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Results 351 - 400 of 1569
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Satoda Masahiko - - 2007
BACKGROUND: A 34-year-old postpartum woman presented at hospital with chest pain. She had experienced an uneventful delivery of a healthy infant and had no known coronary risk factors. Electrocardiography demonstrated an acute myocardial infarction, which resolved on intravenous glyceryl trinitrate infusion. Coronary angiography revealed diffuse narrowing of the left anterior ...
Mehta P K - - 2008
Patients with systemic lupus erythematosus (SLE) may present with acute coronary syndrome (ACS) due to coronary vasculitis or premature atherosclerosis. There is a paucity of data on invasive management strategies for young adults who present with an ACS secondary to active vasculitis. This article describes the case of a teenager ...
Kaichi S - - 2008
We wanted to clarify the relationships between the degree of acute coronary artery dilation caused by Kawasaki disease and subsequent late calcification. Electron beam computed tomography (EBCT) was used to study 79 patients who had previously undergone selective coronary angiograms less than 100 days after the onset of Kawasaki disease. ...
Ozdemir V - - 2008
A total of 10 adult, healthy, male chinchillas (Chinchilla lanigera) were used to investigate the origin, course, and termination of the coronary arteries. Coloured latex was injected into the carotid arteries following conventional anatomical applications. In all the chinchillas examined, the left coronary artery was the single coronary artery. The ...
Apostolakis Efstratios - - 2007
We describe a safe, easy, and fast technique of exposing the left anterior descending artery (LAD), when this is embedded under the myocardium or excessive epicardial fat tissue, during coronary artery bypass grafting (CABG) or off-pump coronary artery bypass (OPCAB). The vessel is opened as distal as possible, then a ...
Paul Louis C - - 2007
Slow flow of the contrast in normal coronary arteries is a relatively common finding in patients undergoing routine coronary angiography. The severest form of this phenomenon is known as no flow or TIMI and is uncommon, with life-threatening consequences. We describe a case of slow flow in the left anterior ...
Jacobs Stephan - - 2007
PURPOSE: Construction of an endoscopic catheter-guided, bonded anastomosis to facilitate total endoscopic coronary artery bypass. DESCRIPTION: Total endoscopic coronary artery bypass of the left internal thoracic artery to the left anterior descending coronary artery was performed on the beating heart in six pigs using a telemanipulation system. An angioplasty catheter ...
Nagamine Hiroshi - - 2007
OBJECTIVE: The ventricular myocardium is thought to exist as a single continuous muscle band that extends from the pulmonary artery to the aorta, wrapped into a double helical coil Torrent-Guasp's theory of the ventricular myocardial band (VMB). The purpose of this study was to examine the coronary blood supply to ...
Nezić Dusko G - - 2007
Cardiac surgeons are treating an increasing number of patients with diffuse coronary artery disease that requires the use of alternative surgical techniques. We present a patient who had a technically unsatisfactory endarterectomy of the left anterior descending coronary artery. We were left with only 3 segments of properly endarterectomized coronary ...
Sadamatsu Kenji - - 2007
We report a case of a patient with exertional angina whose coronary angiography showed a severe stenosis at the ostium of the left coronary anterior descending artery. However, intravascular ultrasound imaging demonstrated only mild plaque burden and negative remodeling, with a 0.66 ratio of external elastic membrane area of the ...
Lee Sak - - 2007
This report describes the case of a 45-year-old Korean female who had suffered from Behçet's syndrome for two years with a huge, unruptured aneurysm originating from the left coronary sinus. The aneurysm had caused myocardial and aortic insufficiency by compressing the proximal left anterior descending coronary artery. The orifice of ...
Miyamoto Takashi - - 2008
A 2-year-old boy was referred to our institution for treatment of coronary artery obstruction after an arterial switch operation (ASO). We performed a pediatric coronary artery bypass graft (CABG) with skeletonized left internal thoracic artery (LITA). The patient was 88 cm tall and weighed 11 kg. The left anterior descending ...
