Abdominal Aortic Aneurysm Screening Programme Research Articles

Optimising Abdominal Aortic Aneurysm Screening of 65 Year Old Men by Exploring Risk Factor Based Targeted Screening Strategies in Light of Declining Prevalence of the Disease

A decline in abdominal aortic aneurysm (AAA) prevalence calls into question the credibility of general population screening of 65 year old men. Selectively targeting high risk individuals among this group could be more effective in preventing death from AAA rupture. This cross sectional study analysed risk factor data in a cohort of 65 year old men screened in the Swedish general population based AAA screening program, with the aim of exploring the effectiveness of hypothetical targeted screening strategies. All men attending AAA screening in four neighbouring counties in Sweden between 2006 and 2010 completed a health questionnaire on smoking habits and medical history. Abdominal aortic aneurysm was defined as measuring ≥ 30 mm. The sensitivity and specificity of different targeted screening strategies, with targeted subpopulations defined by duration of smoking with and without additional risk factors, were explored using receiver operating characteristic (ROC) curves. A total of 16 232 men were screened, with 236 (1.5%) screening detected AAAs. A strategy combining smoking, presence of coronary artery disease (CAD), or both was associated with the mathematically optimal balance between sensitivity and specificity (optimal threshold) in the ROC analysis. The optimal threshold corresponded to targeting men having smoked for thirty years or more, a history of CAD, or both, where 74.0% of all AAAs could be detected by screening 33.0% of the population, compared with general screening. Targeting men that have smoked for ten years or more indicated that 84.0% of all AAAs could be detected by screening 55.0% of the population. A simplified strategy of targeting ever smokers resulted in detecting 85.0% of all AAAs by screening 61.0% of the population. Targeted screening of men at high risk of AAA, focusing on smoking history for inclusion, may be a safe and effective alternative to general population screening.

Abdominal aortic aneurysm repair in Sweden vs. Finland: benefits of population-wide screening.

In 2006, screening of 65-year-old men for abdominal aortic aneurysm (AAA) was started in Sweden. Decline in aneurysm-related mortality has been reported since, but aneurysm incidence has been diminishing globally. Neighbouring Finland with similar population structure and health care system has no AAA screening programme. The aim of this study was to compare incidence and results of AAA repair in Sweden and Finland to differentiate the effect of screening from other changes in the epidemiology and treatment of AAA. All repairs for intact AAA (iAAA) or ruptured AAA (rAAA) from 1998 to 2017 were identified from national registers, and mortality data for these patients were collected. A total of 15 927 operations for iAAA were performed in Sweden and 6933 in Finland. In Sweden, the yearly operation volume increased after introduction of screening. Both countries showed a decrease in number of rAAA operations, but the decrease was more pronounced in Sweden. Sweden had a higher proportion of all AAA repairs because of rupture in the start of the study but by the end, the proportions were similar in both countries. Long-term survival improved for 65-79-old men in Sweden after start of screening. This study reveals improvements in results of AAA repair in Sweden. A decrease in rAAA repair and increase in iAAA repair were evident after AAA screening was started in 2006 and resulted in better outcomes. These changes are likely the result of AAA screening as they cannot be seen in neighbouring Finland that is lacking an AAA screening programme.

A prospective longitudinal study of risk factors for abdominal aortic aneurysm.

