Chetan Khatri
Imperial College London
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Featured researches published by Chetan Khatri.
PLOS ONE | 2015
Chetan Khatri; S.J. Chapman; James Glasbey; Michael Kelly; Dmitri Nepogodiev; Aneel Bhangu; J Edward Fitzgerald
Aims A substantial challenge facing multicentre audit and research projects is timely recruitment of collaborators and their study centres. Cost-effective strategies are required and fee-free social media has previously been identified as a potential conduit. We investigated and evaluated the effectiveness of a novel multi-format social media and Internet strategy for targeted recruitment to a national multicentre cohort study. Methods Interventions involved a new Twitter account, including weekly live question-and-answer sessions, a new Facebook group page, online YouTube presentations and an information page on a national association website. Link tracking analysis was undertaken using Google Analytics, which was then related to subsequent registration. Social influence was calculated using the proprietary Klout score. Results Internet traffic analysis identified a total of 1562 unique registration site views, of which 285 originated from social media (18.2%). Some 528 unique registrations were received, with 96 via social media platforms (18.2%). Traffic source analysis identified a separate national association webpage as resulting in the majority of registration page views (15.8%), followed by Facebook (11.9%), Twitter (4.8%) and YouTube (1.5%). A combination of publicity through Facebook, Twitter and the dedicated national association webpage contributed to the greatest rise in registration traffic and accounted for 312 (48%) of the total registrations within a 2-week period. A Twitter ‘social influence’ (Klout) score of 42/100 was obtained during this period. Conclusions Targeted social media substantially aided study dissemination and collaborator recruitment. It acted as an adjunct to traditional methods, accounting for 18.2% of collaborator registration in a short time period with no associated financial costs. We provide a practical model for designing future recruitment campaigns, and recommend Facebook, Twitter and targeted websites as the most effective adjuncts for maximising cost-effective study recruitment.
International Journal of Neuroscience | 2015
Sayinthen Vivekanantham; Savan Shah; Rizwan Dewji; Abbas Dewji; Chetan Khatri; Rele Ologunde
Neuroinflammation in Parkinsons disease [PD] is a process that occurs alongside the loss of dopaminergic neurons, and is associated with alterations to many cell types, most notably microglia. This review examines the key evidence contributing to our understanding of the role of inflammation-mediated degeneration of the dopaminergic (DA) nigrostriatal pathway in PD. It will consider the potential role inflammation plays in tissue repair within the brain, inflammation linked gene products that are associated with sporadic Parkinsonian phenotypes (alpha-synuclein, Parkin and Nurr 1), and developing anti-inflammatory drug treatments in PD. With growing evidence supporting the key role of neuroinflammation in PD pathogenesis, new molecular targets are being found that could potentially prevent or delay nigrostriatal DA neuron loss. Hence, this creates the opportunity for disease modifying treatment, to currently what is an incurable disease.
BMC Medical Education | 2015
S.J. Chapman; James Glasbey; Chetan Khatri; Michael Kelly; Dmitri Nepogodiev; Aneel Bhangu; J Edward Fitzgerald
BackgroundMedical students often struggle to engage in extra-curricular research and audit. The Student Audit and Research in Surgery (STARSurg) network is a novel student-led, national research collaborative. Student collaborators contribute data to national, clinical studies while gaining an understanding of audit and research methodology and ethical principles. This study aimed to evaluate the educational impact of participation.MethodsParticipation in the national, clinical project was supported with training interventions, including an academic training day, an online e-learning module, weekly discussion forums and YouTube® educational videos. A non-mandatory, online questionnaire assessed collaborators’ self-reported confidence in performing key academic skills and their perceptions of audit and research prior to and following participation.ResultsThe group completed its first national clinical study (“STARSurgUK”) with 273 student collaborators across 109 hospital centres. Ninety-seven paired pre- and post-study participation responses (35.5%) were received (male = 51.5%; median age = 23). Participation led to increased confidence in key academic domains including: communication with local research governance bodies (p < 0.001), approaching clinical staff to initiate local collaboration (p < 0.001), data collection in a clinical setting (p < 0.001) and presentation of scientific results (p < 0.013). Collaborators also reported an increased appreciation of research, audit and study design (p < 0.001).ConclusionsEngagement with the STARSurg network empowered students to participate in a national clinical study, which increased their confidence and appreciation of academic principles and skills. Encouraging active participation in collaborative, student-led, national studies offers a novel approach for delivering essential academic training.
