ABSTRACT
RESUMO A incontinência urinária (IU) está associada à ocorrência de quedas em idosos e pode ter relação com déficits no controle postural. O objetivo deste trabalho é comparar o controle postural estático, na condição de olhos abertos e fechados, e o risco de quedas entre idosas com IU e idosas sem IU. A amostra foi dividida em dois grupos: idosas com IU (n=21, idade=65,33±4,57 anos) e idosas sem IU (n=19, idade=66,37±5,26 anos). As características da perda urinária do grupo com IU foram avaliadas por meio do International Consultation on Incontinence Questionnaire: Short Form (ICIQ-SF). O controle postural estático dos grupos foi mensurado pelo deslocamento do centro de pressão (COP) por meio de uma plataforma de força; e o risco de quedas foi avaliado pelo teste timed up and go. Para a análise estatística, foi utilizado o teste U de Mann-Whitney e o teste qui-quadrado. A maioria das participantes com IU perdiam urina em pequena quantidade e todas perdiam em baixa frequência. Não foi observada diferença entre os grupos em relação às variáveis do COP (p>0,05) e o risco de quedas (p=0,082). Entretanto, na análise intragrupos, houve diferença na velocidade do COP de ambos os grupos na comparação olhos abertos versus olhos fechados (p<0,05). Não houve diferença no controle postural estático e no risco de quedas entre idosas com e sem IU.
RESUMEN La incontinencia urinaria (IU) está asociada con la presencia de caídas en los ancianos y puede estar relacionada con déficits en el control postural de ellos. El presente estudio tuvo como objetivo comparar el control postural estático con los ojos abiertos y con los ojos cerrados y el riesgo de caídas entre mujeres ancianas con IU y mujeres ancianas sin IU. La muestra se dividió en dos grupos: ancianas con IU (n=21, edad=65,33±4,57 años) y ancianas sin IU (n=19, edad=66,37±5,26 años). Las características de pérdida urinaria en el grupo con IU se evaluaron utilizando el International Consultation on Incontinence Questionnaire: Short Forma (ICIQ-SF). El control postural estático de los grupos se midió por el desplazamiento del centro de presión (COP) por medio de una plataforma de fuerza; y el riesgo de caídas fue evaluado por el test del timed up and go. En el análisis estadístico, se utilizaron la prueba U de Mann-Whitney y la prueba de Chi-cuadrado. La mayoría de las participantes con IU perdieron una pequeña cantidad de orina y todas la perdieron a baja frecuencia. No se observó diferencia entre los grupos en relación con las variables COP (p>0,05) y el riesgo de caídas (p=0,082). Sin embargo, en el análisis intragrupo hubo una diferencia en la velocidad de COP de ambos grupos en la comparación ojos abiertos versus ojos cerrados (p<0,05). No hubo diferencias en el control postural estático y en el riesgo de caídas entre las ancianas con y sin IU.
ABSTRACT Urinary incontinence (UI) is associated with the occurrence of falls in older people and may be related to failure in the postural control of older people. This study aims to compare static postural control under eyes-closed and eyes-open conditions as well as the risk of falls in older women with UI and without UI. The sample was divided in two groups: a group of older women with UI (n=21, age=65.33±4.57 years) and a group of older women without UI (n=19, age=66.37±5.26 years). The urinary loss characteristics of the UI group were evaluated with use of the International Consultation on Incontinence Questionnaire - Short Form (ICIQ-SF). The static postural control of the groups was measured using displacement of center of pressure (COP) through a force platform and the risk of falls was evaluated with the Timed Up and Go test (TUG). Statistical analysis was performed using Mann Whitney's U-Testand the chi-square test. Most participants with UI lost urine in small amounts and at low frequency. No difference was observed between the groups with respect to COP variables (p>0.05) and risk of falls (p=0.082). However, in the intragroup analysis, a difference was observed in the COP velocity of both groups comparing open and closed eyes (p<0.05). No difference was observed in the static postural control and risk of falls in older women with and without UI.
Subject(s)
Humans , Female , Aged , Urinary Incontinence/physiopathology , Accidental Falls , Postural Balance/physiology , Urinary Bladder/physiology , Urinary Bladder/physiopathology , Case-Control Studies , Cross-Sectional StudiesABSTRACT
ABSTRACT Objectives To determine the differences between voiding symptoms obtained by open anamnesis (VS-Open) versus voiding symptoms obtained by directed anamnesis (VS-Directed) to predict voiding dysfunction in women. Materials and Methods Retrospective study of women with prior anti-incontinence surgery evaluated during 5 years. In a standardized clinical history taking, each patient was asked to answer question number five of the UDI-6 questionnaire ("Do you experience any difficulty emptying your bladder?"). If the answer was positive, the following voiding symptoms spontaneously described by the patient were documented: slow urine stream, straining to void, intermittent stream and feeling of incomplete bladder emptying, which were considered VS-Open. If the answer to this question was negative or if the patient had not reported the four voiding symptoms, she was asked in a directed manner about the presence of each o Ninety-one women are analyzed. Eighteen patients presented voiding dysfunction (19.8%), There was a statistical association between voiding dysfunction and the presence of any VS-Open (p = 0.037) and straining to void obtained by open anamnesis (p = 0.013). Sensitivity, specificity, PPV, NPV, positive likelihood ratio and negative likelihood ratio, respectively, were 44.4% and 27.8%, 80.8% and 94.5%, 36.3% and 55.6%, 85.5% and 84.1%, 2.324 and 5.129, and 0.686 and 0.764. There was no statistical association between voiding dysfunction and VS-Directed. Conclusions VS-Open may predict better voiding dysfunction than VS-Directed in women.
