Slide 1
... vasodilatory effects. This causes an increase in myocardial oxygen requirements and a decrease in systemic vascular resistance. Ischemia, myocardial infarction, or dysrhythmias may result. when suxamethonium is to be used in a patient with a ...
... vasodilatory effects. This causes an increase in myocardial oxygen requirements and a decrease in systemic vascular resistance. Ischemia, myocardial infarction, or dysrhythmias may result. when suxamethonium is to be used in a patient with a ...
7/09 Pericardial Constriction
... Published surgical mortality 5-15%. Perioperative mortality rate (within 30 days) was found to be 6.1%. progressive heart failure Sepsis renal failure respiratory failure arrhythmia ...
... Published surgical mortality 5-15%. Perioperative mortality rate (within 30 days) was found to be 6.1%. progressive heart failure Sepsis renal failure respiratory failure arrhythmia ...
Teaching Rounds in Cardiac Electrophysiology
... signals seen with each cardiac cycle should be considered an indication of viable (but diseased) myocardium that may represent an arrhythmogenic channel. Furthermore, considering all sites with any signal as viable can result in erroneous labeling of unexcitable scar as viable tissue. This particula ...
... signals seen with each cardiac cycle should be considered an indication of viable (but diseased) myocardium that may represent an arrhythmogenic channel. Furthermore, considering all sites with any signal as viable can result in erroneous labeling of unexcitable scar as viable tissue. This particula ...
Echocardiographic left ventricular dimensions
... Left ventricular 'relative wall thickness', determinedfrom the ratio between echocardiographic measurements of end-systolic wall thickness and cavity transverse dimension, was related to peak systolic intraventricular pressure in I5 normal subjects, in I5 patients with left ventricular volume or pre ...
... Left ventricular 'relative wall thickness', determinedfrom the ratio between echocardiographic measurements of end-systolic wall thickness and cavity transverse dimension, was related to peak systolic intraventricular pressure in I5 normal subjects, in I5 patients with left ventricular volume or pre ...
figure 4
... another technician if it will alleviate stress. Some dogs will tolerate the procedure much better if standing on the floor rather than being placed on a table. Use of sedatives or tranquilizers is not advisable for diagnostic recordings. If used, ...
... another technician if it will alleviate stress. Some dogs will tolerate the procedure much better if standing on the floor rather than being placed on a table. Use of sedatives or tranquilizers is not advisable for diagnostic recordings. If used, ...
Isorhythmic Dissociation
... from this intraoperative arrhythmia. The more serious causes of A-V dissociation include ischemic heart disease (e.g., acute inferior wall myocardial infarction), rheumatic fever, or a result of antiarrhythmic therapy with atropine, digitalis, quinidine, procainamide or the calcium channel blockers. ...
... from this intraoperative arrhythmia. The more serious causes of A-V dissociation include ischemic heart disease (e.g., acute inferior wall myocardial infarction), rheumatic fever, or a result of antiarrhythmic therapy with atropine, digitalis, quinidine, procainamide or the calcium channel blockers. ...
Etiology of Sudden Death in Sports
... 92% males, 76% Caucasian, 69% competitive) were referred to our cardiac pathology center. All subjects underwent detailed post-mortem evaluation, including histological analysis by an expert cardiac pathologist. Clinical information was obtained from referring coroners. RESULTS Sudden arrhythmic dea ...
... 92% males, 76% Caucasian, 69% competitive) were referred to our cardiac pathology center. All subjects underwent detailed post-mortem evaluation, including histological analysis by an expert cardiac pathologist. Clinical information was obtained from referring coroners. RESULTS Sudden arrhythmic dea ...
Defining Diastolic Dysfunction
... could be easily addressed by the addition of appropriate exclusion criteria. If strictly applied, their definition of probable diastolic heart failure would include individuals with acute mitral or aortic regurgitation or purely mechanical causes of diastolic heart failure (such as mitral stenosis o ...
... could be easily addressed by the addition of appropriate exclusion criteria. If strictly applied, their definition of probable diastolic heart failure would include individuals with acute mitral or aortic regurgitation or purely mechanical causes of diastolic heart failure (such as mitral stenosis o ...
Intermediate Cardiology
... Describe the conditions of pulseless electrical activity. Value and defend the urgency in rapid determination of and rapid intervention of patients in cardiac arrest. Identify the location of the structures listed in cognitive ...
... Describe the conditions of pulseless electrical activity. Value and defend the urgency in rapid determination of and rapid intervention of patients in cardiac arrest. Identify the location of the structures listed in cognitive ...
