Search Results
Results 401 - 450 of 1000
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Kolodgie F D - - 2001
While the concept of plaque 'vulnerability' implies a propensity towards thrombosis, the term vulnerable was originally intended to provide a morphologic description consistent with plaques that are prone to rupture. It is now known that the etiology of coronary thrombi is diverse and can arise from entities of plaque erosion ...
Tegos T J - - 2001
BACKGROUND AND PURPOSE: Our hypothesis was that symptomatic and asymptomatic carotid plaques are different. The aim of this study was to identify the sonographic tissue and surface characteristics of plaques and their degree of stenosis that corresponded to these two clinical presentations. METHODS: We studied 81 symptomatic and 111 asymptomatic ...
Patanè F - - 2001
A case is reported of a 30-year-old patient with an intrapericardial tumour with heart failure. After the diagnostic protocol, surgery was performed initially without extra-corporeal circulation (ECC). Due to the location, size and to the large connection with the most important vascular structures, the ascending aorta ruptured accidentally during resection ...
García-Fernández M A - - 2001
Myocardial rupture is an uncommon and catastrophic complication after acute myocardial infarction. It can present in an acute form or in a subacute form, with slower hemorrhage and thrombus formation at the site of rupture. These patients can survive several hours or days before the diagnosis is confirmed and the ...
Hamamoto M - - 2001
We experienced a rare case of ruptured left ventricular pseudoaneurysm penetrating into the left pleural cavity. A 77-year-old woman was first diagnosed with unstable angina due to sudden chest pain onset and abnormal electrocardiographic findings. In 2 days, massive left pleural effusion was recognized by chest X-ray, though subsequent computed ...
Yoon Y W - - 2001
Left ventricular rupture is a fatal complication of acute myocardial infarction, however accurate preoperative diagnosis is still difficult. We experienced a postinfarction left ventricular rupture patient whose symptoms and radiologic findings mimicked those of acute intramural hematoma of the aorta. Upon emergency operation, he was proven to have a postinfarction ...
Mukohara N - - 2001
We report the 7th known case in the literature of cardiac angiosarcoma resulting in cardiac rupture. A 34-year-old woman was admitted presenting chest pain and pericardial effusion. After the patient had been treated for 3 months under the diagnosis of pericarditis of unknown etiology, she became hypotensive. Doppler echocardiography showed ...
Takano M - - 2001
OBJECTIVES: Mechanical and structural characteristics of vulnerable plaques were evaluated using coronary angioscopy and intravascular ultrasound. BACKGROUND: Mechanical stress and composition of plaques play an important role in plaque disruption. METHODS: Thirty-eight lesions in 38 patients were examined pre-interventionally. The plaques were classified as either yellow or white using coronary ...
Tobar R - - 2001
Acute myocardial infarction with normal coronary arteries is a relatively infrequent finding. This report describes a rare combination of an embolic event to a normal coronary artery, presumably originating from a left atrial thrombus. An anomalous origin of the infarct-related coronary artery presumably enabled preferential penetration of the clot into ...
Shigemitsu O - - 2001
A 68-year-old woman complained of chest discomfort after a traffic accident in which she driving hit a child. At about twenty-five minutes later, she went into sudden cardiogenic shock due to acute myocardial infarction caused by non-occlusive intracoronary thrombosis without significant organic coronary stenosis and without any sign of extraluminal ...
Khalil M E - - 2001
Despite a progressive reduction in acute myocardial infarction mortality over the years, death related to ventricular free wall rupture has not changed. This is mostly related to the catastrophic presentation and death within minutes in the majority of these patients. Once rupture is suspected, bedside echocardiography should be performed immediately, ...
Nilsson J C - - 2001
OBJECTIVE: To demonstrate postinfarction myocardial oedema in humans with particular reference to the longitudinal course, using magnetic resonance imaging (MRI). DESIGN: Prospective observational study. Subjects were studied one week, one month, three months, six months, and one year after presenting with a myocardial infarct. SETTING: Cardiology and magnetic resonance departments ...
Haggart P C - - 2001
BACKGROUND: ruptured abdominal aortic aneurysm (AAA) is associated with inhibition of systemic fibrinolysis. Hypofibrinolysis is a risk factor for ischaemic myocardial injury, one of the commonest complications of ruptured AAA repair. Cardiac troponin I (cTnI) is one of the most sensitive and specific marker of myocardial injury currently available. OBJECTIVE: ...
