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Comparison of the Components of Visual Perception and Depth Perception in Stroke Patients and Healthy Individuals

Sun, 18 Jun 2017 00:00:00 GMT

Title: Comparison of the Components of Visual Perception and Depth Perception in Stroke Patients and Healthy Individuals Authors: Ghaffari, Amin; Akbarfahimi, Malahat; Kheirollahzadeh, Mahsa; Sarvghadi, Pooria; Qafarizadeh, Fathollah Abstract: Background and Aims: Visual perception disorders are one of the most important deficits in individuals with stroke that causes limitation in daily living activities and learning self-maintenance skills and balance. The present study aimed to compare the visual perception, visual acuity, contrast sensitivity, and depth perception among three groups of healthy persons and right and left sided stroke pateints. Materials and methods: A total of 31 individuals with stroke (16 left sided and 15 right sided) and 16 healthy persons participated in the present study. Freiburg Vision Test software was used for assessing visual acuity and contrast sensitivity. Depth Perception Peg Board Set test and Developmental Test of Visual Perception-Adolescence and Adult test were used to assess depth perception and visual perception, respectively. Results: The analysis of visual perception, depth perception, visual acuity, and contrast sensitivity using ANOVA revealed that there are significant differences among the three groups (p < 0.05). Furthermore, with contrast sensitivity as a covariance, analyzed by MANOVA, it was shown that there was a significant difference among the three groups with both eyes (p < .0/05). Conclusion: Patients with stroke, in comparison with healthy persons, have difficulties in visual perception, depth perception, visual acuity, and contrast sensitivity, but there is no difference between left sided and right sided stroke.; چکیده مقدمه و اهداف اختلالات درک بینایی از مهمترین آسیبهای افراد مبتلا به سکته مغزی است که سبب محدودیت در انجام فعالیتهای روزمره زندگی، کاهش یادگیری مهارت‌های نگهداری از خود و تعادل حرکتی میگردد. هدف از پژوهش حاضر مقایسه بین ادراک بینایی، حدت بینایی، حساسیت کنتراست و ادراک عمق بین سه گروه افراد مبتلا به سکته مغزی راست و چپ و سالم است. مواد و روش ها در مطالعه حاضر 31 فرد مبتلا به سکته مغزی (16 همیپلژی چپ و 15 همیپلژی راست) و 16 نفر سالم مشارکت داشتند. از نظر حدت بینایی (Freiburg Vision Test)، حساسیت کنتراست (Freiburg Vision Test)، ادراک عمق (Depth Perception Peg Board Set) و ادراک بینایی (Developmental Test Of Visual Perception- Adolescence and Adult) موردارزیابی قرار گرفتند. یافته ها نتایج آزمون تحلیل واریانس نشان داد که در سه گروه مورد مطالعه متغیرهای ادراک بینایی، ادراک عمق، حدت بینایی و کنتراست بینایی دارای تفاوت معناداری باشد (05/0>P). همچنین با کوواریانسی حساسیت کنتراست آنالیز آزمون تحلیل واریانس چندمتغیره نشان داد در هر دو چشم، تفاوت معنادار بین زیرگروههای ادراک بینایی و ادراک عمق وجود دارد (05/0>P). نتیجه گیری افراد مبتلا به سکته مغزی دارای ادراک بینایی، ادراک عمق، حدت بینایی و حساسیت کنتراست ضعیفتری نسبت به گروه افراد سالم میباشند، اما بین دو گروه

Can we use machine learning to improve the interpretation and application of urodynamic data?: ICI-RS 2023

Fri, 03 Nov 2023 00:00:00 GMT

Title: Can we use machine learning to improve the interpretation and application of urodynamic data?: ICI-RS 2023 Authors: Gammie, Andrew; Arlandis, Salvador; Couri, Bruna M; Drinnan, Michael; Ochoa, D Carolina; Rantell, Angie; de Rijk, Mathijs; van Steenbergen, Thomas; Damaser, Margot Abstract: Introduction: A “Think Tank” at the International Consultation on Incontinence-Research Society meeting held in Bristol, United Kingdom in June 2023 considered the progress and promise of machine learning (ML) applied to urodynamic data. Methods: Examples of the use of ML applied to data from uroflowmetry, pressure flow studies and imaging were presented. The advantages and limitations of ML were considered. Recommendations made during the subsequent debate for research studies were recorded. Results: ML analysis holds great promise for the kind of data generated in urodynamic studies. To date, ML techniques have not yet achieved sufficient accuracy for routine diagnostic application. Potential approaches that can improve the use of ML were agreed and research questions were proposed. Conclusions: ML is well suited to the analysis of urodynamic data, but results to date have not achieved clinical utility. It is considered likely that further research can improve the analysis of the large, multifactorial data sets generated by urodynamic clinics, and improve to some extent data pattern recognition that is currently subject to observer error and artefactual noise.

