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Ko Sung-Min - - 2008
AIMS: The aims of this study were to evaluate the incidence and the clinical significance of myocardial bridging in 401 patients with chest pain examined with 16-row Multidetector CT (MDCT) coronary angiography. MATERIAL AND METHODS: Four hundred nine consecutive patients who had chest pain or symptoms suggestive of coronary artery ...
Guo Hangyuan - - 2007
We describe a case of a 41-year-old woman with chest pain for 1 hour who was admitted to our emergency room with acute myocardial infarction. Coronary angiography and spiral computer tomography showed myocardial bridging and an intracoronary thrombus in the mid-segment of the left anterior descending artery. She felt better ...
Huang Xiao-Hong - - 2007
BACKGROUND: Myocardial bridging with systolic compression of the left anterior descending coronary artery (LAD) may be associated with myocardial ischaemia. The clinical outcome in patients with surgical treatment for symptomatic myocardial bridging remains undetermined. This study assessed the middle- and long-term results of surgical treatment for symptomatic myocardial bridging. METHODS: ...
Atar Eli - - 2007
OBJECTIVE: Myocardial bridging is a congenital condition in which a segment of an epicardial artery has an intramural course within the myocardium. The aim of the present study was to evaluate the prevalence of myocardial bridging and the ability of 64-slice coronary computed tomography angiography to identify myocardial bridging in ...
Honda Tsuyoshi - - 2007
BACKGROUND: Patients with hypertrophic cardiomyopathy (HCM) frequently complain of angina-like symptoms in the absence of organic coronary stenoses. Coronary spasm might cause myocardial ischemia in HCM patients. Delta-sarcoglycan plays a crucial role in the pathogenesis of HCM and coronary spasm in a mouse model. METHODS AND RESULTS: This is a ...
Nakamura Koki - - 2008
We report the case of a 38-year-old Asian man with a pericardial hemangioma on the left main coronary artery. The patient presented initially at our hospital after cardiopulmonary resuscitation following an episode of ventricular fibrillation (VF). Because of spontaneous coved-type ST segment elevation on the higher intercostal space V1 to ...
Koh Kwang Kon - - 2008
A 59-year-old female came to the clinic to evaluate an operation risk of knee joint arthritis. She has history of hypertension for 6 years. She complained of dyspnea on exercise before. Radionuclide imaging demonstrated large moderate perfusion defect in anterior, anteroseptal, and anterolateral regions with significant reversibility. ECG gated 64-multidetector ...
Kim Jin Won - - 2007
The longstanding compression-relaxation effects of myocardial bridging may produce endothelial dysfunction by direct stress on the endothelium. We tested the hypothesis that myocardial bridging induces endothelial dysfunction and subsequently increases the risk of coronary spasm and investigated the symptomatic response to medication in patients with documented myocardial bridging and coronary ...
Ashikaga Takashi - - 2007
Endothelial dysfunction is considered one of the mechanisms underlying vasospastic angina pectoris (VSA). It is also known that smokers have abnormalities in endothelial dysfunction. Although smoking is a major risk factor for coronary artery disease, microvascular abnormalities have not been well shown. We investigated clinical characteristics and coronary reactivity with ...
Itoh Teruhiko - - 2007
BACKGROUND: Coronary spasm plays an important role in the pathogenesis of ischemic heart disease and it may be associated with low-grade inflammation. METHODS AND RESULTS: Intracoronary injection of acetylcholine was done in 199 patients (99 men, 100 women, mean age, 64.5+/-11.0 years) with chest pain and normal coronary angiograms. According ...
Skelding Kimberly A - - 2007
We present the case of a young woman who developed an acute onset of classic cardiac symptoms, but because of her age and lack of risk factors, had a significant delay in transfer for cardiac catheterization. She was found to have spontaneous dissection of the left coronary system, eventually requiring ...
Qian Juying - - 2007
Patients with myocardial bridging (MB) may experience myocardial ischemia. Coronary stenting was reported to serve as an effective interventional approach to improve symptoms in selected patients with MB, but is related to high risk of coronary perforation. The aim of this study is to investigate vessel area in the myocardial ...
