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Udsen Tolstrup posted an update 6 hours, 40 minutes ago
-TEVAR offers a less invasive treatment option to extend the seal zone in selected patients with an unfavourable PLZ, allowing for a durable repair in terms of overall survival and reintervention. Periprocedural stroke remains a principle concern.
Scallop-TEVAR offers a less invasive treatment option to extend the seal zone in selected patients with an unfavourable PLZ, allowing for a durable repair in terms of overall survival and reintervention. Periprocedural stroke remains a principle concern.
Endograft sizing for endovascular abdominal aortic aneurysm repair (EVAR) is not consistent despite published instructions for use (IFU). We sought to identify factors associated with over/undersizing, determine sex influence on sizing, and examine sizing effects on endoleak, reintervention, and mortality by analyzing data obtained from the W.L. Gore & Associates Global Registry for Endovascular Aortic Treatment (GREAT).
All patients enrolled in GREAT undergoing EVAR were included for analysis. Proximal/distal aortic landing zones were compared with device implanted to assess sizing as related to IFU. χ
/Fisher exact tests were used to evaluate associations between IFU sizing and demographics. Logistic regression modeling was used to identify predictors of outside IFU sizing. Cox proportional hazards regression analyzed the relationship between sizing and endoleak, device-related reinterventions, and all-cause/aortic mortality.
There were 3607 EVAR subjects enrolled in GREAT as of March 2020. Of thh adverse outcomes.
Conventional two-dimensional ultrasound (2D-US) is the recommended and preferred modality for diagnosis and surveillance of abdominal aortic aneurysms (AAAs). Aneurysm diameter based on three-dimensional ultrasound (3D-US) has shown promising results in a research setup, improving agreement and reproducibility. Studies evaluating 3D-US in a clinical context are lacking and may hinder optimal utilization of this new modality. In this study we investigated the clinical value of 3D-US for AAA surveillance compared to the current standard US examination.
In total, 126 patients with infra-renal AAAs smaller than 50 and 55mm (female and male) were available for analysis. Eligibility was determined by the standard 2D-US anterior-to-posterior (AP) diameter using dual-plane technique and all patients subsequently underwent additional 3D-US and computed tomographic angiography (CTA). Using CTA as the gold standard, maximal standard US AP diameter was compared to 3D-US.
All 126 AAAs were per inclusion small and in will substantially change the clinical management, from surveillance to operative treatment in approximately one fourth of the AAA patients. Further studies evaluating the clinical consequences of 2D to 3D paradigm shift in AAA diagnostics is warranted, including sensitivity, specificity, agreement and reproducibility estimation.
Thoracic endovascular aortic repair (TEVAR) can change the morphology of the flow lumen in aortic dissections, which may affect aortic hemodynamics and function. This study characterizes how the helical morphology of the true lumen in type B aortic dissections is altered by TEVAR.
Patients with type B aortic dissection who underwent computed tomography angiography before and after TEVAR were retrospectively reviewed. Images were used to construct three-dimensional stereolithographic surface models of the true lumen and whole aorta using custom software. Stereolithographic models were segmented and co-registered to determine helical morphology of the true lumen with respect to the whole aorta. Saracatinib inhibitor The true lumen region covered by the endograft was defined based on fiducial markers before and after TEVAR. The helical angle, average helical twist, peak helical twist, and cross-sectional eccentricity, area, and circumference were quantified in this region for pre- and post-TEVAR geometries.
Sixteen patients (61kscrew shape of the true lumen, and in combination with more circular and expanded lumen cross-sections, TEVAR produced luminal morphology that theoretically allows for lower flow resistance through the endografted portion. The impact of TEVAR on dissection flow lumen morphology and the interaction between endografts and aortic tissue can provide insight for improving device design, implantation technique, and long-term clinical outcomes.
The long-term success of endovascular aneurysm repair (EVAR) is limited by complications, most importantly endoleaks. In case of (persistent) type I endoleak (T1EL), secondary intervention is indicated to prevent secondary aneurysm rupture. Different treatment options are suggested for T1ELs, such as endo anchors, (fenestrated) cuffs, embolization, or open conversion. Currently, the treatment of T1EL with liquid embolic agents is available; however, results are not yet addressed. This review presents the safety and efficacy of embolization with liquid embolic agents for treatment of T1ELs after EVAR.
A systematic literature search was performed for all studies reporting the use of liquid embolic agents as monotherapy for treatment of T1ELs after EVAR. Patient numbers, technical success (successful delivery of liquid embolics in the T1EL) and clinical success (absence of aneurysm related death, endoleak recurrence or additional interventions during follow-up) were examined.
Of 1604 articles, 10 studies m embolization for T1EL is high, although long-term clinical success rates are lacking. Within this review, the risk of secondary rupture is comparable with untreated T1EL at 2% with a median follow-up of 13 months, regardless of the initial success of embolization. In general, no decrease in secondary aneurysm rupture after embolization of T1EL after EVAR is demonstrated, although the results of late embolization are debated.
Extracranial carotid artery aneurysms (ECCAs) are rare; however, they are associated with a high risk of stroke and mortality if untreated. In the present review, we compared the major outcomes between open and endovascular repair of ECCAs.
We systematically searched PubMed, Embase, Scopus, and the Cochrane Library for clinical studies reported online up to September 2020 that had evaluated major outcomes after both open and endovascular repair of ECCAs. Eligible studies were required to have evaluated at least the 30-day mortality or stroke and/or transient ischemic attack rates. The quality of the studies was also evaluated.
Overall, seven studies (three high quality, two medium quality, and two low quality) with 374 patients and 383 ECCAs were eligible. All the studies had been reported from 2004 to 2020. In total, 220 open repairs were compared with 81 endovascular repairs. The open and endovascular treatments showed similar 30-day mortality rates (4% vs 0%; pooled odds ratio [OR], 2.67; 95% confidence interval [CI], 0.