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36 result(s) for "Sahai, Arun"
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Nonantibiotic prevention and management of recurrent urinary tract infection
Urinary tract infections (UTIs) are highly prevalent, lead to considerable patient morbidity, incur large financial costs to health-care systems and are one of the most common reasons for antibiotic use worldwide. The growing problem of antimicrobial resistance means that the search for nonantibiotic alternatives for the treatment and prevention of UTI is of critical importance. Potential nonantibiotic measures and treatments for UTIs include behavioural changes, dietary supplementation (such as Chinese herbal medicines and cranberry products), NSAIDs, probiotics, d-mannose, methenamine hippurate, estrogens, intravesical glycosaminoglycans, immunostimulants, vaccines and inoculation with less-pathogenic bacteria. Some of the results of trials of these approaches are promising; however, high-level evidence is required before firm recommendations for their use can be made. A combination of these agents might provide the optimal treatment to reduce recurrent UTI, and trials in specific population groups are required.
Recent advances in the diagnosis and treatment of bladder cancer
Bladder cancer is the commonest malignancy of the urinary tract. In this review, we look at the latest developments in the diagnosis and management of this condition. Cystoscopy and urine cytology are the most important tools in the diagnosis and follow-up of bladder cancer. Various alternatives have been investigated, either to reduce the frequency of cystoscopy, or improve its sensitivity for detection of tumors. These include urine-based markers and point-of-care tests. Narrow-band imaging and photodynamic diagnosis/blue-light cystoscopy have shown promise in improving detection and reducing recurrence of bladder tumors, by improving the completion of bladder resection when compared with standard resection in white light. The majority of patients with a new diagnosis of bladder cancer have non-muscle-invasive bladder cancer, which requires adjuvant intravesical chemotherapy and/or immunotherapy. Recent developments in post-resection intravesical regimens are discussed. For patients with muscle-invasive bladder cancer, both laparoscopic radical cystectomy and robot-assisted radical cystectomy have been shown to reduce peri-operative morbidity, while being oncologically equivalent to open radical cystectomy in the medium term. Bladder-preserving strategies entail resection and chemoradiation, and in selected patients give equivalent results to surgery. The development, advantages, and disadvantages of these newer approaches are also discussed.
Medium- to long-term outcomes of botulinum toxin A for idiopathic overactive bladder
Botulinum toxin A (BoNT-A) has become an important therapeutic tool in the management of refractory overactive bladder (OAB). Over the last decade, there have been growing numbers of patients receiving repeat injections and these outcomes have begun to be reported in large, high-quality cohorts. This article reviews the current evidence for the medium- to long-term use of BoNT-A in adults with idiopathic detrusor overactivity (IDO) receiving repeat injections. We find that medium-term outcomes are encouraging but long-term outcomes are not as extensively reported. There is high-quality evidence that efficacy following the first injection persists across multiple treatment cycles. There are no additional safety concerns from repeat injections up to six treatment cycles. However, there is a need for further data to confirm the efficacy and safety of BoNT-A beyond the follow-up period in the current literature.
Applications of electromotive drug administration in urology
To review all published evidence regarding the use of Electromotive Drug Administration (EMDA) for the management of urological conditions, focusing on efficacy and safety, and highlighting areas that require further study. The PubMed and Medline databases were searched up to July 23, 2019. All studies reporting the use of EMDA to enhance the intravesical administration of therapeutic drugs for urological conditions were included. Two reviewers independently screened all articles, searched the reference lists of retrieved articles, and performed the data extraction. Thirty-two studies were included. The use of EMDA has been reported in the following urological conditions: (1) nonmuscle-invasive bladder cancer (NMIBC); (2) overactive bladder; (3) bladder pain syndrome; (4) radiation cystitis; (5) detrusor acontractility; and (6) for analgesia prior to transurethral procedures. Overall, most studies are nonrandomized trials with small numbers of patients. The use of EMDA is reported to be safe and effective in all these conditions, with the highest level of evidence in NMIBC in the neoadjuvant and adjuvant setting. However, the low overall quality of evidence limits the conclusions that can be reached. The use of EMDA to improve the efficacy of intravesical treatments is promising, but the low overall quality of the evidence base has limited its widespread use. Future studies should compare EMDA to passive diffusion and current standard of care in large, randomized, and long-term studies to determine the efficacy, safety, and cost-effectiveness of this modality.
Is pre-operative urodynamic bladder function the true predictor of outcome of male sling for post prostatectomy incontinence?
