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Dataset results
156 results for “aortic repair”
Cerebral and Spinal Protection of Xenon Post-conditioning in Patients Undergoing Aortic Dissection Repair
ClinicalTrials.gov study NCT02774096. IPD Sharing: UNDECIDED. Countries: 0. Publications: 0.
Intraoperative Perfusion Patterns of the Sigmoid Colon During Elective Open Abdominal Aortic Aneurysm Repair
ClinicalTrials.gov study NCT03429647. IPD Sharing: Not stated. Countries: 0. Publications: 0.
Pre-emptive Coil Embolization in Endovascular Aortic Repair
ClinicalTrials.gov study NCT06975215. IPD Sharing: UNDECIDED. Countries: 0. Publications: 0.
Evaluation of the Endovascular Repair for Aortic Aneurysm (EVAR) Program at LHSC
ClinicalTrials.gov study NCT00226629. IPD Sharing: Not stated. Countries: 0. Publications: 0.
A Pilot Study to Evaluate the Systemic Inflammatory Response of Thoracoabdominal Aortic Aneurysm Repair.
ClinicalTrials.gov study NCT00739557. IPD Sharing: Not stated. Countries: 0. Publications: 0.
Early Endovascular Repair Versus Surveillance for Women With Small Abdominal Aortic Aneurysm
ClinicalTrials.gov study NCT06394271. IPD Sharing: YES. Countries: 0. Publications: 0.
Restrictive Versus Standard Fluid Regime in Elective Minilaparotomy Abdominal Aortic Aneurysm Repair
ClinicalTrials.gov study NCT01939652. IPD Sharing: Not stated. Countries: 0. Publications: 0.
Outcomes of Secondary Endovascular Aortic Repair After Initial Frozen Elephant Trunk Procedure
ClinicalTrials.gov study NCT05571930. IPD Sharing: NO. Countries: 0. Publications: 0.
Data set from the article Mazzaccaro D, Muzzarelli L, Modafferi A, Nano G. Sizes of endografts for endovascular aortic repair: do few fit most? Ann Ital Chir. 2019;90:287-291. PMID: 31657351.
<p>Data set from the article Mazzaccaro D, Muzzarelli L, Modafferi A, Nano G. Sizes of endografts for endovascular aortic repair: do few fit most? Ann Ital Chir. 2019;90:287-291. PMID: 31657351.</p> <p> </p> <p>This is the abstract</p> <p><strong>Aim: </strong> The endoprostheses for the endovascular aortic repair (EVAR) of abdominal aortic aneurysms (AAA), are currently available in many sizes in reference to the aortic diameters of the proximal neck, but often not all of them are really used. Aim of our work was to review in our experience the most frequent proximal aortic diameters of main bodies that were used, among all those available for EVAR, with respect to the native proximal aortic neck.</p> <p><strong>Methods: </strong> All the sizes of main bodies of the different endografts used for EVAR from 2000 to 2016 were retrospectively counted. For each endograft, we calculated the number of times each size of main bodies' proximal diameter was used. The mean diameter of the proximal aortic neck was also calculated for each group of main bodies.</p> <p><strong>Results: </strong> From 2000 to 2016, 607 patients underwent EVAR for infrarenal AAA. Overall, mean diameter of the proximal aortic neck was 23.4 ± 0.5 mm (median 23.1 mm, IQR 22.2-23.7 mm). The most frequently used main bodies had a 28 mm, 26 mm and 25 mm proximal diameter (161/607, 26.5%; 147/607, 24.2%; 122/607, 20.1% respectively), for a mean proximal neck diameter of 23.2 ± 0.5 mm, 22.2 ± 0.4 mm and 22.1 ± 0.2 respectively. The least frequently used main bodies had a 21 mm and a 36 mm proximal diameter (3/607 times each, 0.5%), for a mean proximal neck diameter of 18.1 ± 0.2 mm and 32.4 ± 0.8 mm respectively.</p> <p><strong>Conclusions: </strong> In our experience, the most frequently used main bodies had a 25, 26 and 28 mm proximal diameters.</p>
Data set from Marrocco-Trischitta MM, Romarowski RM, de Beaufort HW, Conti M, Vitale R, Secchi F, Auricchio F, Trimarchi S. The Modified Arch Landing Areas Nomenclature identifies hostile zones for endograft deployment: a confirmatory biomechanical study in patients treated by thoracic endovascular aortic repair†. Eur J Cardiothorac Surg. 2019 May 1;55(5):990-997. doi: 10.1093/ejcts/ezy409. PMID: 30535119.