Ozcan Ozlem - - 2007
Left main coronary artery (LMCA) aneurysm is a rare coronary abnormality defined as localized coronary artery dilatations>1.5 to 2 times the diameter of the adjacent segments. The incidence of coronary artery aneurysm varies between 0.15% and 4.9%. It can be recognized by coronary angiography or multidetector computed tomography. Here, we ...
Nerantzis Christos E - - 2007
The present report highlights on exceptional angiographic and histologic features of coronary artery fibromuscular dysplasia in a young man complaining of chest discomfort during strenuous exercise. The striking features of fibromuscular dysplasia were the relative proximal localization of the lesion in left anterior descending coronary artery, the extensive length of ...
Ko S M - - 2007
Myocardial bridging is caused by muscles overlying the intramyocardial course of an epicardial coronary artery. It is a congenital anomaly characterized by systolic compression of the tunnelled segment, commonly affecting the mid-portion of the left anterior descending coronary artery. The authors report two cases of myocardial bridging using electrocardiogram-gated multidetector-row ...
Itoi Toshiyuki - - 2007
Coronary artery multiple fistulae of the left ventricular chamber are extremely rare congenital malformations. We report on 13-year-old monozygotic twin brothers who have identical abnormalities of coronary flow reserve as well as the same morphological findings of multiple coronary fistulae of the 3 major coronary arteries to the left ventricular ...
Park Sang Min - - 2008
A 28-year-old man without medical history of cardiovascular disease came to the clinic to have the cause of his ECG abnormalities and chest discomfort evaluated. Echocardiogram showed regional wall motion abnormality of the anteroseptum and inferoseptum from the upper mid-left ventricle to apex with aneurysm and anterior wall from the ...
Durán A C - - 2007
This study describes a rare congenital coronary artery anomaly in the Syrian hamster; namely, the separate origin of the obtuse marginal and left circumflex arteries which are the main components of the left coronary artery. The hearts of nine affected animals were examined by means of a corrosion-cast technique and ...
Mayr Viktoria D - - 2007
We have shown previously that arginine vasopressin (AVP) given during sinus rhythm increases mean arterial blood pressure (MAP) and left anterior descending (LAD) coronary artery cross sectional area. AVP was assumed to result in vasodilatation via activation of the endothelial nitric oxide system. The purpose of the present study was ...
Lubarsky Lev - - 2007
The purpose of this study was to use the unique characteristics of multidetector computed tomographic coronary angiography to evaluate the prevalence and characteristics of myocardial bridging (MB) in a large series of patients and to assess the relation between atherosclerosis and MB. Three hundred consecutive coronary angiograms obtained by 64-slice ...
Montisci Massimo - - 2008
The case of a 31-year-old man who died suddenly, with a history of drug abuse and no risk factors for coronary artery disease, is herein reported. Postmortem examination disclosed critical stenosis due to a fibrocellular atherosclerotic plaque complicated by occlusive thrombosis at the level of the left anterior descending coronary ...
Rajagopal Keshava - - 2007
A 73-year-old woman presented with a large saccular aneurysm involving the distal aortic arch. Preoperative aortography and cardiac catheterization revealed left main coronary artery and left common carotid artery stenoses. Concomitant coronary artery bypass grafting to the left anterior descending and first diagonal arteries, ascending aorta-to-left common carotid artery bypass ...
Favilli Silvia - - 2007
Congenital coronary artery anomalies are a rare cause of major cardiovascular events in adolescents who practise sports activities. Therefore, symptoms suggestive of cardiac ischaemia should always be carefully considered and subjects should undergo a complete cardiovascular assessment. We describe the case of a young non-competitive athlete, referring episodes of exertional ...
Ojeda Willibaldo - - 2007
Aneurysms of the left main coronary artery are a rare entity, being found in 0.1% of angiograms. This case involves a middle aged man with left main coronary aneurysm, complicated with severe obstruction at the ostium of the left anterior descending artery, the ostium of a ramus, and the ostium ...
Hsu Po-Chao - - 2008
Buerger's disease is a small and medium vessel vasculitis that predominantly involves the distal extremities. Coronary involvement is rarely reported. We reported a 32 year-old man with Buerger's disease (thromboangiitis obliterans) suffering from acute anterior chest pain and V(1-6) ST-segment elevation. Frequent episodes of accelerated idioventricular rhythm (AIVR) were found ...
van Ooijen Peter M A - - 2007
Coronary fly-through or virtual angioscopy (VA) has been studied ever since its invention in 2000. However, application was limited because it requires an optimal computed tomography (CT) scan and time-consuming post-processing. Recent advances in post-processing software facilitate easy construction of VA, but until now image quality was insufficient in most ...
