137 results on '"I. Chetter"'
Search Results
2. A randomised controlled trial of compression therapies for the treatment of venous leg ulcers (VenUS 6): study protocol for a pragmatic, multicentre, parallel-group, three-arm randomised controlled trial
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C. E. Arundel, C. Welch, P. Saramago, U. Adderley, R. Atkinson, I. Chetter, N. Cullum, T. Davill, J. Griffiths, C. Hewitt, C. Hirst, M. Kletter, J. Mullings, G. Roberts, B. Smart, M. Soares, P. Stather, L. Strachan, N. Stubbs, D. J. Torgerson, J. Watson, S. Zahra, and J. Dumville
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Compression therapies ,Time to healing ,Venous leg ulcer ,Randomised controlled trial ,Wound healing ,Medicine (General) ,R5-920 - Abstract
Abstract Background Venous leg ulcer(s) are common, recurring, open wounds on the lower leg, resulting from diseased or damaged leg veins impairing blood flow. Wound healing is the primary treatment aim for venous leg ulceration, alongside the management of pain, wound exudate and infection. Full (high) compression therapy delivering 40 mmHg of pressure at the ankle is the recommended first-line treatment for venous leg ulcers. There are several different forms of compression therapy available including wraps, two-layer hosiery, and two-layer or four-layer bandages. There is good evidence for the clinical and cost-effectiveness of four-layer bandage and two-layer hosiery but more limited evidence for other treatments (two-layer bandage and compression wraps). Robust evidence is required to compare clinical and cost-effectiveness of these and to investigate which is the best compression treatment for reducing time to healing of venous leg ulcers whilst offering value for money. VenUS 6 will therefore investigate the clinical and cost-effectiveness of evidence-based compression, two-layer bandage and compression wraps for time to healing of venous leg ulcers. Methods VenUS 6 is a pragmatic, multi-centre, three-arm, parallel-group, randomised controlled trial. Adult patients with a venous leg ulcer will be randomised to receive (1) compression wraps, (2) two-layer bandage or (3) evidence-based compression (two-layer hosiery or four-layer bandage). Participants will be followed up for between 4 and 12 months. The primary outcome will be time to healing (full epithelial cover in the absence of a scab) in days since randomisation. Secondary outcomes will include key clinical events (e.g. healing of the reference leg, ulcer recurrence, ulcer/skin deterioration, amputation, admission/discharge, surgery to close/remove incompetent superficial veins, infection or death), treatment changes, adherence and ease of use, ulcer related pain, health-related quality of life and resource use. Discussion VenUS 6 will provide robust evidence on the clinical and cost-effectiveness of the different forms of compression therapies for venous leg ulceration. VenUS 6 opened to recruitment in January 2021 and is currently recruiting across 30 participating centres. Trial registration ISRCTN67321719 . Prospectively registered on 14 September 2020
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- 2023
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3. PRESS survey: PREvention of surgical site infection—a global pan-specialty survey of practice protocol
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J. Heinz, J. Walshaw, J. Y. Kwan, J. Long, D. Carradice, J. Totty, K. M. Kontouli, P. Lainas, L. Hitchman, G. Smith, B. Huo, H. Guadalajara, D. Garcia-Olmo, D. Sharma, C. S. Biyani, J. Tomlinson, M. Loubani, R. Galli, R. Lathan, I. Chetter, and M. Yiasemidou
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survey ,surgical wound infection ,surgery ,practice ,guidelines ,Surgery ,RD1-811 - Abstract
BackgroundSurgical site infections (SSI) complicate up to 40% of surgical procedures, leading to increased patient morbidity and mortality. Previous research identified disparities in SSI prevention guidelines and clinical practices across different institutions. The study aims to identify variations in SSI prevention practices within and between specialties and financial systems and provide a representation of existing SSI preventative measures to help improve the standardization of SSI prevention practices.MethodsThis collaborative cross-sectional survey will be aimed at pan-surgical specialties internationally. The study has been designed and will be reported in line with the CROSS and CHERRIES standards. An international study steering committee will design and internally validate the survey in multiple consensus-based rounds. This will be based on SSI prevention measures outlined in the CDC (2017), WHO (2018), NICE (2019), Wounds UK (2020) and the International Surgical Wound Complications Advisory Panel (ISWCAP) guidelines. The questionnaire will include demographics, SSI surveillance, preoperative, peri-operative and postoperative SSI prevention. Data will be collected on participants' surgical specialty, operative grade, of practice and financial healthcare system of practice. The online survey will be designed and disseminated using QualtricsXM Platform™ through national and international surgical colleges and societies, in addition to social media and snowballing. Data collection will be open for 3 months with reminders, and raking will be used to ascertain the sample. Responses will be analyzed, and the chi-square test used to evaluate the impact of SSI prevention variables on responses.DiscussionCurrent SSI prevention practice in UK Vascular surgery varies considerably, with little consensus on many measures. Given the inconsistency in guidelines on how to prevent SSIs, there is a need for standardization. This survey will investigate the disparity in SSI preventative measures between different surgical fields and countries.
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- 2023
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4. O060 High intensity interval training in patients with intermittent claudication (INITIATE): a multicentre, proof-of-concept, prospective interventional study
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S Pymer, A Harwood, S Ibeggazene, G McGregor, C Huang, M Twiddy, A Nicholls, L Ingle, S Carroll, J Long, M Rooms, and I Chetter
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Surgery - Abstract
Introduction Provision, uptake, adherence, and completion rates for supervised exercise programmes (SEP) for intermittent claudication (IC) are low. For patients, SEPs are too time intensive. High-intensity interval training (HIIT) may be a time-efficient, effective alternative. Methods This was an NIHR funded, multicentre, proof-of-concept study. HIIT was performed three times per week for six-weeks and involved a 1:1 work to rest ratio. Outcomes were feasibility, tolerability, safety and potential efficacy. Results 279 patients were screened, 59% were eligible and 25% were recruited for HIIT. 78% of patients completed HIIT, though 3 patients (7.5%) were unable to tolerate it. Patients attended 99% of training sessions, with 84% of sessions completed in full, largely at the required intensity. There were no related serious adverse events. The mean improvements in MWD and physical functioning were 94m (95%CI=66.6-120.8m), and 4.4% (95%CI=-1.1–9.9%) respectively. Conclusion Uptake to HIIT was comparable to SEPs, but completion rates were higher. Most sessions were completed in full with no related serious adverse events. There was an improvement in MWD. HIIT appears feasible, safe, tolerable and potentially beneficial for patients with IC. It may provide a more deliverable, more acceptable, SEP. A non-inferiority trial of HIIT vs. SEPs appears warranted.
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- 2023
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5. O009 Completion of supervised exercise therapy improves outcomes for patients with intermittent claudication: propensity score-matched analysis of 7-year outcomes
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B Ravindhran, A Lim, J Walshaw, T Kurian, M Sidapra, R Lathan, L Hitchman, A Mohamed, D Carradice, G Smith, I Chetter, and S Pymer
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Surgery - Abstract
Introduction The goal of this study was to compare the long-term outcomes of patients with intermittent claudication (IC) who completed supervised exercise therapy (SET) versus patients who either declined or prematurely discontinued SET. Methods A retrospective, observational, single-centre cohort study of patients with IC referred to SET. Outcomes included progression to chronic limb-threatening ischemia (CLTI), revascularization requirement, and cardiovascular death.1:1 propensity score matching (PSM) using nearest-neighbour (caliper=0.2) was performed. Multivariate analysis (MVA) and logistic-regression (LR) were used to identify significant effect modifiers to guide PSM. Time-to-event data were analysed using Kaplan-Meier survival analysis. Results 241 patients were referred to SET between July 2015 and July 2016. Forty-nine patients completed SET and 192 patients did not. There was no significant difference in age, diabetes, smoking-cessation, and medication compliance between groups. After PSM, 49 patients who declined SET and 41 patients who completed SET were analysed. Progression to CLTI was significantly lower (10.2% vs 65.9%; p Conclusion SET for claudication reduces requirement for future revascularisation by slowing disease progression.
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- 2023
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6. Patient-reported quality of life factors in vascular surgical wounds healing by secondary intention (SWHSI): a qualitative patient and public involvement (PPI) exploration
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M Sidapra, P Ramakrishnan, F Siracusa, J Walshaw, J Long, C Arundel, and I Chetter
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Background: Surgical wounds healing by secondary intention (SWHSI) represent a significant burden to patients and services. An understanding of quality of life factors affecting this population is essential to recognise the impact of this wound entity on patients. Understanding of the patient experience is necessary to building effective services and designing high-quality research studies to improve care in this population. Methods: Twelve individuals with lived experience of living with a SWHSI or caring for a person with a SWHSI were recruited to one of two focus groups. Participants were identified from those who had previously been recruited into the NIHR-funded SWHSI-2 trial (NIHR17/42/94; a study assessing healing of surgical wound healing by secondary intention). All participants in this cohort had lower limb SWHSIs and a history of peripheral vascular disease. Sessions followed a general topic guide and were guided by the research team. Sessions were audio-recorded, transcribed and analysed using thematic analysis methods. Results: Four main areas of impact on quality of life were identified: mental health, physical symptoms, lifestyle symptoms and service-based impacts. There was a clear heterogeneity of experience seen within the group, with some reporting a more significant impact than others. This was ascribed to the loss of social and professional functioning, and the subsequent impact on mental health. There was a differential impact of this on younger participants (who tended to be employed and hold caring roles for children or family members) compared to older participants who did not have these social roles to fulfil, and were less affected in these areas. The need for improved preoperative counselling was highlighted, as many participants reported feeling unprepared for the postoperative course. Conclusions: This study considered the experiences of patients with a SWHSI and identified the main areas of impact on quality of life. This work will help to underpin future research into treatments and services for the SWHSI population. It may also form the basis for identifying an appropriate patient-reported outcome measure (PROM) related to quality of life in SWHSI for use in the research setting. Limitations of the study included the number and diversity of participants, and the impact of the SARS-CoV-2 (COVID-19) pandemic on the experiences of participants. Further exploration of the area through formal qualitative study is warranted to understand the breadth, generalisability and possible future applications of the work.
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- 2023
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7. Editors foreword
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I Chetter
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Welcome to the latest issue of the Journal of Vascular Societies Great Britain and Ireland (JVSGBI).
