Progression Of Overactive Bladder Research Articles

Risk factors associated with overactive bladder severity in patients with type 2 diabetes.

The prevalence of overactive bladder (OAB) is known to be higher in patients with type 2 diabetes (T2DM) however there are not many studies about specific risk factors contributing to its progression among diabetes mellitus (DM) patients, so this study aimed to investigate the risk factors specific to DM that influence the progression of OAB in Syrian population. This cross-sectional study was carried out at five endocrinology centers situated in four Syrian provinces: Damascus, Aleppo, Homs, Hama, and Latakia. The study comprised patients who were diagnosed with both T2DM and OAB and had visited these centers from March 2020 and February 2024. The Arabic version of the OAB Symptom Score (OABSS) scale was used to categorize the participants based on the severity score into two groups: the mild OAB group and the moderate-severe OAB group. A logistic analysis was conducted to assess the risk factors associated with the progression of OAB among patients with diabetes. Among the 186 patients diagnosed with both DM and OAB, significant distinctions were found between the two groups concerning the severity of OAB, age, duration of diabetes, symptomatic diabetic peripheral neuropathy (DPN), and ankle reflex (p < 0.05). Furthermore, a multivariate analysis revealed that age (odds ratio [OR] 1.07, 95% confidence interval [CI] 0.68-1.58), duration of diabetes (OR 2.14, 95% CI 1.75-3.74), and symptomatic DPN (OR 2.47, 95% CI 1.17-3.54) independently acted as risk factors for the advancement of OAB. The progression of OAB in Syrian patients with diabetes is closely associated with the severity of DM. Factors such as age, duration of diabetes, and symptomatic DPN are independent predictors of the severity of OAB. Patients who experience symptomatic DPN are at an increased risk of developing OAB.

Prospective follow-up of overactive bladder symptoms in patients with prior SARS-CoV-2 infection.

SARS-CoV-2 infection can result in genitourinary symptoms, such as frequency, urgency, nocturia, and pain/pressure. In this study, we followed the progression of overactive bladder (OAB) symptoms in patients that reported new or worsening OAB symptoms after coronavirus disease-19 (COVID-19) diagnosis. Individuals from a COVID-19 serology study were invited to participate in a follow-up study. Respondents were divided into three groups based on prior COVID-19 testing. Patients scored symptoms retrospectively before the pandemic, at study onset, and prospectively during 12-month follow-up. Genitourinary symptoms were assessed using international consultation on incontinence questionaire for OAB (ICIQ-OAB). Change in ICIQ-OAB scores from baseline were calculated. The minimal important difference of one on ICIQ-OAB is considered a significant change. 26.0% of participants previously had positive COVID polymerase chain reaction (PCR) test (PCR+), 5.6% a positive serology test only (Ser+), and 65.5% were COVID naïve (COVID-). 23.8% of participants reported a significant increase in ICIQ-OAB score at study onset compared to prepandemic. ICIQ-OAB scores were similar at prepandemic but significantly higher at study start (p < 0.001) in PCR+ group. During follow-up, change in ICIQ-OAB scores from baseline remained unchanged for COVID- group, but gradually reduced for PCR+, reaching similar levels as COVID- group by 12 months. By 12 months, 71.4% of PCR+, 42.9% of Ser+, and 68.8% of COVID- participants still reported significant increase in ICIQ-OAB scores. Most COVID-19 patients experienced return of symptoms to baseline, indicative of the potential resolution of COVID-associated cystitis. A subset of cases did not, raising questions about the underlying factors contributing to this outcome. Additional research is needed to assess long COVID on urological health.

Efecto de la electroestimulación del nervio tibial en la musculatura del piso pélvico de pacientes con síndrome de vejiga hiperactiva

Antecedentes y Objetivos: El Síndrome de Vejiga Hiperactiva (svh) presenta alteraciones motoras como hipertonía de la musculatura del piso pélvico (mpp). El objeto del estudio es demostrar las características de la electromiografía de superficie (emgs) del mpp en el svh tratados con electro-estimulación percutánea del nervio tibial (ptns).&#x0D; Material y Método: Estudio prospectivo, observacional, controlado. Se realizó emgs de mpp a 17 voluntarios con svh rebelde a tratamiento, antes, durante la ptns y 72 horas después. Se asignaron 2 grupos: Catorce voluntarios del grupo ptns, y 3 voluntarios del grupo placebo. Se incluyeron pacientes con evolución mínima de 6 meses, frecuencia urinaria de 8 o más, sin toma de medicamentos. Se excluyeron pacientes con urocultivo/espermocultivo positivos, litiasis, biopsia y/o cirugía de órganos pélvicos ó cáncer pélvico, y lesiones del snc. Las variables se analizaron mediante Anova y Tukey pos hoc test, 95% ic, usando el software spss 10.1.&#x0D; Resultados: Media de edad 34.23±12.90 años, media del tiempo de evolución 19.58±12.08 meses, sin diferencia estadística en entre grupos. La diferencia de las medias en el promedio de emg (avgemg) del grupo ptns pre vs trans de 0.125 µV y de pre vs 72 horas de 0.171 µV fueron significativas (p&lt;0.05), mientras que en el grupo placebo la diferencia de las medias avgemg de 0.013 µV y 0.006 µV sin diferencia estadística (p&gt;0.05).&#x0D; Conclusiones: El cambio inmediato sobre la mpp que permanece hasta 72 horas después de la ptns, es un posible mecanismo de acción de neuroplasticidad de la neuromodulación del nervio tibial.

