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Results 601 - 650 of 1314
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de Geus-Oei Lioe-Fee - - 2006
The use of dynamic (18)F-FDG PET to determine changes in tumor metabolism requires tumor and plasma time-activity curves. Because arterial sampling is invasive and laborious, our aim was to validate noninvasive image-derived input functions (IDIFs). METHODS: We obtained 136 dynamic (18)F-FDG PET scans of 76 oncologic patients. IDIFs were determined ...
Mestres Gaspar - - 2006
We present the case of a 40-year-old man who underwent aortic endoprosthesis implantation for a traumatic lesion of the thoracic aorta (Gore TAG, 26 x 100 mm, after the instructions for use for a thoracic aorta of 22-24 mm). At 6 months, he came to the emergency room for a ...
Fukui Sumio - - 2006
This report describes the treatment of a descending thoracic aortic aneurysm with an endograft introduced through the infrarenal aorta by using the laparoscopic technique. The indication for infrarenal aorta access was the existence of heavy calcifications and stenosis of the both iliac arteries. We report what we think to be ...
Oitate Masataka - - 2006
Rofecoxib is a cyclooxygenase-2 (COX-2) inhibitor that has been withdrawn from the market because of an increased risk of cardiovascular (CV) events. With a special focus on the arteries, the distribution profiles of radioactivity in rats orally administered [14C]rofecoxib were investigated in comparison with two other COX-2 inhibitors, [14C]celecoxib and ...
Guha Santanu - - 2006
A young man of 16 years presented with sudden onset of right sided headache and vomiting for one day. No neurological or visual disturbances were noticed. On examination his BP was 240/120 mmHg. All upper extremity pulses were felt but from the femoral artery down to arteria dorsalis pedis these ...
Kuo James - - 2006
Surgery on the descending thoracic aorta is often performed with hypothermic cardiopulmonary bypass established via the femoral vessels. This, however, produces retrograde flow, which may potentially dislodge atheromatous debris from a diseased descending aorta or results in malperfusion due to cannulation of the false lumen in patients with descending aortic ...
Cademartiri Filippo - - 2006
OBJECTIVE: The objective of this study was to compare intracoronary attenuation on 16-row multislice computed tomography (16-MSCT) coronary angiography using 2 contrast materials (CM) with high iodine concentration. MATERIAL AND METHODS: Forty consecutive patients (29 male, 11 female; mean age, 61+/-11 years) with suspected coronary artery disease were randomized to ...
Bondy Carolyn A - - 2006
BACKGROUND: In recent years many girls with Turner syndrome (TS) have been treated with supraphysiological doses of GH to increase adult height. In addition to promoting statural growth, GH may have direct effects on the cardiovascular system. OBJECTIVE: We sought to determine whether GH treatment affects aortic diameter in girls ...
Schreiber Christian - - 2006
BACKGROUND: Despite primary success, 9% of patients develop aortic (pseudo)aneurysms after surgical repair of aortic coarctation at or near the site of repair late after operation. CASE STUDY: A chest X-ray in a 32-year-old asymptomatic man, 31 years after coarctation repair, depicted a ballooning of the distal aortic arch. A ...
Igari Tsuguo - - 2006
To estimate the length of the aorta from the subclavian artery to the renal artery in Japanese adults, its length was measured on computed tomographic (CT) images. Data from a total of 110 patients without aortic or aortic valvular diseases (54 men, 56 women) who had undergone 7-mm-slice-interval CT examination ...
Farhat Fadi - - 2006
OBJECTIVES: To assess histological traumatic effects of aortic clamps used in video-assisted surgery, an experimental study was undertaken in a pig model, comparing the Portaclamp, Endoclamp, and a metallic clamp. MATERIAL AND METHODS: In 3 groups of 5 pigs each, the descending aorta was exposed through a posterolateral left thoracotomy. ...
Khoynezhad Ali - - 2006
The Seldinger technique is a method of femoral cannulation that has been used to establish cardiopulmonary bypass. Reports of cannulation of the ascending aorta for antegrade perfusion using the Seldinger method are anecdotal. To the best of our knowledge, the approach described herein for direct cannulation of the ascending aorta ...