Subject(s)
Humans , Female , Adult , Aged , Aged, 80 and over , Urination Disorders/diagnosis , Urination Disorders/physiopathology , Medical History Taking/methods , Reference Values , Urinary Incontinence/surgery , Urodynamics , Urinary Bladder/physiopathology , Predictive Value of Tests , Surveys and Questionnaires , Reproducibility of Results , Retrospective Studies , Middle AgedABSTRACT
ABSTRACT Objective The objective of bladder augmentation (BA) is to create a low-pressure reservoir with adequate capacity. Despite its benefits, the use of intestinal patches in bladder enlargement provides a high risk of developing complications and BA with demucosalised bowel represents a potential alternative. Therefore, this study evaluated urological parameters and long-term clinical follow-up of patients submitted to non-secretory BA in a single center with 25 years of experience. Materials and Methods Patients treated with BA underwent urological evaluation, which included history, physical examination and urodynamic study. The main urodynamic parameters (bladder capacity and bladder compliance) were assessed in the pre and postoperative moments, and compared by the Wilcoxon Signed Rank test. The main long-term complications were described. Results 269 patients (mean age 14±13 years, 47% male) underwent BA with the use of demucolised intestinal segments. Among the patients in the sample, 187 (69.52%) had neurogenic bladder, 68 (25.28%) had bladder exstrophy, nine had tuberculosis (3.34%), four had a posterior urethral valve (1.49%) and one with hypospadia (0.37%). After the surgical procedure, a significant increment in both urodynamic parameters was found, with a 222% increase in bladder capacity and 604% in bladder compliance (p <0.001 in both analyzes). Mean follow-up time ranged from 2 to 358 months, with a median of 72 months (IQR 74-247). Among all patients, 5 presented spontaneous perforation. Conclusion The study showed statistically significant increase in both compliance and bladder capacity after non-secretory BA, with a low rate of severe complications.
Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Adult , Young Adult , Urologic Surgical Procedures/methods , Urinary Bladder/surgery , Urinary Bladder Diseases/surgery , Postoperative Period , Urodynamics , Urinary Bladder/physiopathology , Urinary Bladder Diseases/physiopathology , Urinary Bladder Diseases/rehabilitation , Prospective Studies , Reproducibility of Results , Follow-Up Studies , Treatment Outcome , Statistics, Nonparametric , Middle AgedABSTRACT
ABSTRACT Objectives: To examine the benefits of repetitive uroflowmetry and post void residual urine (PVR) tests in children with primary nocturnal enuresis (PNE). Material and methods: Children aged ≥6 years with PNE who visited our clinics for management of enuresis were included for study. Patients were requested to complete a questionnaire including baseline characteristics and Dysfunctional Voiding Symptom Score (DVSS), 2-day bladder diary, and Rome III criteria for constipation. Two uroflowmetry and PVR tests were requested. Children with congenital or neurogenic genitourinary tract disorders were excluded. All children underwent urotherapy and desmopressin combined with anticholinergics or laxatives if indicated. The definition of abnormal flow patterns (≥1 abnormal), elevated PVR (≥1 abnormal), small maximal voided volume (MVV), nocturnal polyuria (NP) and response to treatment complied with the ICCS standardization document. Kaplan-Meier survival analysis and Cox proportional-hazards regression tests were used to evaluate the predictors of response. Results: In total, 100 children aged 8.5±2.3 years were enrolled for study (M: F=66:34) with 7.3±7.4 months of follow-up. Poor correlation was observed between DVSS/small MVV and PVR (p>0.05). Univariate analysis revealed that elevated PVR is associated with significantly less hazard of complete response to medical treatment (HR: 0.52, p=0.03), while not significantly associated with abnormal flow patterns, NP, constipation or small MVV. Multivariate analysis revealed that only elevated PVR (HR 0.30, 95% CI 0.12-0.80) and NP (HR 2.8, 95% CI 1.10-7.28) were significant predictors for complete response. Conclusions: In managing pediatric enuresis, elevated PVR is a significant predictor for lower chance of complete response to treatment whether they had high DVSS or not.
Subject(s)
Humans , Male , Female , Child , Urination/physiology , Urinary Retention/diagnosis , Urinary Retention/physiopathology , Nocturnal Enuresis/diagnosis , Nocturnal Enuresis/physiopathology , Prognosis , Time Factors , Urodynamics/physiology , Urinary Bladder/physiopathology , Predictive Value of Tests , Retrospective Studies , Risk Factors , Urinary Retention/complications , Treatment Outcome , Statistics, Nonparametric , Nocturnal Enuresis/etiology , Nocturnal Enuresis/therapyABSTRACT
ABSTRACT Objective: To evaluate urodynamic alterations after sub-urethral sling surgery (SSU) in patients with post-prostatectomy urinary incontinence (PPUI). Materials and Methods: We evaluated data of 22 patients submitted to radical prosta- tectomy (RP) or transurethral resection of prostate (TURP) that presented post-surgical urinary incontinence and were treated with SSU implant in a pilot study previously performed in our institution. Methods: Those patients with PPUI were evaluated by urodynamic exam (UD) before and after surgery, and the parameters were compared, including uroflow, cystometry and micturition study. Exclusion criteria included patients without pre-operatory urodynamic study, those with urethral stenosis, those not healed of prostate cancer, pa- tients without clinical conditions to be submitted to urodynamic study and those with severe neurological diseases or that refused to sign the consent form. Results were analyzed statistically by Fisher, Wilcoxon or Mann-Whitney tests. Results: During free uroflow, none parameters showed any statistical significant differ- ences. During cystometry, there were also no statistical differences and the same was observed at pressure versus flow study; the exception was at maximal flow detrusor pressure (PdetQmax), that was lower at post-operatory (p=0.028). In relation to the presence of urinary dysfunctions associated to PPUI, we observed a significant reduc- tion of detrusor overactivity (p=0.035) in relation to pre-operatory period. Conclusion: SSU surgery significantly reduced detrusor overactivity and PdetQMax; however, there were no alterations of other evaluated urodynamic parameters.