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- 2023
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8. Do we need a UK vascular journal? Survey of multidisciplinary UK vascular specialists
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I Chetter, M Sidapra, S Nandhra, R Lathan, and J Long
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medicine.medical_specialty ,business.industry ,Multidisciplinary approach ,Family medicine ,education ,Medicine ,business ,humanities ,health care economics and organizations - Abstract
Background: Prior to the development of the Journal of Vascular Societies Great Britain & Ireland (JVSGBI), there were limited opportunities for UK based vascular health professionals to publish research relevant for UK vascular practice. A survey was developed to evaluate the appetite and potential infrastructure for a UK vascular journal amongst vascular healthcare professionals. Methods: In May 2020, an online questionnaire was administered by The Vascular Society of Great Britain and Ireland (VSGBI) Research Committee, surveying vascular health professionals regarding the development of a UK-specific vascular journal. The survey was disseminated via email to multi-disciplinary members of the vascular community with links promoted on social media. Results: Responses were received from 359 individuals identifying predominantly as surgeons (38%), nurses (8%), technologists (10%), radiologists (20%), trainees (10%), physiotherapists (7%) and other (7%). The majority of participants (67%) indicated they would be in favour of a UK-specific vascular journal and that it should be available as an online quarterly publication. Almost three quarters (74%) of respondents thought a subscription fee should be included in societies’ membership fees. Free text comments highlighted a few concerns, suggesting the focus should instead be to improve the quality of existing vascular journals. However, most respondents welcomed the idea of a journal relevant to UK practice, with inclusivity of all UK vascular professions to encourage more collaborative working. Conclusions: Overall, feedback collected from the survey was positive and suggested a demand for a UK-specific vascular journal, providing an indication that the development of such a journal should be further explored. The results of this survey helped to inform the development of the JVSGBI.
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- 2021
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9. A Double Blind, Placebo Controlled, Randomised Trial of Extracorporeal Shockwave Therapy as a Novel Treatment For Intermittent Claudication
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P. Cai, S. Pymer, S. Ibeggazene, L. Hitchman, D. Carradice, I. Chetter, and G. Smith
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Surgery ,Cardiology and Cardiovascular Medicine - Published
- 2023
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10. Defining priorities in vascular access research
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JR De Siqueira, CA Fielding, GJ Pettigrew, MG Robson, SK Rogers, K Steiner, W Withers, J Long, T Gronlund, I Chetter, and GE Smith
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Introduction: There is increasing need for renal replacement therapy associated with the aging population and dramatic increases in diabetes prevalence. Despite an increasing clinical vascular access workload, there are significant unanswered research questions and a paucity of high quality trials to guide clinical practice. To address where future research in vascular access should be directed, we conducted a Priority Setting Partnership involving multiple disciplines, specialties, patients and carers. Methods: In collaboration with the James Lind Alliance, four rounds of surveys were circulated to identify and score professional and patient priorities in vascular access research. Finally, in a consensus workshop attended by patients and professionals, priorities were discussed and a ranked top 10 list was produced using a nominal group technique. Results: A total of 1,813 research priorities were submitted within all areas of vascular surgery. Following removal of duplicates, consolidation and categorisation, 15 patient and professional priorities in vascular access research were taken forward to the consensus workshop. The workshop produced a ranked top 10 list of vascular access research priorities relating to: optimising access function, preventing access complications and education of patients and healthcare staff. Conclusions: These research priorities should help to direct and contextualise future research in vascular access.
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- 2022
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11. Editor's Foreword
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I Chetter
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Welcome to the fifth issue of the Journal of Vascular Societies Great Britain and Ireland (JVSGBI). We are really delighted with the success of the journal, and this issue marks the first anniversary of the launch at the Vascular Societies GB&I Annual Scientific meeting last year. The increasing interest in the JVSGBI has been demonstrated by the growing number of submitted articles and the impressive website stats (over 3,000 views). This issue includes three editorials. The first by Andrew Garnham (VSGBI President Elect) and Rachael Forsythe (Rouleaux President) provides a thoughtful reflection on the problem of bullying, undermining and harassment in (vascular) surgical training highlighted as a persistent problem by a Rouleaux Club paper in this edition. The second editorial from Dr Una Adderley, National Wound Care Strategy Programme (NWCSP) Director, outlines past achievements and future plans for the programme. Finally, Duygu Yenidogan-Schmidt, Chair of the Executive Committee of AAA UK, a newly formed patient representative group giving national representation to AAA patients and relatives, highlights the origins, purpose and aims of this group. I am sure these editorials will be of great interest to readers. There are four original research articles, the first from the Rouleaux Club, the UK Vascular Surgery Trainees’ Association, reports the findings from their recent bullying, undermining and harassment survey. The second from the Vascular and Endovascular Research Network (VERN) reports the findings from the Tier 3 COVID-19 Vascular Service (COVER) study. The final two original articles present the findings from the James Lind Alliance Priority Setting Partnership from the Vascular Services and Venous Conditions Groups. It is fantastic to see vascular trainees continuing to undertake meaningful and impactful research and choose the JVSGBI to disseminate their work. This edition also contains a research protocol from Ravindhran et al for a systematic review which aims to study changes in functional health status following open abdominal aortic aneurysm repair. Finally, in this issue there is a short educational report entitled ‘Intraoperative management of REBOA’ and a case report entitled ‘Carotid web: an important cause of stroke in young people’. The National Wound Care Strategy Programme Guidelines for lower limb wounds are published as a supplement to this issue and can be located on the journal website. This is our fifth issue, and we would like to take the opportunity to thank all the authors who have submitted articles during the last year, which is building on the success of the journal – your contribution has been really appreciated and I hope you are delighted with your publication. We would also like to thank all the reviewers for their timely and thorough contributions. Finally, please do continue to share your work by submitting articles for publication.
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- 2022
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12. Changes in functional health status following open abdominal aortic aneurysm repair and the role of exercise-based rehabilitation: protocol for a systematic review and meta-analysis
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B Ravindhran, R Lathan, T Staniland, M Sidapra, D Carradice, I Chetter, G Smith, J Saxton, and S Pymer
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Background and objectives: The aim of this systematic review is to explore the current evidence surrounding the changes in functional status following open or endovascular abdominal aortic aneurysm (AAA) repair and the role of postoperative exercise-based rehabilitation programmes. Methods: The proposed study will incorporate two separate systematic reviews within it, one to assess changes in functional status (component 1) and another to consider the role of exercise-based rehabilitation for improving functional status (component 2), both following AAA repair. The Medline, EMBASE and Cochrane CENTRAL databases will be searched using two separate search strategies including the terms “aortic aneurysm”, “functional capacity”, “functional decline” and” exercise therapy”. We plan to include all prospective randomised and non-randomised trials that have considered the impact of AAA repair on functional status and/or the effect of exercise-based rehabilitation following AAA repair. For component 1, the primary outcome will be changes in objective measures of functional capacity or physical function following AAA repair and, for component 2, it will be changes in physical function or functional capacity following exercise-based rehabilitation after AAA repair. The extracted data will include study characteristics – ie, sample size, a description of the intervention and control conditions (where applicable), outcome measures, length of follow-up and main findings related to outcome measures. For both components a narrative synthesis will be produced, supported by a summary table. We intend to conduct quantitative meta-analyses for both components. For each selected outcome we plan to evaluate the certainty of evidence based on the GRADE approach and risk of bias of included studies will be assessed using the Cochrane tool. Conclusions: Based on a lack of current evidence, we present a protocol for a systematic review to investigate the functional changes associated with open and endovascular AAA repair and the potential value of postoperative exercise rehabilitation.
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- 2022
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13. Assessment of the diagnostic accuracy of automated ankle brachial pressure index devices in patients with diagnosed or suspected peripheral arterial disease: protocol for a systematic review and meta-analysis
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J Walshaw, R Lathan, C Huang, T Staniland, I Chetter, and S Pymer
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Background: The ankle brachial pressure index (ABPI) is a common diagnostic tool used in the assessment of peripheral arterial disease (PAD). The Doppler ultrasound technique is regarded as the gold-standard method for ABPI measurement; however, time constraints and operator experience limit widespread application in clinical practice, particularly in a primary care setting. Automated ABPI devices are not currently widely used due to a lack of evidence regarding their diagnostic accuracy. The aim of this proposed systematic review and meta-analysis is to explore the current evidence for the accuracy of automated ABPI devices in people with known or suspected PAD. Methods: Systematic searches of electronic databases and grey literature will be performed. We plan to include studies of adult patients with diagnosed or suspected PAD that have compared automated ABPI device readings with manual Doppler ABPI measurements or confirmed the diagnosis of PAD using vascular imaging. Two independent reviewers will screen identified literature for inclusion and perform data extraction. Extracted data will include study and participant characteristics, a description of the index and reference tests, outcome measures and main findings. The methodological quality of selected studies will be assessed using QUADAS-2 and QUADAS-C. Meta-analysis will be performed for studies with paired designs using a bivariate random-effect model to provide pooled estimates of summary accuracy statistics. We intend to conduct subgroup analyses and meta-regression for suspected sources of heterogeneity. Discussion: This review aims to assess the diagnostic accuracy of automated ABPI devices for detecting PAD in patients with known or suspected PAD compared with manual Doppler ABPI measurements or vascular imaging. These results will be used to inform clinical practice and guide future trials.
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- 2022
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14. 1023 An Audit of The Prevalence of Frailty and The Impact on Surgical Management and Resource Use, For Vascular Inpatients Using the National Vascular Registry (NVR) Frailty Classifications
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I Chetter, S Sethi, Louise Hitchman, and J Palmer
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medicine.medical_specialty ,business.industry ,Emergency medicine ,medicine ,Resource use ,Surgery ,Audit ,business - Abstract
Aim To determine if the NVR frailty score was being routinely collected on all relevant vascular patients on admission, identify the prevalence of frailty in vascular inpatients and determine if frailty was associated with a higher mortality and morbidity. Method A prospective audit of consecutive patients admitted onto the vascular ward who were eligible for inclusion on the NVR. Data was collected from electronic patient records and paper case notes between November 2019 and February 2020. The primary outcome was completeness of frailty assessment. Secondary outcomes were prevalence of frailty and mortality and morbidity associated with frailty score. Results Frailty status was documented in 65% of patients. 43% (28/65) were assessed to be frail. The 30-day mortality rate was 1.53% (1/65). 26.15% (17/65) had one or more complication. The commonest complications were graft occlusions, acute kidney injury, hospital acquired pneumonia and groin infections. 93.84% (61/65) were discharged home. There was no correlation between frailty and number of post-operative complications (p = 0.394), length of stay (p = 0.171) or mortality (p = 0.371). Conclusions This audit found frailty assessment is poorly assessed and the current NVR frailty classification did not correlate to increase mortality or morbidity in this patient cohort.
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- 2021
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15. 1026 Assessing the Reliability of 3D Imaging for Wound Measurements
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George Davey Smith, M Sidapra, A Stirrup, I Chetter, P Cai, Louise Hitchman, S Sethi, Daniel Carradice, and R Lathan
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business.industry ,Medicine ,Surgery ,business ,Reliability (statistics) ,Reliability engineering - Abstract
Aim To investigate the inter and intra reliability of using 3D imaging to measure wounds. Method 20 wound models of 4 different shaped wounds in 5 different colours were created from plastic mouldable beads. 3D images were taken using the BlasterX Senz3D camera and measured using the GPC Wound Measure application (version 3.15.0.0, UK). Intra-user reliability was determined comparing 20 wound measurements of each wound model. Inter-user reliability was determined by 5 different clinicians photographing each model and independently measuring each wound photo. The inter- and intra-rater measurements for wound surface area and volume were compared using the ICC and differences from the overall mean plotted on Bland-Altman graphs. Results The interclass co-efficient (ICC) for inter-rater reliability in measuring surface area was 0.958 (95% CI 0.919-0.981, p Conclusions 3D imaging offers a quick, reliable, and easy to use solution to measuring wounds. We have shown it is a reliable and reproducible method of measuring wounds between different clinicians.
