Feasible evaluation of PQ bypass results with duplex ultrasound

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dc.contributor.authorLācis, Aigars
dc.contributor.authorEzīte, Natālija
dc.contributor.authorŠavlovskis, Jānis
dc.contributor.authorKukulis, Indulis
dc.contributor.authorRumba, Roberts
dc.contributor.authorStrīķe, Eva
dc.contributor.authorZellāns, Edgars
dc.contributor.authorĻūļaka, Inguna
dc.contributor.authorKrieviņš, Dainis
dc.contributor.institutionRīga Stradiņš University
dc.date.accessioned2021-09-07T13:10:04Z
dc.date.available2021-09-07T13:10:04Z
dc.date.issued2020
dc.descriptionPublisher Copyright: © 2019 Sciendo. All rights reserved. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
dc.description.abstractPatients with peripheral arterial disease (PAD) have substantially impaired health-related quality of life (HR-QoL). Chronic lower limb ischaemia due to the atherosclerotic occlusion of infra-inguinal arteries is one of the most important causes of invalidity among smokers over the age of fifty. Historically, these lesions were treated by open bypass surgery. Less invasive endovascular revascularisation methods are available to treat short lesions, while treatment of long lesions are lacking. Fully endovascular trans-venous femoro-popliteal bypass (PQ Bypass, Inc., Sunnyvale, CA, USA) to treat long femoral lesions has been developed recently. The objective of the study was to evaluate duplex ultrasound (DUS) as a tool to follow up patients after PQ bypass proce¬ dure. A prospective clinical study was conducted at one clinical site. DUS of treated arteries and femoral vein was performed before the procedure, 30 days, 6 months, and 12 months in follow-up period by 2 independent radiologists. Ankle-brachial index (ABI) evaluation was performed at all visits. Thirty-five patients (35 limbs) treated with PQ bypass were enrolled in the study. Median age was 63.6 years (ranged 50 to 87 years). There was 100% successful evaluation of all pa¬ tients at all clinical visits available. Deviation of the DUS results was found within the accepted standard limit between two radiologists. Twelve months after the PQ procedure, 28 (80.0%) PQ stent-grafts were still functioning without DUS signs of stenosis, while seven (20.0%) limbs expe¬ rienced varying degrees of stent malfunction. PQ stent-graft occlusion was detected in five (14.3%) - 1 (2.9%) patients at one-month follow-up, 3 (8.6%) at six months and 1 (2.9%) at twelve months follow-up period, respectively. PQ stent-graft proximal junction stenosis was detected in one patient (2.9%) at six months and distal junction stenosis in one patient (2.9%) at twelve months follow-up, respectively. Despite of graft occlusion found with DUS, two patients had no severe worsening of post-operative ABI. DUS is a reliable method to evaluate patients after PQ bypass procedure and has higher sensitivity than ABI to follow-up patients after PQ proce¬ dure, especially in asymptomatic stent stenosis. Regular and timely use of DUS during the postoperative period may help to recognise potential complications and provide effective treat¬ ment..en
dc.description.statusPeer reviewed
dc.format.extent6
dc.format.extent1001308
dc.identifier.citationLācis, A, Ezīte, N, Šavlovskis, J, Kukulis, I, Rumba, R, Strīķe, E, Zellāns, E, Ļūļaka, I & Krieviņš, D 2020, 'Feasible evaluation of PQ bypass results with duplex ultrasound', Proceedings of the Latvian Academy of Sciences, Section B: Natural, Exact, and Applied Sciences, vol. 73, no. 5, pp. 440-445. https://doi.org/10.2478/prolas-2019-0069
dc.identifier.doi10.2478/prolas-2019-0069
dc.identifier.issn1407-009X
dc.identifier.urihttps://dspace.rsu.lv/jspui/handle/123456789/6236
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85079363539&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofProceedings of the Latvian Academy of Sciences, Section B: Natural, Exact, and Applied Sciences
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectArterial bypass
dc.subjectPeripheral arterial occlusive disease
dc.subjectStent graft
dc.subject3.2 Clinical medicine
dc.subject1.1. Scientific article indexed in Web of Science and/or Scopus database
dc.subjectGeneral
dc.titleFeasible evaluation of PQ bypass results with duplex ultrasounden
dc.type/dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article

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