368 results on '"Rajesh, Nair"'
Search Results
2. Treatment preferences of patients with muscle invasive bladder cancer: A discrete choice experiment
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Liam Mannion, Verity Watson, Vinod Mullassery, Rajesh Nair, Thomas Charlton, Margaret Northover, Deborah Enting, Mieke Van Hemelrijck, Muhammad Shamim Khan, Ramesh Thurairaja, Suzanne Amery, Kathryn Chatterton, Kate Smith, and Simon Hughes
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cancer treatment preferences ,discrete choice experiment ,muscle invasive bladder cancer ,patient choice ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Background When faced with treatment options, patients are asked to participate in decision‐making. We sought to determine which treatment aspects matter most for individuals treated for muscle invasive bladder cancer (MIBC), with an aim to improve understanding of patient preferences and what trade‐offs patients are willing to accept. Our study consisted of a discrete choice experiment (DCE): a type of questionnaire used to elicit preferences in the absence of real‐world choice. Methods The DCE had five attributives, each with three levels. Participants were asked to complete a questionnaire in which they were asked to choose between two hypothetical MIBC treatments. The data were analysed using a conditional logit model, and preferences for, and trade‐offs between, attributes were estimated. Results We recruited patients with MIBC who had either already completed, were undergoing or had yet to commence radical treatment for MIBC (n = 60). Participants indicated a strong preference for treatments that increased their life expectancy (p =
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- 2024
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3. Cross-Modal Attention for Multimodal Information Fusion: A Novel Approach to Attention Deficit Hyperactivity Disorder Detection.
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Christian Nash, Rajesh Nair, and Syed Mohsen Naqvi
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- 2024
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4. Harnessing Video Intelligence: Intelligent System for ADHD Detection.
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Yichun Li, Rajesh Nair, and Syed Mohsen Naqvi
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- 2024
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5. Muco-mucosal anastomotic non-transecting augmentation (MANTA) ureteroplasty
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Jonathan Kam, Anthony Emmanuel, Francesco Del Giudice, Majed Shabbir, and Rajesh Nair
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Upper tract reconstruction ,Ureteroplasty ,Ureteric stricture ,Buccal mucosa graft ,Augmentation ureteroplasty ,Surgery ,RD1-811 ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Introduction & Objectives: Revision ureteric reconstruction is often very challenging due to limited ureteric length and compromised blood supply. We aimed to describe a technique of a non-transecting augmentation ureteroplasty with buccal mucosal graft for a patient with a recurrent ureteric stricture. This technique was adapted from the urethroplasty literature and applied to upper tract reconstruction. Methods: A 70 year old male had previously underwent a diverticulectomy and boari flap reimplantation for urothelial cancer. The anastomosis strictured and a revision ureteric reimplantation was performed which also subsequently strictured. A stent was not able to be placed across the stricture so the patient was nephrostomy dependent. A buccal mucosal graft augmentation was performed using a muco-mucosal anastomotic non-transecting augmentation (MANTA) technique adapted from the urethroplasty literature Results: The patient recovered well and was discharged day 3. A cystogram was performed and catheter removed at 4 weeks. The stent was removed at 6 weeks and a retrograde pyelogram showed a normal ureteric caliber. A MAG-3 renogram at 3 months showed no obstruction Conclusions: We describe a novel technique for difficult revision upper tract reconstruction cases.
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- 2025
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6. Insights Into Detecting Adult ADHD Symptoms Through Advanced Dual-Stream Machine Learning
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Christian Nash, Rajesh Nair, and Syed Mohsen Naqvi
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Attention deficit hyperactivity disorder ,deep learning ,machine learning ,mental health ,video ,Medical technology ,R855-855.5 ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Advancements in machine learning offer promising avenues for the identification of ADHD symptoms in adults, an endeavour traditionally encumbered by the intricacies of human behavioural patterns. In this paper, we introduce three innovative dual-stream models. The proposed approach utilises a novel multi-modal dataset recorded for ADHD symptoms detection, leveraging RGB video alongside facial, body posture and hand landmark data. The fusion of these different sub-modalities within video enhances the discriminative capability of the ADHD symptoms detection system. A primary objective was to maintain minimal model depth while achieving competitive performance. Through randomised search cross-validation and a rigorous leave-one-out validation scheme, the proposed model achieves high generalisability and robust symptom identification, suggesting strong potential for application in clinical environments. Evaluation boasts the state-of-the-art performance of the proposed model, demonstrating an accuracy of 98.67%, a precision of 98.01%, and a recall of 98.88%. These metrics attest to the model’s ability to consistently identify ADHD symptoms while maintaining a minimal parameter footprint. This delicate balance provides a significant step forward in behavioural health analytics.
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- 2024
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7. Acoustic and Text Features Analysis for Adult ADHD Screening: A Data-Driven Approach Utilizing DIVA Interview
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Shuanglin Li, Rajesh Nair, and Syed Mohsen Naqvi
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Adults ADHD ,speech modality ,text modality ,feature study ,machine learning ,Computer applications to medicine. Medical informatics ,R858-859.7 ,Medical technology ,R855-855.5 - Abstract
Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder commonly seen in childhood that leads to behavioural changes in social development and communication patterns, often continues into undiagnosed adulthood due to a global shortage of psychiatrists, resulting in delayed diagnoses with lasting consequences on individual’s well-being and the societal impact. Recently, machine learning methodologies have been incorporated into healthcare systems to facilitate the diagnosis and enhance the potential prediction of treatment outcomes for mental health conditions. In ADHD detection, the previous research focused on utilizing functional magnetic resonance imaging (fMRI) or Electroencephalography (EEG) signals, which require costly equipment and trained personnel for data collection. In recent years, speech and text modalities have garnered increasing attention due to their cost-effectiveness and non-wearable sensing in data collection. In this research, conducted in collaboration with the Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust, we gathered audio data from both ADHD patients and normal controls based on the clinically popular Diagnostic Interview for ADHD in adults (DIVA). Subsequently, we transformed the speech data into text modalities through the utilization of the Google Cloud Speech API. We extracted both acoustic and text features from the data, encompassing traditional acoustic features (e.g., MFCC), specialized feature sets (e.g., eGeMAPS), as well as deep-learned linguistic and semantic features derived from pre-trained deep learning models. These features are employed in conjunction with a support vector machine for ADHD classification, yielding promising outcomes in the utilization of audio and text data for effective adult ADHD screening. Clinical impact: This research introduces a transformative approach in ADHD diagnosis, employing speech and text analysis to facilitate early and more accessible detection, particularly beneficial in areas with limited psychiatric resources. Clinical and Translational Impact Statement: The successful application of machine learning techniques in analyzing audio and text data for ADHD screening represents a significant advancement in mental health diagnostics, paving the way for its integration into clinical settings and potentially improving patient outcomes on a broader scale.
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- 2024
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8. Olfactory reference disorder—a review
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Savitha Soman and Rajesh Nair
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Olfactory Reference Syndrome ,Body odour ,Somatic preoccupation ,Rituals ,Ideas of reference ,Psychiatry ,RC435-571 - Abstract
Abstract Olfactory Reference Disorder (ORD) is a known clinical entity for several decades; however, it is only in ICD 11 that it has found its niche. Long considered a delusional disorder, it is currently classified as an obsessive–compulsive (OC) spectrum disorder. ORD is characterised by an erroneous conviction that the body is emitting an unpleasant smell. Patients harbour referential thinking, practise rituals to eliminate or mask the perceived odour, and avoid social interactions. While the conviction can be at a delusional level in some patients, the preoccupation has an obsessive quality in others. The level of insight can be varied. Patients present to mental health settings after traversing a long pathway of care comprising of various specialists. Medical and psychiatric conditions which can present with ORD-like symptoms need to be ruled out. Establishing a therapeutic alliance is the first step in management. There are no randomised controlled trials comparing treatment options in ORD. Antidepressants, antipsychotics, and their combinations have been used with varying degrees of success, in addition to psychotherapy and electroconvulsive therapy. Data on prognosis is limited.
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- 2023
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9. ADHD diagnosis based on action characteristics recorded in videos using machine learning.
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Yichun Li, Syes Mohsen Naqvi, and Rajesh Nair
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- 2024
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10. Video-Based Skeleton Data Analysis for ADHD Detection.
