12 results on '"aorta reconstruction"'
Search Results
2. Primary Sarcoma of Descending Aorta
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Domenico Galetta, Lorenzo Spaggiari, Rosa Spirito, Giulia Sedda, Adele Tessitore, and Alessio Vincenzo Mariolo
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High rate ,medicine.medical_specialty ,Aorta ,Poor prognosis ,Medical treatment ,business.industry ,descending aorta ,Case Report ,intimal sarcoma ,Surgery ,Resection ,aorta reconstruction ,medicine.artery ,Descending aorta ,cardiovascular system ,medicine ,Radiology, Nuclear Medicine and imaging ,Cardiology and Cardiovascular Medicine ,Primary sarcoma ,business ,Intimal sarcoma - Abstract
Primitive aortic sarcomas are rare tumors characterized by resistance to medical treatment and a poor prognosis with high metastatic rates and local recurrences. Surgery remains the mainstay treatment and is based on challenging and technically demanding resections with high rate of major intraoperative and postoperative complications. We report the case of a patient with primitive intimal sarcoma of the aorta, who underwent a descending aortic resection and reconstruction with a prosthetic tube.
- Published
- 2019
- Full Text
- View/download PDF
3. A case of metastatic adenocarcinoma from an unknown primary involving the aortic bifurcation
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Ahmad Rafizi Hariz Ramli, Suria Hayati Md Pauzi, Mohamad Azim Md Idris, Lenny Suryani Safri, Hanafiah Harunarashid, and Mohamad Syafeeq Faeez Md Noh
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lcsh:Diseases of the circulatory (Cardiovascular) system ,medicine.medical_specialty ,Aorta reconstruction ,Metastatic adenocarcinoma ,lcsh:Surgery ,030204 cardiovascular system & hematology ,Dacron graft ,Malignant tumor at the aortic bifurcation ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Graft occlusion ,medicine ,business.industry ,lcsh:RD1-811 ,Aortic bifurcation ,medicine.anatomical_structure ,lcsh:RC666-701 ,Acute abdomen ,cardiovascular system ,Total removal ,Unknown primary ,Surgery ,Radiology ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business - Abstract
Aortic malignant neoplasms are rare; these may be primary or secondary (metastatic). Increasing use of cross-sectional imaging has allowed better detection and diagnosis of these conditions. We encountered a young woman presenting with acute abdomen who was found on cross-sectional imaging to have a malignant tumor involving the aortic bifurcation. An en bloc excision of the tumor was performed, with distal aorta reconstruction using an aortoiliac Dacron graft; this was complicated with infection and graft occlusion, necessitating total removal and extra-anatomic bypass. A pathologic diagnosis of metastatic adenocarcinoma involving the aortic bifurcation, with an unknown primary, was made.
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- 2018
- Full Text
- View/download PDF
4. Automatic 3D Aorta Segmentation in CT Images
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Qingliang Chen, Zhang Meisong, Xiaojie Duan, and Jianming Wang
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Aortic arch ,Aorta ,Level set method ,Computer science ,Aorta reconstruction ,business.industry ,02 engineering and technology ,030204 cardiovascular system & hematology ,Image (mathematics) ,03 medical and health sciences ,0302 clinical medicine ,medicine.artery ,Fully automatic ,0202 electrical engineering, electronic engineering, information engineering ,medicine ,020201 artificial intelligence & image processing ,Computer vision ,Segmentation ,High incidence ,Artificial intelligence ,business - Abstract
Cardiovascular disease is one of the most common high incidence diseases, which leads to the urgent demand of 3D aorta shape reconstruction with CT images for help doctors making effective and accurate diagnosis. In literature, 3D aorta reconstruction methods with CT images mainly were based manual or semi-automatic operations, which would limit the practical applications of the technique. In the paper, a fully automatic 3D aorta segmentation algorithm was proposed. Firstly, the 2D shape of aortic arch in a CT image was utilized to locate the 3D position in CT image sequence. Then, a level set method was adopted to segment all the aortic edge in the whole CT image sequence by taking the aortic arch edge as the initial contour. Finally, the algorithm was testified on CT image dataset, and the experimental results show that our method can reconstruct the 3D shape with CT image full automatically.