Subject(s)
Humans , Male , Prostatectomy/adverse effects , Urinary Incontinence/surgery , Urinary Incontinence/etiology , Urodynamics/physiology , Suburethral Slings , Postoperative Period , Reference Values , Urinary Incontinence/physiopathology , Urination/physiology , Urinary Bladder/physiopathology , Retrospective Studies , Treatment Outcome , Statistics, Nonparametric , Prosthesis Implantation/methods , Preoperative Period , Middle AgedABSTRACT
ABSTRACT Purpose To investigate the lower urinary tract changes in mice treated with L-NAME, a non-selective competitive inhibitor of nitric oxide synthase (NOS), or aminoguanidine, a competitive inhibitor of inducible nitric oxide synthase (iNOS), after 5 weeks of partial bladder outlet obstruction (BOO), in order to evaluate the role of constitutive and non-constitutive NOS in the pathogenesis of this experimental condition. Materials and Methods C57BL6 male mice were partially obstructed and randomly allocated into 6 groups: Sham, Sham + L-NAME, Sham + aminoguanidine, BOO, BOO + L-NAME and BOO + aminoguanidine. After 5 weeks, bladder weight was obtained and cystometry and tissue bath contractile studies were performed. Results BOO animals showed increase of non-voiding contractions (NVC) and bladder capacity, and also less contractile response to Carbachol and Electric Field Stimulation. Inhibition of NOS isoforms improved bladder capacity and compliance in BOO animals. L-NAME caused more NVC, prevented bladder weight gain and leaded to augmented contractile responses at muscarinic and electric stimulation. Aminoguanidine diminished NVC, but did not avoid bladder weight gain in BOO animals and did not improve contractile responses. Conclusion It can be hypothesized that chronic inhibition of three NOS isoforms in BOO animals leaded to worsening of bladder function, while selective inhibition of iNOS did not improve responses, what suggests that, in BOO animals, alterations are related to constitutive NOS.
Subject(s)
Animals , Male , Urinary Bladder Neck Obstruction/drug therapy , Nitric Oxide Synthase/antagonists & inhibitors , NG-Nitroarginine Methyl Ester/pharmacology , Enzyme Inhibitors/pharmacology , Lower Urinary Tract Symptoms/drug therapy , Guanidines/pharmacology , Nitric Oxide/antagonists & inhibitors , Pressure , Time Factors , Urination/drug effects , Urination/physiology , Urinary Bladder/drug effects , Urinary Bladder/physiopathology , Urinary Bladder Neck Obstruction/physiopathology , Random Allocation , Reproducibility of Results , Treatment Outcome , NG-Nitroarginine Methyl Ester/therapeutic use , Enzyme Inhibitors/therapeutic use , Guanidines/therapeutic use , Mice, Inbred C57BL , Muscle Contraction/drug effectsABSTRACT
ABSTRACT Objective To study urethral pressure variations during the whole filling phase among different groups of patients. Material and Methods We investigated 79 consecutive patients from January 2011 to June 2012. All patients were recruited within our routine practice in our continence clinic and were evaluated with urodynamic exam according to the standards of the International Continence Society (ICS) with an additional continuous measurement of the urethral pressure profile (cUPP) that was done in a supine position. Patients with genital prolapse >grade I, as well as patients with impaired cognitive function or neurogenic disorders were excluded. Bacteriuria at the time of investigation was excluded by urine analysis. Urethral pressure changes higher than 15cmH2O were considered as ‘urethral instability’. Results From 79 investigated patients, 29 were clinically diagnosed with OAB syndrome, 19 with stress urinary incontinence (SUI) and 31 with mixed (OAB and SUI) incontinence. The prevalence of ‘urethral instability’ as defined in this study was 54.4% (43/79). The mean Δp in patients with OAB (36.5cmH2O) was significantly higher (p<0.05) than in groups with pure stress (14.9cmH2O) and mixed urinary incontinence (19.3cmH2O). Conclusions Etiology of ‘urethral instability’ is unknown, but high prevalence among patients with overactive bladder syndrome, especially concomitant with detrusor activity can raise a fair question and direct further diagnostic as well as treatment efforts.
