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Lawrence M, Celestino Junior FT, Matozinho HHS, Govan L, Booth J. Yoga for stroke rehabilitation. Hippokratia 2015. [DOI: 10.1002/14651858.cd011483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Tonidandel A, Booth J, D’Angelo R, Harris L, Tonidandel S. Anesthetic and obstetric outcomes in morbidly obese parturients: a 20-year follow-up retrospective cohort study. Int J Obstet Anesth 2014; 23:357-64. [DOI: 10.1016/j.ijoa.2014.05.004] [Citation(s) in RCA: 101] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 05/12/2014] [Accepted: 05/19/2014] [Indexed: 11/16/2022]
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Booth J, Colvill E, Eade T, Kneebone A, O'Brien R, Keall P. First Clinical Implementation of Electromagnetic Transponder-Guided MLC Tracking. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Able C, Baydush A, Nguyen C, Gersh J, Ndlovu A, Booth J, Perez M, Sintay B, Munley M. A Model for Pre-emptive Maintenance of Medical Linear Accelerators: Predictive Maintenance. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Booth J, Lacy-Colson J, Norwood M, Murray C. 985: A novel sampling device for collecting mucocellular material from the unprepared rectum. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50874-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Able CM, Baydush AH, Nguyen C, Gersh J, Ndlovu A, Rebo I, Booth J, Perez M, Sintay B, Munley MT. SU-E-T-144: Effective Analysis of VMAT QA Generated Trajectory Log Files for Medical Accelerator Predictive Maintenance. Med Phys 2014. [DOI: 10.1118/1.4888474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ge Y, OBrien R, Shieh C, Booth J, Keall P. WE-G-BRF-01: Adaptation to Intrafraction Tumor Deformation During Intensity-Modulated Radiotherapy: First Proof-Of-Principle Demonstration. Med Phys 2014. [DOI: 10.1118/1.4889494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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83
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Huang C, Nasehi Tehrani J, Booth J, Keall P. SU-D-18A-07: Towards 6-Degree-Of-Freedom Real-Time Motion Management in Cancer Radiotherapy. Med Phys 2014. [DOI: 10.1118/1.4887908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Able CM, Baydush AH, Nguyen C, Gersh J, Ndlovu A, Rebo I, Booth J, Perez M, Sintay B, Munley MT. SU-C-BRD-03: Analysis of Accelerator Generated Text Logs for Preemptive Maintenance. Med Phys 2014. [DOI: 10.1118/1.4889716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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85
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Lawrence M, Booth J, Mercer S, Crawford E. A systematic review of the benefits of mindfulness-based interventions following transient ischemic attack and stroke. Int J Stroke 2014; 8:465-74. [PMID: 23879751 DOI: 10.1111/ijs.12135] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Recent epidemiological studies have demonstrated an association between perceived psychological stress and ischemic stroke. A feature of stroke is recurrence; 30-40% within five-years following first transient ischemic attack/stroke. Equipping patients with skills and coping strategies to help reduce or manage perceived psychological stress may represent an important secondary prevention intervention. Mindfulness-based interventions are structured, group-based self-management programmes with potential to help people with long-term conditions cope better with physical, psychological, or emotional distress. Review evidence suggests significant benefits across a range of physical and mental health problems. However, we could find no evidence synthesis relating specifically to the benefits of mindfulness-based interventions following transient ischemic attack/stroke. AIM The review aims to evaluate the benefits of mindfulness-based interventions following transient ischemic attack/stroke. METHODS Six major databases were searched using subject headings and key words. Papers were screened using review-specific criteria. Critical appraisal and data extraction were conducted independently by two reviewers. Statistical meta-analysis was not possible; therefore findings are presented in narrative form. RESULTS Four studies involving 160 participants were reviewed. Three papers reported mindfulness-based interventions delivered to groups; one paper reported a mindfulness-based intervention which was delivered one to one. The results demonstrate a positive trend in favor of the benefits of mindfulness-based interventions across a range of psychological, physiological, and psychosocial outcomes including anxiety, depression, mental fatigue, blood pressure, perceived health, and quality of life. No evidence of harm was found. CONCLUSION Following transient ischemic attack/stroke, people may derive a range of benefits from mindfulness-based interventions; however, further methodologically robust trials are required.