Brofferio Alessandra - - 2007
Of 3,856 coronary angiographic studies performed by a single operator from December 2000 to March 2006, 24 (0.6%) had an aberrant origin of the obtuse marginal branch from the left anterior descending coronary artery (n = 20, 84%) or its diagonal branch (n = 2, 8%) or from the ramus ...
Barutcu Irfan - - 2007
Myocardial bridging (MB) is a congenital anomaly of coronary arteries and its functional significance remains controversial. Using the TIMI frame count (TFC) method, the authors investigated whether the coronary blood flow velocity is decreased in MB. The study included 18 patients (group 1; 12 men and 6 women; mean age ...
Duygu Hamza - - 2007
BACKGROUND: In this study, we investigated the sensitivities of dobutamine stress echocardiography (DSE) and integrated backscatter (IBS) in detecting ischemia in patients with symptomatic myocardial bridging (MB). METHODS: Fourteen patients given the diagnosis of MB in the left anterior descending coronary artery as shown by coronary angiography were enrolled. All ...
Katircibaşi M Tuna - - 2007
OBJECTIVE: Early mortality after coronary artery bypass grafting is generally higher in women than in men. This study analyzes the effect of female gender on early mortality of coronary artery bypass grafting particularly for left main coronary artery disease. METHODS: Study population consisted of 144 consecutive patients (33 women, 111 ...
Ankeney Jay L - - 2007
OBJECTIVE: We sought to develop a baseline for long-term survival of patients after off-pump bypass of the left anterior descending coronary artery with the heart beating. METHODS: We reviewed results for 241 consecutive patients with significant obstruction of the left anterior descending coronary artery who underwent surgery between November 1969 ...
Christiaens Luc - - 2008
BACKGROUND: Multidetector row computed tomography (MDCT) is a developing technique mainly used to evaluate the coronary arteries, but less attention has been paid to the coronary venous system. However, with the dramatic technological advancement of percutaneous therapies for heart failure or mitral insufficiency, a better knowledge about the anatomy of ...
Habibzadeh Mohammad Reza - - 2007
The prediction of significant left main or diffuse three-vessel coronary artery disease is crucial in patients presenting with an acute coronary syndrome. ST-segment elevation in aVR has been reported to be associated with left main coronary artery obstruction or severe diffuse coronary artery disease in acute coronary syndrome. Herein we ...
Resetar Michaela Elisabeth - - 2007
OBJECTIVE: Some patients with significant arteriosclerosis of the heart are not amenable to revascularization of a coronary artery because they have a combination of microangiopathy and significant macroangiopathy. We investigated the benefit of arterialization of a cardiac vein under these circumstances in an acute animal model. METHODS: In the hearts ...
Pevni Dmitry - - 2007
OBJECTIVE: Composite arterial grafting causes splitting of internal thoracic artery flow to various myocardial regions. The amount of flow supplying each region depends on the severity of coronary stenosis. Competitive flow in the native coronary artery can cause occlusion or severe narrowing of the internal thoracic artery supplying this coronary ...
N Rahman - - 2007
Significant narrowing of the left main coronary artery puts the patient at high risk, since occlusion of this vessel, if unprotected by collateral flow or a patent bypass graft to either the left anterior descending or circumflex artery, compromises flow to approximately 75% of the left ventricle. Percutaneous coronary intervention ...
Aggeli Constadina - - 2007
BACKGROUND: The use of the vasodilating agent adenosine as stressor in conjunction with myocardial contrast echocardiography has not been extensively evaluated in hypertensive patients. Our aim was to evaluate the diagnostic value of adenosine myocardial contrast echocardiography (MCE) in comparison to single-photon emission computed tomography (SPECT), with reference to angiographic ...
