Cosmetic outcomes of grafted tubularized incised plate urethroplasty in primary distal penile hypospadias: prospective comparative study with the classic Snodgrass repair

Background To compare the outcomes between classic tubularized incised plate (C-TIP), known as Snodgrass urethroplasty, and grafted TIP (G-TIP) in the repair of primary distal penile hypospadias. Methods Parents of all children presented to our tertiary care institution with primary distal penile hypospadias were asked to participate in this study. Patients were equally randomized using closed envelope method into two groups; Group A underwent repair using G-TIP and Group B underwent repair using the C-TIP. Circumcised cases and/or cases with penile chordee > 30 degrees were excluded from this study. Urethral catheter was kept for 7 to 10 days after surgery. The success rate and cosmetic outcomes assessed by HOSE score were evaluated at 6-month postoperatively. Results A total of 55 patients were recruited in each group. One hundred and seven patients of the 110 patients (54 and 53 in groups A and B, respectively) were evaluated at 6-month postoperatively using HOSE score. All preoperative data were comparable in both groups. Success was documented in 49/54 patients (90.7%) in group A. The five failures were secondary to two cases of glans dehiscence and three cases of residual postoperative chordee. Whereas, success was documented in 48/53 patients (90.5%) in group B. Complications were: a case of meatal stenosis, three cases of fistula, and a case of combined meatal stenosis and fistula. The HOSE score was comparable between the two groups (15.4 ± 1.09 vs. 15.6 ± 0.55; p = 0.29). However, the operative time was statistically longer in the G-TIP compared with the C-TIP (91.4 ± 6.2 min vs. 85.2 ± 6.3 min; p < 0.001), respectively. Conclusion The G-TIP urethroplasty provided comparable results with C-TIP in terms of cosmoses, success rate, and complications. However, G-TIP was accompanied with significantly longer operative time.

Efficacy of preoperative testosterone therapy in hypospadias: a systematic review and meta-analysis

Background Bleeding, hematoma, edema, wound infection, and scar formation are the common problems linked with hypospadias reconstruction. Hormone treatment is recommended before surgical treatment to improve intraoperative circumstances. However, no meta-analysis has explored the effectiveness and side effects of testosterone treatment before surgery in hypospadias. Main body of the abstract The purpose of this paperwork is to evaluate the impact of preoperative testosterone treatment in hypospadias based on clinical data from published trials. This study searched MEDLINE, Science Direct, and the Cochrane Library without regard to year. However, only English journals were included, with a manual search using the Preferred Reporting Items for Systematic Reviews and Meta-analysis of Observational Studies in Epidemiology Guidelines supplementing the search. In this meta-analysis, five papers were considered. Two of these investigations were multicenter randomized clinical trials. Two of the studies were prospective, with a median follow-up of varying lengths. A retrospective investigation was conducted. There were 585 patients in all that took part in this trial. After surgery, the complication rate was measured in both the intervention and control groups, including meatal stenosis, fistula, glans dehiscence, scarring, reoperation rate, urethral diverticulum, fine pubic hair, and sexual precocity. The only significant difference between the intervention and control groups was that the intervention group had a decreased frequency of glans dehiscence following surgery (OR 0.40 with the 95% CI of 0.17 until 0.97). Conclusions This study discovered that a patient who got testosterone before surgery had a considerably decreased complication risk for glandular dehiscence. Reoperation rate, urethral-cutaneous fistula, meatal stenosis, and penile scarring in children with hypospadias, on the other hand, revealed no significant difference in the testosterone-treated group against the control group.

Meatal Stenosis and Atopic Condition: A Pilot Study Demonstrating a Possible Unidentified Etiology

Meatal stenosis (MS) is known as one of the most frequent complications of circumcision. In the present study, we aimed to find any possible relationship between MS and allergic disorders. A total of 36 children with a mean±SD age of 5.84±2.03 years were referred with MS and an atopic background even in themselves or in one of their family members (Group A). There were also age-matched controls with a mean±SD age of 5.70±2.17 years who were referred to our center with allergic symptoms and no urinary complaints (Group B, n=17). The RIDA qLine allergy and allergy explorer (ALEX) tests were performed for all patients to find possible allergen sensitization. Laboratory findings revealed that IgE-sensitization to the main food and aeroallergens in Group A (with the chief complaint of MS in whom a mild atopic condition was found during concise medical history taking) were very similar to the control group with no significant difference (except for ryegrass which was higher in the control group). Although total IgE level was considerably higher in group B compared to group A, food sensitization to cow’s milk and ß-lactoglobulin was higher in asthmatic patients of group A compared to the controls. It seems that not all patients with MS should be considered as a complication of circumcision and undergo a surgical procedure for correction of the stenosis. Further investigations are required to determine the role of concise medical history taking and proper treatment of the allergic disorder to reduce failed surgical attempts in atopic boys with MS.

