Search results for "Ladder"
showing 10 items of 674 documents
Automatic classification of tissues on pelvic MRI based on relaxation times and support vector machine
2019
International audience; Tissue segmentation and classification in MRI is a challenging task due to a lack of signal intensity standardization. MRI signal is dependent on the acquisition protocol, the coil profile, the scanner type, etc. While we can compute quantitative physical tissue properties independent of the hardware and the sequence parameters, it is still difficult to leverage these physical properties to segment and classify pelvic tissues. The proposed method integrates quantitative MRI values (T1 and T2 relaxation times and pure synthetic weighted images) and machine learning (Support Vector Machine (SVM)) to segment and classify tissues in the pelvic region, i.e.: fat, muscle, …
Regeneration of lingual musculature in rats using myoblasts over porcine bladder acellular matrix
2020
To use tissue engineering muscle repair (TEMR) for regenerating the lingual musculature of hemiglossectomized rats using neonatal myoblasts (NM) on porcine acellular urinary bladder matrix (AUBM).The study used 80 male rats. A volumetric muscle loss (VML) injury was created on the left side of the tongue. The rats were randomized into four groups: Group 1 (AUBM + myoblasts); Group 2 (AUBM); Group 3 (myoblasts); and Group 4 (control). NM were obtained from neonatal rats. The animals were weighed on day 0 and just before euthanasia. Five rats in each group were euthanized at days 2, 14, 28, and 42; the tongues were prepared for morphometric analysis, postoperative left hemitongue weight, and …
Cognitive and mood side effects of lower urinary tract medication
2019
Introduction: Muscarinic receptor antagonists, 5α-reductase inhibitors and α1-adrenoceptor antagonists are frequently used drug classes for the treatment of lower urinary tract symptoms including those of overactive bladder syndrome and benign prostatic enlargement/benign prostatic obstruction. Areas covered: The authors review the evidence for adverse effects of these drug classes on cognitive function, mood and other functions of the central nervous system and discuss such effects against the evidence for mechanistic plausibility. Expert opinion: Muscarinic antagonists carry a risk for impaired cognition and other brain functions that differs quantitatively between compounds, being highes…
Use of Solovov-Badenoch principle in treating severe and recurrent vesico-urethral anastomosis stricture after radical retropubic prostatectomy: tech…
2012
What's known on the subject? and What does the study add? Many different approaches have been used to treat bladder neck strictures and urinary incontinence after radical prostatectomy in the past. Most techniques are highly invasive and carry a high risk of complications. The present study describes the use of the Solovov-Badenoch 'pull-through urethroplasty' as well as artificial urinary sphincter implantation.• To report our experience in the management of patients with combined urinary incontinence and stricture after radical prostatectomy with a two-step approach: urethroplasty with a 'pull-through' technique after the Solovov-Badenoch principle; and artificial urinary sphincter (AUS) …
High-Grade T1 on Re-Transurethral Resection after Initial High-Grade T1 Confers Worse Oncological Outcomes: Results of a Multi-Institutional Study
2018
The aim of this multicenter study was to investigate the prognostic impact of residual T1 high-grade (HG)/G3 tumors at re-transurethral resection (TUR of bladder tumor) in a large multi-institutional cohort of patients with primary T1 HG/G3 bladder cancer (BC).
Hypospadias and bladder exstrophy
2002
Reconstructive surgery for patients with hypospadias, bladder exstrophy and cloacal exstrophy is challenging. Over the last few years, more and more data have become available concerning incidence and epidemiology, as well as short- and long-term results of surgical techniques. The tubularized incised plate urethroplasty for hypospadias repair continues to gain in popularity. However, the results of long-term studies of larger series supporting this enthusiasm are still missing. Buccal mucosa is more frequently used in complex hypospadias cases with good short- and long-term results. The one-stage approach of exstrophy repair seems to be promising. However, failures, which require very comp…
Concordance and Clinical Significance of Uncommon Variants of Bladder Urothelial Carcinoma in Transurethral Resection and Radical Cystectomy Specimens
2014
To evaluate the concordance and prognostic role of histologic variants of bladder urothelial carcinoma in transurethral resection of bladder tumor (TURBT) and radical cystectomy (RC) specimens. METHODS Clinicopathologic information available at the time of RC and follow-up data from 4110 RC specimens, collected between January 2000 and December 2009 at 17 tertiary referral centers were retrospectively analyzed and evaluated for the presence or absence of uncommon variants of bladder urothelial carcinoma. The presence or absence of uncommon variants of bladder urothelial carcinoma was evaluated on previous TURBT specimens of patients undergoing RC. Cox regression was used to assess the impac…
The Khorana Score in Predicting Venous Thromboembolism for Patients With Metastatic Urothelial Carcinoma and Variant Histology Treated With Chemother…
2017
Background: The Khorana score is a predictive risk model for venous thromboembolism (VTE) in patients with cancer planning to receive chemotherapy. Urothelial carcinoma and variant histologies (UC/VH) were underrepresented in the model. We sought to evaluate whether the Khorana score predicts for VTE in a retrospective multinational data set of patients with metastatic UC/VH. Methods: Patients diagnosed with metastatic UC/VH who received chemotherapy were eligible. Those with incomplete or miscoded data were excluded. Khorana scores were calculated based on the pretreatment data and categorized into high (≥3) or intermediate (1-2) VTE risk. Other patient-, tumor-, and therapy-related factor…
Expression of transketolase TKTL1 predicts colon and urothelial cancer patient survival: Warburg effect reinterpreted
2006
Abstract Tumours ferment glucose to lactate even in the presence of oxygen (aerobic glycolysis; Warburg effect). The pentose phosphate pathway (PPP) allows glucose conversion to ribose for nucleic acid synthesis and glucose degradation to lactate. The nonoxidative part of the PPP is controlled by transketolase enzyme reactions. We have detected upregulation of a mutated transketolase transcript (TKTL1) in human malignancies, whereas transketolase (TKT) and transketolase-like-2 (TKTL2) transcripts were not upregulated. Strong TKTL1 protein expression was correlated to invasive colon and urothelial tumours and to poor patients outcome. TKTL1 encodes a transketolase with unusual enzymatic prop…
OnabotulinumtoxinA: how deep will it go?
2014
First-line treatment of overactive bladder syndrome (OAB) is based on conservative measures and oral medication such asmuscarinic receptor antagonists and, more recently, b3-adrenoceptor agonists.While this provides effective symptom relief for many patients, for others it has insufficient efficacy and/or intolerable side effects. The potent neurotoxin onabotulinumtoxinA (BoNT-A) has shown efficacy in placebo-controlled trials in patients with neurogenic voiding dysfunction or OAB [1], largely including patients exhibiting an insufficient treatment response to muscarinic antagonists. Although the role of a strong placebo component in the beneficial effects of oral treatment is well known, a…