Predictors of Poor Response and Adverse Events Following Botulinum Toxin A for Refractory Idiopathic Overactive Bladder: A Systematic Review.

CONTEXT: Botulinum toxin A (BTX-A) injections are effective in managing refractory overactive bladder (OAB). However, some patients exhibit a poor response and/or experience adverse events (AEs) such as voiding dysfunction necessitating clean intermittent self-catheterisation (CISC) and urinary tract infections (UTIs). OBJECTIVE: To systematically evaluate whether poor response/AEs to BTX-A for idiopathic OAB are predictable. EVIDENCE ACQUISITION: MEDLINE, EMBASE, and Google Scholar database were searched in March 2020. Studies reporting predictive factors for poor response or AEs were included. Two reviewers independently screened articles, searched references, and extracted data. Risk of bias (Quality in Prognosis Studies [QUIPS]) and quality of evidence (Grading of Recommendations Assessment, Development and Evaluation [GRADE]) tools were utilised. EVIDENCE SYNTHESIS: Of 1579 articles, 17 met the inclusion criteria. These were cohort studies with predominantly level 3 evidence. Factors including male gender, frailty, comorbidity, increasing age, smoking, baseline leakage episodes, and various urodynamic parameters (bladder outlet obstruction index [BOOI], high pretreatment maximum detrusor pressure, and poor bladder compliance) were proposed as predictors of nonresponse. In predicting CISC use, male gender, comorbidity, increasing age, number of vaginal deliveries, hysterectomy, and urodynamic parameters (bladder capacity, postvoid residual volume, projected isovolumetric pressure value, bladder contractility index, and BOOI) were implicated. Female gender, males with their prostates in situ, and CISC were suggested to increase UTIs after BTX-A. CONCLUSIONS: This review has identified factors that may predict poor response/AEs following bladder BTX-A and help in counselling of patients. Overall, the quality of individual studies included was poor, limiting the certainty of evidence reported. Larger-scale, better-designed trials with uniform definitions of poor response are required to confirm these preliminary findings. PATIENT SUMMARY: This review assessed whether we could predict poor response or side effects to bladder botulinum toxin A injections in managing overactive bladder. Many different factors based on the patient, medical conditions, previous surgery, and pretreatment investigations were identified. However, the quality of included studies was generally poor, limiting their conclusions.

"What Goes Up Must Come Down": Laparoscopic Retrieval of a Migrated Intrathoracic Kidney and Repair of Recurrent Symptomatic Diaphragmatic Hernia.

Background: Congenital diaphragmatic hernia is a rare condition describing a developmental defect of the diaphragm. It is managed surgically in the neonatal period by reduction of the herniated viscera followed by repair of the defect. We present a laparoscopic repair of a Bochdalek diaphragmatic hernia recurrence with retrieval and nephropexy of a migrated kidney with reduced function from its ectopic thoracic position. The complexities of managing this rare occurrence and lessons from this surgical challenge are discussed. Case Presentation: A 21-year-old primigravida presented with a 3-day history of right upper quadrant pain and increasing dyspnea. Of note, she had undergone a congenital right-sided diaphragmatic hernia repair as an infant. An MRI revealed a recurrent diaphragmatic defect with ectopic migration of the right kidney and bowel into an intrathoracic position. Due to worsening dyspnea, she underwent prompt laparoscopic repair of her recurrent diaphragmatic hernia. Subsequently, she underwent a planned cesarean section to control her intra-abdominal pressures and reduce the risk of hernia repair failure. Conclusion: Raised intra-abdominal pressures during pregnancy in patients with prior congenital hernia repair can result in recurrence and migration of peritoneal and retroperitoneal contents into the chest. In cases of renal unit migration, the primary concern must be to restore the anatomical position of a functioning kidney. Multidisciplinary specialist involvement in a tertiary referral base is crucial to an effective outcome.

Cytoreductive nephrectomy in the era of targeted therapies: a review.

In the pre-targeted therapy era, palliative cytoreductive nephrectomy combined with cytokine immunotherapy was the standard treatment protocol for the management of metastatic renal cell carcinoma. The introduction of targeted therapies has improved response rates, median survival and overall prognosis when compared to immunotherapy. The role of cytoreductive nephrectomy in providing an independent survival advantage when used alongside immunotherapy has been demonstrated by two randomised controlled trials. However, with the new shift in improved treatment outcomes from cytokine immunotherapy to targeted therapies, the continuing role of cytoreductive nephrectomy as a viable surgical treatment method remains controversial.

Persistence with mirabegron therapy for overactive bladder: A real life experience.

AIMS: To evaluate persistence rates of patients receiving mirabegron therapy for overactive bladder (OAB) within our institution over a 6 month period, identify determinants of early discontinuation of therapy, and assess overall patient satisfaction with treatment. METHODS: Hospital prescription data were analyzed in order to identify all patients who had been prescribed mirabegron in our institution. Case notes were retrospectively reviewed to obtain demographic data, previous treatments for OAB, reasons for discontinuation of previous treatments, and duration of treatment with mirabegron. Overall satisfaction with treatment was assessed using the OAB Satisfaction with Treatment Questionnaire (OAB-SAT-q). RESULTS: One hundred and ninety-seven patients were prescribed mirabegron. Of these, 81% previously discontinued anticholinergic therapy, 14% had previously received intravesical botulinum toxin A therapy, and 19% were prescribed mirabegron first-line. At 3 months 69% persisted with treatment which fell to 48% by 6 months. The commonest reason for discontinuation was lack of efficacy, followed by adverse effects. Overall 32% of patients preferred mirabegron over previous treatments and only 39% were satisfied with mirabegron therapy. CONCLUSION: Persistence rates with mirabegron in this group of patients for OAB are satisfactory. The commonest reasons for discontinuation are unmet treatment expectations and adverse effects. We had very few treatment-naïve patients and so further studies are required to assess mirabegron persistence rates with longer-term follow up, as first-line treatment and in different groups of OAB severity. Neurourol. Neurourol. Urodynam. 36:404-408, 2017. © 2015 Wiley Periodicals, Inc.

Epididymal papillary cystadenocarcinoma metastasising to the testis in a patient with infertility managed with Onco-microTeSE.

Papillary cystadenomas of the epididymis are known to occur in association with Von Hippel-Lindau (VHL) disease. The development of a papillary cystadenocarcinoma, its malignant counterpart, is rare with only a few sporadic cases reported in the literature. Metastatic deposits are exceedingly uncommon; in fact, only a single case report has documented metastases to the paraureteral region, but metastases to the testis have never been reported. A 43-year-old gentleman with VHL disease presented with non-obstructive azoospermia, a right epididymal mass, and an atrophic surgically corrected undescended left testis. The epididymal mass was reported as a papillary cystadenocarcinoma on biopsy. The patient was managed with a radical inguinal orchidectomy and bench microTeSE with successful sperm retrieval. Metastatic papillary cystadenocarcinoma of the epididymis to the testis has never been previously reported. This case was managed by radical orchidectomy and subsequent onco-microTeSE, allowing safe oncological treatment and optimal fertility preservation.