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Kaup S, Kondal D, Shivalli S, Buchan J. Statistical analysis plan for the phaco TIp position during clear corneal Phacoemulsification Surgery (TIPS) randomized controlled trial. Trials 2024; 25:138. [PMID: 38388956 PMCID: PMC10882898 DOI: 10.1186/s13063-024-07979-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 02/12/2024] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND Cornea is the most important refractive media in the eye, and damage to the corneal endothelium is one of the most common causes of poor visual outcome following cataract surgery, particularly in those with predisposing factors. The role of phaco tip position during phacoemulsification on corneal endothelial damage is ambiguous, and there is no consensus regarding the most cornea-friendly phaco tip position (bevel-up or bevel-down). The objective of the trial is to compare the effect of phaco tip position (bevel-up vs. bevel-down) during phacoemulsification using direct chop technique on corneal endothelial cell count. METHODS AND DESIGN TIPS is a randomised, multicentre, parallel-group, triple-masked (participant, outcome assessor, and statistician) trial with 1:1 allocation ratio. A total of 480 eligible participants, aged > 18 years with immature cataract, will be randomly allocated into bevel-up and bevel-down groups at two centres. Randomisation will be stratified according to the cataract grade. The primary outcome is postoperative endothelial cell count at 1 month. Secondary outcomes are central corneal thickness on postoperative days 1, 15, and 30 and difference in intraoperative complications. CONCLUSION In this paper, we describe the detailed statistical analysis plan (SAP) for the TIPS trial, which was prepared prior to database lock. The SAP includes details of planned analyses and unpopulated tables, which will be reported in the publications. We plan to lock the database in July 2023 and publish the results later in the same year. SAP Version 0.1 (dated: 28 April 2023) Protocol version:2.0 TRIAL REGISTRATION: Clinical Trial Registry of India CTRI/2019/02/017464. Registered on 5 February 2019; https://ctri.nic.in/Clinicaltrials/pmaindet2.php?trialid=29764&EncHid=&userName=2019/02/017464.
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Affiliation(s)
- Soujanya Kaup
- Department of Ophthalmology, Yenepoya Medical College Hospital, Yenepoya Deemed to be University, Mangalore, Karnataka, 575018, India.
- DBT/Wellcome Trust India Alliance (Early Career - Clinical and Public Health) Fellow, Hyderabad, 500034, India.
| | - Dimple Kondal
- Centre for Chronic Disease Control, Safdarjung Development Area, C-1/52, Second Floor, Delhi, 110016, India
- Hubert Department of Global Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Siddharudha Shivalli
- Department of Medical Statistics, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
| | - John Buchan
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
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Buchan J. Endophthalmitis rates and risk factors following intraocular surgeries: can we turn big-data benchmarks into patient benefit? Br J Ophthalmol 2024; 108:165-166. [PMID: 38164546 DOI: 10.1136/bjo-2023-324593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 09/17/2023] [Indexed: 01/03/2024]
Affiliation(s)
- John Buchan
- Clinical Research Department, London School of Hygiene and Tropical Medicine International Centre for Eye Health, London, UK
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Kaup S, Shivalli S, Ajjinicanda Ganapathi C, Arunachalam C, Buchan J, Kumar Pandey S, Prasad Kudlu K. Does the phaco TIp position during clear corneal Phacoemulsification Surgery adversely affect corneal endothelium? TIPS study protocol for a randomised, triple-masked, parallel-group trial of bevel-up versus bevel-down phacoemulsification. Wellcome Open Res 2023; 5:167. [PMID: 38186588 PMCID: PMC10767251 DOI: 10.12688/wellcomeopenres.16098.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2023] [Indexed: 01/09/2024] Open
Abstract
Introduction: Globally, at least 30 million cataract surgeries are required annually to prevent cataract-related blindness. Corneal endothelial decompensation is one of the most common causes of poor visual outcome following cataract surgery, particularly in those with predisposing factors. The increasing ageing population and reduced visual impairment threshold for cataract surgery have resulted in rising cataract surgical rates and hence, an increase in corneal endothelial decompensation is expected. The role of phaco tip position on corneal endothelial damage is ambiguous. Previous studies have reported contradictory results and were also underpowered to detect a significant difference due to small sample sizes. With no consensus regarding the most cornea-friendly phaco tip position (bevel-up versus bevel-down) during phacoemulsification, we propose a randomised clinical trial with a robust design using direct chop phaco-technique. Objective: To compare the effect of phaco tip position (bevel-up vs. bevel-down) on corneal endothelial cell count during phacoemulsification. Methods: A randomised, multicentre, parallel-group, triple-masked (participant, outcome assessor, and statistician) trial with 1:1 allocation ratio is proposed. By adopting stratified randomisation (according to cataract grade), we will randomly allocate 480 patients aged >18 years with immature cataract into bevel-up and bevel-down groups at two centres. History of significant ocular trauma, previous intraocular surgery, shallow anterior chamber, low endothelial cell count, pseudoexfoliation syndrome, intraocular inflammation, and corneal endothelial dystrophy are the key exclusion criteria. The primary outcome is postoperative endothelial cell count at one month. Secondary outcomes are central corneal thickness on postoperative days 1, 15, and 30, and intraoperative complications. Trial registration: Clinical Trial Registry of India CTRI/2019/02/017464 (05/02/2019).
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Affiliation(s)
- Soujanya Kaup
- Department of Ophthalmology, Yenepoya Medical College Hospital, Yenepoya Deemed to be University, Mangalore, Karnataka, 575018, India
| | - Siddharudha Shivalli
- Department of Medical Statistics, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
| | | | - Cynthia Arunachalam
- Department of Ophthalmology, Yenepoya Medical College Hospital, Yenepoya Deemed to be University, Mangalore, Karnataka, 575018, India
| | - John Buchan
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, Keppel Street, London, WC1E 7HT, UK
| | - Suresh Kumar Pandey
- Department of Ophthalmology, SuVi Eye Institute and Lasik Laser Center, Kota, Rajasthan, 324005, India
| | - Krishna Prasad Kudlu
- Department of Ophthalmology, Netra Jyothi Charitable Trust Hospital, Udupi, Karnataka, 576101, India
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Annoh R, Buchan J, Gichuhi S, Philippin H, Arunga S, Mukome A, Admassu F, Lewis K, Makupa W, Otiti-Sengeri J, Kim M, MacLeod D, Burton MJ, Dean WH. The Impact of Simulation-Based Trabeculectomy Training on Resident Core Surgical Skill Competency. J Glaucoma 2023; 32:57-64. [PMID: 36001526 PMCID: PMC7614002 DOI: 10.1097/ijg.0000000000002114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 07/27/2022] [Indexed: 02/08/2023]
Abstract
PRCIS Simulation-based surgical education shows a positive, immediate, and sustained impact on core surgical skill competency in trabeculectomy among resident ophthalmologists in training. PURPOSE To measure the impact of trabeculectomy, surgical simulation training on core surgical skill competency in resident ophthalmologists. MATERIALS AND METHODS This is a post hoc analysis of the GLAucoma Simulated Surgery trial, which is a multicenter, multinational randomized controlled trial. Resident ophthalmologists from 6 training centers in sub-Saharan Africa (in Kenya, Uganda, Tanzania, Zimbabwe, and South Africa) were recruited according to the inclusion criteria of having performed zero surgical trabeculectomies and assisted in <5. Participants were randomly assigned to intervention and control arms using allocation concealment. The intervention was a 1-week intensive trabeculectomy surgical simulation course. Outcome measures were mean surgical competency scores in 8 key trabeculectomy surgical skills (scleral incision, scleral flap, releasable suturing, conjunctival suturing, sclerostomy, tissue handling, fluidity, and speed), using a validated scoring tool. RESULTS Forty-nine residents were included in the intention-to-treat analysis. Baseline characteristics were balanced between arms. Median baseline surgical competency scores were 2.88/16 [interquartile range (IQR): 1.75-4.17] and 3.25/16 (IQR: 1.83-4.75) in the intervention and control arms, respectively. At primary intervention, median scores increased to 11.67/16 (IQR: 9.58-12.63) and this effect was maintained at 3 months and 1 year ( P =0.0001). Maximum competency scores at primary intervention were achieved in the core trabeculectomy skills of releasable suturing (n=17, 74%), scleral flap formation (n=16, 70%), and scleral incision (n=15, 65%) compared with scores at baseline. CONCLUSIONS This study demonstrates the positive impact of intensive simulation-based surgical education on core trabeculectomy skill development. The rapid and sustained effect of resident skill acquisition pose strong arguments for its formal integration into ophthalmic surgical education.
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Affiliation(s)
- Roxanne Annoh
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK
| | - John Buchan
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK
| | | | - Heiko Philippin
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK
- Eye Centre, Medical Centre, Faculty of Medicine, University of Freiburg, Germany
| | - Simon Arunga
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK
- Mbarara University & Referral Hospital Eye Centre (MURHEC), Mbarara University of Science and Technology, Mbarara, Uganda
| | - Agrippa Mukome
- Department of Ophthalmology, Parirenyatwa Hospitals, University of Zimbabwe, Harare
| | | | - Karinya Lewis
- Ophthalmology Department, Salisbury Hospitals NHS Foundation Trust, UK
- Eye Foundation Hospitals, Lagos, Nigeria
| | | | - Juliet Otiti-Sengeri
- Department of Ophthalmology, School of Medicine, Makerere University, Kampala, Uganda
| | - Min Kim
- Tropical Epidemiology Group, Faculty of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London; UK
| | - David MacLeod
- Tropical Epidemiology Group, Faculty of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London; UK
| | - Matthew J. Burton
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK
- National Institute for Health Research Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, United Kingdom
| | - William H. Dean
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK
- Division of Ophthalmology, University of Cape Town, South Africa
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Ogundo CLA, Bascaran C, Habtamu E, Buchan J, Mwangi N. Eye Health Integration in Southern and Eastern Africa: A Scoping Review. Middle East Afr J Ophthalmol 2023; 30:44-50. [PMID: 38435102 PMCID: PMC10903717 DOI: 10.4103/meajo.meajo_320_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 11/19/2023] [Accepted: 11/27/2023] [Indexed: 03/05/2024] Open
Abstract
Integrated health systems are deemed necessary for the attainment of universal health coverage, and the East, Central, and Southern Africa Health Community (ECSA-HC) recently passed a resolution to endorse the integration of eye health into the wider health system. This review presents the current state of integration of eye health systems in the region. Eight hundred and twelve articles between 1946 and 2020 were identified from four electronic databases that were searched. Article selection and data charting were done by two reviewers independently. Thirty articles met the eligibility criteria and were included in the narrative synthesis. Majority were observational studies (60%) and from Tanzania (43%). No explicit definition of integration was found. Eye health was prioritized at national level in some countries but failed to cascade to the lower levels. Eye health system integration was commonly viewed in terms of service delivery and was targeted at the primary level. Eye care data documentation was inadequate. Workforce integration efforts were focused on training general health-care cadres and communities to create a multidisciplinary team but with some concerns on quality of services. Government funding for eye care was limited. The findings show eye health system integration in the ECSA-HC region has been in progress for about four decades and is focused on the inclusion of eye health services into other health-care programs. Integration of comprehensive eye care into all the health system building blocks, particularly financial integration, needs to be given greater emphasis in the ECSA-HC.
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Affiliation(s)
| | - Covadonga Bascaran
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Esmael Habtamu
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Eyu-Ethiopia: Eye Health Research, Training and Service Centre, Bahir Dar, Ethiopia
- Department of Ophthalmology, College of Medicine and Health Sciences, Bahir Dar University, Bahir Dar, Ethiopia
| | - John Buchan
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - Nyawira Mwangi
- Department of Ophthalmology, Kenya Medical Training College, Nairobi, Kenya
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De Silva I, Thomas MG, Shirodkar AL, Kuht HJ, Ku JY, Chaturvedi R, Beer F, Patel R, Rana-Rahman R, Anderson S, Dickerson P, Walsh F, While B, Clarke L, Siriwardena D, Dhawahir-Scala F, Buchan J, Verma S. Patterns of attendances to the hospital emergency eye care service: a multicentre study in England. Eye (Lond) 2022; 36:2304-2311. [PMID: 34845355 PMCID: PMC8629695 DOI: 10.1038/s41433-021-01849-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 10/09/2021] [Accepted: 11/08/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND/OBJECTIVES To characterise the patterns of presentation and diagnostic frequencies in Hospital Emergency Eye Care Services (HEECS) across 13 hospitals in England. METHODS Retrospective, cross-sectional, observational multi-centre (n = 13) study to assess HEECS attendances over a 28-day study period. Data derived included: number of consecutive attendances, patient demographics and diagnoses. Age and gender variations, the impact of day of the week on attendance patterns, diagnostic frequencies and estimates of the annual incidence and attendance rates were evaluated. RESULTS A total of 17,667 patient (mean ± standard deviation age = 49.6 ± 21.8 years) attendances were identified with an estimated HEECS annual new attendance rate of 31.0 per 1,000 population. Significantly more females (53%) than males (47%) attended HEECS (p < 0.001). Female attendances were 13% higher in those ≥50 years of age. Weekends were associated with a significant reduction in attendances compared to weekdays (χ2 = 6.94, p < 0.001). Among weekdays, Mondays and Fridays were associated with significantly higher attendances compared with midweek (χ2 = 2.20, p = 0.032). Presenting pathologies involving the external eye, cornea and conjunctiva accounted for 28.6% of the caseload. CONCLUSION This is the largest multicentre study assessing attendance patterns in HEECS in England. We have, for the first time, observed a "weekend effect" in relation to attendance to HEECS. Differences in health-seeking behaviour and lack of awareness of HEECS weekend services may be partly attributed to the differences observed. Our findings, along with the type of presentations, have the potential to guide commissioners with future planning of HEECS.
