Imperial College London

MrColinBicknell

Faculty of MedicineDepartment of Surgery & Cancer

Clinical Senior Lecturer
 
 
 
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Contact

 

+44 (0)20 3312 6428colin.bicknell

 
 
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Location

 

1020Queen Elizabeth the Queen Mother Wing (QEQM)St Mary's Campus

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Summary

 

Publications

Publication Type
Year
to

147 results found

Desender L, Van Herzeele I, Lachat M, Duchateau J, Bicknell C, Teijink J, Heyligers J, Vermassen Fet al., 2017, A Multicentre Trial of Patient specific Rehearsal Prior to EVAR: Impact on Procedural Planning and Team Performance, EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY, Vol: 53, Pages: 354-361, ISSN: 1078-5884

JOURNAL ARTICLE

Judah G, Darzi A, Vlaev I, Gunn L, King D, King D, Valabhji J, Bishop L, Brown A, Duncan G, Fogg A, Harris G, Tyacke P, Bicknell Cet al., 2017, Incentives in Diabetic Eye Assessment by Screening (IDEAS) trial: a three-armed randomised controlled trial of financial incentives, Health Services and Delivery Research, Vol: 5, Pages: 1-60, ISSN: 2050-4349

Background:The UK national diabetic eye screening (DES) programme invites diabetic patients aged>12 years annually. Simple and cost-effective methods are needed to increase screening uptake. This trialtests the impact on uptake of two financial incentive schemes, based on behavioural economic principles.Objectives:To test whether or not financial incentives encourage screening attendance. Secondarily tounderstand if the type of financial incentive scheme used affects screening uptake or attracts patients witha different sociodemographic status to regular attenders. If financial incentives were found to improveattendance, then a final objective was to test cost-effectiveness.Design:Three-armed randomised controlled trial.Setting:DES clinic within St Mary’s Hospital, London, covering patients from the areas of Kensington,Chelsea and Westminster.Participants:Patients aged≥16 years, who had not attended their DES appointment for≥2 years.Interventions:(1) Fixed incentive–invitation letter and £10 for attending screening; (2) probabilistic(lottery) incentive–invitation letter and 1% chance of winning £1000 for attending screening; and(3) control–invitation letter only.Main outcome measures:The primary outcome was screening attendance. Rates for control versus fixedand lottery incentive groups were compared using relative risk (RR) and risk difference with corresponding95% confidence intervals (CIs).Results:A total of 1274 patients were eligible and randomised; 223 patients became ineligible beforeinvite and 1051 participants were invited (control,n=435; fixed group,n=312; lottery group,n=304).Thirty-four (7.8%, 95% CI 5.29% to 10.34%) control, 17 (5.5%, 95% CI 2.93% to 7.97%) fixed groupand 10 (3.3%, 95% CI 1.28% to 5.29%) lottery group participants attended. Participants offered incentives were 44% less likely to attend screening than controls (RR 0.56, 95% CI 0.34 to 0.92). Examining incentivegroups separately, the lottery gr

JOURNAL ARTICLE

Lear R, Godfrey AD, Riga C, Norton C, Vincent C, Bicknell CDet al., 2017, The Impact of System Factors on Quality and Safety in Arterial Surgery: A Systematic Review, EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY, Vol: 54, Pages: 79-93, ISSN: 1078-5884

JOURNAL ARTICLE

Lee S-L, 2017, Examining the use of a novel dynamic endovascular simulator to facilitate intelligent localization and robotic technologies, Vascular-Societies Annual Scientific Meeting, Publisher: WILEY, Pages: 16-16, ISSN: 0007-1323

CONFERENCE PAPER

Normahani P, Kwasnicki R, Bicknell C, Allen L, Jenkins MP, Gibbs R, Cheshire N, Darzi A, Riga Cet al., 2017, Wearable Sensor Technology Efficacy in Peripheral Vascular Disease (wSTEP): A Randomized Controlled Trial., Ann Surg

