Relationship between the number of lymph nodes dissected and prognosis in muscle-invasive bladder cancer in the era of neoadjuvant chemotherapy.

OBJECTIVES: Many studies have shown a good prognostic association with a large number of lymph node dissections. However, most of these studies did not include patients who have received neoadjuvant chemotherapy. The purpose of this study was to verify the relationship between survival outcomes and the number of lymph nodes removed during radical cystectomy in patients with muscle-invasive bladder cancer in the era of neoadjuvant chemotherapy. METHODS: This retrospective study considered patients who were diagnosed with clinical ≥T2N0M0 muscle-invasive bladder cancer and treated with radical cystectomy at the Nagoya University Hospital and affiliated hospitals from January 2004 to December 2019. We excluded patients who had a history of upper tract urothelial cancer or non-urothelial carcinoma. The association between prognosis and the number of lymph nodes removed was investigated. RESULTS: We retrospectively enrolled a total of 477 patients. The mean number of lymph nodes dissected was 14. Two hundred and twenty-six patients (47.4%) received neoadjuvant chemotherapy. More extensive lymphadenectomy (≥15 lymph nodes) correlated with better 5-year overall survival across all patients (68% vs. 57%, p = 0.01). In patients who received neoadjuvant chemotherapy, there was no difference in overall survival according to the number of dissected lymph nodes (66% vs. 71%, p = 0.433). In patients who did not receive neoadjuvant chemotherapy, ≥15 lymph nodes dissected was associated with significantly better overall survival (70.3% vs. 46.9%, p < 0.01). CONCLUSIONS: No association between more aggressive lymph node dissection and prognosis was found in patients who underwent neoadjuvant chemotherapy. Conversely, extended lymph node dissection is desirable for patients who have not received neoadjuvant chemotherapy.

Mesh exposure after transvaginal mesh prolapse surgery: Out of permissible range?

OBJECTIVES: To investigate the prevalence of postoperative complications after transvaginal mesh prolapse surgery, and whether modified transvaginal mesh prolapse surgery (without transobturator arms or posterior mesh) has less prevalence of mesh exposure compared with conventional transvaginal mesh prolapse surgery. METHODS: Medical charts were retrospectively examined for 2648 patients who underwent transvaginal mesh prolapse surgery in a general hospital (2006-2017). Conventional transvaginal mesh prolapse surgery (Prolift-type, n = 2258) was used, with a shift from 2015 to modified transvaginal mesh prolapse surgery (Uphold-type, n = 330). Patients were instructed to have >2 years of follow up and to report if they had problems regarding the operation. RESULTS: The prevalence of mesh exposure was 34 out of 2648 (1.28%); 18 vagina (0.68%), 10 bladder (0.38%), two ureter (0.08%) and four rectum (0.15%). The modified transvaginal mesh prolapse surgery group had only one case with vaginal exposure. Vaginal exposure was managed transvaginally or followed by observation. Rectal exposure was managed transvaginally without colostomy. Bladder exposure was managed by transurethral resection with saline. Open ureterocystostomy was carried out to treat ureteral exposure. In the conventional transvaginal mesh prolapse surgery group, three cases of ureteral stenosis and one case with vaginal evisceration of the small intestine were managed transvaginally. The prevalence of postoperative chronic pain was 13 out of 2648 (0.49%; with one patient in the modified transvaginal mesh prolapse surgery group). The patients underwent pharmacotherapy, and one patient underwent additional surgical treatment. CONCLUSIONS: The reoperation rate as a result of complications after transvaginal mesh prolapse surgery seems to be low. The reoperation rate as a result of prolapse recurrence is also low. A shift from conventional transvaginal mesh prolapse surgery to modified transvaginal mesh prolapse surgery might contribute to a further decrease in the risk of complications.

Transvaginal repair of a rectovaginal fistula caused by transvaginal mesh prolapse surgery.