The aim of this study was to identify risk factors for abdominal aortic aneurysm (AAA)from the largest Welsh screening cohort to date. Patients were recruited from 1993 (to 2015) as part of the South East Wales AAA screening programme through general practitioners. Demographic data and risk factors were collected by means of a self-report questionnaire. Statistical tests were performed to determine whether associations could be observed between AAA and potential risk factors. Odds ratios (OR) were also calculated for each of the risk factors identified. A total of 6879 patients were included in the study. Two hundred and seventy-five patients (4.0%) presented with AAA, of which 16% were female and 84% were male. Patients with AAA were older than the (no AAA) control group (p < 0.0001). The following risk factors were identified for AAA: family history of AAA (p < 0.0001); history of vascular surgery (p < 0.0001), cerebrovascular accident (p < 0.0001), coronary heart disease (p < 0.0001), diabetes (p < 0.0001), medication (p = 0.0018), claudication (p < 0.0001), smoking history (p = 0.0001) and chronic obstructive pulmonary disorder (p = 0.0007). AAA is associated with classical vascular risk factors, in addition to other less-well-documented risk factors including previous vascular surgery. These findings have practical implications with the potential to improve future clinical screening of patients in order to reduce AAA mortality.

Smoking data quality of primary care practices in comparison with smoking data from the New Zealand Māori and Pacific abdominal aortic aneurysm screening programme: an observational study

BackgroundQuality smoking data is crucial for assessing smoking-related health risk and eligibility for interventions related to that risk. Smoking information collected in primary care practices (PCPs) is a major data source; however, little is known about the PCP smoking data quality. This project compared PCP smoking data to that collected in the Māori and Pacific Abdominal Aortic Aneurysm (AAA) screening programme.MethodsA two stage review was conducted. In Stage 1, data quality was assessed by comparing the PCP smoking data recorded close to AAA screening episodes with the data collected from participants at the AAA screening session. Inter-rater reliability was analysed using Cohen’s kappa scores. In Stage 2, an audit of longitudinal smoking status was conducted, of a subset of participants potentially misclassified in Stage 1. Data were compared in three groups: current smoker (smoke at least monthly), ex-smoker (stopped > 1 month ago) and never smoker (smoked < 100 cigarettes in lifetime).ResultsOf the 1841 people who underwent AAA screening, 1716 (93%) had PCP smoking information. Stage 1 PCP smoking data showed 82% concordance with the AAA data (adjusted kappa 0.76). Fewer current or ex-smokers were recorded in PCP data. In the Stage 2 analysis of discordant and missing data (N = 313), 212 were enrolled in the 29 participating PCPs, and of these 13% were deceased and 41% had changed PCP. Of the 93 participants still enrolled in the participating PCPs, smoking status had been updated for 43%. Data on quantity, duration, or quit date of smoking were largely missing in PCP records. The AAA data of ex-smokers who were classified as never smokers in the Stage 2 PCP data (N = 27) showed a median smoking cessation duration of 32 years (range 0–50 years), with 85% (N = 23) having quit more than 15 years ago.ConclusionsPCP smoking data quality compared with the AAA data is consistent with international findings. PCP data captured fewer current and ex-smokers, suggesting ongoing improvement is important. Intervention programmes based on smoking status should consider complementary mechanisms to ensure eligible individuals are not missed from programme invitation.

