Search Results
Results 301 - 350 of 859
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Angelini Paolo - - 2003
BACKGROUND: Anomalous coronary artery originating from the opposite sinus of Valsalva (ACAOS) can cause syncope, myocardial infarction, and sudden death in the absence of critical, fixed stenosis. In the following cases, intravascular ultrasonography (IVUS) was used to document the functional anatomy in ACAOS. This application has not been previously reported ...
Teragawa Hiroki - - 2003
BACKGROUND: Myocardial bridging (MB) has been associated with cardiac events. Whether coronary spasm is one factor contributing to those events is unknown. HYPOTHESIS: This study investigated whether the likelihood of coronary spasm is increased in patients with MB. METHODS: A spasm-provocation test was performed by infusing acetylcholine into the left ...
Walters Darren L - - 2003
A young woman with hypertrophic cardiomyopathy presented with intractable chest pain due to a myocardial bridge over the left anterior descending artery, producing severe compression during systole. Percutaneous intracoronary stenting was performed. The patient, however, developed severe and diffuse restenosis within 30 days of the procedure. Myotomy may provide a ...
Meune Christophe - - 2003
OBJECTIVE: The clinical features of coronary artery spasm as a cause of cardiac arrest were determined in a prospective study on out-of-hospital cardiac arrest (OHCA). METHODS: Coronary angiography was performed at admission in 300 consecutive patients with no obvious non-cardiac cause of OHCA. In survivors with no or minimal coronary ...
Katayama Takaharu - - 2003
This is a case report of a 19-year-old man who presented with acute myocardial infarction with obstruction of one coronary artery and rapid progression to three vessels in 8 months. He was proved to have sitosterolemia, a rare hereditary disease with plant sterol storing, resulting in juvenile coronary artery disease. ...
Diaz-Widmann José - - 2003
We report a case of anterior myocardial infarction in a middle-aged man without risk factors for atherosclerosis in whom myocardial bridge was diagnosed several years later. An abnormal wall motion during acute myocardial infarction masked the characteristic angiographic findings of myocardial bridge and rendered it unappreciable during the initial angiographic ...
Hori Tomoyuki - - 2003
The basal activity of nitric oxide (NO) is reduced in spastic arteries of patients with vasospastic angina (VSA). Elevated concentrations of ADMA are associated with reduced NO production and impaired endothelium-dependent vasodilatation. The aim of this study was to elucidate the role of ADMA and its relationship to NO end-products ...
Takano Masamichi - - 2003
We report an acute myocardial infarction in a patient with a single coronary artery. The right coronary artery arose from the middle portion in the left anterior descending artery through the transverse branch. This type of single coronary artery has not been previously reported. Moreover, this is the first report ...
Fukuda Naoto - - 2003
A 13-year-old girl was successfully recuperated from cardiopulmonary arrest shortly after running 80 m in a competition. The electrocardiogram, echocardiogram and 123I-MIBG myocardial scintigraphic imaging indicated myocardial ischemia in the anteroseptal wall of the left ventricle. Coronary angiography during the recovery phase revealed no stenotic lesions, and spasms of the ...
Hung M J - - 2003
A 27-year-old man developed acute myocardial infarction after intravenous amphetamine use. A coronary angiogram showed plaques in the mid-portion of the left anterior descending artery which developed coronary artery spasm after administration of intracoronary ergonovine. The findings in this case suggest that these coronary artery plaques played a role in ...
Chen Fengshi - - 2003
A 63-year-old man with a low forced expiratory volume in 1 s underwent a wedge resection for peripheral lung cancer; however, it relapsed in the residual lobe. We decided that a lobectomy was feasible after further examinations focusing on gas exchange. During the lobectomy right ventricle myocardial infarction occurred, possibly ...
Mohri Masahiro - - 2003
OBJECTIVES: We sought to determine whether a potent Rho-kinase inhibitor fasudil prevents the occurrence of myocardial ischemia in patients with microvascular angina attributable to coronary microvascular spasm. BACKGROUND: Effective treatment of patients with angina who have normal coronary arteriograms (microvascular angina) has not yet been established. Rho-kinase-mediated calcium sensitization of ...
