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Micturition

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https://www.readbyqxmd.com/read/28916436/treating-overactive-bladder-in-older-patients-with-a-combination-of-mirabegron-and-solifenacin-a-prespecified-analysis-from-the-beside-study
#1
William Gibson, Scott MacDiarmid, Moses Huang, Emad Siddiqui, Matthias Stölzel, Nurul Choudhury, Marcus J Drake
BACKGROUND: The BESIDE study demonstrated that combination therapy (mirabegron and solifenacin 5mg) improved overactive bladder symptoms versus solifenacin 5mg or 10mg, and was well tolerated. OBJECTIVE: To ensure efficacy and safety is maintained in older patients (>65 yr), who usually experience greater symptom severity and comorbidities, a prespecified subanalysis stratified by age group was conducted. DESIGN, SETTING, AND PARTICIPANTS: Patients remaining incontinent (≥1 episode during 3-d diary) following 4-wk single-blind daily solifenacin 5mg were randomized 1:1:1 to a daily double-blind combination (solifenacin 5mg and mirabegron 25mg, increased to 50mg at wk 4), solifenacin 5mg or 10mg for 12 wk...
September 12, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28886046/effects-of-water-avoidance-stress-on-peripheral-and-central-responses-during-bladder-filling-in-the-rat-a-multidisciplinary-approach-to-the-study-of-urologic-chronic-pelvic-pain-syndrome-mapp-research-network-study
#2
Zhuo Wang, Harriet H Chang, Yunliang Gao, Rong Zhang, Yumei Guo, Daniel P Holschneider, Larissa V Rodriguez
Stress plays a role in the exacerbation and possibly the development of functional lower urinary tract disorders. Chronic water avoidance stress (WAS) in rodents is a model with high construct and face validity to bladder hypersensitive syndromes, such as interstitial cystitis/bladder pain syndrome (IC/BPS), characterized by urinary frequency and bladder hyperalgesia and heightened stress responsiveness. Given the overlap of the brain circuits involved in stress, anxiety, and micturition, we evaluated the effects chronic stress has on bladder function, as well as its effects on regional brain activation during bladder filling...
2017: PloS One
https://www.readbyqxmd.com/read/28885782/evaluation-of-pulse-width-of-spinal-nerve-stimulation-in-a-rat-model-of-bladder-micturition-reflex
#3
Xin Su, Heather A Simenson, David A Dinsmoor, Heather D Orser
OBJECTIVES: The spinal nerve stimulation (SNS) evoked motor threshold (Tmot ) response across different pulse-widths (PWs) was first explored and a subset of selected stimulation PWs were further assessed with respect to bladder reflex contraction (BRC). MATERIALS AND METHODS: In anesthetized female rats, wire electrodes were placed under each of the L6 spinal nerves to produce bilateral SNS. The relationship of Tmot response with PW was analyzed using a monoexponential nonlinear regression...
September 8, 2017: Neuromodulation: Journal of the International Neuromodulation Society
https://www.readbyqxmd.com/read/28871426/assessment-of-overactive-bladder-symptoms-among-women-with-successful-pessary-placement
#4
Dimitrios Zacharakis, Themos Grigoriadis, Eleni Pitsouni, Kostas Kypriotis, Nikistratos Vogiatzis, Stavros Athanasiou
INTRODUCTION AND HYPOTHESIS: The causal association between pelvic organ prolapse (POP) and overactive bladder (OAB) symptoms is supported by several theories. The aim of this study is to assess any changes in OAB symptoms among women with POP and OAB after successful pessary placement. METHODS: During the study period, all women with symptomatic POP stage II or greater and OAB symptoms were offered the solution of either a ring or a Gellhorn pessary. All patients were asked to complete a 3-day micturition/incontinence diary...
September 4, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28871388/long-term-micturition-problems-of-asymptomatic-postpartum-urinary-retention-a-prospective-case-control-study
#5
Femke E M Mulder, Robert A Hakvoort, Jan-Peter de Bruin, Erica W Janszen, Joris A M van der Post, Jan-Paul W R Roovers
INTRODUCTION AND HYPOTHESIS: Covert (asymptomatic) postpartum urinary retention (PUR) is defined as post-void residual volume (PVRV) ≥150 mL. Although often supposed to be a common and harmless phenomenon, no data are available on the potential long-term micturition problems of increased PVRV after vaginal delivery. METHODS: After the first spontaneous void post-vaginal delivery, PVRV was measured using a portable scanning device. Micturition symptoms were compared using validated questionnaires between women with PVRV < 150 mL and those with PVRV ≥150 mL until 1 year after delivery...