Electrophysiology and Anatomy of Embryonic Rabbit - AJP
... hypothesis (21, 30, 34), the mechanisms responsible are still not clear. Recent progress in imaging methodology has rejuvenated interest in the developmental mechanisms leading to the formation of substrates of arrhythmias. This is largely due to the development of novel imaging modalities, both ana ...
... hypothesis (21, 30, 34), the mechanisms responsible are still not clear. Recent progress in imaging methodology has rejuvenated interest in the developmental mechanisms leading to the formation of substrates of arrhythmias. This is largely due to the development of novel imaging modalities, both ana ...
PDF - Medical Journal of Australia
... amiodarone are the most commonly used in Australia (Box 2). These agents carry the risk of ventricular pro-arrhythmia (flecainide and sotalol) or excessive bradycardia (sotalol and amiodarone), which has been implicated in explaining why studies have failed to show any survival advantage from a rhyt ...
... amiodarone are the most commonly used in Australia (Box 2). These agents carry the risk of ventricular pro-arrhythmia (flecainide and sotalol) or excessive bradycardia (sotalol and amiodarone), which has been implicated in explaining why studies have failed to show any survival advantage from a rhyt ...
Full Text
... CRT in patients with either ischemic or nonischemic cardiomyopathy, heart failure with NYHA functional class III or IV despite maximal medical therapy, an LVEF ⱕ0.35, a QRS complex duration ⬎120 ms, or sinus rhythm.1– 6 Some trials suggest that CRT may be of benefit for other clinical scenarios in a ...
... CRT in patients with either ischemic or nonischemic cardiomyopathy, heart failure with NYHA functional class III or IV despite maximal medical therapy, an LVEF ⱕ0.35, a QRS complex duration ⬎120 ms, or sinus rhythm.1– 6 Some trials suggest that CRT may be of benefit for other clinical scenarios in a ...
Effect of Age, Sex, and Body Surface Area
... Drayer J, Gardin JM, Weber MA, Aronow WS. Changes in cardiac anatomy and function during therapy with alpha-methyldopa: an echocardiographic study. Curr Ther Res 1982;32:856-865 Drayer J, Gardin J, Weber M, Aronow WS. Cardiac muscle mass during vasodilation therapy of hypertension. Clin Pharmacol Th ...
... Drayer J, Gardin JM, Weber MA, Aronow WS. Changes in cardiac anatomy and function during therapy with alpha-methyldopa: an echocardiographic study. Curr Ther Res 1982;32:856-865 Drayer J, Gardin J, Weber M, Aronow WS. Cardiac muscle mass during vasodilation therapy of hypertension. Clin Pharmacol Th ...
ECG Interpretation
... Wide and bizarre appearance w/ large amplitude Irregular rhythm with normal HR Normal p waves that are not associated with the ectopic QRS. Compensatory pause Large T wave with direction opposite to QRS complex ...
... Wide and bizarre appearance w/ large amplitude Irregular rhythm with normal HR Normal p waves that are not associated with the ectopic QRS. Compensatory pause Large T wave with direction opposite to QRS complex ...
1 Sudden cardiac death in young athletes Causes, athlete`s heart
... Illicit drugs that cause coronary vasospasm, such as cocaine, have also been linked to sudden cardiac death (4). Interestingly, atherosclerotic coronary artery disease, the cause of more than 75% of sudden cardiac deaths in athletes over 40 years of age, accounts for only 2% to 3% of sudden deaths i ...
... Illicit drugs that cause coronary vasospasm, such as cocaine, have also been linked to sudden cardiac death (4). Interestingly, atherosclerotic coronary artery disease, the cause of more than 75% of sudden cardiac deaths in athletes over 40 years of age, accounts for only 2% to 3% of sudden deaths i ...
Multi-Ethnic Study of Atherosclerosis (MESA) remodelling in a
... gender and race/ethnicity; model 2 was further adjusted for systolic blood pressure, diabetes, HDL, LDL levels, smoking status, lipid-lowering and antihypertensive medication use. The results of both models showed the same trends but with diminished magnitude for the fully adjusted model. As there w ...
... gender and race/ethnicity; model 2 was further adjusted for systolic blood pressure, diabetes, HDL, LDL levels, smoking status, lipid-lowering and antihypertensive medication use. The results of both models showed the same trends but with diminished magnitude for the fully adjusted model. As there w ...
Medical Policy Microvolt T
... absence of MTWA carries a % risk of arrhythmic events during follow up. The authors concluded if the MTWA test is negative; the patient would be at low risk for arrhythmic events. If the MTWA test is positive, this would reinforce the decision for an implantable cardioverter defibrillator. Another r ...