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Affiliation(s)
- Ian De Silva
- Department of Ophthalmology, University Hospitals of Leicester, Leicester Royal Infirmary, Leicester, LE1 5WW, UK.
| | - Mervyn G Thomas
- Department of Ophthalmology, University Hospitals of Leicester, Leicester Royal Infirmary, Leicester, LE1 5WW, UK
- The University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, PO Box 65, Leicester, LE2 7LX, UK
| | - Amy-Lee Shirodkar
- Moorfields Eye Hospital NHS Foundation Trust, 162 City Road, London, EC1V 2PD, UK
| | - Helen J Kuht
- Department of Ophthalmology, University Hospitals of Leicester, Leicester Royal Infirmary, Leicester, LE1 5WW, UK
- The University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, PO Box 65, Leicester, LE2 7LX, UK
| | - Jae Yee Ku
- Manchester Royal Eye Hospital, Oxford Road, Manchester, M13 9WL, UK
- Department of Eye and Vision Science, Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, L7 8TX, UK
| | - Ritu Chaturvedi
- Manchester Royal Eye Hospital, Oxford Road, Manchester, M13 9WL, UK
| | - Freddy Beer
- Ophthalmology Department, Queen Alexandra Hospital, Southwick Hill Road, Portsmouth, PO6 3LY, UK
| | - Radhika Patel
- The Victoria Eye Unit, The County Hospital, Union Walk, Hereford, HR1 2ER, UK
| | - Romeela Rana-Rahman
- Eye Department, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP, UK
| | - Sarah Anderson
- Department of Ophthalmology, York Teaching Hospitals NHS Foundation Trust, Wigginton Road, York, YO31 8HE, UK
| | - Polly Dickerson
- Department of Ophthalmology, Scarborough Hospital, Woodlands Drive, Scarborough, YO12 6QL, UK
| | - Francine Walsh
- Ophthalmology Department, Royal Bolton Hospital, Minerva Road, Bolton, BL4 0JR, UK
| | - Ben While
- The Victoria Eye Unit, The County Hospital, Union Walk, Hereford, HR1 2ER, UK
| | - Lucy Clarke
- Eye Department, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP, UK
| | - Dilani Siriwardena
- Moorfields Eye Hospital NHS Foundation Trust, 162 City Road, London, EC1V 2PD, UK
| | | | - John Buchan
- International Centre for Eye Health, Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
- The Leeds Centre for Ophthalmology, St. James's University Hospital, Beckett Street, Leeds, LS9 7TF, UK
| | - Seema Verma
- Eye Department, St Thomas' Hospital, Westminster Bridge Road, London, SE1 7EH, UK
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Williams G, Buchan J, Zapata T. Health workforce governance during the COVID-19 pandemic: learning lessons from Europe. Eur J Public Health 2022. [PMCID: PMC9593464 DOI: 10.1093/eurpub/ckac129.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Background This study considers some of the effective governance tools that have been utilised to mobilise, redeploy and repurpose the health workforce during the COVID-19 pandemic to create surge capacity, protect workforce health and wellbeing and ensure effective implementation of vaccination programmes. Methods Data were systematically extracted from the Observatory/WHO Europe/European Commission Health System and Response Monitor, covering the period from March 2020 to May 2021 with a focus on four dimensions of health workforce governance: national/regional government policies; legislation; regulation; the role and remit of employers and management. Results A wide-range of governance actions across all levels were required to ensure the health workforce could provide effective pandemic responses. Creating surge capacity, for example, often required adoption of emergency legislation to facilitate exceptional hiring procedures and the changing of (re-)registration requirements, as well as additional training and development of new competencies among other actions. Putting in place physical and mental health support meanwhile required defining infection control policies, monitoring PPE supply and distribution, ensuring access to free mental health support, and implementation of breaks. Some countries also allowed “new” types of workers to vaccinate; online or in person training; adjustments to payment mechanisms; and creating new supervision requirements. Conclusions Pandemic responses have broken up sclerotic governance structures which have hampered past health workforce development and reform, new training programmes have been rapidly developed, leadership roles have been delegated to a wider-range of health professionals than before and monitoring systems that provide more rapid data on staffing levels have been put into place. Learning from and evaluating these changes will be important to help inform future pandemic responses.
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Affiliation(s)
- G Williams
- European Observatory on Health Systems and Policies, London, UK
- Contact:
| | - J Buchan
- University of Edinburgh, Edinburgh, UK
- Health Foundation, London, UK
| | - T Zapata
- WHO Regional Office for Europe, Copenhagen, Denmark
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Myers DM, Kelley JA, Taylor BC, Umbel B, Buchan J, Melaragno A. The Intercalary Fragment in Posterior Malleolus Fractures: Characterization and Significance. J Foot Ankle Surg 2022; 61:1060-1064. [PMID: 35197223 DOI: 10.1053/j.jfas.2022.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 07/06/2021] [Accepted: 01/11/2022] [Indexed: 02/03/2023]
Abstract
Methods of fixation in ankle fractures involving the posterior malleolus have become increasingly scrutinized. With the increase in computed tomography (CT), an intercalary fracture fragment (ICF) adjacent to the posterior malleolus has been oft described. Treatment of the ICF remains controversial and the purpose of this study was to evaluate radiographic and clinical outcomes in patients who had direct reduction and fixation of this fragment compared to those where the ICF was not fixed. This retrospective study included 249 trimalleolar and posterior pilon ankle fractures grouped into those who had the ICF reduced and fixed (n = 74) and those where the ICF was not directly addressed (n = 175). CT scans were evaluated for size and location of the ICF. Demographic, radiographic and intraoperative variables were collected and analyzed. The group which had the ICF reduced and fixed had decreased Kellgren-Lawrence scores (p = .001). There was also a higher rate of repeat surgery in the group who had the ICF fixed, although not meeting statistical significance. There were no differences in size or location of the ICF fragment between groups. We did identify similarities with other studies in regard to size and posterolateral location of the ICF between groups. However, based on worsening radiographic outcomes of the group where the ICF was reduced and fixed, we do not necessarily recommend universal treatment of this fragment. The surgeon's goal should always be a concentric articular reduction and treatment of the ICF should be considered on a case-by-case basis.
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Affiliation(s)
- Devon M Myers
- Department of Orthopaedic Surgery, OhioHealth Grant Medical Center, Columbus, OH; Ohio University Heritage College of Osteopathic Medicine, Athens, OH.
| | - Justin A Kelley
- Department of Orthopaedic Surgery, OhioHealth Grant Medical Center, Columbus, OH; Ohio University Heritage College of Osteopathic Medicine, Athens, OH
| | - Benjamin C Taylor
- Department of Orthopaedic Surgery, OhioHealth Grant Medical Center, Columbus, OH; Ohio University Heritage College of Osteopathic Medicine, Athens, OH
| | - Benjamin Umbel
- Department of Orthopaedic Surgery, OhioHealth Grant Medical Center, Columbus, OH; Ohio University Heritage College of Osteopathic Medicine, Athens, OH
| | - John Buchan
- Department of Orthopaedic Surgery, OhioHealth Grant Medical Center, Columbus, OH; Ohio University Heritage College of Osteopathic Medicine, Athens, OH
| | - Anthony Melaragno
- Department of Orthopaedic Surgery, OhioHealth Grant Medical Center, Columbus, OH; Ohio University Heritage College of Osteopathic Medicine, Athens, OH
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AbdulRahman A, Bascaran C, Buchan J. Outcomes of paediatric cataract surgery with and without the use of trypan blue. Trop Med Int Health 2022; 27:776-780. [PMID: 35859347 DOI: 10.1111/tmi.13801] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/20/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVE This systematic review was undertaken to answer the research question: "In children with primary cataracts, what are the outcomes (posterior continuous curvilinear capsulorhexis + posterior chamber intraocular lens implantation) of surgery when performed with and without trypan blue staining of the posterior lens capsule?" METHODS An electronic search in six biomedical databases was conducted to identify randomised controlled trials that compared trypan blue with no stain during surgery in children 0 -16 years with primary cataracts. Titles and abstracts of studies published between 1946 and 2021 in English language were screened. Data extraction, risk of bias assessment and synthesis of findings were done by two independent reviewers, while conflicts were discussed and resolved with a third. RESULTS 115 of 153 articles were screened after de-duplication. Of these, 113 were excluded while two randomised controlled trials involving 56 eyes of 42 partcipants were included in the review. The risk of bias was similar across all domains in both. Staining of the capsule led to complete posterior capsulorhexis and optimal placement of the implant in >90% of study eyes, while the control arms had 65% - 80% for both outcomes. CONCLUSION Use of trypan blue in paediatric cataract surgery probably leads to better outcomes, but more well-conducted randomised controlled trials on this important topic are needed.
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Affiliation(s)
| | - Cova Bascaran
- London School of Hygiene & Tropical Medicine, United Kingdom
| | - John Buchan
- London School of Hygiene & Tropical Medicine, United Kingdom
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10
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Zhang JH, Adewole AT, Ramke J, Buchan J. Publishing opportunities and gender equity: Embedding monitoring in eye health education. Clin Exp Ophthalmol 2022; 50:809-811. [DOI: 10.1111/ceo.14123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 05/28/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Justine H. Zhang
- International Centre for Eye Health London School of Hygiene & Tropical Medicine London UK
- Royal Free Hospital London UK
| | | | - Jacqueline Ramke
- International Centre for Eye Health London School of Hygiene & Tropical Medicine London UK
- School of Optometry and Vision Science University of Auckland Auckland New Zealand
| | - John Buchan
- International Centre for Eye Health London School of Hygiene & Tropical Medicine London UK
- Leeds Teaching Hospitals NHS Trust Leeds UK
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Buchan J, Janda M, Box R, Rogers L, Hayes S. SELF-EFFICACY TO OVERCOME EXERCISE BARRIERS IN INDIVIDUALS WITH CANCER-RELATED LYMPHEDEMA. Lymphology 2022. [DOI: 10.2458/lymph.5140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Although cancer survivors are recommended to exercise, they may lack confidence (self-efficacy) to be active. This research aimed to measure exercise barriers and related self- efficacy in individuals with cancer-related lymphedema as well as examine relationships between self-efficacy and participant characteristics. A cross-sectional survey was under- taken in individuals with cancer-related lymphedema using a validated 14-item Likert scale assessing self-efficacy to overcome general and lymphedema-specific exercise barriers (0%=not at all confident, 100%=extremely confident).
Demographic, medical and lymphedema data were also collected. Of 109 participants (52% response), 79% (n=86) had breast cancer-related lymphedema. Participants were found to be moderately confident to exercise when facing general (48% [95% CI: 44, 52]) and lymphedema-specific exercise barriers (51% [95% CI: 47, 55]). Participants who were female, sedentary (p<0.05), had lymphedema for ≥2 years, and reported greater symptom burden (p<0.05) recorded lower general exercise barriers self- efficacy. Lower lymphedema-specific exercise barriers self-efficacy was reported by individuals who were sedentary, had cancers other than breast, and higher symptom burden.
These findings suggest general and lymphedema-specific barriers challenge exercise confidence in those with cancer-related lymphedema, and strategies tailored to improve confidence in overcoming exercise barriers are warranted. Supporting individuals to be sufficiently active during and following cancer treatment should consider behavior change strategies tailored to the unique needs faced by
individuals with lymphedema.