OBJECTIVE: To evaluate the effect of using wearable activity monitors (WAMs) in patients with intermittent claudication (IC) within a single-center randomized controlled trial. BACKGROUND: WAMs allow users to set daily activity targets and monitor their progress. They may offer an alternative treatment to supervised exercise programs (SEPs) for patients with IC. METHODS: Thirty-seven patients with IC were recruited and randomized into intervention or control group. The intervention consisted of a feedback-enabled, wrist-worn activity monitor (WAM) in addition to access to SEP. The control group was given access to SEP only. The outcome measures were maximum walking distance (MWD), claudication distance (CD), and quality of life as measured by the VascuQol questionnaire. Participants were assessed upon recruitment, and at 3, 6, and 12 months. RESULTS: Patients in the WAM group showed significant improvement in MWD at 3 and 6 months (80-112 m, to 178 m; P < 0.001), which was sustained at 12 months. The WAM group also increased CD (40 vs 110 m; P < 0.001) and VascuQol score (4.7 vs 5.8; P = 0.004). The control group saw a temporary increase in VascuQol score at 6 months (4.5 vs 4.7; P = 0.028), but no other improvements in MWD or CD were observed. Significantly higher improvements in MWD were seen in the WAM group compared with that in the control group at 6 months (82 vs -5 m; P = 0.009, r = 0.47) and 12 months (69 vs 7.5 m; P = 0.011, r = 0.52). CONCLUSIONS: The study demonstrates the significant, sustained benefit of WAM-led technologies for patients with IC. This potentially resource-sparing intervention is likely to provide a valuable adjunct or alternative to SEP.

JOURNAL ARTICLE

Perera AH, Riga CV, Monzon L, Gibbs RG, Bicknell CD, Hamady Met al., 2017, Robotic Arch Catheter Placement Reduces Cerebral Embolization During Thoracic Endovascular Aortic Repair (TEVAR), EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY, Vol: 53, Pages: 362-369, ISSN: 1078-5884

JOURNAL ARTICLE

Perera AH, Riga CV, Monzon L, Gibbs RG, Bicknell CD, Hamady Met al., 2017, Response to Commentary on "Robotic Arch Catheter Placement Reduces Cerebral Embolisation During Thoracic Endovascular Aortic Repair (TEVAR)", EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY, Vol: 54, Pages: 126-127, ISSN: 1078-5884

JOURNAL ARTICLE

Rafii-Tari H, Payne CJ, Bicknell C, Kwok K-W, Cheshire NJW, Riga C, Yang G-Zet al., 2017, Objective Assessment of Endovascular Navigation Skills with Force Sensing, ANNALS OF BIOMEDICAL ENGINEERING, Vol: 45, Pages: 1315-1327, ISSN: 0090-6964

JOURNAL ARTICLE

Ribe L, Bicknell CD, Gibbs RG, Burfitt N, Jenkins MP, Cheshire N, Hamady Met al., 2017, Long-term results of intra-arterial onyx injection for type II endoleaks following endovascular aneurysm repair, VASCULAR, Vol: 25, Pages: 266-271, ISSN: 1708-5381

JOURNAL ARTICLE

Bicknell CD, Kiru G, Falaschetti E, Powell JT, Poulter NRet al., 2016, An evaluation of the effect of an angiotensin-converting enzyme inhibitor on the growth rate of small abdominal aortic aneurysms: a randomized placebo-controlled trial (AARDVARK), EUROPEAN HEART JOURNAL, Vol: 37, Pages: 3213-3221, ISSN: 0195-668X

JOURNAL ARTICLE

Cheung S, Bicknell C, Stoyanov D, Li M, Rahman Ret al., 2016, Robot-Assisted EVAR: Video Motion Analysis in Live Cases, Vascular-Societies Annual Scientific Meeting, Publisher: WILEY-BLACKWELL, Pages: 21-21, ISSN: 0007-1323