Evaluating growth patterns of abdominal aortic aneurysms among women

ObjectiveThough initially protected from vessel dilation by estrogen, women may experience rapid abdominal aortic aneurysm (AAA) growth post-menopause. The rate of growth has been poorly defined in prior literature. Here, we describe aneurysm growth in a cohort of women found through an AAA screening program. MethodsWomen with AAAs were retrospectively identified. Aortic imaging was reviewed, and measurements of maximum transverse and anterior-posterior diameters were completed. Growth was stratified by the type of aortic pathology (fusiform aneurysm, aortic ectasia, dissection with aneurysmal degeneration, saccular aneurysm) as well as size category (<3 cm, 3.0-3.9 cm, 4.0-4.9 cm, ≥5.0 cm) at diagnosis. ResultsA cohort of 488 women was identified; 286 had multiple scans for review. The mean age of the entire cohort was 75 ± 9.9 years. Stratified by type of pathology, the mean age was 76 ± 8.9 years in patients with a fusiform AAA, 74 ± 9.8 years in ectasia, 65 ± 13.7 years in dissection, and 76 ± 5.6 years in saccular aneurysms. The maximum growth was highest in women with fusiform AAAs, followed by dissection, ectasia, and saccular pathology (9.7 mm, 7.0 mm, 3.0 mm, and 2.2 mm, respectively; P < .001). Comparing mean growth by year, the highest mean growth was in fusiform AAAs (3.6 mm vs 1.75 mm in dissection; P < .001). The Shapiro-Wilk test demonstrated that mean growth per year was non-normally distributed with a right skew. Stratified by aortic diameter at the time of diagnosis, mean growth/year increased with increasing size at diagnosis in fusiform AAAs and dissection (0.91 mm for <3 cm, 2.34 mm for 3.0-3.9 cm, 2.49 mm for 4.0-4.9 mm, and 6.16 mm for ≥5.0 cm in patients with fusiform AAAs vs 0.57 mm, 0.94 mm, 1.87 mm, and 2.66 mm, respectively, for patients with dissection). Smoking history was associated with a higher mean growth/year (2.6 mm vs 3.3 mm; P < .001). Conversely, patients with a family history of AAA had a lower mean growth/year (3.2 mm vs 1.5 mm; P < .001). ConclusionsThe rate of aneurysm growth in women varies based on pathology and aneurysm size, and women experience rapid aneurysm growth at sizes greater than 4.5 cm. Current screening guidelines are inadequate, and our results demonstrate that the rate of growth of fusiform aneurysms in women is faster than in men at a smaller size and may warrant more frequent surveillance than current Society for Vascular Surgery recommendations to prevent risk of increased morbidity.

One-time screening for abdominal aortic aneurysm in Ontario, Canada: a model-based cost-utility analysis.

Screening programs for abdominal aortic aneurysm (AAA) are not available in Canada. We sought to determine the effectiveness and costutility of AAA screening in Ontario. We compared one-time ultrasonography-based AAA screening for people aged 65 years to no screening using a fully probabilistic Markov model with a lifetime horizon. We estimated life-years, quality-adjusted life-years (QALYs), AAA-related deaths, number needed to screen to prevent 1 AAA-related death and costs (in Canadian dollars) from the perspective of the Ontario Ministry of Health. We retrieved model inputs from literature, Statistics Canada, and the Ontario Case Costing Initiative. Screening reduced AAA-related deaths by 84.9% among males and 81.0% among females. Compared with no screening, screening resulted in 0.04 (18.96 v. 18.92) additional life-years and 0.04 (14.95 v. 14.91) additional QALYs at an incremental cost of $80 per person among males. Among females, screening resulted in 0.02 (21.25 v. 21.23) additional life-years and 0.01 (16.20 v. 16.19) additional QALYs at an incremental cost of $11 per person. At a willingness-to-pay of $50 000 per year, screening was cost-effective in 84% (males) and 90% (females) of model iterations. Screening was increasingly cost-effective with higher AAA prevalence. Screening for AAA among people aged 65 years in Ontario was associated with fewer AAA-related deaths and favourable cost-effectiveness. To maximize QALY gains per dollar spent and AAA-related deaths prevented, AAA screening programs should be designed to ensure that populations with high prevalence of AAA participate.

Evaluation of outcomes and utility of abdominal aortic aneurysm surveillance in octogenarians and nonagenarians.

The aim of this study was to evaluate the utility of our regional abdominal aortic aneurysm (AAA) screening programme in octogenarians and nonagenarians. This was to help decide whether discontinuation might be appropriate in certain instances. Primary outcomes were the number of patients who reached threshold (5.5cm) and the number where intervention was offered. Secondary outcome was cost effectiveness. A retrospective review of a regional AAA surveillance database was carried out to evaluate outcomes. Data collected included patient age, sex, date of first and last scan, initial and latest size of aneurysm, outcome, time under surveillance and total number of scans. Patients were divided into three groups (80-84 years, 85-89 years and 90+ years). The number of patients in this age group was 354. Only 2.0% (n=7) of patients underwent intervention. Threshold size was achieved in 8.3% (n=18), 14.8% (n=18) and 26.7% (n=4), in the age groups 80-84 years, 85-89 years and 90+ years, respectively. Of these patients, operative intervention was possible in 2.8% (n=6), 0.8% (n=1) and 0% (n=0), respectively. A relatively small number of octogenarians and nonagenarians reach the threshold size during surveillance. An even smaller proportion require repair of their aneurysm. While there may be a role for AAA surveillance in octogenarians in highly selected groups, these data should inform the discussions made with individual patients. It should also inform future evaluation of such surveillance.