Iltumur Kenan - - 2008
Spontaneous coronary dissection (SCAD) is an unusual cause of acute myocardial infarction with complex pathophysiology. We present a case of acute inferior myocardial infarction resulting from spontaneous coronary artery dissection of the right coronary artery in a 33-year-old woman during the hemodialysis due to a recent abortion and consequent curettage ...
Brodsky Sergey V - - 2008
Myocardial bridging of a coronary artery is an anatomic anomaly in which a major epicardial coronary artery extends intramurally into the myocardium for a part of the vessel's course. The left anterior descending coronary artery (LAD) is most frequently involved. Myocardial bridging is often asymptomatic, although myocardial pathology, arrhythmias and ...
Chen Jack P - - 2007
Methamphetamine (MET) is a growing public health concern and is prevalent in, although not limited to, the youth. The drug's association with myocardial infarction is well described and is attributed to accelerated atherosclerosis, hypercoagulable state, and macrovascular epicardial coronary spasm. However, global slow-flow of all coronary systems in the absence ...
Zeina Abdel-Rauf - - 2007
OBJECTIVE: The correlation between myocardial bridge and atherosclerotic changes has been controversial. The aim of this study was to evaluate the relation between myocardial bridge and atheromatous coronary artery disease (CAD). MATERIALS AND METHODS: Three hundred consecutive subjects who underwent coronary CT angiography (CTA) were included in this study. The ...
Hazirolan Tuncay - - 2007
The aim of this study is to show the usefulness of MDCT in the diagnosis of myocardial bridging. Although most of the time myocardial bridging is a benign condition, it may be associated with myocardial ischemia and secondary complications. Therefore, it is important to be able diagnose the presence of ...
Burgdorf Christof - - 2008
Transient left ventricular apical ballooning has been recognized as a differential diagnosis of myocardial infarction causing a substantial and ongoing increase of investigations focusing on this topic. Concomitant appearance of transient left ventricular apical ballooning and coronary artery disease has so far not been reported. Here we report on a ...
D'Aloia Antonio - - 2007
A novel syndrome with transient asynergy of the apical segments of the left ventricle, also known as tako-tsubo cardiomyopathy, has been recently described and presents characteristics and effects similar to acute myocardial infarction. We report the case of a 69-year-old woman presenting with chest pain typical of myocardial ischemia, electrocardiographic ...
Duygu Hamza - - 2007
OBJECTIVE: Myocardial bridge (MB) is a congenital anomaly characterized by narrowing during systole of some of the epicardial coronary arterial segments running in the myocardium. Although, it is considered as a benign anomaly, it may lead to such complications as acute myocardial infarction, ventricular tachycardia, syncope, atrioventricular block and sudden ...
Dupont Matthias - - 2008
We report a case of a 21-year-old man with a myocardial bridging of the left anterior descendens coronary artery associated with a regional systolic dysfunction of the left ventricle. Continuously elevated troponin levels suggested the presence of myocardial ischemia. Because of a tendency of worsening left ventricular systolic function, this ...
Pierre-Justin Gilbert - - 2007
Spontaneous coronary artery dissection is a rare cause of myocardial infarction. It has been reported mainly in young women during or after pregnancy. The diagnosis is usually confirmed at autopsy. The management of these patients remains controversial. We report the case of a patient who presented spontaneous dissection and was ...
Al-Sayegh Ali - - 2007
Coronary artery spasm is an infrequently recognized condition that causes Prinzmetal's angina and specific electrocardiographic changes. A 50-year-old man who suffered a spontaneously aborted acute inferior myocardial infarction is presented. He underwent cardiac catheterization, which initially showed a normal coronary artery. The coronary angiogram was repeated shortly after a second ...
Tsuda Etsuko - - 2007
There exists a population of adults with undiagnosed coronary arterial lesions due to Kawasaki disease occurring before 1967. We report the clinical features in 6 adult males with coronary arterial lesions caused by presumed Kawasaki disease, whose dates of birth ranged from 1945 to 1963. The age of the diagnosed ...
Beiras-Fernandez A - - 2007
Coronary artery anomalies are not frequent, nevertheless they are associated with increased and potentially lethal cardiac events. Recognition of these anomalies is fundamental in patients undergoing diagnostic or interventional coronary angiography. Most patients presenting with coronary anomalies are asymptomatic, but the risk of myocardial ischemia and sudden death requires the ...