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Yichun Li, Rajesh Nair, and Syed Mohsen Naqvi
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- 2023
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11. Detecting ADHD from Speech Using Full-Band and Sub-Band Convolution Fusion Network.
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ShuangLin Li, Rajesh Nair, and Syed Mohsen Naqvi
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- 2023
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12. ANN Inference enabled by Variability Mitigation using 2T-1R Bit Cell-based Design Space Analysis.
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Shreyas Deshmukh, Vivek Saraswat, Venkatesh Gopinath, Rajesh Nair, Laxmeesha Somappa, Maryam Shojaei Baghini, and Udayan Ganguly
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- 2023
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13. Corrigendum to 'RPN (Radius, Position of tumour, iNvasion of renal sinus) Classification and Nephrometry Scoring System: An Internationally Developed Clinical Classification To Describe the Surgical Difficulty for Renal Masses for Which Robotic Partial Nephrectomy Is Planned' [Eur. Urol. Open Sci. 54 (2023) 33–42]
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Dinesh K. Agarwal, Clancy Mulholland, Digsu N. Koye, Niranjan Sathianathen, Henry Yao, Philip Dundee, Daniel Moon, Marc Furrer, Christina Giudice, Wayland Wang, Julie A. Simpson, Jamie Kearsley, Briony Norris, Homi Zargar, Henry Y.C. Pan, Alex Mottrie, Andrew Fuller, Angelo Mottaran, Ben Challacombe, Boon Kua, Charles Metcalfe, Christian Wagner, Deepak Dubey, Fernando Gomez Sancha, Franck Bruyère, Gagan Gautam, Ginil K. Pooleri, Giorgio Bozzini, Howard Lau, Isaac Thyer, Jeremy Teoh, Justin Vass, Justin Vivian, Kara McDermott, Mathew Winter, Narasimhan Ragavan, Nicholas Campbell, Nina N. Harke, Patrick O. Richard, Patrick Teloken, Peter Dekuyper, Peter Sutherland, Rajesh Ahlawat, Rajesh Nair, Richard Pemberton, Rick Catterwell, Robert J.A. Oomen, Robin Weston, Rudolf Moritz, Raghunath S. Krishnappa, Scott Leslie, Scott Van Appledorn, T.B. Yuvaraja, Thibault Meert, Thierry Dujardin, Tobias Gross, Tom Walton, William C. Huang, Yves Caumartin, Ashwin Agarwal, Nathan Lawrentschuk, and Niall M. Corcoran
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Diseases of the genitourinary system. Urology ,RC870-923 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2024
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14. A cohort profile of the Graham Roberts study cohort
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Beth Russell, Poppy Leech, Harriet Wylie, Charlotte Louise Moss, Anna Haire, Deborah Enting, Suzanne Amery, Kathryn Chatterton, Muhammad Shamim Khan, Ramesh Thurairaja, Rajesh Nair, Sachin Malde, Kate Smith, Cheryl Gillett, Debra Josephs, Elias Pintus, Sarah Rudman, Simon Hughes, Clare Relton, and Mieke Van Hemelrijck
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trials within cohorts ,cohort profile ,non-muscle invasive bladder cancer (NMIBC) ,muscle invasive bladder cancer (MIBC) ,questionnaires ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
PurposeThe Graham Roberts Study was initiated in 2018 and is the first Trials Within Cohorts (TwiCs) study for bladder cancer. Its purpose is to provide an infrastructure for answering a breadth of research questions, including clinical, mechanistic, and supportive care centred questions for bladder cancer patients.ParticipantsAll consented patients are those aged 18 or older, able to provide signed informedconsent and have a diagnosis of new or recurrent bladder cancer. All patients are required to have completed a series of baseline questionnaires. The questionnaires are then sent out every 12 months and include information on demographics and medical history as well as questionnaires to collect information on quality of life, fatigue, depression, overall health, physical activity, and dietary habits. Clinical information such as tumor stage, grade and treatment has also been extracted for each patient.Findings to dateTo date, a total of 125 bladder cancer patients have been consented onto the study with 106 filling in the baseline questionnaire. The cohort is made up of 75% newly diagnosed bladder cancer patients and 66% non-muscle invasive bladder cancer cases. At present, there is 1-year follow-up information for 70 patients, 2-year follow-up for 57 patients, 3-year follow-up for 47 patients and 4-year follow-up for 19 patients.Future plansWe plan to continue recruiting further patients into the cohort study. Using the data collected within the study, we hope to carry out independent research studies with a focus on quality of life. We are also committed to utilizing the Roberts Study Cohort to set up and commence an intervention. The future studies and trials carried out using the Roberts Cohort have the potential to identify and develop interventions that could improve the prevention, diagnosis, and treatment of bladder cancer.
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- 2024
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15. Evolution and Implications of the Novel CAMUS Reporting and Classification System: From Rationale to End Product
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Christopher Soliman, Benjamin C. Thomas, Gianluca Giannarini, Nathan Lawrentschuk, Patrick Y. Wuethrich, Prokar Dasgupta, Sachin Malde, Rajesh Nair, Philip Dundee, and Marc A. Furrer
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Diseases of the genitourinary system. Urology ,RC870-923 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2023
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16. Machine Learning in ADHD and Depression Mental Health Diagnosis: A Survey.
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Christian Nash, Rajesh Nair, and Syed Mohsen Naqvi
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- 2023
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17. 48 Blood-based peripheral T cell cytotoxicity assay in predicting response to immune checkpoint inhibitors: a US pilot study
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Yali Li, Rajesh Nair, Shumei Kato, Suzanna Lee, Kota Iwahori, Jonathon Woo, Michele Baltay, Junichi Akatsuka, Srinath Sampath, Christian Schmedt, and Srihari Sampath
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2023
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18. Proposed synergies between oceanography and metrology
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Susan E. Hartman, Andrew R. Gates, Patricia Lopez-Garcia, Roberto Bozzano, Eric Delory, Paolo Favali, Dominique Lefevre, Laure Chirurgien, Sara Pensieri, George Petihakis, Rajesh Nair, Silvana Neves, Juan José Dañobeitia, Florence Salvetat, Marc Le Menn, Jukka Seppälä, Katrin Schroeder, and Jaume Piera
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essential ocean variables (EOVs) ,metrology ,ocean sound ,dissolved oxygen ,carbonate system ,chlorophyll-fluorescence ,Science ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
Accurate and traceable measurements are required to understand ocean processes, to address pressing societal challenges, such as climate change and to sustainably manage marine resources. Although scientific and engineering research has resulted in advanced methods to measure Essential Ocean Variables (EOVs) there is a need for cross comparison of the techniques and traceability to recognized standards. Metrological laboratories are experienced in accredited methods and assessment of methodology. An EU INFRAIA-02-2020: Integrating Activities for Starting Communities project MINKE (Metrology for Integrated marine maNagement and Knowledge-transfer nEtwork https://minke.eu) brings European marine science and metrology Research Infrastructures together to identify synergies and create an innovative approach to Quality Assurance of oceanographic data. Quality depends both on the accuracy (that can be provided through the metrology component) and the completeness of the data sets. The collaboration between different Marine Research Infrastructures (RIs) places a fundamental role on assuring the completeness of the datasets, particularly at global scales. The MINKE project encourages enhancement through collaboration of national metrology laboratories and the oceanographic community. Metrological assessment of the accuracy and uncertainties within multidisciplinary ocean observations will provide data that are key to delivering policy information. Objectives across all the RIs are to facilitate ocean observation and build wider synergies. MINKE will investigate these synergies, then introduce metrology to the core of various EOV measurements. Currently the marine RIs cover laboratory and field operations, from the surface seafloor, coastal waters to deep sea, fixed ocean stations to ship and autonomous vehicle operations to ships of opportunity, and flux stations focusing on carbonate system variables. The nexus of these operations is the focal point for coordinated improvement of ocean observing methods. Measurement intercomparisons, traceability and uncertainty assessments should be at the core of the scientific observations. Specifically, MINKE will work with RIs and Metrology Institutes to improve the quality of dissolved oxygen, carbonate system, chlorophyll-fluorescence, ocean sound and current meter measurements, through access to metrology laboratories, Transnational Access and intercomparison studies across existing marine consortia and RIs. MINKE will also promote the development of absolute salinity observation, and improvements in marine litter measurements.