American Journal of Surgery | 2016
T.M. Drake; Henry A. Claireaux; Chetan Khatri; Stephen Chapman
We read with interest ‘‘Johnston et al.’s’’ article regarding the use of an instant messaging service (WhatsApp) to improve communication within the surgical team. As demonstrated by the authors, application of an instant messaging platform in everyday clinical practice provides an efficient and economical alternative to the traditional pager system. Furthermore, it helps to break down previously held hierarchical barriers between junior and senior members of the team. We support this innovation. However, important governance issues remain, which future investigators and industry must consider before exploring this innovation further in the context of clinical practice. When a message is sent from a device via an instant messaging service, the data are sent to commercial servers via the Internet, where from recipient devices retrieve messages (Fig. 1). These servers may reside outside of the user’s home country, depending on the nature of service
BMJ Open | 2015
Dmitri Nepogodiev; Stephen Chapman; James Glasbey; Michael Kelly; Chetan Khatri; T.M. Drake; Chia Yew Kong; Harriet Mitchell; Ewen M. Harrison; J Edward Fitzgerald; Aneel Bhangu
Introduction Obesity is increasingly prevalent among patients undergoing surgery. Conflicting evidence exists regarding the impact of obesity on postoperative complications. This multicentre study aims to determine whether obesity is associated with increased postoperative complications following general surgery. Methods and analysis This prospective, multicentre cohort study will be performed utilising a collaborative methodology. Consecutive adults undergoing open or laparoscopic, elective or emergency, gastrointestinal, bariatric or hepatobiliary surgery will be included. Day case patients will be excluded. The primary end point will be the overall 30-day major complication rate (Clavien-Dindo grade III–V complications). Data will be collected to risk-adjust outcomes for potential confounding factors, such as preoperative cardiac risk. This study will be disseminated through structured medical student networks using established collaborative methodology. The study will be powered to detect a two-percentage point increase in the major postoperative complication rate in obese versus non-obese patients. Ethics and dissemination Following appropriate assessment, an exemption from full ethics committee review has been received, and the study will be registered as a clinical audit or service evaluation at each participating hospital. Dissemination will take place through national and local research collaborative networks.
BMJ Open | 2014
Aneel Bhangu; J Edward Fitzgerald; Stuart J Fergusson; Chetan Khatri; Hampus Holmer; Kjetil Søreide; Ewen M. Harrison
Introduction Emergency abdominal surgery outcomes represent an internationally important marker of healthcare quality and capacity. In this study, a novel approach to investigating global surgical outcomes is proposed, involving collaborative methodology using ‘snapshot’ clinical data collection over a 2-week period. The primary aim is to identify internationally relevant, modifiable surgical practices (in terms of modifiable process, equipment and clinical management) associated with best care for emergency abdominal surgery. Methods and analysis This is a multicentre, international, prospective cohort study. Any hospital in the world performing acute surgery can participate, and any patient undergoing emergency intraperitoneal surgery is eligible to enter the study. Centres will collect observational data on patients for a 14-day period during a 5-month window and required data points will be limited to ensure practicality for collaborators collecting data. The primary outcome measure is the 24 h perioperative mortality, with 30-day perioperative mortality as a secondary outcome measure. During registration, participants will undertake a survey of available resources and capacity based on the WHO Tool for Situational Analysis. Ethics and dissemination The study will not affect clinical care and has therefore been classified as an audit by the South East Scotland Research Ethics Service in Edinburgh, Scotland. Baseline outcome measurement in relation to emergency abdominal surgery has not yet been undertaken at an international level and will provide a useful indicator of surgical capacity and the modifiable factors that influence this. This novel methodological approach will facilitate delivery of a multicentre study at a global level, in addition to building international audit and research capacity. Trial registration number The study has been registered with ClinicalTrials.gov (Identifier: NCT02179112).