Subject(s)
Humans , Female , Adult , Pressure , Urethra/physiopathology , Urinary Bladder, Overactive/etiology , Urinary Bladder, Overactive/physiopathology , Reference Values , Urinary Incontinence/physiopathology , Urodynamics , Urinary Bladder/physiopathology , Risk Factors , Statistics, Nonparametric , Area Under Curve , Electromyography , Fourier Analysis , Middle AgedABSTRACT
ABSTRACT Objective Cystometric evaluation of the bladder after autotransplant and isogeneic transplant in female rats. Material and Methods Two groups were constituted: (A) bladder autotransplant with two subgroups: R1 – (control) and R2 – (bladder transplant); (B) isogeneic bladder transplant with three subgroups; T1 – (control); T2–T3, two subgroups observed for 30 and 60 days after transplant, respectively. All animals underwent cystometric evaluation. Afterwards, the bladders were removed for histological study. Results The transplanted bladders did not show significant changes in filling/storage and emptying/micturition functions after 30 and 60 days of evolution. Upon macroscopical evaluation, there was good revascularization and the tissue was well preserved. Cystometry results: Did not show significant differences in the micturition pressure in subgroups T2-T3, but did between subgroups R1−R2, T1−T2, and T1−T3. Significant differences were verified in the micturition interval between T1−T3, T2−T3, but not between R1−R2, T1−T2. There was significant difference in the micturition duration between T1−T3 but not between R1−R2, T1−T2 and T2−T3. No fistula was noted on the suture site nor leakage of urine in the abdominal cavity or signs of necrosis or retraction were observed. Conclusions Transplant of the bladder was shown to be a viable procedure. The results indicate that there was structural and functional regeneration of transplanted bladders, and these results indicate that it is possible that vascular endothelium growth and neurogenesis factors are involved and activated in the process of the preservation or survival of the transplanted organ.
Subject(s)
Animals , Female , Urinary Bladder/physiopathology , Urinary Bladder/transplantation , Pressure , Reference Values , Time Factors , Transplantation, Autologous , Urination/physiology , Urinary Bladder/pathology , Reproducibility of Results , Treatment Outcome , Rats, Wistar , Models, AnimalABSTRACT
La enuresis primaria monosintomática es un problema clínico común que afecta del 5 al 10% de los niños en edad escolar. La etiología exacta no se conoce, pero se ha propuesto una capacidad vesical funcional disminuida como factor predisponente. Existen pocos reportes en la literatura del uso de ultrasonido para su evaluación. Objetivo: Determinar si la capacidad vesical funcional medida por ultrasonido está disminuida en enuresis primaria monosintomática comparada con población sana. Pacientes y Método: Estudio trasversal analítico de febrero de 2014 a mayo de 2015 incluyendo 40 pacientes con enuresis y 40 sin enuresis, 5 a 15 años de edad, midiendo la capacidad vesical funcional mediante ecógrafo Siemens Acuson S2000TM con transductor 3,5 y 5 MHz por un solo operador cegado. Se realizó estadística descriptiva y analítica mediante el programa IBM SPSS 20 TM. Resultados: Los pacientes con enuresis presentaron menor capacidad vesical funcional 171,7 ml vs controles 225,5 ml (p = 0,025). Resultó factor de riesgo OR = 2,81 (IC 95%: 1,06-7,42) tener un familiar de primera línea con antecedente de enuresis y OR = 4,0 (IC 95%: 1,48-10,78) para segunda línea. La capacidad vesical funcional presentó correlación débil con la capacidad vesical normal estimada mediante la fórmula de Kaefer. Conclusión: La capacidad vesical funcional es menor en quien padece enuresis que en los que no la padecen y existe poca correlación con las fórmulas que determinan la capacidad vesical normal esperada como la de Kaefer. Se reafirmó que el antecedente hereditario de enuresis juega un papel importante como factor de riesgo.
Nocturnal enuresis is a common clinical problem affecting 5% to 10% of school-age children. Etiology is not known but a diminished functional bladder capacity it has been proposed as a predisposing factor. There exist only a few studies evaluating it by ultrasound. Objective: To identify if there is a difference of the functional bladder capacity measured by ultrasound between nocturnal enuresis group and healthy children. Patients and Method: A cross-sectional study from February 2014 to May 2015 including two groups, nocturnal enuresis and a control group of 40 patients each, 5 to 15 years old. A single blinded operator measured the functional bladder capacity by ultrasound with an Acuson S2000 SiemensTM 3.5 and 5 MHz transducer. Analytics and descriptive statistics were performed using IBM SPSS 20TM software. Results: Patients with enuresis showed a decreased functional bladder capacity vs. controls (171.7 ml vs 225.5 ml; p = 0.025). A history of first-degree relative with enuresis increased the risk of having enuresis OR = 2.81 (95% CI: 1.06-7.42), a second-degree relative presented OR = 4.0 (95% CI: 1.48-10.78). Functional bladder capacity presented a weak correlation with the bladder capacity estimated by Kaefers formula. Conclusion: The functional bladder capacity is lower in the patients with nocturnal enuresis when compared to control group. There is little correlation between functional bladder capacity and Kaefers formula to determine the normal bladder capacity. We reaffirmed that the family history with enuresis strongly increases the risk of developing nocturnal enuresis.
Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adolescent , Urinary Bladder/physiopathology , Urinary Bladder Diseases/diagnostic imaging , Nocturnal Enuresis/etiology , Urinary Bladder/diagnostic imaging , Urinary Bladder Diseases/complications , Urinary Bladder Diseases/physiopathology , Case-Control Studies , Single-Blind Method , Cross-Sectional Studies , Ultrasonography , Nocturnal Enuresis/physiopathology , Nocturnal Enuresis/diagnostic imagingABSTRACT
ABSTRACT Purpose: To identify the minimum bladder diary's length required to furnish reliable documentation of LUTS in a specific cohort of patients suffering from neurogenic urinary dysfunction secondary to suprapontine pathology. Materials and Methods: From January 2008 to January 2014, patients suffering from suprapontine pathology and LUTS were requested to prospectively complete a bladder diary form for 7 consecutive days. Micturitions per day, excreta per micturition, urgency and incontinence episodes and voided volume per day were evaluated from the completed diaries. We compared the averaged records of consecutive days (2-6 days) to the total 7 days records for each patient's diary, seeking the minimum diary's length that could provide records comparable to the 7 days average, the reference point in terms of reliability. Results: From 285 subjects, 94 male and 69 female patients enrolled in the study. The records of day 1 were significantly different from the average of the 7 days records in every parameter, showing relatively small correlation and providing insufficient documentation. Correlations gradually increased along the increase in diary's duration. According to our results a 3-day duration bladder diary is efficient and can provide results comparable to a 7 day length for four of our evaluated parameters. Regarding incontinence episodes, 3 days seems inadequate to furnish comparable results, showing a borderline difference. Conclusions: A 3-day diary can be used, as its reliability is efficient regarding number of micturition per day, excreta per micturition, episodes of urgency and voided volume per day.