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Affiliation(s)
| | | | - R. Box
- Lymphedema and Breast Oncology Physiotherapy
| | | | - S. Hayes
- Menzies Health Institute Queensland
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Kirkwood G, Buchan J, Pollock AM. Waiting Times for Cataract Surgery in Scotland since 2002 and the Effect of Austerity: An Interrupted Time Series Analysis. Ophthalmic Epidemiol 2022; 30:1-8. [PMID: 35650522 DOI: 10.1080/09286586.2022.2075900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 04/27/2022] [Accepted: 05/02/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE In Scotland, in 2002, the National Waiting Times Unit was launched to reduce NHS waiting times. This was accompanied by a series of waiting time targets across the NHS in Scotland. The purpose of this study is to analyse changes in equality of access to treatment by socioeconomic deprivation associated with this initiative. METHODS Trends in annual cataract rates were calculated using secondary care admissions' Scottish Morbidity Record (SMR01) data on NHS funded elective cataract procedures for patients treated in Scotland from 01 April 1997 to 31 March 2019. An interrupted time series model was used to analyse socioeconomic differences in waiting times by deprivation quintile over three time periods; pre and post waiting time initiative, and post austerity. RESULTS Cataract Surgical Rates more than doubled from 3,723 per million population in 1997/1998 to 7,896 per million population in 2018/2019. Mean waiting time fell from 129.5 days in 1997/1998 to 87.7 days in 2018/2019. Inequality in mean waiting time between most and least deprived cataract patients increased by 1.34 days per quarter between 01 April 1997 and 30 June 2002 and following the waiting time initiative fell by 0.41 days per quarter through to 31 March 2010; and then decreased by 0.002 days per quarter between 01 April 2010 and 31 March 2019. CONCLUSION The waiting time initiative had a major impact on reducing inequality in waiting times between socioeconomic groups. The onset of austerity in 2010 was associated with a very small and insignificant increase in inequality.
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Affiliation(s)
- Graham Kirkwood
- Population Health Sciences Institute, Newcastle University,Newcastle upon Tyne, UK
| | - John Buchan
- Royal College of Ophthalmologists National Ophthalmology Database, International Centre for Eye Health, London School of Hygiene and Tropical Medicine
| | - Allyson M Pollock
- Population Health Sciences Institute, Newcastle University,Newcastle upon Tyne, UK
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13
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Zhang JH, Ramke J, Jan C, Bascaran C, Mwangi N, Furtado JM, Yasmin S, Ogundo C, Yoshizaki M, Marques AP, Buchan J, Holland P, Ah Tong BAM, Evans JR, Congdon N, Webson A, Burton MJ. Advancing the Sustainable Development Goals through improving eye health: a scoping review. Lancet Planet Health 2022; 6:e270-e280. [PMID: 35219448 DOI: 10.1016/s2542-5196(21)00351-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 11/30/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
UN member states have committed to achieving the Sustainable Development Goals (SDGs) by 2030. This Review examines the published evidence on how improving eye health can contribute to advancing the SDGs (beyond SDG 3). We identified 29 studies that showed direct benefits from providing eye health services on SDGs related to one or more of poverty (SDGs 1, 2, and 8), education (SDG 4), equality (SDGs 5 and 10), and sustainable cities (SDG 11). The eye health services included cataract surgery, free cataract screening, provision of spectacles, trichiasis surgery, rehabilitation services, and rural community eye health volunteers. These findings provide a comprehensive perspective on the direct links between eye health services and advancing the SDGs. In addition, eye health services likely have indirect effects on multiple SDGs, mediated through one of the direct effects. Finally, there are additional plausible links to other SDGs, for which evidence has not yet been established.
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Affiliation(s)
- Justine H Zhang
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK; Manchester Royal Eye Hospital, Manchester, UK.
| | - Jacqueline Ramke
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK; School of Optometry and Vision Science, University of Auckland, Auckland, New Zealand
| | | | - Covadonga Bascaran
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Nyawira Mwangi
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK; Department of Clinical Medicine, Kenya Medical Training College, Nairobi, Kenya
| | - João M Furtado
- Division of Ophthalmology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | - Cynthia Ogundo
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK; Department of Ophthalmology, Mbagathi Hospital, Nairobi, Kenya
| | - Miho Yoshizaki
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Ana Patricia Marques
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - John Buchan
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Peter Holland
- International Agency for the Prevention of Blindness, London, UK
| | | | - Jennifer R Evans
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK; Centre for Public Health, Queen's University, Belfast, UK
| | - Nathan Congdon
- Centre for Public Health, Queen's University, Belfast, UK; Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
| | - Aubrey Webson
- Permanent Mission of Antigua and Barbuda to the United Nations, New York, NY, USA
| | - Matthew J Burton
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK; National Institute for Health Research Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, UK
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14
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Buchan J, Janda M, Box R, Rogers LQ, Hayes S. Self-efficacy to overcome exercise barriers in individuals with cancer-related lymphedema. Lymphology 2022; 55:10-20. [PMID: 35896111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Although cancer survivors are recommended to exercise, they may lack confidence (self-efficacy) to be active. This research aimed to measure exercise barriers and related selfefficacy in individuals with cancer-related lymphedema as well as examine relationships between self-efficacy and participant characteristics. A cross-sectional survey was undertaken in individuals with cancer-related lymphedema using a validated 14-item Likert scale assessing self-efficacy to overcome general and lymphedema-specific exercise barriers (0%=not at all confident, 100%=extremely confident). Demographic, medical and lymphedema data were also collected. Of 109 participants (52% response), 79% (n=86) had breast cancer-related lymphedema. Participants were found to be moderately confident to exercise when facing general (48% [95% CI: 44, 52]) and lymphedema- specific exercise barriers (51% [95% CI: 47, 55]). Participants who were female, sedentary (p<0.05), had lymphedema for ≥2 years, and reported greater symptom burden (p<0.05) recorded lower general exercise barriers selfefficacy. Lower lymphedema-specific exercise barriers self-efficacy was reported by individuals who were sedentary, had cancers other than breast, and higher symptom burden. These findings suggest general and lymphedema- specific barriers challenge exercise confidence in those with cancer-related lymphedema, and strategies tailored to improve confidence in overcoming exercise barriers are warranted. Supporting individuals to be sufficiently active during and following cancer treatment should consider behavior change strategies tailored to the unique needs faced by individuals with lymphedema.
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Affiliation(s)
- J Buchan
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, Australia
| | - M Janda
- Centre for Health Services Research, University of Queensland, Brisbane, QLD, Australia
| | - R Box
- Lymphedema and Breast Oncology Physiotherapy, Brisbane, QLD, Australia
| | - L Q Rogers
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - S Hayes
- Menzies Health Institute Queensland, Griffith University, Gold Coast, QLD, Australia
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15
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Annoh R, Banks LM, Gichuhi S, Buchan J, Makupa W, Otiti J, Mukome A, Arunga S, Burton MJ, Dean WH. Experiences and Perceptions of Ophthalmic Simulation-Based Surgical Education in Sub-Saharan Africa. J Surg Educ 2021; 78:1973-1984. [PMID: 33985925 PMCID: PMC8668871 DOI: 10.1016/j.jsurg.2021.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/19/2021] [Accepted: 04/12/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Simulation-based surgical education (SBSE) can positively impact trainee surgical competence. However, a detailed qualitative study of the role of simulation in ophthalmic surgical education has not previously been conducted. OBJECTIVE To explore the experiences of trainee ophthalmologists and ophthalmic surgeon educators' use of simulation, and the perceived challenges in surgical training. METHODS A multi-center, multi-country qualitative study was conducted between October 2017 and August 2020. Trainee ophthalmologists from six training centers in sub-Saharan Africa (SSA) (in Kenya, Uganda, Tanzania, Zimbabwe and South Africa) participated in semi-structured interviews, before and after an intense simulation training course in intraocular surgery. Semi-structured interviews were also conducted with experienced ophthalmic surgeon educators. Interviews were anonymized, recorded, transcribed and coded. An inductive, bottom-up, constant comparative method was used for thematic analysis. RESULTS Twenty-seven trainee ophthalmologists and 12 ophthalmic surgeon educators were included in the study and interviewed. The benefits and challenges of conventional surgical teaching, attributes of surgical educators, value of simulation in training and barriers to implementing ophthalmic surgical simulation were identified as major themes. Almost all trainees and trainers reported patient safety, a calm environment, the possibility of repetitive practice, and facilitation of reflective learning as beneficial aspects of ophthalmic SBSE. Perceived barriers in surgical training included a lack of surgical cases, poor supervision and limited simulation facilities. CONCLUSIONS Simulation is perceived as an important and valuable model for education amongst trainees and ophthalmic surgeon educators in SSA. Advocating for the expansion and integration of educationally robust simulation surgical skills centers may improve the delivery of ophthalmic surgical education throughout SSA.
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Affiliation(s)
- Roxanne Annoh
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom.
| | - Lena Morgon Banks
- International Centre for Evidence in Disability, Department of Clinical Research, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | | | - John Buchan
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | | | - Juliet Otiti
- Department of Ophthalmology, School of Medicine, Makerere University, Kampala, Uganda
| | - Agrippa Mukome
- Department of Ophthalmology, Parirenyatwa Hospitals, University of Zimbabwe, Harare
| | - Simon Arunga
- Mbarara University & Referral Hospital Eye Centre, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Matthew J Burton
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom; National Institute for Health Research Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, United Kingdom
| | - William H Dean
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom; Division of Ophthalmology, University of Cape Town, South Africa
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16
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Zapata T, Buchan J, Azzopardi-Muscat N. The health workforce: central to an effective response to the COVID-19 pandemic in Europe. Eur J Public Health 2021. [PMCID: PMC8574723 DOI: 10.1093/eurpub/ckab164.059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Background COVID-19 has reinforced the centrality of health workers at the core of a well performing and resilient health system. It has concomitantly exposed the risks of staffing and skills shortages and the importance of protecting the health workforce. This paper focuses on highlighting some of the lessons learnt, challenges and future needs of the health workforce in Europe in the context of COVID-19. Methods We use secondary sources and expert information. Results During the pandemic innovative and flexible approaches were implemented to meet increasing demand for health workers and new skills and responsibilities were adopted over a short period of time. We have seen the rapid adaptation and use of new technologies to deliver care. The pandemic has underlined the importance of valuing, protecting and caring for our health workforce and the need to invest appropriately and adequately in the health workforce to have sufficient, capable and well-motivated health workers. Some of the main challenges that lie ahead of us include the imperative for better investment, to need to improve recruitment and retraining whilst better retaining health workers, a focus on domestic sustainability, redeploying and developing new skills and competences among health workers, enabling more effective multi-professional collaboration and team work, improving the quality of education and training, increasing the public health focus and promoting ethical and sustainable international recruitment of health workers. Conclusions The WHO European Region through its European Programme of Work 2020-2025 is fully committed to support countries in their efforts to continue to respond to COVID-19 and whilst addressing upcoming health workforce challenges.
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17
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Abstract
Unstable pelvic ring disruption is most commonly treated with closed reduction and percutaneous screw fixation. Traditional methods involve screw placement under fluoroscopic imaging, but with recent technologic advances, intraoperative 3D navigation can now be used to help with the insertion of sacroiliac screws. Various cadaver studies have shown that placement of sacroiliac screws under 3D navigation is more accurate than placement under traditional fluoroscopic guidance. This retrospective review of 134 patients evaluated the clinical use of 3D navigation vs traditional fluoroscopy for sacroiliac screw insertion at an urban level I trauma center. Analysis of surgical data showed a significantly longer imaging time with the conventional method compared with the more experimental 3D navigation (204.06 seconds vs 66.90 seconds, P<.01). Further, a significantly larger radiation dose to both the patient and the staff was seen with traditional fluoroscopy (80.1 mGy for each) compared with that of 3D navigation (39.0 mGy and 25.1 mGy, respectively). No statistically significant difference was seen for outcome or follow-up variables between the 2 extrapolated groups. These variables included length of hospital stay, infection, nerve injury, and hardware breakage. The authors advocate that 3D navigated sacroiliac screws are safe and effective for pelvic ring stabilization; this method may be especially applicable in certain difficult imaging situations, such as morbid obesity, bowel gas interference, and overlapping pelvic structures that make the sacral corridor difficult to discern with traditional 2D fluoroscopy. Safe placement of transiliac-transsacral screws (P<.01) occurred with 3D navigation, and there was a statistically significant increase in adequate screw placement in multiple sacral segments compared with single-level stabilization (P<.01). [Orthopedics. 2021;44(4):229-234.].
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18
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Yoshizaki M, Ramke J, Zhang JH, Aghaji A, Furtado JM, Burn H, Gichuhi S, Dean WH, Congdon N, Burton MJ, Buchan J. How can we improve the quality of cataract services for all? A global scoping review. Clin Exp Ophthalmol 2021; 49:672-685. [PMID: 34291550 DOI: 10.1111/ceo.13976] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 07/06/2021] [Accepted: 07/14/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Cataract is a leading cause of blindness and vision impairment globally. Cataract surgery is one of the most frequently performed operations worldwide, but good quality services are not universally available. This scoping review aims to summarise the nature and extent of published literature on interventions to improve the quality of services for age-related cataract globally. METHODS We used the dimensions of quality adopted by WHO-effectiveness, safety, people-centredness, timeliness, equity, integration and efficiency-to which we added planetary health. On 17 November 2019, we searched MEDLINE, Embase and Global Health for manuscripts published since 1990, without language or geographic restrictions. We included studies that reported quality-relevant interventions and excluded studies focused on technical aspects of surgery or that only involved children (younger than 18 years). Screening of titles/abstracts, full-text review and data extraction were performed by two reviewers independently. Studies were grouped thematically and results synthesised narratively. RESULTS Most of the 143 included studies were undertaken in high-income countries (n = 93, 65%); 29 intervention groups were identified, most commonly preoperative education (n = 17, 12%) and pain/anxiety management (n = 16, 11%). Efficiency was the quality element most often assessed (n = 58, 41%) followed by people-centredness (n = 40, 28%), while integration (n = 4) and timeliness (n = 3) were infrequently reported, and no study reported outcomes related to planetary health. CONCLUSION Evidence on interventions to improve quality of cataract services shows unequal regional distribution. There is an urgent need for more evidence relevant to low- and middle-income countries as well as across all quality elements, including planetary health.
