T Wave Abnormality: Causes & Reasons

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Possible Causes for T Wave Abnormality

Anthracycline-Induced Cardiomyopathy

It may reveal abnormalities in 20- 30% of patients, including nonspecific ST and T wave changes and decreased QRS voltage in cases with associated pericarditis, QT interval [symptoma.com]

Rett Syndrome

This may be due, in part, to heart irregularities, specifically a prolonged QT interval and T-wave abnormalities. [rarediseases.org]

Diffuse Intraventricular Block

T wave inversions and T wave flattening are sometimes present for no clear clinical reason, hence are referred to as “non-specific T wave abnormalities.” B. [clinicaladvisor.com]

These can be accompanied by supraventricular and ventricular rhythm disturbances and T-wave abnormalities. [en.ecgpedia.org]

The most common ECG abnormality in our study was nonspecific ST-T wave abnormalities. [journals.plos.org]

Basilar Artery Thrombosis with Occlusion of a Precerebral Artery

[…] st-t segment depression', 'electrocardiogram st-t segment elevation', 'electrocardiogram t wave abnormal', 'electrocardiogram t wave amplitude decreased', 'electrocardiogram [definedterm.com]

t wave amplitude increased', 'electrocardiogram t wave biphasic', 'electrocardiogram t wave inversion', 'electrocardiogram t wave peaked', 'electrocardiogram u wave inversion [definedterm.com]

', 'electrocardiogram st segment depression', 'electrocardiogram st segment elevation', 'electrocardiogram st-t change', 'electrocardiogram st-t segment abnormal', 'electrocardiogram [definedterm.com]

Long QT Syndrome 14

The signs of long QT syndrome are prolongation of the QT interval on the electrocardiogram and abnormalities of T wave morphology. [journals.lww.com]

LQTS is a cardiac electrophysiologic disorder, characterized by changes in the electrocardiogram (ECG), such as QT prolongation, T-wave abnormalities, accompanied by the ventricular [centogene.com]

If the 12 lead EKG is borderline, than often a treadmill stress test will reveal subtle T wave abnormalities and a 24 hour holter can calculate QTc averages. [epmonthly.com]

Loeffler Endocarditis

Mitral and tricuspid incompetence and regurgitation, murmurs of mitral stenosis, and electrocardiographic S-T Segment and T Wave abnormalities are the most common manifestations [whonamedit.com]

C reactive protein, erythrocyte sedimentation rate ) and cardiac injury (e.g. creatine kinase, troponins ); and abnormal electrocardiograms ( mostly ST segment - T wave abnormalities [en.wikipedia.org]

Long QT Syndrome 10

T-wave abnormalities - notching, alternation in amplitude A screening EKG alone is usually insufficient to diagnose at-risk patients. [pedclerk.bsd.uchicago.edu]

If the 12 lead EKG is borderline, than often a treadmill stress test will reveal subtle T wave abnormalities and a 24 hour holter can calculate QTc averages. [epmonthly.com]

[…] pathophysiology, and general clinical aspects, as they relate to a laboratory test Long QT syndrome (LQTS) is a genetic cardiac disorder characterized by QT prolongation and T-wave [mayomedicallaboratories.com]

Biventricular Hypertrophy

The thickened LV wall leads to prolonged depolarisation (increased R wave peak time) and delayed repolarisation (ST and T-wave abnormalities) in the lateral leads. [litfl.com]

RVH is characterized by the following abnormalities: 1. Abnormality of QRS complex 2. Abnormality of S-T segment and T wave 3. Abnormality of QRS axis 4. [yourarticlelibrary.com]

Minor ST-T wave abnormalities are also present. [frca.co.uk]

Woodhouse-Sakati Syndrome

Additional manifestations include sensorineural hearing loss, seizures, T-wave abnormalities on ECG, and polyneuropathy. [genome.jp]

All the patients have a distinctive facial appearance, hypogonadism, sparse or absent hair, diabetes mellitus, mental retardation, mild deafness, and variable S-T and T wave [doi.org]

abnormalities on the electrocardiograph. [doi.org]

Right Atrial Hypertrophy

ST and T-wave abnormalities 4. LAE & Left axis deviation (common but not needed to call LVH) [unm.edu]

RVH is characterized by the following abnormalities: 1. Abnormality of QRS complex 2. Abnormality of S-T segment and T wave 3. Abnormality of QRS axis 4. [yourarticlelibrary.com]

wave changes Juvenile T-wave pattern QTc ≥ 0.45 seconds by computer, but normal by hand calculation Borderline QTc of 0.44 to 0.45 seconds B (abnormal readings that have a [aafp.org]

