Impact of Carotid Artery Stenosis on Quality of Life: A Systematic Review
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The aim of this study was to identify themes that determine health-related quality of life (HRQoL) in patients with carotid artery stenosis and identify the patient-reported outcome measures (PROMs) that best cover the identified themes.
A systematic review of the main six databases from inception to September 2018 was undertaken to identify primary qualitative studies reporting on the HRQoL of patients with carotid artery stenosis. The quality of studies was assessed using the Critical Appraisal Skills Programme (CASP) criteria. Findings from the included studies were analysed using framework analysis methodology. The identified themes were mapped against the items/domains from the PROMs used previously in patients with carotid artery stenosis.
The systematic review identified four papers that fulfilled the inclusion criteria. The included papers reported the views of 62 patients with symptomatic carotid artery stenosis; 24 of the patients were awaiting assessment for intervention, 26 had carotid endarterectomy, and 12 were turned down for intervention and received best medical therapy. The overall quality of the included studies was good based on CASP criteria. Framework analysis identified 16 themes that were divided into five main domains: anxiety, impact on personal roles and activities, effect on independence, psychological impact, and symptoms. The best-fit generic and disease-specific PROMs were the Medical Outcomes Study 36-Item Short Form (SF-36®) and the Carotid Stenosis Specific Outcome Measure (CSSOM), respectively. None of the PROMs covered all the themes identified in the qualitative systematic review.
The findings from the review identified the important themes that affect patients with carotid stenosis disease. The current generic and disease-specific PROMs do not cover all themes that impact the HRQoL of patients suffering with this disease. The proposed themes can be used to develop a new disease-specific PROM to measure HRQoL.
Ahmed Aber contributed to the analysis and interpretation of data, drafting of the manuscript, and critical revision. Aoife Howard contributed to the analysis and interpretation of data and drafting of the manuscript. Helen Buckley Woods performed the searches for the systematic review and helped in drafting of the manuscript. Georgina Jones contributed to the study conception and design, analysis and interpretation of data, and drafting of the manuscript. Jonathan Michaels contributed to the study conception and critical revision.
Compliance with Ethical Standards
This study was funded by the United Kingdom National Institute for Health Research (NIHR) under the Programme Grants for Applied Research programme (RP-PG-1210-12009). The views expressed are those of the authors and not necessarily those of the NHS, the NIHR or the Department of Health.
Conflict of interest
Ahmed Aber, Aoife Howard, Helen Buckley Woods, Georgina Jones, and Jonathan Michaels have no conflicts of interest directly relevant to the content of this article.
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