Timurkaynak Timur - - 2002
Angina and myocardial infarction have been reported in hyperthyroidism with normal coronary arteries, presumably secondary to thyroid-induced coronary artery spasm. We report the case of a very young female patient with an atypical presentation of acute myocardial infarction mimicking pulmonary embolization secondary to thyrotoxicosis. Hyperthyroidism should be kept in mind ...
Maresta Aleardo - - 2002
Spontaneous coronary artery dissection is a rare cause of ischemic heart disease, often related with a poor prognosis. We report the case of a 38-year-old woman without cardiovascular risk factors, admitted to our coronary care unit for unstable angina with ECG findings of inferior ischemia. The day after, an acute ...
Rozenberg V D - - 2002
The hearts of patients who died of coronary disease and had myocardial bridges were studied by postmortem coronary angiography, cardioventriculography, and complex pathomorphological analysis. The relationship between the incidence and pathomorphology of myocardial bridges, on the one hand, and the type of blood supply, segmentary topography of the major coronary ...
Sakuma M - - 2002
A 65-year-old man was admitted to our hospital with acute myocardial infarction (MI). Emergency coronary angiography showed no significant organic lesions, but a myocardial bridge was found at the mid-left anterior descending artery An acetylcholine provocation test revealed 90% spastic stenosis just proximal to the myocardial bridge. His acute MI ...
Ito Masahiro - - 2002
A 73-year-old heavy drinker was admitted to hospital in a state of shock. He had been suffering from frequent angina at rest, causing him to drink more heavily in an effort to overcome his anginal chest pain. He had been drinking hard each day and had not eaten for 4 ...
Nayar Pradeep G - - 2002
Myocardial bridging is a rare coronary anomaly which is generally considered to be benign. Although the hemodynamic burden exerted by this entity has been demonstrated by intravascular ultrasound and Doppler studies, there are few reports of bridge-related infarction accompanied by severe hemodynamic compromise. We report one such patient who presented ...
Johnson W Dudley - - 2002
Acute coronary dissection is an uncommon event, usually not related to typical coronary risk factors, usually in women, and usually diagnosed at autopsy. This report describes a young woman with extensive left anterior descending coronary artery (LAD) dissection, refused for intervention since there was no lesion to angioplasty and no ...
Nedeljkovic Milan A - - 2002
We present a 53-year-old male with recurrent episodes of vasospastic angina and serious complications of coronary artery spasm including ventricular fibrillation and myocardial infarction, who was treated with coronary stenting at the site of ergonovine-induced coronary vasospasm where the coronary artery appeared angiographically normal, i.e., without evidence of atherosclerotic lesion.
Seniuk W - - 2002
We present three patients with variant angina pectoris and episodes of cardiac arrest. All of them had typical clinical symptoms, ST-segment changes in electrocardiogram, and coronary artery spasm confirmed by arteriography. They were treated with high doses of calcium antagonists and nitrates. An automatic cardioverter-defibrillator was implanted in the patient ...
Yamasa Toshihiko - - 2002
OBJECTIVE: In this study, clinical findings were evaluated in 16 patients with reversible left ventricular dysfunction (RLVD) who showed a clinical picture similar to that of acute myocardial infarction, in addition to akinesis or dyskinesis of the left ventricular apex without showing any abnormalities in the coronary artery. RESULTS: The ...
Gorgulu Sevket - - 2002
Cardiotoxicity is an uncommon adverse effect of 5-fluorouracil (5-FU). Coronary artery spasm has been postulated to be involved in the mechanism of this incident Patients may present with angina, myocardial infarction, arrhythmias and/or even sudden death. When the drug is readministered, there is a high risk of relapse. The underlying ...
Akdemir Ramazan - - 2002
Systolic compression of a coronary artery by overlying myocardial tissue is termed myocardial bridging. Myocardial bridging usually has a benign prognosis, but some cases resulting in myocardial ischemia, infarction and sudden cardiac death have been reported. We are reporting a case of myocardial bridging which was complicated with acute myocardial ...
Sueda Shozo - - 2002
This study sought to clarify the effectiveness of intracoronary administration of a thromboxane (TX) A2 synthase inhibitor, Ozagrel Na, to relieve coronary spasms induced by intracoronary injection of acetylcholine (ACh). An ACh spasm provocation test was performed in 92 consecutive patients with coronary spastic angina using incremental doses of 20, ...
