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133 Possible Causes for T Wave Inversion, Wide QRS Complex

  • Acute Myocardial Infarction

    Features may initially be normal but abnormalities include new ST-segment elevation; initially peaked T waves and then T-wave inversion; new Q waves; new conduction defects[] Note the AV dissociation in the rhythm strip in lead V1 at the bottom; this is diagnostic for VT in the setting of a wide QRS complex tachycardia, but not always seen.[] This is because LBBB alone can produce signs that may be confused with those of infarction: deep QS waves in the right chest leads and ST depression and T wave inversion in[]

  • Myocardial Infarction

    Electrocardiography showed a sinus rhythm with Q-wave formation in the inferior wall leads (II, III, aVF), T-wave inversion in the same leads, and borderline QT prolongation[] ST segment depression and T wave inversion are associated with subendocardial infarction.[] 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.[]

  • Electrolyte Imbalance

    T-waves become wider with lower amplitude. T-wave inversion may occur in severe hypokalaemia.[] Patients with left ventricular hypertrophy may instead display normalization of secondary T-wave inversions (lead V5, V6, aVL, I).[] ST segment depression develops and may, along with T-wave inversions, simulate ischaemia. P-wave amplitude, P-wave duration and PR interval may all increase.[]

  • Arrhythmogenic Right Ventricular Dysplasia

    The patient had T-wave inversion in the inferior ECG leads and no history of arrhythmias.[] The patient consulted for mid-chest discomfort, dizziness, and palpitations; the electrocardiogram showed regular, monomonphic wide QRS complex tachycardia and a left bundle-banch[] complex (V1-3) prominent, broad S wave with slurred upstroke inversion of T waves (V1-3) ventricular tachydysrhythmias usually regular, wide (QRS duration 0.12) complex rhythms[]

  • Right Bundle Branch Block

    Typical RSR’ pattern (‘M’-shaped QRS) in V1 Wide slurred S wave in lead I Typical pattern of T-wave inversion in V1-3 with RBBB Causes of Right Bundle Branch Block Right ventricular[] These are the criteria for multifocal atrial tachycardia MAT, also known as chaotic atrial rhythm,1 chaotic atrial tachycardia,2 and chaotic atrial mechanism.3 The wide QRS[] In a type I block with wide QRS complex ( 0.12sec), the block can be in the His-Purkinje system in 60-70% of the cases.[]

  • Diffuse Intraventricular Block

    These T wave inversions are called “secondary” T wave changes, as in secondary to the conduction delay.[] Note that other causes of wide QRS complex must always be considered.[] Introduction In general ventricular tachycardias have wide QRS complexes.[]

  • Left Bundle Branch Block

    The precordial leads in these patients will demonstrate alarmingly deep, symmetrical T-wave inversions.[] However, in some patients, LBBB may vary with heart rate, and during episodes of AF in LBBB, aberrant ventricular conduction, or wide QRS complex tachycardia (Ashman beats[] A 12-lead ECG in the ER showed sinus tachycardia at 118 beats/min, wide QRS complexes, peaked T waves and left bundle branch block-like pattern.[]

  • Toxic Myocarditis

    Thereafter, T-wave inversion typically ensues. The T-wave inversion may be discrete and lasts for one month.[] […] changes, low voltage QRS complexes, axis deviation and ventricular hypertrophy. 2 Infarction patterns, atrial abnormalities and various degrees of heart block may also be[] Diffuse T wave inversion. Ventricular arrhythmias. AV conduction defects.[]

  • Bifascicular Block

    The T wave inversions seen in the upright leads are common with RBBB, and are usually considered normal in this setting.[] However, S1Q3T3 is also present along with anterior T-wave inversions. The patient was complaining of shortness of breath.[] . 3) Secondary ST depression and possibly T wave inversion may be seen in the left precordial leads (and in leads I and aVL). 4) ST segment elevation and abnormally tall T[]

  • Ventricular Bigeminy

    Although this 15-lead EKG shows only non-specific T-wave inversion in V4R, the posterior leads V7 and V8 demonstrate subtle ST elevation, thus confirming what can be suspected[] The signal that originated in the ventricle can be distinguished from a normal signal by its wide QRS complex and lack of a P wave.[] wave are directed opposite to the main vector of the QRS complex: ST depression and T wave inversion in leads with a dominant R wave.[]

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