Overexpression of microRNA-1 impairs cardiac
... down-regulation of miR-1 appears to produce cardioprotective outcomes.21 – 23 These studies suggested the importance to elucidate the effects of up-regulation of miR-1 on adult heart. However, despite the fact that miR-1 has been found up-regulated in diverse cardiac conditions, including those asso ...
... down-regulation of miR-1 appears to produce cardioprotective outcomes.21 – 23 These studies suggested the importance to elucidate the effects of up-regulation of miR-1 on adult heart. However, despite the fact that miR-1 has been found up-regulated in diverse cardiac conditions, including those asso ...
Temporary Pacemakers - University of California, San Diego
... Pacemaker not sensitive enough to patient’s intrinsic electrical activity (mV) Insufficient myocardial voltage Dislodged, loose, fibrotic, or fractured electrode Electrolyte abnormalities Low battery Malfunction of pacemaker or bridging cable ...
... Pacemaker not sensitive enough to patient’s intrinsic electrical activity (mV) Insufficient myocardial voltage Dislodged, loose, fibrotic, or fractured electrode Electrolyte abnormalities Low battery Malfunction of pacemaker or bridging cable ...
Nonlinear Phonocardiographic Signal Processing Christer Ahlstr¨ om
... from murmurs caused by AS or MI in patients with probable valve disease. Finally, novel work related to very accurate localization of the first heart sound by means of ECG-gated ensemble averaging was conducted. In general, the presented nonlinear processing techniques have shown considerably improv ...
... from murmurs caused by AS or MI in patients with probable valve disease. Finally, novel work related to very accurate localization of the first heart sound by means of ECG-gated ensemble averaging was conducted. In general, the presented nonlinear processing techniques have shown considerably improv ...
Temporary Pacemakers-2hr
... Pacemaker not sensitive enough to patient’s intrinsic electrical activity (mV) Insufficient myocardial voltage Dislodged, loose, fibrotic, or fractured electrode Electrolyte abnormalities Low battery Malfunction of pacemaker or bridging cable ...
... Pacemaker not sensitive enough to patient’s intrinsic electrical activity (mV) Insufficient myocardial voltage Dislodged, loose, fibrotic, or fractured electrode Electrolyte abnormalities Low battery Malfunction of pacemaker or bridging cable ...
PDF
... pattern with a delay of 2–3 ms and ended at around 7.2 ms (n ¼ 8). Furthermore, RT20 started before final activation of the RV base (5.4 + 0.3 vs. 6.7 + 0.4 ms P , 0.05, respectively). The potential map shows that 5 ms after the onset of the QRS, an electrical vector was generated that was directed ...
... pattern with a delay of 2–3 ms and ended at around 7.2 ms (n ¼ 8). Furthermore, RT20 started before final activation of the RV base (5.4 + 0.3 vs. 6.7 + 0.4 ms P , 0.05, respectively). The potential map shows that 5 ms after the onset of the QRS, an electrical vector was generated that was directed ...
G. Secondary Prevention of Stroke Educational Supplement
... found to effectively reduce stroke, myocardial infarction, and all vascular events outcomes by 40-45% (Rashid et al. 2003). An example of the benefit of combined therapy over single therapy is the PROGRESS trial (2001) which was a randomized controlled trial in which 6105 individuals were randomized ...
... found to effectively reduce stroke, myocardial infarction, and all vascular events outcomes by 40-45% (Rashid et al. 2003). An example of the benefit of combined therapy over single therapy is the PROGRESS trial (2001) which was a randomized controlled trial in which 6105 individuals were randomized ...
Myofiber prestretch magnitude determines regional systolic function
... both the longitudinal and circumferential distribution of the electrodes. Briefly, dog-specific polar grids were defined from 3D polar coordinates of the 128 epicardial electrodes, obtained with a 3D digitization arm (Faro Instruments) in the postmortem heart. Local electrical activation time (ATloc ...
... both the longitudinal and circumferential distribution of the electrodes. Briefly, dog-specific polar grids were defined from 3D polar coordinates of the 128 epicardial electrodes, obtained with a 3D digitization arm (Faro Instruments) in the postmortem heart. Local electrical activation time (ATloc ...
