63 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. 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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4. 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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5. 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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6. 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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7. 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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8. 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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9. 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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10. 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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11. 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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12. '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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13. 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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14. 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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15. 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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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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Artificial intelligence ,attention deficit hyperactivity disorder ,depression ,machine learning ,mental health ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
This paper explores the current machine learning based methods used to identify Attention Deficit Hyperactivity Disorder (ADHD) and depression in humans. Prevalence of mental ADHD and depression is increasing worldwide, partly due to the devastating impact of the COVID-19 pandemic for the latter but also because of the increasing demand placed on the mental health services. It is known that depression is the most common mental health condition, affecting an estimated 19.7% of people aged over 16. ADHD is also a very prevalent mental health condition, affecting approximately 7.2% of all age groups, with this being conceived as a conservative estimate. We explore the use of machine learning to identify ADHD and depression using different wearable and non-wearable sensors/modalities for training and testing. These modalities include functional Magnetic Resonance Imagery (fMRI), Electroencephalography (EEG), Medical Notes, Video and Speech. With mental health awareness on the rise, it is necessary to survey the existing literature on ADHD and depression for a machine learning based reliable Artificial Intelligence (AI). With access to in-person clinics limited and a paradigm shift to remote consultations, there is a need for AI-based technology to support the healthcare bodies, particularly in developed countries.
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- 2023
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17. 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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18. 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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19. 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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20. 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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21. 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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22. 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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23. 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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24. 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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25. 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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26. 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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27. 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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28. 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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29. 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
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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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30. 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
- Subjects
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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31. 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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32. 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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33. 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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34. 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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35. 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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36. 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
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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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37. 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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38. 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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39. 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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40. Androgen receptor targeted therapies in metastatic castration-resistant prostate cancer – The urologists' perspective
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Jo-Lynn Tan, Niranjan Sathianathen, Nicolas Geurts, Rajesh Nair, Declan G. Murphy, and Alastair D. Lamb
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Castration-resistant prostate cancer ,Prostate cancer ,Androgen receptor ,Androgen synthesis inhibitor ,Androgen deprivation therapy ,Novel androgen receptor antagonist ,Abiraterone ,Enzalutamide ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Androgen deprivation therapy (ADT), which involves the maximal suppression of circulating testosterone, underpins the treatment approach to metastatic hormone sensitive prostate cancer. Although initial responses are generally favourable, approximately half of cases progress to metastatic castrate resistant prostate cancer (mCRPC), rendering traditional hormonal therapies ineffective. mCRPC is defined by disease progression despite established ADT. New research has improved our understanding of the the molecular mechanisms behind metastatic castration-resistant prostate cancer (mCRPC). This has led to a renewed interest in the androgen receptor as a target for therapy, paving the way for the introduction of novel androgen therapies such as abiraterone acetate and enzalutamide. Recent trials on these treatments have demonstrated their benefit to improving overall survival in the setting of mCRPC. The resultant effect is a new, constantly changing, and complex treatment paradigm for treating clinicians, who are now required to know the mechanism of actions of new medications, side effect profiles, modes of administration, and preferred sequencing of various treatment options. Furthermore, treatments involving new androgen biosynthesis are currently being developed and tested. Therefore, in the context of a highly heterogenous disease with a continuously changing treatment landscape, management of mCRPC can be particularly challenging. The purpose of this review is to provide an overview of the literature on new androgen receptor targeted therapies, and discuss the changing treatment landscape specific to metastatic CRPC.
