Freie Mitteilungen 3
4. November 2022, 11:00 - 12:00, Gartensaal 2


Popliteal artery aneurysm: preliminary results of a population screening
S. Ruttkowski, S. Deglise, L. Mazzolai, A. Alatri, Presenter: A. Alatri (Lausanne)

Popliteal artery aneurysm (PAA) is frequently asymptomatic but, as abdominal aortic aneurysm (AAA), has potentially dramatic consequences resulting in arterial thrombosis and/or peripheral embolism with higher risk of limb ischemia and permanent sequalae (mainly amputation). Data about prevalence and natural history of PAA are very limited in men and absent in women. Moreover, the benefit of PAA screening has never been assessed so far. We aim to evaluate, by a population screening, the prevalence and characteristics of PAA
Monocentric, observational, prospective, Swiss cohort study. The following were included: men aged ≥65 years; women ≥65 years with history of smoking or arterial hypertension; men or women aged ≥55 years with familial history of aneurysm. Subjects with known or previously operated aneurysm as well as patients received aneurysmal screening in the last 12 months were excluded.
At the time of our analysis, 252 consecutive subjects, 53% men and 47% women, were screened. Median age was 69.2 and 70.4 years in men and women, respectively. We found 3 (2.3%) PAA in men and none in women. All three patients had a history of smoking. None of the patients required vascular surgery in the following 12 months. Concerning cardiovascular risk factors distribution, 70.7% of men was former or current smokers (vs 66.4% in women, p= 0.564). No differences in body mass index, dyslipidemia, and arterial hypertension were found in the two groups. Conversely, chronic renal failure and diabetes were more frequent in men.
The preliminary results of our study showed a non-negligible prevalence of PAA in men and highlighted the importance of PAA screening, considering the potential dramatic consequences of disease. These data need to be confirmed in a large sample-size. A multicentric international study, based on an opportunistic screening for PAA, is currently ongoing (NCT05360108).
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