Subject(s)
Humans , Male , Female , Adult , Aged , Young Adult , Urinary Bladder/physiopathology , Urinary Bladder, Neurogenic/physiopathology , Medical Records , Lower Urinary Tract Symptoms/physiopathology , Time Factors , Urination , Prospective Studies , Urinary Bladder, Overactive/urine , Middle AgedABSTRACT
ABSTRACT The co-occurrence of multiple pathologies in the pelvic viscera in the same patient, such as, irritable bowel syndrome and interstitial cystitis, indicates the complexity of viscero-visceral interactions and the necessity to study these interactions under multiple pathological conditions. In the present study, the effect of distal colon irritation (DCI) on the urinary bladder interaction with distal esophagus distention (DED), distal colon distention (DCD), and electrical stimulation of the abdominal branches of vagus nerve (abd-vagus) were investigated using cystometry parameters. The DCI significantly decreased the intercontraction time (ICT) by decreasing the storage time (ST); nonetheless, DED and Abd-vagus were still able to significantly decrease the ICT and ST following DCI. However, DCD had no effect on ICT following the DCI. The DCI, also, significantly decreased the Intravesical pressure amplitude (P-amplitude) by increasing the resting pressure (RP). Although DED has no effect on the P-amplitude, both in the intact and the irritated animals, the abd-vagus significantly increased the P-amplitude following DCI by increasing the maximum pressure (MP). In the contrary, 3mL DCD significantly increased the P-amplitude by increasing the MP and lost that effect following the DCI. Concerning the pressure threshold (PT), none of the stimuli had any significant changes in the intact animals. However, DCI significantly decreased the PT, also, the abd-vagus and 3mL DCD significantly decreased the PT. The results of this study indicate that chemical irritation of colon complicates the effects of mechanical irritation of esophagus and colon on urinary bladder function.
Subject(s)
Animals , Male , Female , Urinary Bladder/physiopathology , Colonic Diseases/physiopathology , Irritable Bowel Syndrome/physiopathology , Esophageal Diseases/physiopathology , Pressure , Reference Values , Time Factors , Vagus Nerve/physiopathology , Urinary Bladder Diseases/etiology , Urinary Bladder Diseases/physiopathology , Viscera/physiopathology , Viscera/innervation , Rats, Wistar , Colon/physiopathology , Colon/innervation , Colonic Diseases/etiology , Irritable Bowel Syndrome/complications , Electric Stimulation , Esophageal Diseases/etiology , Esophagus/physiopathology , Esophagus/innervationABSTRACT
Os autores relatam o caso de uma paciente de 46 anos de idade, que, após ter sido submetida a tratamento radioterápico por neoplasia de colo uterino, desenvolveu cistite actínica com episódios frequentes de hematúria franca. A paciente necessitou ser submetida a repetidos cateterismos vesicais por retenção urinária, hemotransfusões e internacões hospitalares. As medidas conservadoras e as tentativas de hemostasia por cistoscopia não foram bem-sucedidas no controle do sangramento. A paciente foi então submetida a tratamento endovascular com embolização superseletiva das artérias vesicais e outros pedículos vasculares, que se demonstraram associados ao sangramento. O procedimento foi bem-sucedido e a paciente vem sendo acompanhada há nove meses sem a necessidade de novas hemotransfusões nem de novas internações hospitalares. De acordo com a revisão da literatura, o uso dessa técnica ainda não havia sido descrito em trabalhos brasileiros.
This article describes the case of a 46-year-old female patient who had been treated with radiotherapy for cervical cancer. She developed actinic cystitis with frequent episodes of severe hematuria. She required repeated catheterization to manage urinary retention, blood transfusions and hospital admissions. Conservative measures and attempts to achieve hemostasis by cystoscopy were unsuccessful at controlling bleeding. The patient therefore underwent endovascular treatment with superselective embolization of the vesical arteries and other vascular pedicles found to be linked with the bleeding. The procedure was successful and the patient has been in follow-up for 9 months with no need for further blood transfusions or admission to hospital. According to a review of the literature, use of this technique has not previously been described in Brazil.