<p>Data set from Marrocco-Trischitta MM, Romarowski RM, de Beaufort HW, Conti M, Vitale R, Secchi F, Auricchio F, Trimarchi S. The Modified Arch Landing Areas Nomenclature identifies hostile zones for endograft deployment: a confirmatory biomechanical study in patients treated by thoracic endovascular aortic repair†. Eur J Cardiothorac Surg. 2019 May 1;55(5):990-997. doi: 10.1093/ejcts/ezy409. PMID: 30535119.</p> <p> </p> <p>This is the abstract:</p> <p><strong>Objectives: </strong>Our goal was to confirm whether the Modified Arch Landing Areas Nomenclature (MALAN) for thoracic endovascular aortic repair, in which each landing area is described by indicating both the proximal landing zone (PLZ) and the type of arch (e.g. 0/I), identifies unfavourable landing zones for endograft deployment in diseased aortas.</p> <p><strong>Methods: </strong>Preoperative computed tomography angiography scans of 10 patients scheduled for thoracic endovascular aortic repair for aneurysm or penetrating ulcer of the arch and with a potential hostile PLZ were reviewed. Five had proximal deployment planned in MALAN area 3/III and 5, in MALAN area 2/III. The angulation of each PLZ was calculated. Computational fluid dynamics modelling was used to compute magnitude and orientation of pulsatile displacement forces in each PLZ. Normalized values based on PLZ areas (i.e. equivalent surface traction) were calculated. Results were compared to those obtained in healthy controls stratified by the MALAN.</p> <p><strong>Results: </strong>Angulation was severe (>60°) in MALAN areas 3/III and 2/III, which was consistent with the findings obtained in healthy controls. Increased magnitude (P = 0.021) and unfavourable orientation (i.e. orthogonal to the longitudinal aortic axis) of equivalent surface traction (P = 0.011) was also found in these areas compared to the adjacent ones, following the same pattern seen in the controls. Adverse events related to proximal endograft performance were reported in 3/10 cases.</p> <p><strong>Conclusions: </strong>This study confirms in diseased aortas initial proof-of-concept findings on the predictive value of the MALAN to identify landing areas with a geometric and haemodynamic environment hostile for thoracic endovascular aortic repair. These adverse biomechanical features may entail an increased risk of dismal endograft performance.</p> <p> </p> <p> </p>
Data set from Marrocco-Trischitta MM, Alaidroos M, Romarowski RM, Secchi F, Righini P, Glauber M, Nano G. Geometric Pattern of Proximal Landing Zones for Thoracic Endovascular Aortic Repair in the Bovine Arch Variant. Eur J Vasc Endovasc Surg. 2020 May;59(5):808-816. doi: 10.1016/j.ejvs.2019.11.019. Epub 2019 Dec 27. PMID: 31889656.