Korkut A K - - 2006
Balloon dilation of native aortic coarctation has been employed safely and effectively in selected patients and with good results during follow-up. However, pseudo-aneurysm formation at the site of dilatation occurs in about 2%-8% of patients. Although the majority of these aneurysms remain stable, they occasionally may increase in size during ...
Ingegnoli F - - 2006
It has been widely accepted that the antiphospholipid syndrome (APS) is an autoimmune hypercoagulability syndrome in which a variety of venous and arterial thrombotic events may occur. Peripheral obliterating arterial disease characterized by aortoiliac steno-occlusion occurring in young women, is reported in the literature under the name of Small Aorta ...
Szpinda MichaƂ - - 2006
In prenatal and pediatric cardiovascular surgery knowledge of luminal diameters of the aortic and great pulmonary pathways is essential. The internal diameters of the aortic and great pulmonary pathways in 131 human foetuses (65 male, 66 female) were studied by means of anatomical, digital and statistical methods. During foetal development ...
Falk Volkmar V Department of Cardiac Surgery, Heartcenter, University of Leipzig, - - 2006
Total endoscopic coronary artery bypass grafting is a robotic assisted procedure to graft the left internal thoracic artery to the left anterior descending coronary artery without opening the chest. Through four 1-cm port incisions the procedure can be performed on the beating heart using a telemanipulation system and an endoscopic ...
Knott-Craig Christopher J - - 2006
A simplified means of arterial cannulation for cardiopulmonary bypass in small neonates and those infants with diminutive aortas, or requiring reconstruction of the ascending aorta, is presented. It involves suturing a long 3.5 mm graft to the innominate artery and inserting the arterial cannula into the end of the graft. ...
Celik Turgay - - 2006
Coarctation of the aorta (CA) accounts for 5% of all congenital heart disease. One of the most feared complications of coarctation of the aorta is the development of saccular aortic aneurysm. In this paper, we described a 20-year-old man with coarctation of the aorta in association with a large calcified ...
Malyar Nasser M - - 2005
The presence of thrombi in the atherosclerotic and/or aneurysmatic aorta with peripheral arterial embolism is a common scenario. Thrombus formation in a morphologically normal aorta, however, is a rare event. A 50 years old woman was admitted to the mergency department for pain, coldness, and anesthesia in the the left ...
Che Guowei - - 2006
OBJECTIVES: To improve the early diagnosis and avoid preoperative misdiagnosis, we discuss some of the diagnostic problems related to thoracic saccular aneurysm rupture into the lung. METHODS: A case report is presented. We report on a patient with rupture of aorta arch aneurysm into the lung with formation of pseudoaneurysm ...
Juez Marina - - 2006
A patient with a cervical aorta and an aneurysm of a right sided aortic arch was treated without cardiopulmonary bypass by ascending to distal descending aorta bypass grafting, excision of the aneurysm and its transverse connection to the descending aorta and of the cervical segment of the aorta, and connection ...
Dodge-Khatami Ali - - 2005
BACKGROUND: In neonates and young infants (less than 3 months), coarctation may be missed or underestimated by echocardiography, especially with a patent ductus arteriosus or severe concurrent illness. A reliable noninvasive screening tool for coarctation would be useful for these patients. METHODS: From 1997 to 2003, echocardiographic evaluation was performed ...
Maskari S N Al - - 2005
In neonates with coarctation of the aorta, left ventricular function may be impaired due to an increased afterload and an associated endocardial fibroelastosis. Repair of the coarctation usually results in improvement in left ventricular function over the postoperative weeks. We report a patient in whom, despite successful repair of coarctation, ...
Heper Gulumser - - 2005
We present clinical follow-up of a 20-year-old male with an aortic aneurysm secondary to aortic coarctation. The diagnosis of aortic aneurysm secondary to aortic coarctation was made in 1997. The patient did not agree to undergo any invasive or therapeutic procedures at that time. He presented to an emergency unit ...
Blasco Ana A Unidad de Hemodinámica, Servicio de Cardiología, Hospital Universitario Puertade Hierro, Madrid, - - 2005
Use of the radial artery for cardiac catheterization has significantly reduced the incidence and severity of complications at the access site. Nevertheless, occasionally unusual complications or atypical responses to treatment are observed. We describe two cases: a radial artery pseudoaneurysm that was unresponsive to compression treatment and a foreign-body inflammatory ...
