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International Angiology 2013 June;32(3):319-26

Copyright © 2013 EDIZIONI MINERVA MEDICA

lingua: Inglese

Austrian National Carotid Intervention Numbers prompt improvement in secondary stroke prevention

Duschek N. 1, Waldhör T. 2, Falkensammer J. 1, Skrinjar E. 1, Koulas S. 1, Bayer G. S. 1, Assadian A. 1

1 Department of Vascular and Endovascular Surgery, Wilhelminenspital, Vienna, Austria; 2 Department of Epidemiology, Center for Public Health, Medical University of Vienna, Vienna, Austria


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Background: As recent data suggest a variable benefit of carotid endarterectomy (CEA) or stenting (CAS), a careful selection of patients is mandatory for efficient stroke prevention. This retrospective study analyzed carotid intervention rates from 1999-2008 in Austria. The aim was to assess whether interventions for carotid stenosis were performed with respect to epidemiological trends and published data taking into account intervention type, age and gender.
Methods: Intervention numbers for internal carotid artery (ICA)-stenosis from a 10 years period (1999 to 2008) were retrieved from the national Austrian registry for hospital funding. Patients were grouped by gender, age (0-64, 65-74, older than 75 years) and intervention type.
Results: CEA rates amounted to 32.2±1.4 per 100000 persons annually (female: 22.1±0.7, male: 43.0±2.3). Each year 9.1 CAS±1.6 per 100000 Austrians were performed (female: 9.3±1.8, male 8.9±1.7). CAS numbers increased (P<0.05), whereas CEA numbers stagnated, especially in older age groups. Women were more likely to undergo CAS than CEA compared to men.
Conclusion: Relative intervention rates for carotid stenosis have rather stagnated, although stroke incidence increases continuously in an overaging society. Despite controversial data, CAS rates have been rising constantly in elderly women. Secondary stroke prevention in Austria can be improved by a careful selection of future patients, especially with regard to female gender and type of intervention.

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