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- 2021
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16. 1031 A Mixed Methods Feasibility Study of Extracorporeal Shockwave Therapy for Diabetic Foot Ulcers
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I Chetter, J Totty, Louise Hitchman, R Lathan, M Sidapra, Daniel Carradice, and George Davey Smith
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medicine.medical_specialty ,business.industry ,Extracorporeal shockwave therapy ,medicine.medical_treatment ,medicine ,Surgery ,business ,medicine.disease ,Diabetic foot - Abstract
Aim The purpose of this mixed methods feasibility study was to assess the feasibility of delivering ESWT to patients with DFUs. It also aimed to explore any potential clinical effect of ESWT on wound healing and investigate whether ESWT may offer any patient reported benefits. Method A single centre mixed methods feasibility study. Patients with a DFU who met the eligibility criteria underwent ESWT 3 times in over 7 days. Primary outcome was feasibility of delivering the intervention. Secondary outcomes included wound size, number of DFU healed at 12 weeks and quality of life. Semi-structured interviews explored participants experience of undergoing ESWT. Results 22.6% (24/106) of patients screened were recruited. The mean attendance to clinic was 90.9% and 65.1% to follow up. The mean score for acceptability and tolerability was 9.86 (SD 0.48, 95% CI 9.62-10.01) and 9.15 (SD 2.57, 95% CI 7.87-10.42) respectively. There were no serious adverse events or side effects. 45.5% of DFU healed during follow up and quality of life scores improved until 8 weeks. Key themes identified from the qualitative interviews were desire for the fast healing, improved quality of life, new treatments must be flexible and accessible on transport. Conclusions This study has shown it is possible to recruit and retain patents into this research. This study supports development of a large randomised control trial to determine the clinical and cost effectiveness of ESWT for DFU healing.
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- 2021
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17. Editor's Forward
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I Chetter
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- 2021
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18. Extracorporeal Shockwave Therapy for Peripheral Arterial Disease: A Review of the Potential Mechanisms of Action
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Joshua P. Totty, George Davey Smith, Ali Raza, I Chetter, and Amy E. Harwood
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Extracorporeal Shockwave Therapy ,medicine.medical_specialty ,Nitric Oxide Synthase Type III ,medicine.medical_treatment ,Population ,Neovascularization, Physiologic ,030204 cardiovascular system & hematology ,Peripheral Arterial Disease ,03 medical and health sciences ,0302 clinical medicine ,Vasculogenesis ,Internal medicine ,medicine ,Limb perfusion ,Humans ,030212 general & internal medicine ,education ,education.field_of_study ,business.industry ,Microcirculation ,Arteries ,Recovery of Function ,General Medicine ,medicine.disease ,Surgery ,body regions ,Stenosis ,Treatment Outcome ,Systematic review ,Lower Extremity ,Regional Blood Flow ,Extracorporeal shockwave therapy ,Cardiology ,Animal studies ,Arteriogenesis ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background Lower limb peripheral arterial disease (PAD) affects 20% of population over 65 years. Extracorporeal shockwave therapy (ESWT) has recently emerged as a novel, safe, and effective treatment option. This review aims to assess the mechanism of action by which ESWT improves symptoms in patients with PAD. Methods MEDLINE and EMBASE databases were searched in line with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Any article investigating the mechanism of action of ESWT in PAD was considered for inclusion. Results The systematic review of the current literature yielded 8 relevant articles reporting studies on animal models of hind limb ischemia or on patients with PAD. These articles described the effects of ESWT on angiogenesis, arteriogenesis, vasculogenesis, endothelial nitric oxide synthase, lower limb micro/macrocirculation, and atherosclerosis. Conclusion ESWT increases the expression of angiogenic, arteriogenic, and vasculogenic factors, reduces vessel wall stenosis, and improves limb perfusion. However, most of the evidence is based on animal studies. Future research should focus on elucidating the mechanism of action of ESWT in PAD patients.
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- 2017
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19. Cost-effectiveness analysis of a randomized clinical trial of early versus deferred endovenous ablation of superficial venous reflux in patients with venous ulceration
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D M Epstein, M S Gohel, F Heatley, X Liu, A Bradbury, R Bulbulia, N Cullum, I Nyamekye, K R Poskitt, S Renton, J Warwick, A H Davies, D Read, S Hargreaves, K Dhillon, M Anwar, A Liddle, H Brown, K Mercer, F Gill, A Liu, W Jepson, A Wormwell, H Rafferty, R Kaur, E Solomon, K Sritharan, R Velineni, C S Lim, A Busuttil, R Bootun, C Bicknell, M Jenkins, T Lane, E Serjeant, K Poskitt, J Waldron, G Wolfrey, F Slim, C Davies, L Emerson, M Grasty, M Whyman, C Wakeley, A Cooper, J Clapp, N Hogg, J Howard, J Dyer, S Lyes, D Teemul, K Harvey, M Pride, A Kindon, H Price, L Flemming, G Birch, H Holmes, J Weston, T Joseph, R Eiffel, T Ojimba, T Wilson, A Hodgson, L Robinson, J Todhunter, D Heagarty, A Mckeane, R McCarthy, J Barwell, C Northcott, A Elstone, C West, P Chong, D Gerrard, A Croucher, S Levy, C Martin, T Craig, D Carradice, A Firth, E Clarke, A Oswald, J Sinclair, I Chetter, J El-Sheikha, S Nandhra, C Leung, J Scott, N Dewhirst, J Woods, D Russell, R Darwood, M Troxler, J Thackeray, D Bell, D Watson, L Williamson, J Coulston, P Eyers, K Darvall, I Hunter, A Stewart, A Moss, J Rewbury, C Adams, L Vickery, L Foote, H Durman, F Venn, P Hill, K James, F Luxton, D Greenwell, K Roberts, S Mitchell, M Tate, H Mills, A Garnham, S Hobbs, D McIntosh, M Green, K Collins, J Rankin, P Poulton, V Isgar, M Trivedi, M Kafeza, S Parsapour, H Moore, M Najem, S Connarty, H Albon, C Lloyd, J Trant, R Vohra, J McCormack, J Marshall, V Hardy, R Rogoveanu, W Goff, R Gidda, S Merotra, S Shiralkar, A Jayatunga, R Pathak, A Rehman, K Randhawa, J Lewis, S Fullwood, S Jennings, S Cole, M Wall, C Ranaboldo, S Hulin, C Clarke, R Fennelly, R Cooper, R Boyes, C Draper, L Harris, D Mead, L Kelly, G Bate, H Davies, M Popplewell, M Claridge, M Gannon, H Khaira, M Scriven, T Wilmink, D Adam, H Nasr, D Dodd, S Nawaz, J Humphreys, M Barnes, J Sorrell, D Swift, P Phillips, H Trender, N Fenwick, D Rittoo, S Baker, R Mitchell, S Andrews, S Williams, J Stephenson, S Holloway, W Hayes, J Day, C Clayton, D Harding, A Thompson, A Gibson, Z Murphy, and T Smith
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Male ,medicine.medical_specialty ,Cost effectiveness ,Cost-Benefit Analysis ,Venous leg ulcer ,law.invention ,Time-to-Treatment ,Varicose Ulcer ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,law ,Medicine ,Humans ,030212 general & internal medicine ,health care economics and organizations ,Aged ,Wound Healing ,Intention-to-treat analysis ,business.industry ,030503 health policy & services ,Endovascular Procedures ,Reflux ,Cost-effectiveness analysis ,Middle Aged ,medicine.disease ,Quality-adjusted life year ,Surgery ,Treatment Outcome ,Catheter Ablation ,Female ,Quality-Adjusted Life Years ,0305 other medical science ,business - Abstract
Background Treatment of superficial venous reflux in addition to compression therapy accelerates venous leg ulcer healing and reduces ulcer recurrence. The aim of this study was to evaluate the costs and cost-effectiveness of early versus delayed endovenous treatment of patients with venous leg ulcers. Methods This was a within-trial cost-utility analysis with a 1-year time horizon using data from the EVRA (Early Venous Reflux Ablation) trial. The study compared early versus deferred endovenous ablation for superficial venous truncal reflux in patients with a venous leg ulcer. The outcome measure was the cost per quality-adjusted life-year (QALY) over 1 year. Sensitivity analyses were conducted with alternative methods of handling missing data, alternative preference weights for health-related quality of life, and per protocol. Results After early intervention, the mean(s.e.m.) cost was higher (difference in cost per patient £163(318) (€184(358))) and early intervention was associated with more QALYs at 1 year (mean(s.e.m.) difference 0·041(0·017)). The incremental cost-effectiveness ratio (ICER) was £3976 (€4482) per QALY. There was an 89 per cent probability that early venous intervention is cost-effective at a threshold of £20 000 (€22 546)/QALY. Sensitivity analyses produced similar results, confirming that early treatment of superficial reflux is highly likely to be cost-effective. Conclusion Early treatment of superficial reflux is highly likely to be cost-effective in patients with venous leg ulcers over 1 year. Registration number: ISRCTN02335796 (http://www.isrctn.com).
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- 2019
20. Compliance with NICE guidelines when commissioning varicose vein procedures
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D, Carradice, J, Forsyth, A, Mohammed, C, Leung, L, Hitchman, A E, Harwood, T, Wallace, G E, Smith, B, Campbell, and I, Chetter
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Original Article ,Original Articles ,health care economics and organizations - Abstract
Background Varicose veins impair quality of life and can lead to chronic leg ulcers. National Institute for Health and Care Excellence (NICE) guidelines (CG168) set out evidence‐based standards for patient management. In England, Clinical Commissioning Groups (CCGs) fund NHS care within their locality. The objective of this study was to evaluate CCGs' commissioning policies and compare them with CG168. Methods Searches were made for the published policies of all 206 English CCGs. They were reviewed for compliance with NICE guidelines and the associated quality standard. Areas of disagreement were analysed for themes. Results Some 203 CCGs (98·5 per cent) had a published policy and 190 (93·6 per cent) of these were published after publication of CG168. Only 73 of the policies (36·0 per cent) were compliant with CG168. Treatment was restricted on the basis of clinical disease severity in 119 CCGs (58·6 per cent); 29 (14·3 per cent) stipulated delay of treatment using a ‘trial’ of conservative treatment; 22 (10·8 per cent) used lifestyle‐related factors such as BMI and smoking status to ration treatment. Treatment was commissioned for uncomplicated symptomatic varicose veins in 87 CCGs (42·9 per cent), but some applied additional rationing mechanisms; 109 CCGs (53·7 per cent) would treat oedema, 183 (90·1 per cent) would treat skin and soft tissue damage, 202 (99·5 per cent) healed ulceration, and all would allow active ulcers to be treated. Discussion The majority of CCGs in England have commissioning policies that contradict NICE guidelines. Rationing strategies include disease severity, delay and patient lifestyle‐related factors, creating unwarranted geographical variation for varicose vein treatment, disregarding the NHS Constitution for England, and perhaps leading to an increase in costly treatment of chronic complications in the long term.