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- 2018
- Full Text
- View/download PDF
5. Predictive Surgical Simulation of Aorta Reconstruction in Cardiac Surgery.
- Author
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Westwood, James D., Westwood, Susan W., Haluck, Randy S., Hoffman, Helene M., Mogel, Greg T., Phillips, Roger, Robb, Richard A., Vosburgh, Kirby G., Li, Hao, Leow, Wee Kheng, Qi, Yingyi, and Chiu, Ing-Sh
- Abstract
This paper proposes a method for performing predictive simulation of complex cardiac surgery. It computes complex surgical results given a small amount of user inputs. In this way, the surgeon can easily explore various surgical options without having to go through all the detailed steps of the surgical procedure. Test results, using aorta reconstruction as an application example, show that the proposed method can generate realistic simulation results given different kinds of user inputs, thus demonstrating the feasibility of the approach. [ABSTRACT FROM AUTHOR]
- Published
- 2009
6. Three-year outcomes with the fully repositionable and retrievable lotusTM transcatheter aortic replacement valve in 120 high-risk surgical patients with severe aortic stenosis: Results from the REPRISE II CE-mark study.
- Author
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Houle V., Walters D., Dumonteil N., Worthley S., Tchetche D., Manoharan G., Blackman D., Rioufol G., Meredith I., Hildick-Smith D., Whitbourn R., Lefevre T., Lange R., Mueller R., Redwood S., Allocco D.J., Houle V., Walters D., Dumonteil N., Worthley S., Tchetche D., Manoharan G., Blackman D., Rioufol G., Meredith I., Hildick-Smith D., Whitbourn R., Lefevre T., Lange R., Mueller R., Redwood S., and Allocco D.J.
- Abstract
BACKGROUND The repositionable and fully retrievable LotusTM Valve (Boston Scientific, Marlborough, MA, USA) was designed to provide precise positioning and minimize paravalvular leak (PVL) in patients with severe aortic stenosis. This analysis will present the first report of 3-year outcomes from the REPRISE II CE-Mark study. METHODS The REPRISE II study is a prospective, single-arm trial that enrolled patients with symptomatic severe calcific aortic stenosis who are at high or extreme surgical risk (based on STS Score or Heart Team assessment) at 14 centers in Europe and Australia. Follow-up is continuing through 5 years. RESULTS Among 120 enrolled patients, the mean age was 84.4+/-5.3 years, 57% (68/120) were female, and mean STS Score was 7.1+/-4.6. All patients were successfully implanted with a Lotus Valve. The primary performance endpoint of 30-day mean aortic valve pressure gradient was 11.5+/-5.2mmHg, and was significantly less than the performance goal of 18mmHg (P<0.001). The primary safety endpoint of 30-day allcause mortality was 4.2%. Two-year clinical follow-up data or death was available for all patients. At 2 years, the Kaplan-Meier rate of allcause mortality was 16.9% (n=20) and disabling stroke was 3.5% (n=4). There were no repeat procedures for valve-related dysfunction, valve migration, embolization, or TAV-in-TAV. Two additional patients received a new permanent pacemaker (PPM) between 1 and 2 years (complete heart block on day 432 and symptomatic bradycardia on day 673) for a total 2-year PPM rate of 34.2% (n=40). By independent core lab adjudication, the 2-year mean aortic valve gradient was 12.3+/-6.2mmHg and mean aortic valve area was 1.7+/-0.5cm2. A total of 90.5% patients had no or trivial PVL at 2 years and 9.5% had mild paravalvular regurgitation; no patient had moderate or severe PVL. CONCLUSION The Lotus Valve has demonstrated negligible PVL, good sustained hemodynamics, and low rates of death and stroke at 2 years. The 3-year results
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- 2017
7. Assessing and reporting complications in the post-intervention aorta: A guide for general radiologists.
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Buckenham T. and Buckenham T.
- Abstract
Aim: To define the role of imaging in the detection of complications in patients who have undergone endoluminal repair of aortic aneurysm disease. Method(s): A review of the literature and to present the experience of a busy tertiary vascular centre with particular emphasis on the following 1. The detection of endoleak 2. The classification of endoleaks 3. Mechanical failure of endografts 4. The mycotic endograft 5. Rupture of aneurysms after endografting Conclusion(s): The Radiologist has an important role in detecting adverse features after endoluminal aortic repair, these features are myriad and often subtle but with a systematic approach are able to be detected on routine CT imaging.
- Published
- 2014
8. Six-month outcomes with a fully repositionable and retrievable transcatheter aortic replacement valve in 120 high-risk surgical patients with severe aortic stenosis: Results from the REPRISE II CE-Mark study.
- Author
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Dawkins K.D., Walters D., Dumonteil N., Worthley S.G., Tchetche D., Manoharan G., Meredith I.T., Blackman D.J., Rioufol G., Hildick-Smith D., Whitbourn R.J., Lefevre T., Lange R., Muller R., Redwood S., Allocco D.J., Dawkins K.D., Walters D., Dumonteil N., Worthley S.G., Tchetche D., Manoharan G., Meredith I.T., Blackman D.J., Rioufol G., Hildick-Smith D., Whitbourn R.J., Lefevre T., Lange R., Muller R., Redwood S., and Allocco D.J.