CONFERENCE PAPER

Desender LM, Van Herzeele I, Lachat ML, Rancic Z, Duchateau J, Rudarakanchana N, Bicknell CD, Heyligers JMM, Teijink JAW, Vermassen FEet al., 2016, Patient-specific Rehearsal Before EVAR: Influence on Technical and Nontechnical Operative Performance. A Randomized Controlled Trial, ANNALS OF SURGERY, Vol: 264, Pages: 703-709, ISSN: 0003-4932

JOURNAL ARTICLE

Godfrey AD, Riga C, Bicknell C, 2016, 750 preoperative elective aortic-conditioned for failure?, Vascular-Societies Annual Scientific Meeting, Publisher: WILEY-BLACKWELL, Pages: 14-14, ISSN: 0007-1323

CONFERENCE PAPER

Hull L, Bicknell C, Patel K, Vyas R, Van Herzeele I, Sevdalis N, Rudarakanchana Net al., 2016, Content Validation and Evaluation of an Endovascular Teamwork Assessment Tool, EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY, Vol: 52, Pages: 11-20, ISSN: 1078-5884

JOURNAL ARTICLE

Judah G, Valabhji J, Gunn L, Tyacke P, Vlaev I, King D, King D, Bicknell C, Darzil Aet al., 2016, A randomised controlled trial on the impact of financial incentives on attendance at diabetic eye screening in London, 52nd Annual Meeting of the European-Association-for-the-Study-of-Diabetes (EASD), Publisher: SPRINGER, Pages: S65-S65, ISSN: 0012-186X

CONFERENCE PAPER

Judah G, Vlaev I, Gunn L, King D, King D, Valabhji J, Darzi A, Bicknell Cet al., 2016, Incentives in Diabetic Eye Assessment by Screening (IDEAS): study protocol of a three-arm randomized controlled trial using financial incentives to increase screening uptake in London, BMC OPHTHALMOLOGY, Vol: 16, ISSN: 1471-2415

JOURNAL ARTICLE

Kakkos SK, Bicknell CD, Tsolakis IA, Bergqvist Det al., 2016, Editor's Choice - Management of Secondary Aorto-enteric and Other Abdominal Arterio-enteric Fistulas: A Review and Pooled Data Analysis, EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY, Vol: 52, Pages: 770-786, ISSN: 1078-5884

JOURNAL ARTICLE

Khamis RY, Woollard KJ, Hyde GD, Boyle JJ, Bicknell C, Chang S-H, Malik TH, Hara T, Mauskapf A, Granger DW, Johnson JL, Ntziachristos V, Matthews PM, Jaffer FA, Haskard DOet al., 2016, Near Infrared Fluorescence (NIRF) Molecular Imaging of Oxidized LDL with an Autoantibody in Experimental Atherosclerosis, SCIENTIFIC REPORTS, Vol: 6, ISSN: 2045-2322

JOURNAL ARTICLE

Kiru G, Bicknell C, Falaschetti E, Powell J, Poulter Net al., 2016, An evaluation of the effect of an angiotensin-converting enzyme inhibitor on the growth rate of small abdominal aortic aneurysms: a randomised placebo-controlled trial (AARDVARK), HEALTH TECHNOLOGY ASSESSMENT, Vol: 20, Pages: 1-+, ISSN: 1366-5278

JOURNAL ARTICLE

Lear R, Riga C, Godfrey AD, Falaschetti E, Cheshire NJ, Van Herzeele I, Norton C, Vincent C, Darzi AW, Bicknell CDet al., 2016, Multicentre observational study of surgical system failures in aortic procedures and their effect on patient outcomes, BRITISH JOURNAL OF SURGERY, Vol: 103, Pages: 1467-1475, ISSN: 0007-1323