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- 2023
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19. 'A tumour registry initiative'
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Rajesh Nair, Bhavna Nayal, Saurabh Beedkar, and Girish Menon
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Astrocytoma ,Craniopharyngioma ,Epidemiology ,Medulloblastoma ,Paediatric brain tumour ,World Health Organization classification ,Surgery ,RD1-811 ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Background: Published literature on epidemiological profile of paediatric brain tumours in India is limited. Aim: To present a retrospective analysis of the histological spectrum of 158 paediatric age group central nervous system tumours operated in a single tertiary care hospital in Coastal South India between January 2015 and December 2021. Material and methods: Retrospective analysis of the data regarding frequencies of various primary brain tumours among 158 paediatric patients (
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- 2023
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20. Oncological and functional outcomes of organ‐preserving cystectomy versus standard radical cystectomy: A systematic review and meta‐analysis
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Reece Clay, Raghav Shaunak, Siddarth Raj, Alexander Light, Sachin Malde, Ramesh Thurairaja, Oussama El‐Hage, Prokar Dasgupta, Muhammed Shamim Khan, and Rajesh Nair
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continence ,cystectomy ,functional ,oncological ,organ sparing ,radical ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Introduction Radical cystectomy (RC) is historically considered the gold standard treatment for muscle invasive and high‐risk non‐muscle invasive bladder cancer. However, this technique leaves the majority of patients of both sexes with poor sexual and urinary function. Organ‐sparing cystectomy (OSC) techniques are emerging as an alternative to the standard procedure to preserve these functions, without compromising the oncological outcomes. We present a systematic review and meta‐analysis of the published literature. Methods MEDLINE, Embase and Web of Science were systematically searched for eligible studies on 6 April 2021. Primary outcomes studied were both oncological outcomes, specifically overall recurrence, and functional outcomes, specifically sexual function, and daytime and nighttime continence. Odds ratios (OR) with 95% confidence intervals (95% CI) were calculated. The PROSPERO registration reference number was CRD42018118897. Results From 13 894 identified abstracts, 19 studies (1886 male and 305 female patients) were eligible for inclusion in this review. These studies included patients who underwent either whole prostate, prostate capsule, seminal vesicle, nerve, uterus, ovary, vagina and fallopian tube sparing techniques. Four studies included only female patients. Thirteen studies reported oncological outcomes, and overall recurrence rate was similar between the two groups (five studies; OR 0.73; 95% CI 0.38–1.40, p = 0.34). Thirteen studies reported on male sexual function. In men, OSC had significantly greater odds of retaining potency (five studies; OR 9.05; 95% CI 5.07–16.16, p
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- 2023
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21. Left Ventricular Noncompaction Masquerading as Hypertrophic Nonobstructive Cardiomyopathy
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Praveen Rermal Veedu, Vellani Haridasan, Gopalan Rajesh Nair, and Gomathy Subramanian
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hypertrophic cardiomyopathy ,hypertrophic left ventricular noncompaction ,left ventricular noncompaction ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
A 61-year-old male with no significant medical history presented with dyspnea on exertion for the past 3 months. Clinical examination findings and electrocardiogram showed sinus rhythm and left ventricular hypertrophy. The chest X-ray and basic laboratory tests were within the normal limits. A transthoracic echocardiogram was performed which showed left ventricular wall thickening involving the anterior wall, lateral wall, septum, and inferior wall in the basal, mid, and apical segments. The left ventricular apex showed disproportionately increased thickness. There was no left ventricular outflow tract (LVOT) turbulence or obstruction. Left ventricular angiogram showed prominent trabeculations with deep intertrabecular recesses. LVOT obstruction was ruled out. The patient then underwent cardiac magnetic resonance imaging, which showed features suggestive of left ventricular noncompaction.
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- 2023
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22. Spontaneous intracerebral hemorrhage in the young: An institutional registry analysis
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Girish Menon, Aparna Macharla, Siddharth Srinivasan, Sonin Santosh, Ashwin Pai, Rajesh Nair, and Ajay Hegde
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hemorrhagic stroke ,outcome in ich ,young ich ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Background: Spontaneous intracerebral hemorrhage (SICH) accounts for about 10–15% of all strokes. Generally, it is a disease of the elderly; worldwide, the incidence of SICH in the young is showing an increasing trend, especially in India and the Asian continent. An attempt is also made to analyze the presence of factors, which may predict the risk of SICH among young hypertensives. Methods: A six-year retrospective review of patients aged below 50 years who presented with SICH was included in the study. Patients with bleeds secondary to an identifiable cause such as tumor, trauma, vascular malformations, and coagulopathy-induced bleeds were excluded from the study. The outcome was measured at 90 days using the modified ranking scale, and predictors of outcome (good outcome modified ranking score (mRS): 0–3; poor outcome mRS: 4–6) were analyzed. Results: SICH in the young accounted for 28.4% of all intracerebral hemorrhage (ICH) patients admitted during the study period (344/1210). The mean age of our male-dominant (78.5%) cohort was 42.9 ± 6.24 years, and the median Glasgow coma score (GCS) on presentation was 11 (IQR: 8–14). A prior history of hypertension (HTN) was obtained in 51.2% (176), and left ventricular hypertrophy (LVH) was documented in 237 (68.9%) patients. The basal ganglia was the most common location of the bleed (62.2%). At 90 days, 200 patients (58.1%) had good outcome and 144 (41.9%) had poor outcome with an overall mortality of 75 (21.8%). Independent predictors of poor outcome were poor GCS, larger volume, and high serum creatinine values. Conclusion: The incidence of SICH among the young accounts for nearly 30% of admitted ICH. Poor outcome and mortality are high with HTN being the single most important modifiable risk factor in the cohort.
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- 2023
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23. Machine Learning and ADHD Mental Health Detection - A Short Survey.
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Christian Nash, Rajesh Nair, and Syed Mohsen Naqvi
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- 2022
24. Action-Based ADHD Diagnosis in Video.
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Yichun Li, Yuxing Yang, Rajesh Nair, and Syed Mohsen Naqvi
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- 2023
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25. Active involvement of nursing staff in reporting and grading complication‐intervention events—Protocol and results of the CAMUS Pilot Nurse Delphi Study
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Christopher Soliman, Benjamin C. Thomas, Pasqualina Santaguida, Nathan Lawrentschuk, Evie Mertens, Gianluca Giannarini, Patrick Y. Wuethrich, Michael Wu, Muhammad S. Khan, Rajesh Nair, Ramesh Thurairaja, Benjamin Challacombe, Prokar Dasgupta, Sachin Malde, Niall M. Corcoran, Philippe E. Spiess, Philip Dundee, and Marc A. Furrer
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complication grading ,complication reporting ,consensus paper ,Delphi method ,urological surgery ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Objectives The aim of this study is to gain experienced nursing perspective on current and future complication reporting and grading in Urology, establish the CAMUS CCI and quality control the use of the Clavien‐Dindo Classification (CDC) in nursing staff. Subjects and Methods The 12‐part REDCap‐based Delphi survey was developed in conjunction with expert nurse, urologist and methodologist input. Certified local and international inpatient and outpatient nurses specialised in urology, perioperative nurses and urology‐specific advanced practice nurses/nurse practitioners will be included. A minimum sample size of 250 participants is targeted. The survey assesses participant demographics, nursing experience and opinion on complication reporting and the proposed CAMUS reporting recommendations; grading of intervention events using the existing CDC and the proposed CAMUS Classification; and rating various clinical scenarios. Consensus will be defined as ≥75% agreement. If consensus is not reached, subsequent Delphi rounds will be performed under Steering Committee guidance. Results Twenty participants completed the pilot survey. Median survey completion time was 58 min (IQR 40–67). The survey revealed that 85% of nursing participants believe nurses should be involved in future complication reporting and grading but currently have poor confidence and inadequate relevant background education. Overall, 100% of participants recognise the universal demand for reporting consensus and 75% hold a preference towards the CAMUS System. Limitations include variability in nursing experience, complexity of supplemental grades and survey duration. Conclusion The integration of experienced nursing opinion and participation in complication reporting and grading systems in a modern and evolving hospital infrastructure may facilitate the assimilation of otherwise overlooked safety data. Incorporation of focused teaching into routine nursing education will be essential to ensure quality control and stimulate awareness of complication‐related burden. This, in turn, has the potential to improve patient counselling and quality of care.