<p>Marrocco-Trischitta MM, Alaidroos M, Romarowski RM, Secchi F, Righini P, Glauber M, Nano G. Geometric Pattern of Proximal Landing Zones for Thoracic Endovascular Aortic Repair in the Bovine Arch Variant. Eur J Vasc Endovasc Surg. 2020 May;59(5):808-816. doi: 10.1016/j.ejvs.2019.11.019. Epub 2019 Dec 27. PMID: 31889656.</p> <p> </p> <p>This is the abstract:</p> <p><strong>Objective: </strong>The aim was to investigate whether the "bovine" aortic arch (i.e. arch variant with a common origin of the innominate and left carotid artery (CILCA)) is associated with a consistent geometric configuration of proximal landing zones for thoracic endovascular aortic repair (TEVAR).</p> <p><strong>Methods: </strong>Anonymised thoracic computed tomography (CT) scans of healthy aortas were reviewed to retrieve 100 cases of CILCA. Suitable cases were stratified according to type 1 and 2 CILCA, and also based on type of arch (I, II, and III). Further processing allowed calculation of angulation and tortuosity of the proximal landing zones. Centre lumen line lengths of each proximal landing zone were measured in a view perpendicular to the centre line. All geometric features were compared with those measured in healthy patients with a standard arch configuration (n = 60). Two senior authors independently evaluated the CT scans, and intra- and interobserver repeatability were assessed.</p> <p><strong>Results: </strong>The 100 selected patients (63% male) were 71.4 ± 7.7 years old. Type 1 CILCA (62/100) was more prevalent than type 2 CILCA (38/100), and the two groups were comparable in age (p = .11). Zone 3 presented a severe angulation (i.e. > 60°), which was greater than in Zone 2 (p < .001), and a consistently greater tortuosity than Zone 2 (p = .003). This pattern did not differ between type 1 and type 2 CILCA. A greater tortuosity was also observed in Zone 0, which was related to increased elongation of the ascending aorta (i.e. Zone 0), than the standard configuration. The CILCA had an overall greater elongation, and Zone 2 also was specifically longer. When stratifying by type of arch, reversely from Type III to Type I, the CILCA presented a gradual flattening of its transverse tract, which entailed a consistent progressive elongation (p = .03) and kinking of the ascending aorta, with a significant increase of Zone 0 angulation to even a severe degree (p = .001). Also, from Type III to Type I, Zone 2 presented a progressively shorter length (p = .004), which was associated with increased tortuosity (p < .05). Mean intra- and interobserver differences for angulation measurements were 1.4° ± 6.8° (p = .17) and 2.0° ± 10.1° (p = .19), respectively.</p> <p><strong>Conclusion: </strong>CILCA presents a consistent and peculiar geometric pattern compared with standard arch configuration, which provides relevant information for TEVAR planning, and may have prognostic implications.</p> <p> </p>
Data set from Nano G, Muzzarelli L, Malacrida G, Righini PC, Marrocco-Trischitta MM, Mazzaccaro D. Endovascular repair of thoracic and thoraco-abdominal aortic lesions. Ann Ital Chir. 2019;90:191-200. PMID: 31354152.
<p>Data set from Nano G, Muzzarelli L, Malacrida G, Righini PC, Marrocco-Trischitta MM, Mazzaccaro D. Endovascular repair of thoracic and thoraco-abdominal aortic lesions. Ann Ital Chir. 2019;90:191-200. PMID: 31354152.</p> <p> </p> <p>This is the abstract:</p> <p><strong>Background: </strong> We report our "real-world" experience of endovascular repair of thoracic/thoraco-abdominal aortic lesions in patients treated from May 2002 to May 2017.</p> <p><strong>Methods: </strong> Data of all consecutive treated patients were retrospectively collected in a database and analyzed. Patients were divided into 4 groups: atherosclerotic thoracic/thoraco-abdominal aneurysms (TAA/TAAA) and floating thrombus (group A); acute complicated type B dissection (TBD), penetrating aortic ulcers (PAU) and intra-mural hematomas (IMH) in group B; chronic TBD evolving in TAA (group C); traumatic injuries (group D). Mortality, reinterventions and occurrence of neurological complications, both at 30 days and in the long term, were analyzed as primary outcomes for each group.</p> <p><strong>Results: </strong> Ninety-four patients were treated complessively, most for a TAA (55.3%). Thirty-days deaths and neurological complications were observed in group A only (5 cases each, 5.3%). A reintervention was necessary in 6 patients (6.4%) of group A. At 5 years, in group A survival was 62.8%±6.3% and freedom from neurological complication was 88.3%±4.2%. Neither deaths nor neurological complications were recorded in the other groups. No late aortic ruptures were recorded. Freedom from reintervention in group A was 54.7%±7.6% at 5 years and a reintervention was needed in all patients of group D. Overall, the main cause for reintervention was a type I endoleak.</p> <p><strong>Conclusions: </strong> The endovascular repair of thoracic/thoraco-abdominal aortic lesions had acceptable mortality and neurological complication rates, both at 30 days and in the long term. Reinterventions in the long term occurred more frequently after TAA/TAAA and traumatic injuries, and were mainly required for a type I endoleak.</p> <p> </p>
DataSet_Simultaneous versus staged approach in transcatheter aortic valve implantation for severe stenosis and endovascular aortic repair for thoracic and abdominal aortic aneurysm
Open the record for dataset details and reuse information.
