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The primary objective of this study is to characterize the morphological patterns of high frequency QRS components (HFQRS) in patients with acute myocardial infarction (AMI), including STEMI and NSTEMI, compared to patients without AMI.
Chest pain is one of the leading reasons of hospital emergency department (ED) visits worldwide. In the US, approximately 6 million people annually undergo evaluation in the ED for acute chest pain. Despite the wealth of knowledge available about acute coronary syndrome (ACS), this condition continues to be among the most difficult to predict or diagnose. Misdiagnoses may lead to discharge of patients with ACS, who should have been admitted as well as costly unnecessary hospitalizations of patients who do not have ACS.
More than 2/3 of the patients with ACS have unstable angina (UA) or non-ST-elevation myocardial infarction (NSTEMI). Conventional ECG has low sensitivity of less than 50% in diagnosing these conditions. As the initial ECG in the ED is often non-diagnostic in ACS patients, the diagnosis of ST-elevation myocardial infarction (STEMI) during its early stages may also be difficult.
Analysis of high-frequency QRS components (HFQRS), which quantifies changes in the depolarization phase of the cardiac cycle, has been previously reported to be a sensitive method for detection of demand ischemia. Preliminary studies have shown that HFQRS-derived indices can also identify supply ischemia caused by prolonged balloon occlusion, and transient ischemic episodes in patients with chest pain.
Observational Model: Case Control, Time Perspective: Prospective
Soroka University Medical Center
Not yet recruiting
BSP Biological Signal Processing Ltd.
Published on BioPortfolio: 2014-07-24T14:00:53-0400
Long-term beta-blocker therapy has not been investigated in contemporary randomized clinical trials in patients with myocardial infarction and normal heart function. The aim of this study ...
ST-elevation myocardial infarction is a major cause of morbidity and mortality worldwide. ST-elevation myocardial infarction damages the regional myocardium that undergoes ischemia and nec...
This is a multicenter retrospective observational study with STEMI (ST Elevation Myocardial Infarction) patients who have been treated in the northern Galician Hospitals. The study tries t...
Prospective cohort evaluating patients in the State of Santa Catarina (Brazil) with the diagnosis of the first acute myocardial infarction from July 2016 until December 2020.
Recent clinical studies have shown that systemic therapeutic hypothermia improving the outcomes in patients with ST segment elevated myocardial infarction (STEMI) received primary percutan...
In recent decades, guideline-based therapy of myocardial infarction has led to a considerable reduction in myocardial infarction mortality. However, there are relevant differences in acute care and...
Little information is available on how primary and comorbid acute myocardial infarction contribute to the mortality burden of acute myocardial infarction, the share of these deaths that occur during o...
Background -Type 2 myocardial infarction and myocardial injury are common in clinical practice, but long-term consequences are uncertain. We aimed to define long-term outcomes and explore risk stratif...
After the introduction of the universal definition of myocardial infarction, the incidence and diagnosis of type 2 myocardial infarction have risen dramatically, yet there are no clear guidelines on c...
The role of NS-398 in Snail pathway of myocardial cells in mice after myocardial infarction and its effect on myocardial fibrosis were investigated in this study.
MYOCARDIAL INFARCTION in which the anterior wall of the heart is involved. Anterior wall myocardial infarction is often caused by occlusion of the left anterior descending coronary artery. It can be categorized as anteroseptal or anterolateral wall myocardial infarction.
A myocardial infarction that does not produce elevations in the ST segments of the ELECTROCARDIOGRAM. ST segment elevation of the ECG is often used in determining the treatment protocol (see also ST Elevation Myocardial Infarction).
A clinical syndrome defined by MYOCARDIAL ISCHEMIA symptoms; persistent elevation in the ST segments of the ELECTROCARDIOGRAM; and release of BIOMARKERS of myocardial NECROSIS (e.g., elevated TROPONIN levels). ST segment elevation in the ECG is often used in determining the treatment protocol (see also NON-ST ELEVATION MYOCARDIAL INFARCTION).
MYOCARDIAL INFARCTION in which the inferior wall of the heart is involved. It is often caused by occlusion of the right coronary artery.
Laceration or tearing of cardiac tissues appearing after MYOCARDIAL INFARCTION.
An anesthesiologist (US English) or anaesthetist (British English) is a physician trained in anesthesia and perioperative medicine. Anesthesiologists are physicians who provide medical care to patients in a wide variety of (usually acute) situations. ...
Pain is defined by the International Association for the Study of Pain as “an unpleasant sensory and emotional experience associated with actual or potential tissue damage or described in terms of such damage”. Some illnesses can be excruci...
Acute Coronary Syndromes ACS
Acute Coronary Syndromes (ACS) is an umbrella term for situations where the blood supplied to the heart muscle is suddenly blocked. Treatment for acute coronary syndrome includes medicines and a procedure known as angioplasty, during which doctors inflat...