Reconstructive Techniques of Primary Distal Penile Hypospadias: A Meta-Analysis Study of Last 10 Years

Background Hypospadias is one of the most common congenital anomalies affecting males worldwide, with distal variants representing up to 70% of all cases. Several surgical techniques are adopted for distal hypospadias repair. However, there is still much controversy about the ideal technique. Objectives The aim of this study is to compare between the most popular reconstructive techniques for distal penile hypospadias repair. Highlighting their effectiveness, in term of success rate as well as the risk of postoperative complications. Methods For this systematic review, PubMed/Medline and ScinceDirect online databases were searched using the keywords ‘distal hypospadias, complications and outcome’. Inclusion criteria were primary repairs; distal hypospadias; pediatric case series and standard techniques. Abstracts of articles identified were reviewed, and then relevant articles were retrieved in full. Papers were only included if data on at least one of the main outcome measures was obtainable, which are postoperative fistula, meatal stenosis and glanular dehiscence. Data were pooled using CMA software, effect sizes were reported as event rates with 95% confidence intervals (CI) been calculated for each outcome. Results A total of 25 studies, which included 4572 patients, met the inclusion criteria. The tubularised incised plate (TIP) was the most commonly adopted procedure followed by the peri-meatal flap (Mathieu). Few studies reported data for other techniques like onlay flap, Thiersch-Duplay, meatal advancement and MAGPI procedures, in addition to urethral mobilization technique. The overall incidence of main complications was 10.5% with comparable results among different techniques. The results are in favor of urethral mobilization and TIP procedures over Mathieu regarding the incidence of both meatal stenosis and post-operative fistula. Overall, the quality of the included studies was determined to be satisfactory. Conclusion Compared with Mathieu technique, urethral mobilization and the TIP procedure for distal penile hypospadias (DPH) reconstruction were associated with a lower risk of overall complications specifically postoperative fistula and meatal stenosis.

Meta Analysis Study of Complications Following Repair of Mid Penile Hypospadius using Different Surgical Techniques

Background Hypospadias is one of the most common congenital defects affecting the external male genitalia. The incidence is 1 in 250 male newborns, although its incidence seems to be increasing. Hypospadias is defined as an insufficient development of the urethral fold and the ventral foreskin, with or without penile curvature. The urethral opening is located more proximally anywhere between the tip of the penis and the perineum. Aim of the Work The aim of this study is to determine the best surgical technique with the least complications for repair of mid-penile hypospadias. Materials and Methods This systematic review and meta-analysis was performed in accordance to the recommendations of the Meta-analysis of Observational Studies in Epidemiology (MOOSE) statement. MOOSE is a reporting checklist for Authors, Editors, and Reviewers of Meta-analysis of interventional and observational studies. According to International committee of medical journal association (ICJME), reviewers must report their findings according to each of the items listed in those checklists. Results Fistula is less common after Preputial island flap technique. Fistula is more common with Modified koyanagi technique. Meatal stenosis is less common after Mathieu and Preputial island flap techniques. Meatal stenosis is more common after TIP technique. Wound Dehiscence is not common after lateral based flap and modified koyanagi and Onlay island flap techniques. Neourethral Stricture is not common after lateral based flap and Mathieu and Onlay island flap techniques. Conclusion The Mathieu and Preputial island flap techniques for mid-penile hypospadias reconstruction are associated with a significantly lower risk for postoperative urethral stricture and may be the preferred method for hypospadias. However, the clinical implications of the results can be discussed because the risk of stricture in all procedures was low. The implications for research are obvious because there had been no studies that provided firm guidelines on the best method for the operative intervention for hypospadias. Further trials are still needed to confirm our findings.

Comparison of Modified Mathieu versus Standard Tubularised Incised-Plate Urethroplasty for Distal Hypospadias Repair