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Affiliation(s)
- Miho Yoshizaki
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Jacqueline Ramke
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom.,School of Optometry and Vision Science, University of Auckland, Auckland, New Zealand
| | - Justine H Zhang
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Ada Aghaji
- Department of Ophthalmology, College of Medicine, University of Nigeria, Nsukka, Nigeria
| | - João M Furtado
- Division of Ophthalmology, Ribeirão Preto Medical School, University of São Paulo, São Paulo, Brazil
| | - Helen Burn
- Department of Ophthalmology, Stoke Mandeville Hospital, Aylesbury, United Kingdom
| | - Stephen Gichuhi
- Department of Ophthalmology, University of Nairobi, Nairobi, Kenya
| | - William H Dean
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom.,Department of Ophthalmology, University of Cape Town, Cape Town, South Africa
| | - Nathan Congdon
- Centre for Public Health, Queens University Belfast, Belfast, United Kingdom.,Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China.,Orbis International, New York, USA
| | - Matthew J Burton
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom.,Moorfields Eye Hospital, London, United Kingdom
| | - John Buchan
- International Centre for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
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19
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Mushumbusi E, Buchan J, Mactaggart I, Macleod D, Foster A. A Systematic Review of the Proportion of Blindness in the Population 50 Years and Older from Total Population-Based Surveys of Blindness and Visual Impairment. Ophthalmic Epidemiol 2021; 29:164-170. [PMID: 33944649 DOI: 10.1080/09286586.2021.1918176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Purpose: Epidemiological data is essential for planning; however, all-age population-based surveys are resource intensive. Rapid Assessment of Cataract Surgical Services methodology was developed in India in 1995 and subsequently promoted by the World Health Organisation for use worldwide. The commonly used Rapid Assessment of Avoidable Blindness (RAAB) evolved from this in 2005, constraining surveys to populations aged 50 or more based on the report 'The Epidemiology of Blindness in Nepal' (SEVA, 1988), where 78.7% of blindness occurred in people aged 50+. The purpose of this study is to examine whether more recent total-population-based surveys continue to find a similar proportion of blindness in the population aged 50+.Methods:A systematic literature review identified all population-based surveys of blindness published 1996-2017. Data extraction was undertaken by two independent researchers and compared.Results:The proportions of blindness (presenting visual acuity (PVA) <3/60) and moderate/severe visual impairment (MSVI) (PVA <6/18-3/60) from total population-based surveys in people aged 50+ ranged from 90% (Mali, 1996) to 45.8% (South Korea, 2015); the mean proportions across all surveys were 73.1% (95% CI, 60.4-85.8%) for blindness, and 73.8% (95% CI, 54.8-92.8) for MSVI. No trend over time or association with GDP was identified.Conclusion:This systematic literature review supports the rationale for constraining surveys to the population aged 50+ as this will greatly reduce sample size but still include a high proportion of total cases of blindness; paucity of total population-based surveys highlights the ongoing need for RAAB in service planning internationally.
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Affiliation(s)
- Edmund Mushumbusi
- International Centre for Eye Health, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - John Buchan
- Clinical Research Department, International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Islay Mactaggart
- Clinical Research Department, International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - David Macleod
- Clinical Research Department, International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Allen Foster
- Clinical Research Department, International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
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21
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Dean WH, Buchan J, Gichuhi S, Philippin H, Arunga S, Mukome A, Admassu F, Lewis K, Makupa W, Otiti J, Kim MJ, Macleod D, Cook C, Burton MJ. Simulation-based surgical education for glaucoma versus conventional training alone: the GLAucoma Simulated Surgery (GLASS) trial. A multicentre, multicountry, randomised controlled, investigator-masked educational intervention efficacy trial in Kenya, South Africa, Tanzania, Uganda and Zimbabwe. Br J Ophthalmol 2021; 106:863-869. [PMID: 33495158 PMCID: PMC9132848 DOI: 10.1136/bjophthalmol-2020-318049] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/05/2020] [Accepted: 01/04/2021] [Indexed: 12/26/2022]
Abstract
Background/Aim Glaucoma accounts for 8% of global blindness and surgery remains an important treatment. We aimed to determine the impact of adding simulation-based surgical education for glaucoma. Methods We designed a randomised controlled, parallel-group trial. Those assessing outcomes were masked to group assignment. Fifty-one trainee ophthalmologists from six university training institutions in sub-Saharan Africa were enrolled by inclusion criteria of having performed no surgical trabeculectomies and were randomised. Those randomised to the control group received no placebo intervention, but received the training intervention after the initial 12-month follow-up period. The intervention was an intense simulation-based surgical training course over 1 week. The primary outcome measure was overall simulation surgical competency at 3 months. Results Twenty-five were assigned to the intervention group and 26 to the control group, with 2 dropouts from the intervention group. Forty-nine were included in the final intention-to-treat analysis. Surgical competence at baseline was comparable between the arms. This increased to 30.4 (76.1%) and 9.8 (24.4%) for the intervention and the control group, respectively, 3 months after the training intervention for the intervention group, a difference of 20.6 points (95% CI 18.3 to 22.9, p<0.001). At 1 year, the mean surgical competency score of the intervention arm participants was 28.6 (71.5%), compared with 11.6 (29.0%) for the control (difference 17.0, 95% CI 14.8 to 19.4, p<0.001). Conclusion These results support the pursuit of financial, advocacy and research investments to establish simulation surgery training units and courses including instruction, feedback, deliberate practice and reflection with outcome measurement to enable trainee glaucoma surgeons to engage in intense simulation training for glaucoma surgery. Trial registration number PACTR201803002159198.
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Affiliation(s)
- William H Dean
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK .,Ophthalmology, University of Cape Town Faculty of Health Sciences, Observatory, Western Cape, South Africa
| | - John Buchan
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK
| | - Stephen Gichuhi
- Ophthalmology, University of Nairobi College of Health Sciences, Nairobi, Kenya
| | - Heiko Philippin
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK.,Eye Centre, Faculty of Medicine, University of Freiburg, Freiburg im Breisgau, Baden-Württemberg, Germany
| | - Simon Arunga
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK.,Ophthalmology, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Agrippa Mukome
- University of Zimbabwe College of Health Sciences, Harare, Zimbabwe
| | - Fisseha Admassu
- Department of Ophthalmology, University of Gondar, Gondar, Ethiopia
| | - Karinya Lewis
- Ophthalmology, Salisbury Hospital NHS Foundation Trust, Salisbury, Wiltshire, UK
| | - William Makupa
- Ophthalmology, Kilimanjaro Christian Medical Centre, Moshi, Tanzania, United Republic of
| | - Juliet Otiti
- Ophthalmology, Makerere University Faculty of Medicine, Kampala, Uganda
| | - Min J Kim
- Tropical Epidemiology Group, Faculty of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - David Macleod
- Tropical Epidemiology Group, Faculty of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Colin Cook
- Ophthalmology, University of Cape Town Faculty of Health Sciences, Observatory, Western Cape, South Africa
| | - Matthew J Burton
- International Centre for Eye Health, Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, UK.,Moorfields Eye Hospital NHS Foundation Trust, London, UK
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22
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Sala-Hamrick KJ, Isakson B, De Gonzalez SDC, Cooper A, Buchan J, Aceves J, Van Orton E, Holtz J, Waggoner DM. Trauma-Informed Pediatric Primary Care: Facilitators and Challenges to the Implementation Process. J Behav Health Serv Res 2021; 48:363-381. [DOI: 10.1007/s11414-020-09741-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2020] [Indexed: 11/30/2022]
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Yoshizaki M, Ramke J, Furtado JM, Burn H, Gichuhi S, Gordon I, Aghaji A, Marques AP, Dean WH, Congdon N, Buchan J, Burton MJ. Interventions to improve the quality of cataract services: protocol for a global scoping review. BMJ Open 2020; 10:e036413. [PMID: 32788187 PMCID: PMC7422650 DOI: 10.1136/bmjopen-2019-036413] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 04/15/2020] [Accepted: 04/23/2020] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Cataract is the leading cause of blindness globally and a major cause of vision impairment. Cataract surgery is an efficacious intervention that usually restores vision. Although it is one of the most commonly conducted surgical interventions worldwide, good quality services (from being detected with operable cataract to undergoing surgery and receiving postoperative care) are not universally accessible. Poor quality understandably reduces the willingness of people with operable cataract to undergo surgery. Therefore, it is critical to improve the quality of care to subsequently reduce vision loss from cataract. This scoping review aims to summarise the nature and extent of the published literature on interventions to improve the quality of services for primary age-related cataract globally. METHODS AND ANALYSIS We will search MEDLINE, Embase and Global Health for peer-reviewed manuscripts published since 1990, with no language, geographic or study design restrictions. To define quality, we have used the elements adopted by the WHO-effectiveness, safety, people-centredness, timeliness, equity, integration and efficiency-to which we have added the element of planetary health. We will exclude studies focused on the technical aspects of the surgical procedure and studies that only involve children (<18 years). Two reviewers will screen all titles/abstracts independently, followed by a full-text review of potentially relevant articles. For included articles, data regarding publication characteristics, study details and quality-related outcomes will be extracted by two reviewers independently. Results will be synthesised narratively and presented visually using a spider chart. ETHICS AND DISSEMINATION Ethical approval was not sought, as our review will only include published and publicly accessible information. We will publish our findings in an open-access peer-reviewed journal and develop an accessible summary of the results for website posting. A summary of the results will be included in the ongoing Lancet Global Health Commission on Global Eye Health. REGISTRATION DETAILS Open Science Framework (https://osf.io/8gktz).
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Affiliation(s)
- Miho Yoshizaki
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Jacqueline Ramke
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
- School of Optometry and Vision Science, The University of Auckland, Auckland, New Zealand
| | - João M Furtado
- Division of Ophthalmology, Universidade de São Paulo, Faculdade de Medicina de Ribeirão Preto, Ribeirao Preto, São Paulo, Brazil
| | - Helen Burn
- Department of Ophthalmology, Stoke Mandeville Hospital, Aylesbury, Buckinghamshire, UK
| | - Stephen Gichuhi
- Department of Ophthalmology, University of Nairobi, Nairobi, Kenya
| | - Iris Gordon
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Ada Aghaji
- Department of Ophthalmology, University of Nigeria, Nsukka, Enugu, Nigeria
| | - Ana P Marques
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - William H Dean
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
- Department of Ophthalmology, University of Cape Town, Rondebosch, Western Cape, South Africa
| | - Nathan Congdon
- Centre for Public Health, Queen's University Belfast, Belfast, UK
- Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - John Buchan
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Matthew J Burton
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
- Moorfields Eye Hospital, London, UK
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Kaup S, Shivalli S, Ajjinicanda Ganapathi C, Arunachalam C, Buchan J, Kumar Pandey S, Prasad Kudlu K. Does the phaco TIp position during clear corneal Phacoemulsification Surgery adversely affect corneal endothelium? TIPS study protocol for a randomised, triple-masked, parallel-group trial of bevel-up versus bevel-down phacoemulsification. Wellcome Open Res 2020. [DOI: 10.12688/wellcomeopenres.16098.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Introduction: Globally, at least 30 million cataract surgeries are required annually to prevent cataract-related blindness. Corneal endothelial decompensation is one of the most common causes of poor visual outcome following cataract surgery, particularly in those with predisposing factors. The increasing ageing population and reduced visual impairment threshold for cataract surgery have resulted in rising cataract surgical rates and hence, an increase in corneal endothelial decompensation is expected. The role of phaco tip position on corneal endothelial damage is ambiguous. Previous studies have reported contradictory results and were also underpowered to detect a significant difference due to small sample sizes. With no consensus regarding the most cornea-friendly phaco tip position (bevel-up versus bevel-down) during phacoemulsification, we propose a randomised clinical trial with a robust design using direct chop phaco-technique. Objective: To compare the effect of phaco tip position (bevel-up vs. bevel-down) on corneal endothelial cell count during phacoemulsification. Methods: A randomised, multicentre, parallel-group, triple-masked (participant, outcome assessor, and statistician) trial with 1:1 allocation ratio is proposed. By adopting stratified randomisation (according to cataract grade), we will randomly allocate 480 patients aged >18 years with immature cataract into bevel-up and bevel-down groups at two centres. History of significant ocular trauma, previous intraocular surgery, shallow anterior chamber, low endothelial cell count, pseudoexfoliation syndrome, intraocular inflammation, and corneal endothelial dystrophy are the key exclusion criteria. The primary outcome is postoperative endothelial cell count at one month. Secondary outcomes are central corneal thickness on postoperative days 1, 15, and 30, and intraoperative complications. Trial registration: Clinical Trial Registry of India CTRI/2019/02/017464 (05/02/2019).