... absence of MTWA carries a % risk of arrhythmic events during follow up. The authors concluded if the MTWA test is negative; the patient would be at low risk for arrhythmic events. If the MTWA test is positive, this would reinforce the decision for an implantable cardioverter defibrillator. Another r ...
Muscle metaboreflex increases ventricular performance in
... CO and SAP were indistinguishable from control experiments. Thus, with activation of the muscle metaboreflex in the normal animal, despite decreases in ventricular filling time due to the reflex tachycardia, SV remains unchanged due to the increase in ventricular performance, thereby allowing CO to ...
... CO and SAP were indistinguishable from control experiments. Thus, with activation of the muscle metaboreflex in the normal animal, despite decreases in ventricular filling time due to the reflex tachycardia, SV remains unchanged due to the increase in ventricular performance, thereby allowing CO to ...
Print - Circulation
... approach has not provided a full explanation of arrhythmogenesis. Indeed, there are reports of normal membrane potential characteristics in myocytes from myocardium with markedly abnormal electrophysiological properties and manifest arrhythmias.13-15 There has been increasing recognition that change ...
... approach has not provided a full explanation of arrhythmogenesis. Indeed, there are reports of normal membrane potential characteristics in myocytes from myocardium with markedly abnormal electrophysiological properties and manifest arrhythmias.13-15 There has been increasing recognition that change ...
function in uraemia: echocardiographic evidence ofa specific
... end systolic diameters, interventricular septum and posterior wall thicknesses, and systolic left atrium diameter. Aortic root diameter was measured with a parasternal long axis approach. Cardiac mass was measured by using the Deveraux equation.'8 Ejection fraction was measured with the modified Sim ...
... end systolic diameters, interventricular septum and posterior wall thicknesses, and systolic left atrium diameter. Aortic root diameter was measured with a parasternal long axis approach. Cardiac mass was measured by using the Deveraux equation.'8 Ejection fraction was measured with the modified Sim ...
Surgical removal of a large mobile left ventricular thrombus via left
... visualized through the mitral valve and was located at the apex connected to the ventricular wall only with a small stalk, which was divided at the base of the papillary muscle. The thrombus was extracted with gentle traction through the mitral valve without difficulty. The LV cavity was extensively ...
... visualized through the mitral valve and was located at the apex connected to the ventricular wall only with a small stalk, which was divided at the base of the papillary muscle. The thrombus was extracted with gentle traction through the mitral valve without difficulty. The LV cavity was extensively ...
Transfusion Related Acute Lung Injury
... because it links our emotions to the functioning of our hearts. In the short time since its recognition it has been known by many names including Transient Left Ventricular Apical Ballooning Syndrome, Human Stress Cardiomyopathy, Ampulla Cardiomyopathy and, more romantically, Broken Heart Syndrome 3 ...
... because it links our emotions to the functioning of our hearts. In the short time since its recognition it has been known by many names including Transient Left Ventricular Apical Ballooning Syndrome, Human Stress Cardiomyopathy, Ampulla Cardiomyopathy and, more romantically, Broken Heart Syndrome 3 ...
Ampulla Cardiomyopathy (Takotsubo Cardiomyopathy)-- - A Review
... The ampulla cardiomyopathy (Takotsubo Cardiomyopathy) also known as stress- induced cardiomyopathy (SICD), or broken heart syndrome, mimics acute coronary syndrome, typically characterized by transient regional systolic dysfunction involving the left ventricle apex and midventricle with hyperkinesis ...
... The ampulla cardiomyopathy (Takotsubo Cardiomyopathy) also known as stress- induced cardiomyopathy (SICD), or broken heart syndrome, mimics acute coronary syndrome, typically characterized by transient regional systolic dysfunction involving the left ventricle apex and midventricle with hyperkinesis ...
Relation between QT duration and maximal wall thickness in familial
... trend towards a linear increase in maximum wall thickness (p < 0.001 and p < 0.001, respectively), left atrial diameter (p < 0.001 and p < 0.01), and myocardial mass index (p < 0.001 and p < 0.001) from controls, through nonpenetrant subjects, to penetrant subjects. The maximum wall thickness was gr ...
... trend towards a linear increase in maximum wall thickness (p < 0.001 and p < 0.001, respectively), left atrial diameter (p < 0.001 and p < 0.01), and myocardial mass index (p < 0.001 and p < 0.001) from controls, through nonpenetrant subjects, to penetrant subjects. The maximum wall thickness was gr ...
Ventricular fibrillation
Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.