Sinha Indranil - - 2005
OBJECTIVES: While extrinsic mechanisms of apoptosis in abdominal aortic aneurysms (AAAs) are recognized, this project hypothesizes that an intrinsic, mitochondrial-dependent, mechanism of apoptosis also contributes to experimental AAA formation. METHODS: Rat aortas were perfused with either saline or elastase (N = 5 per group) and harvested 7 days postperfusion. The ...
Fejzic Zina - - 2005
We report a fatal dissection of the descending aorta as a complication after a two-staged implantation of a stent to relieve aortic coarctation in a young female with Turner's syndrome. Implantation of the stent, with dilation up to 70 percent, and half a year later re-dilation to 100 percent, was ...
Agarwal Vijay - - 2005
A boy presented with Alagille syndrome and recurrent coarctation of the descending thoracic aorta. Initially, he underwent resection of the coarctation segment and end-to-end anastomosis. Following recurrent coarctation an extra-anatomic bypass procedure (a conduit was interposed between the ascending and descending thoracic aorta) was performed. He recently presented with stenosis ...
Koullias George - - 2005
OBJECTIVE: The human ascending aorta becomes markedly prone to rupture and dissection at a diameter of 6 cm. The mechanical substrate for this malignant behavior is unknown. This investigation applied engineering analysis to human ascending aortic aneurysms and compared their structural characteristics with those of normal aortas. METHODS: We measured ...
Bodhey Narendra Kuber - - 2005
Six patients with luetic aneurysm of the ascending aorta eroding the sternum are presented. The erosion was an early and principal presentation and the site of erosion and location and morphology of aneurysm were identical in all six patients. The erosion mainly affected the right half of the manubrium and ...
Isobe Naoyuki - - 2005
An 11-year-old boy developed occlusion of the left internal carotid artery (ICA) following surgical correction of atypical coarctation of the aorta. The patient was admitted to our hospital after presenting with severe hypertension secondary to abdominal aortic hypoplasia and renal artery stenosis. Reconstruction of the abdominal aorta with bypass grafting ...
Pfeiffer Brent J - - 2005
Collagen and elastin are the primary determinants of vascular integrity, with elastin hypothesized to be the major contributor to aortic compliance and type I collagen the major contributor to aortic strength and stiffness. Type I collagen is normally heterotrimeric composed of two alpha1(I) and one alpha2(I) collagen chains, alpha1(I)(2)alpha2(I). Recent ...
Hornero Fernando - - 2005
Virtual endoscopy of the aorta is a new three-dimensional reconstruction method from multislice computed tomography or magnetic resonance that offers a virtual navigation through the aorta, and the possibility of having a new preoperative endoluminal vision. We present a case of subacute aortic dissection with a preoperative virtual endoscopy of ...
Honjo Osami - - 2005
Herein we describe a case of atypical coarctation of the thoraco-abdominal aorta associated with mucopolysaccharidosis VII in a 4-year-old girl. Aortography showed diffuse narrowing of the descending aorta. An extra-anatomic bypass was constructed using an 8-mm Dacron graft (Meadox Medicals Inc, Oakland, NJ) between the proximal and distal portion of ...
Javerliat Isabelle - - 2005
An extra-anatomic bypass initiating from the ascending aorta, namely the ventral aorta, is a possible alternative for lower limb revascularization. However, acceptance of this technique is limited by the need of a median sternotomy and clamping of the ascending aorta. We report a new technique for the ventral aorta using ...
Terada Hitoshi - - 2005
We report a successful aortic valve replacement within an extensively calcified (porcelain) aorta, involving the left coronary artery ostium. Clamping such an aorta can result in embolization, dissection, and mural laceration. A 72-year-old female presented with a severely calcified and stenotic aortic valve with a peak pressure gradient of 101 ...
Duggal Bhanu - - 2005
Three patients presented to us with upper extremity hypertension and aortic coarctation. Aortic angiograms and spiral computerized tomography delineated the anatomy at the site of coarctation and the associated small aneurysmal dilation. They were taken up for percutaneous stenting of the coarctation segment with cheathum-platinum covered stents. Post-deployment, there was ...