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Dean W, Gichuhi S, Buchan J, Matende I, Graham R, Kim M, Arunga S, Makupa W, Cook C, Visser L, Burton M. Survey of ophthalmologists-in-training in Eastern, Central and Southern Africa: A regional focus on ophthalmic surgical education. Wellcome Open Res 2019; 4:187. [PMID: 31886411 PMCID: PMC6913214 DOI: 10.12688/wellcomeopenres.15580.1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/21/2019] [Indexed: 11/20/2022] Open
Abstract
Background: There are 2.7 ophthalmologists per million population in sub-Saharan Africa, and a need to train more. We sought to analyse current surgical training practice and experience of ophthalmologists to inform planning of training in Eastern, Central and Southern Africa. Methods: This was a cross-sectional survey. Potential participants included all current trainee and recent graduate ophthalmologists in the Eastern, Central and Southern African region. A link to a web-based questionnaire was sent to all heads of eye departments and training programme directors of ophthalmology training institutions in Eastern, Central and Southern Africa, who forwarded to all their trainees and recent graduates. Main outcome measures were quantitative and qualitative survey responses. Results: Responses were obtained from 124 (52%) trainees in the region. Overall level of satisfaction with ophthalmology training programmes was rated as 'somewhat satisfied' or 'very satisfied' by 72%. Most frequent intended career choice was general ophthalmology, with >75% planning to work in their home country post-graduation. A quarter stated a desire to mainly work in private practice. Only 28% of junior (first and second year) trainees felt surgically confident in manual small incision cataract surgery (SICS); this increased to 84% among senior trainees and recent graduates. The median number of cataract surgeries performed by junior trainees was zero. 57% of senior trainees were confident in performing an anterior vitrectomy. Only 29% of senior trainees and 64% of recent graduates were confident in trabeculectomy. The mean number of cataract procedures performed by senior trainees was 84 SICS (median 58) and 101 phacoemulsification (median 0). Conclusion: Satisfaction with post-graduate ophthalmology training in the region was fair. Most junior trainees experience limited cataract surgical training in the first two years. Focused efforts on certain aspects of surgical education should be made to ensure adequate opportunities are offered earlier on in ophthalmology training.
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Affiliation(s)
- William Dean
- International Centre for Eye Health (ICEH), Clinical Research Department Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, WC1E7HT, UK
- Department of Ophthalmology, University of Cape Town, Cape Town, South Africa
| | - Stephen Gichuhi
- Department of Ophthalmology, University of Nairobi, Nairobi, Kenya
| | - John Buchan
- International Centre for Eye Health (ICEH), Clinical Research Department Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, WC1E7HT, UK
| | - Ibrahim Matende
- College of Ophthalmology of Eastern Central & Southern Africa, Nairobi, Kenya
| | - Ronnie Graham
- International Agency for the Prevention of Blindness, Durban, South Africa
| | - Min Kim
- Tropical Epidemiology Group, Faculty of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
| | - Simon Arunga
- International Centre for Eye Health (ICEH), Clinical Research Department Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, WC1E7HT, UK
| | | | - Colin Cook
- Department of Ophthalmology, University of Cape Town, Cape Town, South Africa
| | - Linda Visser
- Department of Ophthalmology, University of KwaZulu-Natal, Durban, South Africa
| | - Matthew Burton
- International Centre for Eye Health (ICEH), Clinical Research Department Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, WC1E7HT, UK
- Moorfields Eye Hospital NHS Foundation Trust, London, UK
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26
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Dean WH, Buchan J, Admassu F, Kim MJ, Golnik KC, McNaught A, Burton M. Ophthalmic simulated surgical competency assessment rubric (Sim-OSSCAR) for trabeculectomy. BMJ Open Ophthalmol 2019; 4:e000313. [PMID: 31523718 PMCID: PMC6711460 DOI: 10.1136/bmjophth-2019-000313] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 07/31/2019] [Accepted: 08/03/2019] [Indexed: 01/28/2023] Open
Abstract
Background/aims To develop, test and determine whether a surgical-competency assessment tool for simulated glaucoma surgery is valid. Methods The trabeculectomy ophthalmic simulated surgical competency assessment rubric (Sim-OSSCAR) was assessed for face and content validity with a large international group of expert eye surgeons. Cohorts of novice and competent surgeons were invited to perform anonymised simulation trabeculectomy surgery, which was marked using the Sim-OSSCAR in a masked fashion by a panel of four expert surgeons. Construct validity was assessed using a Wilcoxon rank-sum test. Krippendorff’s alpha was calculated for interobserver reliability. Results For the Sim-OSSCAR for trabeculectomy, 58 of 67 surgeons (86.6%) either agreed or strongly agreed that the Sim-OSSCAR is an appropriate way to assess trainees’ surgical skill. Face validity was rated as 4.04 (out of 5.00). Fifty-seven of 71 surgeons (80.3%) either agreed or strongly agreed that the Sim-OSSCAR contents represented the surgical technique of surgical trabeculectomy. Content validity was rated as 4.00. Wilcoxon rank-sum test showed that competent surgeons perform better than novices (p=0.02). Interobserver reliability was rated >0.60 (Krippendorff’s alpha) in 19 of 20 steps of the Sim-OSSCAR. Conclusion The Sim-OSSCAR for trabeculectomy, a newly developed and validated assessment tool for simulation glaucoma surgery, has validity and reliability. It has the potential to play a useful role in ophthalmic surgical education.
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Affiliation(s)
- William H Dean
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK.,Division of Ophthalmology, University of Cape Town, Cape Town, South Africa
| | - John Buchan
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Fisseha Admassu
- Ophthalmology, Gondar College of Medical Sciences, Gondar, Ethiopia
| | - Min J Kim
- Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, UK
| | - Karl C Golnik
- International Council of Ophthalmology, San Francisco, California, USA
| | - Andrew McNaught
- Ophthalmology, Gloucestershire Hospitals NHS Foundation Trust, Cheltenham, UK
| | - Matthew Burton
- International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK.,Moorfields Eye Hospital, London, United Kingdom
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27
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Melgar MY, Buchan J. Managing cataract surgery in patients with small pupils. Community Eye Health 2019; 31:84-85. [PMID: 31086437 PMCID: PMC6390510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
| | - John Buchan
- Ophthalmologist: International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
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28
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Benjamin L, Yorston D, Buchan J. Managing errors in the eye unit. Community Eye Health 2019; 32:26-27. [PMID: 31649424 PMCID: PMC6802470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Larry Benjamin
- Consultant Ophthalmologist: Stoke Mandeville Hospital, Aylesbury, UK
| | - David Yorston
- Consultant Ophthalmologist: Tennent Institute of Ophthalmology, Gartnavel Hospital, Glasgow, Scotland, UK
| | - John Buchan
- Consultant Ophthalmologist: International Centre for Eye Health, London School of Hygiene and Tropical Medicine, UK
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29
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Buchan J, Verma S. Managing and preparing for eye emergencies. Community Eye Health 2018; 31:57. [PMID: 30487678 PMCID: PMC6253319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- John Buchan
- Consultant Ophthalmologist: International Centre for Eye Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Seema Verma
- Consultant Ophthalmologist and President of the British Emergency Eye Care Society, London, UK
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Vohra RS, Pasquali S, Kirkham AJ, Marriott P, Johnstone M, Spreadborough P, Alderson D, Griffiths EA, Fenwick S, Elmasry M, Nunes Q, Kennedy D, Basit Khan R, Khan MAS, Magee CJ, Jones SM, Mason D, Parappally CP, Mathur P, Saunders M, Jamel S, Ul Haque S, Zafar S, Shiwani MH, Samuel N, Dar F, Jackson A, Lovett B, Dindyal S, Winter H, Fletcher T, Rahman S, Wheatley K, Nieto T, Ayaani S, Youssef H, Nijjar RS, Watkin H, Naumann D, Emeshi S, Sarmah PB, Lee K, Joji N, Heath J, Teasdale RL, Weerasinghe C, Needham PJ, Welbourn H, Forster L, Finch D, Blazeby JM, Robb W, McNair AGK, Hrycaiczuk A, Charalabopoulos A, Kadirkamanathan S, Tang CB, Jayanthi NVG, Noor N, Dobbins B, Cockbain AJ, Nilsen-Nunn A, Siqueira J, Pellen M, Cowley JB, Ho WM, Miu V, White TJ, Hodgkins KA, Kinghorn A, Tutton MG, Al-Abed YA, Menzies D, Ahmad A, Reed J, Khan S, Monk D, Vitone LJ, Murtaza G, Joel A, Brennan S, Shier D, Zhang C, Yoganathan T, Robinson SJ, McCallum IJD, Jones MJ, Elsayed M, Tuck L, Wayman J, Carney K, Aroori S, Hosie KB, Kimble A, Bunting DM, Fawole AS, Basheer M, Dave RV, Sarveswaran J, Jones E, Kendal C, Tilston MP, Gough M, Wallace T, Singh S, Downing J, Mockford KA, Issa E, Shah N, Chauhan N, Wilson TR, Forouzanfar A, Wild JRL, Nofal E, Bunnell C, Madbak K, Rao STV, Devoto L, Siddiqi N, Khawaja Z, Hewes JC, Gould L, Chambers A, Urriza Rodriguez D, Sen G, Robinson S, Carney K, Bartlett F, Rae DM, Stevenson TEJ, Sarvananthan K, Dwerryhouse SJ, Higgs SM, Old OJ, Hardy TJ, Shah R, Hornby ST, Keogh K, Frank L, Al-Akash M, Upchurch EA, Frame RJ, Hughes M, Jelley C, Weaver S, Roy S, Sillo TO, Galanopoulos G, Cuming T, Cunha P, Tayeh S, Kaptanis S, Heshaishi M, Eisawi A, Abayomi M, Ngu WS, Fleming K, Singh Bajwa D, Chitre V, Aryal K, Ferris P, Silva M, Lammy S, Mohamed S, Khawaja A, Hussain A, Ghazanfar MA, Bellini MI, Ebdewi H, Elshaer M, Gravante G, Drake B, Ogedegbe A, Mukherjee D, Arhi C, Giwa Nusrat Iqbal L, Watson NF, Kumar Aggarwal S, Orchard P, Villatoro E, Willson PD, Wa K, Mok J, Woodman T, Deguara J, Garcea G, Babu BI, Dennison AR, Malde D, Lloyd D, Satheesan S, Al-Taan O, Boddy A, Slavin JP, Jones RP, Ballance L, Gerakopoulos S, Jambulingam P, Mansour S, Sakai N, Acharya V, Sadat MM, Karim L, Larkin D, Amin K, Khan A, Law J, Jamdar S, Smith SR, Sampat K, M O'shea K, Manu M, Asprou FM, Malik NS, Chang J, Johnstone M, Lewis M, Roberts GP, Karavadra B, Photi E, Hewes J, Gould L, Chambers A, Rodriguez D, O'Reilly DA, Rate AJ, Sekhar H, Henderson LT, Starmer BZ, Coe PO, Tolofari S, Barrie J, Bashir G, Sloane J, Madanipour S, Halkias C, Trevatt AEJ, Borowski DW, Hornsby J, Courtney MJ, Virupaksha S, Seymour K, Robinson S, Hawkins H, Bawa S, Gallagher PV, Reid A, Wood P, Finch JG, Parmar J, Stirland E, Gardner-Thorpe J, Al-Muhktar A, Peterson M, Majeed A, Bajwa FM, Martin J, Choy A, Tsang A, Pore N, Andrew DR, Al-Khyatt W, Taylor C, Bhandari S, Chambers A, Subramanium D, Toh SKC, Carter NC, Mercer SJ, Knight B, Tate S, Pearce B, Wainwright D, Vijay V, Alagaratnam S, Sinha S, Khan S, El-Hasani SS, Hussain AA, Bhattacharya V, Kansal N, Fasih T, Jackson C, Siddiqui MN, Chishti IA, Fordham IJ, Siddiqui Z, Bausbacher H, Geogloma I, Gurung K, Tsavellas G, Basynat P, Kiran Shrestha A, Basu S, Chhabra Mohan Harilingam A, Rabie M, Akhtar M, Kumar P, Jafferbhoy SF, Hussain N, Raza S, Haque M, Alam I, Aseem R, Patel S, Asad M, Booth MI, Ball WR, Wood CPJ, Pinho-Gomes AC, Kausar A, Rami Obeidallah M, Varghase J, Lodhia J, Bradley D, Rengifo C, Lindsay D, Gopalswamy S, Finlay I, Wardle S, Bullen N, Iftikhar SY, Awan A, Ahmed J, Leeder P, Fusai G, Bond-Smith G, Psica A, Puri Y, Hou D, Noble F, Szentpali K, Broadhurst J, Date R, Hossack MR, Li Goh Y, Turner P, Shetty V, Riera M, Macano CAW, Sukha A, Preston SR, Hoban JR, Puntis DJ, Williams SV, Krysztopik R, Kynaston J, Batt J, Doe M, Goscimski A, Jones GH, Smith SR, Hall C, Carty N, Ahmed J, Panteleimonitis S, Gunasekera RT, Sheel ARG, Lennon H, Hindley C, Reddy M, Kenny R, Elkheir N, McGlone ER, Rajaganeshan R, Hancorn K, Hargreaves A, Prasad R, Longbotham DA, Vijayanand D, Wijetunga I, Ziprin P, Nicolay CR, Yeldham G, Read E, Gossage JA, Rolph RC, Ebied H, Phull M, Khan MA, Popplewell M, Kyriakidis D, Hussain A, Henley N, Packer JR, Derbyshire L, Porter J, Appleton S, Farouk M, Basra M, Jennings NA, Ali S, Kanakala V, Ali H, Lane R, Dickson-Lowe R, Zarsadias P, Mirza D, Puig S, Al Amari K, Vijayan D, Sutcliffe R, Marudanayagam R, Hamady Z, Prasad AR, Patel A, Durkin D, Kaur P, Bowen L, Byrne JP, Pearson KL, Delisle TG, Davies J, Tomlinson MA, Johnpulle MA, Slawinski C, Macdonald