Tokui T - - 2001
We report about a 71-year-old woman with postinfarction ventricular septal rupture who was successfully treated by the transatrial closure under preoperative localization by transesophageal echocardiography. In an attempt at transatrial repair of the ventricular septal rupture, the most important thing is preoperative localization of the defect in the septum, which ...
McMullan M H - - 2001
BACKGROUND: Autopsy studies reveal that left ventricular free wall rupture (LVFWR) accounts for 7% to 24% of deaths after myocardial infarction. The condition occurs up to 10 times more often than papillary muscle or interventricular septal rupture. A high index of suspicion must be maintained to differentiate LVFWR from infarct ...
Roberts C S - - 2001
A 72-year-old woman had rupture of a coronary artery during angioplasty in the setting of abciximab therapy. Prolonged reinflation of the balloon failed to produce closure of the perforated site. Emergency coronary ligation and bypass after abciximab administration was associated with excessive postoperative bleeding.
Balachandran K P - - 2001
Early thrombolytic therapy reduces the risk of cardiac rupture but delayed thrombolysis may increase this risk, despite improving overall survival. The mechanism appears to be related to both unsuccessful early reperfusion and haemorrhagic transformation following delayed reperfusion. The effect of antiplatelet therapy with glycoprotein IIb-IIIa receptor blockers (abciximab) on cardiac ...
Robinson D P - - 2001
Analysis of broadband teleseismic data shows that the 18 June 2000 Wharton Basin earthquake, a moment magnitude 7.8 intraplate event in the region of diffuse deformation separating the Indian and Australian plates, consisted of two subevents that simultaneously ruptured two near-conjugate planes. This mode of rupture accommodates shortening by a ...
Prieto A - - 2001
Complications of acute myocardial infarction can be categorized as nonarrhythmic or arrhythmic; the latter is discussed elsewhere. Patients are at risk for a number of potentially serious or fatal complications during or after the acute infarction phase. These include shock, left ventricular free wall rupture, rupture of the interventricular septum, ...
Rinaldi C A - - 2001
Left ventricular free wall rupture is thought to account for approximately 15% of deaths following acute myocardial infarction (MI). We present a case of left ventricular free wall rupture in a 64-year-old man following a lateral MI. The diagnosis was made with 2D and colour flow Doppler echocardiography. Unfortunately the ...
Thubrikar M J - - 2001
To estimate when an abdominal aortic aneurysm (AAA) may rupture, it is necessary to understand the forces responsible for this event. We investigated the wall stresses in an AAA in a clinical model. Using CT scans of the AAA, the diameter and wall thickness were measured and the model of ...
Harris D G - - 2001
Spontaneous rupture of the heart from myocardial abscess is a rare occurrence. Most cases of spontaneous cardiac rupture are due to myocardial infarction. We present a case of a contained rupture of the heart in a patient with staphylococcal septicemia. Although cultures from the pericardial space were negative the macroscopic ...
Schmermund A - - 2001
AIM: sudden coronary death (SCD) in older individuals is generally associated with extensive coronary atherosclerosis, although it may be the first manifestation of ischaemic heart disease. In younger age-groups, SCD may occur in the presence of less severe disease. We sought to (1) examine the extent of coronary atherosclerosis in ...
Harpaz D - - 2001
This report describes an unusual course of rupture of the left ventricular free wall, complicating acute myocardial infarction. Spontaneous sealing of the rupture site enabled close echocardiographic follow-up, during which we monitored the development of intramyocardial dissecting hematoma and, finally, development of a full tear in the left ventricular free ...
Sollid J A - - 2001
In a 59-year-old man, Left ventricular free wall rupture following acute myocardial infarction was diagnosed by transthoracic echocardiography, left ventriculography and a combination of saline injection into the left ventricle and concomitant transthoracic echocardiography. The Operation was successfully performed with an extracorporeal bypass on the beating heart. Some technical aspects ...