A Guide For Patients: Patent Foramen Ovale
... The heart remains beating and the procedure is often done with the patient lightly sedated and using local anesthesia over the leg vein. PFO closure involves the insertion of a septal occluder, or cardiac implant in the PFO to reduce or eliminate shunting. The device is designed specifically for sep ...
... The heart remains beating and the procedure is often done with the patient lightly sedated and using local anesthesia over the leg vein. PFO closure involves the insertion of a septal occluder, or cardiac implant in the PFO to reduce or eliminate shunting. The device is designed specifically for sep ...
Nitroglycerin in 5% Dextrose Injection, USP
... patients receiving intravenous nitroglycerin, concomitant heparin therapy should be guided by frequent measurement of the activated partial thromboplastin time. ...
... patients receiving intravenous nitroglycerin, concomitant heparin therapy should be guided by frequent measurement of the activated partial thromboplastin time. ...
Effect of Altered Activation Sequence on Epicardial QRST Area and
... Background. We investigated the effects of activation sequence on cardiac surface QRST areas and refractory periods in experiments on dogs. Meth.ods and Results. Right and left ventricular pacings were performed, and the pacing site was altered every 6 minutes. After 4 minutes of a given pacing, 54 ...
... Background. We investigated the effects of activation sequence on cardiac surface QRST areas and refractory periods in experiments on dogs. Meth.ods and Results. Right and left ventricular pacings were performed, and the pacing site was altered every 6 minutes. After 4 minutes of a given pacing, 54 ...
HRS/ACC/AHA Expert Consensus Statement on
... such as “is recommended,” “can be useful,” “can be con- ...
... such as “is recommended,” “can be useful,” “can be con- ...
Pericardial Disease
... Fungal pericarditis is rare. Typically, pericardial involvement occurs as a consequence of systemic fungal infections, such as disseminated histoplasmosis or coccidiomycosis. In the case of histoplasmosis, up to 6% of patients with disseminated disease are found to have pericardial involvement. In s ...
... Fungal pericarditis is rare. Typically, pericardial involvement occurs as a consequence of systemic fungal infections, such as disseminated histoplasmosis or coccidiomycosis. In the case of histoplasmosis, up to 6% of patients with disseminated disease are found to have pericardial involvement. In s ...
Arrhythmia/Electrophysiology
... with implantable cardioverter-defibrillators, and it is controversial whether nonarrhythmogenic syncope is associated with increased mortality. Methods and Results—The Multicenter Automatic Defibrillator Implantation Trial–Reduce Inappropriate Therapy (MADIT-RIT) randomized 1500 patients to 3 differ ...
... with implantable cardioverter-defibrillators, and it is controversial whether nonarrhythmogenic syncope is associated with increased mortality. Methods and Results—The Multicenter Automatic Defibrillator Implantation Trial–Reduce Inappropriate Therapy (MADIT-RIT) randomized 1500 patients to 3 differ ...
A manual for pacemaker patients
... Any heart rate that is too slow to support the person’s activity. Another term for bradycardia is bradyarrhythmia. People with bradycardia may feel overly tired, be short of breath, or have other symptoms because the heart does not beat fast enough to pump enough blood to meet their needs. ...
... Any heart rate that is too slow to support the person’s activity. Another term for bradycardia is bradyarrhythmia. People with bradycardia may feel overly tired, be short of breath, or have other symptoms because the heart does not beat fast enough to pump enough blood to meet their needs. ...
Increased Phosphorylation of Ca2+ Handling Proteins as a - J
... Background: Because fatal arrhythmia is an important cause of death in patients with myocarditis, we investigated the proarrhythmic mechanisms of experimental autoimmune myocarditis. Methods and Results: Myocarditis was induced by injection of 2 mg porcine cardiac myosin into the footpads of adult ...
... Background: Because fatal arrhythmia is an important cause of death in patients with myocarditis, we investigated the proarrhythmic mechanisms of experimental autoimmune myocarditis. Methods and Results: Myocarditis was induced by injection of 2 mg porcine cardiac myosin into the footpads of adult ...
1 Abstract Introduction: Several cases of Morgagni hernia have
... mass and bowel loops within the chest can be seen on a CT scan.5, 9 Furthermore, magnetic resonance imaging is ...