Risk factors associated with the progression of overactive bladder among patients with type 2 diabetes.

AimTo investigate the risk factors specific to diabetes mellitus that influence the progression of overactive bladder in Chinese population.MethodsA total of 457 patients who were diagnosed with overactive bladder and diabetes mellitus at the Department of Endocrinology and Urinary Surgery Center of Zhejiang University Jinhua Hospital were enrolled from July 2015 to July 2018. Patients were assessed using a questionnaire and then divided into two groups according to the severity score: mild overactive bladder group and the moderate‐severe overactive bladder group. Logistic analysis was performed to evaluate the risk factors associated with the progression of overactive bladder in diabetic patients.ResultAmong the 457 patients with diabetes mellitus and overactive bladder, there was a significant difference in the severity of overactive bladder, age, diabetes duration, symptomatic diabetic peripheral neuropathy as well as ankle reflex (P < .05) between the two groups. Moreover, multivariate analysis revealed that age (OR: 1.59, P = .036), duration of diabetes (OR: 1.41, P = .049) and symptomatic diabetic peripheral neuropathy (OR: 2.39, P = .012) were independent risk factors for the progression of overactive bladder.ConclusionIn Chinese diabetic patients, overactive bladder progression is closely related with the severity of diabetes mellitus. Age, diabetic duration and symptomatic diabetic peripheral neuropathy are independent predictors of the severity of overactive bladder. Patients with symptomatic diabetic peripheral neuropathy are at risk of overactive bladder.

Shared Pathophysiology of Detrusor Overactivity and Detrusor Underactivity

Detrusor overactivity (DO) and the associated symptom complex of overactive bladder (OAB) is well-studied with many treatment options. In contrast, detrusor underactivity (DU) and its associated symptom complex, underactive bladder (UAB), is poorly understood. Researchers have proposed explanations that link OAB and UAB with a common pathophysiology. The purpose of this review is to examine concepts and recent underlying research supporting a shared pathophysiology of DO and DU. In 2014, Dr. Michael Chancellor proposed “The Overactive Bladder Progression to Underactive Bladder Hypothesis.” Since then, researchers have conducted several animal and human studies to examine the pathophysiology of OAB and UAB. These studies, which highlight this shared pathophysiology, can be categorized broadly into neurogenic, myogenic, urothelial dysfunction, and idiopathic etiologies. Autonomous bladder micromotions are another proposed mechanism of shared OAB and UAB pathophysiology. UAB is poorly understood in comparison to OAB, yet the concept of a shared pathophysiology could shed light into future research, technology, and pharmacologic interventions to adequately manage patients with these conditions.

The value of synchro-cystourethrometry for evaluating the relationship between urethral instability and overactive bladder.

To investigate the correlation between urethral instability (URI) and overactive bladder (OAB) in children. We retrospectively investigated 126 children with OAB and 36 children without OAB using synchro-cystourethrometry. The prevalence of detrusor overactivity (DO) and URI, and the diagnostic sensitivity of DO alone and DO combined with URI, was compared. The OAB children with URI voluntarily received transcutaneous electrical pudendal nerve stimulation with anisodamine (stimulation group, SG) or anisodamine alone (non-stimulation group, NSG). The effectiveness of treatment was evaluated. Average voided volume (AVV), maximum voided volume (MVV), and number of voids per day (NV) were collected and analyzed. In OAB children, the prevalence of DO and URI was 51.6 and 32.5%, respectively. The prevalence of URI was 5.6% in controls. The prevalence of URI was significantly higher in OAB children. The diagnostic sensitivity and Youden index of DO combined with URI were higher than DO alone. In SG, 45.7% of children were cured, with a ≥50% improvement rate of 82.9%, while no child was cured, with a ≥50% improvement rate of 36.8% in NSG. A significant increase in AVV and MVV together, with a decrease in NV, was seen in SG. There was a significant difference in visual analogue scale values between SG and NSG (P<0.01). Urethral instability plays an essential role in the pathogenesis and progression of OAB in children. Synchro-cystourethrometry is a useful urodynamic technology to precisely diagnose OAB, and transcutaneous electrical pudendal nerve stimulation may be an effective treatment for OAB children induced by URI.

