS

Retrospective search of our center data was done for the cases of long-standing urethral stones with normal urethra in male children during the period July 2001 - June 2016. Demographic and clinical data were studied.

RESULTS

Of more than 54,000 urolithiasis procedures, 17 male children (0.031%) were operated for long-standing urethral stones with normal urethra. In 14 cases (82.4%), residence was rural and parental education levels were low or none. All children were regularly prompted voiding with a history of difficulty or dysuria. All the stones lodged in the posterior urethra with an approximate mean duration of 2 months. The mean stone size of 11.29 ± 3.88 mm and rough surfaces in 88.2% of cases represented the main predisposing factors. Major complications included rectal prolapse in 1 case and vesicoureteral reflux in 3 cases. Endoscopic push-back was followed by disintegration in 76.5% or cystolithotomy in 17.7%, while it failed in 1 case that was treated by cystolithotomy.

CONCLUSIONS

Long-standing urethral stones in male children with normal urethra are very rare misdiagnoses. Stone topography and sociocultural factors predisposed to their lodgments and negligence. Endoscopic treatment is the best approach.