September 4, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28868507/evaluation-of-the-incidence-and-risk-factors-associated-with-persistent-frequency-in-interstitial-cystitis-bladder-pain-syndrome-and-the-efficacy-of-antimuscarinic-treatment
#6
Aram Kim, Kyeong-Ok Hoe, Jung Hyun Shin, Myung-Soo Choo
PURPOSE: To investigate the incidence and risk factors associated with persistent urinary frequency, and to evaluate the efficacy of antimuscarinic treatment. MATERIALS AND METHODS: Interstitial cystitis/bladder pain syndrome (IC/BPS) patients complaining of persistent urinary frequency despite improved pain were evaluated. Before initial conventional treatment, each patient completed a voiding diary and symptom questionnaires. After conventional treatment, patients were divided according to the presence of pain and frequency...
September 2017: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/28858408/clinical-characteristics-of-stroke-occurring-in-the-toilet-are-older-adults-more-vulnerable
#7
Joji Inamasu, Kazuhiro Tomiyasu, Satoru Miyatake, Keita Mayanagi, Masami Yoshii, Masashi Nakatsukasa
AIM: While autonomic imbalance during defecation/micturition can cause hemodynamic instability, stroke occurring in the toilet has rarely been investigated. The objective of the present study was to clarify the frequency and clinical characteristics of toilet-related stroke. METHODS: Clinical data prospectively acquired between January 2011 and December 2015 on 1939 patients with acute stroke (1224 cerebral infarctions [CI], 505 intracerebral hemorrhages [ICH] and 210 subarachnoid hemorrhages [SAH]) were reviewed to identify patients with a toilet-related stroke...
August 31, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/28856403/comparison-of-clean-intermittent-and-transurethral-indwelling-catheterization-for-the-treatment-of-overt-urinary-retention-after-vaginal-delivery-a-multicentre-randomized-controlled-clinical-trial
#8
Femke E M Mulder, Robert A Hakvoort, Jan P de Bruin, Joris A M van der Post, Jan-Paul W R Roovers
INTRODUCTION AND HYPOTHESIS: Overt postpartum urinary retention (PUR) is the inability to void after delivery and affects up to 7% of patients. Clean intermittent catheterization (CIC) and transurethral indwelling catheterization (TIC) are both standard treatments, but have not previously been compared. Clinical guidelines on postpartum bladder management are lacking. METHODS: A total of 85 patients were randomised for TIC (n=45) and CIC (n=40). In total 68 patients (34 patients with TIC and 34 patients with CIC) completed the UDI-6 questionnaire 3 months after delivery...
August 30, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28852460/ureterovaginal-fistula-following-spontaneous-vaginal-delivery-repaired-by-vaginal-ureteroneocystostomy-in-a-low-resource-setting
#9
Sunday J Lengmang, Abubakar B Dakingari, Paul Ushie, George A A Chima, Edwin Oseni-Momudu
Ureterovaginal fistula commonly follows ureteric injury during pelvic surgery, and presents with continuous urinary incontinence in spite of normal micturition. Continuous urinary incontinence has significant impact on quality of life, thus requiring effective surgical intervention in order to restore health. We found no reported case of ureterovaginal fistula following spontaneous vaginal delivery with prolonged obstructed labour. Relevant history and simple diagnostic procedures were used for diagnosis and the patient had successful vaginal ureteroneocystostomy...
July 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28841883/are-women-adequately-informed-before-gynaecological-surgery
#10
Mojgan Pakbaz, Ewa Rolfsman, Mats Löfgren
BACKGROUND: Surgery for pelvic organ prolapse, urinary incontinence, and hysterectomy are the most common gynaecological surgeries that can affect the function of the bladder and bowel as well as one's sexual life. There is evidence that adequate patient information given preoperatively regarding expected outcomes of surgery is important because well-informed patients are more satisfied with the results of surgery and recover faster. However, there is little known about the amount and quality of information given to women before surgery...