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- 2022
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26. Intra-Diverticular Bladder Tumours: How to Manage Rationally
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Mohammed Lotfi Amer, Hassan Mumtaz, Beth Russell, Jason Gan, Zahra Rehman, Rajesh Nair, Ramesh Thurairaja, and Muhammad Shamim Khan
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bladder tumours ,bladder cancer ,robot-assisted surgery ,bladder diverticula ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
ObjectiveTo report changing practice in the management of intra-diverticular bladder tumours. MethodsWe undertook a review of all intra-diverticular bladder tumours in our prospectively maintained institutional database. ResultsA total of 28 patients (male = 27, female = 1) with a median age of 71 years (IQR 61 to 76) were diagnosed with intra-diverticular bladder tumours (IDBT) between March 2013 and February 2021. Fourteen had visible and 3 had non-visible haematuria, while 11 patients had lower urinary tract symptoms. Median axial diameter of the diverticula was 46 mm (IQR 35 to 69), and median neck diameter was 9 mm (IQR 7 to 11). All patients had CT-urography and 5 patients also had an MRI. Surgical treatment consisted of diverticulectomy (n = 11), diverticulectomy and ipsilateral ureteric reimplantation (n = 11), radical cystectomy and ileal conduit (n = 4), or radical cystectomy and orthotopic bladder (n = 2). Eleven patients had open procedures, and 17 had robotic assisted surgery.Final pathological stages were T0 (n = 2), Ta (n = 5), T1 (n = 7), T3a (n = 8) and T3b (n = 6). Twenty-four patients had urothelial carcinoma (including one nested variant and 4 with squamous differentiation) and 2 had small cell carcinoma. Three patients had neoadjuvant systemic chemotherapy, 2 had intravesical bacillus Calmette-Guerin (BCG) with mitomycin, and one had BCG monotherapy preoperatively. Five patients had adjuvant systemic chemotherapy while 7 had adjuvant intravesical therapies. Mean follow-up period was 37.8 months (±25.3). Mean recurrence-free survival was 61.5% (CI 45.7 to 77.4) and mean overall survival 71.6 % (CI 57.4 to 85.8). Ten patients (37%) died of cancer. ConclusionManagement of intra-diverticular bladder tumours is evolving. Bladder-sparing approaches are gaining popularity. Robot-assisted diverticulectomy is preferable as it reduces the morbidity resulting from treatment
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- 2022
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27. Impact of the COVID‐19 pandemic on urological cancers: The surgical experience of two cancer hubs in London and Milan
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Maria J. Monroy‐Iglesias, Sonpreet Rai, Francesco A. Mistretta, Graham Roberts, Harvey Dickinson, Beth Russell, Charlotte Moss, Rita De Berardinis, Matteo Ferro, Gennaro Musi, Christian Brown, Rajesh Nair, Ramesh Thurairaja, Archana Fernando, Paul Cathcart, Azhar Khan, Prokar Dasgupta, Sachin Malde, Marios Hadijpavlou, Saoirse Dolly, Kate Haire, Marta Tagliabue, Ottavio deCobelli, Ben Challacombe, and Mieke Van Hemelrijck
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cancer ,COVID‐19 ,epidemiology ,surgery ,urology ,uro‐oncology ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Objective To report on the outcomes of urological cancer patients undergoing radical surgery between March–September 2020 (compared with 2019) in the European Institute of Oncology (IEO) in Milan and the South East London Cancer Alliance (SELCA). Materials and Methods Since March 2020, both institutions implemented a COVID‐19 minimal ‘green’ pathway, whereby patients were required to isolate for 14 days prior to admission and report a negative COVID‐19 polymerase chain reaction (PCR) test within 3 days of surgery. COVID‐19 positive patients had surgery deferred until a negative swab. Surgical outcomes assessed were: American Society of Anaesthesiologists (ASA) grade; surgery time; theatre time; intensive care unit (ICU) stay >24 h; pneumonia; length of stay (LOS); re‐admission. Postoperative COVID‐19 infection rates and associated mortality were also recorded. Results At IEO, uro‐oncological surgery increased by 4%, as compared with the same period in 2019 (n = 515 vs. 534). The main increase was observed for renal (16%, n = 98 vs. 114), bladder (24%, n = 45 vs. 56) and testicular (27%, n = 26 vs. 33). Patient demographics were all comparable between 2019 and 2020. Only one bladder cancer patient developed COVID‐19, reporting mild/moderate disease. There was no COVID‐19 associated mortality. In the SELCA cohort, uro‐oncological surgery declined by 23% (n = 403 vs. 312) compared with the previous year. The biggest decrease was seen for prostate (−42%, n = 156 vs. 91), penile (−100%, n = 4 vs. 0) and testicular cancers (−46%, n = 35 vs. 24). Various patient demographic characteristics were notably different when comparing 2020 versus 2019. This likely reflects the clinical decision of deferring COVID‐19 vulnerable patients. One patient developed COVID‐19, with no COVID‐19 related mortality. Conclusion The COVID‐19 minimal ‘green’ pathways that were put in place have shown to be safe for uro‐oncological patients requiring radical surgery. There were limited complications, almost no peri‐operative COVID‐19 infection and no COVID‐19‐related mortality in either cohort.
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- 2022
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28. The challenges in diagnosis and management of osteitis pubis: An algorithm based on current evidence
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Mohammed Lotfi Amer, Kawa Omar, Sachin Malde, Rajesh Nair, Ramesh Thurairaja, and Muhammad Shamim Khan
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chronic pelvic pain ,osteitis pubis ,osteomyelitis pubis ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Objective The objective of this study is to summarise the contemporary evidence regarding the prevalence, diagnosis, and management of osteitis pubis (OP) specially from urological point of view, while proposing an algorithm for the best management based on the current evidence. Methods We performed a literature search using the PubMed database for the term ‘osteitis pubis’ until December 2020. We assessed pre‐clinical and clinical studies regarding the aetiology, pathophysiology, and management of OP. Case reports and case series were evaluated by study quality and patient outcomes to determine a potential clinical management algorithm. Results Osteitis pubis is a chronic painful condition of the symphysis pubis joint and its surrounding structures. Still, there is a paucity of data outlining the management plan and the possible triggers. The aetiology seems to be multifactorial with different proposals trying to explain the pathophysiology and correlate the findings to the outcome. The diagnosis is usually based on high suspicion index and clinical experience. The infective variant of the disease is aggressive and requires strict and active management. Universal consensus is still lacking regarding a formal algorithm of management of the condition, especially due to multiple specialities involved in the decision‐making process. Conservative management remains the cornerstone; nevertheless, surgical interventions may be needed in special settings. Hence, a multi‐disciplinary approach is of pivotal value in fashioning the plan for each case. The prognosis is usually satisfactory; however, a longstanding debilitating disease form is not uncommon. Conclusion OP remains a rare condition with real challenges in its diagnosis. The current management is focused on conservative management; however, surgical intervention is still needed in some difficult scenarios. Continued research into the triggers of OP, multidisciplinary approach, and standardised clinical pathways can improve the quality of care for patients suffering from this condition.
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- 2022
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29. Rathke Cleft Cyst with Occulomotor Palsy: An Unusual Presentation
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Sandeep, Sreedhar, Rajesh, Nair, Anwar, CA Sadath, and Premkumar, Karuthillath
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- 2022
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30. Skeleton-based action analysis for ADHD diagnosis.