- Abstract
Aims: Early transcatheter aortic valve implantation (TAVI) devices have established the feasibility of TAVI in patients who are unsuitable for surgical valve replacement, but these devices may face challenges with precise valve positioning, paravalvular leakage, and undesirable rates of stroke, bleeding, or vascular complications. The repositionable and fully retrievable LotusTM Valve was designed to facilitate accurate positioning and minimise paravalvular leakage in patients with severe aortic stenosis who are at high or extreme risk for surgery. The device demonstrated favourable efficacy and safety primary outcomes at 30 days in the REPRISE II CE-Mark trial. This analysis will present the first report of 6-month outcomes in the full cohort of patients in REPRISE II. Methods and Results: The prospective, single-arm, multicentre REPRISE II study was designed to assess the safety and performance of the Lotus Valve System in symptomatic patients aged >=70 years with severe calcific aortic stenosis who are at high or extreme surgical risk. The primary device performance endpoint was the mean aortic valve pressure gradient at 30 days post-procedure, as assessed by an independent core laboratory. The primary safety endpoint was 30-day all-cause mortality. Among 120 enrolled patients, the mean age of 84.4+/-5.3 years, 57% (68/120) were female, mean STS Score was 7.1+/-4.6, mean euroSCORE II was 6.9+/-5.8, and 26% had medically treated diabetes. The mean baseline aortic valve area was 0.7+/-0.2 cm, and the mean aortic valve pressure gradient was 46.4+/-15.0 mmHg. All patients (100%) were successfully implanted with a Lotus valve. A total of 28.6% (34/119) patients had a permanent pacemaker implanted within 30 days post-procedure. The primary device performance endpoint of 30-day mean aortic valve pressure gradient was 11.5+/-5.2 mmHg, which was significantly less than the performance goal of 18 mmHg (P<0.001). All-cause mortality at 30 days was 4.2% and disabling stroke
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- 2014
9. Giant paraanastomotic iliac artery pseudoaneurysm
- Author
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Emrecan, Bilgin and Gökşin, İbrahim
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Male ,erythrocyte transfusion ,flank pain ,vascular surgery ,aortoiliac bypass graft ,computer assisted tomography ,Diagnosis, Differential ,Postoperative Complications ,aneurysm surgery ,differential diagnosis ,case report ,Humans ,postoperative complication ,human ,epidural anesthesia ,iliac artery ,spinal anesthesia ,Aged ,Aged, 80 and over ,surgical approach ,article ,convalescence ,intermittent claudication ,false aneurysm ,hospital discharge ,aorta reconstruction ,hospital admission ,end to end anastomosis ,Iliac Aneurysm ,aneurysm ,contrast enhancement ,pathology ,Vascular Surgical Procedures ,radiography ,Aneurysm, False - Abstract
Not Available
- Published
- 2008
10. Immediate 'total' aortic true lumen expansion in type A and B acute aortic dissection after endovascular aortic endografting and GZSD bare stenting.
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Nixon I., Devine T.J., Mossop P., Oakes J., McLachlan C.S., Nixon I., Devine T.J., Mossop P., Oakes J., and McLachlan C.S.
- Published
- 2012
11. Orthotopic liver transplantation for alagille syndrome
- Author
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Giuliano Torre, Paola Stroppa, Domenico Pinelli, Elena Torri, Marco Spada, Michele Colledan, Alessandro Lucianetti, Daniele Alberti, M. Zambelli, M Guizzetti, A Bertani, M. Giovanelli, V. Corno, G. Maldini, B. Gridelli, Maldini, G, Torri, E, Lucianetti, A, Guizzetti, M, Pinelli, D, Bertani, A, Corno, V, Giovanelli, M, Zambelli, M, Stroppa, P, Alberti, D, Torre, G, Spada, M, Gridelli, B, and Colledan, M
- Subjects
treatment planning ,Cardiac Catheterization ,Time Factors ,hepatic artery ,bile duct obstruction ,graft survival ,Gastroenterology ,Orthotopic Liver Transplantation ,Alagille Syndrome ,Postoperative Complications ,Actuarial Analysis ,Alagille syndrome ,anastomosis dehiscence ,postoperative complication ,surgical drainage ,Child ,conference paper ,intestine necrosi ,hemoperitoneum ,Pediatric ,clinical article ,Incidence (epidemiology) ,abdominal bleeding ,Whole liver ,cholestasi ,lymph node metastasi ,artery thrombosi ,pulmonary artery stenosi ,aorta reconstruction ,ascite ,female ,priority journal ,survival rate ,medicine.medical_specialty ,organ donor ,Orthotopic liver transplantation ,pleura effusion ,surgical infection ,reoperation ,blood vessel