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- 2017
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41. First two bilateral hand transplantations in India (Part 4): Immediate post-operative care, immunosuppression protocol and monitoring
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Subramania Iyer, Mohit Sharma, P. Kishore, Jimmy Mathew, R. Janarthanan, Raghuveer Reddy, Abhijeet Wakure, Sundeep Vijayaraghavan, S. M. Chetan Mali, Visakh Varma, Ashish Chaudhari, Swapnil Dhake, Akshay Omkumar, George Kurian, Rajesh Nair, Anil Mathew, Zachariah Paul, Malini Eapen, and Lalitha Biswas
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composite tissue allotransplantation ,hand transplantation ,immunosuppression ,vascular composite allotransplantation ,Surgery ,RD1-811 - Abstract
Introduction: Being able to counter immune-mediated rejection has for decades been the single largest obstacle for the progress of vascular composite allotransplantation (VCA). The human immune system performs the key role of differentiating the ‘self’ from the ‘non-self’. This, although is quintessential to eliminate or resist infections, also resists the acceptance of an allograft which it promptly recognises as ‘non-self’. Materials and Methods: Pre-operative evaluation of the recipient evaluation included immunological assessment in the form of panel reactive antibodies (PRA), human leucocyte antigen (HLA) typing, donor-specific antibody detection assays (DSA) and complement-dependent cytotoxicity assays (CDC). Induction immunosuppression was by thymoglobulin and the maintenance by the standard triple-drug therapy. Results: Both the recipients were managed by the standard triple drug therapy and have had only minor episodes of rejections thus far which have been managed appropriately. Discussion: Induction immunosuppression was by thymoglobulin and the maintenance by the standard triple-drug therapy. Various groups have tried various other formulations and regimes as well. Conclusion: A comprehensive plan has to be drawn up for immunological screening, selection and the post-operative immunosuppressant usage. The ultimate goal of these immunosuppression modalities is to achieve a state of donor-specific tolerance.
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- 2017
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42. Trapped Fourth Ventricle in Recurrent Acoustic Schwannoma - A Rarity
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Vinod Kumar, Ajay Hegde, Rajesh Nair, and Girish Menon
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hydrocephalus ,ventriculoperitoneal shunt ,vestibular schwannoma ,slit ventricle ,Medicine ,Surgery ,RD1-811 - Abstract
Fourth ventricular dilatation is usually seen along with tri-ventriculomegaly in patients with communicating hydrocephalus. Isolated fourth ventricular dilatation is uncommon, especially as a sequelae following infective or post hemorrhagic communicating hydrocephalus. Communicating hydrocephalus is reported in vestibular schwannoma with an incidence of 3.7 to 23.5%, but 4th ventricular dilatation following its treatment has not been reported in the literature. We report a novel case of isolated fourth ventricular obstruction following surgery for recurrent vestibular schwannoma and ventriculoperitoneal shunt placement for communicating hydrocephalus. Management strategies range from endoscopic procedures to ventricular shunt placement. We describe the surgical technique for the placement of a fourth ventricular shunt with the use of a Y connector.
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- 2017
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43. Reconstruction of Scalp Avulsion in a Resource Restraint Rural Hospital
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Rudra Rajesh Nair, Shweta Shaji Mathew, Anna Mary Jose, Suhas Jajoo, and Samarth Shukla
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absence of microvascular surgery ,rotatory machine ,split skin graft ,traumatic disfigurement ,Medicine - Abstract
Occupational hazard is a major contributing factor to various deformities that workers who work with machines are subjected to, especially when the machines are rotating and are unprotected. Women workers with long hair not capped or tied appropriately may become a victim of moving or rotating machines, when the hair gets caught in the rotating part of the machine causing avulsion of the scalp. Scalp avulsion may lead to loss of life, disfigurement, require hospitalisation as well as psychological harm to the person. We present a case managed practically in a rural based hospital of a young girl, who had a complete scalp avulsion, and the challenges that were faced in a setting where microvascular surgery was not an option. It was treated with debridement and a simple split skin graft to cover the wound.
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- 2019
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44. IgA nephropathy presenting with pulmonary thromboembolism and renal artery infarct
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Madhav Venkatesan, Anil Mathew, Rajesh Nair, George Kurian, Seethalekshmy NV, Sandeep Sreedharan, and Zachariah Paul
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iga nephropathy ,nephrotic syndrome ,arterial thromboembolism ,proteinuria ,Pathology ,RB1-214 ,Internal medicine ,RC31-1245 ,Other systems of medicine ,RZ201-999 - Abstract
Background: Venous and arterial thromboembolism are frequently seen in nephrotic syndrome. They generally occur during periods of sustained proteinuria in patients who are not responding to treatment and more commonly seen in minimal change disease and membranous nephropathy. Case Presentation: A 28-year-old male presented to cardiology department of our hospital with worsening breathlessness for 1 week. We found pulmonary embolism and an infarct in the lower pole of the right kidney by CT pulmonary angiogram. He had no previous history or features of nephrotic syndrome. Urine analysis showed numerous red blood cells, 3+ proteinuria and granular casts. Urine protein creatinine ratio was 5.2 g/g of creatinine. Serum creatinine was 2.61 mg/dL. Renal biopsy was suggestive of IgA nephropathy and patient was started on steroids and warfarin and responded to treatment. Conclusions: Patients with nephrotic syndrome can rarely present initially with venous and arterial thromboembolism. Rarely even IgA nephropathy can present with such thromboembolic episodes.