... mass and bowel loops within the chest can be seen on a CT scan.5, 9 Furthermore, magnetic resonance imaging is ...
Syncope: Diagnosis and Evidence
... an arrhythmia as the etiology of a syncopal event. Longerterm monitoring may also be of benefit in patients with recurrent syncope of unknown etiology. History, physical examination, and ECG are often sufficient to identify the presence of heart disease [9]. Only when the presence or absence of unde ...
... an arrhythmia as the etiology of a syncopal event. Longerterm monitoring may also be of benefit in patients with recurrent syncope of unknown etiology. History, physical examination, and ECG are often sufficient to identify the presence of heart disease [9]. Only when the presence or absence of unde ...
Emergency echocardiography - European Society of Cardiology
... versatile and cost-effective imaging technique to assess patients with unstable cardiovascular diseases. Mobility and relative low cost of echocardiographic machines, including hand-held devices, allow their use virtually everywhere.1 – 4 In addition, in expert hands, echocardiography may provide in ...
... versatile and cost-effective imaging technique to assess patients with unstable cardiovascular diseases. Mobility and relative low cost of echocardiographic machines, including hand-held devices, allow their use virtually everywhere.1 – 4 In addition, in expert hands, echocardiography may provide in ...
Defibrillators - Samuel D Hodge Jr
... AED is not designed for a person who has flat-lined. 51 That victim can only be resuscitated by CPR and cardiac drugs.52 Studies have shown that access to AEDs improves the odds of surviving a cardiac arrhythmia outside of the hospital.53 One set of researchers ascertained that almost 70% of those w ...
... AED is not designed for a person who has flat-lined. 51 That victim can only be resuscitated by CPR and cardiac drugs.52 Studies have shown that access to AEDs improves the odds of surviving a cardiac arrhythmia outside of the hospital.53 One set of researchers ascertained that almost 70% of those w ...
Emergency echocardiography: the European Association of
... versatile and cost-effective imaging technique to assess patients with unstable cardiovascular diseases. Mobility and relative low cost of echocardiographic machines, including hand-held devices, allow their use virtually everywhere.1 – 4 In addition, in expert hands, echocardiography may provide in ...
... versatile and cost-effective imaging technique to assess patients with unstable cardiovascular diseases. Mobility and relative low cost of echocardiographic machines, including hand-held devices, allow their use virtually everywhere.1 – 4 In addition, in expert hands, echocardiography may provide in ...
Contractile properties of thermally acclimated trout heart
... tasks in the pumping work of the vertebrate heart, which muscle tissue. Similar differences also existed between the are reflected in their contractile properties. Although atrial tissues of cold-acclimated (CA, 4 °C) and warm-acclimated contraction is assumed to have an important role in the (WA, 1 ...
... tasks in the pumping work of the vertebrate heart, which muscle tissue. Similar differences also existed between the are reflected in their contractile properties. Although atrial tissues of cold-acclimated (CA, 4 °C) and warm-acclimated contraction is assumed to have an important role in the (WA, 1 ...
Systemic venous drainage: can we help Newton? - Area-c54
... The function of the venous cannula(s) is to provide an unobstructed passage from the wide, low-resistance, collapsible, systemic veins, to the downstream narrower, stiff, artificial system of the tubing of the cardiopulmonary bypass circuit. In order to provide the optimal venous drainage the cannul ...
... The function of the venous cannula(s) is to provide an unobstructed passage from the wide, low-resistance, collapsible, systemic veins, to the downstream narrower, stiff, artificial system of the tubing of the cardiopulmonary bypass circuit. In order to provide the optimal venous drainage the cannul ...
product monograph nitroglycerin in 5
... Intravenous nitroglycerin reduced central venous pressure (CVP), right arterial pressure (RAP), pulmonary arterial pressure (PAP), pulmonary-capillary wedge pressure (PCWP), pulmonary vascular resistance (PVR), and systemic vascular resistance (SVR). When these parameters were elevated, reducing th ...
... Intravenous nitroglycerin reduced central venous pressure (CVP), right arterial pressure (RAP), pulmonary arterial pressure (PAP), pulmonary-capillary wedge pressure (PCWP), pulmonary vascular resistance (PVR), and systemic vascular resistance (SVR). When these parameters were elevated, reducing th ...
Myocardial infarction
Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.