Subject(s)
Humans , Middle Aged , Cystitis/complications , Cystitis/pathology , Cystitis/therapy , Uterine Cervical Neoplasms/radiotherapy , Urinary Bladder/physiopathology , Endovascular Procedures , Embolization, Therapeutic/methods , Hematuria/urine , Time FactorsABSTRACT
Background: Compared to conventional therapies, sacral neuromodulation (SNM) may offer an alternative, non-destructive treatment for SCI patients with bladder dysfunction. Understanding bladder response to SNM treatment for SCI in different phases may yield new insights for innovative use of this promising technique. Materials and Methods: Female Sprague-Dawley rats were used in this study to examine the effects of acute SNM on bladder reflex in complete SCI rats. All rats were anesthetized and set up for continuous saline infusion. Acute SNM treatment was implemented for about 6 hours for each rat. Cystometric parameters, including time between contractions, contraction duration, bladder peak pressure, and number of uninhibited contractions, were analyzed and compared within rats before and after SNM treatment. Results: For the spinally transected rats during early phase (less than two weeks post spinalization), the time between contractions and contraction duration both increased after SNM treatments, yet the increased amplitude was about or less than 20%. For the spinally transected rats with a longer days survival (about two to four weeks post spinalization), the time between contractions and contraction duration substantially increased after SNM treatment and the changes for their average values were more than 90%. For the spinally transected rats with a much longer days survival (more than five weeks post spinalization), the time between contractions and contraction duration increased after SNM treatments, yet the magnitude of changes were less than 30%. Conclusion: The present study suggested that the significant effectiveness of SNM for complete SCI played its role after the spinal shock phase and prior to the development of detrusor overactivity. It indicated that the time point of SNM treatment is necessary to be paid attention.
Subject(s)
Animals , Female , Sacrum/physiopathology , Spinal Cord Injuries/physiopathology , Spinal Cord Injuries/therapy , Spinal Cord Stimulation/methods , Urinary Bladder/physiopathology , Disease Models, Animal , Lower Urinary Tract Symptoms/etiology , Lower Urinary Tract Symptoms/prevention & control , Muscle Contraction/physiology , Rats, Sprague-Dawley , Reproducibility of Results , Spinal Cord Injuries/complications , Time Factors , Treatment OutcomeABSTRACT
Objective To re-examine the function of the urinary bladder in vivoas well as to determine the functional and biochemical characteristics of bladder muscarinic receptors in long-term alloxan-induced diabetes rats.Methods Two-month-old male Wistar rats were injected with alloxan and the animals showing blood glucose levels >300mg/dL together with age-paired untreated animals were kept for 11 months. Body weight, bladder weight, blood glucose, and urinary volume over a period of 24 hours were determined in both groups of animals. A voiding cystometry in conscious control and diabetic rats was performed to determine maximal micturition pressure, micturition contraction interval and duration as well as voided and post-voiding residual volume. In addition, concentration-response curves for bethanechol in isolated bladder strips, as well as [3H]-N methyl-scopolamine binding site characteristics in bladder homogenates were determined.Results Mean bladder weight was 162.5±21.2mg versus 290±37.9mg in control and treated animals, respectively (p<0.05). Micturition contraction amplitude (34.6±4.7mmHg versus 49.6±2.5mmHg), duration (14.5±1.7 seconds versus 23.33±4.6 seconds) and interval (87.5±17.02 seconds versus 281.11±20.24 seconds) were significantly greater in alloxan diabetic rats. Voided urine volume per micturition contraction was also significantly higher in diabetic animals. However the post-voiding residual volume was not statistically different. Bethanechol potency (EC50 3µM versus 5µM) and maximal effect (31.2±5.9g/g versus 36.1±6.8g/g) in isolated bladder strips as well as number (169±4fmol/mg versus 176±3fmol/mg protein) and affinity (0.69±0.1nM versus 0.57±0.1nM) of bladder muscarinic receptors were also not statistically different.Conclusion Bladder function in vivo is altered in chronic alloxan-induced diabetes rats without changes in functional and biochemical characteristics of bladder muscarinic receptors.
Objetivo Reestudar o funcionamento da bexiga in vivo e determinar as características funcionais e bioquímicas dos receptores muscarínicos vesicais de ratos com diabetes crônico induzido por aloxana.Métodos Ratos Wistar de dois meses de idade receberam injeção de aloxana, e os animais que apresentaram glicemia >300mg/dL foram mantidos por 11 meses junto de outros não tratados e pareados por idade. Nos dois grupos de animais, peso corpóreo, peso da bexiga, glicemia e volume urinário de 24 horas foram medidos. Em ambos os grupos, realizou-se a cistometria miccional em animais não anestesiados. Foram determinados os seguintes parâmetros: pressão máxima de micção, intervalo e contração de micção, bem como o volume de esvaziamento e o volume residual pós-miccional. Além disso, foram determinadas as curvas de concentração-resposta a betanecol em preparações isoladas de bexiga e também as características dos sítios de ligação da [3H]-N-metil-escopolamina em homogenatos de bexiga.Resultados O peso médio da bexiga foi de 162,5±21,2mg versus290±37,9mg nos animais controles e tratados, respectivamente (p<0,05). A amplitude de contração (34,6±4,7mmHg versus 49,6±2,5mmHg), a duração (14,5±1,7 segundos versus 23,33±4,6 segundos) e o intervalo (87,5±17,02 segundos versus 281,11±20,24 segundos) de micção foram significantemente maiores nos ratos tratados com aloxana. O volume de urina eliminada durante a contração miccional também foi maior nos animais diabéticos. Contudo, o volume residual pós-miccional não foi estatisticamente diferente. Não foram observadas diferenças na resposta ao betanecol (EC50 3µM versus 5µM) e no seu efeito máximo (31,2±5,9g/g versus 36,1±6,8g/g) em preparações isoladas de bexiga, bem como no número total (169±43fmol/mgversus 176±3fmol/mg) e na afinidade (0,69±0,1nMversus 0,57±0,1nM) dos receptores muscarínicos da bexiga.Conclusão O funcionamento da bexiga in vivo está alterado no diabetes crônico induzido por aloxana, porém sem alterações funcionais e bioquímicas nos receptores muscarínicos da bexiga.
