China
Africa
Explore chapters and articles related to this topic
Cardiovascular system
Published in A Stewart Whitley, Jan Dodgeon, Angela Meadows, Jane Cullingworth, Ken Holmes, Marcus Jackson, Graham Hoadley, Randeep Kumar Kulshrestha, Clark’s Procedures in Diagnostic Imaging: A System-Based Approach, 2020
A Stewart Whitley, Jan Dodgeon, Angela Meadows, Jane Cullingworth, Ken Holmes, Marcus Jackson, Graham Hoadley, Randeep Kumar Kulshrestha
Figures 9.35a,b show the major branches of the thoracic and abdominal aorta. The abdominal aorta bifurcates into the right and left common iliac arteries, usually at the level of L4. Each common iliac artery further divides into the internal iliac artery, which supplies the pelvis, and the external iliac artery, which continues down the leg to become the common femoral artery (CFA) once it crosses below the inguinal ligament. A few centimetres below the inguinal ligament the CFA divides into the deep (profunda femoris, PFA) and superficial femoral (SFA) arteries.
Profile of the Ovation ALTO abdominal stent graft for the treatment of abdominal aortic aneurysms: overview of its safety and efficacy
Published in Expert Review of Medical Devices, 2021
Mark Gregory, Matt Metcalfe, Kate Steiner
The 5-year follow up data from the ENCORE database are highly satisfactory, demonstrating a freedom from aneurysm related mortality rate of 99.3%. Freedom from type 1A endoleak was found to be 95.8% and freedom from sac expansion 84.9% [48]. Of the patients in the database, 50% were found to have complex aortic anatomy, (defined as one of: neck length <10 mm, neck angle >60°, reverse neck taper >10%, distal common iliac artery diameter <10 mm, or external iliac artery diameter <6 mm). Despite the high rate of complex anatomy, technical success was achieved in 99.7% of cases and the 30-day mortality rate only 0.3% [48]. Direct comparative data between devices in comparable aneurysm anatomy is highly limited, however it is useful to note that in one multicentre study endovascular aneurysm repair with the Ovation stent graft achieved favorable 5-year results, where 41% of the patients had anatomy deemed unsuitable for other stent grafts [47].
Technical success and outcomes using a flexible bifurcated stent graft (AorfixTM) in abdominal aortic aneurysms: a systematic review
Published in Expert Review of Medical Devices, 2021
Aazeb Khan, Emily Khoo, Vivak Hansrani, Mohamed Banihani, Haisum Qayyum, George A. Antoniou, Bella Huasen
The majority of the complications listed in Table 3 occurred due to partial or complete coverage of a visceral aortic branch by the endograft, or limb occlusion. There were four reported cases of acute limb ischemia, requiring intervention, of which three were within 2 days of the primary procedure [12,13], and the fourth patient presented on day 14 post procedure due to endograft limb occlusion [16]. Internal iliac artery occlusion reported in 12 patients (planned in one only) had mild buttock claudication symptoms and required no intervention. One author reports an ipsilateral external iliac artery occlusion occurring due to damage from the delivery system [7]. There were two reported cases of bowel ischemia, one managed conservatively [13], and the other patient died due to bowel infarction found on laparotomy [12]. Out of the four patients reported to have renal impairment, only one required renal artery stenting [13], but none of them required any renal support.
An update on the improvement of patient eligibility with the use of new generation endografts for the treatment of abdominal aortic aneurysms
Published in Expert Review of Medical Devices, 2020
Nikolaos Kontopodis, Nikolaos Galanakis, Ifigeneia Tzartzalou, Emmanouil Tavlas, Efstratios Georgakarakos, Ioannins Dimopoulos, Dimitrios Tsetis, Christos V Ioannou
A recent report from the ENCORE registry indicated that for a median follow up of 2.8 years and taking into account 1296 subjects, technical success was 99.7%, while freedom from type IA endoleak at 1, 3, and 5 years was 97.6%, 97.1%, and 95.8%, respectively and type I or III endoleak 96.9%, 95.7%, and 94.0%, respectively. Freedom from device-related reintervention at 1, 3, and 5 years was 96.2%, 94.4%, and 92.4%, and primary freedom from sac expansion was 97.0%, 90.3%, and 84.9% respectively. Freedom from all-cause mortality and aneurysm-related mortality at 5 years was 78.9% and 99.3%. These results were obtained even though 50% of patients presented complex aortic anatomy, (neck length <10 mm, neck diameter >28 mm, neck angle >60, reverse neck taper >10%, distal common iliac artery diameter <10 mm, or external iliac artery diameter <6 mm) [15]. These outcomes are similar to our unpublished data and indicate the favorable mid-term results with the use of Ovation iX for EVAR.