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- 2019
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45. Improving hospital-based communication and decision-making about scope of treatment using a standard documentation tool
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Samuel Abuaf Kohen and Rajesh Nair
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Medicine (General) ,R5-920 - Abstract
Background The Vancouver Island Health Authority (VIHA) implemented a standard advance care planning (ACP) document called the medical order for scope of treatment (MOST) in February 2016 to improve end of life communication and documentation. This study aims to see if the MOST implementation improves inpatient ACP documentation when compared with the ‘do not resuscitate’ (DNR) order. Improvement is measured by: (1) proportion of inpatients with documented orders for life-sustaining treatment, (2) discordance between patient’s expressed wishes and chart documentation, (3) patient satisfaction and (4) days admitted to an acute care hospital within 90 days of study inclusion.Methods We performed a single-centre quality improvement study tracking the effects of MOST implementation. 329 consecutive patients were enrolled at a 215-bed community hospital located in Comox, British Columbia, Canada.Results The MOST integrated well into the process of care, significantly improving ACP documentation from 33% preimplementation to 100% over 8 months of implementation. MOST completion was associated with a significant decrease in discordance between patients’ wishes and documented goals of care. Patients with a MOST were significantly older and had a higher charlson comorbidity score than those without a MOST. Despite this, there was no difference in the number of days study patients were admitted to hospital within 90 days of study inclusion.Conclusions MOST implementation improves the frequency and quality of inpatient ACP documentation with no effect on acute care utilisation.
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- 2019
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46. Associations between childhood maltreatment and inflammatory markers
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Alish B. Palmos, Stuart Watson, Tom Hughes, Andreas Finkelmeyer, R. Hamish McAllister-Williams, Nicol Ferrier, Ian M. Anderson, Rajesh Nair, Allan H. Young, Rebecca Strawbridge, Anthony J. Cleare, Raymond Chung, Souci Frissa, Laura Goodwin, Matthew Hotopf, Stephani L. Hatch, Hong Wang, David A. Collier, Sandrine Thuret, Gerome Breen, and Timothy R. Powell
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Depressive disorders ,inflammation ,maltreatment ,Psychiatry ,RC435-571 - Abstract
BackgroundChildhood maltreatment is one of the strongest predictors of adulthood depression and alterations to circulating levels of inflammatory markers is one putative mechanism mediating risk or resilience.AimsTo determine the effects of childhood maltreatment on circulating levels of 41 inflammatory markers in healthy individuals and those with a major depressive disorder (MDD) diagnosis.MethodWe investigated the association of childhood maltreatment with levels of 41 inflammatory markers in two groups, 164 patients with MDD and 301 controls, using multiplex electrochemiluminescence methods applied to blood serum.ResultsChildhood maltreatment was not associated with altered inflammatory markers in either group after multiple testing correction. Body mass index (BMI) exerted strong effects on interleukin-6 and C-reactive protein levels in those with MDD.ConclusionsChildhood maltreatment did not exert effects on inflammatory marker levels in either the participants with MDD or the control group in our study. Our results instead highlight the more pertinent influence of BMI.Declaration of interestD.A.C. and H.W. work for Eli Lilly Inc. R.N. has received speaker fees from Sunovion, Jansen and Lundbeck. G.B. has received consultancy fees and funding from Eli Lilly. R.H.M.-W. has received consultancy fees or has a financial relationship with AstraZeneca, Bristol-Myers Squibb, Cyberonics, Eli Lilly, Ferrer, Janssen-Cilag, Lundbeck, MyTomorrows, Otsuka, Pfizer, Pulse, Roche, Servier, SPIMACO and Sunovian. I.M.A. has received consultancy fees or has a financial relationship with Alkermes, Lundbeck, Lundbeck/Otsuka, and Servier. S.W. has sat on an advisory board for Sunovion, Allergan and has received speaker fees from Astra Zeneca. A.H.Y. has received honoraria for speaking from Astra Zeneca, Lundbeck, Eli Lilly, Sunovion; honoraria for consulting from Allergan, Livanova and Lundbeck, Sunovion, Janssen; and research grant support from Janssen. A.J.C. has received honoraria for speaking from Astra Zeneca, honoraria for consulting with Allergan, Livanova and Lundbeck and research grant support from Lundbeck.