Computational Fluid Dynamics Modeling of Proximal Landing Zones for Thoracic Endovascular Aortic Repair in the Bovine Arch Variant.
<p>Dataset from the article Marrocco-Trischitta MM, Romarowski RM, Alaidroos M, Sturla F, Glauber M, Nano G. Computational Fluid Dynamics Modeling of Proximal Landing Zones for Thoracic Endovascular Aortic Repair in the Bovine Arch Variant. Ann Vasc Surg. 2020 Nov;69:413-417. doi: 10.1016/j.avsg.2020.05.024. Epub 2020 May 29. PMID: 32479874.</p> <p><strong>Abstract</strong></p> <p><strong>Background: </strong>To assess the endograft displacement forces (DF), which quantify the forces exerted by the pulsatile blood flow on the vessel wall and transmitted on the terminal fixation site of the endograft after its deployment in proximal landing zones (PLZs) of the bovine aortic arch variant.</p> <p><strong>Methods: </strong>Thirty healthy aortic computed tomographic angiographies of subjects with bovine arch configuration (10 per type of arch, I-III) were selected for the purpose of the study. A 3-dimensional model of the aortic arch lumen was reconstructed. Computational fluid dynamics modeling was then used to compute DF magnitude and orientation (i.e., x, y, and z axes) in PLZs of each case. DF values were normalized to the corresponding aortic wall area to estimate equivalent surface traction (EST).</p> <p><strong>Results: </strong>DF were highest in zone 0, consistently with the greater surface area. DF in zone 3 were much greater than in zone 2 because of a 3-fold greater upward component (z axis) (P < 0.001), being therefore mainly oriented orthogonally to the aortic blood flow and to the vessel longitudinal axis in that zone. EST progressively increased from zone 0 toward more distal PLZs, with EST in zone 3 being much greater than that in zone 2 (P < 0.001). The same pattern was observed after stratification by type of arch.</p> <p><strong>Conclusions: </strong>The bovine arch is associated with a consistent fluid dynamic pattern, which identifies in zone 3 an unfavorable biomechanical environment for endograft deployment.</p>
Psoas Cross-Sectional Measurements Using Manual CT Segmentation before and after Endovascular Aortic Repair (EVAR).