Urodynamics assessment in patients with multiple sclerosis

Tue, 28 Apr 2026 00:00:00 GMT

Title: Urodynamics assessment in patients with multiple sclerosis Authors: Walker, Nicholas Faure; Bacon, Alexandra; Teji, Manisha; Solomon, Eskinder; Sahai, Arun; Stephens, Ross; Okpii, Emmanuel; Dunford, Charlotte; Wood, Sarah; Speck, Emily; Doherty, Ruth; Rantell, Angie; Araklitis, George; Lilis, Lydia; Nitkunan, Tharani; Carey, Michelle; Biers, Suzanne; Berry, Brendan; Pakzad, Mahreen; Hashim, Hashim Abstract: Objectives: The aim of this study is to review initial urodynamics (UDS) findings in patients with multiple sclerosis (MS) related lower urinary tract symptoms, establish where UDS happen in treatment pathways and to evaluate the benefit of video over standard UDS. Patients and Methods: OnaBotulinumToxin A (BTX-A) naïve, MS patients who had undergone UDS were identified from prospectively maintained databases from UK hospitals. Results: One hundred fifty-seven patients were identified from seven UK departments. One (0.9%) female patient and 3 (6.7%) males had end fill pressures > 40 cmH2O. No female and two (5.1%) males showed vesico-ureteric reflux. Of female patients reporting pure overactive bladder (OAB) symptoms, 61 (67.2%) showed neurogenic detrusor overactivity (NDO), 10 (11.1%) showed loss of compliance (LoC) and 28 (31.1%) showed no NDO or LoC. Following UDS, 134 (85.4%) patients underwent management changes: 61 (72.6%) females and 25 (78.1%) males were offered non-medical treatment, oral or topical medication; 30 (30.9%) females and 7 (18.9%) males were advised to start self-catheterisation; 16 (19.0%) females and 4 (12.5%) males were offered intra-vesical BTX-A; two (2.4%) females were offered SUI surgery and one (3.1%) male was offered bladder outflow obstruction surgery. Conclusion: Many patients underwent UDS prior to conservative and medical management, which is earlier than most guidelines recommend, potentially delaying non-invasive treatment. This study supports the need for VUDS at initial assessment of men with MS. Standard UDS suffice in women with MS and pure OAB symptoms unresponsive to conservative measures and oral medication unless they have abnormal renal function, hydronephrosis or significant post void volumes.

Current practice of colposuspension in the United Kingdom: Results of a national survey

Wed, 11 Mar 2026 00:00:00 GMT

Title: Current practice of colposuspension in the United Kingdom: Results of a national survey Authors: Lor, Kar Yee; Taithongchai, Annika; Araklitis, George; Waheed, Aysha; Mohamed‐Ahmed, Rayan; Rantell, Angie; Robinson, Dudley Abstract: Introduction: Colposuspension procedures have increased in the UK following the 2018 suspension of vaginal mesh for stress urinary incontinence. However, significant variation exists in preoperative assessment, patient selection, surgical approach, and postoperative care. This survey aims to explore current national practice. Material and Methods: A questionnaire was distributed to members of the British Society of Urogynaecology (BSUG) and the British Association of Urological Surgeons (BAUS). Results: Fifty-three clinicians responded; most were gynecologists with a special interest in urogynecology (60%) or urogynecology subspecialists (34%). Response rates were 12% (51/442) among BSUG members and <1% (2/2622) among BAUS members. Annual case volume was 5 to 10 for 43%, fewer than 5 for 36%, 10–20 for 19%, and >20 for 2%. Most surgeons (85%) perform preoperative urodynamics in all patients, while 15% restrict testing to women with mixed symptoms. Almost all (98.1%) would treat detrusor overactivity or symptomatic overactive bladder prior to offering colposuspension. Forty-five percent will perform colposuspension at any functional or maximum cytometric capacity; others use cutoffs of >400 mL (19%), >300 mL (26%) or >200 mL (10%). Fifty-five percent reported a BMI limit of <35, while 19% have no limit. Most surgeons favored an open approach (58%), followed by laparoscopic (38%) and robotic (4%). Sutures were usually suspended tension-free (75%) using Ethibond (53%) or PDS (40%), with 72% consenting for the use of non-absorbable sutures. For open colposuspension, two sutures bilaterally were preferred (49%), followed by three (40%) and four (11%). Laparoscopic or robotic procedures were mostly intra-peritoneal (89%), with surgeons placing two sutures bilaterally (88%) and tying their knots extracorporeally (75%). Thirty-nine percent close the peritoneum over their sutures. Routine check cystoscopy was performed by 60%. Postoperatively, indwelling urinary catheters are mostly left on free drainage (69%); 17% always use a suprapubic catheter and 4% preferred clean intermittent self-catheterization. Trial without catheter is most commonly attempted on Day 1 post-colposuspension (74%), with variable voiding criteria and acceptable post-void residuals. Conclusion: This national survey highlights marked heterogeneity in UK colposuspension practice. There is a need for comparative studies and national consensus on core technical steps to ensure safety and favorable long-term outcomes. Description: Data Availability Statement: Data sharing is not applicable to this article as no datasets were generated or analyzed during the current study.; Supporting Information is available online at: https://obgyn.onlinelibrary.wiley.com/doi/10.1111/aogs.70172#support-information-section .