Long QT Syndrome 5

[…] alternans) or other evidence of being at high risk (eg, long sinus pauses followed by abnormal T-wave morphologies), despite β-blockade and LCSD. [ahajournals.org]

Quantitative analysis of T wave abnormalities and their prognostic implications in the idiopathic long QT syndrome.J Am Coll Cardiol. 1994; 23:296–301.CrossrefMedlineGoogle [ahajournals.org]

Electrical alternation of the T-wave: clinical and experimental evidence of its relationship with the sympathetic nervous system and with the long Q-T syndrome.Am Heart J. [ahajournals.org]

Long QT Syndrome 13

If the 12 lead EKG is borderline, than often a treadmill stress test will reveal subtle T wave abnormalities and a 24 hour holter can calculate QTc averages. [epmonthly.com]

Left Anterior Fascicular Block

[…] code for "ST and/or T wave abnormalities suggesting myocardial ischemia." [ecgsource.com]

If the ST-T waves are in the same direction as the terminal QRS forces, they should be labeled primary ST-T wave abnormalities. [ecg.utah.edu]

However, their value is limited for the reason above, but for approximately 20 to 30% of patients presenting with MI, a T wave abnormality is the only ECG sign.The T wave [vdocuments.mx]

Lateral Myocardial Infarction

Waves, Nonspecific ST and/or T Wave Abnormalities, ST and/or T Wave Abnormalities Suggesting Myocardial Ischemia, ST and/or T Wave Abnormalities Suggesting Myocardial Injury [play.google.com]

Residual ST-T wave abnormalities are also evident. [ecg.utah.edu]

Biphasic/inverted T waves in V1-5. Poor R wave progression (R wave height < 3mm in V3). Abnormal Q waves and T-wave inversion in I and aVL. [lifeinthefastlane.com]

Dopamine Beta-Hydroxylase Deficiency

Another symptom is hypoglycemia which is thought to be caused by adrenomedullary failure and the T-wave abnormalities from failure of noradrenergic control. [loinc.org]

In looking at the cardiovascular system, a loss of noradrenergic control is seen as T-wave abnormalities on electrocardiogram. [en.wikipedia.org]

Athletic Heart Syndrome

Tall, peaked - related to early repolarization Inverted - related to QRS voltage, LV mass, septal and posterior wall thickness What are common T-wave abnormalities in athlete [quizlet.com]

If HMC is suspected, an ECG may demonstrate ST segment and T wave abnormalities and a prominent Q wave. The investigation of choice, however, is an Echocardiogram. [sportsinjuryclinic.net]

The T wave abnormality is due to left ventricular hypertrophy. [rjmatthewsmd.com]

Long QT Syndrome

BACKGROUND: Congenital long-QT syndrome (LQTS) is a potentially lethal cardiac electrophysiologic disorder characterized by QT interval prolongation and T-wave abnormalities [ncbi.nlm.nih.gov]

Long QT syndrome (LQTS) is a cardiac electrophysiologic disorder, characterized by QT prolongation and T-wave abnormalities on the ECG and the ventricular tachycardia torsade [flybase.org]

T-wave abnormalities - notching, alternation in amplitude A screening EKG alone is usually insufficient to diagnose at-risk patients. [pedclerk.bsd.uchicago.edu]

Left Posterior Fascicular Block

If the ST-T waves are in the same direction as the terminal QRS forces, they should be labeled primary ST-T wave abnormalities. [ecg.utah.edu]

Because the ST-T wave changes with LBBB are generated by abnormalities in conduction, they are called secondary T wave abnormalities ; as will be discussed below, ST-T wave [angelfire.com]

Here you can see abnormal (diagnostic) ST elevation and an upright T-wave in V2-V3, with diagnostic ST elevation in V4-V6 and in I and aVL, and with reciprocal ST depression [hqmeded-ecg.blogspot.com]

Takotsubo Cardiomyopathy

wave inversions. [icd9data.com]

Other findings include QT interval prolongation, T wave inversion, abnormal Q waves, and non-specific ST abnormalities. [ncbi.nlm.nih.gov]

ST-segment elevation was reported in 81.6% of the patients, T wave abnormalities in 64.3%, and Q waves in 31.8%. [academic.oup.com]

Malouf Syndrome

The electrocardiogram showed sinus tachycardia (heart rate 120/min) with normal axis deviation and nonspecific ST-T wave abnormalities. [hindawi.com]