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- 2019
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47. Influence of Admission Blood Glucose in Predicting Outcome in Patients With Spontaneous Intracerebral Hematoma
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Lakshman I. Kongwad, Ajay Hegde, Girish Menon, and Rajesh Nair
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intracerebral hemorrhage ,mRS ,stroke ,admission blood glucose ,stroke outcome ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Background and Aims: Hyperglycemia or elevated blood glucose levels have been associated with poor outcomes in patients with ischemic stroke yet control of hyperglycemia has not resulted in good outcomes. High admission blood glucose (ABG) values have been mitigated by other poor prognosticators like large hematoma volume, intraventricular extension (IVE) of hematoma and poor GCS. The aim of this study was to evaluate the effects of blood glucose levels at admission, on mortality and functional outcomes at discharge and 3 months follow up.Methods: This was a retrospective observational study conducted at a tertiary care. Patients with spontaneous SICH were enrolled from a prospective SICH register maintained at our hospital. Blood glucose values were recorded on admission. Patients with traumatic hematomas, vascular malformations, aneurysms, and coagulation abnormalities were excluded from our study.Results: A total of 510 patients were included in the study. We dichotomised our cohort into two groups, group A with ABG>160 mg/dl and group B with ABG
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- 2018
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48. Randomised controlled trial of ketamine augmentation of electroconvulsive therapy to improve neuropsychological and clinical outcomes in depression (Ketamine-ECT study)
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Ian M Anderson, Andrew Blamire, Tim Branton, Sabrina Brigadoi, Ross Clark, Darragh Downey, Graham Dunn, Andrew Easton, Rebecca Elliott, Clare Elwell, Katherine Hayden, Fiona Holland, Salman Karim, Jo Lowe, Colleen Loo, Rajesh Nair, Timothy Oakley, Antony Prakash, Parveen K Sharma, Stephen R Williams, and R Hamish McAllister-Williams
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electroconvulsive therapy ,ketamine ,depression ,neuropsychological tests ,functional near-infrared spectroscopy ,patient survey ,randomised controlled trial ,Medicine - Abstract
Background: Electroconvulsive therapy (ECT) is the most effective acute treatment for severe depression, but there are concerns about its adverse cognitive effects. ECT may impair cognition through stimulation of glutamate receptors, and preliminary evidence has suggested that ketamine, a glutamate antagonist, may alleviate these effects. Ketamine has been shown to have a rapid, but temporary, antidepressant effect after a single infusion. Objective: To determine the efficacy and safety of adjunctive low-dose ketamine to reduce cognitive impairments caused by ECT and, secondarily, to improve symptomatic outcome. Design: Multicentre, two-arm, parallel-group, patient-randomised, placebo-controlled superiority trial. Setting: Eleven ECT suites based in seven NHS trusts in the north of England. Participants: Severely depressed hospitalised patients or outpatients who received ECT as part of their usual clinical care. Interventions: Patients were randomised to ketamine (0.5 mg/kg) or saline as an adjunct to their anaesthetic for their ECT course in a 1 : 1 ratio. Main outcome measures: The primary outcome was delayed verbal recall on the Hopkins Verbal Learning Task – Revised (HVLT-R) after four ECT treatments (mid-ECT), analysed using a Gaussian repeated measures model. Secondary outcomes included autobiographical, working and visual memory and verbal fluency, symptoms and quality of life; assessments occurred at mid-ECT, end of treatment and 1 and 4 months after the last ECT. Neuropsychological function was compared with that of healthy control subjects and a functional near-infrared spectroscopy (fNIRS) substudy investigated prefrontal cortex function. A patient survey of study participation was carried out. Results: Seventy-nine severely depressed patients were randomised to ketamine (0.5 mg/kg) or saline as an adjunct to their anaesthetic for their ECT course; the modified intention-to-treat sample included 70 patients. Compared with saline, adjunctive ketamine had no significant effect on HVLT-R delayed recall [treatment effect difference –0.43, 95% confidence interval (CI) –1.73 to 0.87], other neuropsychological outcomes, improvement in depression [difference in Montgomery–Åsberg Depression Rating Scale (MADRS) score of 0.44, 95% CI –1.03 to 1.91], the number of ECT treatments to remission (MADRS score of ≤ 10: 0.83, 95% CI –3.2 to 4.9), anxiety symptoms or quality of life. By the end of ECT treatment, 37% (saline 35%, ketamine 39%) of patients had remitted. Tolerability was similar in the two treatment arms; two patients had isolated transient psychological effects attributable to ketamine. Preliminary fNIRS analysis found that patients had blunted prefrontal cortical haemodynamic responses compared with control subjects during a verbal fluency task at baseline; this was further diminished at mid-ECT without modulation by ketamine. Greater haemodynamic responsivity to ECT appeared to be associated with a better clinical response. The majority of patients surveyed reported a positive experience of study participation. Conclusions: The results of the study do not support the use of adjunctive ketamine in routine ECT treatment in the NHS. Although no evidence of benefit was found for ketamine, moderate benefits or harms cannot be excluded, as recruitment was