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Yichun Li, Yi Li, Rajesh Nair, and Syed Mohsen Naqvi
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- 2023
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31. Long‐term outcomes of outpatient laser ablation for recurrent non‐muscle invasive bladder cancer: A retrospective cohort study
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Sarika Grover, Siddarth Raj, Beth Russell, Elsie Mensah, Rajesh Nair, Ramesh Thurairaja, Muhammad Shamim Khan, Kay Thomas, and Sachin Malde
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bladder cancer ,laser ,outpatient ,progression ,recurrence ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Objectives The objective of this study is to determine the long‐term efficacy and safety of office‐based Holmium:YAG laser ablation for the treatment of recurrent non‐muscle‐invasive bladder cancer (NMIBC). Methods We retrospectively reviewed the medical records of all consecutive patients who underwent office‐based laser ablation for recurrent bladder cancer between 2008 and 2016. The following data were collected: original histology, date of original histology, date of laser ablation, number of repeat laser ablation procedures required, date of tumor recurrence or progression, number of general anesthesia procedures (transurethral resection or cystodiathermy) required after first laser ablation, and number and severity of complications. Kaplan–Meier survival curves were produced for recurrence‐free survival, progression‐free survival, and overall survival. Results A total of 97 patients, with an average age of 84 (62–98) years and an average Charlson Comorbidity Index of 6.9 (4–13), were included. The median follow‐up was 61 (2–150) months. Fifty‐five (56.7%) patients presented with tumor recurrence, and the median recurrence‐free survival time was 1.69 years (95% CI 1.20–2.25). Only 9 (9.3%) patients had evidence of tumor progression to a higher grade or stage, 8 (89%) of which initially had low‐grade tumors; however, no patient progressed to muscle‐invasive disease. The median progression‐free survival time was 5.70 years (95% CI 4.10–7.60), and the median overall survival time was 7.60 years (95% CI 4.90–8.70). No patient required emergency inpatient admission after laser ablation. Conclusion Office‐based Holmium:YAG laser ablation offers a safe and effective alternative method for treating low‐volume, low‐grade recurrent NMIBC, especially in elderly patients with significant co‐morbidity, while avoiding general anesthesia and inpatient admission.
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- 2022
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32. Spinal intramedullary tumors
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Girish Menon, Siddharth Srinivasan, Rajesh Nair, Ajay Hegde, and Suresh Nair
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astrocytoma ,ependymoma ,intramedullary ,spinal cord ,Medicine - Abstract
Intramedullary spinal cord tumors constitute an uncommon group of central nervous system neoplasms which pose considerable diagnostic and management challenges. Often low grade, these tumors have an insidious onset and slow progression, which makes early diagnosis a challenge. Advances in magnetic resonance imaging technology have greatly aided the diagnosis and preoperative planning of intramedullary tumors. Yet, radiological diagnosis can be difficult in the presence of several tumor mimics. The introduction and advancement of microsurgical techniques have made surgery the preferred treatment modality. Timing of intervention, however, is contentious. Eloquence of the surrounding tissue and the unforgiving nature of the spinal cord adds to the surgical challenge. Their treatment and prognosis is largely dependent on tumor histology and patient functionality. Well-demarcated tumors like ependymomas and hemangioblastomas can be resected completely with good outcome. Infiltrative tumors such as high-grade astrocytomas are best managed with biopsies or limited resections. Postoperative deficits can be crippling and the use of intraoperative neurophysiologic monitoring and other adjuncts is mandatory. Subtotal resection carry a high risk of recurrence and gross total resection carries a high risk of operative morbidity. With the availability of newer imaging modalities and intraoperative adjuncts, the earlier pessimistic conservative approach has been replaced by an aggressive surgical approach. This review provides an overview on the entire spectra of spinal intramedullary tumors with particular focus on management strategies.
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- 2022
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33. Review of acoustical and optical techniques to measure absolute salinity of seawater
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Marc Le Menn and Rajesh Nair
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salinity ,sound velocity ,refractometer ,interferometer ,density ,refractive index ,Science ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
The salinity of seawater is of fundamental importance in climate studies, and the measurement of the variable requires high accuracy and precision in order to be able to resolve its typically small variations in the oceans with depth and over long-time scales. This is currently only possible through the measurement of conductivity, which has led to the definition of a Practical Salinity scale. However, seawater is also composed of a large number of non-conducting substances that constitute salinity anomalies. Differences of the ratios of the constituents of sea salt from the Reference Composition may also change salinity anomalies. The establishment of formulae for calculating the thermodynamic properties of seawater has led to the definition of the concept of Absolute Salinity (SA), which includes such anomalies and is similar in approach to the notion of density. Although the routine in situ measurement of SA is still a huge challenge, numerous developments based on acoustic techniques, but above all, refractometry, interferometry or complex fiber optic assemblies, have been tested for this purpose. The development of monolithic components has also been initiated. The measurement of the refractive index by these techniques has the advantage of taking into account all the dissolved substances in seawater. This paper reviews the difficulties encountered in establishing theoretical or empirical relations between SA and the sound velocity, the refractive index or the density, and discusses the latest and most promising developments in SA measurement with a particular focus on in situ applications.
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- 2022
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34. The incidence and prevalence of upper tract urothelial carcinoma: a systematic review
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Ahmed Soualhi, Elke Rammant, Gincy George, Beth Russell, Deborah Enting, Rajesh Nair, Mieke Van Hemelrijck, and Cecilia Bosco
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Epidemiology ,Incidence ,Upper tract urothelial carcinoma ,Urological oncology ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Background Upper tract urothelial carcinoma (UTUC) is a rare urological cancer that is still an important public health concern in many areas around the world. Although UTUC has been linked to a number of risk factors, to our knowledge no systematic review has been published on the overall incidence and prevalence of de-novo UTUC. This review aimed to examine the global epidemiology of UTUC to provide clinicians and public health specialists a better understanding of UTUC. Methods A systematic search was conducted on MEDLINE, Embase, and the Web of Science using a detailed search strategy. Observational epidemiological studies describing the incidence and prevalence of de-novo UTUC in adults were included, and the Joanna Briggs Institute checklist was used for critical appraisal and data extraction of the studies selected. Results The systematic search identified 3506 papers, of which 59 papers were included for qualitative synthesis. The studies selected included data ranging from the years 1943 to 2018. A comprehensive qualitative synthesis of the data was performed. UTUC incidence generally varied according to age (higher with increasing age), sex (unclear), race (unclear), calendar time (increased, stable, or decreased according to region), geographical region (higher in Asian countries), occupation (higher in seamen and printers), and other population characteristics. Prevalence was only reported by one study, which showed UTUC to have the highest incidence of the rare urogenital cancers in Europe. Conclusion This systematic review highlights an increased incidence of UTUC in certain groups, including increasing age and certain occupations such as seamen. The incidence of UTUC also varies between certain geographical regions. The trend of UTUC incidence for sex, race, and calendar time is less clear due to a wide variety of metrics used by the studies identified. More studies are also required on the prevalence of UTUC to understand its disease burden. Trial registration This review was registered on PROSPERO (registration number CRD42019134255).
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- 2021
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35. Safety of 'hot' and 'cold' site admissions within a high‐volume urology department in the United Kingdom at the peak of the COVID‐19 pandemic
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Luke Stroman, Beth Russell, Pinky Kotecha, Anastasia Kantartzi, Luis Ribeiro, Bethany Jackson, Vugar Ismaylov, Adeoye Oluwakanyinsola Debo‐Aina, Findlay MacAskill, Francesca Kum, Meghana Kulkarni, Raveen Sandher, Anna Walsh, Ella Doerge, Katherine Guest, Yamini Kailash, Nick Simson, Cassandra McDonald, Elsie Mensah, Li June Tay, Ramandeep Chalokia, Sharon Clovis, Elizabeth Eversden, Jane Cossins, Jonah Rusere, Grace Zisengwe, Louisa Fleure, Leslie Cooper, Kathryn Chatterton, Amelia Barber, Catherine Roberts, Thomasia Azavedo, Jeffrey Ritualo, Harold Omana, Liza Mills, Lily Studd, Oussama El Hage, Rajesh Nair, Sachin Malde, Arun Sahai, Archana Fernando, Claire Taylor, Benjamin Challacombe, Ramesh Thurairaja, Rick Popert, Jonathon Olsburgh, Paul Cathcart, Christian Brown, Marios Hadjipavlou, Ella Di Benedetto, Matthew Bultitude, Jonathon Glass, Tet Yap, Rhana Zakri, Majed Shabbir, Susan Willis, Kay Thomas, Tim O’Brien, Muhammad Shamim Khan, and Prokar Dasgupta
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Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Objectives To determine the safety of urological admissions and procedures during the height of the COVID‐19 pandemic using “hot” and “cold” sites. The secondary objective is to determine risk factors of contracting COVID‐19 within our cohort. Patients and methods A retrospective cohort study of all consecutive patients admitted from March 1 to May 31, 2020 at a high‐volume tertiary urology department in London, United Kingdom. Elective surgery was carried out at a “cold” site requiring a negative COVID‐19 swab 72‐hours prior to admission and patients were required to self‐isolate for 14‐days preoperatively, while all acute admissions were admitted to the “hot” site. Complications related to COVID‐19 were presented as percentages. Risk factors for developing COVID‐19 infection were determined using multivariate logistic regression analysis. Results A total of 611 patients, 451 (73.8%) male and 160 (26.2%) female, with a median age of 57 (interquartile range 44‐70) were admitted under the urology team; 101 (16.5%) on the “cold” site and 510 (83.5%) on the “hot” site. Procedures were performed in 495 patients of which eight (1.6%) contracted COVID‐19 postoperatively with one (0.2%) postoperative mortality due to COVID‐19. Overall, COVID‐19 was detected in 20 (3.3%) patients with two (0.3%) deaths. Length of stay was associated with contracting COVID‐19 in our cohort (OR 1.25, 95% CI 1.13‐1.39). Conclusions Continuation of urological procedures using “hot” and “cold” sites throughout the COVID‐19 pandemic was safe practice, although the risk of COVID‐19 remained and is underlined by a postoperative mortality.