Okmen Ertan - - 2002
Myocardial bridging most frequently occurs on the left anterior descending coronary artery and may cause ischemia and related complications. Right coronary artery myocardial bridges (MB) are rare. We report a patient with an unusual coronary bridge, a left circumflex coronary artery bridge, who presented with exercise-induced angina pectoris that was ...
Nishi Isao - - 2002
The pathogenesis of dilated cardiomyopathy (DCM) is unknown, but clinical evidence suggests that coronary vasospasm is associated with the development of DCM in some cases. In the present study, we aimed to clarify the prevalence of coronary vasospasm in patients with DCM, the characteristics of patients with DCM and coronary ...
Khatri Shailesh - - 2002
We evaluated coronary stenting in nine patients with clinically severe, angiographically documented spasm refractory to aggressive pharmacologic management. No patient subsequently developed unstable ischemia requiring hospitalization as a consequence of recurrent spasm within the stent. Mechanisms of therapeutic failure included both persistent spasm and spasm in a different artery in ...
Berry John F - - 2002
Six cases in our institution of various presentations of left anterior descending (LAD) myocardial bridging were found on coronary angiography. Generally a benign condition, this finding can result in ischemia or infarction as seen in some of our cases. We found one case in which the bridge resulted in an ...
Badmanaban Balaji - - 2002
Spontaneous dissection of the left main coronary artery is the least common of all dissections involving the coronary arteries. It usually occurs in young women, especially in the peripartum or early postpartum period. We describe the case of a 59-year-old man with no previous history of atherosclerotic heart disease who ...
Imazio Massimo - - 2002
This report describes a case of an unusual association between vasospastic angina, coronary myocardial bridging, and Brugada syndrome. The patient complained of chest pain followed by rhythmic palpitation and syncope. Brugada syndrome ECG markers were documented with transient ST-segment elevation in lateral leads. A coronary angiogram showed a myocardial bridging ...
Fiocca Luigi - - 2002
In selected patients suffering from variant angina, an implantable cardioverter-defibrillator (ICD) and coronary stenting can be helpful to prevent sudden death and treat coronary artery spasm. We report a case of a 47-year-old woman suffering from variant angina, who experienced an episode of ventricular fibrillation promptly cardioverted. After coronary angiography ...
Scheinert D - - 2002
BACKGROUND: Intracoronary brachytherapy is effective in preventing restenosis after coronary interventions. However, in vitro and animal studies have shown that irradiation produces immediate and sustained endothelial dysfunction. This study assesses the clinical relevance of impaired vasomotoric function induced by brachytherapy. METHODS AND RESULTS: We analyzed the occurrence of postradiation coronary ...
Sun Hongtao - - 2002
OBJECTIVES: We aimed to test the hypothesis that coronary microvascular spasm (MVS) alone causes myocardial ischemia in patients with angina attributable to epicardial coronary spasm, and to determine whether there is a difference in clinical characteristics between those with and without microvascular spasm. BACKGROUND: Patients with "vasospastic angina" have epicardial ...
Mohamed Hassan A - - 2002
Spontaneous coronary artery dissection remains an extremely rare cause of myocardial ischemia and infarction. The clinical picture of spontaneous coronary dissection is often sudden cardiac death or fatal myocardial infarction. This report describes a previously healthy woman who developed spontaneous coronary artery dissection. She presented with sudden onset of chest ...
Papaefthimiou Chrisovalantis - - 2002
The action of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) on the isolated heart of the frog (Rana ridibunda) and two insects, the honeybee (Apis mellifera macedonica) and the beetle (Tenebrio molitor), was investigated using basic electrophysiological methods. The results of this study showed that a concentration of 1 μM 2,4-D was ...
Kurisu Satoshi - - 2002
BACKGROUND: Peculiar asynergy, which consists of hypokinesis or akinesis from the mid portion to the apical area and hyperkinesis of the basal area on contrast left ventriculogram, is rare. Because the end-systolic left ventriculogram looks like a "tako-tsubo," which was used for trapping octopuses in Japan, we proposed the term ...
Kurotobi Shunji - - 2002
BACKGROUND: The coronary assessments in Kawasaki disease are mainly based on the Japanese Ministry of Health and Welfare criteria, which is simply classified according to the patient's age, over 5 years and less than 4-years-old. METHODS: We obtained normal values of coronary diameters adjusted for the body surface area and ...
