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- T_wave_alternans abstract "T wave alternans (TWA) is a periodic beat-to-beat variation in the amplitude or shape of the T wave in an electrocardiogram (ECG or EKG).TWA was first described in 1908. At that time, only large variations ("macroscopic" TWA) could be detected. Those large TWAs were associated with increased susceptibility to lethal ventricular tachycardias.Most modern references to TWA refer to microvolt T wave alternans (MTWA), a non-invasive heart test that can identify patients who are at increased risk of sudden cardiac death. It is most often used in patients who have had myocardial infarctions (heart attacks) or other heart damage to see if they are at high risk of developing a potentially lethal cardiac arrhythmia. Those who are found to be at high risk would therefore benefit from the placement of a defibrillator device which can stop an arrhythmia and save the patient's life.The TWA test uses an electrocardiogram (ECG) measurement of the heart's electrical conduction. The test looks for the presence of repolarization alternans (T-wave alternans), which is variation in the vector and amplitude of the T wave component of the EKG. The amount of variation is small, on the order of microvolts, so sensitive digital signal processing techniques are required to detect TWA.".
- T_wave_alternans thumbnail T-wave_alternans.png?width=300.
- T_wave_alternans wikiPageExternalLink www.cambridgeheart.com.
- T_wave_alternans wikiPageExternalLink T-Wave_Alternans_2027185_e.pdf.
- T_wave_alternans wikiPageExternalLink player.html?sid=070505LB01.6882.
- T_wave_alternans wikiPageExternalLink 567758_print.
- T_wave_alternans wikiPageExternalLink www.metrohealth.org.
- T_wave_alternans wikiPageExternalLink lectures.php.
- T_wave_alternans wikiPageID "3196147".
- T_wave_alternans wikiPageRevisionID "544202277".
- T_wave_alternans hasPhotoCollection T_wave_alternans.
- T_wave_alternans subject Category:Cardiac_dysrhythmia.
- T_wave_alternans comment "T wave alternans (TWA) is a periodic beat-to-beat variation in the amplitude or shape of the T wave in an electrocardiogram (ECG or EKG).TWA was first described in 1908. At that time, only large variations ("macroscopic" TWA) could be detected.".
- T_wave_alternans label "Alternanza dell'onda T".
- T_wave_alternans label "Mikrowoltowa zmienność załamka T".
- T_wave_alternans label "T wave alternans".
- T_wave_alternans sameAs Alternanza_dell'onda_T.
- T_wave_alternans sameAs Mikrowoltowa_zmienność_załamka_T.
- T_wave_alternans sameAs m.08yjbk.
- T_wave_alternans sameAs Q3613169.
- T_wave_alternans sameAs Q3613169.
- T_wave_alternans wasDerivedFrom T_wave_alternans?oldid=544202277.
- T_wave_alternans depiction T-wave_alternans.png.
- T_wave_alternans isPrimaryTopicOf T_wave_alternans.