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Burrows NJ, Booth J, Sturnieks DL, Barry BK. Acute resistance exercise and pressure pain sensitivity in knee osteoarthritis: a randomised crossover trial. Osteoarthritis Cartilage 2014; 22:407-14. [PMID: 24418672 DOI: 10.1016/j.joca.2013.12.023] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 11/28/2013] [Accepted: 12/21/2013] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To determine whether a single bout of resistance exercise produces an analgesic effect in individuals with knee osteoarthritis (OA). DESIGN Eleven participants with knee OA (65.9 ± 10.4 yrs), and 11 old (61.3 ± 8.2 yrs) and 11 young (25.0 ± 4.9 yrs) healthy adults performed separate bouts of upper and lower body resistance exercise. Baseline and post-exercise pressure pain thresholds were measured at eight sites across the body and pressure pain tolerance was measured at the knee. RESULTS Pressure pain thresholds increased following exercise for all three groups, indicating reduced pain sensitivity. For the young and old healthy groups this exercise-induced analgesia (EIA) occurred following upper or lower body resistance exercise. In contrast, only upper body exercise significantly raised pain thresholds in the knee OA group, with variable non-significant effects following lower body exercise. Pressure pain tolerance was unchanged in all groups following either upper or lower body exercise. CONCLUSION An acute bout of upper or lower body exercise evoked a systemic decrease in pain sensitivity in healthy individuals irrespective of age. The decreased pain sensitivity following resistance exercise can be attributed to changes in pain thresholds, not pain tolerance. While individuals with knee OA experienced EIA, a systemic decrease in pain sensitivity was only evident following upper body exercise.
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Thomas LH, French B, Burton CR, Sutton C, Forshaw D, Dickinson H, Leathley MJ, Britt D, Roe B, Cheater FM, Booth J, Watkins CL. Evaluating a systematic voiding programme for patients with urinary incontinence after stroke in secondary care using soft systems analysis and Normalisation Process Theory: findings from the ICONS case study phase. Int J Nurs Stud 2014; 51:1308-20. [PMID: 24656435 DOI: 10.1016/j.ijnurstu.2014.02.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 02/06/2014] [Accepted: 02/09/2014] [Indexed: 11/27/2022]
Abstract
BACKGROUND Urinary incontinence (UI) affects between 40 and 60% of people in hospital after stroke, but is often poorly managed in stroke units. OBJECTIVES To inform an exploratory trial by three methods: identifying the organisational context for embedding the SVP; exploring health professionals' views around embedding the SVP and measuring presence/absence of UI and frequency of UI episodes at baseline and six weeks post-stroke. DESIGN A mixed methods single case study included analysis of organisational context using interviews with clinical leaders analysed with soft systems methodology, a process evaluation using interviews with staff delivering the intervention and analysed with Normalisation Process Theory, and outcome evaluation using data from patients receiving the SVP and analysed using descriptive statistics. SETTING An 18 bed acute stroke unit in a large Foundation Trust (a 'not for profit' privately controlled entity not accountable to the UK Department of Health) serving a population of 370,000. PARTICIPANTS Health professionals and clinical leaders with a role in either delivering the SVP or linking with it in any capacity were recruited following informed consent. Patients were recruited meeting the following inclusion criteria: aged 18 or over with a diagnosis of stroke; urinary incontinence (UI) as defined by the International Continence Society; conscious; medically stable as judged by the clinical team and with incontinence classified as stress, urge, mixed or 'functional'. All patients admitted to the unit during the intervention period were screened for eligibility; informed consent to collect baseline and outcome data was sought from all eligible patients. RESULTS Organisational context: 18 health professionals took part in four group interviews. Findings suggest an environment not conducive to therapeutic continence management and a focus on containment of UI. Embedding the SVP into practice: 21 nursing staff took part in six group interviews. Initial confusion gave way to embedding of processes facilitated by new routines and procedures. Patient outcome: 43 patients were recruited; 28 of these commenced the SVP. Of these, 6/28 (21%) were continent at six weeks post-stroke or discharge. CONCLUSION It was possible to embed the SVP into practice despite an organisational context not conducive to therapeutic continence care. Recommendations are made for introducing the SVP in a trial context.