Incidental Cardiovascular Abnormalities in the Abdominal Aortic Aneurysm (AAA) Surveillance Population During the AAA Get Fit Trial: A Case Series and Review of the Literature.

Background The prevalence of cardiovascular disease and incidence of major adverse cardiovascular events (MACEs) is very high among the abdominal aortic aneurysm (AAA) surveillance population. Formal assessments of and interventions to reduce cardiovascular risk are not a routine part of the surveillance programme at present. However, its potential importance is highlighted by incidental findings during the AAA Get Fit Trial, a randomised controlled trial which included baseline cardiopulmonary exercise testing (CPET). We speculate that CPET can act as an opportunistic screening programme to identify cardiovascular disease in AAA surveillance patients. Methods The AAA Get Fit Trial was a prospective, randomised controlled trial at a tertiary vascular centre, Manchester University NHS Foundation Trust, conducted between November 2017 and August 2019. Patients underwent CPET at baseline, 8, 16, 24 and 36 weeks as well as clinical history and examination and blood tests. We report on incidental cardiovascular abnormalities diagnosed during the trial. Results Of the 59 participants in the trial, four (6.8%) were identified to have abnormal findings suggestive of unstable cardiovascular disease. On subsequent further investigation, two patients were diagnosed and treated for severe coronary artery disease after abnormal ECG findings were noted during CPET. One patient was diagnosed with unstable angina after obtaining a detailed history on baseline assessment which was treated medically before going on to have a successful elective AAA repair. Conclusions There is a high incidence of MACEs among this high-risk population both pre and perioperatively. Identifying and treating cardiovascular disease among the AAA surveillance population must be a focus of the future AAA screening programme.

Psychosocial consequences after screening of abdominal aortic aneurysm among 65 year old men

BackgroundIn order to reduce the incidence of abdominal aortic aneurysm rupture and mortality, the Swedish Medical Council has introduced a national abdominal aortic aneurysm (AAA) screening program that offers ultrasound examination of 65-year-old men. Screening programmes of AAA may confer both benefits and harms. The study aim was to investigate the psychosocial consequences of AAA screening among men with screening-detected AAA as compared to men identified as AAA-negative at screening, using an AAA-specific questionnaire. MethodsThis cross-sectional study investigated the psychosocial consequences of AAA screening measured with a condition-specific questionnaire. This study focused on the Experience of the Diagnosis and the Screening Procedure in terms of Anxiety, Sense of Dejection and Existential Values. One hundred and fifty-eight men with AAA (63%) and 275 with normal aorta size (55%) completed the diagnosis-specific questionnaire. ResultsNinety-six percent of men with screening detected AAA did not regret the screening examination, the corresponding figure for controls being 99.6%. Seventy percent of AAA patients were surprised that something was wrong in their body. Some (85%) of men with AAA were current or previous smokers, about half of them (45%) felt guilty about it and 78% of the current smokers in the AAA group had considered stopping smoking. Both groups considered changing lifestyle, although at a higher rate (32%) among AAA cases than controls (20%), with differences both in intention to change their ways to exercise (p = 0.019) and food intake (p = 0.001).Intergroup differences were identified for the majority of items as captured by the questionnaire where men identified with AAA reported more negative psycho-social consequences for all evaluated items except for the items: Regret of the screening examination (p = 0.069) and feeling terrified (p = 0.10). Fifty-one percent of AAA cases stated that they feared rupture, and 12% were anxious about rupture during sexual activity whereas 57% were worried about rupture during intense physical activity. ConclusionMen who were diagnosed with AAA reported more psychosocial consequences compared to controls; still only a minority of AAA cases reported psychosocial consequences in greater occurrence. To some degree, men with AAA also feared rupture during various types of activities. There appears to be a need for improved patient information and easy access to caregivers for men with screening-detected AAA, which might help to reduce psychosocial consequences associated with the diagnosis.

