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Popliteal aneurysms are common among men with screening detected abdominal aortic aneurysms, and prevalence correlates with the diameters of the common iliac arteries
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi. Department of Hybrid and Interventional Surgery, Sahlgrenska University Hospital.ORCID-id: 0000-0003-2560-9501
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi.ORCID-id: 0000-0002-3273-8726
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Kärlkirurgi.ORCID-id: 0000-0001-6561-9734
2020 (engelsk)Inngår i: European Journal of Vascular and Endovascular Surgery, ISSN 1078-5884, E-ISSN 1532-2165, Vol. 59, nr 1, s. 67-72Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background: Data on the prevalence of popliteal artery aneurysm (PA) are scarce and difficult to interpret as the definition differs among papers. The aim was to investigate the prevalence among men with screening detected abdominal aortic aneurysms (>= 30 mm, AAAs) and subaneurysmal aortic dilatation (25-29 mm, SAA), and to explore whether the existence of a PA correlated with the diameters of the aorta, iliac, and femoral arteries.

Methods: In Uppsala, Sweden, a county with 376 000 inhabitants, AAA screening of 65 year old men was initiated in 2006. All men with AAA and SAA also had measurements of the common iliac artery (CIA). The common femoral (CFA), superficial femoral (SFA), and popliteal arteries were evaluated at re-examination, performed after 1-2 years for AAA and five years for SAA. PA was defined as >= 12 mm, or 1.5 times larger than the distal SFA according to the ISCVS/SVS Ad Hoc Committee. The relationships between PA and other vessel diameters were explored.

Results: A total of 19 820 65 year old men (84.6%) accepted the invitation to screening between 2006 and 2017. AAA was found in 173 (0.9%), and SAA in 149 subjects (1.1% of those screened 2006-2013, eligible for this study). In the whole cohort, 14.2% of those examined had at least one PA of any size, 3.0% were >= 15 mm and 2.2% >= 20 mm. There was no difference in PA prevalence between AAA and SAA: 15.9% vs. 12.2% (p = .48). There was no difference in aortic diameter in those with or without PA (p = .46), but there were significant correlations with CIA (p < .001), CFA (p < .001), and SFA (p < .001) diameters.

Conclusions: A high prevalence of PA among subjects with screening detected AAA and SAA was found. PA was not correlated with the aortic diameter in this cohort, where all had dilated aortas, while correlations with peripheral and iliac artery diameters were identified.

sted, utgiver, år, opplag, sider
2020. Vol. 59, nr 1, s. 67-72
Emneord [en]
Abdominal aortic aneurysm; Popliteal artery aneurysm; Iliac artery; Screening, Prevalence.
HSV kategori
Forskningsprogram
Kirurgi
Identifikatorer
URN: urn:nbn:se:uu:diva-381518DOI: 10.1016/j.ejvs.2019.07.042ISI: 000506204700013PubMedID: 31757587OAI: oai:DiVA.org:uu-381518DiVA, id: diva2:1303769
Merknad

Title in dissertation list of papers: Popliteal aneurysms are common among men with screening detected abdominal aortic aneurysms, and the prevalence is correlated with the diameters of the common iliac arteries

Tilgjengelig fra: 2019-04-10 Laget: 2019-04-10 Sist oppdatert: 2020-01-27bibliografisk kontrollert
Inngår i avhandling
1. Popliteal Artery Aneurysms: - epidemiology, treatment and results
Åpne denne publikasjonen i ny fane eller vindu >>Popliteal Artery Aneurysms: - epidemiology, treatment and results
2019 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Popliteal aneurysms (PA) are limb threatening, since the aneurysm thrombose and emboli from the aneurysm sac occlude the distal vessels, resulting in chronic or acute limb ischaemia. Open surgical repair (OSR) has been challenged by endovascular repair (ER), a minimal invasive technique. Little is known of long-term result, and comparisons of the methods have been difficult, since patients chosen for ER are mainly asymptomatic and have better outflow.

The overall aim of this thesis was to study epidemiology and risk factors to optimize patient selection and techniques for surgical treatment of PA.

Papers I and II: Data on all patients treated 2008-2012 (592 PAs in 499 patients) were analysed in the Swedish Vascular registry, Swedvasc. Patency was inferior after ER, in particular for patients with acute ischaemia. Nested in this cohort, a case-control study was performed, and the legs treated by ER (77) were matched, by indication, with twice the number treated with OSR (154). Medical records and radiologic images were collected and examined in a core-lab. In this matched cohort, the only independent risk factors for occlusion were ER and poor outflow. In a sub-group analysis of ER, risk factors for occlusion were acute ischaemia, poor out-flow, smaller stent graft diameter and elongation.

Paper III: Prevalence of PA was studied in men, screened for abdominal aortic aneurysm (AAA) and of sub aneurysmal aorta, 25-29 mm. Prevalence of PA was high, 14.2%, and correlated with dilatation of the iliac arteries.

Paper IV: Operations for ruptured PA (rPA) were identified in Swedvasc 1987-2012, medical records were reviewed. Compared with patients treated for other indications, they were 8 years older, had twice as large aneurysms (mean 64 mm) and many were treated with anticoagulants. The initial clinical picture was misleading.

In conclusion, when treating PA the preferred surgical technique is OSR with a vein graft. Anatomical features of the popliteal artery and outflow vessels affect outcome. These findings are important for future surgical decision making.

sted, utgiver, år, opplag, sider
Uppsala: Acta Universitatis Upsaliensis, 2019. s. 64
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 1568
Emneord
Popliteal artery aneurysms, Endovascular, Open surgery, Outcome, Occlusion, Screening, Prevalence, Rupture
HSV kategori
Forskningsprogram
Kirurgi
Identifikatorer
urn:nbn:se:uu:diva-381534 (URN)978-91-513-0642-1 (ISBN)
Disputas
2019-06-01, Sal IV, Universitetshuset, Biskopsgatan 3, Uppsala, 13:00 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2019-05-07 Laget: 2019-04-10 Sist oppdatert: 2019-06-17

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