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- 2021
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36. Prevalence of posttransplant anemia in patients undergoing renal transplantation at a tertiary care center in Kerala - A prospective observational study
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Surabhi Talwar, Rajesh Nair, Sandeep Sreedharan, Anil Mathew, Zachariah Paul, and George Kurian
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anemia ,chronic kidney disease ,early anemia ,erythropoietin ,renal transplant ,Surgery ,RD1-811 - Abstract
Background: Studies on posttransplantation anemia (PTA) are scarce. There is a large variability in its prevalence (20%–70%). Research focuses on anemia in early (3–6 months) or late (>6 months) posttransplant period. Little is known about PTA within first 3 months. Aim: The aim of the study was to determine the prevalence and possible associated factors of immediate PTA in patients undergoing renal transplant. Materials and Methods: This was a prospective, observational, single-center study of 30 consecutive patients who underwent live renal allograft transplant. Follow-up period was 3-month posttransplant. Hemoglobin (Hb) was done at 1-week and 1, 2, and 3-month posttransplant. Erythropoietin (EPO) levels were recorded pre and posttransplant. Peripheral smear, lactate dehydrogenase, iron and ferritin levels, serum creatinine, days of hospital stay, rejections, infections, and immunosuppressive regime were recorded. Results: All patients were anemic within 1 week of transplantation and 40% had severe anemia. The prevalence of PTA at 3 months was 76.7%. PTA correlated with higher donor age, lower ferritin, Hb, and EPO levels in pretransplant period. However, even though EPO levels posttransplant were lower in patients with anemia, this correlation was not statistically significant. The lowest Hb correlated with Hb levels and dose of EPO-stimulating agents pretransplant. Conclusions: The prevalence of anemia is high in the immediate posttransplant period. High donor age, graft dysfunction, and iron stores before transplantation correlate with Hb levels at 3 months. It is prudent to maintain a better Hb in the pretransplant period to avoid PTA. Lower EPO levels before transplant may indicate immediate PTA. Correlation of EPO levels posttransplant with Hb needs further study.
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- 2021
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37. Cohort profile: King’s Health Partners bladder cancer biobank
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Pinky Kotecha, Charlotte L. Moss, Deborah Enting, Cheryl Gillett, Magdalene Joseph, Debra Josephs, Sarah Rudman, Simon Hughes, Fidelma Cahill, Harriet Wylie, Anna Haire, James Rosekilly, Muhammad Shamin Khan, Rajesh Nair, Ramesh Thurairaja, Sachin Malde, and Mieke Van Hemelrijck
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Bladder cancer ,Real world evidence ,Biobank ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Abstract Background Bladder cancer (BC) is the 9th most common cancer worldwide, but little progress has been made in improving patient outcomes over the last 25 years. The King’s Health Partners (KHP) BC biobank was established to study unanswered, clinically relevant BC research questions. Donors are recruited from the Urology or Oncology departments of Guy’s Hospital (UK) and can be approached for consent at any point during their treatment pathway. At present, patients with bladder cancer are approached to provide their consent to provide blood, urine and bladder tissue. They also give access to medical records and linkage of relevant clinical and pathological data across the course of their disease. Between June 2017 and June 2019, 531 out of 997 BC patients (53.3%) gave consent to donate samples and data to the Biobank. During this period, the Biobank collected fresh frozen tumour samples from 90/178 surgical procedures (of which 73 were biopsies) and had access to fixed, paraffin embedded samples from all patients who gave consent. Blood and urine samples have been collected from 38 patients, all of which were processed into component derivatives within 1 to 2 h of collection. This equates to 193 peripheral blood mononuclear cell vials; 238 plasma vials, 224 serum vials, 414 urine supernatant vials and 104 urine cell pellets. This biobank population is demographically and clinically representative of the KHP catchment area. Conclusion The King’s Health Partners BC Biobank has assembled a rich data and tissue repository which is clinically and demographically representative of the local South East London BC population, making it a valuable resource for future BC research.
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- 2020
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38. Genomic Landscape and Targeted Treatment of Gallbladder Cancer: Results of a First Ongoing Prospective Study
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Amol Patel, Dharmesh Soneji, Harinder Pal Singh, Manish Kumar, Arnab Bandyopadhyay, Ankit Mathur, Anuj Sharma, Gaurav Prakash Singh Gahlot, Shivashankara MS, Bhupesh Guleria, Rajesh Nair, Dipen Bhuva, and Suresh Pandalanghat
- Subjects
comprehensive genomic profiling ,erbb2/3 ,gallbladder cancer ,targeted therapy ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background Prognosis of gallbladder cancer (GBC) has not changed in the past 20 years. Comprehensive genomic profiling (CGP) carries potential to determine the actionability for multiple targets, including ERBB2, ERBB3, MET, ROSI, FGFR, and PIK3. This study evaluates the role of CGP and targeted therapies. Methods This is a multicenter, prospective, single-arm study. All consecutive patients of unresectable and/or metastatic GBC of age ≥18 years were enrolled. Hybrid capture-based CGP was performed by Foundation Medicine CDx. All patients received first-line chemotherapy with gemcitabine–cisplatin regimen. Patients with ERBB2/3 amplification received trastuzumab with capecitabine or nab-paclitaxel, and patients with MET amplification were treated with crizotinib. For ERBB2/3 mutations, lapatinib plus capecitabine regimen was used. Results Fifty patients were studied with a median age of 56 years (range 26–83) and a male-to-female ratio of 1:1.6. ERBB2 and ERBB3 amplification was seen in 9 (18%) and 2 (4%) patients, respectively. Four patients with ERBB2 amplification received trastuzumab and/or lapatinib, showed partial response, and maintained response beyond 12 weeks. One patient had mixed response, whereas two patients progressed on trastuzumab and lapatinib. Three patients with ERBB3 mutations showed response to lapatinib–capecitabine. One patient with MET amplification responded to crizotinib for 4 weeks. PIK3 mutations were present in 14% of cases and were independent of ERBB aberrations. Conclusion GBC is enriched in 28% of patients with ERBB2 and ERBB3 amplifications and/or mutations. Responses are seen with lapatinib in concurrent ERBB2 mutation and amplification. ERBB3 mutation showed response to lapatinib. MET and PIK3 are new findings in GBC, which may be targeted.
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- 2020
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39. Unmet needs in sexual health in bladder cancer patients: a systematic review of the evidence
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Agustina Bessa, Rebecca Martin, Christel Häggström, Deborah Enting, Suzanne Amery, Muhammad Shamim Khan, Fidelma Cahill, Harriet Wylie, Samantha Broadhead, Kathryn Chatterton, Sachin Malde, Rajesh Nair, Ramesh Thurairaja, Pardeep Kumar, Anna Haire, Saran Green, Margaret Northover, Karen Briggs, and Mieke Van Hemelrijck
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Bladder cancer ,Sexual health ,Radical cystectomy ,Health-related quality of life ,Mental wellbeing ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Background Bladder cancer (BC) treatment can have a detrimental effect on the sexual organs of patients and yet assessment of sexual health needs has been greatly overlooked for these patients compared to those who have undergone other cancer therapies. Methods This review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines in July 2019. Studies were identified by conducting searches for Medline (using the PubMed interface), the Cochrane Central Register of Controlled Trials (CENTRAL) and Ovid Gateway (Embase and Ovid) using a list of defined search terms. Results 15 out of 37 studies included men only, 10 studies women only and 11 both sexes. Most participants were aged 50 to 65 years. Most studies (n = 34) focused on muscle invasive BC and only three on non-muscle invasive BC. Measurements of sexual dysfunction, including erection, ejaculation, firmness and desire, were the most commonly used measurements to report sexual health in men. In women, lubrification/dryness, desire, orgasm and dyspareunia were the most commonly reported. Twenty-one studies evaluated sexual dysfunction based on validated questionnaires, two with a non-validated questionnaire and through interviewing participants. Conclusion While recognition of the importance of the inclusion of psychometric measurements to assess sexual health is growing, there is a lack of consistent measures to assess sexual health in BC. With the focus on QoL arising in cancer survivorship, further studies are needed to develop, standardize and implement use of sexual health questionnaires with appropriate psychometrics and social measures to evaluate QoL in BC patients. Trial registration “PROSPERO does not currently accept registrations for scoping reviews, literature reviews or mapping reviews. PROSPERO is therefore unable to accept your application or provide a registration number. This decision should not stop you from submitting your project for publication to a journal.”