O020 Comparison of indices of deprivation and screening uptake within a local AAA screening programme

Abstract Introduction The NHS Abdominal Aortic Aneurysm Screening Programme (NAAASP) was established nationally to reduce the number of deaths caused by ruptured AAA. NAAASP invites all men in their 65th year for a simple abdominal ultrasound scan. Across the country uptake to the programme varies greatly. The aim of this study is to determine the impact of deprivation on local screening programme attendance. Methods The attendance for patients invited to screening within the Leicester, Leicestershire and Rutland screening NAAASP programme between the years 2016 and 2021 was compared to indices of multiple deprivation (IMD) (derived from their Lower Layer Super Output Area (LSOA) for each patient). Multiple logistic regression was used to determine the most significant component contributing to the IMD score. Results 28,730 men in total were invited to attend. Mean IMD for those that attended screening was 15.6 versus 20.6 for non-attenders (P value &amp;lt;0.001). Multiple regression revealed the IMD domains most associated with non-attendance to screening to be; Health Deprivation and Disability domain (P&amp;lt;0.001), Outdoor living environment domain (P&amp;lt;0.001) and Adult skills and English language proficiency domain (P&amp;lt;0.001). Barriers to housing and service domain including ‘geographical barriers’ which relate to the physical proximity of local services and employment domains did not show any association with attendance. Conclusion In line with the contemporary medical literature, social deprivation affects the uptake of the local National Abdominal Aortic Aneurysm Screening Programme (NAAASP). Health deprivation and disability, Outdoor living environment and adult education domains are most contributory to non-attendance.

High prevalence of abdominal aortic aneurysm in older men with cerebrovascular disease: Evaluation of a local screening program.

Patients with cerebrovascular disease may suffer from other vascular morbidities, such as abdominal aortic aneurysm (AAA). Previously, a high prevalence of AAA has been demonstrated in men 60 years of age and older who have experienced TIA or stroke. This report evaluates the results of a decade's operation of a local screening program for AAA in this selected neurologic population. Men aged ≥60 years and admitted to the neurology ward of a community-based hospital in the Netherlands from 2006 to 2017 with a diagnosis of TIA or stroke were selected for screening. The diameter of the abdominal aorta was assessed by abdominal ultrasonography. Patients with detected AAA were referred for evaluation by a vascular surgeon. AAA was detected in 72 of 1,035 screened patients (6.9%). AAAs with a diameter of 3.0-3.9 cm accounted for 61.1% of the total aneurysms found; AAAs with a diameter of 4.0-5.4 cm accounted for 20.8% of the total; and large aneurysms with a diameter of ≥5.5 cm accounted for 18.1% of all aneurysms discovered. A total of 18 patients (1.7%) underwent elective aneurysm repair. The detection rate of AAA in older men with cerebrovascular disease was roughly 5-fold the detection rate in known European screening programs in older men from the general population. The proportion of large AAAs (≥5.5 cm) was also substantially higher. These findings reveal a previously unknown co-morbidity in patients with cerebrovascular disease and may be helpful for cardiovascular management of this large group of neurologic patients. Current and future AAA screening programs may also benefit from this knowledge.