JOURNAL ARTICLE

Martin G, Riga C, Gibbs R, Jenkins M, Hamady M, Bicknell Cet al., 2016, Short- and Long-term Results of Hybrid Arch and Proximal Descending Thoracic Aortic Repair: A Benchmark for New Technologies, JOURNAL OF ENDOVASCULAR THERAPY, Vol: 23, Pages: 783-790, ISSN: 1526-6028

JOURNAL ARTICLE

Mazomenos EB, Chang P-L, Rippel RA, Rolls A, Hawkes DJ, Bicknell CD, Desjardins A, Riga CV, Stoyanov Det al., 2016, Catheter manipulation analysis for objective performance and technical skills assessment in transcatheter aortic valve implantation, INTERNATIONAL JOURNAL OF COMPUTER ASSISTED RADIOLOGY AND SURGERY, Vol: 11, Pages: 1121-1131, ISSN: 1861-6410

JOURNAL ARTICLE

Normahani P, Bicknell C, Allen L, Jenkins M, Gibbs Ret al., 2016, Wearable Sensor Technology Efficacy in Peripheral Vascular Disease: A RCT, Vascular-Societies Annual Scientific Meeting, Publisher: WILEY-BLACKWELL, Pages: 22-22, ISSN: 0007-1323

CONFERENCE PAPER

Panoulas V, Thyregod HG, Nihoyannopoulos P, Sen S, Ariff B, Gopalan D, Sutaria N, Bicknell C, Malik I, Francis D, Mikhail GWet al., 2016, Increased survival of females with severe aortic stenosis after transcatheter aortic valve implantation compared to surgical aortic valve replacement; a meta-analysis of randomised controlled studies, Congress of the European-Society-of-Cardiology (ESC), Publisher: OXFORD UNIV PRESS, Pages: 72-72, ISSN: 0195-668X

CONFERENCE PAPER

Pettengell C, Sharrock A, Nafisee D, Bicknell C, Riga Cet al., 2016, Endovascular non-technical skills assessment in trainees (Endo-OTAS), Vascular-Societies Annual Scientific Meeting, Publisher: WILEY-BLACKWELL, Pages: 24-24, ISSN: 0007-1323

CONFERENCE PAPER

Rafii-Tari H, Riga CV, Payne CJ, Hamady MS, Cheshire NJW, Bicknell CD, Yang G-Zet al., 2016, Reducing contact forces in the arch and supra-aortic vessels using the Magellan robot, JOURNAL OF VASCULAR SURGERY, Vol: 64, Pages: 1422-1432, ISSN: 0741-5214

JOURNAL ARTICLE

Ruparelia N, Panoulas VF, Frame A, Ariff B, Sutaria N, Fertleman M, Cousins J, Anderson J, Bicknell C, Chukwuemeka A, Sen S, Malik IS, Colombo A, Mikhail GWet al., 2016, Impact of clinical and procedural factors upon C reactive protein dynamics following transcatheter aortic valve implantation, WORLD JOURNAL OF CARDIOLOGY, Vol: 8, Pages: 425-431, ISSN: 1949-8462

JOURNAL ARTICLE

Scott AJ, Bicknell CD, 2016, Contemporary Management of Acute Type B Dissection, EUROPEAN JOURNAL OF VASCULAR AND ENDOVASCULAR SURGERY, Vol: 51, Pages: 452-459, ISSN: 1078-5884

JOURNAL ARTICLE

Athanasopoulos LV, Bicknell CD, Anderson JR, Baig K, Goldin R, Hamady M, Foale R, Cheshire NJet al., 2015, Leiomyosarcoma of the Thoracic Aorta in a Patient with Hypertrophic Cardiomyopathy, ANNALS OF VASCULAR SURGERY, Vol: 29, ISSN: 0890-5096

JOURNAL ARTICLE

Bicknell C, Powell JT, 2015, Aortic disease: thoracic endovascular aortic repair, HEART, Vol: 101, Pages: 586-591, ISSN: 1355-6037

JOURNAL ARTICLE

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