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- 2018
21. Correspondence
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T Wallace, J El-Sheikha, S Nandhra, C Leung, A Mohamed, A Harwood, G Smith, D Carradice, and I Chetter
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Varicose Veins ,Humans ,Surgery ,Laser Therapy - Published
- 2019
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22. Choices of stent and cerebral protection in the ongoing ACST-2 trial: a descriptive study
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D.D. de Waard, A. Halliday, G.J. de Borst, R. Bulbulia, A. Huibers, R. Casana, L.H. Bonati, V. Tolva, G. Fraedrich, B. Rantner, E. Gizewski, I. Gruber, J. Hendriks, P. Cras, P. Lauwers, P. van Scheil, F. Vermassen, I. Van Herzeele, M. Geenens, D. Hemelsoet, P. Lerut, B. Lambrecht, G. Saad, A. Peeters, M. Bosiers, E. da Silva, N. de Luccia, J.C. Sitrangulo, A.E.V. Estenssoro, C. Presti, I. Casella, J.A.T. Monteiro, W. Campos, P. Puech-Leao, V. Petrov, C. Bachvarov, M. Hill, A. Mitha, J. Wong, C.-W. Liu, L. Bao, C. Yu, I. Cvjetko, V. Vidjak, J. Fiedler, S. Ostry, L. Sterba, P. Kostal, R. Staffa, R. Vlachovsky, M. Privara, Z. Kriz, B. Vojtisek, P. Krupa, M. Reif, V. Benes, P. Buchvald, L. Endrych, V. Prochazka, M. Kuliha, D. Otahal, T. Hrbac, D. Netuka, M. Mohapl, F. Kramier, M. Eldessoki, H. Heshmat, F. Abd-Allah, V. Palmiste, S. Margus, T. Toomsoo, J.-P. Becquemin, P. Bergeron, T. Abdulamit, J.-M. Cardon, S. Debus, G. Thomalla, J. Fiehler, C. Gerloss, U. Grzyska, M. Storck, E. LaMacchia, H.H. Eckstein, H. Söllner, H. Berger, M. Kallmayer, H. Popert, A. Zimmermann, A. Guenther, C. Klingner, T. Mayer, J. Schubert, J. Zanow, D. Scheinert, U. Banning-Eichenseer, Y. Bausback, D. Branzan, S. Braünilch, J. Lenzer, A. Schidt, H. Staab, M. Ulirch, J. Barlinn, K. Haase, A. Abramyuk, U. Bodechtel, J. Gerber, C. Reeps, T. Pfeiffer, G. Torello, A. Cöster, A. Giannoukas, K. Spanos, M. Matsagkas, S. Koutias, S. Vasdekis, J. Kakisis, K. Moulakakis, A. Lazaris, C. Liapas, E. Brountzos, M. Lazarides, N. Ioannou, A. Polydorou, B. Fulop, E. Fako, E. Voros, M. Bodosi, T. Nemeth, P. Barzo, S. Pazdernyik, L. Entz, Z. Szeberin, E. Dosa, B. Nemes, Z. Jaranyi, S. Pazdernyia, P. Madhaban, A. Hoffman, E. Nikolsky, R. Beyar, R. Silingardi, A. Lauricella, G. Coppi, E. Nicoloci, N. Tusini, F. Strozzi, E. Vecchiati, M. Ferri, E. Ferrero, D. Psacharopulo, A. Gaggiano, A. Viazzo, L. Farchioni, G. Parlani, V. Caso, P. De Rangoy, F. Verzini, P. Castelli, M.L. DeLodovici, G. Carrafiello, A.M. Ierardi, G. Piffaretti, G. Nano, M.T. Occhiuto, G. Malacrida, D. Tealdi, S. Steghter, A. Stella, R. Pini, G. Faggioli, S. Sacca, M.D. Negri, M. Palombo, M.C. Perfumo, G.F. Fadda, H. Kasemi, C. Cernetti, D. Tonello, A. Visonà, N. Mangialardi, S. Ronchey, M.C. Altavista, S. Michelagnoli, E. Chisci, F. Speziale, L. Capoccia, P. Veroux, A. Giaquinta, F. Patti, R. Pulli, P. Boggia, D. Angiletta, G. Amatucci, F. Spinetti, F. Mascoli, E. Tsolaki, E. Civilini, B. Reimers, C. Setacci, G. Pogany, A. Odero, F. Accrocca, G. Bajardi, I. Takashi, E. Masayuki, E. Hidenori, B. Aidashova, N. Kospanov, S. Bakke, M. Skjelland, A. Czlonkowska, A. Kobayashi, R. Proczka, A. Dowzenko, W. Czepel, J. Polanski, P. Bialek, G. Ozkinis, M. Snoch-Ziólkiewicz, M. Gabriel, M. Stanisic, W. Iwanowski, P. Andziak, F.B. Gonçalves, V. Starodubtsev, P. Ignatenko, A. Karpenko, D. Radak, N. Aleksic, D. Sagic, L. Davidovic, I. Koncar, I. Tomic, M. Colic, D. Bartkoy, F. Rusnak, M. Gaspirini, P. Praczek, Z. Milosevic, V. Flis, A. Bergauer, N. Kobilica, K. Miksic, J. Matela, E. Blanco, M. Guerra, V. Riambau, P. Gillgren, C. Skioldebrand, N. Nymen, B. Berg, M. Delle, J. Formgren, T.B. Kally, P. Qvarfordt, G. Plate, H. Pärson, H. Lindgren, K. Bjorses, A. Gottsäter, M. Warvsten, T. Kristmundsson, C. Forssell, M. Malina, J. Holst, T. Kuhme, B. Sonesson, B. Lindblad, T. Kolbel, S. Acosta, L. Bonati, C. Traenka, M. Mueller, T. Lattman, M. Wasner, E. Mujagic, A. Von Hessling, A. Isaak, P. Stierli, T. Eugster, L. Mariani, C. Stippich, T. Wolff, T. Kahles, R. Toorop, F. Moll, R. Lo, A. Meershoek, A.K. Jahrome, A.W.F. Vos, W. Schuiling, R. Keunen, M. Reijnen, S. Macsweeney, N. McConachie, A. Southam, G. Stansby, T. Lees, D. Lambert, M. Clarke, M. Wyatt, S. Kappadath, L. Wales, R. Jackson, A. Raudonaitis, S. MacDonald, P. Dunlop, A. Brown, S. Vetrivel, M. Bajoriene, R. Gopi, C. McCollum, L. Wolowczyk, J. Ghosh, D. Seriki, R. Ashleigh, J. Butterfield, M. Welch, J.V. Smyth, D. Briley, U. Schulz, J. Perkins, L. Hands, W. Kuker, C. Darby, A. Handa, L. Sekaran, K. Poskitt, J. Morrison, P. Guyler, I. Grunwald, J. Brown, M. Jakeways, S. Tysoe, D. Hargroves, G. Gunathilagan, R. Insall, J. Senaratne, J. Beard, T. Cleveland, S. Nawaz, R. Lonsdale, D. Turner, P. Gaines, R. Nair, I. Chetter, G. Robinson, B. Akomolafe, J. Hatfield, K. Saastamoinen, J. Crinnion, A.A. Egun, J. Thomas, S. Drinkwater, S. D'Souza, G. Thomson, B. Gregory, S. Babu, S. Ashley, T. Joseph, R. Gibbs, G. Tebit, A. Mehrzad, P. Enevoldson, D. Mendalow, A. Parry, G. Tervitt, A. Clifton, M. Nazzel, R. Peto, H. Pan, J. Potter, R. Bullbulia, B. Mihaylova, M. Flather, A. Mansfield, D. Simpson, D. Thomas, W. Gray, B. Farrell, C. Davies, K. Rahimi, M. Gough, P. Cao, P. Rothwell, A. Belli, M. Mafham, W. Herrington, P. Sandercock, R. Gray, C. Shearman, A. Molyneux, A. Gray, A. Clarke, M. Sneade, L. Tully, W. Brudlo, M. Lay, A. Munday, C. Berry, S. Tochlin, J. Cox, R. Kurien, and J. Chester
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Plaque echolucency ,Time Factors ,medicine.medical_treatment ,Practice Patterns ,030204 cardiovascular system & hematology ,Severity of Illness Index ,law.invention ,0302 clinical medicine ,Randomized controlled trial ,law ,Risk Factors ,Occlusion ,Carotid artery stenosis ,Carotid Stenosis ,Practice Patterns, Physicians' ,Stroke ,Endarterectomy ,Plaque ,Atherosclerotic ,Endarterectomy, Carotid ,Endovascular Procedures ,Plaque, Atherosclerotic ,Treatment Outcome ,Cerebrovascular Circulation ,Stents ,Radiology ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,Carotid artery stenting ,medicine.medical_specialty ,Clinical Decision-Making ,education ,Cerebral protection devices ,Stent design ,Surgery ,Prosthesis Design ,Asymptomatic ,Embolic Protection Devices ,03 medical and health sciences ,Severity of illness ,medicine ,Humans ,Carotid ,Chi-Square Distribution ,Physicians' ,business.industry ,Patient Selection ,Stent ,METANÁLISE ,medicine.disease ,Asymptomatic Diseases ,Cerebrovascular Disorders ,Stenosis ,business ,030217 neurology & neurosurgery - Abstract
Objectives Several plaque and lesion characteristics have been associated with an increased risk for procedural stroke during or shortly after carotid artery stenting (CAS). While technical advancements in stent design and cerebral protection devices (CPD) may help reduce the procedural stroke risk, and anatomy remains important, tailoring stenting procedures according to plaque and lesion characteristics might be a useful strategy in reducing stroke associated with CAS. In this descriptive report of the ongoing Asymptomatic Carotid Surgery Trial-2 (ACST-2), it was assessed whether choice for stent and use or type of CPD was influenced by plaque and lesion characteristics. Materials and methods Trial patients who underwent CAS between 2008 and 2015 were included in this study. Chi-square statistics were used to study the effects of plaque echolucency, ipsilateral preocclusive disease (90–99%), and contralateral high-grade stenosis (>50%) or occlusion of the carotid artery on interventionalists' choice for stent and CPD. Differences in treatment preference between specialties were also analysed. Results In this study, 831 patients from 88 ACST-2 centres were included. Almost all procedures were performed by either interventional radiologists (50%) or vascular surgeons (45%). Plaque echolucency, ipsilateral preocclusive disease (90–99%), and significant contralateral stenosis (>50%) or occlusion did not affect the choice of stent or either the use of cerebral protection and type of CPD employed (i.e., filter/flow reversal). Vascular surgeons used a CPD significantly more often than interventional radiologists (98.6% vs. 76.3%; p < .001), but this choice did not appear to be dependent on patient characteristics. Conclusions In ACST-2, plaque characteristics and severity of stenosis did not primarily determine interventionalists' choice of stent or use or type of CPD, suggesting that other factors, such as vascular anatomy or personal and centre preference, may be more important. Stent and CPD use was highly heterogeneous among participating European centres.
