Lower Limb Vascular Assessment Techniques of Podiatrists in The

Lower Limb Vascular Assessment Techniques of Podiatrists in The

Tehan et al. Journal of Foot and Ankle Research (2019) 12:31 https://doi.org/10.1186/s13047-019-0341-2 RESEARCH Open Access Lower limb vascular assessment techniques of podiatrists in the United Kingdom: a national survey Peta Ellen Tehan1,2*, Martin Fox3, Sarah Stewart4, Susan Matthews3 and Vivienne Helaine Chuter1 Abstract Background: Podiatric vascular assessment practices in the United Kingdom (UK) are currently unknown. This study aimed to describe the current practices for performing lower limb vascular assessments by podiatrists in the UK, and, to investigate the effect of practitioner characteristics, including education level and practice setting, on the choice of tests used for these assessments. Methods: A cross-sectional observational online survey of registered podiatrists in the UK was conducted using SurveyMonkey® between 1st of July and 5th of October 2018. Item content related to: practitioner characteristics, vascular testing methods, barriers to completing vascular assessment, interpretation of vascular assessment techniques, education provision and ongoing management and referral pathways. Descriptive statistics were performed, and multinomial logistic regression analyses were used to determine whether practitioner characteristics could predict the choice of vascular tests used. Results: Five hundred and eighty five participants accessed the online survey. After drop-outs and exclusions, 307 participants were included in the analyses. Comprehensive vascular assessments had most commonly been performed once (15.8%) or twice (10.4%) in the past week. The most common indicators for performing vascular assessment were symptoms of suspected claudication (89.3%), suspected rest pain (86.0%) and history of diabetes (85.3%). The most common barrier to performing vascular assessment was time constraints (52.4%). Doppler examination (72.3%) was the most frequently reported assessment type, with ankle-brachial index (31.9%) and toe brachial index (5.9%) less frequently performed. There were variable interpretations of vascular test results. The most common topic for education was smoking cessation (69.5%). Most participants (72.2%) were confident in determining ongoing management, with the majority referring to the patient’s general practitioner (67.6%). Practitioner characteristics did not predict the types of vascular tests performed. Conclusion: The majority of vascular assessments currently performed by podiatrists in the UK are inconsistent with UK or international vascular guidelines and recommendations. Despite this, most podiatrists felt confident in diagnosing, referring and managing patients with peripheral arterial disease (PAD), however many felt they needed more education to feel confident to assist patients with PAD to manage their cardiovascular risk factors. Keywords: Non-invasive vascular assessment, Podiatrist, Survey, Doppler, Ankle-brachial index, Toe-brachial index, Toe systolic pressure * Correspondence: [email protected] 1School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Ourimbah, NSW 2258, Australia 2School of Clinical Sciences, Faculty of Health, Auckland University of Technology, Auckland, New Zealand Full list of author information is available at the end of the article © The Author(s). 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. Tehan et al. Journal of Foot and Ankle Research (2019) 12:31 Page 2 of 12 Introduction between 1st of July and 5th of October 2018 using soft- Peripheral arterial disease (PAD) is estimated to affect ware program SurveyMonkey® (SurveyMonkey Inc., San > 20 million people worldwide, affects 20% of the popu- Mateo, California). Recruitment occurred through bul- lation over 60 years of age, and is more common in letin and online advertising through professional bod- people with concomitant chronic disease [1–4]. Al- ies including the College of Podiatry, Royal College of though PAD can involve arteries throughout the entire Physicians and Surgeons (Faculty of Podiatric Medi- body, it most commonly affects those in the lower limb cine) and Foot in Diabetes UK. Online snowball ad- [1]. There is a strong association between PAD and car- vertising was also completed via Facebook® and diovascular and cerebrovascular disease which may be Twitter® by the professional bodies and two of the re- otherwise undiagnosed and consequently under-managed searchers to their professional networks (MF and PT). [5]. It is therefore important to identify the presence of Potential participants had access to a web link to the PAD early in the disease process [6] in order to facilitate online secure survey which included the participant timely onward referral, manage cardiovascular risk factors information statement and consent form. Participants and closely monitor the disease process. were included if they were podiatrists registered with Podiatrists potentially play a key role in the early the Health and Care Professionals Council (HCPC) identification of PAD, as they are the main providers and currently practicing in the UK. Ethics approval of foot health assessment in the community, and typ- was granted by the University of Newcastle Human ically consult with people who may not demonstrate Research Ethics Committee prior to the survey being symptoms of PAD or report themselves to general disseminated (H-2012-0384). All participants provided practitioners [7]. Current international and United informed consent prior to participation by answering Kingdom (UK) national guidelines recommend PAD is yes following the information statement on the first tested for using a combination of clinical history tak- pageoftheonlinesurvey. ing, pulse palpation, Doppler waveform assessment, The initial concept for the survey design was based ankle-brachial index (ABI), toe systolic pressure and on a previous survey of vascular assessments tech- toe-brachial index (TBI) as well as measures of skin niques of podiatrists in Australia and New Zealand perfusion, e.g. transcutaneous oximetry [4, 8–10]. [7]. Based on feedback from researchers involved in Significant variation in clinical practice and lack of the previous survey, questions were modified and fur- adherence to evidence-based guidelines creates uncer- ther adjusted for the UK population. The survey was tainty in the effectiveness of such testing for identify- then piloted by six podiatrists and further amend- ing those with PAD and achieving any improvement ments made as a result of feedback. Item content re- in overall patient outcomes [11]. Recent research has lated to specific tests used in vascular assessment, demonstrated that the majority of vascular assess- factors influencing whether an assessment was per- ments performed by podiatrists in Australia and New formed, interpretation of vascular test results, self-per- Zealand are inconsistent with current guidelines. The ceived concordance of vascular assessment practice types of testing methods used by podiatrists were with guidelines, equipment type used and equipment shown to be influenced by their practice setting (pub- availability (Additional file 1). The survey contained a lic versus private), with public podiatrists significantly total of 29 items related to: participant demographics more likely to undertake lower limb blood pressure (items 1 to 8), vascular testing methods (items 9 to 13), in- testing compared to podiatrists in private practice. terpretation of vascular results (items 14 to 21), barriers The vascular testing methods used by podiatrists in for assessment and practical aspects of assessment (items the UK are currently unknown. Furthermore, it is cur- 22 to 25), and education and ongoing management (items rently unknown if podiatrists in the UK are utilising 26 to 29). Nominal polytomous, continuous, dichotomous guidelines to inform their practice, or if their practice is and open-ended response types were used. consistent with guidelines. Therefore, the primary aim of this study was to describe current practices of UK Data analysis podiatrists in performing lower limb vascular assess- Survey participants were included in the analysis if they ments. Secondly, the study aimed to determine whether completed both the participant characteristics and vas- practitioner education level or practice setting (public cular assessment sections of the online survey. All open- versus private) could predict the choice of tests used ended responses were quantitatively categorised for the for lower limb vascular assessments. purpose of data analysis. Participant characteristics and vascular assessment characteristics were described as n Design and methods (%) for categorical data or mean (SD) for continuous This was a cross-sectional observational survey of UK po- data. As some participants did not answer all questions, diatrists. The anonymous online survey was conducted the overall percentages for each question were reported Tehan et al. Journal of Foot and Ankle Research (2019) 12:31 Page 3 of 12 as

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