The Lancet Gastroenterology & Hepatology | 2017
Dmitri Nepogodiev; Stephen J. Chapman; Angelos G Kolias; J Edward Fitzgerald; Matthew Lee; Natalie S Blencowe; Aswin Chari; Aimun A. B. Jamjoom; Veeru Kasivisvanathan; Marta D'Auria; Gael R Nana; Tanvir Sian; Neil Sharma; Aneel Bhangu; James Haddow; Nicholas R.A. Symons; Sarantos Kaptanis; Pete Coe; Nicholas A Heywood; D. P. Harji; Fadlo Shaban; Gijs van Boxel; Jennifer Isherwood; George Murphy; Katie Young; George Ramsay; Nicholas T Ventham; Alex Ward; T.M. Drake; James Glasbey
Trainee-led networks have pioneered a novel collaborative approach to research in the UK. Established at a similar time to the UK National Institute for Health Research in 2006, collaborative groups have developed new pathways for doctors in full-time specialty training to design, disseminate, and deliver high-quality, multicentre research. In parallel, the National Institute for Health Research set up Clinical Research Networks (CRNs) to coordinate delivery of research across 30 clinical specialties and 15 English regional networks. Analogous networks have also been established by the devolved administrations in Scotland, Northen Ireland, and Wales. CRNs provide infrastructure to promote and coordinate research, including funding research support staff and providing research skills training. Using gastrointestinal surgery as an example, we sought to quantify trainee-led collaborative research network engagement and compare hospital participation with CRN studies. We only considered CRN and trainee-led collaborative studies involving ten or more hospitals with information available about participating sites. We searched the CRN portfolio for closed gastrointestinal and general surgery studies. We contacted trainee networks via a national mailing list to identify trainee studies. We derived denominators from the total number of hospitals offering emergency or major elective gastrointestinal surgery. Overall, 238 (99%) of 241 UK hospitals providing general surgery services participated in one or more trainee-led collaborative studies over the past decade compared with 191 (79%) of 241 for CRN studies. With the three trainee-led studies that had been adopted into the CRN portfolio excluded, participation in trainee-led research remained similar, at 236 (98%) of 241. Trainee groups delivered 15 studies overall: 12 observational studies and three randomised controlled trials (RCTs), coordinated by five regional and two national trainee networks (appendix). These numbers compared with three observational studies and eight RCTs coordinated by the CRN. We noted strong participation in trainee collaborative studies, even in regions with low CRN coverage, with the mean number of studies per hospital greater for collaboratives than for CRNs (appendix). Regions with a Royal College of Surgeons Surgical Trials Centre had greater participation in both trainee and CRN studies: the mean number of studies per hospital was 8·2 versus 6·0 in regions without. Trainee-led collaboratives have driven substantial additional research participation across the UK, on top of that achievable through CRNs alone, and have engaged additional gastrointestinal surgery units with little infrastructure or associated costs. This success is now being replicated in other specialties, with the British Neurosurgical Trainee Research Collaborative engaging 26 of 30 UK adult trauma-receiving neurosurgical units in the RESCUE-ASDH RCT. As the collaborative model is extended globally, it offers a powerful opportunity to promote a collaborative research culture and grow capacity with minimal investment. Synergy between trainee-led networks and CRNs could maximise delivery of high-quality research across the UK.