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- 2017
23. Long-term outcomes of a randomized clinical trial of supervised exercise, percutaneous transluminal angioplasty or combined treatment for patients with intermittent claudication due to femoropopliteal disease
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George Davey Smith, I Chetter, P.C. McCollum, Fayyaz Mazari, Daniel Carradice, N Samuel, and Junaid Khan
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Male ,medicine.medical_specialty ,Percutaneous ,medicine.medical_treatment ,030204 cardiovascular system & hematology ,030230 surgery ,law.invention ,03 medical and health sciences ,Peripheral Arterial Disease ,0302 clinical medicine ,Restenosis ,Randomized controlled trial ,law ,Recurrence ,Statistical significance ,Angioplasty ,medicine ,Humans ,Ankle Brachial Index ,Popliteal Artery ,Aged ,Aged, 80 and over ,Ultrasonography, Doppler, Duplex ,business.industry ,Intermittent Claudication ,medicine.disease ,Combined Modality Therapy ,Intermittent claudication ,Surgery ,Exercise Therapy ,body regions ,Femoral Artery ,medicine.anatomical_structure ,Retreatment ,Female ,medicine.symptom ,Ankle ,business ,Claudication - Abstract
Background The aim was to compare the long-term outcomes of percutaneous transluminal angioplasty (PTA), a supervised exercise programme (SEP) and combined treatment (PTA + SEP) in patients with intermittent claudication owing to femoropopliteal disease. Methods Patients recruited to an RCT comparing these treatments were invited for long-term follow-up from 2010 to 2011. Indicators of limb ischaemia were recorded (ankle : brachial pressure index (ABPI) and treadmill walking distances). Duplex ultrasound imaging was also done. Patients completed Short Form 36 and VascuQol quality-of-life (QoL) questionnaires. Results Of 178 patients initially recruited to the trial, 139 were alive at the time of follow-up (PTA 46, SEP 47, PTA + SEP 46). Assessments were completed for 111 patients. Median time to follow-up was 5·2 (i.q.r. 3·8–7·4) years. Sixty-nine patients (62·2 per cent) were symptomatic; 18 (16·2 per cent) had experienced a major cardiovascular event since their last follow-up visit. Improvement was observed in ABPI in all groups. QoL outcomes were inconsistent across individual groups. PTA and PTA + SEP groups had a significantly higher ABPI than the SEP group. No significant difference was observed in treadmill walking distances, QoL outcomes, restenosis rates, and new ipsilateral and contralateral lesions on duplex imaging. Patients in all groups required reinterventions (PTA 14, SEP 10, PTA + SEP 6). The total number of reinterventions was higher after PTA (29) compared with SEP (17) and PTA + SEP (9), but failed to reach statistical significance. Conclusion PTA, SEP and combined treatment were equally effective long-term treatment options for patients with claudication owing to femoropopliteal disease. The addition of a SEP to PTA can reduce the rate of symptomatic restenosis and reintervention. Registration number: NCT00798850 (http://www.clinicaltrials.gov).
- Published
- 2016
24. Prospective cohort study of concomitant phlebectomy or sclerotherapy of varicosities
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I Chetter, C. Leung, Tom Wallace, and Daniel Carradice
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medicine.medical_specialty ,business.industry ,Concomitant ,medicine.medical_treatment ,medicine ,Sclerotherapy ,Surgery ,General Medicine ,business ,Prospective cohort study - Published
- 2015
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25. A Comparative Study of Aortic Wall Stress Using Finite Element Analysis for Ruptured and Non-ruptured Abdominal Aortic Aneurysms*1
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A VENKATASUBRAMANIAM, M FAGAN, T MEHTA, K MYLANKAL, B RAY, G KUHAN, I CHETTER, and P MCCOLLUM
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Surgery ,Cardiology and Cardiovascular Medicine - Published
- 2004
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26. Erratum to 'Choices of Stent and Cerebral Protection in the Ongoing ACST-2 Trial: A Descriptive Study' [Eur J Vasc Endovasc Surg 53 (2017) 617–625]
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D.D. de Waard, A. Halliday, G.J. de Borst, R. Bulbulia, A. Huibers, R. Casana, L.H. Bonati, V. Tolva, G. Fraedrich, B. Rantner, E. Gizewski, I. Gruber, J. Hendriks, P. Cras, P. Lauwers, P. van Scheil, F. Vermassen, I. Van Herzeele, M. Geenens, D. Hemelsoet, P. Lerut, B. Lambrecht, G. Saad, A. Peeters, M. Bosiers, E. da Silva, N. de Luccia, J.C. Sitrangulo, A.E.V. Estenssoro, C. Presti, I. Casella, J.A.T. Monteiro, W. Campos, P. Puech-Leao, V. Petrov, C. Bachvarov, M. Hill, A. Mitha, J. Wong, C.-W. Liu, L. Bao, C. Yu, I. Cvjetko, V. Vidjak, J. Fiedler, S. Ostry, L. Sterba, P. Kostal, R. Staffa, R. Vlachovsky, M. Privara, Z. Kriz, B. Vojtisek, P. Krupa, M. Reif, V. Benes, P. Buchvald, L. Endrych, V. Prochazka, M. Kuliha, D. Otahal, T. Hrbac, D. Netuka, M. Mohapl, F. Kramier, M. Eldessoki, H. Heshmat, F. Abd-Allah, V. Palmiste, S. Margus, T. Toomsoo, J.-P. Becquemin, P. Bergeron, T. Abdulamit, J.-M. Cardon, S. Debus, G. Thomalla, J. Fiehler, C. Gerloss, U. Grzyska, M. Storck, E. LaMacchia, H.H. Eckstein, H. Söllner, H. Berger, M. Kallmayer, H. Popert, A. Zimmermann, A. Guenther, C. Klingner, T. Mayer, J. Schubert, J. Zanow, D. Scheinert, U. Banning-Eichenseer, Y. Bausback, D. Branzan, S. Braünilch, J. Lenzer, A. Schidt, H. Staab, M. Ulirch, J. Barlinn, K. Haase, A. Abramyuk, U. Bodechtel, J. Gerber, C. Reeps, T. Pfeiffer, G. Torello, A. Cöster, A. Giannoukas, K. Spanos, M. Matsagkas, S. Koutias, S. Vasdekis, J. Kakisis, K. Moulakakis, A. Lazaris, C. Liapas, E. Brountzos, M. Lazarides, N. Ioannou, A. Polydorou, B. Fulop, E. Fako, E. Voros, M. Bodosi, T. Nemeth, P. Barzo, S. Pazdernyik, L. Entz, Z. Szeberin, E. Dosa, B. Nemes, Z. Jaranyi, S. Pazdernyia, P. Madhaban, A. Hoffman, E. Nikolsky, R. Beyar, R. Silingardi, A. Lauricella, G. Coppi, E. Nicoloci, N. Tusini, F. Strozzi, E. Vecchiati, M. Ferri, E. Ferrero, D. Psacharopulo, A. Gaggiano, A. Viazzo, L. Farchioni, G. Parlani, V. Caso, P. De Rangoy, F. Verzini, P. Castelli, M.L. DeLodovici, G. Carrafiello, A.M. Ierardi, G. Piffaretti, G. Nano, M.T. Occhiuto, G. Malacrida, D. Tealdi, S. Steghter, A. Stella, R. Pini, G. Faggioli, S. Sacca, M.D. Negri, M. Palombo, M.C. Perfumo, G.F. Fadda, H. Kasemi, C. Cernetti, D. Tonello, A. Visonà, N. Mangialardi, S. Ronchey, M.C. Altavista, S. Michelagnoli, E. Chisci, F. Speziale, L. Capoccia, P. Veroux, A. Giaquinta, F. Patti, R. Pulli, P. Boggia, D. Angiletta, G. Amatucci, F. Spinetti, F. Mascoli, E. Tsolaki, E. Civilini, B. Reimers, C. Setacci, G. Pogany, A. Odero, F. Accrocca, G. Bajardi, I. Takashi, E. Masayuki, E. Hidenori, B. Aidashova, N. Kospanov, S. Bakke, M. Skjelland, A. Czlonkowska, A. Kobayashi, R. Proczka, A. Dowzenko, W. Czepel, J. Polanski, P. Bialek, G. Ozkinis, M. Snoch-Ziólkiewicz, M. Gabriel, M. Stanisic, W. Iwanowski, P. Andziak, F.B. Gonçalves, V. Starodubtsev, P. Ignatenko, A. Karpenko, D. Radak, N. Aleksic, D. Sagic, L. Davidovic, I. Koncar, I. Tomic, M. Colic, D. Bartkoy, F. Rusnak, M. Gaspirini, P. Praczek, Z. Milosevic, V. Flis, A. Bergauer, N. Kobilica, K. Miksic, J. Matela, E. Blanco, M. Guerra, V. Riambau, P. Gillgren, C. Skioldebrand, N. Nymen, B. Berg, M. Delle, J. Formgren, T.B. Kally, P. Qvarfordt, G. Plate, H. Pärson, H. Lindgren, K. Bjorses, A. Gottsäter, M. Warvsten, T. Kristmundsson, C. Forssell, M. Malina, J. Holst, T. Kuhme, B. Sonesson, B. Lindblad, T. Kolbel, S. Acosta, L. Bonati, C. Traenka, M. Mueller, T. Lattman, M. Wasner, E. Mujagic, A. Von Hessling, A. Isaak, P. Stierli, T. Eugster, L. Mariani, C. Stippich, T. Wolff, T. Kahles, R. Toorop, F. Moll, R. Lo, A. Meershoek, A.K. Jahrome, A.W.F. Vos, W. Schuiling, R. Keunen, M. Reijnen, S. Macsweeney, N. McConachie, A. Southam, G. Stansby, T. Lees, D. Lambert, M. Clarke, M. Wyatt, S. Kappadath, L. Wales, R. Jackson, A. Raudonaitis, S. MacDonald, P. Dunlop, A. Brown, S. Vetrivel, M. Bajoriene, R. Gopi, C. McCollum, L. Wolowczyk, J. Ghosh, D. Seriki, R. Ashleigh, J. Butterfield, M. Welch, J.V. Smyth, D. Briley, U. Schulz, J. Perkins, L. Hands, W. Kuker, C. Darby, A. Handa, L. Sekaran, K. Poskitt, J. Morrison, P. Guyler, I. Grunwald, J. Brown, M. Jakeways, S. Tysoe, D. Hargroves, G. Gunathilagan, R. Insall, J. Senaratne, J. Beard, T. Cleveland, S. Nawaz, R. Lonsdale, D. Turner, P. Gaines, R. Nair, I. Chetter, G. Robinson, B. Akomolafe, J. Hatfield, K. Saastamoinen, J. Crinnion, A.A. Egun, J. Thomas, S. Drinkwater, S. D'Souza, G. Thomson, B. Gregory, S. Babu, S. Ashley, T. Joseph, R. Gibbs, G. Tebit, A. Mehrzad, P. Enevoldson, D. Mendalow, A. Parry, G. Tervitt, A. Clifton, M. Nazzel, R. Peto, H. Pan, J. Potter, R. Bullbulia, B. Mihaylova, M. Flather, A. Mansfield, D. Simpson, D. Thomas, W. Gray, B. Farrell, C. Davies, K. Rahimi, M. Gough, P. Cao, P. Rothwell, A. Belli, M. Mafham, W. Herrington, P. Sandercock, R. Gray, C. Shearman, A. Molyneux, A. Gray, A. Clarke, M. Sneade, L. Tully, W. Brudlo, M. Lay, A. Munday, C. Berry, S. Tochlin, J. Cox, R. Kurien, and J. Chester
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medicine.medical_specialty ,Surgery ,Cardiology and Cardiovascular Medicine ,business.industry ,Published Erratum ,medicine.medical_treatment ,Physical therapy ,medicine ,MEDLINE ,Stent ,Descriptive research ,business - Published
- 2017
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27. RS03. Short-term Efficacy and Safety Outcomes From a Randomized Controlled Trial of Extracorporeal Shockwave Therapy as a Novel Treatment for Intermittent Claudication
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Thomas Cayton, Amy E. Harwood, I Chetter, and George Davey Smith
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medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Intermittent claudication ,Surgery ,Term (time) ,law.invention ,Randomized controlled trial ,law ,Extracorporeal shockwave therapy ,medicine ,Physical therapy ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business - Published
- 2016
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28. 817 ANGIOTENSIN CONVERTING ENZYME INHIBITORS EFFECT ON ENDOTHELIAL DYSFUCNTION: A META-ANALYSIS OF RANDOMISED CONTROLLED TRIALS
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Y. Shahin, J. Khan, N. Samuel, and I. Chetter
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Internal Medicine ,General Medicine ,Cardiology and Cardiovascular Medicine - Published
- 2011
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29. Five-Year Results of a Randomised Clinical Trial Comparing Concomitant and Sequential Phlebectomy Following Endovenous Laser Ablation
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Daniel Carradice, Joseph El-Sheikha, Tom Wallace, Nehemiah Samuel, I Chetter, and Sandip Nandhra
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Clinical trial ,medicine.medical_specialty ,Text mining ,Laser ablation ,business.industry ,Concomitant ,medicine ,Surgery ,Cardiology and Cardiovascular Medicine ,business - Published
- 2014
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30. A randomised trial of EVLT versus surgery for varicose veins