A, Nicholson J, Newton K, Mbuvi J, Farooq A, Sidhartha Mothe B, Zafrani Z, Brett D, Francombe J, Spreadborough P, Barnes J, Cheung M, Al-Bahrani AZ, Preziosi G, Urbonas T, Alberts J, Mallik M, Patel K, Segaran A, Doulias T, Sufi PA, Yao C, Pollock S, Manzelli A, Wajed S, Kourkulos M, Pezzuto R, Wadley M, Hamilton E, Jaunoo S, Padwick R, Sayegh M, Newton RC, Hebbar M, Farag SF, Spearman J, Hamdan MF, D'Costa C, Blane C, Giles M, Peter MB, Hirst NA, Hossain T, Pannu A, El-Dhuwaib Y, Morrison TEM, Taylor GW, Thompson RLE, McCune K, Loughlin P, Lawther R, Byrnes CK, Simpson DJ, Mawhinney A, Warren C, McKay D, McIlmunn C, Martin S, MacArtney M, Diamond T, Davey P, Jones C, Clements JM, Digney R, Chan WM, McCain S, Gull S, Janeczko A, Dorrian E, Harris A, Dawson S, Johnston D, McAree B, Ghareeb E, Thomas G, Connelly M, McKenzie S, Cieplucha K, Spence G, Campbell W, Hooks G, Bradley N, Hill ADK, Cassidy JT, Boland M, Burke P, Nally DM, Hill ADK, Khogali E, Shabo W, Iskandar E, McEntee GP, O'Neill MA, Peirce C, Lyons EM, O'Sullivan AW, Thakkar R, Carroll P, Ivanovski I, Balfe P, Lee M, Winter DC, Kelly ME, Hoti E, Maguire D, Karunakaran P, Geoghegan JG, Martin ST, McDermott F, Cross KS, Cooke F, Zeeshan S, Murphy JO, Mealy K, Mohan HM, Nedujchelyn Y, Fahad Ullah M, Ahmed I, Giovinazzo F, Milburn J, Prince S, Brooke E, Buchan J, Khalil AM, Vaughan EM, Ramage MI, Aldridge RC, Gibson S, Nicholson GA, Vass DG, Grant AJ, Holroyd DJ, Jones MA, Sutton CMLR, O'Dwyer P, Nilsson F, Weber B, Williamson TK, Lalla K, Bryant A, Carter CR, Forrest CR, Hunter DI, Nassar AH, Orizu MN, Knight K, Qandeel H, Suttie S, Belding R, McClarey A, Boyd AT, Guthrie GJK, Lim PJ, Luhmann A, Watson AJM, Richards CH, Nicol L, Madurska M, Harrison E, Boyce KM, Roebuck A, Ferguson G, Pati P, Wilson MSJ, Dalgaty F, Fothergill L, Driscoll PJ, Mozolowski KL, Banwell V, Bennett SP, Rogers PN, Skelly BL, Rutherford CL, Mirza AK, Lazim T, Lim HCC, Duke D, Ahmed T, Beasley WD, Wilkinson MD, Maharaj G, Malcolm C, Brown TH, Shingler GM, Mowbray N, Radwan R, Morcous P, Wood S, Kadhim A, Stewart DJ, Baker AL, Tanner N, Shenoy H, Hafiz S, Marchi JA, Singh-Ranger D, Hisham E, Ainley P, O'Neill S, Terrace J, Napetti S, Hopwood B, Rhys T, Downing J, Kanavati O, Coats M, Aleksandrov D, Kallaway C, Yahya S, Weber B, Templeton A, Trotter M, Lo C, Dhillon A, Heywood N, Aawsaj Y, Hamdan A, Reece-Bolton O, McGuigan A, Shahin Y, Ali A, Luther A, Nicholson JA, Rajendran I, Boal M, Ritchie J. Population-based cohort study of variation in the use of emergency cholecystectomy for benign gallbladder diseases. Br J Surg 2016; 103:1716-1726. [PMID: 27748962 DOI: 10.1002/bjs.10288] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 06/21/2016] [Accepted: 07/06/2016] [Indexed: 01/05/2023]
Abstract
Abstract
Background
The aims of this prospective population-based cohort study were to identify the patient and hospital characteristics associated with emergency cholecystectomy, and the influences of these in determining variations between hospitals.
Methods
Data were collected for consecutive patients undergoing cholecystectomy in acute UK and Irish hospitals between 1 March and 1 May 2014. Potential explanatory variables influencing the performance of emergency cholecystectomy were analysed by means of multilevel, multivariable logistic regression modelling using a two-level hierarchical structure with patients (level 1) nested within hospitals (level 2).
Results
Data were collected on 4744 cholecystectomies from 165 hospitals. Increasing age, lower ASA fitness grade, biliary colic, the need for further imaging (magnetic retrograde cholangiopancreatography), endoscopic interventions (endoscopic retrograde cholangiopancreatography) and admission to a non-biliary centre significantly reduced the likelihood of an emergency cholecystectomy being performed. The multilevel model was used to calculate the probability of receiving an emergency cholecystectomy for a woman aged 40 years or over with an ASA grade of I or II and a BMI of at least 25·0 kg/m2, who presented with acute cholecystitis with an ultrasound scan showing a thick-walled gallbladder and a normal common bile duct. The mean predicted probability of receiving an emergency cholecystectomy was 0·52 (95 per cent c.i. 0·45 to 0·57). The predicted probabilities ranged from 0·02 to 0·95 across the 165 hospitals, demonstrating significant variation between hospitals.
Conclusion
Patients with similar characteristics presenting to different hospitals with acute gallbladder pathology do not receive comparable care.
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Affiliation(s)
| | - R S Vohra
- Trent Oesophago-Gastric Unit, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - S Pasquali
- Surgical Oncology Unit, Veneto Institute of Oncology IOV-IRCCS, Padova, Italy
| | - A J Kirkham
- Cancer Research UK Clinical Trials Unit, University of Birmingham, Birmingham, UK
| | - P Marriott
- West Midlands Research Collaborative, Academic Department of Surgery, University of Birmingham, Birmingham, UK
| | - M Johnstone
- West Midlands Research Collaborative, Academic Department of Surgery, University of Birmingham, Birmingham, UK
| | - P Spreadborough
- West Midlands Research Collaborative, Academic Department of Surgery, University of Birmingham, Birmingham, UK
| | - D Alderson
- Academic Department of Surgery, University of Birmingham, Birmingham, UK
| | - E A Griffiths
- Department of Upper Gastrointestinal Surgery, University Hospitals Birmingham NHS Foundation Trust, Birmingham, UK
| | - S Fenwick
- Aintree University Hospital NHS Foundation Trust
| | - M Elmasry
- Aintree University Hospital NHS Foundation Trust
| | - Q Nunes
- Aintree University Hospital NHS Foundation Trust
| | - D Kennedy
- Aintree University Hospital NHS Foundation Trust
| | | | | | | | | | - D Mason
- Wirral University Teaching Hospital
| | | | | | | | - S Jamel
- Barnet and Chase Farm Hospital
| | | | - S Zafar
- Barnet and Chase Farm Hospital
| | | | - N Samuel
- Barnsley District General Hospital
| | - F Dar
- Barnsley District General Hospital
| | | | | | | | | | | | | | - K Wheatley
- Sandwell and West Birmingham Hospitals NHS Trust
| | - T Nieto
- Sandwell and West Birmingham Hospitals NHS Trust
| | - S Ayaani
- Sandwell and West Birmingham Hospitals NHS Trust
| | - H Youssef
- Heart of England Foundation NHS Trust
| | | | - H Watkin
- Heart of England Foundation NHS Trust
| | - D Naumann
- Heart of England Foundation NHS Trust
| | - S Emeshi
- Heart of England Foundation NHS Trust
| | | | - K Lee
- Heart of England Foundation NHS Trust
| | - N Joji
- Heart of England Foundation NHS Trust
| | - J Heath
- Blackpool Teaching Hospitals NHS Foundation Trust
| | - R L Teasdale
- Blackpool Teaching Hospitals NHS Foundation Trust
| | | | - P J Needham
- Bradford Teaching Hospitals NHS Foundation Trust
| | - H Welbourn
- Bradford Teaching Hospitals NHS Foundation Trust
| | - L Forster
- Bradford Teaching Hospitals NHS Foundation Trust
| | - D Finch
- Bradford Teaching Hospitals NHS Foundation Trust
| | | | - W Robb
- University Hospitals Bristol NHS Trust
| | | | | | | | | | | | | | | | - B Dobbins
- Calderdale and Huddersfield NHS Trust
| | | | | | | | - M Pellen
- Hull and East Yorkshire NHS Trust
| | | | - W-M Ho
- Hull and East Yorkshire NHS Trust
| | - V Miu
- Hull and East Yorkshire NHS Trust
| | - T J White
- Chesterfield Royal Hospital NHS Foundation Trust
| | - K A Hodgkins
- Chesterfield Royal Hospital NHS Foundation Trust
| | - A Kinghorn
- Chesterfield Royal Hospital NHS Foundation Trust
| | - M G Tutton
- Colchester Hospital University NHS Foundation Trust
| | - Y A Al-Abed
- Colchester Hospital University NHS Foundation Trust
| | - D Menzies
- Colchester Hospital University NHS Foundation Trust
| | - A Ahmad
- Colchester Hospital University NHS Foundation Trust
| | - J Reed
- Colchester Hospital University NHS Foundation Trust
| | - S Khan
- Colchester Hospital University NHS Foundation Trust
| | - D Monk
- Countess of Chester NHS Foundation Trust
| | - L J Vitone
- Countess of Chester NHS Foundation Trust
| | - G Murtaza
- Countess of Chester NHS Foundation Trust
| | - A Joel
- Countess of Chester NHS Foundation Trust
| | | | - D Shier
- Croydon Health Services NHS Trust
| | - C Zhang
- Croydon Health Services NHS Trust
| | | | | | | | - M J Jones
- North Cumbria University Hospitals Trust
| | - M Elsayed
- North Cumbria University Hospitals Trust
| | - L Tuck
- North Cumbria University Hospitals Trust
| | - J Wayman
- North Cumbria University Hospitals Trust
| | - K Carney
- North Cumbria University Hospitals Trust
| | | | | | | | | | | | | | | | | | | | | | - M P Tilston
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - M Gough
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - T Wallace
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - S Singh
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - J Downing
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - K A Mockford
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - E Issa
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - N Shah
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - N Chauhan
- Northern Lincolnshire and Goole NHS Foundation Trust
| | - T R Wilson
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - A Forouzanfar
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - J R L Wild
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - E Nofal
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - C Bunnell
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - K Madbak
- Doncaster and Bassetlaw Hospitals NHS Foundation Trust
| | - S T V Rao
- Dorset County Hospital NHS Foundation Trust
| | - L Devoto
- Dorset County Hospital NHS Foundation Trust
| | - N Siddiqi
- Dorset County Hospital NHS Foundation Trust
| | - Z Khawaja
- Dorset County Hospital NHS Foundation Trust
| | | | | | | | | | | | | | | | | | - D M Rae
- Frimley Park Hospital NHS Trust
| | | | | | | | | | - O J Old
- Gloucestershire Hospitals NHS Trust
| | | | - R Shah
- Gloucestershire Hospitals NHS Trust
| | | | - K Keogh
- Gloucestershire Hospitals NHS Trust
| | - L Frank
- Gloucestershire Hospitals NHS Trust
| | - M Al-Akash
- Great Western Hospitals NHS Foundation Trust
| | | | - R J Frame
- Harrogate and District NHS Foundation Trust
| | - M Hughes
- Harrogate and District NHS Foundation Trust
| | - C Jelley
- Harrogate and District NHS Foundation Trust
| | | | | | | | | | - T Cuming
- Homerton University Hospital NHS Trust
| | - P Cunha
- Homerton University Hospital NHS Trust
| | - S Tayeh
- Homerton University Hospital NHS Trust
| | | | | | - A Eisawi
- Tees Hospitals NHS Foundation Trust
| | | | - W S Ngu
- Tees Hospitals NHS Foundation Trust
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- Paget University Hospitals NHS Foundation Trust
| | - K Aryal
- Paget University Hospitals NHS Foundation Trust
| | - P Ferris
- Paget University Hospitals NHS Foundation Trust
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- Kettering General Hospital NHS Foundation Trust
| | - M Elshaer
- Kettering General Hospital NHS Foundation Trust
| | - G Gravante
- Kettering General Hospital NHS Foundation Trust
| | - B Drake
- Kettering General Hospital NHS Foundation Trust
| | - A Ogedegbe
- Barking, Havering and Redbridge University Hospitals NHS Trust
| | - D Mukherjee
- Barking, Havering and Redbridge University Hospitals NHS Trust
| | - C Arhi
- Barking, Havering and Redbridge University Hospitals NHS Trust
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- Kingston Hospital NHS Foundation Trust
| | - J Mok
- Kingston Hospital NHS Foundation Trust
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- Kingston Hospital NHS Foundation Trust
| | - J Deguara
- Kingston Hospital NHS Foundation Trust
| | - G Garcea
- University Hospitals of Leicester NHS Trust
| | - B I Babu
- University Hospitals of Leicester NHS Trust
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- University Hospitals of Leicester NHS Trust
| | - D Lloyd
- University Hospitals of Leicester NHS Trust
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- University Hospitals of Leicester NHS Trust
| | - A Boddy
- University Hospitals of Leicester NHS Trust
| | - J P Slavin
- Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust
| | - R P Jones
- Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust
| | - L Ballance
- Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust
| | - S Gerakopoulos
- Leighton Hospital, Mid Cheshire Hospitals NHS Foundation Trust
| | - P Jambulingam
- Luton and Dunstable University Hospital NHS Foundation Trust
| | - S Mansour
- Luton and Dunstable University Hospital NHS Foundation Trust
| | - N Sakai
- Luton and Dunstable University Hospital NHS Foundation Trust
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- Luton and Dunstable University Hospital NHS Foundation Trust
| | - M M Sadat
- Macclesfield District General Hospital
| | - L Karim
- Macclesfield District General Hospital
