Search results for "Ascending"
showing 10 items of 109 documents
Modified Danielson Technique for Prosthetic Aortic Valve Endocarditis and Aortoventricular Discontinuity
2020
Endocarditis is a devastating complication of prosthetic aortic valve replacement. The infective process can destroy aortic annulus tissue, making conventional surgical valve replacement difficult or impossible and causing aortoventricular discontinuity. Several treatment techniques have been proposed. One of these, the Danielson technique, involves translocating the aortic valve to the native ascending aorta, débriding the abscess cavity, closing the coronary ostia, and bypassing the coronary arteries with a Y anastomosis between 2 vein grafts. We describe our use of a modified Danielson technique in a 68-year-old man with advanced prosthetic valve endocarditis that was associated with aor…
Aortic Function's Adaptation in Response to Exercise-Induced Stress Assessing by 1.5T MRI : A Pilot Study in Healthy Volunteers
2015
AIM:Evaluation of the aortic "elastic reserve" might be a relevant marker to assess the risk of aortic event. Our aim was to compare regional aortic elasticity at rest and during supine bicycle exercise at 1.5 T MRI in healthy individuals. METHODS:Fifteen volunteers (8 men), with a mean age of 29 (23-41) years, completed the entire protocol. Images were acquired immediately following maximal exercise. Retrospective cine sequences were acquired to assess compliance, distensibility, maximum rates of systolic distension and diastolic recoil at four different locations: ascending aorta, proximal descending aorta, distal descending aorta and aorta above the coeliac trunk level. Segmental aortic …
ECG-GATED MULTIDETECTOR COMPUTED TOMOGRAPHY FOR THE ASSESSMENT OF THE POSTOPERATIVE ASCENDING AORTA
2009
This study was undertaken to define the role of electrocardiographically (ECG)-gated multidetector computed tomography (MDCT) in the assessment of the postoperative ascending aorta. From November 2006 to June 2007, 21 patients, [11 men, ten women; age +/- standard deviation (SD): 62.7 +/- 10.8 years] with a history of ascending aorta replacement underwent ECG-gated MDCT and were prospectively included in our study. Ascending aorta replacement had been performed with different surgical techniques: Bentall-De Bono (four patients, 19%), Tirone-David (five patients, 23%), and modified Tirone-David with creation of aortic neosinuses (12 patients, 57%). Two patients were excluded from MDCT evalua…
Fecal Blood Loss in Patients With Colonic Polyps: A Comparison of Measurements With 51Chromium-Labeled Erythrocytes and With the Haemoccult Test
1982
Abstract The quantitative determinations of fecal daily blood loss after intravenous administration of 51Cr-labeled erythrocytes in 44 patients with colonic polyps and in 11 controls were compared with the results of the daily performed Haemoccult test without dietary restrictions. A total of 642 stool specimens was analyzed for 51Cr loss and the Haemoccult test. The mean fecal daily blood loss in the 34 patients with adenomatous polyps of the descending colon and rectosigmoid was 1.36 ± 0.14 ml/day (mean ± SEM), in the 10 patients with polyps of the ascending and transverse colon it was 1.28 ± 0.31 ml/day, and in the 11 controls 0.62 ± 0.07 ml/day. There was no positive Haemoccult test in …
Complex long-segment intestinal dysganglionosis.
2000
A case is reported with aganglionosis of the rectum, sigma, and descending colon; dysganglionosis with heterotopic ganglionic cells in the muscularis propria of the hypoganglionic transverse colon; and extreme hypoganglionosis (without detection of ganglionic cells) of the ascending colon and distal ileum. The ileum showed a transition zone with hypoganglionosis and intestinal neuronal dysplasia (IND) type B. As to the etiology of such complex intestinal innervation defects, pre- and perinatal perfusion deficits must be considered because their localization seems to be linked to the vascular anatomy of the colon. Early diagnosis may be difficult, causing a delay in operative treatment and m…
Role of cardiac computed tomography in the evaluation of coronary artery stenosis in patients with ascending aorta aneurysm detected at transthoracic…
2016
OBJECTIVE The aim of our study was to evaluate the diagnostic performance of cardiac computed tomography (CCT) in the evaluation of coronary artery stenosis in patients with ascending aorta aneurysm detected at transthoracic echocardiography. METHODS We conducted a retrospective analysis of patients with an aneurysm 45 mm or greater at transthoracic echocardiography who underwent CCT from 2012 to 2014 in our hospital. We calculated the sensitivity, specificity, and positive and negative predictive values of CCT for the assessment of coronary artery stenosis (<50% or ≥50% stenosis) in patients who underwent conventional coronary angiography. RESULTS We included 104 patients (73 men, aged 64 …
Aortic intramural hemorrhage visualized by transesophageal echocardiography: Findings and prognostic implication
1994
Abstract Objectives. This study describes the transesophageal echocardiographic and follow-up findings in patients with aortic intramural hemorrhage. Background. Localized aortic intramural hemorrhage resulting in layered thickening of the aortic wall seems to represent a variant of acute aortic dissection without communication or a typical moving intimal flap. In autopsy studies this variant, attributed to a rupture of the van vasorum, has been described in 5% to 10% of patients with dissection. Methods. In a prospective transesophageal echocardiographic study in patients with aortic dissection performed between 1986 and 1991, the diagnosis of intramural hemorrhage was established in 15 of…
Immunoglobulin G4-Related Aortitis and Severe Aortic Valve Stenosis Treated With Transcatheter Aortic Valve Replacement and Immunosuppression.
2021
Abstract IgG4-related disease is an immune-mediated fibro-inflammatory disorder with multisystemic involvement. Aortitis and peri-aortitis are the most common cardiovascular manifestations of the disease. We present the case of a 65-year-old man with symptomatic severe aortic stenosis and concomitant IgG4 aortitis. The diagnosis was confirmed by IgG4 serum levels, positive positron emission computed tomography (PET-CT) scans, and pathology from mediastinal dissection. Surgical aortic valve replacement (SAVR) was unfeasible owing to extensive mediastinal fibrosis, and transcatheter aortic valve replacement (TAVR) was successfully performed. As ascending aorta access for SAVR in IgG4 aortitis…