Yilmaz Ali - - 2007
Coronary vasospasm is a severe vasoconstriction of an epicardial coronary artery, which may lead to myocardial ischemia and cause symptoms of angina. The gold-standard for diagnosing coronary vasospasm is to perform an intracoronary provocation test and to demonstrate the epicardial vasoconstriction by coronary angiography. We report the case of a ...
Araszkiewicz Aleksander - - 2007
The present report describes a young female patient with acute myocardial infarction and inflammatory lesions limited to proximal and midsegments of the left anterior descending coronary artery. Based on the presence of positive inflammatory markers, an angiographically confirmed coronary artery lesion and the young age of the patient, an atypical ...
Nepal M - - 2007
Tako-tsubo cardiomyopathy, a novel heart syndrome with peculiar variant of left ventricular dysfunction, characterized by preferential apical dyskinesis and basal hyper contractility has been described on numerous occasions especially in persons without obstructive coronary artery disease. It is considered of reversible etiology and seems to have increased predisposition in elderly, ...
Matsuo Shinro - - 2007
Coronary vasospasm and diminished coronary blood flow reserve have often been reported in patients with hypertrophic cardiomyopathy (HCM). However, the mechanism of coronary spasm in HCM is unknown. Thus, coronary endothelial function and sympathetic nerve function in 11 patients with HCM and 11 control patients matched for age and sex ...
Nguyen Trung H - - 2007
Myocardial bridging has been observed to provoke symptoms in association with strenuous physical activity and hypertrophic cardiomyopathy; more recently, bridging has been thought to cause coronary vasospasm. Autopsy findings tend to reveal higher incidences of bridging than do angiography series, but both show an almost uniform predilection for left coronary ...
Doriot Pierre-André - - 2007
A recent model describing the mechanical interaction between a stenosis and the vessel wall has shown that axial wall stress can considerably increase in the region immediately proximal to the stenosis during the (forward) flow phases, so that abnormal biological processes and wall damages are likely to be induced in ...
Ajani Andrew E - - 2007
Coronary artery spasm is an important cause of chest pain and myocardial ischaemia. It can be defined as an exaggerated contractile response of epicardial coronary artery smooth muscle to various stimuli but the underlying mechanism is not well understood. Recent studies have shown that the loss of endothelial vasodilatory function ...
Canale Maria Laura - - 2006
Cardiac toxicity is an uncommon side-effect of 5-fluorouracil (5-FU) treatment, consisting mainly of chest pain episodes with or without electrocardiographic changes and dysrhythmias. Here, we describe the case of a 56-year-old male patient with a diagnosis of advanced colorectal cancer who developed an acute myocardial infarction during 5-FU infusion. The ...
Widimsky P - - 2006
BACKGROUND: Acute ST-elevation myocardial infarction in patients with normal coronary arteries has previously been described, but coronary angiography in these patients was performed after the acute phase of the infarction. It is possible that these patients did not have normal angiograms during the acute phase (transient coronary thrombosis or spasm ...
Truong Angela T - - 2006
Coronary artery spasm (CAS) may result from endothelial dysfunction in nonobstructed arteries. Its complications include myocardial infarction, dysrhythmias, and death. It is difficult to diagnose CAS during general anesthesia because it closely mimics obstructive ischemia. We report the case of a patient who demonstrated intraoperative CAS during two separate surgeries. ...
Letsas Konstantinos P - - 2007
Syncope and/or cardiac arrest in the setting of coronary artery spasm have been associated with atrioventricular block and asystole or ventricular tachyarrhythmias. Ventricular arrhythmias have been predominantly reported in cases of multivessel coronary artery spasm. The present report highlights the case of a young woman who suffered repeated episodes of ...
Lee Bae Young - - 2007
We present a case of myocardial infarction in a young female with reninoma induced hypertension and myocardial bridging. Reninoma is a rare and curable cause of secondary hypertension. Currently developed multi-detector computed tomography (MDCT) has permitted better evaluation of myocardial infarction and myocardial bridging. Myocardial infarction associated with reninoma and ...
Capuano Cinzia - - 2006
Spontaneous coronary artery dissection (SCAD) is a rare condition that usually occurs in relatively young patients who are predominantly female. Seldom it could be a cause of acute myocardial ischemia leading to a sudden cardiac death. SCAD consists of intramural hematoma formation or, rarely, intimal tears that initiate and propagate ...