Kollar A - - 2001
During organ procurement, maintaining adequate organ perfusion is crucial. Hemodynamic instability may compromise organ viability and demand quick intervention, sometimes rapid, early cannulation of vessels, so that organs may be salvaged. In this case report of an unstable donor with large retroperitoneal hematoma, a surgical approach is presented that has ...
Moreno P R - - 2001
Atherosclerosis is a systemic disease responsible for strokes, myocardial infarction, renal hypertension, and intermittent claudication. Acute coronary syndromes (unstable angina, acute myocardial infarction, and sudden cardiac death) are the major causes of morbidity and mortality in developed countries. These acute manifestations of heart disease share a common pathophysiologic phenomenon: coronary ...
Huang H - - 2001
BACKGROUND: Increased biomechanical stresses in the fibrous cap of atherosclerotic plaques contribute to plaque rupture and, consequently, to thrombosis and myocardial infarction. Thin fibrous caps and large lipid pools are important determinants of increased plaque stresses. Although coronary calcification is associated with worse cardiovascular prognosis, the relationship between atheroma calcification ...
Burke A P - - 2001
BACKGROUND: Subclinical episodes of plaque disruption followed by healing are considered a mechanism of increased plaque burden. Detailed pathological studies of healed ruptures, however, are lacking. METHODS AND RESULTS: We identified acute and healed ruptures from 142 men who died of sudden coronary death and performed morphometric measurements of plaque ...
Conti C R - - 2001
BACKGROUND: The clinical syndrome of unstable angina has multiple causes; different therapies therefore may be indicated in different patients. METHODS: Recent publications on unstable coronary artery disease were reviewed to identify pathophysiologic phenomena and concepts that can aid decision-making in the clinical management of patients with unstable coronary artery disease ...
Möllhoff T - - 2001
This review presents a brief overview about the role of regional anaesthesia in patients at risk for myocardial ischemia and/or infarction after cardiac and noncardiac surgical procedures. It includes pathophysiological insights in the problems of plaque rupture and the possible interactions by the use of regional anaesthesia. Special emphasis is ...
Telli H H - - 2001
The case of a 40-year-old man hospitalized for investigation of a doubtful diagnosis of acute coronary syndrome is reported herein. Two-dimensional echocardiography and angiography showed a cardiac cyst localized in the left ventricular apex in close proximity to the left anterior descending coronary artery. Surgery performed with the aid of ...
Wintermark M - - 2001
Blunt trauma patients with myocardial ruptures rarely survive long enough to reach a trauma center; however, for the survivors, prompt diagnosis and surgery are mandatory and save up to 80% of patients. Preoperative diagnosis of myocardial ruptures is assessed by echocardiography or, more rarely, by angiocardiography. We report two cases ...
Aronson D - - 2001
Serious adverse cardiovascular events, including myocardial infarction, sudden cardiac death, and stroke, frequently result from rupture of atherosclerotic plaques with superimposed thrombosis and exhibit a pronounced circadian rhythmicity, peaking in the morning hours. Two potentially synergistic mechanisms play a pathogenic role in the circadian variation of arterial thrombotic events. A ...
Collet e Silva F S - - 2001
Blunt rupture of the pericardium is a rare injury. Strangulated cardiac hernia following blunt trauma is one cause of reversible cardiac arrest. Traumatic pericardial tears usually have delayed diagnoses and carry high mortality rates (64%). Clinical signs mimic cardiac tamponade during the primary survey. We report here two cases of ...
Karmy-Jones R - - 2001
BACKGROUND: Choices for venous cannulation for left heart bypass, to assist repair of traumatic rupture of the thoracic aorta, are between the left atrial appendage and pulmonary veins. METHODS: A retrospective chart review was performed of patients who underwent operative repair of ruptured aorta. RESULTS: Over a 15-year period between ...
Anguera I - - 2001
Free-wall myocardial abscess perforation with hemopericardium and sudden death is an extremely infrequent complication of infective endocarditis (IE). We describe a case of Staphylococcus aureus-associated native aortic and tricuspid valve endocarditis complicated by a septic myocardial infarction and abscess formation of embolic origin, with fatal rupture into the pericardium. To ...
Tahalele P - - 2000
Acute cardiac rupture following acute myocardial infarction (AMI) carries a high mortality. The progression and rapid hemodinamic deterioration is the usual clinical course, with 50-80% mortality within the first week. The combination of septal perforation, impending cardiac rupture of left ventricular (LV) aneurysm and rupture of papillary muscle after AMI ...