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J. Hatfield, Daniel Carradice, I Chetter, and A. I. Mekako
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medicine.medical_specialty ,business.industry ,Varicose veins ,medicine ,Surgery ,medicine.symptom ,business - Published
- 2009
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31. 27.11 Percutaneous transluminal angioplasty for claudication: Alternative outcome measurements
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I Chetter
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medicine.medical_specialty ,Percutaneous ,business.industry ,Outcome measurements ,medicine ,Radiology, Nuclear Medicine and imaging ,Surgery ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,Transluminal Angioplasty ,business ,Claudication - Published
- 1997
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32. 8.13 The utilization of cold provocation thermography in upper limb vasospastic conditions
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I Chetter
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medicine.anatomical_structure ,business.industry ,Anesthesia ,Provocation test ,Thermography ,Medicine ,Upper limb ,Radiology, Nuclear Medicine and imaging ,Surgery ,Cardiology and Cardiovascular Medicine ,business - Published
- 1997
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33. 6.1 A prospective study on the quality of life of patients undergoing revascularization for critical lower limb ischaemia
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I Chetter
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Critical lower limb ischaemia ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,medicine ,Radiology, Nuclear Medicine and imaging ,Surgery ,Cardiology and Cardiovascular Medicine ,Revascularization ,Intensive care medicine ,Prospective cohort study ,business - Published
- 1997
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34. 112. The impact of percutaneous transluminal angioplasty (PTA) on limb blood flow and quality of life in patients with intermittent claudication
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I. Chetter, A. Parkin, R. C. Kester, M. Burniston, D. Kessel, and P. J. Robinson
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medicine.medical_specialty ,Percutaneous ,business.industry ,General Medicine ,Blood flow ,Transluminal Angioplasty ,Intermittent claudication ,Surgery ,Quality of life ,Medicine ,Radiology, Nuclear Medicine and imaging ,In patient ,medicine.symptom ,business - Published
- 1997
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35. Alpha-2 adrenoceptors in vibration white finger
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I. Chetter, D. Greenstein, R. C. Kester, and D.W. Ilsley
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medicine.medical_specialty ,Endocrinology ,business.industry ,Internal medicine ,Vibration white finger ,medicine ,Alpha 2 adrenoceptors ,Radiology, Nuclear Medicine and imaging ,Surgery ,Cardiology and Cardiovascular Medicine ,business ,medicine.disease - Published
- 1995
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36. Platelet aggregation following hand vibration
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R. C. Kester, D.W. Ilsley, I. Chetter, and D. Greenstein
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Vibration ,Platelet aggregation ,business.industry ,Biophysics ,Medicine ,Radiology, Nuclear Medicine and imaging ,Surgery ,Cardiology and Cardiovascular Medicine ,business - Published
- 1995
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37. Extracorporeal shockwave therapy for the treatment of lower limb intermittent claudication: study protocol for a randomised controlled trial (the SHOCKWAVE 1 trial)
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I Chetter, Daniel Carradice, Thomas Cayton, Joshua P. Totty, George Davey Smith, and Amy E. Harwood
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Research design ,Extracorporeal Shockwave Therapy ,medicine.medical_specialty ,Time Factors ,Visual analogue scale ,medicine.medical_treatment ,Population ,Neovascularization, Physiologic ,Medicine (miscellaneous) ,030204 cardiovascular system & hematology ,law.invention ,03 medical and health sciences ,Study Protocol ,Peripheral Arterial Disease ,0302 clinical medicine ,Randomized controlled trial ,Clinical Protocols ,Double-Blind Method ,law ,Surveys and Questionnaires ,medicine ,Humans ,Ankle Brachial Index ,Pharmacology (medical) ,030212 general & internal medicine ,education ,education.field_of_study ,Exercise Tolerance ,business.industry ,Recovery of Function ,Intermittent Claudication ,Intermittent claudication ,Treatment Outcome ,Tolerability ,England ,Lower Extremity ,Research Design ,Extracorporeal shockwave therapy ,Physical therapy ,Exercise Test ,medicine.symptom ,Claudication ,business - Abstract
Background Peripheral arterial disease (PAD) has a population prevalence of 4.6% with intermittent claudication (IC) presenting as one of the earliest and most common symptoms. PAD has detrimental effects on patients’ walking ability in terms of maximum walking distance (MWD) and pain-free walking distance (PFWD). Research has suggested extracorporeal shockwave therapy (ESWT) may induce angiogenesis in treated tissue; therefore, our objective is to assess the tolerability and efficacy of ESWT as a novel treatment of intermittent claudication. Methods/design Patients with unilateral claudication will be randomised to receive either ESWT (PiezoWave 2 shockwave system) or sham treatment to the calf muscle bulk three times per week for 3 weeks. All patients are blinded to treatment group, and all assessments will be performed by a masked assessor. Treatment tolerability using a visual analogue scale, ankle-brachial pressure index, MWD, PFWD and safety will all be formally assessed as outcome measures at baseline and at 4, 8 and 12 weeks follow-up. Discussion This trial will be the first of its kind in terms of methodology in relation to ESWT for intermittent claudication. A double-masked randomised controlled trial will provide useful information about the potential for the use of ESWT as a non-invasive treatment option and the need for further robust research. Trial registration ClinicalTrials.gov, NCT02652078. Registered on 17 October 2014. Electronic supplementary material The online version of this article (doi:10.1186/s13063-017-1844-4) contains supplementary material, which is available to authorized users.
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38. Effect of supervised exercise on physical function and balance in patients with intermittent claudication
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Natalie Vanicek, Fayyaz Mazari, Junaid Khan, Katherine A. Mockford, Patrick A. Coughlin, Risha Gohil, and I Chetter
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Male ,medicine.medical_specialty ,Poison control ,Walking ,Timed Up and Go test ,Physical medicine and rehabilitation ,Quality of life ,Humans ,Medicine ,Ankle Brachial Index ,Prospective Studies ,Postural Balance ,Aged ,Balance (ability) ,Analysis of Variance ,Exercise Tolerance ,business.industry ,Posturography ,Intermittent Claudication ,Middle Aged ,Intermittent claudication ,Exercise Therapy ,Treatment Outcome ,medicine.anatomical_structure ,Physical Fitness ,Exercise Test ,Quality of Life ,Physical therapy ,Female ,Surgery ,Observational study ,Ankle ,medicine.symptom ,business - Abstract
Background The aim of the study was to identify whether a standard supervised exercise programme (SEP) for patients with intermittent claudication improved specific measures of functional performance including balance. Methods A prospective observational study was performed at a single tertiary vascular centre. Patients with symptomatic intermittent claudication (Rutherford grades 1–3) were recruited to the study. Participants were assessed at baseline (before SEP) and 3, 6 and 12 months afterwards for markers of lower-limb ischaemia (treadmill walking distance and ankle : brachial pressure index), physical function (6-min walk, Timed Up and Go test, and Short Physical Performance Battery (SPPB) score), balance impairment using computerized dynamic posturography with the Sensory Organization Test (SOT), and quality of life (VascuQoL and Short Form 36). Results Fifty-one participants underwent SEP, which significantly improved initial treadmill walking distance (P = 0·001). Enrolment in a SEP also resulted in improvements in physical function as determined by 6-min maximum walking distance (P = 0·006), SPPB score (P < 0·001), and some domains of both generic (bodily pain, P = 0·025) and disease-specific (social domain, P = 0·039) quality of life. Significant improvements were also noted in balance, as determined by the SOT (P < 0·001). Conclusion Supervised exercise improves both physical function and balance impairment.
39. Endovenous laser ablation in the treatment of small saphenous varicose veins: does site of access influence early outcomes?
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I Chetter, Tom Wallace, Yousef Shahin, Daniel Carradice, Nehemiah Samuel, and Fayyaz Mazari
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Adult ,Male ,medicine.medical_specialty ,Time Factors ,Short form 36 ,Risk Assessment ,Severity of Illness Index ,Varicose Veins ,Small saphenous vein ,Patient satisfaction ,Quality of life ,Peripheral Nerve Injuries ,Recurrence ,Risk Factors ,Surveys and Questionnaires ,Varicose veins ,medicine ,Humans ,Saphenous Vein ,Clinical severity ,Paresthesia ,Prospective Studies ,Chi-Square Distribution ,business.industry ,Endovascular Procedures ,Reflux ,General Medicine ,Middle Aged ,Surgery ,Treatment Outcome ,Ambulatory Surgical Procedures ,England ,Patient Satisfaction ,Ambulatory ,Quality of Life ,Female ,Laser Therapy ,Lasers, Semiconductor ,medicine.symptom ,Phlebitis ,Cardiology and Cardiovascular Medicine ,business - Abstract
Objective: The study was performed to evaluate the clinical and technical efficacy of endovenous laser ablation (EVLA) of small saphenous varicosities, particularly in relation to the site of endovenous access. Methods: Totally 59 patients with unilateral saphenopopliteal junction incompetence and small saphenous vein reflux underwent EVLA (810 nm, 14 W diode laser) with ambulatory phlebectomies. Small saphenous vein access was gained at the lowest site of truncal reflux. Patients were divided into 2 groups: access gained above mid-calf (AMC, n = 33) and below mid-calf (BMC, n = 26) levels. Outcomes included Venous Clinical Severity Scores (VCSS), Aberdeen Varicose Vein Questionnaire (AVVQ), patient satisfaction, complications, and recurrence rates. Results: Both groups demonstrated significant improvement in VCSS, AVVQ, generic quality of life Short Form 36, and EuroQol scores ( P < .05) up to 1 year. No differences were seen between AMC and BMC groups for complications (phlebitis: 2 [6%] and 1 [3.8%], P > .05; paresthesia: 2 [6%] and 5 [19%], P = .223) and recurrence (3 [9%] and 1 [3.8%], P = .623), respectively. Conclusions: The site of access in our study does not appear to influence complications specifically neural injury or recurrence rates.