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Simpson R, Booth J, Lawrence M, Byrne S, Mair F, Mercer S. Mindfulness based interventions in multiple sclerosis--a systematic review. BMC Neurol 2014; 14:15. [PMID: 24438384 PMCID: PMC3900731 DOI: 10.1186/1471-2377-14-15] [Citation(s) in RCA: 128] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 01/14/2014] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Multiple sclerosis (MS) is a stressful condition; depression, anxiety, pain and fatigue are all common problems. Mindfulness based interventions (MBIs) mitigate stress and prevent relapse in depression and are increasingly being used in healthcare. However, there are currently no systematic reviews of MBIs in people with MS. This review aims to evaluate the effectiveness of MBIs in people with MS. METHODS Systematic searches were carried out in seven major databases, using both subject headings and key words. Papers were screened, data extracted, quality appraised, and analysed by two reviewers independently, using predefined criteria. Study quality was assessed using the Cochrane Collaboration risk of bias tool. Perceived stress was the primary outcome. Secondary outcomes include mental health, physical health, quality of life, and health service utilisation. Statistical meta-analysis was not possible. Disagreements were adjudicated by a third party reviewer. RESULTS Three studies (n = 183 participants) were included in the final analysis. The studies were undertaken in Wales (n = 16, randomised controlled trial - (RCT)), Switzerland (n = 150, RCT), and the United States (n = 17, controlled trial). 146 (80%) participants were female; mean age (SD) was 48.6 (9.4) years. Relapsing remitting MS was the main diagnostic category (n = 123, 67%); 43 (26%) had secondary progressive disease; and the remainder were unspecified. MBIs lasted 6-8 weeks; attrition rates were variable (5-43%); all employed pre- post- measures; two had longer follow up; one at 3, and one at 6 months. Socio-economic status of participants was not made explicit; health service utilisation and costs were not reported. No study reported on perceived stress. All studies reported quality of life (QOL), mental health (anxiety and depression), physical (fatigue, standing balance, pain), and psychosocial measures. Statistically significant beneficial effects relating to QOL, mental health, and selected physical health measures were sustained at 3- and 6- month follow up. CONCLUSION From the limited data available, MBIs may benefit some MS patients in terms of QOL, mental health, and some physical health measures. Further studies are needed to clarify how MBIs might best serve the MS population.
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Ng JA, Booth J, Poulsen P, Kuncic Z, Keall PJ. Estimation of effective imaging dose for kilovoltage intratreatment monitoring of the prostate position during cancer radiotherapy. Phys Med Biol 2013; 58:5983-96. [PMID: 23938470 PMCID: PMC5357434 DOI: 10.1088/0031-9155/58/17/5983] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Kilovoltage intratreatment monitoring (KIM) is a novel real-time localization modality where the tumor position is continuously measured during intensity modulated radiation therapy (IMRT) or intensity modulated arc therapy (IMAT) by a kilovoltage (kV) x-ray imager. Adding kV imaging during therapy adds radiation dose. The additional effective dose is quantified for prostate radiotherapy and compared to dose from other localization modalities. The software PCXMC 2.0 was used to calculate the effective dose delivered to a phantom as a function of imager angle and field size for a Varian On-Board Imager. The average angular effective dose was calculated for a field size of 6 cm × 6 cm. The average angular effective dose was used in calculations for different treatment scenarios. Treatment scenarios considered were treatment type and fractionation. For all treatment scenarios, (i.e. conventionally fractionated and stereotactic body radiotherapy (SBRT), IMRT and IMAT), the total KIM dose at 1 Hz ranged from 2-10 mSv. This imaging dose is less than the Navotek radioactive implant dose (64 mSv) and a standard SBRT cone beam computed tomography pretreatment scan dose (22 mSv) over an entire treatment regime. KIM delivers an acceptably low effective dose for daily use as a real-time image-guidance method for prostate radiotherapy.