Spatio-temporal analysis of non-attendance for the National Abdominal Aortic Aneurysm Screening Program in Cambridgeshire, Peterborough and West Suffolk region between 2018 and 2022 and its link to socioeconomic deprivation

Objective: Non-attendance for National Abdominal Aortic Aneurysm Screening Program (NAAASP) screening scans results in a lost opportunity to improve public health and has financial implications for the healthcare system as a whole. This study aimed to assess the spatio-temporal distribution of the ‘did-not-attend’ (DNA) rate and identify high-risk geographical areas and associated risk factors for future policy making and allocation of healthcare resources. Methods: This was a retrospective spatio-temporal analysis of non-attendance to the NAAASP in Cambridgeshire, Peterborough and West Suffolk from 2018 to 2022. With the data from the national AAA screening system, Screening Management and Referral Tracking (SMaRT), the DNA rate was established for each postcode district and compared with the overall DNA rate. Using the number of ‘non-attenders’ in each postcode district, optimised hotspot analysis was performed to identify hotspots of non-attendance for each year between 2018 and 2022. Multiple logistic regression was used to investigate the association between degree of deprivation and non-attendance. Results: Overall, 6,364 of 23,957 people (26.6%) being called for screening did not attend from 2018 to 2022. Optimised hotspot analysis identified eight statistically significant hotspots of non-attendance. Postcode districts PE10 (n=8, 80%), PE1 (n=433, 44.5%), CB4 (n=331, 40.2%), CB3 (n=114, 36.7%) and CB1 (n=320, 35.8%) were identified as areas with statistically significantly higher DNA rates. PE1, CB1, CB3 and CB4 were high-risk areas with both high DNA rates and high numbers of non-attenders. A consistent spatial pattern of hotspots was observed while there was a significant drop in the DNA rate in 2020/21. While degree of deprivation was closely linked to non-attendance in Peterborough, the link was less obvious in Cambridge with little socioeconomic deprivation. Conclusion: PE1, CB1, CB3 and CB4 were identified as high-risk postcodes. These areas comprise 12.6% of the total screened population. The degree of deprivation is found to be a major contributing factor to non-attendance. Focusing resources to try and improve attendance in these cohorts should be a more cost-effective approach than targeting the population as a whole. Future research is needed to explore the risk factors associated with high non-attendance in these postcode districts in order to identify actions to improve uptake and access to the screening services.

The CRG for Vascular Services

The last decade has witnessed a number of changes in the delivery of vascular services nationwide. Vascular surgery attained speciality status in 2012, and is well recognised as an urgent and emergent speciality delivering time-dependent care for patients with aortic aneurysms, carotid surgery for stroke prevention and lower limb revascularisation for critical limb-threatening ischaemia. The National Vascular Registry (NVR), established in 2013, provides effective monitoring and reports on outcomes whilst also delivering a robust programme of quality improvement.1 The National Abdominal Aortic Aneurysm Screening Programme was fully implemented in 2014,2 and this coincided with a move towards centralisation of vascular services to a network model of care with elective and emergency arterial surgery concentrated in arterial hubs. In 2013, NHS England took full responsibility for all specialised commissioning which included all arterial surgery. Over the years, major vascular policy decisions make reference to the Vascular Clinical Reference Group (CRG), yet few clinicians are aware of who these groups are, who they are accountable to and how they are involved in organising, reconfiguring, delivering and monitoring of vascular services in England.

Outcomes of a pilot abdominal aortic aneurysm screening program in a population of Central Greece.