Introduction: Transvaginal mesh surgery can cause mesh complications including rare rectovaginal fistula. We report a case of a rectovaginal fistula treated transvaginally without colostomy. Case presentation: A 57-year-old female was referred to us due to post-hysterectomy prolapse and had transvaginal mesh surgery. She underwent transvaginal hysterectomy because of uterine prolapse at age 33 and had taken steroids to treat pemphigus. Two years later, she developed vaginal bleeding and discharge. Transvaginal mesh removal was planned to treat vaginal mesh exposure, but immediately before the operation digital rectal examination revealed rectovaginal fistula. Mesh removal and fistula closure were performed transvaginally without colostomy. Three years of follow-up showed no recurrence of mesh exposure, fistula, or prolapse. Conclusion: Rectovaginal fistula following mesh surgery may be treated transvaginally without colostomy if infection is minimal. To evaluate mesh exposure on the posterior vaginal wall, rectal examination should be done along with vaginal examination.

Post-bath incontinence (bathwater incontinence) can be managed with behavioral therapy.

Introduction: We encountered six post-bath incontinence cases caused by bathwater entrapment in the vagina. Case presentation: The age of onset was distributed from 16 to 78 (average 38) and five out of six patients were parous. Three patients developed post-bath incontinence immediately after vaginal delivery. One patient developed post-bath incontinence after beginning to bathe in a reclined position and another after undergoing transvaginal mesh surgery to treat prolapse. All patients showed dribbling incontinence without urgency limited to within 30 min after bathing. Patients were instructed to put a towel between their legs and apply abdominal pressure to evacuate the entrapped water. Additionally, they were advised to squat in the bathtub to prevent water entrapment. This simple behavioral therapy relieved symptoms. Conclusion: The differential diagnosis of incontinence in women should include entrapped fluid incontinence such as bathwater incontinence, pool water incontinence, and vaginal reflux during micturition.

[PELVIC ORGAN PROLAPSE AND INGUINAL HERNIA AGGRAVATED BY OVARIAN FIBROTHECOMA WITH ASCITES].

We present a case of pelvic organ prolapse and inguinal hernia worsened by a benign ovarian tumor with ascites. A 61-year-old woman was referred to us complaining of feeling of something protruding from her vagina. She was diagnosed with Stage III cystocele. Behavioral therapy was administered as she had only slight subjective symptoms. She visited us eight months later due to a rapid aggravation of cystocele and voiding difficulty. She subsequently developed acute abdominal pain caused by incarcerated inguinal hernia. Abdominal ultrasound, MRI and CT showed a 10.6×9.0 cm pelvic mass with ascites. As an ovarian cancer with peritoneal dissemination was suspected, she immediately underwent total abdominal hysterectomy, bilateral salpingo-oophorectomy and colposuspension. Pathological diagnosis was fibrothecoma, a benign ovarian tumor. Postoperative course was uneventful, and ascites quickly disappeared in a manner similar to Meigs syndrome. Although no procedure was done to manage inguinal hernia, it was unproblematic for 18 months, after that it worsened, necessitating hernial repair. She had no recurrence of prolapse or ascites.Increased intra-abdominal pressure due to abdominal mass or ascites can worsen prolapse and hernial diseases such as inguinal, umbilical, and abdominal hernia. In this case, ovarian fibrothecoma with ascites seemed to be responsible for worsening of the prolapse and inguinal hernia. To conclude, it is important to consider background diseases when examining patients with prolapse and coexisting hernial diseases.

Urethrovaginal fistula 11 years after a bone anchor sling using woven polyester and treatment with a Martius flap.

INTRODUCTION: We encountered a urethrovaginal fistula diagnosed 11 years after a bone anchor sling. CASE PRESENTATION: A 58-year-old woman underwent a bone anchor sling to treat stress urinary incontinence. At age 69, mid-urethral sling was planned because of a recurrent stress urinary incontinence diagnosis, but a urethrovaginal fistula was found immediately before the procedure. After removing woven polyester, the previous sling material, simple fistula closure was carried out but failed. Usage of a vaginal speculum and powerful medical lamps during a stress test revealed leakage from both the urethrovaginal fistula and the external urethral meatus. She underwent another fistula closure using a Martius flap. Subsequently, a 1-h pad test improved from 195 to 5.1 g/h. The remaining mild stress urinary incontinence did not necessitate further treatment. CONCLUSION: Anti-incontinence procedures using synthetic materials can cause urethrovaginal fistula. Attention must be paid to the possibility of urethrovaginal fistula when patients complain of worsened incontinence postoperatively.