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- 2017
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49. Rapid assessment of facilitators and barriers related to the acceptance, challenges and community perception of daily regimen for treating tuberculosis in India
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Himanshu Negandhi, Ritika Tiwari, Anjali Sharma, Rajesh Nair, Sanjay Zodpey, Ramesh Reddy Allam, and Ganesh Oruganti
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tuberculosis ,rntcp ,dots strategy ,daily regimen ,Public aspects of medicine ,RA1-1270 - Abstract
Introduction: The Revised National Tuberculosis Control Program (RNTCP) is the largest tuberculosis (TB) control program in the world based on Directly Observed Treatment Short-Course (DOTS) strategy. Globally, most countries have been using a daily regimen and in India a shift towards a daily regimen for TB treatment has already begun. The daily strategy is known to improve program coverage along with compliance. Such strategic shifts have both management and operational implications. We undertook a rapid assessment to understand the facilitators and barriers in adopting the daily regimen for TB treatment in three Indian states. Methods: In-depth interviews were planned across six districts of three purposively selected states of Maharashtra, Bihar and Sikkim, among health system personnel at various levels to identify their perspectives on adoption of a daily regimen for TB. These districts were sampled on the basis of TB notification rates. Thematic analysis of the qualitative data was undertaken. Results: 62 respondents were interviewed from these 6 districts. During the analysis, it was observed that an easily accessible, patient-centred and personalized outreach is an enabling factor for adherence to treatment. Lack of transportation facilities, out-of-pocket expenses and loss of wages for accessing DOTS at institutions are major identified barriers for treatment adherence at individual level. At program level, lack of trained service providers, poor administration of treatment protocols and inadequate supervision by health care providers and program managers are key factors that influence program outcomes. Conclusion: A major observation that emerged from the interviews is that the key to achieve a relapse-free cure is ensuring that a patient receives all doses of the prescribed treatment regimen. However, switching to a daily regimen makes adherence difficult and thus new strategies are needed for its implementation at patient and health provider levels. Most stakeholders appreciate the reasons for switching to a daily regimen. The stakeholders recognised the efforts of the Ministry of Health & Family Welfare (MoHFW) in spearheading the program. Strategies like the 99 DOTS call-centre approach may also further ensure treatment adherence.
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- 2017
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50. Updates of prostate cancer staging: Prostate-specific membrane antigen
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Niranjan J Sathianathen, Alastair Lamb, Rajesh Nair, Nicolas Geurts, Catherine Mitchell, Nathan L Lawrentschuk, Daniel A Moon, and Declan G Murphy
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Local neoplasm recurrence ,Positron-emission tomography ,Prostatic neoplasms ,X-ray computed tomography ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
The ability to accurately stage prostate cancer in both the primary and secondary staging setting can have a major impact on management. Until recently radiological staging has relied on computer tomography, magnetic resonance imaging, and nuclear bone scans to evaluate the extent of disease. However, the utility of these imaging technologies has been limited by their sensitivity and specificity especially in detecting early recurrence. Functional imaging using positron-emission tomography with a radiolabeled ligand targeted to prostate-specific membrane antigen has transformed the prostate cancer imaging landscape. Initial results suggest that it is a substantial improvement over conventional imaging in the setting of recurrence following primary therapy by having a superior ability to detect disease and to do so at an earlier stage. Additionally, it appears that the benefits seen in the secondary staging setting may also exist in the primary staging setting.
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- 2016
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