ÇORAPÇIOĞLU, TÜMER
Biri 43 yaşında diğeri 51 yaşında iki ayrı hasta göğüs ağrısı nedeniyle kliniğimize başvurdular. Koroner anjiyografileri, aterosklerotik değişiklikler olmadığını, fakat her iki hastada da LAD (sol anterior inen) arter üzerinde myokardiyal band olduğunu gösterdi. Betablokerler ile medikal tedavilerine başlandı. Bu tedaviye rağmen hiçbir gelişme sağlanmadı ve hastalarda 15 dakika süren ...
Mahilmaran Asha - - 2002
We report a very rare case of a 47-year-old man who had coronary spasm that resulted in a silent myocardial infarction, a ruptured myocardial wall, and a nonruptured left ventricular pseudoaneurysm. The patient presented with a 6-month history of dyspnea on exertion, without evidence of fixed coronary artery stenosis. Coronary ...
Bittner Hartmuth B - - 2002
Native coronary artery or bypass graft spasm is a rare cause of acute myocardial infarction after coronary artery bypass grafting. This report presents angiographic documentation of native coronary artery spasm following successful multivessel off-pump coronary revascularization, which caused myocardial ischemia leading to inferior wall myocardial infarction and ventricular fibrillatory arrest.
Rezkalla Shereif H - - 2002
Myocardial infarction has been reported with ephedrine and pseudoephedrine use. It has been suggested that these agents may induce coronary artery spasm, hypercoagulable states, or oxygen demand imbalance. We report a 25-year-old male with myocardial infarction after receiving a diet pill containing ephedra. Coronary angiography revealed normal coronary arteries with ...
Liang Hsin-Yueh - - 2002
Acute myocardial infarction is unusual in a young woman, especially with normal coronary arteriography. There are several mechanisms hypothesized, including coronary artery embolism, coronary spasm, illegal drug abuse and toxic condition. However, the etiology could be detected in only one third of these patients. Although air travel is known to ...
Dhawan Rajiv - - 2002
Spontaneous coronary artery dissection is a rare but increasingly reported cause of myocardial ischemia and sudden death. It is more commonly seen in younger age groups and has a predilection for postpartum women. The clinical spectrum of its presentation includes angina, myocardial infarction, cardiogenic shock, and death. No specific cardiac ...
Ito Teruhiko - - 2002
We recently reported that oxidative stress is involved in the pathogenesis of coronary spasm. We hypothesized that oxidative-stress-related genetic factors and certain polymorphisms in the paraoxonase gene (PON1) and platelet-activating factor acetylhydrolase (PAF-AH) might influence the pathogenesis of coronary spasm. We therefore examined the possible association between the PON1 Q192R ...
Teragawa H - - 2001
In order to evaluate peripheral endothelial function in patients with vasospastic angina (VSA), we measured flow-mediated dilation (FMD) of the brachial artery in patients with VSA and compared it with FMD in patients without VSA. Endothelial dysfunction is considered one of the mechanisms underlying VSA. However, its exact role remains ...
Ceyhan C - - 2001
We described here a patient envenomated by a bee sting that caused myocardial damage compatible with non-ST elevation acute myocardial infarction. She developed a typical course of myocardial infarction; the ECG changes were reversed to almost all normal limits. She had normal coronary angiography and reversible wall motion abnormalities. Myocardial ...
Da Costa A - - 2001
OBJECTIVES: The purpose of this study was to evaluate the clinical outcome of a large cohort of patients who suffered an acute myocardial infarction with absolutely normal epicardial coronary arteries at the post-myocardial infarction coronary angiogram. The aetiological and prognostic factors in this population were also analysed. BACKGROUND: Few data ...
Singh V - - 2001
A study was undertaken in Mangalore, South Kanara District of Karnataka, India to evaluate the rising prevalence of coronary artery diseases in our country. Seventy hearts were analysed, at post-mortem, between December 1996 and December 1997. The coronary arteries and the myocardium were examined, both grossly and histologically, to relate ...
Gruberg L - - 2001
Intracoronary radiation therapy is currently the only available treatment for the prevention of recurrence of in-stent restenosis. We report a case of severe coronary spasm after excimer laser angioplasty, balloon angioplasty, and intracoronary gamma radiation in the right coronary artery (RCA) that resulted in an acute myocardial infarction. Treatment with ...
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