Subject(s)
Animals , Male , Diabetes Mellitus, Experimental/metabolism , Receptors, Muscarinic/metabolism , Urinary Bladder/metabolism , Alloxan/administration & dosage , Bethanechol/administration & dosage , Disease Models, Animal , Dose-Response Relationship, Drug , Diabetes Mellitus, Experimental/chemically induced , Muscle Contraction/drug effects , Muscle Contraction/physiology , N-Methylscopolamine/administration & dosage , Rats, Wistar , Receptors, Muscarinic/drug effects , Time Factors , Urinary Bladder/drug effects , Urinary Bladder/physiopathology , Urination/drug effects , Urination/physiologyABSTRACT
ABSTRACTObjective:To evaluate the urodynamic changes immediately after the first session (acute effect) and after the last session of parasacral TENS in children with idiopathic OAB.Materials and methods:We performed urodynamic evaluation immediately before and after the first session of parasacral TENS and immediately after the last session (7 weeks later). Only children with idiopathic isolated OAB were included. Patients with dysfunctional voiding were not included.Results:18 children (4 boys and 14 girls, mean age of 8.7) were included in the first analysis (urodynamic study before and immediately after the first session) and 12 agreed to undergo the third urodynamic study. Urodynamic before and immediately after the first session: There was no change in the urodynamic parameters, namely low MCC, low bladder compliance, presence of IDC, the average number of IDC, or in the maximum detrusor pressure after the first exam. Urodynamic after the last session: The bladder capacity improved in most patients with low capacity (58% vs. 8%). Detrusor overactivity was observed in 11 (92%) before treatment and 8 (76%) after. There was not a significant reduction in the average number of inhibited contractions after TENS (p=0.560) or in the detrusor pressure during the inhibited contraction (p=0.205).Conclusion:There was no change in the urodynamic parameters immediately after the first session of stimulation. After the last session, the only urodynamic finding that showed improvement was bladder capacity.
Subject(s)
Child , Female , Humans , Male , Lumbosacral Plexus , Transcutaneous Electric Nerve Stimulation , Urinary Bladder, Overactive/therapy , Urodynamics/physiology , Compliance/physiology , Muscle Contraction/physiology , Treatment Outcome , Urinary Bladder/physiopathologyABSTRACT
Detrusor after-contractions (DAC) are non-common in adults. Both definition (nothing in ICS reports) and significance (artefact, link with detrusor overactivity (DO) or bladder outlet obstruction (BOO)) remain discussed. Our purpose was to carry out an analysis of the urodynamic parameters during voidings with DAC and, using the VBN model, to simulate pathophysiological conditions able to explain both voiding phase and DAC.
From large urodynamic database of patients referred for evaluation of lower urinary tract dysfunction, DAC were observed in 60 patients (5.7%). Criteria for DAC were post-void residual <30mL and increase of detrusor pressure >10cmH2O. VBN model was used for analysis of both pressure and flow curves, and simulations of pathophysiological conditions.
Onset of DAC (ODAC) occurred when Q=7.3±5.7mL/s and bladder volume=17.9±15.4mL. Urgency-frequency syndrome and urodynamic diagnosis of DO were the more frequent scenarios associated with DAC. ODAC was associated to an inversion of the slope of detrusor pressure curve without any perturbation in flow curve. Among tested pathophysiological hypothesis (great, abnormal, detrusor force, sphincter contraction), none allowed restoring all recorded curves (flow rate, voiding pressure and DAC).
No urodynamic characteristic of the first part of voiding is an index of occurrence of DAC. ODAC is a significant phenomenon linked with the bladder collapse. DAC is not associated with BOO but more probably with DO and appears as the result of local conditions in an almost empty bladder (concentration of stresses around a transducer); thus DAC seems of weak clinical significance.
Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Young Adult , Muscle Contraction/physiology , Urinary Bladder, Overactive/physiopathology , Urinary Bladder/physiopathology , Urodynamics/physiology , Analysis of Variance , Artifacts , Pressure , Reference Values , Retrospective Studies , Rheology , Sex Factors , Urethra/physiopathology , Urination Disorders/physiopathologyABSTRACT
PURPOSE: Endoscopic treatment (ET) has become a widely accepted procedure for treating vesicoureteral reflux (VUR). However, patients followed up after ET over long periods have reported persistent or recurrent VUR. We evaluated the natural course of failed ET in patients who required further treatments to help physicians in making decisions on the treatment of VUR. MATERIALS AND METHODS: We retrospectively reviewed the medical records of patients who were diagnosed with VUR and underwent ET from January 2006 to December 2009. A total of 165 patients with 260 ureters underwent ET. We compared the parameters of the patients according to ET success or failure and evaluated the natural course of the patients after ET failure. RESULTS: Mean VUR grade and positive photon defect were higher in the failed ET group than in the successful ET group. Six months after the operation, persistent or recurrent VUR was observed in 76 ureters (29.2%), and by 16.3 months after the operation, VUR resolution was observed in 18 ureters (23.7%). Twenty-five ureters (32.9%) without complications were observed conservatively. Involuntary detrusor contraction was found in 1 of 9 (11.1%) among the secondary ET success group, whereas in the secondary ET failure group, 4 of 6 (66.7%) had accompanying involuntary detrusor contraction. CONCLUSIONS: Patients in whom ET fails can be observed for spontaneous resolution of VUR unless they have febrile urinary tract infection or decreased renal function. Urodynamic study may be helpful in deciding whether a secondary procedure after ET failure is necessary.