| | - D Larkin
- Macclesfield District General Hospital
| | - K Amin
- Macclesfield District General Hospital
| | - A Khan
- Central Manchester NHS Foundation Trust
| | - J Law
- Central Manchester NHS Foundation Trust
| | - S Jamdar
- Central Manchester NHS Foundation Trust
| | - S R Smith
- Central Manchester NHS Foundation Trust
| | - K Sampat
- Central Manchester NHS Foundation Trust
| | | | - M Manu
- Royal Wolverhampton Hospitals NHS Trust
| | | | - N S Malik
- Royal Wolverhampton Hospitals NHS Trust
| | - J Chang
- Royal Wolverhampton Hospitals NHS Trust
| | | | - M Lewis
- Norfolk and Norwich University Hospitals NHS Foundation Trust
| | - G P Roberts
- Norfolk and Norwich University Hospitals NHS Foundation Trust
| | - B Karavadra
- Norfolk and Norwich University Hospitals NHS Foundation Trust
| | - E Photi
- Norfolk and Norwich University Hospitals NHS Foundation Trust
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- North Tees and Hartlepool NHS Foundation Trust
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- Northumbria Healthcare NHS Foundation Trust
| | - S Robinson
- Northumbria Healthcare NHS Foundation Trust
| | - H Hawkins
- Northumbria Healthcare NHS Foundation Trust
| | - S Bawa
- Northumbria Healthcare NHS Foundation Trust
| | | | - A Reid
- Northumbria Healthcare NHS Foundation Trust
| | - P Wood
- Northumbria Healthcare NHS Foundation Trust
| | - J G Finch
- Northampton General Hospital NHS Trust
| | - J Parmar
- Northampton General Hospital NHS Trust
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- Sheffield Teaching Hospitals NHS Foundation Trust
| | - M Peterson
- Sheffield Teaching Hospitals NHS Foundation Trust
| | - A Majeed
- Sheffield Teaching Hospitals NHS Foundation Trust
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- Peterborough City Hospital
| | | | - N Pore
- United Lincolnshire Hospitals NHS Trust
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- United Lincolnshire Hospitals NHS Trust
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- Portsmouth Hospitals NHS Trust
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- The Princess Alexandra Hospital NHS Trust
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- The Princess Alexandra Hospital NHS Trust
| | - S Khan
- The Princess Alexandra Hospital NHS Trust
| | | | - A A Hussain
- King's College Hospital NHS Foundation Trust
| | | | - N Kansal
- Gateshead Health NHS Foundation Trust
| | - T Fasih
- Gateshead Health NHS Foundation Trust
| | - C Jackson
- Gateshead Health NHS Foundation Trust
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- Queen Elizabeth Hospital NHS Trust
| | - G Tsavellas
- East Kent Hospitals University NHS Foundation Trust
| | - P Basynat
- East Kent Hospitals University NHS Foundation Trust
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- East Kent Hospitals University NHS Foundation Trust
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- East Kent Hospitals University NHS Foundation Trust
| | - M Akhtar
- East Kent Hospitals University NHS Foundation Trust
| | - P Kumar
- Burton Hospitals NHS Foundation Trust
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- Burton Hospitals NHS Foundation Trust
| | - S Raza
- Burton Hospitals NHS Foundation Trust
| | - M Haque
- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
| | - I Alam
- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
| | - R Aseem
- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
| | - S Patel
- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
| | - M Asad
- Royal Albert Edward Infirmary, Wigan Wrightington and Leigh NHS Trust
| | - M I Booth
- Royal Berkshire NHS Foundation Trust
| | - W R Ball
- Royal Berkshire NHS Foundation Trust
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- Royal Bolton Hospital NHS Foundation Trust
| | - J Lodhia
- Royal Bolton Hospital NHS Foundation Trust
| | - D Bradley
- Royal Bolton Hospital NHS Foundation Trust
| | - C Rengifo
- Royal Bolton Hospital NHS Foundation Trust
| | - D Lindsay
- Royal Bolton Hospital NHS Foundation Trust
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- Royal Derby NHS Foundation Trust
| | - J Ahmed
- Royal Derby NHS Foundation Trust
| | - P Leeder
- Royal Derby NHS Foundation Trust
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- Hampshire Hospital NHS Foundation Trust
| | - F Noble
- Hampshire Hospital NHS Foundation Trust
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- Lancashire Teaching Hospitals NHS Foundation Trust
| | - M R Hossack
- Lancashire Teaching Hospitals NHS Foundation Trust
| | - Y Li Goh
- Lancashire Teaching Hospitals NHS Foundation Trust
| | - P Turner
- Lancashire Teaching Hospitals NHS Foundation Trust
| | - V Shetty
- Lancashire Teaching Hospitals NHS Foundation Trust
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- Royal Surrey County Hospital NHS Foundation Trust
| | - J R Hoban
- Royal Surrey County Hospital NHS Foundation Trust
| | - D J Puntis
- Royal Surrey County Hospital NHS Foundation Trust
| | - S V Williams
- Royal Surrey County Hospital NHS Foundation Trust
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- Royal United Hospital Bath NHS Trust
| | - M Doe
- Royal United Hospital Bath NHS Trust
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- Salford Royal NHS Foundation Trust
| | - N Carty
- Salisbury Hospital Foundation Trust
| | - J Ahmed
- Salisbury Hospital Foundation Trust
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- Southport and Ormskirk Hospital NHS Trust
| | - C Hindley
- Southport and Ormskirk Hospital NHS Trust
| | - M Reddy
- St George's Healthcare NHS Trust
| | - R Kenny
- St George's Healthcare NHS Trust
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- St Helens and Knowsley Teaching Hospitals NHS Trust
| | - A Hargreaves
- St Helens and Knowsley Teaching Hospitals NHS Trust
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- Imperial College Healthcare NHS Trust
| | | | - G Yeldham
- Imperial College Healthcare NHS Trust
| | - E Read
- Imperial College Healthcare NHS Trust
| | | | | | | | | | - M A Khan
- Mid Staffordshire NHS Foundation Trust
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- Mid Staffordshire NHS Foundation Trust
| | | | | | | | | | | | | | | | | | - S Ali
- City Hospitals Sunderland NHS Foundation Trust
| | - V Kanakala
- City Hospitals Sunderland NHS Foundation Trust
| | - H Ali
- Tunbridge Wells and Maidstone NHS Trust
| | - R Lane
- Tunbridge Wells and Maidstone NHS Trust
| | | | | | - D Mirza
- University Hospital Birmingham NHS Foundation Trust
| | - S Puig
- University Hospital Birmingham NHS Foundation Trust
| | - K Al Amari
- University Hospital Birmingham NHS Foundation Trust
| | - D Vijayan
- University Hospital Birmingham NHS Foundation Trust
| | - R Sutcliffe
- University Hospital Birmingham NHS Foundation Trust
| | | | - Z Hamady
- University Hospital Coventry and Warwickshire NHS Trust
| | - A R Prasad
- University Hospital Coventry and Warwickshire NHS Trust
| | - A Patel
- University Hospital Coventry and Warwickshire NHS Trust
| | - D Durkin
- University Hospital of North Staffordshire NHS Trust
| | - P Kaur
- University Hospital of North Staffordshire NHS Trust
| | - L Bowen
- University Hospital of North Staffordshire NHS Trust
| | - J P Byrne
- University Hospital Southampton NHS Foundation Trust
| | - K L Pearson
- University Hospital Southampton NHS Foundation Trust
| | - T G Delisle
- University Hospital Southampton NHS Foundation Trust
| | - J Davies
- University Hospital Southampton NHS Foundation Trust
| | | | | | | | - A Macdonald
- University Hospital South Manchester NHS Foundation Trust
| | - J Nicholson
- University Hospital South Manchester NHS Foundation Trust
| | - K Newton
- University Hospital South Manchester NHS Foundation Trust
| | - J Mbuvi
- University Hospital South Manchester NHS Foundation Trust
| | - A Farooq
- Warrington and Halton Hospitals NHS Trust
| | | | - Z Zafrani
- Warrington and Halton Hospitals NHS Trust
| | - D Brett
- Warrington and Halton Hospitals NHS Trust
| | | | | | - J Barnes
- South Warwickshire NHS Foundation Trust
| | - M Cheung
- South Warwickshire NHS Foundation Trust
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - M Wadley
- Worcestershire Acute Hospitals NHS Trust
| | - E Hamilton
- Worcestershire Acute Hospitals NHS Trust
| | - S Jaunoo
- Worcestershire Acute Hospitals NHS Trust
| | - R Padwick
- Worcestershire Acute Hospitals NHS Trust
| | - M Sayegh
- Western Sussex Hospitals NHS Foundation Trust
| | - R C Newton
- Western Sussex Hospitals NHS Foundation Trust
| | - M Hebbar
- Western Sussex Hospitals NHS Foundation Trust
| | - S F Farag
- Western Sussex Hospitals NHS Foundation Trust
| | | | | | | | - C Blane
- Yeovil District Hospital NHS Trust
| | - M Giles
- York Teaching Hospital NHS Foundation Trust
| | - M B Peter
- York Teaching Hospital NHS Foundation Trust
| | - N A Hirst
- York Teaching Hospital NHS Foundation Trust
| | - T Hossain
- York Teaching Hospital NHS Foundation Trust
| | - A Pannu
- York Teaching Hospital NHS Foundation Trust
| | | | | | - G W Taylor
- York Teaching Hospital NHS Foundation Trust
| | | | | | | | | | | | | | | | | | | | | | | | | | - T Diamond
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - P Davey
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - C Jones
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - J M Clements
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - R Digney
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - W M Chan
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - S McCain
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - S Gull
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - A Janeczko
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - E Dorrian
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - A Harris
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - S Dawson
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - D Johnston
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | - B McAree
- Belfast City Hospital, Mater Infirmorum Hospital Belfast and Royal Victoria Hospital
| | | | | | | | | | | | | | | | | | | | | | | | | | - P Burke
- University Hospital Limerick
| | | | - A D K Hill
- Louth County Hospital and Our Lady of Lourdes Hospital
| | - E Khogali
- Louth County Hospital and Our Lady of Lourdes Hospital
| | - W Shabo
- Louth County Hospital and Our Lady of Lourdes Hospital
| | - E Iskandar
- Louth County Hospital and Our Lady of Lourdes Hospital
| | | | | | | | | | | | | | | | | | - P Balfe
- St Luke's General Hospital Kilkenny
| | - M Lee
- St Luke's General Hospital Kilkenny
| | - D C Winter
- St Vincent's University and Private Hospitals, Dublin
| | - M E Kelly
- St Vincent's University and Private Hospitals, Dublin
| | - E Hoti
- St Vincent's University and Private Hospitals, Dublin
| | - D Maguire
- St Vincent's University and Private Hospitals, Dublin
| | - P Karunakaran
- St Vincent's University and Private Hospitals, Dublin
| | - J G Geoghegan
- St Vincent's University and Private Hospitals, Dublin
| | - S T Martin
- St Vincent's University and Private Hospitals, Dublin
| | - F McDermott
- St Vincent's University and Private Hospitals, Dublin
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - S Gibson
- Crosshouse Hospital, Ayrshire and Arran
| | | | - D G Vass
- Crosshouse Hospital, Ayrshire and Arran
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - H C C Lim
- Glangwili General and Prince Philip Hospital
| | - D Duke
- Glangwili General and Prince Philip Hospital
| | - T Ahmed
- Glangwili General and Prince Philip Hospital
| | - W D Beasley
- Glangwili General and Prince Philip Hospital
| | | | - G Maharaj
- Glangwili General and Prince Philip Hospital
| | - C Malcolm
- Glangwili General and Prince Philip Hospital
| | | | | | | | - R Radwan
- Morriston and Singleton Hospitals
| | | | - S Wood
- Princess of Wales Hospital
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Soomro TN, Buchan J. Comment on ‘The accuracy of the Edinburgh Red Eye Diagnostic Algorithm’. Eye (Lond) 2016; 30:164-5. [DOI: 10.1038/eye.2015.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Cassels-Brown A, Shickle D, Buchan J. Overcoming challenges in the UK's National Health Service. Community Eye Health 2016; 29:5. [PMID: 27601789 PMCID: PMC4995832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Loberg M, Buchan J, Allan K, Spencer M, West J. Mutational Analysis of the Dimer and Decamer Interface Residues in the Yeast Peroxiredoxin Tsa1. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.570.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Matthew Loberg
- Biochemistry & Molecular BiologyProgramThe College of WoosterWoosterOHUnited States
| | - John Buchan
- Biochemistry & Molecular BiologyProgramThe College of WoosterWoosterOHUnited States
| | - Kristin Allan
- Biochemistry & Molecular BiologyProgramThe College of WoosterWoosterOHUnited States