PurposeTo investigate pre-operative urodynamic parameters in male sling patients to ascertain whether this might better predict surgical outcomes and facilitate patient selection.MethodsWe performed a retrospective, case notes and video-urodynamics, review of men who underwent AdVanceXP male sling in three London hospitals between 2012 and 2019. Urodynamics were performed in all centres, while retrograde leak point pressure (RLPP) was performed in one centre.ResultsSuccessful outcome was seen in 99/130 (76%) of men who required one pad or less per day. The dry rate was 51%. Pad usage was linked to worse surgical outcomes, mean 2.6 (range 1–6.5) for success vs 3.6 (range 1–10) although the ranges were wide (p = 0.002). 24 h pad weight also reached statistical significance (p = 0.05), with a mean of 181 g for success group versus 475 g for the non-successful group. The incidence of DO in the non-successful group was significantly higher than in successful group (55% versus 29%, p = 0.0009). Bladder capacity less than 250 ml was also associated with worse outcomes (p = 0.003). Reduced compliance was not correlated with outcomes (31% for success groups vs 45% for non-successful group, p = 0.15). Preoperative RLPP was performed in 60/130 patients but did not independently reach statistical significance (p = 0.25).ConclusionUrodynamic parameters related to bladder function—detrusor overactivity and reduced maximum cystometric capacity predict male sling outcomes and may help in patient selection for male sling (or sphincter) surgery; whereas urodynamic parameters of sphincter incompetency (RLPP) were not predictive. Further larger scale studies are required to confirm these findings.
Radical prostatectomy — aftercare should not be an afterthought
Focus on quality of life after prostate cancer is vital to improve patient care. Improved assessment and proactive management of post-treatment functional outcomes is essential. Many aspects of the patients’ aftercare need to be improved in order to set up a clear path following prostatectomy. These improvements will enable a timely and efficient escalation of treatment and ameliorate patients’ survivorship experience.
Bilateral ureteric obstruction during in vitro fertilisation therapy in a patient with complex surgically managed Crohn's disease
A 37-year-old woman receiving in vitro fertilisation (IVF) treatment presented with lethargy, fevers and anuria. Her background included complex surgically managed Crohn's disease and mild right-sided hydronephrosis (with no evidence of obstruction on MAG3 renogram). On examination, she had a distended abdomen with generalised tenderness. Blood tests revealed an acute kidney injury and confirmed sepsis. She was found to have bilateral ureteric obstruction with worsening of the right-sided hydronephrosis and new-onset left-sided hydronephrosis secondary to bilateral ovarian masses, diagnosed as mild ovarian hyperstimulation syndrome (OHSS). She was initially managed with fluid resuscitation, bilateral nephrostomies, antibiotics and supportive management of mild OHSS. She made a good recovery and was discharged after placement of antegrade stents and removal of nephrostomies. On follow-up, following resolution of ovarian hyperstimulation, she has been diagnosed with a right-sided distal ureteric stricture and is awaiting reconstruction. Her left ureteric stent has been removed.
Inheritance in overactive bladder syndrome
Despite the high prevalence of overactive bladder (OAB) syndrome, its pathophysiology remains poorly understood. Twin studies offer a unique opportunity for studying the genetics of this disorder, but trials are limited by heterogeneous patient populations. Improved understanding of genetic factors in OAB will be vital to developing targeted management.
Safety of “hot” and “cold” site admissions within a high‐volume urology department in the United Kingdom at the peak of the COVID‐19 pandemic
Objectives To determine the safety of urological admissions and procedures during the height of the COVID‐19 pandemic using “hot” and “cold” sites. The secondary objective is to determine risk factors of contracting COVID‐19 within our cohort. Patients and methods A retrospective cohort study of all consecutive patients admitted from March 1 to May 31, 2020 at a high‐volume tertiary urology department in London, United Kingdom. Elective surgery was carried out at a “cold” site requiring a negative COVID‐19 swab 72‐hours prior to admission and patients were required to self‐isolate for 14‐days preoperatively, while all acute admissions were admitted to the “hot” site. Complications related to COVID‐19 were presented as percentages. Risk factors for developing COVID‐19 infection were determined using multivariate logistic regression analysis. Results A total of 611 patients, 451 (73.8%) male and 160 (26.2%) female, with a median age of 57 (interquartile range 44‐70) were admitted under the urology team; 101 (16.5%) on the “cold” site and 510 (83.5%) on the “hot” site. Procedures were performed in 495 patients of which eight (1.6%) contracted COVID‐19 postoperatively with one (0.2%) postoperative mortality due to COVID‐19. Overall, COVID‐19 was detected in 20 (3.3%) patients with two (0.3%) deaths. Length of stay was associated with contracting COVID‐19 in our cohort (OR 1.25, 95% CI 1.13‐1.39). Conclusions Continuation of urological procedures using “hot” and “cold” sites throughout the COVID‐19 pandemic was safe practice, although the risk of COVID‐19 remained and is underlined by a postoperative mortality.