<p>Monti CB, Righini P, Bonanno MC, Capra D, Mazzaccaro D, Giannetta M, Nicolino GM, Nano G, Sardanelli F, Marrocco-Trischitta MM, Secchi F. Psoas Cross-Sectional Measurements Using Manual CT Segmentation before and after Endovascular Aortic Repair (EVAR). J Clin Med. 2022 Jul 12;11(14):4023. doi: 10.3390/jcm11144023. PMID: 35887786; PMCID: PMC9325160.</p> <p>Abstract</p> <p>Sarcopenia has been associated with an increased incidence of adverse outcomes, including higher mortality, after endovascular aortic repair (EVAR). We aim to use computed tomography (CT) to quantify changes in total psoas muscles area (PMA) and psoas muscle density (PMD) after EVAR, and to evaluate the reproducibility of both measurements. PMA and PMD were assessed via manual segmentation of the psoas muscle on pre- and post-operative CT scans belonging to consecutive patients who underwent EVAR. Wilcoxon test was used to compare PMA and PMD before and after EVAR, and inter- and intra-reader agreements of both methods were evaluated through Bland-Altman analysis. A total of 50 patients, 42 of them males (84%), were included in the study. PMA changes from 1243 mm<sup>2</sup> (1006-1445 mm<sup>2</sup>) to 1102 mm<sup>2</sup> (IQR 937-1331 mm<sup>2</sup>), after EVAR (<em>p</em> &lt; 0.001). PMD did not vary between pre-EVAR (33 HU, IQR 26.5-38.7 HU) and post-EVAR (32 HU, IQR 26-37 HU, <em>p</em> = 0.630). At inter-reader Bland-Altman analysis, PMA showed a bias of 64.0 mm<sup>2</sup> and a coefficient of repeatability (CoR) of 359.2 mm<sup>2</sup>, whereas PMD showed a bias of -2.43 HU and a CoR of 6.19 HU. At intra-reader Bland-Altman analysis, PMA showed a bias of -81.1 mm<sup>2</sup> and a CoR of 394.6 mm<sup>2</sup>, whereas PMD showed a bias of 1.41 HU and a CoR of 6.36 HU. In conclusion, PMA decreases after EVAR. A good intra and inter-reader reproducibility was observed for both PMA and PMD. We thus propose to use PMA during the follow-up of patients who underwent EVAR to monitor muscle depletion after surgery.</p>
Safe Follow-Up after Endovascular Aortic Repair with Unenhanced MRI: The SAFEVAR Study
<p>Secchi F, Capra D, Monti CB, Mobini N, Ortiz MDMG, Trimarchi S, Mazzaccaro D, Righini P, Nano G, Sardanelli F. Safe Follow-Up after Endovascular Aortic Repair with Unenhanced MRI: The SAFEVAR Study. Diagnostics (Basel). 2022 Dec 21;13(1):20. doi: 10.3390/diagnostics13010020. PMID: 36611311; PMCID: PMC9818075.</p> <p>Abstract</p> <p>We aimed to investigate whether unenhanced magnetic resonance imaging (MRI) could represent a safe and highly sensitive tool for endoleak screening in patients treated with endovascular aneurysm repair (EVAR) using computed tomography angiography (CTA) as a reference standard. Patients who underwent CTA for EVAR follow-up at our institution were prospectively enrolled. All MRI examinations were performed with a 1.5 T unit. The true-FISP and HASTE sequences of the MRI scans were assessed for the presence of hyperintensity within the aneurysm sac outside the graft, whereas phase-contrast through-plane sequences were used for blood flow quantification. We included 45 patients, 5 (11%) of whom were female. The median age was 73 years (IQR 68-78 years). Among our patients, 19 (42%) were positive for endoleaks at CTA, of whom 13 (68%) had type II endoleaks and 6 (32%) had type I endoleaks. There were no significant differences in age, sex, aneurysm type, prosthesis type, or contrast-to-noise ratio between hyperintensity and thrombus between patients with and without endoleaks (<em>p</em> &gt; 0.300). The combined evaluation of true-FISP and HASTE yielded 100% sensitivity (95% CI: 79-100%) and 19% specificity (95% CI: 7-40%). Patients with a positive CTA had a median thrombus flow of 0.06 L/min (IQR 0.03-0.23 L/min), significantly greater than that of patients with a negative CTA (<em>p</em> = 0.007). Setting a threshold at 0.01 L/min, our MRI protocol yielded 100% sensitivity, 56% specificity, and an AUC of 0.76 (95% CI 0.60-0.91). In conclusion, unenhanced MRI has perfect sensitivity for endoleak detection, although with subpar specificity that could be improved with phase-contrast flow analysis.</p>
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Allen Brain Atlas
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