August 25, 2017: BMC Women's Health
https://www.readbyqxmd.com/read/28835612/reorganization-of-mammalian-body-wall-patterning-with-cloacal-septation
#11
Margaret I Hall, José R Rodriguez-Sosa, Jeffrey H Plochocki
Septation of the cloaca is a unique mammalian adaptation that required a novel reorganization of the perineum-the caudal portion of the trunk body wall not associated with the hindlimb. Fish, the basal vertebrates, separate ventrolateral body wall musculature of the trunk into two discrete layers, while most tetrapods expand this pattern in the thorax and abdomen into four. Mammals, the only vertebrate group to divide the cloaca into urogenital and anorectal portions, exhibit complex muscle morphology in the perineum...
August 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28835420/evaluating-the-voiding-spot-assay-in-mice-a-simple-method-with-complex-environmental-interactions
#12
Huan Chen, Lanlan Zhang, Warren G Hill, Weiqun Yu
The voiding spot assay (VSA) on filter paper is an increasingly popular method for studying lower urinary tract physiology in mice. However, the ways VSA are performed differ significantly between laboratories, and many variables are introduced compared to the mouse's normal housing situation. Rodents are intelligent social animals, and it is increasingly understood that social and environmental stresses have significant effects on their physiology. Surprisingly, little is known about whether change of environment during VSA affects mouse voiding, and what the best methodologies are for retaining 'natural' micturition patterns...
August 23, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28835278/alpha1a-adrenoceptor-antagonist-improves-underactive-bladder-associated-with-diabetic-cystopathy-via-bladder-blood-flow-in-rats
#13
Saori Yonekubo, Satoshi Tatemichi, Kazuyasu Maruyama, Mamoru Kobayashi
BACKGROUND: Patients with diabetes experience lower urinary tract symptoms. Cystopathy may evolve into underactive bladder (UAB), depending on the degree and duration of the symptoms. In the present study, we aimed to investigate the effects of silodosin, an alpha1A-adrenoceptor (AR) antagonist, on UAB in a rat model of diabetes mellitus (DM). METHODS: Female Sprague-Dawley rats (6 weeks old) were administered streptozotocin (STZ) (50 mg/kg, i.v.) to establish a DM model...
August 23, 2017: BMC Urology
https://www.readbyqxmd.com/read/28834453/intravesical-rad-ifn%C3%AE-syn3-for-patients-with-high-grade-bacillus-calmette-guerin-refractory-or-relapsed-non-muscle-invasive-bladder-cancer-a-phase-ii-randomized-study
#14
Neal D Shore, Stephen A Boorjian, Daniel J Canter, Kenneth Ogan, Lawrence I Karsh, Tracy M Downs, Leonard G Gomella, Ashish M Kamat, Yair Lotan, Robert S Svatek, Trinity J Bivalacqua, Robert L Grubb, Tracey L Krupski, Seth P Lerner, Michael E Woods, Brant A Inman, Matthew I Milowsky, Alan Boyd, F Peter Treasure, Gillian Gregory, David G Sawutz, Seppo Yla-Herttuala, Nigel R Parker, Colin P N Dinney
Purpose Many patients with high-risk non-muscle-invasive bladder cancer (NMIBC) are either refractory to bacillus Calmette-Guerin (BCG) treatment or may experience disease relapse. We assessed the efficacy and safety of recombinant adenovirus interferon alfa with Syn3 (rAd-IFNα/Syn3), a replication-deficient recombinant adenovirus gene transfer vector, for patients with high-grade (HG) BCG-refractory or relapsed NMIBC. Methods In this open-label, multicenter (n = 13), parallel-arm, phase II study ( ClinicalTrials...
August 23, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28828518/favorable-outcome-of-conservative-management-of-extensive-bladder-ischemia-complicating-prostatic-artery-embolization
#15
Hippocrates Moschouris, Konstantinos Stamatiou, Ioannis Kornezos, Victoria Kartsouni, Katerina Malagari
This is a report of a case of bladder ischemia which complicated bilateral prostatic artery embolization in an 80-year-old man with benign prostate hyperplasia and indwelling bladder catheter. Reflux of 100 μm microspheres into superior vesical arteries was the most likely cause. An unenhanced computed tomography (CT) scan performed immediately post-embolization showed retention of contrast in the left anterolateral bladder wall. Five days later, CT showed gas collections and dehiscence of the bladder wall at the same site, involving an area of 47 × 42 mm...
