Search PubMed⌕ Search

Biomedical subjects

Vinay Kalsi

Publications and source records attributed to Vinay Kalsi.

7 recordsLinked to original sources

Quality of life changes in patients with neurogenic versus idiopathic detrusor overactivity after intradetrusor injections of botulinum neurotoxin type A and correlations with lower urinary tract symptoms and urodynamic changes.

OBJECTIVE: Little published data exist on the effect of intradetrusor botulinum neurotoxin type A (BoNT/A) on the quality of life (QOL) of patients with overactive bladder. We examined post-BoNT/A QOL changes of patients with neurogenic detrusor overactivity (NDO) in comparison to those with idiopathic detrusor overactivity (IDO), and their correlations with respective changes in lower urinary tract symptoms (LUTS) and urodynamic parameters. METHODS: Patients with urodynamically proven intractable DO were assessed for changes in QOL 4 and 16 wk after treatment with intradetrusor BOTOX injections (NDO 300U; IDO 200U) using the short forms of the Urinary Distress Inventory (UDI-6) and Incontinence Impact Questionnaire (IIQ-7). Percent changes in total QOL score were correlated to respective changes in clinical parameters recorded by bladder diaries and voiding cystometry. RESULTS: Forty-eight treated patients (32 NDO, 16 IDO) had QOL data in at least one follow-up. Highly significant decreases (p < 0.0001) in mean +/- standard error QOL score at 4 wk were maintained at 16 wk for both the NDO and IDO subgroups. Percent improvement in QOL score was similar for NDO versus IDO at 4 (67.6 +/- 4.5 versus 70.3 +/- 7.7, p = 0.74) and 16 wk (65.2 +/- 5.5 versus 71.9 +/- 8.8, p = 0.51). Percent changes in QOL score of the whole patient group correlated with changes in 24-h micturition frequency, number of voids associated with urgency, and number of urge incontinence episodes, but not with urodynamic parameters. CONCLUSIONS: Intradetrusor BoNT/A produces comparable, significant improvements in the QOL of patients with either NDO or IDO at least up to 16 wk after treatment. In contrast to urodynamic parameters, changes in LUTS appear to be the major determinants of improvements in the patients' QOL.

Adult↗

Improving the global management of the neurogenic bladder patient: part II. Future treatment strategies.

BACKGROUND: Patients with neurogenic bladder represent a small fraction of the total overactive bladder population. As a consequence, development of new therapies in this area has largely focused on idiopathic urinary incontinence. The absence of data for patients with neurological disease has far-reaching implications, affecting reimbursement and physicians' willingness to prescribe therapies, and limiting access of potential valuable treatments to patients whose lives are significantly impaired by inadequately managed bladder symptoms. SCOPE: The range of new therapies is increasing. Although many reviews of the overall safety, efficacy and mode of action of such treatments are available, there is limited information on how these treatments will best be used in clinical practice. We considered the current benefits and limitations of the various new licensed and unlicensed therapies and what role each would have in the future management of neurogenic urinary incontinence. CONCLUSIONS: A wide range of new treatments have been investigated for the management of overactive bladder; few, however, have been evaluated extensively in neurogenic urinary incontinence. Further studies are required to determine the optimal dosing regimes and formulations for individual sub-populations of neurogenic bladder patients and to determine the cost-effectiveness of these interventions. With the current experience available, two treatment algorithms for a subset of patients with neurological disease have also been proposed, which suggest at which stage of management and in which patients individual therapies for neurogenic urinary incontinence could be used.

Algorithms↗

Improving the global management of the neurogenic bladder patient: part I. The complexity of patients.

BACKGROUND: The management of urinary incontinence in patients with neurological disease is complex. Physicians face a multitude of challenges related to progression of the primary condition, the presence of a diversity of other related and unrelated symptoms, the safety, efficacy and tolerability issues associated with multiple therapies being required and the changing need for collaboration with other specialities. SCOPE: Current guidelines produced by the urological communities, as well as the disease-focused organizations, aim to standardize care in their specific group of patients. A passive approach to implementation, however, means that guidelines produced are all too frequently not readily available to, read by or followed by the wider audience. In addition, each speciality has its own guidelines and a different view of the primary focus of care in neurological patients, which may lead to variations in recommendations and, subsequently, in clinical practice. A review of current urological and disease specific guidelines was made to evaluate differences between the published guidance between the specialities and within urology itself. CONCLUSIONS: Although availability of effective therapies remains a cornerstone of neurogenic bladder treatment, consideration must also be given to the non-pharmacological and surgical issues related to the global management of this population. Improved cross-speciality interactions and development of patient-specific treatment and follow-up plans, which are in keeping with the current guidelines of each speciality involved, may serve to enhance physicians' understanding of the importance of effective urinary incontinence treatment as well as the overall management of the patient.

Europe↗

Cost-consequence analysis evaluating the use of botulinum neurotoxin-A in patients with detrusor overactivity based on clinical outcomes observed at a single UK centre.