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Colvill E, Ng J, O' Brien R, Poulsen P, Booth J, Keall P. TU-E-141-04: Dose Reconstruction for DMLC Tracking and Gating in Adaptive Prostate Radiotherapy. Med Phys 2013. [DOI: 10.1118/1.4815432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Eckhause T, Al-Hallaq H, Ritter T, DeMarco J, Farrey K, Kim G, Popple R, Sharma V, Perez M, Park S, Booth J, Thorwarth R, Moran J. WE-E-141-07: Automating Linac QA for Delivery and Analysis. Med Phys 2013. [DOI: 10.1118/1.4815598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Roberts NJ, Patel IS, Kidd L, Lawrence M, Booth J. P32 Does Disease Severity Affect Patient Activation Scores in COPD?: Abstract P32 Table 1. Thorax 2012. [DOI: 10.1136/thoraxjnl-2012-202678.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Benstead K, Gilson D, Hanna L, Radhakrishna G, McAleer J, Bloomfield D, Jyothirmayi R, Campbell A, Booth J. Training in clinical oncology: results of the Royal College of Radiologists' survey of new consultants. Clin Oncol (R Coll Radiol) 2012; 24:e143-8. [PMID: 22981545 DOI: 10.1016/j.clon.2012.08.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Revised: 07/23/2012] [Accepted: 08/02/2012] [Indexed: 11/29/2022]
Abstract
AIMS To seek the views of consultants appointed less than 2 years ago on the appropriateness of their training in fitting them to carry out their present posts, the FRCR examination, experience of research and the prevalence and value of out of programme experience and acting up as a consultant. MATERIALS AND METHODS All the consultants identified from the Royal College of Radiologists' database as having been appointed to a consultant post in the last 2 years were emailed inviting them to take part in a web-based survey. RESULTS The response rate was 60% (32 of 53 consultants). Ninety-four per cent agreed or strongly agreed that training had equipped them for clinical work as a consultant, but only 44% agreed or strongly agreed that training had equipped them to fulfil the management roles. Free text answers stressed the importance of management skills, getting involved with trial set-up and producing publications early in their career. Ninety-four per cent agreed or strongly agreed that they had adequate opportunity to develop skills in systemic therapy and radiotherapy planning, but only 56% thought this was the case for intensity-modulated radiotherapy and image-guided radiotherapy. Although 87% agreed or strongly agreed they had sufficient opportunity to develop teaching skills, this was only the case in 62% with regard to research skills. They published a median number of three papers in peer-reviewed journals. Twenty-five per cent of respondents studied for research degrees; 69% of consultants had undertaken out of programme experience and 50% had acted up as a consultant and these were generally found to be valuable experiences. There was strong support for the FRCR examination. CONCLUSIONS Consultants appointed in the last 2 years are generally satisfied with their training. Training in intensity-modulated radiotherapy and image-guided radiotherapy should be improved and the advanced specialist training requires reviewing to better fit consultants for subspecialisation, management and research.
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Ng J, Booth J, Poulsen P, Eade T, Hegi F, Kneebone A, Kuncic Z, Keall P. TH-E-BRA-11: Real-Time Tumor Localization with Kilovoltage Intrafraction Monitoring: First Clinical Implementation for Prostate Intensity Modulated Arc Therapy. Med Phys 2012. [DOI: 10.1118/1.4736372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Cowey E, Smith LN, Booth J, Weir CJ. Urinary catheterization in acute stroke: clinical realities. A mixed methods study. Clin Rehabil 2011; 26:470-9. [DOI: 10.1177/0269215511426160] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective: To determine what influences the decision to insert an indwelling urinary catheter in acute stroke patients. Design: A prospective casenote review and semi-structured interviews were conducted and corporate catheterization policy in the study sites was investigated. Setting: Three teaching hospitals, typical of stroke service provision in most developed countries. Subjects: Casenotes from 70 consecutive acute stroke admissions; 50 doctors, nurses and physiotherapists working in acute stroke units and medical receiving units. Results: Stroke patients were catheterized for output monitoring, relief of urinary retention or, especially for older patients, continence-related issues. Half of all catheterizations occurred in acute stroke units. Continence and catheterization were considered less important than other aspects of acute stroke care. No catheterization policy or standardized continence assessment tool was in use. Documentation was often lacking. Patients and relatives were not fully involved in the decision to catheterize. Continence assessment and catheterization practices varied widely. Complex unwritten rules relating to gender proliferated. Such rules demonstrated heuristic problem-solving could potentially cause conflict. Decisions to catheterize ‘belonged’ to doctors or nurses depending upon clinical indications. Clinical assessment and specialist referrals were often seen as ‘not my job’. Conclusions: Clear corporate policy on catheterization is required to direct practice. Use of standardized continence assessment tools is recommended to set and monitor standards of care. Documentation relating to urinary catheterization needs to improve.