| | - Matthew Spencer
- Biochemistry & Molecular BiologyProgramThe College of WoosterWoosterOHUnited States
| | - James West
- Biochemistry & Molecular BiologyProgramThe College of WoosterWoosterOHUnited States
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Abstract
AIM Examine metrics and policies regarding nurse workforce across four countries. BACKGROUND International comparisons inform health policy makers. METHODS Data from the OECD were used to compare expenditure, workforce and health in: Australia, Portugal, the United Kingdom (UK) and the United States (US). Workforce policy context was explored. RESULTS Public spending varied from less than 50% of gross domestic product in the US to over 80% in the UK. Australia had the highest life expectancy. Portugal has fewer nurses and more physicians. The Australian national health workforce planning agency has increased the scope for co-ordinated policy intervention. Portugal risks losing nurses through migration. In the UK, the economic crisis resulted in frozen pay, reduced employment, and reduced student nurses. In the US, there has been limited scope to develop a significant national nursing workforce policy approach, with a continuation of State based regulation adding to the complexity of the policy landscape. The US is the most developed in the use of nurses in advanced practice roles. Ageing of the workforce is likely to drive projected shortages in all countries. LIMITATIONS There are differences as well as variation in the overall impact of the global financial crisis in these countries. CONCLUSION Future supply of nurses in all four countries is vulnerable. IMPLICATIONS FOR NURSING AND HEALTH POLICY Work force planning is absent or restricted in three of the countries. Scope for improved productivity through use of advanced nurse roles exists in all countries.
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Affiliation(s)
- J Buchan
- School of Health, Queen Margaret University, Edinburgh, UK
| | - D Twigg
- Nursing and Health Services Management, Edith Cowan University, Perth, WA, Australia.,Sir Charles Gairdner Hospital, Perth, WA, Australia
| | - G Dussault
- International Public Health and Biostatistics Unit, Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Lisbon, Portugal
| | - C Duffield
- Nursing and Health Services Management, Edith Cowan University, Perth, WA, Australia.,Nursing and Health Services Management, University of Technology, Sydney, NSW, Australia
| | - P W Stone
- Columbia University School of Nursing, New York, NY, USA
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Cuesta-Vargas AI, Buchan J, Arroyo-Morales M. A multimodal physiotherapy programme plus deep water running for improving cancer-related fatigue and quality of life in breast cancer survivors. Eur J Cancer Care (Engl) 2013; 23:15-21. [PMID: 23947581 DOI: 10.1111/ecc.12114] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/17/2013] [Indexed: 11/27/2022]
Abstract
The aim of the study was to assess the feasibility and effectiveness of aquatic-based exercise in the form of deep water running (DWR) as part of a multimodal physiotherapy programme (MMPP) for breast cancer survivors. A controlled clinical trial was conducted in 42 primary breast cancer survivors recruited from community-based Primary Care Centres. Patients in the experimental group received a MMPP incorporating DWR, 3 times a week, for an 8-week period. The control group received a leaflet containing instructions to continue with normal activities. Statistically significant improvements and intergroup effect size were found for the experimental group for Piper Fatigue Scale-Revised total score (d = 0.7, P = 0.001), as well as behavioural/severity (d = 0.6, P = 0.05), affective/meaning (d = 1.0, P = 0.001) and sensory (d = 0.3, P = 0.03) domains. Statistically significant differences between the experimental and control groups were also found for general health (d = 0.5, P < 0.05) and quality of life (d = 1.3, P < 0.05). All participants attended over 80% of sessions, with no major adverse events reported. The results of this study suggest MMPP incorporating DWR decreases cancer-related fatigue and improves general health and quality of life in breast cancer survivors. Further, the high level of adherence and lack of adverse events indicate such a programme is safe and feasible.
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Affiliation(s)
- A I Cuesta-Vargas
- Physiotherapy, University of Malaga, Malaga, Spain; School Clinical Science, Queensland University of Technology, Brisbane, Qld, Australia
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Dawson AJ, Buchan J, Duffield C, Homer CSE, Wijewardena K. Task shifting and sharing in maternal and reproductive health in low-income countries: a narrative synthesis of current evidence. Health Policy Plan 2013; 29:396-408. [DOI: 10.1093/heapol/czt026] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Affiliation(s)
- J Campbell
- Instituto de Cooperación Social-Integrare, Barcelona, Spain.
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Abstract
AIM To adapt and promote a relevant track and trigger system based on modified early warning systems (MEWS) for use in rural community hospitals in Powys, Wales. METHOD Track and trigger systems, including MEWS, were reviewed, compared and developed by senior nursing and medical staff using PDSA (Plan Do Study Act) cycles. RESULTS A track and trigger system was developed, piloted and rolled out to all ten community hospitals in Powys. The system is not only used to monitor inpatients, but is also useful in determining appropriateness of patient transfer to district general hospitals. CONCLUSION The track and trigger scoring system has proved useful in assessing patients and alerting staff if their condition is deteriorating. It has ensured, when necessary, timely, appropriate and safe transfer of patients to the district general hospital. The scoring system has been extended to determine appropriateness of accepting patients from the district general hospital to the community hospital.
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Abstract
Buchan discusses two studies in southern Sudan that provide the first estimates of the prevalence and causes of blindness and low vision for this region since before the 21-year conflict began.
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Affiliation(s)
- John Buchan
- Bradford Royal Infirmary, Bradford, United Kingdom.
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Zondervan M, Kuper H, Solomon A, Buchan J. Health promotion for trachoma control. Community Eye Health 2004; 17:57-8. [PMID: 17491823 PMCID: PMC1705738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
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Abstract
AIM Previous surveys of ocular disease in leukaemia patients have shown the retina, choroid, and orbit as the most commonly involved sites. Depending on the type of leukaemia and the study design, the prevalence of ocular disease in leukaemia varies from 30 to 90%. Although chronic lymphocytic leukaemia (CLL) is the most common leukaemia in Western countries, the prevalence of ocular disease in CLL is not known. The aim of this prospective study was to estimate the prevalence of ocular disease in CLL. PATIENTS AND METHODS All CLL patients attending either a teaching or district general hospital haematology clinic were invited to undergo a full eye examination. The clinical stage of the CLL (Binet) at the time of the eye examination and the most recent full blood count (FBC) indices were recorded for each patient. RESULTS Over 6 months, 25 patients with an average age of 65 were recruited. A total of 18 patients had Binet stage A disease, three had stage B, and four stage C. The mean FBC indices at the time of examination were haemoglobin 13.5 g/dl, white cell count 37.4 x 10(9)/l, and platelets 172 x 10(9)/l. Only three patients (12%) had ocular disease that was likely to be a secondary complication of CLL. These secondary complications included bilateral posterior subcapsular cataract following radiotherapy, unilateral acute retinal necrosis, and unilateral conjunctival vascular anomalies. The presence of ocular complications was not related to the CLL stage or to the current FBC parameters. DISCUSSION This study demonstrates that ocular involvement in CLL is uncommon, a reflection of the indolent course of CLL as compared to other leukaemias. Although sight-threatening ocular complications have been documented in this and other studies, the low prevalence of complications and the lack of association with disease parameters make it impossible to identify a 'high-risk' group. Routine screening of CLL patients for ocular complications is not justified.
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Affiliation(s)
- J Buchan
- Department of Ophthamology, St James University Hospital, Leeds, UK
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Buchan J. Nursing shortages and evidence-based interventions: a case study from Scotland. Int Nurs Rev 2002; 49:209-18. [PMID: 12492942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
In this report, key aspects of change in the labour market for nurses in Scotland are examined, and an integrated policy framework intended to improve nurse recruitment, retention and utilization is outlined. The purpose of this article is to provide an overview of the dynamics of the nursing labour market in Scotland and to draw some more general messages from the evidence base on the effectiveness of interventions to improve recruitment and retention of nursing staff. The paper has three main elements: it provides a backdrop of key trends in the Scottish nursing labour market; it summarizes issues related to planning and nursing shortages, including an assessment of the utility of current indicators of recruitment and retention difficulties; and it reviews the main potential interventions to address nurse recruitment and retention difficulties, drawing from key research/evidence from UK and other English language sources. Five main interventions are examined: integrating the planning of the healthcare workforce; improving recruitment; incentives to improve retention; improving staff deployment; and improving utilization/skill mix.
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Affiliation(s)
- J Buchan
- Faculty of Social Sciences and Health Care, Queen Margaret University College, Edinburgh, UK.
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Rugg EL, Common JEA, Wilgoss A, Stevens HP, Buchan J, Leigh IM, Kelsell DP. Diagnosis and confirmation of epidermolytic palmoplantar keratoderma by the identification of mutations in keratin 9 using denaturing high-performance liquid chromatography. Br J Dermatol 2002; 146:952-7. [PMID: 12072061 DOI: 10.1046/j.1365-2133.2002.04764.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Epidermolytic palmoplantar keratoderma (EPPK) is one of a number of disorders characterized by diffuse thickening of palm and sole skin. Although EPPK is not a life-threatening condition, palmoplantar keratoderma can be associated with cancer and heart disease and therefore differential diagnosis is important so that adequate surveillance can be provided for the more serious conditions. Most cases of EPPK are caused by mutations in the gene encoding the palm- and sole-specific keratin 9 (K9), and this provides an option for molecular diagnosis of this condition. OBJECTIVES To identify the molecular basis of diffuse palmoplantar keratoderma in four British families. METHODS Denaturing high-performance liquid chromatography (dHPLC) and DNA sequencing were used to screen exon 1 of the k9 gene for sequence variations. RESULTS The dHPLC profiles obtained from individuals with EPPK differed from control samples, indicating sequence variations within the fragment analysed. The profiles varied between families, suggesting that underlying mutations were different for each family; this was confirmed by DNA sequencing. In three cases previously reported mutations were found that resulted in the change of methionine156 to valine and arginine162 to either tryptophan or glutamine. A novel mutation was identified in a fourth family that changed valine170 to methionine. dHPLC was used to screen control samples for this sequence variation and confirmed that it was not a common polymorphism. CONCLUSIONS These results confirm the diagnosis of EPPK in these families and underline the usefulness of dHPLC as a method of screening samples for heterozygous mutations.
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Affiliation(s)
- E L Rugg
- Centre for Cutaneous Research, Barts and The London, Queen Mary's School of Medicine and Dentistry, University of London, 2 Newark Street, London E1 2AT, UK.
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Affiliation(s)
- J Buchan
- Queen Margaret University College, Edinburgh
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