40. Delays to Revascularisation and Outcomes of Non-elective Admissions for Chronic Limb Threatening Ischaemia: a UK Population Based Cohort Study.
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Birmpili P, Li Q, Johal AS, Atkins E, Waton S, Pherwani AD, Williams R, Chetter I, Boyle JR, and Cromwell DA
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Objective: Major amputation and death are significant outcomes after lower limb revascularisation for chronic limb threatening ischaemia (CLTI), but there is limited evidence on their association with the timing of revascularisation. The aim of this study was to examine the relationship between time from non-elective admission to revascularisation and one year outcomes for patients with CLTI., Methods: This was an observational, population based cohort study of patients aged ≥ 50 years with CLTI admitted non-electively for infra-inguinal revascularisation procedures in English NHS hospitals from January 2017 to December 2019 recorded in the Hospital Episode Statistics database. Outcomes were death and ipsilateral major amputation rate at one year. Logistic regression models were fitted to explore the relationship between time to revascularisation and death, adjusted for patient and admission factors. For major amputation, multinomial logistic regression models were used to account for the competing risk of death., Results: A total of 10 183 patients (median age 75 years) were included in the analysis, of which 67.1% (n = 6 831) were male and 57.6% had diabetes. In patients with tissue loss, the unadjusted one year mortality rate was 30.0% (95% confidence interval [CI] 28.9 - 31.0%), and for every one day increase in time from admission to revascularisation, the adjusted odds of one year mortality increased by 3% (odds ratio 1.03, 95% CI 1.02 - 1.04). In the absence of tissue loss, the unadjusted one year mortality rate was 19.9% (95% CI 18.4 - 21.4%) and there was no evidence of an association with time to revascularisation. There was also no significant association between the time to revascularisation and risk of ipsilateral major amputation at one year irrespective of tissue loss., Conclusion: Patients undergoing infra-inguinal revascularisation during non-elective admissions for CLTI have high one year major amputation and mortality rates. Longer time from admission to revascularisation was independently associated with higher mortality in patients with tissue loss, but not in those without., (Copyright © 2024. Published by Elsevier B.V.)
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- 2024
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41. The effectiveness of waxing or epilation compared to conventional methods of hair removal in reducing the incidence of surgical site infections: a systematic review and meta-analysis.
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Cutteridge J, Garrido P, Staniland T, Lim A, Totty J, Lathan R, Smith G, and Chetter I
- Abstract
Background: Surgical site infections (SSIs) pose a significant challenge to healthcare systems by elevating patient morbidity and mortality and driving up financial costs. Preoperative skin preparation is crucial for preventing SSIs; however, certain traditional methods of hair removal have been found to increase the risk of SSI development. Mechanical epilation and waxing constitute two relatively explored methods of hair removal, which may hold potential to accelerate wound healing due to the activation of stem cells within hair follicles. This review assesses the efficacy of preoperative hair removal via waxing and mechanical epilation in reducing SSI incidence., Methods: This systematic review was prospectively registered with PROSPERO (ref: CRD42023423798) and a protocol previously published in a peer-reviewed journal. All findings are reported according to PRISMA guidelines. A comprehensive search of Medline, Embase, CENTRAL, ClinicalTrials.gov and CINAHL. Inclusion criteria encompassed adult patients undergoing any surgical procedure, comparing waxing or epilation against other hair removal methods or no hair removal, with SSI incidence as the primary outcome. There was no restriction on study size or quality to ensure a comprehensive literature evaluation., Results: The review found no studies meeting the selection criteria out of 576 records screened., Discussion/conclusion: This review has identified no literature regarding the use of waxing and mechanical epilation as methods of preoperative hair removal. The lack of experimental evidence combined with the potential physiological advantages of these techniques indicate that this could be a valuable area of future research. These techniques may represent novel approaches to SSI prevention, particularly beneficial in high-risk surgical disciplines like vascular surgery., Systematic Review Registration: https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=423798, PROSPERO (CRD42023423798)., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (© 2024 Cutteridge, Garrido, Staniland, Lim, Totty, Lathan, Smith and Chetter.)
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- 2024
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42. Patient experience of the process to diagnosis of chronic limb-threatening ischaemia: A qualitative study.
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Atkins E, Kellar I, Birmpili P, Boyle JR, Pherwani AD, Chetter I, and Cromwell DA
- Subjects
- Humans, Male, Female, Middle Aged, Aged, Delayed Diagnosis, Chronic Limb-Threatening Ischemia diagnosis, Chronic Limb-Threatening Ischemia psychology, Adult, Ischemia diagnosis, Ischemia psychology, Aged, 80 and over, Chronic Disease, Interviews as Topic, Qualitative Research
- Abstract
Introduction: Delays exist at each stage of the chronic limb-threatening ischaemia (CLTI) care pathway, but there is little known about patient factors influencing delay to diagnosis of CLTI. This study explores the experiences and perceptions of patients recently diagnosed with CLTI., Methods: A qualitative interview study was conducted. Sixteen participants underwent semi-structured interviews. Reflexive thematic analysis was performed on the data, aiming to understand factors which can influence delay in the CLTI care pathway., Results: Five interrelated themes were developed: CLTI is a devastating condition; Reluctance to ask for help; When we are empowered we get better care; Luck plays a role in the process to diagnosis; and Vascular units can do better, comprising sub-themes of information transfer-consider communication and arterial versus non-arterial centres-proximity isn't everything., Conclusions: The five themes generated from the interview data describe factors relevant to delay given meaning by participants who have lived experience of CLTI. Theme content should be noted by clinicians, commissioners and providers looking to improve care pathways for patients with CLTI. The importance of awareness for the public, patients and clinicians linked ideas in some themes and interventions to raise awareness should be considered., (© 2024 The Author(s). Journal of Foot and Ankle Research published by John Wiley & Sons Australia, Ltd on behalf of Australian Podiatry Association and The Royal College of Podiatry.)
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- 2024
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43. Correction: Protocol: The role of defunctioning stoma prior to neoadjuvant therapy for locally advanced colonic and rectal cancer-A systematic review.
- Author
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Mesri M, Hitchman L, Yiasemidou M, Quyn A, Jayne D, and Chetter I
- Abstract
[This corrects the article DOI: 10.1371/journal.pone.0275025.]., (Copyright: © 2024 Mesri et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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44. The incidence of surgical site infection following major lower limb amputation: A systematic review.
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Al-Saadi N, Al-Hashimi K, Popplewell M, Fabre I, Gwilym BL, Hitchman L, Chetter I, Bosanquet DC, and Wall ML
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- Humans, Incidence, Male, Aged, Female, Middle Aged, Aged, 80 and over, Adult, Peripheral Arterial Disease surgery, Peripheral Arterial Disease epidemiology, Risk Factors, Surgical Wound Infection epidemiology, Surgical Wound Infection etiology, Amputation, Surgical adverse effects, Amputation, Surgical statistics & numerical data, Lower Extremity surgery
- Abstract
Surgical site infections (SSIs) following major lower limb amputation (MLLA) in vascular patients are a major source of morbidity. The objective of this systematic review was to determine the incidence of SSI following MLLA in vascular patients. This review was prospectively registered with the International Prospective Register of Systematic Reviews (CRD42023460645). Databases were searched without date restriction using a pre-defined search strategy. The search identified 1427 articles. Four RCTs and 21 observational studies, reporting on 50 370 MLLAs, were included. Overall SSI incidence per MLLA incision was 7.2% (3628/50370). The incidence of SSI in patients undergoing through-knee amputation (12.9%) and below-knee amputation (7.5%) was higher than the incidence of SSI in patients undergoing above-knee amputation, (3.9%), p < 0.001. The incidence of SSI in studies focusing on patients with peripheral arterial disease (PAD), diabetes or including patients with both was 8.9%, 6.8% and 7.2%, respectively. SSI is a common complication following MLLA in vascular patients. There is a higher incidence of SSI associated with more distal amputation levels. The reported SSI incidence is similar between patients with underlying PAD and diabetes. Further studies are needed to understand the exact incidence of SSI in vascular patients and the factors which influence this., (© 2024 The Author(s). International Wound Journal published by Medicalhelplines.com Inc and John Wiley & Sons Ltd.)
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- 2024
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45. Extracorporeal Shockwave for Intermittent Claudication and Quality of Life: A Randomized Clinical Trial.
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Cai P, Pymer S, Ibeggazene S, Raza A, Hitchman L, Chetter I, and Smith G
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- Humans, Male, Female, Double-Blind Method, Aged, Middle Aged, Treatment Outcome, Intermittent Claudication therapy, Quality of Life, Extracorporeal Shockwave Therapy methods
- Abstract
Importance: Intermittent lower limb claudication limits function and quality of life. Supervised exercise programs are not readily available, and a noninvasive alternative is needed., Objective: To assess extracorporeal corporeal shockwave therapy in improving quality of life in patients with claudication., Design, Setting, and Participants: In this double-blind, placebo-controlled randomized clinical trial, patients in the outpatient setting at a single tertiary center for vascular surgery were randomized in a 1:1 ratio to extracorporeal shockwave therapy or placebo therapy with no shockwaves delivered. Recruitment was between June 2015 and January 2020, with 12-week follow-up ending in March 2020. A convenience sample of patients with claudication and conservative treatment requirements who refused or were unable to participate in supervised exercise were eligible. Patients receiving anticoagulation therapy or with an active cancer were excluded. Of 522 patients screened, 389 were eligible, 138 were enrolled, and 110 completed follow-up and were included in the primary analysis. Statistical analysis was completed by May 2021., Intervention: In the intervention group, patients received 100 impulses of 0.1mJ/mm/cm2 in an area of the gastrocnemius muscle 3 times weekly for 3 weeks. The steps for treatment were replicated for the control group without delivering the treatment., Main Outcomes and Measures: The primary outcome was the Physical Functioning domain of the 36-item Short-Form Quality of Life Questionnaire at 12-week follow-up. Secondary outcomes included walking distances, ankle brachial pressure index, and other quality-of-life measures., Results: Of 138 patients recruited and randomized, 92 (67%) were male, and the mean (SD) age of the study population was 67 (9.6) years. The intervention group had a significantly higher physical function score at 12 weeks (estimated median difference 3.8; 95% CI, 0.0-7.7; P = .03). However, this significance did not remain when adjusting for covariates. At 12 weeks, the intervention group had significantly longer pain-free and maximum walking distances (pain-free estimated median difference, 34.1, 95% CI, 11.4-56.8; P = .004; maximum estimated median difference, 51.4; 95% CI, 10.7-86.5; P = .01)., Conclusions and Relevance: To our knowledge, this is the first double-blind, placebo-controlled, randomized clinical trial to consider extracorporeal shockwave therapy for the management of intermittent claudication. It demonstrated efficacy for walking distances, may have a positive effect on quality of life, and may provide a safe, noninvasive alternative therapy for patients with intermittent claudication., Trial Registration: ClinicalTrials.gov Identifier: NCT02652078.