Subject(s)
Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Male , Cystoscopy , Muscle, Smooth/physiopathology , Retrospective Studies , Treatment Failure , Treatment Outcome , Urinary Bladder/physiopathology , Urodynamics , Vesico-Ureteral Reflux/therapyABSTRACT
PURPOSE: Stress urinary incontinence (SUI) is one of the most common lower urinary tract symptoms in women. We analyzed age-associated changes in urodynamic parameters in women with SUI. MATERIALS AND METHODS: We analyzed the urodynamic study (UDS) results of patients with urodynamically proven SUI between March 2008 and July 2014. In uroflowmetry, maximal flow rate (Qmax), time to Qmax, voided volume, and postvoid residual urine volume (PVR) and filling cystometry data including first, strong desire to void and Valsalva leak point pressure (VLPP) were measured. Also, Qmax and detrusor pressure at Qmax (Pdet@Qmax) of voiding cystometry data were analyzed. RESULTS: The subjects included 776 patients. Among the patients, 151 were withdrawn because of incomplete UDS data or because they met the exclusion criteria. A total of 625 patients enrolled in our study. The mean age of the population was 57.3 years. The mean Qmax, voided volume, voiding time, and PVR were 26.2 mL/s, 292.1 mL, 25.7 s, and 31.7 mL, respectively. Qmax (p=0.001) in uroflowmetry, PVR (p=0.042), first desire to void (p=0.042), Pdet@Qmax (p=0.016), and the bladder contractility index (p=0.046) were significantly different between the age groups. Qmax and Pdet@Qmax were decreased and PVR was increased significantly with age after 60 years. CONCLUSIONS: Older women with SUI also have worsened voiding function with age as the results of urodynamic parameters. Specifically, detrusor contractility decreased with age after 60 years.
Subject(s)
Aged , Female , Humans , Middle Aged , Aging , Urinary Bladder/physiopathology , Urinary Incontinence, Stress/physiopathology , UrodynamicsABSTRACT
PURPOSE: We compared bladder and urethral functions following radical prostatectomy (RP) between men with and without urinary incontinence (UI), using a large-scale database from SNU-experts-of-urodynamics-leading (SEOUL) Study Group. MATERIALS AND METHODS: Since July 2004, we have prospectively collected data on urodynamics from 303 patients with lower urinary tract symptoms (LUTS) following RP at three affiliated hospitals of SEOUL Study Group. After excluding 35 patients with neurogenic abnormality, pelvic irradiation after surgery, or a history of surgery on the lower urinary tract, 268 men were evaluated. We compared the urodynamic findings between men who had LUTS with UI (postprostatectomy incontinence [PPI] group) and those who had LUTS without UI (non-PPI group). RESULTS: The mean age at an urodynamic study was 68.2 years. Overall, a reduced bladder compliance (< or =20 mL/cmH2O) was shown in 27.2% of patients; and 31.3% patients had idiopathic detrusor overactivity. The patients in the PPI group were older (p=0.001) at an urodynamic study and had a lower maximum urethral closure pressure (MUCP) (p<0.001), as compared with those in the non-PPI group. Bladder capacity and detrusor pressure during voiding were also significantly lower in the PPI group. In the logistic regression, only MUCP and maximum cystometric capacity were identified as the related factor with the presence of PPI. CONCLUSIONS: In our study, significant number of patients with LUTS following RP showed a reduced bladder compliance and detrusor overactivity. PPI is associated with both impairment of the urethral closuring mechanism and bladder storage dysfunction.
Subject(s)
Aged , Humans , Male , Middle Aged , Prospective Studies , Prostatectomy/adverse effects , Urethra/physiopathology , Urinary Bladder/physiopathology , Urinary Bladder, Overactive/complications , Urinary Incontinence/etiology , Urodynamics/physiologyABSTRACT
PURPOSE: Existing data supports a relationship between pelvic floor dysfunction and lower urinary tract symptoms. We developed a survival model of pelvic floor dysfunction in the rabbit and evaluated cystometric (CMG), electromyographic (EMG) and ambulatory voiding behavior. MATERIALS AND METHODS: Twelve female adult virgin rabbits were housed in metabolic cages to record voiding and defecation. Anesthetized CMG/EMG was performed before and after treatment animals (n=9) received bilateral tetanizing needle stimulation to the pubococcygeous (PC) muscle and controls (n=3) sham needle placement. After 7 days all animals were subjected to tetanizing transvaginal stimulation and CMG/EMG. After 5 days a final CMG/EMG was performed. RESULTS: Of rabbits that underwent needle stimulation 7 of 9 (78%) demonstrated dysfunctional CMG micturition contractions versus 6 of 12 (50%) after transvaginal stimulation. Needle stimulation of the PC musculature resulted in significant changes in: basal CMG pressure, precontraction pressure change, contraction pressure, interval between contractions and postvoid residual; with time to 3rd contraction increased from 38 to 53 minutes (p=0.008 vs. prestimulation). Vaginal noxious stimulation resulted in significant changes in: basal CMG pressure and interval between contractions; with time to 3rd contraction increased from 37 to 46 minutes (p=0.008 vs. prestimulation). Changes in cage parameters were primarily seen after direct needle stimulation. CONCLUSIONS: In a majority of animals, tetanizing electrical stimulation of the rabbit pelvic floor resulted in voiding changes suggestive of pelvic floor dysfunction as characterized by a larger bladder capacity, longer interval between contractions and prolonged contraction duration.