Yang S W - - 2000
Orbital infarction syndrome is defined as ischemia of all intraorbital and intraocular structures. It is a rare disease caused by rich anastomotic vascularization of the orbit. It can occur secondary to different conditions, such as, acute perfusion failure, systemic vasculitis, orbital cellulitis and vasculitis. It results in orbital and ocular ...
Libby P - - 2000
Conventional concepts of the pathogenesis of acute coronary syndromes are changing. High-risk lesions are not necessarily the angiographically "tight" stenoses. Rather, unstable vulnerable lesions have large lipid cores and thin fibrous caps. Plaque instability relates closely to the development of inflammation within the intima. Acute coronary syndromes usually result from ...
Ito M - - 2000
We present a case of acute (blowout) left ventricular free wall rupture (LVFWR) that occurred on the third day after inferior myocardial infarction. Because electromechanical dissociation developed abruptly and pericardiocentesis was no effective, there was no time for establishing a cardiopulmonary bypass (CPB). Emergency thoracotomy and direct closure were successfully ...
Bard J W - - 2000
Rupture of the free wall of the left ventricle, a relatively common complication of acute myocardial infarction, is associated with a high mortality rate. The clinical course can vary from catastrophic, that is death, to incomplete rupture with the formation of a pseudoaneurysm. Subacute rupture is a condition that demands ...
Schoenhagen P - - 2000
Vulnerable coronary plaques are asymptomatic atherosclerotic lesions with the tendency to rupture. Plaque rupture is the initiating event in most acute coronary syndromes including sudden cardiac death, acute myocardial infarction, and unstable angina. Vulnerable plaques are commonly found in coronary arteries at autopsy but are virtually undetectable by standard diagnostic ...
Tanabe K - - 2000
We report a case in which 2-dimensional echocardiography established the diagnosis of a left ventricular subepicardial aneurysm that was followed by rupture and sudden death before surgery. Two-dimensional echocardiography is of great help in detecting this rare complication after myocardial infarction. Urgent surgical treatment is warranted for this condition.
Goldstein J A - - 2000
BACKGROUND: Acute myocardial infarction is believed to be caused by rupture of an unstable coronary-artery plaque that appears as a single lesion on angiography. However, plaque instability might be caused by pathophysiologic processes, such as inflammation, that exert adverse effects throughout the coronary vasculature and that therefore result in multiple ...
Koyama T - - 2000
A rare accumulation of serous ascites following traumatic cardiac rupture is reported for a 21-year-old man transferred to the emergency center of our hospital from a community hospital suffering from severe shock due to a motorcycle accident. Computed tomography scan showed moderate pericardial and intrapelvic fluid accumulation strongly suggesting cardiac ...
Menon V - - 2000
OBJECTIVES: We wished to assess the profile and outcomes of patients with ventricular septal rupture (VSR) in the setting of cardiogenic shock (CS) complicating acute myocardial infarction (MI). BACKGROUND: Cardiogenic shock is often seen with VSR complicating acute MI. Despite surgical therapy, mortality in such patients is high. METHODS: We ...
Slater J - - 2000
OBJECTIVES: We sought to compare the characteristics and outcomes of patients with acute myocardial infarction (MI) and cardiogenic shock (CS) caused by rupture of the ventricular free wall or tamponade versus shock from other causes. BACKGROUND: Free-wall rupture is a recognized cause of mortality in patients with acute MI. Some ...
Thanigaraj S - - 2000
We describe 3 patients with suspected subacute cardiac rupture in whom contrast-enhanced echocardiography played a key role in the diagnosis. In 2 patients, extravasation of the contrast material into the extracardiac space provided direct evidence of subacute cardiac rupture. Absence of this feature helped to exclude cardiac rupture with active ...
Higuchi M L - - 2000
This paper reports what is apparently the first observation of Mycoplasma pneumoniae in association with Chlamydia pneumoniae in thrombosed ruptured atheromas. We performed electron microscopy and in situ hybridization in specimens from three patients who died of acute myocardial infarction. These patients had typical symptoms of acute ischemic syndrome. Mycoplasmas ...
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