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- 2020
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40. Lung cancer cells survive epidermal growth factor receptor tyrosine kinase inhibitor exposure through upregulation of cholesterol synthesis
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Mark C. Howell, Ryan Green, Roukiah Khalil, Elspeth Foran, Waise Quarni, Rajesh Nair, Stanley Stevens, Aleksandr Grinchuk, Andrew Hanna, Shyam Mohapatra, and Subhra Mohapatra
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cholesterol ,drug tolerance ,EGFR TKIs ,lung cancer ,Biology (General) ,QH301-705.5 - Abstract
Abstract Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) provide clinical benefits over chemotherapy for lung cancer patients with EGFR activating mutations. Despite initial clinical responses, long‐term efficacy is not possible because of acquired resistance to these therapies. We have developed EGFR TKI drug‐tolerant (DT) human lung cancer cell lines as a model for de novo resistance. Mass spectroscopic analysis revealed that the cytochrome P450 protein, CYP51A1 (Lanosterol 14α‐demethylase), which is directly involved with cholesterol synthesis, was significantly upregulated in the DT cells. Total cellular cholesterol, and more specifically, mitochondrial cholesterol, were found to be upregulated in DT cells. We then used the CYP51A1 inhibitor, ketoconazole, to downregulate cholesterol synthesis. In both parental and DT cells, ketoconazole and EGFR TKIs acted synergistically to induce apoptosis and overcome the development of EGFR tolerance. Lastly, this combination therapy was shown to shrink the growth of tumors in an in vivo mouse model of EGFR TKI resistance. Thus, our study demonstrates for the first time that ketoconazole treatment inhibits upregulation of mitochondrial cholesterol and thereby overcomes EGFR‐TKI resistance in lung cancer cells.
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- 2020
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41. Changes in Left Ventricular Mass and Cardiovascular Risk Factors after Kidney Transplantation
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Sandeep Sreedharan, Anil Mathew, Zachariah Paul, Navin Mathew, K R Sundaram, George Kurian, and Rajesh Nair
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Medicine - Abstract
Left ventricular hypertrophy (LVH), the most common structural cardiac complication, is the single most important cause for sudden cardiac death. There are no published data from India looking at the changes in left ventricular mass and cardiac dysfunction after kidney transplantation. We aimed to determine the changes in the left ventricular mass and other cardiovascular risk factors in kidney transplant recipients. This was a prospective observational study. All patients who underwent kidney transplantation at Amrita Institute of Medical Sciences and Research Centre, Kochi, Kerala, during the study period were included in the study. Measurement of clinical and biochemical parameters and echocardiography were done before, six months, and one year after transplantation. There was significant reduction in LV mass index (124.8 ± 39 vs. 102.2 ± 24.4 g/m2, P
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- 2020
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42. Compressive myelopathy – An unusual presentation of extramedullary hematopoiesis in a known patient of thalassemia major
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Rajesh Nair, Debish Anand, Girish Menon, K V Kiran Acharya, and B Ananthakrishna Shastri
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compressive myelopathy ,extramedullary hematopoiesis ,thalassemia ,Medicine - Abstract
Thalassemia presenting with compressive myelopathy secondary to extramedullary hematopoiesis (EMH) is rare. We report the rare case of spinal EMH with dorsal cord compression and myelopathy in a 28-year-old male with inadequately transfused beta thalassemia major who presented with paraparesis and acute sphincter disturbance.
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- 2020
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43. Perioperative management including dual cell salvage in a Jehovah's Witness patient undergoing major urological surgery
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Thomas G. Smith, Irina Anastasescu, James M. Wight, Anicee Danaee, Rajesh Nair, and Tim S. O'Brien
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caval tumor ,cell salvage ,Jehovah's Witness ,major hemorrhage ,renal tumor ,Medicine ,Medicine (General) ,R5-920 - Abstract
Abstract Complex surgery associated with major hemorrhage presents particular risks for Jehovah's Witnesses who do not accept transfusion of blood products. Intraoperative use of two cell saver machines simultaneously can maximize the yield of salvaged blood from both the operative field and from washed surgical swabs and can potentially be life‐saving.
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- 2021
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44. Mixing in the Tyrrhenian Interior Due to Thermohaline Staircases
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Sara Durante, Paolo Oliveri, Rajesh Nair, and Stefania Sparnocchia
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Tyrrhenian Sea ,thermohaline staircases ,salt fingers ,diapycnal mixing ,heat and salt fluxes ,Science ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
Thermohaline staircases are a well-known peculiar feature of the Tyrrhenian Sea. Generated by extensive double diffusion processes fueled by lateral intrusions, they are considered to be the most stable of all the staircases that have been detected in the world ocean, seeing their persistence of more than 40 years in the literature. Double diffusion leads to efficient vertical mixing, potentially playing a significant role in guiding the diapycnal mixing. The present study investigates this process of mixing in the case of the Tyrrhenian staircases by calculating the heat and salt fluxes in their gradient zones (interfaces) and the resulting net fluxes in adjacent layers using hydrological profiles collected from 2003 to 2016 at a station in the heart of the basin interior. The staircases favor downward fluxes of heat and salt, and the results of the calculations show that these are greater where temperature and salinity gradients are also high. This condition is more frequently encountered at thin and sharp interfaces, which sometimes appear as substructures of the thicker interfaces of the staircases. These substructures are hot spots where vertical fluxes are further accentuated. Due to the increasing salt and heat content of the Levantine Intermediate Water (LIW) during the observation period, a rise in the values of the fluxes was noted in the portion of the water column below it down to about 1800 m. The data furthermore show that internal gravity waves can modulate the structure of the staircases and very likely contribute to the mixing, too, but the sampling frequency of the time series is too large to permit a proper assessment of these processes. It is shown that, at least during the period of observation, the fluxes due to salt fingers do not reach the bottom layer but remain within the staircases.
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- 2021
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45. Designing a Pragmatic Intervention to Help Improve the Bladder Cancer Patient Experience
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Agustina Bessa, Cecilia Bosco, Fidelma Cahill, Beth Russell, Louis Fox, Charlotte Moss, Harriet Wylie, Anna Haire, Saran Green, Deborah Enting, Shamim Khan, Rajesh Nair, Ramesh Thurairaja, Kathryn Chatterton, Suzanne Amery, Nicola Peat, Sue Smith, Stuart Spear, Richard T Bryan, Leila Frodsham, Danny Burke, Jeannie Rigby, Lydia Makaroff, Phil Kelly, Melanie Costin, Christel Häggström, and Mieke Van Hemelrijck
- Subjects
Public aspects of medicine ,RA1-1270 - Abstract
Bladder cancer (BC) is the 10 th most common malignancy worldwide and the patient experience is found to be worse than that for patients diagnosed with other cancer types. We aimed to develop a wellbeing intervention to help improve the bladder cancer patient experience by ameliorating their health-related Quality of Life (HRQoL). We followed the 3 phases of the modified Medical Research Council (MRC) Framework for development of complex interventions. Following a systematic review of the literature on mental, sexual, and physical wellbeing, we conducted discussion groups with patients and healthcare professionals on these 3 themes. A consultation phase was then conducted with all relevant stakeholders to co-design a wellbeing intervention as part of a feasibility study. A pragmatic wellbeing feasibility trial was designed based on the hypothesis that a wellbeing program will increase patient awareness and attendance to services available to them and will better support their needs to improve HRQoL. The primary feasibility endpoints are patient attendance to the services offered and changes in HRQoL. The principle of patient centered care has strengthened the commitment to provide a holistic approach to support BC patients. In this study, we developed a wellbeing intervention in collaboration with patients and healthcare professionals to meet an unmet need in terms of the BC patient experience.