occlusion ,percutaneous transluminal angioplasty ,Actuarial survival ,aorta coarctation ,acute graft rejection ,male ,liver graft ,Internal medicine ,death ,heart ventricle septum defect ,liver vein thrombosi ,medicine ,Humans ,cadaver donor ,human ,portal vein thrombosi ,postoperative thrombosi ,treatment failure ,Retrospective Studies ,Transplantation ,business.industry ,recipient ,disease association ,medicine.disease ,infant ,Survival Analysis ,thorax surgery ,Surgery ,Liver Transplantation ,Hepatic artery thrombosis ,adolescent ,Split liver transplantation ,bile duct fistula ,incidence ,surgeon ,stent ,business ,Cadaveric spasm ,radiologist ,liver graft rejection ,Follow-Up Studies - Abstract
Alagille syndrome (AS) is a dominantly inherited, multisystem disorder involving the liver, heart, eyes, face, and skeleton. From October 1997 through July 2004, 260 pediatric orthotopic liver transplantations (OLTx) were performed in 231 patients. This report describes 21 patients of median age 1.95 years (range, 0.7-16.7) who had alagille syndrome. We present the technical features of the OLTx, incidence and type of complications, medical conditions related to the syndrome, need for retransplantation, as well as patient and graft survival rates. A split liver technique was used in 16 patients (76%) who received a left lateral segment (LLS) graft whereas 7 patients (33%) received a whole liver. Only cadaveric donors were used. The major surgical complications requiring reintervention in 11 patients (52%) included biliary problems (19%) and vascular complications (17%). One case of hepatic artery thrombosis required retransplantation. Three recipients (14%) died. All other patients are alive with an actuarial survival rate of 90% at 1 year and 80% at 5 years. The actuarial graft survival rate is 85% at 1 year and 75% at 5 years. Patients with AS, despite the associated cardiovascular anomalies, can be treated successfully by a combined approach between cardiologist, radiologist, cardiothoracic, and liver transplant surgeons. With careful planning and operative management, the results are comparable with those obtained with other more common cholestatic diseases.
- Published
- 2005
12. Orthotopic liver transplantation for Alagille syndrome
- Author
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Maldini, G, Torri, E, Lucianetti, A, Guizzetti, M, Pinelli, D, Bertani, A, Corno, V, Giovanelli, M, Zambelli, M, Stroppa, P, Alberti, D, Torre, G, Spada, M, Gridelli, B, Colledan, M, Maldini G, Torri E, Lucianetti A, Guizzetti M, Pinelli D, Bertani A, Corno V, Giovanelli M, Zambelli M, Stroppa P, Alberti D, Torre G, Spada M, Gridelli B, Colledan M, Maldini, G, Torri, E, Lucianetti, A, Guizzetti, M, Pinelli, D, Bertani, A, Corno, V, Giovanelli, M, Zambelli, M, Stroppa, P, Alberti, D, Torre, G, Spada, M, Gridelli, B, Colledan, M, Maldini G, Torri E, Lucianetti A, Guizzetti M, Pinelli D, Bertani A, Corno V, Giovanelli M, Zambelli M, Stroppa P, Alberti D, Torre G, Spada M, Gridelli B, and Colledan M
- Abstract
Alagille syndrome (AS) is a dominantly inherited, multisystem disorder involving the liver, heart, eyes, face, and skeleton. From October 1997 through July 2004, 260 pediatric orthotopic liver transplantations (OLTx) were performed in 231 patients. This report describes 21 patients of median age 1.95 years (range, 0.7-16.7) who had alagille syndrome. We present the technical features of the OLTx, incidence and type of complications, medical conditions related to the syndrome, need for retransplantation, as well as patient and graft survival rates. A split liver technique was used in 16 patients (76%) who received a left lateral segment (LLS) graft whereas 7 patients (33%) received a whole liver. Only cadaveric donors were used. The major surgical complications requiring reintervention in 11 patients (52%) included biliary problems (19%) and vascular complications (17%). One case of hepatic artery thrombosis required retransplantation. Three recipients (14%) died. All other patients are alive with an actuarial survival rate of 90% at 1 year and 80% at 5 years. The actuarial graft survival rate is 85% at 1 year and 75% at 5 years. Patients with AS, despite the associated cardiovascular anomalies, can be treated successfully by a combined approach between cardiologist, radiologist, cardiothoracic, and liver transplant surgeons. With careful planning and operative management, the results are comparable with those obtained with other more common cholestatic diseases.
- Published
- 2005
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