Abdominal aortic aneurysm (AAA) screening has contributed in the decrease of aneurysm related and all-cause mortality. The objective of our study is to present our experience from the only existing pilot AAA screening program in Greece. Men from both urban and rural areas in Central Greece, aged >60 years old without a previously known diagnosis of AAA were invited through the public primary health care units to participate to a screening program. Demographics, comorbidities, family history and anthropometric data were recorded. Aortic diameter values of >30 mm and common iliac artery (CIA) diameter values of >18 mm, were defined as aneurysmatic by ultrasound. The screening program included 1256 individuals (1256/1814; response rate 69%). The incidence of AAA and CIA aneurysm was 2% (25/1256) and 2.3% (29/1256), respectively. Increased age (P<0.042), tobacco use (P<0.006) and its duration (P<0.008) were related to higher incidence of AAA, while diabetes mellitus to lower one (P<0.048). Multivariate analysis showed that AAA was associated to longer duration of smoking (1.05, CI: 0.02-6.6; P=0.01). Statin and antiplatelet therapy were administrated in 40% (10/25) and 44% (11/25), respectively of individuals with AAA. An additional analysis was provided between subjects with AD of 25-30 mm and AD <25 mm. In multivariate analysis, no factor was associated to AD of 25-30 mm. The incidence of AAA and CIA aneurysm in Central Greece is 2% and 2.3%, respectively. Smoking duration was the strongest associated factor with AAA incidence. This provides to healthcare policy makers a strong valid point for the prevention strategies.

Use of radiological information system data in Clinical Portal database to screen for missed abdominal aortic aneurysms.

New Zealand lacks a formal abdominal aortic aneurysm screening programme and owing to its rural nature, many patients have limited access to vascular surgery. Patients with vascular emergencies often have limited treatment options locally, especially if they present perimortem. In our small hospital in Whanganui, with the nearest vascular centre more than 150km away, there are cases of aneurysms diagnosed incidentally on radiology reporting but lost to follow-up. Clinical Portal (CP) is a widely used patient-centred dashboard for viewing health information that is managed by Orion Health. A search strategy utilising the CP common database was devised that aimed to find aneurysms which were not followed up. This search was performed retrospectively for all imaging within a 5-month period. Some 294 scans were flagged and 53 patients with aneurysms were found. Of these patients, 36 had follow-up by the ordering provider and 17 (32%) were found to have been lost to follow-up. Our pilot study demonstrated high rates of loss to follow-up and a lack of communication of important health information across multiple health disciplines in the region, and represents a potential method for identifying 'lost' aneurysms. For patients in rural communities, this may be critical to preventing future complications from aneurysmal disease.

One Year on: Test Your Knowledge From July 2021

1. A retrospective analysis of three studies (the Multi-centre Aneurysm Screening Study (MASS), the 2013/14 cohort of the English NHS AAA Screening Programme (NAAASP) and the Framingham Heart Study (FHS) offspring cohort) of male participants screened for aortic aneurysm disease investigated the association between infra-renal aortic diameter and cardiovascular risk. According to the results of these studies, which of the following is correct? 1A)A small aortic diameter was a uniform risk factor for cardiovascular events across the three studies.B)Cardiovascular mortality in all studies was higher in patients with an abdominal aortic aneurysm (AAA) compared to those without.C)Aortic diameter was risk factor for cardiovascular events, but this association was not confirmed on multivariable analysis.D)Aortic diameter was risk factor for stroke.E)None of the above.

The persistent challenges faced by vascular surgery services during the UK coronavirus pandemic: a snapshot qualitative survey.

The coronavirus (COVID-19) pandemic continues to affect the NHS. The Vascular and Endovascular Research Network (VERN) COvid Vascular sERvice (COVER) study has prospectively shown the significant global impact of the COVID-19 pandemic on vascular surgery. The aim of this study is to investigate the way in which this second wave has affected surgeons' ability to treat patients with urgent vascular conditions, using contemporaneous snapshot data from 30 UK vascular centres. This is a contemporary (18-28 January 2021) re-run of the Tier 1 COVER survey. This used closed and open questions, related to centres' provision of common vascular services, threshold for treatment, imaging, screening, staff and theatre availability, multidisciplinary team input, clinics, personal protective equipment, vaccination policies and case-backlogs. The survey was disseminated to clinicians via email. A service reduction score was calculated. Forty-two complete responses were received from 30 vascular centres (England, Northern Ireland, Scotland and Wales). Overall, 56.7% of units are performing only urgent procedures. The threshold for abdominal aortic aneurysm (AAA) repair has increased in the majority of UK centres (60%). One in six AAA screening programmes have stopped all screening activity: 30% having a significantly reduced programme and only half running as normal. Waiting lists are increasing for AAA, lower limb revascularisation and venous disease. Overall, these data suggest that vascular care in the NHS is facing unprecedented pressures due to COVID-19. Vascular stakeholders will have to urgently address these issues in the coming months. ISRCTN 80453162 (registered prospectively).