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Browning J, Wallace M, Chana J, Booth J. Bedside testing for myasthenia gravis: the ice-test. Emerg Med J 2011; 28:709-11. [PMID: 21788239 DOI: 10.1136/emj.06.2010.3091rep] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
A 67-year-old man presented to the acute medical take with a history of droopy eyelids and difficulty swallowing. A diagnosis of myasthenia gravis was suspected from the clinical history. The patient's symptoms were progressive, raising concerns of aspiration pneumonia or respiratory compromise if untreated. Definitive diagnosis of myasthenia gravis relies upon a combination of serological and electrophysiological investigations, the results of which are not immediately available in an acute situation. Bedside tests are therefore of practical clinical importance to enable prompt and effective initiation of treatment, particularly where critical symptoms are present. The ice-test is a straightforward and non-invasive investigation with a high sensitivity for myasthenia gravis and is a useful alternative to edrophonium testing. It is especially helpful in patients with cardiac and respiratory co-morbidities for whom acetylcholinesterase inhibitors are contraindicated. We describe a case where this simple bedside test successfully expedited the correct treatment and improved patient care.
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Thomas LH, Watkins CL, French B, Sutton C, Forshaw D, Cheater F, Roe B, Leathley MJ, Burton C, McColl E, Booth J. Study protocol: ICONS: identifying continence options after stroke: a randomised trial. Trials 2011; 12:131. [PMID: 21599945 PMCID: PMC3113990 DOI: 10.1186/1745-6215-12-131] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Accepted: 05/20/2011] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Urinary incontinence following acute stroke is common, affecting between 40%-60% of people in hospital after a stroke. Despite the availability of clinical guidelines for urinary incontinence and urinary incontinence after stroke, national audit data suggest incontinence is often poorly managed. Conservative interventions (e.g. bladder training, pelvic floor muscle training and prompted voiding) have been shown to have some effect with participants in Cochrane systematic reviews, but have not had their effectiveness demonstrated with stroke patients. METHODS/DESIGN A cluster randomised controlled pilot trial designed to assess the feasibility of a full-scale cluster randomised trial and to provide preliminary evidence of the effectiveness and cost-effectiveness of a systematic voiding programme for the management of continence after stroke. Stroke services will be randomised to receive the systematic voiding programme, the systematic voiding programme plus supported implementation, or usual care. The trial aims to recruit at least 780 participants in 12 stroke services (4 per arm). The primary outcome is presence/absence of incontinence at six weeks post-stroke. Secondary outcomes include frequency and severity of incontinence, quality of life and cost-utility. Outcomes will be measured at six weeks, three months and (for participants recruited in the first three months) twelve months after stroke. Process data will include rates of recruitment and retention and fidelity of intervention delivery. An integrated qualitative evaluation will be conducted in order to describe implementation and assist in explaining the potential mediators and modifiers of the process. TRIAL REGISTRATION ISRCTN: ISRCTN08609907
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Hamdan S, Verbeke CS, Fox N, Booth J, Bottley G, Pandha HS, Blair GE. The roles of cell surface attachment molecules and coagulation Factor X in adenovirus 5-mediated gene transfer in pancreatic cancer cells. Cancer Gene Ther 2011; 18:478-88. [PMID: 21566668 DOI: 10.1038/cgt.2011.17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Transduction of 11 pancreatic cancer cell lines with a replication-deficient adenovirus 5 expressing enhanced green fluorescent protein (Ad5EGFP) was analyzed and variable EGFP levels were observed, ranging from <1% to ∼40% of cells transduced, depending on the cell line. Efficient Ad5EGFP transduction was associated mainly with higher levels of cell surface Coxsackie and adenovirus receptor (CAR) but not with expression of α(v)β(3) and α(v)β(5) integrins and was fiber dependent. Reduction of CAR by RNA interference resulted in a corresponding decrease in Ad5EGFP transduction. Pre-treatment of Ad5EGFP with blood coagulation Factor X increased virus entry even in the presence of low CAR levels generated by RNA interference, suggesting a potential alternative route of Ad5 entry into pancreatic cancer cells. Immunohistochemistry carried out on 188 pancreatic ductal adenocarcinomas and 68 matched controls showed that CAR was absent in 102 (54%) of adenocarcinomas, whereas moderate and strong staining was observed in 58 (31%) and 28 (15%) cases, respectively. Weak or absent CAR immunolabeling correlated with poor histological differentiation of pancreatic cancer. In normal tissue, strong immunolabeling was detected in islet cells and in the majority of inter- and intralobular pancreatic ducts.
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Veighey K, Booth J, Davenport A. Does the choice of phosphate binder affect trace element levels in chronic kidney disease patients treated by regular haemodialysis? Nephrol Dial Transplant 2011. [DOI: 10.1093/ndt/gfq672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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