Long QT Syndrome 6

If the 12 lead EKG is borderline, than often a treadmill stress test will reveal subtle T wave abnormalities and a 24 hour holter can calculate QTc averages. [epmonthly.com]

wave abnormalities on the ECG and by the type of trigger for syncope or sudden death. 12 There is considerable overlap between the phenotypes; however, syncope or sudden death [adc.bmj.com]

Right Ventricular Hypertrophy

The fact that the ST-depression and T-wave inversion is “pouty-lipped” (downwardly concave) and the degree of the secondary ST-T wave abnormality is proportional to the size [ems12lead.com]

T-wave abnormalities, ST- or T-wave abnormalities, evidence of LVH, bundle branch blocks, and left axis deviation (61). [onlinejacc.org]

[…] and peaked T-waves inferiorly) ST depression and T wave inversion in leads V2 through V6. [symptoma.com]

Conduction Disorder of the Heart

If the ST-T waves are in the same direction as the terminal QRS forces, they should be labeled primary ST-T wave abnormalities. [ecg.utah.edu]

; 3.Ab- normality of QRS complex and cardiac hypertrophy (42.2%) ; 4 .Abnormality of S—T segment and T wave ( 65.0% ) ;5.The lengthening of Q—Tinterval ( 3.5% ) .At the [dict.cnki.net]

Left Ventricular Hypertrophy

In the instance of the chest pain patient demonstrating ST segment/T wave abnormality, the correct electrocardiographic diagnosis must be made not only to offer appropriate [ncbi.nlm.nih.gov]

The most pronounced ST/T wave abnormality is found in lead V2. [ems12lead.com]

The thickened LV wall leads to prolonged depolarisation (increased R wave peak time) and delayed repolarisation (ST and T-wave abnormalities) in the lateral leads. [lifeinthefastlane.com]

Bifascicular Block

If the ST-T waves are in the same direction as the terminal QRS forces, they should be labeled primary ST-T wave abnormalities. [web.archive.org]

If the ST-T waves are in the same direction as the terminal QRS forces, they should be labeled primary ST-T wave abnormalities Left Bundle Branch Block (LBBB) "Complete" LBBB [ecg.utah.edu]

Nonspecific T wave abnormalities, no significant ST depression or elevation. Artifact consistent with respiratory variation. [cmcedmasters.com]

Secondary Cardiomyopathy

Electrocardiogram on admission showed sinus tachycardia; left atrial enlargement, left ventricular hypertrophy and nonspecific T wave abnormalities over the anterior wall [bmcresnotes.biomedcentral.com]

The surface electrocardiogram may reveal a short P-R interval, atrioventricular block, and ST-segment and T wave abnormalities. [textbookofcardiology.org]

Cardiomegaly may be suspected on chest radiography, and the electrocardiogram shows non-specific abnormalities of the ST-segment and T-waves. [textbookofcardiology.org]

Bacterial Myocarditis

ECG May reveal an atrioventricular or bundle branch block, arrhythmias of a ventricular or supraventricular origin, ST or T wave abnormalities and irregular Q waves. [symptoma.com]

[…] height, abnormal Q waves, ST-T segment changes or low voltage. [intechopen.com]

ST depression, negative T waves Possible ST elevations with a concave ascending S wave → indicates perimyocarditis Heart block : right bundle branch block, complete heart [amboss.com]

Atrial Bigeminy

Looking at the rhythm strips at the bottom of the EKG, the T wave is abnormal with a notched appearance. [mdmag.com]

Obviously, the ST and T wave are very abnormal, with huge ST elevation due to LAD occlusion. [hqmeded-ecg.blogspot.com]

The notches in the T waves are non-conducted premature atrial contractions, or atrial premature beats (APBs) in a pattern of atrial bigeminy, alternating with normal sinus [mdmag.com]

Left Bundle Branch Block

Cardiac memory is another physiologic phenomenon in which T-wave abnormalities occur in the absence of ischemia. [ncbi.nlm.nih.gov]

Additionally, secondary ST-T wave abnormalities that occur in LBBB obscure the recognition of injury currents in ischemia and infarction. [acc.org]

There were diffuse negative T waves in the inferior and anterolateral leads that were concordant with the QRS complexes. [ncbi.nlm.nih.gov]

Cardiac Hypertrophy

ST and T-wave abnormalities 4. LAE & Left axis deviation (common but not needed to call LVH) [unm.edu]

The thickened LV wall leads to prolonged depolarisation (increased R wave peak time) and delayed repolarisation (ST and T-wave abnormalities) in the lateral leads. [lifeinthefastlane.com]

This results in increased R wave amplitude in the left-sided ECG leads (I, aVL and V4-6) and increased S wave depth in the right-sided leads (III, aVR, V1-3). [lifeinthefastlane.com]