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- 2024
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46. Understanding delays in chronic limb-threatening ischaemia care: Application of the theoretical domains framework to identify factors affecting primary care clinicians' referral behaviours.
- Author
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Atkins E, Birmpili P, Kellar I, Johal AS, Li Q, Waton S, Boyle JR, Pherwani AD, Chetter I, and Cromwell DA
- Subjects
- Humans, Chronic Disease, Male, Female, Attitude of Health Personnel, Qualitative Research, Middle Aged, Time-to-Treatment, Delayed Diagnosis, Adult, Referral and Consultation, Ischemia therapy, Ischemia psychology, Primary Health Care
- Abstract
Introduction: Patients in the community with suspected Chronic limb-threatening ischaemia (CLTI) should be urgently referred to vascular services for investigation and management. The Theoretical Domains Framework (TDF) allows identification of influences on health professional behaviour in order to inform future interventions. Here, the TDF is used to explore primary care clinicians' behaviours with regards to recognition and referral of CLTI., Methods: Semi-structured interviews were conducted with 20 podiatrists, nurses and general practitioners in primary care. Directed content analysis was performed according to the framework method. Utterances were coded to TDF domains, and belief statements were defined by grouping similar utterances. Relevance of domains was confirmed according to belief frequency, presence of conflicting beliefs and the content of the beliefs indicating relevance., Results: Nine TDF domains were identified as relevant to primary care clinicians: Knowledge, Environmental context and resources, Memory, Decision and attention processes, Beliefs about capabilities, Skills, Emotions, Reinforcement and Behavioural regulation. Relationships across domains were identified, including how primary care clinician confidence and working in a highly pressurized environment can affect behaviour., Conclusion: We have identified key barriers and enablers to timely recognition and referral behaviour. These beliefs identify targets for theory-driven behaviour change interventions to reduce delays in CLTI pathways., (© 2024 The Authors. Journal of Foot and Ankle Research published by John Wiley & Sons Australia, Ltd on behalf of Australian Podiatry Association and The Royal College of Podiatry.)
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- 2024
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47. Telemedicine for sustainable postoperative follow-up: a prospective pilot study evaluating the hybrid life-cycle assessment approach to carbon footprint analysis.
- Author
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Lathan R, Hitchman L, Walshaw J, Ravindhran B, Carradice D, Smith G, Chetter I, and Yiasemidou M
- Abstract
Introduction: Surgical site infections (SSI) are the most common healthcare-associated infections; however, access to healthcare services, lack of patient awareness of signs, and inadequate wound surveillance can limit timely diagnosis. Telemedicine as a method for remote postoperative follow-up has been shown to improve healthcare efficiency without compromising clinical outcomes. Furthermore, telemedicine would reduce the carbon footprint of the National Health Service (NHS) through minimising patient travel, a significant contributor of carbon dioxide equivalent (CO
2 e) emissions. Adopting innovative approaches, such as telemedicine, could aid in the NHS Net-Zero target by 2045. This study aimed to provide a comprehensive analysis of the feasibility and sustainability of telemedicine postoperative follow-up for remote diagnosis of SSI., Methods: Patients who underwent a lower limb vascular procedure were reviewed remotely at 30 days following the surgery, with a combined outcome measure (photographs and Bluebelle Wound Healing Questionnaire). A hybrid life-cycle assessment approach to carbon footprint analysis was used. The kilograms of carbon dioxide equivalent (kgCO2 e) associated with remote methods were mapped prospectively. A simple outpatient clinic review, i.e., no further investigations or management required, was modelled for comparison. The Department of Environment, Food, and Rural Affairs (DEFRA) conversion factors plus healthcare specific sources were used to ascertain kgCO2 e. Patient postcodes were applied to conversion factors based upon mode of travel to calculate kgCO2 e for patient travel. Total and median (interquartile range) carbon emissions saved were presented for both patients with and without SSI., Results: Altogether 31 patients (M:F 2.4, ±11.7 years) were included. The median return distance for patient travel was 42.5 (7.2-58.7) km. Median reduction in emissions using remote follow-up was 41.2 (24.5-80.3) kgCO2 e per patient ( P < 0.001). The carbon offsetting value of remote follow-up is planting one tree for every 6.9 patients. Total carbon footprint of face-to-face follow-up was 2,895.3 kgCO2 e, compared with 1,301.3 kgCO2 e when using a remote-first approach ( P < 0.001). Carbon emissions due to participants without SSI were 700.2 kgCO2 e by the clinical method and 28.8 kgCO2 e from the remote follow-up., Discussion: This model shows that the hybrid life-cycle assessment approach is achievable and reproducible. Implementation of an asynchronous digital follow-up model is effective in substantially reducing the carbon footprint of a tertiary vascular surgical centre. Further work is needed to corroborate these findings on a larger scale, quantify the impact of telemedicine on patient's quality of life, and incorporate kgCO2 e into the cost analysis of potential SSI monitoring strategies., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The authors declared that they were an editorial board member of Frontiers at the time of submission. This had no impact on the peer review process and the final decision., (© 2024 Lathan, Hitchman, Walshaw, Ravindhran, Carradice, Smith, Chetter and Yiasemidou.)- Published
- 2024
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48. The symptom to assessment pathway for suspected chronic limb-threatening ischaemia (CLTI) affects quality of care: a process mapping exercise.
- Author
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Atkins E, Kellar I, Birmpili P, Waton S, Li Q, Johal AS, Boyle JR, Pherwani AD, Chetter I, and Cromwell DA
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- Humans, England, Process Assessment, Health Care, Referral and Consultation, Chronic Limb-Threatening Ischemia, General Practitioners
- Abstract
Background: Delays in the pathway from first symptom to treatment of chronic limb-threatening ischaemia (CLTI) are associated with worse mortality and limb loss outcomes. This study examined the processes used by vascular services to provide urgent care to patients with suspected CLTI referred from the community., Methods: Vascular surgery units from various regions in England were invited to participate in a process mapping exercise. Clinical and non-clinical staff at participating units were interviewed, and process maps were created that captured key staff and structures used to create processes for referral receipt, triage and assessment at the units., Results: Twelve vascular units participated, and process maps were created after interviews with 45 participants. The units offered multiple points of access for urgent referrals from general practitioners and other community clinicians. Triage processes were varied, with units using different mixes of staff (including medical staff, podiatrists and s) and this led to processes of varying speed. The organisation of clinics to provide slots for 'urgent' patients was also varied, with some adopting hot clinics, while others used dedicated slots in routine clinics. Service organisation could be further complicated by separate processes for patients with and without diabetes, and because of the organisation of services regionally into vascular networks that had arterial and non-arterial centres., Conclusions: For referred patients with symptoms of CLTI, the points of access, triage and assessment processes used by vascular units are diverse. This reflects the local context and ingenuity of vascular units but can lead to complex processes. It is likely that benefits might be gained from simplification., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2024. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
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- 2024
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49. Molecular mechanisms of action of negative pressure wound therapy: a systematic review.
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Ravindhran B, Schafer N, Howitt A, Carradice D, Smith G, and Chetter I
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- Animals, Wound Healing genetics, Cytokines, Intercellular Signaling Peptides and Proteins, Transforming Growth Factor beta, Negative-Pressure Wound Therapy
- Abstract
Negative pressure wound therapy (NPWT) has significantly advanced wound care and continues to find new applications. Its effects at a molecular level however, remain a subject of debate. The aim of this systematic review is to summarize the current evidence regarding the molecular mechanisms of action of NPWT. Medline, Embase, EBSCO databases and clinical trial registries were searched from inception to January 2023. Clinical studies, animal models or in-vitro studies that quantitatively or semi-quantitatively evaluated the influence of NPWT on growth factors, cytokine or gene-expression in the circulation or wound-bed were included. Risk of Bias assessment was performed using the RoBANS tool for non-randomized studies, the COCHRANE's Risk of Bias 2(ROB-2) tool for randomized clinical studies, OHAT tool for in-vitro studies or the SYRCLE tool for animal model studies. A descriptive summary was collated and the aggregated data is presented as a narrative synthesis. This review included 19 clinical studies, 11 animal studies and 3 in-vitro studies. The effects of NPWT on 43 biomarkers and 17 gene expressions were studied across included studies. NPWT stimulates modulation of numerous local and circulating cytokines and growth factor expressions to promote an anti-inflammatory profile. This is most likely achieved by downregulation of TNF α , upregulation of VEGF, TGF- β and fibronectin.
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- 2023
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50. A vascular multi-arm multi-stage trial to prevent groin wound surgical site infection: A feasibility survey.
- Author
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Popplewell MA, Gwilym BL, Benson RA, Juszczak M, Bosanquet D, Pinkney TD, Chetter I, and Wall M
- Subjects
- Humans, Surgical Wound Infection prevention & control, Feasibility Studies, Vascular Surgical Procedures adverse effects, Surveys and Questionnaires, Groin surgery, Surgical Wound
- Abstract
Surgical site infection (SSI) is common following arterial surgery involving a groin incision. There is a lack of evidence regarding interventions to prevent groin wound SSI, therefore, a survey of vascular clinicians was undertaken to assess current opinion and practice, equipoise and feasibility of a randomised controlled trial (RCT). Participants at the Vascular Society of Great Britain and Ireland 2021 Annual Scientific Meeting were surveyed regarding three separate interventions designed to prevent SSI in the groin; impregnated incise drapes, diakylcarbomoyl chloride dressings and antibiotic impregnated collagen sponges. Results were collated via an online survey using the Research Electronic Data Capture platform. Seventy-five participants completed the questionnaire, most were consultant vascular surgeons (50/75, 66.7%). The majority agree that groin wound SSI is a major problem (73/75, 97.3%), and would be content using either of the three interventions (51/61, 83.6%) and had clinical equipoise to randomise patients to any of the three interventions versus standard of care (70/75, 93.3%). There was some reluctance to not use impregnated incise drapes as may be considered "standard of care". Groin wound SSI is perceived as major problem in vascular surgery, and a multicentre RCT of three preventative interventions appears acceptable to vascular surgeons., (© 2023 The Authors. International Wound Journal published by Medicalhelplines.com Inc and John Wiley & Sons Ltd.)
- Published
- 2023
- Full Text
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