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26 Possible Causes for Low-Voltage Electrocardiogram, Pulsus Alternans

  • Cardiomyopathy

    Cardiomyopathy can be acquired or inherited. “Acquired” means you aren’t born with the disease, but you develop it due to another disease, condition, or factor. “Inherited” means your parents passed the gene for the disease on to you. Researchers continue to look for the genetic links to cardiomyopathy and to[…][web.archive.org]

  • Myocardial Infarction

    Modern management of acute myocardial infarction is built on a clinical evidence base drawn from many studies undertaken over the past three decades. The evolution in clinical practice has substantially reduced mortality and morbidity associated with the condition. Key to this success is the effective integration of[…][ncbi.nlm.nih.gov]

  • Acute Myocardial Infarction

    We herein report the case of a 25-year-old Japanese woman with left-main-trunk acute myocardial infarction (LMT-AMI). She had cardiogenic shock, so emergency percutaneous intervention was performed. Intravascular ultrasound of LMT-AMI showed that the three-layered structure of the intima, tunica media, and[…][ncbi.nlm.nih.gov]

  • Acute Myocarditis

    Arrhythmias were associated with low voltages on the electrocardiogram (14 of 34, 41% vs 6 of 47, 13%; odds ratio [OR] 4.78, 95% confidence interval [CI] 1.60 to 14.31) and[ncbi.nlm.nih.gov] Radiography of the chest generally shows cardiomegally and the electrocardiogram may show arrhythmias, heart block, low voltage and T wave abnormalities.[heartviews.org] The 12-lead electrocardiogram (ECG) is used widely in the diagnosis of myocarditis despite low sensitivity. 5,19 The most common ECG changes are sinus tachycardia, S-T wave[jpma.org.pk]

  • Myocardial Fibrosis

    An electrocardiogram showed low voltage and a pseudo-infarctional pattern in leads V1 through V3.[ncbi.nlm.nih.gov]

  • Ischemic Cardiomyopathy

    Because of the shortage of donor hearts, 16 (33%) of 48 patients with ischemic cardiomyopathy died awaiting transplantation. Determining factors that predict effective coronary revascularization and identifying patients who may benefit from revascularization is crucial. From 1984 to 1990, 207 ischemic cardiomyopathy[…][ncbi.nlm.nih.gov]

  • Hemochromatosis-related Cardiomyopathy

    The hallmark of hemochromatosis is the deposition of iron in multiple tissue types, most notably the skin, liver, pancreas, thyroid, and heart. Definitive diagnosis of iron deposition generally requires invasive methods, such as direct tissue biopsy. We describe a 40 year-old woman with end-stage liver disease secondary[…][ncbi.nlm.nih.gov]

  • Dilated Cardiomyopathy

    […] and low voltage.[en.wikipedia.org] Pulsus alternans is an infrequent, complex pathophysiologic sign often associated with severe heart failure.[ncbi.nlm.nih.gov] The electrocardiogram often shows sinus tachycardia or atrial fibrillation, ventricular arrhythmias, left atrial enlargement, and sometimes intraventricular conduction defects[en.wikipedia.org]

  • Hydropericardium

    Sometimes, large pericardial effusions may exhibit electrical alternation of QRRS voltage or "pulsus alternans" reflecting free swing of the heart within the pericardial fluid[emedicine.medscape.com]

  • Cardiac Tamponade

    The electrocardiogram showed low-voltage QRS complex with electrical alternans.[ncbi.nlm.nih.gov] , which may also show low voltage QRS complexes, as well as general signs and symptoms of shock (such as fast heart rate, shortness of breath and decreasing level of consciousness[en.wikipedia.org] […] subacute/chronic cardiac tamponade. 5 Electrical alternans is present in less than 1/3 of patients with cardiac tamponade. 1 Pulsus paradoxus may occur in the setting of massive[emdocs.net]

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