Progressive changes in detrusor function and micturition patterns with chroinc bladder ischemia

PurposeLower urinary tract symptoms (LUTS) are bothersome constellation of voiding symptoms in men and women as they age. Multiple factors and comorbidities are attributed to this problem but underlying mechanisms of nonobstructive nonneurogenic detrusor overactivity, detrusor underactivity and LUTS remain largely unknown. Our goal was to characterize detrusor function and voiding patterns in relation to muscarinic receptors expression, nerve fiber density, and neural ultrastructure in chronic bladder ischemia.Materials and MethodsIliac artery atherosclerosis and bladder ischemia were produced in male Sprague-Dawley rats. At 8 and 16 weeks after ischemia, micturition patterns and cystometrograms were recorded in conscious rats then bladder blood flow and nonvoiding spontaneous contractions were measured under general anesthesia. Bladder tissues were processed for Western blotting, immunostaining, and transmission electron microscopy.ResultsBladder responses to ischemic insult depended on the duration of ischemia. Micturition patterns and cystometric changes at 8-week ischemia suggested detrusor overactivity, while voiding behavior and cystometrograms at 16-week ischemia implied abnormal detrusor function resembling underactivity. Upregulation of muscarinic M2 receptor was found after 8- and 16 weeks of ischemia. Downregulation of M3 and upregulation of M1 were detected at 16-week ischemia. Neural structural damage and marked neurodegeneration were found after 8 and 16 weeks of ischemia, respectively.ConclusionsProlonged ischemia may be a mediating variable in progression of overactive bladder to dysfunctional patterns similar to detrusor underactivity. The mechanism appears to involve differential expression of M1, M2, and M3 receptors, neural structural injury, and progressive loss of nerve fibers.

The overactive bladder progression to underactive bladder hypothesis.

The overactive bladder (OAB) is a well-known and common urologic condition. However, the apparent opposite syndrome to the OAB, the underactive bladder (UAB), remains an enigma. Underactive bladder syndrome is complex condition that shares symptoms with other prevalent urologic diagnoses. UAB is not a pure condition-it is not the result of any single factor, but rather, it is multifactorial. As a result, UAB may overlap with OAB, bladder outlet obstruction, or even occur with no symptoms or associated diseases. To make it yet more challenging, in the elderly, detrusor hyperreflexia/impaired contractility (DHIC) is a condition that has the pathological elements of both OAB and UAB and is also common. I hypothesize that UAB and OAB may not be an entirely separate disease entity. Instead, chronic untreated or treatment refractory OAB--due to neurological diseases such as diabetes, bladder outlet obstruction or aging sarcopenia and frailty--may progress to DHIC and, finally, UAB. The progression of OAB to UAB hypothesis suggests that early education, behavioral modification and medical treatment may alter and/or prevent progression to UAB.

Evaluation of Factors Influencing the Natural History of Nocturia in Elderly Subjects: Results of the Fujiwara-kyo Study

We evaluated the natural history of nocturia and determined factors influencing the incidence or remission of nocturia. Study subjects were 4,427 volunteers 65 years old or older who participated in the Fujiwara-kyo Study. The nocturia prevalence was assessed at baseline and 1 year later. Nocturia incidence and remission rates were calculated and factors influencing these results were evaluated based on characteristics, including gender, age, body mass index, HbA1c, creatinine clearance, life style, comorbidities, depressive status, metabolic syndrome and voiding symptoms. Independent factors were determined by multivariate analysis. Of the 4,427 subjects 3,685 provided complete replies to self-administered questionnaires at baseline and 1 year later. The prevalence of nocturia at baseline and 1 year later was 47.0% and 50.3%, and nocturia incidence and remission rates were 20.0% and 15.4%, respectively. Male gender, high body mass index, voiding symptom deterioration and new onset overactive bladder were independent factors associated with the nocturia incidence. Male gender, sum of the voiding symptoms, age and new onset overactive bladder were independent negative factors associated with nocturia remission. The prevalence of nocturia worsened with time, although nocturia in older subjects progressed dynamically. Male gender, age, body mass index, sum of voiding symptoms, voiding symptom deterioration and new onset overactive bladder influence the natural history of nocturia.