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- 2021
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46. The need for supportive mental wellbeing interventions in bladder cancer patients: A systematic review of the literature.
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Agustina Bessa, Elke Rammant, Deborah Enting, Richard T Bryan, Muhammad Shamim Khan, Sachin Malde, Rajesh Nair, Ramesh Thurairaja, Fidelma Cahill, Suzanne Amery, Sue Smith, Kamran Ahmed, Beth Russell, Charlotte Moss, Kathryn Chatterton, Christel Häggström, and Mieke Van Hemelrijck
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Medicine ,Science - Abstract
ObjectivesThere is an increased awareness of the effect of a bladder cancer diagnosis and its treatments on the mental wellbeing of patients. However, few studies have evaluated the efficacy, feasibility and acceptability of interventions to improve this mental wellbeing. This systematic review is the first phase of the Medical Research Council Framework for developing complex interventions and provides an overview of the published mental wellbeing interventions that could be used to design an intervention specific for BC patients.MethodsThis review was conducted in accordance with the PRISMA guidelines in January 2019 and studies were identified by conducting searches for Medline, the Cochrane Central Register of Controlled Trials and Ovid Gateway. All included studies met the following criteria: mental wellbeing interventions of adults with medically confirmed diagnosis of any type of urological cancer, reported outcomes for specific HRQoL domains including psychological factors. The quality of evidence was assessed according to Down and Black 27-item checklist.ResultsA total of 15,094 records were collected from the literature search and 10 studies matched the inclusion and exclusion criteria. Of these, nine interventions were for patients with prostate cancer and one for patients with kidney cancer. No studies were found for other urological cancers. Depression was the most commonly reported endpoint measured. Of the included studies with positive efficacy, three were group interventions and two were couple interventions. In the group interventions, all showed a reduction in depressive symptoms and in the couple interventions, there was a reduction in depressive symptoms and a favourable relationship cohesion. The couple interventions were the most feasible and acceptable, but further research was required for most of the studies.ConclusionWhile awareness of the importance of mental wellbeing in bladder cancer patients is growing, this systematic literature review highlights the gap of feasible and acceptable interventions for this patient population.
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- 2021
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47. Frailty assessment in older urological patients prior to surgery: a systematic review and narrative synthesis
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Andrea Haren, Rajni Lal, David Walker, Rajesh Nair, Judith Partridge, and Jugdeep Dhesi
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Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Background: Radical cystectomy (RC) and urinary diversion are the recommended treatment for patients with muscle invasive bladder cancer. This is complex surgery, associated with significant patient morbidity and mortality. Frailty has been shown to be an independent risk factor for adverse outcomes in several surgical populations. Preoperative assessment of frailty is advocated in current guidelines but is not yet standard clinical practice. Aims: This systematic review and narrative synthesis aims to examine whether patients undergoing RC are assessed for frailty, what tools are used, and whether an association is found between frailty and adverse outcomes in this population. Results: Nine studies, published within the last 4 years, describe the use of tools reporting to measure frailty in the RC population. All demonstrate increased risk of adverse postoperative outcomes with higher frailty levels. Only one study used a validated frailty tool. The majority of studies measure frailty using variations on a tool derived from a large database (ACS-NSQIP) effectively counting co-morbidities, rather than assessing the multidomain nature of the frailty syndrome. Conclusion: The recognition of frailty as an important consideration in the perioperative period is welcome. This systematic review and narrative synthesis demonstrates the need for collaboration in research and delivery of clinical care for older surgical patients. Such collaboration may provide clarity regarding terms such as frailty and multimorbidity, preventing the development of assessment tools inaccurately measuring these discreet syndromes interchangeably. More accurate assessment of patients in terms of frailty, multimorbidity and functional status may allow better modification and shared decision making leading to improved postoperative outcomes in older patients undergoing RC.
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- 2020
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48. Clinical Profile and Predictors of Outcome in Spontaneous Intracerebral Hemorrhage from a Tertiary Care Centre in South India
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Ajay Hegde, Girish Menon, Vinod Kumar, G. Lakshmi Prasad, Lakshman I. Kongwad, Rajesh Nair, and Raghavendra Nayak
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Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Background. This article attempts to evaluate the clinical profile and outcome determinants following hypertensive SICH in a South Indian population. The study represents the largest series of SICH reported from a single centre in India. Materials and Methods. Prospective data collection and analysis of patients with SICH admitted to our centre between 1st January 2015 and 31st December 2018. The variables analysed include: age, sex, comorbidities, Glasgow coma score (GCS) on admission, radiological features, treatment modality, and outcome at three months. Modified Rankin score (mRS) was used to assess the outcome at discharge and three months. Results. Our study group of 905 patients included 638 males and 267 females and the mean age at presentation was 58.10 ± 12.76 years. The study group included 523 patients (57.8%) previously diagnosed hypertensive, of whom 36.3% (n=190) were on irregular medication. The most frequent locations of hematoma were basal ganglia (478), thalamus (202), lobar (106), cerebellar (61), brainstem (31), and primary intraventricular haemorrhage (27). Secondary intraventricular extension was seen in 425 (47%) patients on admission. The mean volume of the clot on admission was 23.45 ± 19.79 ml, and clot progression was seen in only 46 (5.08%) cases. Surgical evacuation through craniotomy was done in 147 (16.8%) patients, and external ventricular drainage (EVD) was placed in 56 (6.2%) patients. Overall 3−month mortality was 30.1% (266 patients). On the last follow up a favorable outcome (mRS 0−3) was observed in 412 (45.53%) patients and a poor outcome (mRS 4−5) in 207 patients (22.87%). Independent predictors of mortality are Age >70 (p=30 ml (p=
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- 2020
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49. Improvement in glycaemic control in patients with type 2 diabetes with treatment using an interactive mobile application – A pilot study from India
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Arun Raghavan, Arun Nanditha, Krishnamoorthy Satheesh, Priscilla Susairaj, Ramachandran Vinitha, Dhruv Rajesh Nair, Santhosh Jeyaraj, Vajpayee Sharad, and Ambady Ramachandran
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Male ,Glycated Hemoglobin ,Nutrition and Dietetics ,Endocrinology, Diabetes and Metabolism ,India ,Pilot Projects ,Glycemic Control ,Mobile Applications ,Diabetes Mellitus, Type 2 ,Case-Control Studies ,Internal Medicine ,Humans ,Female ,Family Practice ,Retrospective Studies - Abstract
We studied the outcome of glycaemic management using Diahome, a smart-phone application compared to conventional treatment. Overall acceptability of the application among users was also assessed.This is a retrospective, case-control study of patients on virtual diabetes care using the Diahome app (n = 441) and those visited the hospital out-patient services (n = 446) between April and June 2021. Men and women aged 45-60 years with type 2 diabetes (T2DM) were selected.A total of 173 records with initial and follow-up visits were analyzed (app users n = 91, non-app users n = 82). Participants were aged 59 ± 12 years and were obese. The two groups were similar by age, gender distribution and duration of T2DM. Fasting blood glucose significantly reduced only among the app-users from a baseline level of 156 ± 70 mg/dl to 129 ± 40 mg/dl at follow-up (p 0.02). Reduction in HbA1c levels was observed in both groups (p 0.0001); percentage improvement was better among app (15.8%) than in non-app users (10.4%), p = 0.004. Triglycerides level were higher at both time points among app-users (p 0.05) as compared to the other group. More than 56% of the users rated the performance of Diahome app as excellent; virtual consultation was rated the highest (71.5%) among the Diahome services.Glycaemic management of diabetes using a dedicated mobile application was superior to in-person hospital visits. Its long-term effectiveness and cost savings need to be ascertained.
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- 2022
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50. Oncological and functional outcomes of organ‐preserving cystectomy versus standard radical cystectomy: A systematic review and meta‐analysis
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Reece Clay, Raghav Shaunak, Siddarth Raj, Alexander Light, Sachin Malde, Ramesh Thurairaja, Oussama El‐Hage, Prokar Dasgupta, Muhammed Shamim Khan, and Rajesh Nair
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General Medicine - Published
- 2022
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