OBJECTIVE(S): This study aimed to assess the resource utilisation, health benefits and cost-effectiveness of intra-detrusor injections of botulinum neurotoxin-A (BoNT/A) in patients with overactive bladder (OAB). METHODS: 101 patients with urodynamically-proven detrusor overactivity of either neurogenic (NDO; n = 63) or idiopathic (IDO; n = 38) origin received intra-detrusor injections of 200-300 units of BoNT/A in 20-30 ml saline as part of a research protocol. Twenty-nine patients received repeat injections after 7-26 months. Symptom severity and urodynamic parameters were assessed at 0, 4 and 16 weeks. The cost of therapy was quantified based on the NHS resources used by typical patients and was used to calculate the cost-effectiveness of BoNT/A compared with standard care from the perspective of the UK NHS. RESULTS: In an intent-to-treat analysis, 82% of patients showed a 25% or greater improvement in at least two out of five parameters (urinary frequency, urgency, urgency incontinence episodes, maximum cystometric capacity and maximum detrusor pressure) four weeks after treatment, reducing to 65% after 16 weeks. A 50% or greater improvement in the frequency of micturition, urgency or urgency incontinence was seen in 73% of patients at four weeks and 54% at 16 weeks. There were no significant differences between IDO and NDO patients in the proportion meeting these endpoints. Therapy cost pounds 826 per patient, with a cost-effectiveness ratio of pounds 617 per patient-year with > or = 25% clinical improvement. CONCLUSION(S): This study demonstrates that intra-detrusor BoNT/A is an effective treatment for OAB that is highly likely to be cost-effective in both idiopathic and neurogenic disease.

Adult↗

Therapy Insight: bladder dysfunction associated with multiple sclerosis.

Bladder dysfunction is a common problem for patients with multiple sclerosis. The severity of symptoms often correlate with the degree of spinal cord involvement and, hence, the patient's general level of disability. The emphasis of management is now mainly medical and is increasingly offered by nonurologists. Treatments can be highly effective, relieving patients of what are otherwise very troublesome symptoms that would compound their neurological disability. This article gives an overview of the neural control of the bladder, followed by an explanation of the pathophysiology of detrusor overactivity secondary to neurological disease. A review of methods available for treating bladder dysfunction in multiple sclerosis then follows. The treatment options for this disorder are largely medical and include established first-line measures such as anticholinergics, clean intermittent self-catheterization and the use of desmopressin, as well as potential second-line agents, such as cannabinoids, intravesical vanilloids and intradetrusor botulinum neurotoxin type A. The diminishing role of surgical intervention is also discussed.

Algorithms↗

A comparison between the response of patients with idiopathic detrusor overactivity and neurogenic detrusor overactivity to the first intradetrusor injection of botulinum-A toxin.

PURPOSE: Several studies have shown that intradetrusor injections of botulinum neurotoxin type A (BoNT/A) may effectively treat intractable spinal neurogenic detrusor overactivity (NDO), but fewer reports exist on the use of BoNT/A in patients with idiopathic detrusor overactivity (IDO). The purpose of this study was to investigate whether comparable efficacy could be displayed in the response of patients with IDO to those with NDO. MATERIALS AND METHODS: In a prospective, open label study, patients with urgency, and/or urgency incontinence due to urodynamically proven intractable detrusor overactivity received 300 units (NDO) or 200 units (IDO) of Botox injected into the bladder with a minimally invasive outpatient technique. Urodynamic maximum cystometric capacity and maximum detrusor pressure during filling, frequency of voids (frequency), number of incontinence episodes (leak) and number of voids associated with urgency per 24 hours (urgency) from 4-day voiding diaries were compared between the 2 groups at baseline and for changes at 4 and 16 weeks after treatment. RESULTS: A total of 44 patients with spinal NDO and 31 with IDO were treated. At 16 weeks, mean +/- standard error maximum cystometric capacity increased from 229.1 +/- 24.8 to 427.0 +/- 26.9 ml, p <0.0001 in NDO and from 193.6 +/- 24.0 to 327.1 +/- 36.1 ml, p=0.0008 in IDO. Maximum detrusor pressure during filling decreased from 60.7 +/- 6.8 to 26.1 +/- 3.7 cm H2O, p <0.0001 in NDO and from 62.1 +/- 10.8 to 45.1 +/- 8.1 cm H2O, p=0.027 in IDO. Frequency decreased from 12.3 +/- 0.7 to 6.6 +/- 0.6 voids per 24 hours, p <0.0001 in NDO and from 13.6 +/- 1.1 to 8.3 +/- 0.7, p=0.0002 in IDO. Leak decreased from 3.9 +/- 0.5 to 0.7 +/- 0.2 incontinence episodes per 24 hours, p <0.0001 in NDO and from 3.2 +/- 0.8 to 0.6 +/- 0.3, p=0.0017 in IDO, and urgency decreased from 7.5 +/- 0.6 to 1.44 +/- 0.3 episodes per 24 hours, p <0.0001 in NDO and from 10.9 +/- 1.7 to 4.9 +/- 1.1, p <0.0001 in IDO. The 2 groups were comparable for baseline data, but percent improvement in urgency was greater in patients with NDO at 4 weeks (78.2% vs 56.3%, p=0.019) and 16 weeks (78.3% vs 50.7%, p=0.013). Of patients with NDO 69% required self-catheterization de novo posttreatment compared with 19.3% of those with IDO. CONCLUSIONS: Patients with intractable IDO respond to intradetrusor BoNT/A with equally significant improvements in urodynamic and lower urinary tract symptom parameters as those with spinal NDO, despite the lower dose of toxin used.

Adult↗