Boztosun Bilal - - 2008
The left main coronary angiography (LMCA) ranges from 3 to 6 mm in diameter and may be up to 10 to 15 mm in length in humans. We here report a case of the longest LMCA (38 mm) in a 60-year-old woman with subacute anterior myocardial infarction. In coronary angiography ...
Sokmen Gulizar - - 2008
Coronary artery aneurysms are defined as coronary dilatations which exceed the diameter of normal adjacent segments by 1.5 times. Left main coronary artery (LMCA) is the least frequently involved artery with a prevalence of 0.1%. Majority of coronary artery aneurysms are atherosclerotic in origin. Their size and clinical presentation is ...
Gupta S - - 2007
Coronary artery bypass surgery (CABG) is the treatment of choice in unprotected left main coronary artery disease (ULMCA). However drug eluting stent (DES) implantations in ULMCA have ushered a revolution in the field of percutaneous coronary interventions (PCI) for left main coronary artery (LMCA) by reducing peri-procedural mortality and incidence ...
Depasquale Kalpana S - - 2007
Congenital anomalies of the right main bronchi have not been fully described. Bronchial anomalies are usually asymptomatic unless they coexist with other abnormalities. We describe a rare bronchial anomaly in a 2-month-old girl in which the right upper lobe, middle lobe, and lower lobe bronchi all originated at the same ...
Namboodiri Narayanan - - 2007
A single coronary artery (SCA) in the absence of structural heart disease is a rare coronary anomaly and is often detected incidentally during coronary angiography. We report a hitherto undescribed type of SCA originating from the right sinus of Valsalva, with the left anterior descending artery having a septal course ...
Tanaka Keita - - 2007
Coronary ostial stenosis is one of the cardiac manifestations of tertiary syphilis and should be perceived as a disorder of the aorta. A 45-year-old man with no coronary risk factors except smoking developed severe isolated ostial stenosis in the left main coronary artery. He underwent emergency bypass surgery using the ...
Ozdol Cagdas - - 2007
Catheter-induced left main coronary artery dissection is an uncommon but devastating complication of coronary angiography and percutaneous coronary intervention. We present a case of left main coronary artery dissection induced with a guide catheter, which resulted in acute occlusion and cardiac arrest. Survival and complete functional recovery were achieved with ...
Wang Xi-Ming - - 2007
OBJECTIVE: To explore the clinical application of 64-slice spiral CT in the diagnosis of the Tetralogy of Fallot. METHODS: Eighteen patients with diagnosed Tetralogy of Fallot underwent cardiac CT angiography with 64-slice CT (CTA). Two- and three-dimensional images were used for diagnosing in all cases by means of MPR (coronal, ...
Komatsu Sei - - 2008
A 75-year-old man, who had a history of coronary dissection after percutaneous coronary intervention in left anterior descending coronary artery, underwent coronary magnetic resonance. Magnetic resonance demonstrated coronary dissection in the distal portion of the left anterior descending artery. Both the true lumen with thick vessel wall and the false ...
Ozdogru Ibrahim - - 2008
We report perforation of a side branch of left main coronary artery during coronary angiography. We suppose that the engaging of the catheter into a small side branch caused this complication. Furthermore, we observed that the conservative approach might be successful in the restoration of such coronary artery perforations. To ...
Paç F Ayşenur - - 2007
The extrinsic compression of left main coronary artery (LMCA) by dilated pulmonary artery is rarely reported. Various congenital and acquired diseases were shown to cause extrinsic LMCA compression. Here we present a child with aortic root and LMCA compression due to dilated pulmonary trunk and causing angina like chest pain. ...
Harikrishnan S - - 2007
Spontaneous coronary artery dissection is a rare cause of myocardial infarction and sudden cardiac death. A 32-year-old man presented with effort angina. He had a positive treadmill exercise electrocardiogram test, and coronary angiography showed that he had dissection of all major coronary vessels. The left anterior descending coronary artery was ...
Lindstaedt Michael - - 2007
BACKGROUND: Decisions for coronary revascularisation are frequently based on visual assessment of the severity of a stenosis. In patients with intermediate left main stem lesions clinical decision making based on FFR is safe and feasible. This study was performed to assess the accuracy of visual angiographic assessment of intermediate or ...
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