Rezayat Parvizi - - 2006
OBJECTIVE: To investigate the results of surgery and long-term follow up in 26 patients who were symptomatic due to myocardial bridge. METHODS: From 1999-2004 more than 18800 coronary angiography were performed in the Shahid Madani Heart Hospital, Tabriz, Iran. Of these, 290 (1.5%) cases had angiographic diagnosis of myocardial bridge. ...
Gach Olivier - - 2006
Coronary artery fistula is a relatively rare finding in patients undergoing diagnostic cardiac catheterization. Incidence, angiographic characteristics and natural history of coronary fistulas of this type have not been well defined in the literature. We report a case of a 54-year-old man in whom such abnormalities have been diagnosed with ...
Baslaim Ghassan M - - 2006
OBJECTIVE: To determine the effect of preoperative echocardiographic delineation of coronary artery pattern on the immediate postoperative result of arterial switch procedures. METHODS: A retrospective review of a consecutive series of children who underwent the arterial switch operation at a single institution from February 2001 to December 2004. RESULTS: Sixty-six ...
Rosztóczy András - - 2007
The aims of the study were to assess pathogenetic role of gastro-oesophageal reflux and the oesophago-cardiac reflex in subjects with chest pain. To evaluate the prevalence of gastro-oesophageal reflux disease and the oesophago-cardiac reflex in patients with different coronary artery diseases and in coronary spasm. PATIENTS, METHODS: Fifty-one patients with ...
Valencia Jose - - 2006
Coronary artery spasm is usually defined as a focal constriction of a coronary artery segment, reversible, and causing myocardial ischaemia by coronary blood flow restriction. Sometimes this condition is not focal and can compromise all the coronary tree. This is a very rarely described event. Generally, coronary vasospasm may occur ...
Shimony Avi - - 2006
A 48-year-old woman presented with acute coronary syndrome and underwent coronary angiography which revealed myocardial bridging at the distal end of the left anterior descending artery with otherwise normal coronary arteries. The patient used to take ergotamine for her chronic migraine. Possible association with myocardial bridging which was found in ...
Patel Tejas M - - 2006
Coronary dissection is one of the most frequently occurring complications during coronary interventional procedures. However, extensive coronary dissection retrograde to the coronary sinus of Valsalva and to the arch of aorta is very rarely observed. The authors report a case of retrograde coronary dissection extending into the arch of aorta. ...
Witters Peter Gerard Julia - - 2006
OBJECTIVES: In acute myocardial infarction, it is of great value to identify the infarct-related artery and the site of occlusion in a coronary artery (proximal versus distal). This study assessed the diagnostic value of two previously published electrocardiographic algorithms to identify the infarct-related artery and the site of occlusion in ...
Celik Turgay - - 2006
Although myocardial bridges are mostly confined to the left anterior descending coronary artery, several cases of right coronary artery myocardial bridging have been reported in the literature. In the current case report, we present a 65-year-old female with a well-functioning mechanical mitral valve prosthesis, severe pulmonary hypertension and right ventricle ...
Thomson Vivien - - 2007
We present a case of symptomatic primary hypertrophic cardiomyopathy (HCM) associated with myocardial bridging of the left anterior descending (LAD) artery and suspected ischemia that could be related either to LAD artery compression or to microvascular perfusion abnormalities. MRI demonstrated the morphological appearance of myocardial hypertrophy, and coronary MR angiography ...
Hung Ming-Jui - - 2007
BACKGROUND: Coronary vasospasm-induced electrical and mechanical complications in patients with acute coronary syndrome and no hemodynamically significant coronary artery disease are rarely reported. METHODS: A total of 733 consecutive patients with acute coronary syndrome admitted to our hospital who subsequently underwent coronary angiography at our institution were enrolled. Patients who ...
Dursun Ihsan - - 2006
Myocardial bridging is one of the nonatherosclerotic causes of coronary artery disease and is characterized by muscles overlying the intramyocardial course of a major epicardial coronary artery segment, leading to systolic compression. Myocardial bridging is considered a benign condition in most cases, but has been associated with serious cardiac events ...
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