BMJ Open | 2014
Dimitri Nepogodiev; S.J. Chapman; James Glasbey; Michael Kelly; Chetan Khatri; J Edward Fitzgerald; Aneel Bhangu
Introduction Non-steroidal anti-inflammatory drugs (NSAIDs) are recommended as postoperative analgesia by the Enhanced Recovery After Surgery Society. Recent studies have raised concerns that NSAID administration following colorectal anastomosis may be associated with increased risk of anastomotic leak. This multicentre study aims to determine NSAIDs’ safety profile following gastrointestinal resection. Methods and analysis This prospective, multicentre cohort study will be performed over a 2-week period utilising a collaborative methodology. Consecutive adults undergoing open or laparoscopic, elective or emergency gastrointestinal resection will be included. The primary end point will be the 30-day morbidity, assessed using the Clavien-Dindo classification. This study will be disseminated through medical student networks, with an anticipated recruitment of at least 900 patients. The study will be powered to detect a 10% increase in complication rates with NSAID use. Ethics and dissemination Following the Research Ethics Committee Chairpersons review, a formal waiver was received. This study will be registered as a clinical audit or service evaluation at each participating hospital. Dissemination will take place through previously described novel research collaborative networks.
PLOS ONE | 2014
Chetan Khatri; Kapil Sugand; Sharika Anjum; Sayinthen Vivekanantham; Kash Akhtar; Chinmay Gupte
Introduction Previous studies have suggested that there is a positive correlation between the extent of video gaming and efficiency of surgical skill acquisition on laparoscopic and endovascular surgical simulators amongst trainees. However, the link between video gaming and orthopaedic trauma simulation remains unexamined, in particular dynamic hip screw (DHS) stimulation. Objective To assess effect of prior video gaming experience on virtual-reality (VR) haptic-enabled DHS simulator performance. Methods 38 medical students, naïve to VR surgical simulation, were recruited and stratified relative to their video gaming exposure. Group 1 (n = 19, video-gamers) were defined as those who play more than one hour per day in the last calendar year. Group 2 (n = 19, non-gamers) were defined as those who play video games less than one hour per calendar year. Both cohorts performed five attempts on completing a VR DHS procedure and repeated the task after a week. Metrics assessed included time taken for task, simulated flouroscopy time and screw position. Median and Bonett-Price 95% confidence intervals were calculated for seven real-time objective performance metrics. Data was confirmed as non-parametric by the Kolmogorov-Smirnov test. Analysis was performed using the Mann-Whitney U test for independent data whilst the Wilcoxon signed ranked test was used for paired data. A result was deemed significant when a two-tailed p-value was less than 0.05. Results All 38 subjects completed the study. The groups were not significantly different at baseline. After ten attempts, there was no difference between Group 1 and Group 2 in any of the metrics tested. These included time taken for task, simulated fluoroscopy time, number of retries, tip-apex distance, percentage cut-out and global score. Conclusion Contrary to previous literature findings, there was no correlation between video gaming experience and gaining competency on a VR DHS simulator.
Acta Orthopaedica | 2015
Kapil Sugand; Kash Akhtar; Chetan Khatri; Justin Cobb; Chinmay Gupte
Background and purpose — Virtual reality (VR) simulation offers a safe, controlled, and effective environment to complement training but requires extensive validation before it can be implemented within the curriculum. The main objective was to assess whether VR dynamic hip screw (DHS) simulation has a training effect to improve objective performance metrics. Patients and methods — 52 surgical trainees who were naïve to DHS procedures were randomized to 2 groups: the training group, which had 5 attempts, and the control group, which had only one attempt. After 1 week, both cohorts repeated the same number of attempts. Objective performance metrics included total procedural time (sec), fluoroscopy time (sec), number of radiographs (n), tip-apex distance (TAD; mm), attempts at guide-wire insertion (n), and probability of cut-out (%). Mean scores (with SD) and learning curves were calculated. Significance was set as p < 0.05. Results — The training group was 68% quicker than the control group, used 75% less fluoroscopy, took 66% fewer radiographs, had 82% less retries at guide-wire insertion, achieved a reduced TAD (by 41%), had lower probability of cut-out (by 85%), and obtained an increased global score (by 63%). All these results were statistically significant (p < 0.001). The participants agreed that the simulator provided a realistic learning environment, they stated that they had enjoyed using the simulator, and they recognized the need for the simulator in formal training. Interpretation — We found a significant training effect on the VR DHS simulator in improving objective performance metrics of naïve surgical trainees. Patient safety, an important priority, was not compromised.