Hoffman Piotr - - 2005
This report describes detachment of the right coronary artery, an extremely infrequent late complication of Bentall's procedure combined with Cabrol's maneuver for aneurysm of the ascending aorta. This resulted in subsequent formation of the progressive aneurysm of the ascending aorta and fistula entering the main pulmonary artery. Successful surgical treatment ...
Peng Siwei - - 2005
Amyloid deposition occurs commonly in the aging aortic media. We recently found that a 50 amino acid amyloid fibril protein, which we called medin, forms the fibrils of this amyloid form. Medin is an internal fragment of the 364 long precursor lactadherin, which is expressed by several kinds of cells ...
Geroulakos G - - 2005
There is no consensus of opinion on the best surgical approach for the management of chronic visceral ischaemia. The antegrade revascularisation has several advantages. It provides an excellent exposure of the supraceliac aorta, the option of originating the bypass from several areas of the distal thoracic and supraceliac aorta that ...
Jatene Marcelo Biscegli - - 2005
A 28-month-old boy, weighing 11 kg, with severe dilated cardiomyopathy, was transplanted on December 1995. Hypertension and supraventricular tachycardia were detected in the immediate post-operative period, with favorable outcome. After 5 months of clinically asymptomatic follow-up, a dilation in the ascending aorta was observed on routine echocardiogram. Nuclear magnetic resonance ...
Bergman Per - - 2005
Epiaortic ultrasonography has high sensitivity for the detection of atherosclerosis. In several studies, the technique has identified atherosclerosis of the ascending aorta as the major risk factor for stroke after cardiac surgery. The level of risk depends on the presence, location and extent of disease when the ascending aorta is ...
Castillo E Halley - - 2005
This study measured the dimensions of the great arteries of normal human fetal hearts at an early fetal stage (between 13-20 weeks post-fertilization) in 103 fetuses obtained by necropsy. Different segments of the aorta and the pulmonary artery were dissected and their external diameters measured under stereoscopic magnification. All segments ...
McNulty Marie - - 2005
BACKGROUND: Aging is a major risk factor for the development of arterial stiffness and vascular disease, and it is related to the upregulation of matrix metalloproteinase-2 (MMP-2) in the aorta of rats and nonhuman primates. This study aimed to determine whether MMP activity in the human vasculature changes with aging. ...
Rhodes Andrew B - - 2005
A 15-year-old male complained of easy fatigability, leg weakness, and pain on exertion with episodes of syncope while playing baseball. His past medical history was significant for aortic coarctation associated with a congenital bovine hypoplastic aortic arch. A recent arteriogram revealed innominate and left common carotid artery stenosis as well ...
Konje Justin C - - 2005
OBJECTIVE: To produce normograms of Doppler indices of major fetal arteries and their ratios relative to the ascending aorta in a cohort of appropriately grown for gestational age fetuses. METHODS: Prospective longitudinal study of 70 women with appropriately grown for gestational age fetuses between 24 and 38 weeks' gestation attending ...
Schertler Thomas - - 2005
We present the case of a 61-year-old man with a history of dyspnea and disparity in blood pressure of the arms and legs due to a stenotic biscupid aortic valve and a hemodynamically relevant restenosis of a resected coarctation. The coarctation was treated with an extra-anatomic transdiaphragmal aorto-aortic bypass graft. ...
Yurdakul Ahmet S - - 2005
A 43-year-old man presented with a 12-month history of recurrent haemoptysis. Postero-anterior chest X-ray of a patient with a history of a penetrating thoracic trauma 8 years previously showed a long wedge-shaped opacity just above the left hemidiaphragm, representing the 'tip of the knife' appearance, and penetrating from the lateral ...
Brili Stella - - 2005
It is well documented that in patients with coarctation of the aorta life expectancy is not normal even after successful coarctation repair (SCR), primarily due to cardiovascular events. We examined endothelial function in the forearm circulation, the mechanical properties and intima/media thickness in carotid and femoral arteries and the inflammatory ...
Bisleri Gianluigi - - 2005
PURPOSE: Surgical treatment of the thoracic aorta may become challenging when a rapid switch from left heart bypass (LHB) to cardiopulmonary bypass (CPB) is required. DESCRIPTION: We designed a BICIRCUIT system using a centrifugal pump, a heparinized CPB circuit with a hollow fiber oxygenator, two 3/8 x 3/8 x 3/8 ...
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