Introducing multi-component cardiovascular health screening into existing Abdominal Aortic Aneurysm (AAA) screening programmes in the UK: a qualitative study of programme staff views

BackgroundCardiovascular disease is a major contributor to poor health in the UK and the leading cause of death in England. Peripheral arterial disease and high blood pressure are conditions that identify individuals at high cardiovascular disease risk, likely to benefit from cardiovascular risk management. Both conditions remain considerably underdiagnosed and untreated. The National Health Service abdominal aortic aneurysm (AAA) screening programmes represent an opportunity to screen for these conditions with potentially minimal additional effort or cost. We explored AAA screening programme staff views on the proposed introduction of such additional screening within AAA screening.MethodsNine focus groups and seven follow-on interviews were undertaken with 38 AAA screening staff. Our study methods were oriented broadly towards a grounded theory methodology, and data were analysed using thematic analysis.ResultsThree themes were identified: (i) ‘Perceptions of patient experience and health-related outcomes’, (ii) ‘Opportunities and challenges for programme staff’, and (iii) ‘Maintaining and improving programme standards’. Staff talked about the high uptake of AAA screening, staff experience and skills in their role, and the programme’s high quality standards as both opportunities and potential challenges linked to the proposed additions to AAA screening. While positive about the potential to improve patients’ health outcomes, participants had questions about the practicalities of incorporating additional procedures within their time- and resource-constrained context, and how this may reconfigure work processes, roles and relationships.ConclusionsThe proposed additions to the programme require taking staff’s views into account. Key areas that need to be addressed relate to ensuring follow-up support for patients, clarity around staff responsibilities, and availability of sufficient resources for the programme.

Developing and evaluating a prototype public health mobile app on the UK NHS Abdominal Aortic Aneurysm Screening Programme

Abdominal Aortic Aneurysms (AAA) are asymptomatic with advanced age and male sex being risk factors. Due to their significant mortality rate, the NHS AAA Screening programme was introduced in 2012. However, this is not as well-supported compared to other programmes. When it comes to AAA and its screening, health information is also available from different sources potentially leading to confusion. Based on this, our aim was to develop a prototype mobile application on AAA and its screening, centralising all key information, for the general public. Another aim was to assess the app’s usability and impact (i.e. users’ perceptions about screening attendance and knowledge of AAA). 24 participants completed a pre-app questionnaire followed by app testing and a post-app questionnaire. Ethical approval was granted from the Glasgow School of Art. 75% of participants had never heard of AAA and 92% had never heard of its screening. After app use, the participants’ AAA knowledge significantly increased (Z = −4.318, p < 0.001). App use and opinion of screening attendance were also statistically associated (X 1[1, n = 24] = 6.857, p < 0.05). The app’s usability was rated positively in the USE questionnaire. Research is needed on public health apps regarding their impact on screening uptake and public knowledge.

One Year on: Test Your Knowledge From February 2021

1. The United Kingdom National Health Service (NHS) Abdominal Aortic Aneurysm Screening Programme (NAAASP) was implemented in 2003. Men with a large aneurysm (>54mm), either at first screening of during surveillance, were referred for possible intervention. How much was mortality after elective repair of men with screen-detected abdominal aortic aneurysm treated in NAAASP?1A)<0.1%B)0.1-0.5%C)0.5-1%D)1-2%E)2-3%