August 21, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28826558/elucidating-mechanisms-of-bladder-repair-after-hyaluronan-instillation-in-ketamine-induced-ulcerative-cystitis-in-animal-model
#16
Yi-Lun Lee, Kun-Ling Lin, Shu-Mien Chuang, Yung-Chin Lee, Mei-Chin Lu, Bin-Nan Wu, Wen-Jeng Wu, Shyng-Shiou F Yuan, Wan-Ting Ho, Yung-Shun Juan
Ketamine-induced ulcerative cystitis (KIC) initially damaged the bladder mucosa and induced contracted bladder thereafter. Hyaluronan (hyaluronic acid; HA) instillation to the bladder has been used to treat KIC. The present study investigated bladder injury by urothelial defect and HA degeneration and bladder repair by urothelium proliferation and differentiation. This work was based on the hypothesis that HA treatment altered the bladder urothelial layer and the expression of hyaluronan-metabolizing enzymes and/or HA receptors in KIC...
September 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28799018/an-immunogenic-peptide-t2-induces-interstitial-cystitis-painful-bladder-syndrome-an-autoimmune-mouse-model-for-interstitial-cystitis-painful-bladder-syndrome
#17
Li Zhang, Awais Ullah Ihsan, Yanfang Cao, Farhan Ullah Khan, Yijie Cheng, Lei Han, Xiaohui Zhou
The exact pathophysiology of interstitial cystitis/painful bladder syndrome is unknown; however, autoimmunity is a valid theory. We developed an autoimmune chronic cystitis model by administration of the medium dose of immunogenic peptide T2. Sixty female C57BL/6 mice were divided into six groups. The control group was not treated with any reagent. CFA group was injected with CFA + normal saline, homogenate group with bladder homogenate + CFA, low-dose group with low dose of T2 peptide + CFA, medium dose group with the medium dose of T2 peptide + CFA, and high-dose group with the high dose of T2 peptide + CFA...
August 10, 2017: Inflammation
https://www.readbyqxmd.com/read/28776505/effects-of-cathodal-trans-spinal-direct-current-stimulation-on-lower-urinary-tract-function-in-normal-and-spinal-cord-injury-mice-with-overactive-bladder
#18
Zaghloul Ahmed
OBJECTIVE: Lower urinary tract (LUT) dysfunction is a monumental problem affecting quality of life following neurotrauma, such as spinal cord injury (SCI). Proper function of the bladder and its associated structures depends on coordinated activity of the neuronal circuitry in the spinal cord and brain. Disconnection between the spinal and brain centers controlling the LUT causes fundamental changes in the mechanisms involved in the micturition and storage reflexes. We investigated the effects of cathodal trans-spinal direct current stimulation (c-tsDCS) of the lumbosacral spine on bladder and external urinary sphincter (EUS) functions...
August 4, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28775080/nephrolithisis-in-a-newborn-a-rare-case-and-review-of-literature
#19
Kawaljit Singh, Ashok Kumar Sokhal, Satyanarayan Sankhwar, Bimalesh Purkait
Nephrolithiasis, although a common entity in adults, is less common in children and rare in newborns. The evaluation and management strategies of renal stones in neonates are unclear. We report a rare scenario of renal calculus in a newborn aged 3 days presenting with decreased urine output, fever and crying during micturition. Patient was thoroughly investigated and managed conservatively. Further follow-up showed increase in stone size with recurrent urinary tract infections, hence shock wave lithotripsy was performed to successfully break and clear the stone fragments...
August 3, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28768664/preventative-effects-of-a-hif-inhibitor-17-dmag-on-partial-bladder-outlet-obstruction-induced-bladder-dysfunction
#20
Nao Iguchi, M İrfan Dönmez, Anna P Malykhina, Alonso Carrasco, Duncan T Wilcox
Posterior urethral valves are the most common cause of partial bladder outlet obstruction (PBOO) in the pediatric population. Pathological changes in the bladder developed during PBOO are responsible for long-lasting voiding dysfunction in this population despite early surgical interventions. Increasing evidence showed PBOO induces an upregulation of Hypoxia inducible factors (HIFs) and their transcriptional target genes, and they play a role in pathophysiological changes in the obstructed bladders. We hypothesized that blocking HIF pathways can prevent PBOO-induced bladder dysfunction...
August 2, 2017: American Journal of Physiology. Renal Physiology
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