Objective: To compare the outcomes of modified Mathieu versus standard tubularised incised-plate urethroplasty for distal hypospadias repair. Materials and Methods: This prospective comparative study was conducted on 54 cases affected by distal hypospadias presenting to Institute of Kidney Disease, Hayatabad, Peshawar form February 2015 to June 2020. The inclusion criteria was patients with distal hypospadias (coronal, sub-coronal, or distal penile), age range of 15 to 60 months. Cases with severe chordee/ventral curvature, history of previous hypospadias repair, and poorly developed urethral plate were excluded. The patients with distal hypospadias were divided into two equal groups: in-group I repair done with Mathieu procedure plus incision of the urethral plate (modified Mathieu) and in-group II repair was performed with Tubularized Incised Plate (TIP). The principal author performed functional and cosmetic assessment at follow up visits which includes; denvo meatus; size and pressure of the stream; and complications like meatal stenosis, urethral cutaneous fistula. Fisher Exact test was used to compare categorical variables between the two groups and student t test for continuous variables. Results: The mean age of the study was 38.13±12.55 months. The operating time was less in TIP than modified Mathieu procedure statistically (P=0.036, 95% CI=0.315, 9.02). In modified Mathieu procedure the sprayed stream of micturition was higher (n=4, 14.8%) while in TIP procedure the frequency of narrow stream was higher (n=4, 14.8%). The difference was statistically significant (P=0.054). Only in modified Mathieu procedure the meatus shape was round in 4 (14.8%) cases and the results were statistically different (P=0.038). Post-operative fistula was higher TIP (n=6, 22.2%) than modified Mathieu (n=1, 3.7%) statistically (P=0.043). Only in TIP procedure postoperative meatal stenosis was found in 5 (18.5%) and the difference was statistically significant (P=0.019). Conclusion: The modified Mathieu technique can improve the cosmetic outcome through creation of slit-like meatus, low incidence of fistula and meatal stenosis than tubularized incised plate urethroplasty in the repair of distal hypospadias.

Comparing Mathieu and Tubularized Incised-Plate Urethroplasties for Repairing Distal Penile Hypospadias: A Single-Center Experience with Long-Term Outcome

Background: Hypospadias is a congenital anomaly on the penis, in which the meatal orifice opens ventrally and proximal to the tip of the penis. In this regard, two common treatment methods are tubularized incised-plate urethroplasty (TIP) and the Mathieu incised-plate (MIP) technique. The present study aimed to compare the early and long-term outcomes of TIP and MIP among patients with distal penile hypospadias. Objectives: The study was also to evaluate the postoperative functional outcome of hypospadias over a long-term follow-up. Methods: Fifty-nine patients were randomly selected and assigned to two groups (TIP (n = 31) and MIP (n = 28)). Demographic information, preoperative findings, and postoperative complications were collected from the two groups. The Hypospadias Objective Scoring evaluation (HOSE) questionnaire and uroflowmetry were obtained to evaluate the long-term outcome of hypospadias repair. Results: The success rates of the surgical TIP and MIP techniques were 71.0% and 82.1%, respectively. Postoperative complications in the TIP group were three (9.7%) distal UCF and four (12.9%) meatal stenosis. In the MIP group, two (7.1%) and three (10.7%) patients suffered from distal UCF and meatal stenosis, respectively. Moreover, 89.3% of the patients in the MIP group and 80% of the patients in the TIP group had acceptable HOSE. Regarding the uroflow rates in the MIP group, 12% and 58% of the participants were below the 5th percentile and above the 25th percentile, respectively. Concerning the uroflow rates of TIP, 32% of the patients were below the 5th percentile, and 18% of the participants were above 25th percentile. Conclusions: Although there have been some reports on the superiority of TIP, we found these two techniques at approximately equal levels with a slightly higher success rate for the MIP regarding the early outcomes. With the exception of the long-term outcomes in cosmetic and functional evaluation, MIP is superior to TIP.

Comparison of Dartos flap and spongioplasty in Snodgrass urethroplasty in distal penile hypospadias

BackgroundHypospadias surgery has been continuously evolving, although there is no single technique which can be said to be perfect and suitable for all types of hypospadias. Tubularized incised plate (TIP) urethroplasty (Snodgrass procedure) is presently the most common surgical procedure performed for distal penile hypospadias (DPH). The aim of this study was to compare the outcome of TIP urethroplasty using Dartos flap (DF) and spongioplasty as second layer in DPH.MethodsA total of 30 patients of DPH were repaired using TIP urethroplasty with DF or spongioplasty as second layer from January 2017 to June 2018. Out of 30 patients, TIP with DF was done in 15 patients (group A) and TIP with spongioplasty was done in the remaining 15 patients (group B). Preoperative mean age and weight were comparable in both groups. Postoperative complications, namely, postoperative edema, residual chordee, urethrocutaneous fistula (UCF), meatal stenosis and final cosmesis, were recorded.ResultsIn both groups, complications included postoperative edema (Gp A-1Gp B-1), residual chordee (Gp A-1, Gp B-1), UCF (Gp A-3, Gp B-4), meatal stenosis (Gp A-1, Gp B-5) and poor cosmesis (Gp A-3, Gp B-4). Wound infection was managed with appropriate antibiotics, and meatal stenosis responded to calibration in five patients.Although it seems that DF has a better outcome clinically, the difference between the two techniques was statistically not significant.ConclusionDF as an additional cover to TIP is associated with an acceptable complication and has good cosmesis compared with spongioplasty; however, the difference is not statistically significant.