Editor's Choice - Assessment of Correlation Between Mean Size of Infrarenal Abdominal Aortic Aneurysm at Time of Intact Repair Against Repair and Rupture Rate in Nine Countries.

OBJECTIVE: This study aimed to analyse the mean abdominal aortic aneurysm (AAA) diameter for repair in nine countries, and to determine variation in mean AAA diameter for elective AAA repair and its relationship to rupture AAA repair rates and aneurysm related mortality in corresponding populations. METHODS: Data on intact (iAAA) and ruptured infrarenal AAA (rAAA) repair for the years 2010-2012 were collected from Denmark, England, Finland, Germany, Hungary, New Zealand, Norway, Sweden, and the USA. The rate of iAAA repair and rAAA per 100 000 inhabitants above 59 years old, mean AAA diameter for iAAA repair and rAAA repair, and the national rates of rAAA were assessed. National cause of death statistics were used to estimate aneurysm related mortality. Direct standardisation methods were applied to the national mortality data. Logistic regression and analysis of variance model adjustments were made for age groups, sex, and year. RESULTS: There was a variation in the mean diameter of iAAA repair (n = 34 566; range Germany = 57 mm, Denmark = 68 mm). The standardised iAAA repair rate per 100000 inhabitants varied from 10.4 (Hungary) to 66.5 (Norway), p<.01, and the standardised rAAA repair rate per 100 000 from 5.8 (USA) to 16.9 (England), p<.01. Overall, there was no significant correlation between mean diameter of iAAA repair and standardised iAAA rate (r2 = 0.04, p = .3). There was no significant correlation between rAAA repair rate (n = 12 628) with mean diameter of iAAA repair (r2 = 0.2, p = .1). CONCLUSION: Despite recommendations from learned society guidelines, data indicate variations in mean diameter for AAA repair. There was no significant correlation between mean diameter of AAA repair and rates of iAAA repair and rAAA repair. These analyses are subject to differences in disease prevalence, uncertainties in rupture rates, validations of vascular registries, causes of death and registrations.

Data Privacy Compliant Validation of Health Insurance Claims Data: the IDOMENEO Approach.

Recently, health insurance claims have regained the attention of the scientific community as a source of real-world evidence in health care research and quality improvement. To date, very few studies are available which investigate the validity of health insurance claims; these may be affected by bias from several sources, such as possible upcoding of co-morbidities and complications for reimbursement advantages. The IDOMENEO study investigates the inpatient treatment of peripheral arterial disease (PAD) comprehensively using various data sources with a consortium involving experts from health care research and data privacy, a large health insurance fund, biostatisticians, jurists, and computer scientists. Prospective registry data were collected from 30-40 vascular centres in Germany using the GermanVasc registry. In addition, health insurance claims data were prospectively collected from BARMER, the second largest health insurance fund in Germany. The consortium is currently developing a data privacy compliant method of health insurance claims data validation, the methodological foundations of which are described here.

A Targeted Literature Review of the Disease Burden in Patients With Symptomatic Peripheral Artery Disease.

Patients with peripheral artery disease (PAD) have an increased risk of cardiovascular (CV) and limb events, but the disease is frequently underdiagnosed and treatment options are limited. This review examines the disease burden of symptomatic PAD as well as key guideline recommendations. Publications were identified using the ProQuest portal to access the Medline, Medline In-Process, and Embase databases. Search terms for symptomatic PAD were combined with terms relevant to epidemiology, burden, treatment practice, and physiopathology. Articles in English published between January 2001 and September 2016 were screened according to the population, interventions, comparator, outcomes, and study design criteria. Relevant publications (n = 200) were identified. The reported incidence and prevalence of PAD varied depending on the definitions used and the study populations. Patients generally had a poor prognosis, with an increased risk of mortality, CV, and limb events and decreased quality of life. Guideline recommendations included ankle-brachial index measurements, exercise testing, and angiography for diagnosis and risk factor modification, antiplatelets, cilostazol, exercise therapy, or surgical interventions for treatment, depending on the patient profile. The clinical, humanistic, and economic burden of disease in patients with symptomatic PAD is substantial and needs to be reduced through improved PAD management.

Achieving Consensus to Define Curricular Content for Simulation Based Education in Vascular Surgery: A Europe Wide Needs Assessment Initiative.

OBJECTIVE: To gather consensus among European educators about technical procedures that should be included in a future simulation based curriculum in vascular surgery. METHODS: A three round modified Delphi survey was initiated among 189 key opinion leaders (KOL) from 34 countries across Europe who were identified according to their positions in the European Society for Vascular Surgery, the European Journal of Vascular and Endovascular Surgery, and Union Européenne des Médecins Spécialistes Section and Board of Vascular Surgery. The first round was a brainstorming phase to identify technical procedures that a newly qualified vascular surgeon should be able to perform. The answers were analysed qualitatively. The second round investigated how often the identified procedures are performed, the number of vascular surgeons that should be able to perform these procedures, whether the procedures pose a risk to the patients, and whether simulation based education (SBE) is feasible. In the third round, elimination and re-ranking of procedures were performed. Only procedures that gained more than 70% support were included. An international steering group consisting of open and endovascular surgeons and medical educators governed the process. RESULTS: Response rates in the three rounds were 75% (142/189), 89% (126/142), and 85% (107/126), respectively. In the final prioritised list of 30 technical procedures for SBE, the top five procedures focus on basic open vascular skills, basic endovascular skills, vascular imaging interpretation, femoral endarterectomy, and open peripheral bypass. Twenty-six procedures were eliminated, including peripheral pressure measurement, wound management, open management of complications, major amputations, and highly advanced endovascular skills. CONCLUSION: The prioritised list of technical procedures from this ESVS supported project could be used to guide planning and development of future SBE programs to meet the needs of vascular surgeons across Europe.

[Anti-Thrombotic Therapy of Peripheral Arterial Disease - A Review of Current Evidence, Practice and Outlook]. / Antithrombotische Therapie der peripheren arteriellen Verschlusskrankheit ­ ein Überblick über aktuelle Evidenz, Praxis und Ausblick.

Peripheral arterial occlusive disease is a frequent and chronic vascular disorder mostly affecting the lower limbs and caused by fibrous plaques in arteries that can result in stenoses and thrombi. Patients suffering from this condition show a high risk for cardiovascular complications of the complete arterial vascular system, especially post-procedural. Thus, there is a need to optimize anti-thrombotic therapy. Data on multiple antiplatelet aggregation therapy including new drug classes are expected in the coming years. In addition, recent studies showed that direct oral anticoagulation provided clinical advantages combined with a reasonable safety profile. Management of risk factors such as overweight and nicotine and correction of metabolic disorders are not to be ignored and the background to further therapy. All treating physicians should be aware of these aspects to guarantee an optimal care and motivation of their patients.