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40 Possible Causes for Left Axis Deviation, Short PR Interval, T Wave Inversion

  • Hypertrophic Cardiomyopathy

    ECG: Findings also may include right or left axis deviation, conduction abnormalities, sinus bradycardia with ectopic atrial rhythm and atrial enlargement.[] The most peculiar electrocardiogram findings are giant T-waves inversion in the precordial leads with left ventricular (LV) hypertrophy.[] PR interval ( First-degree (PR 0.21 s, not shortening with hyperventilation), second-degree, or third-degree atrioventricular block To assess whether the changing pattern[]

  • Right Bundle Branch Block

    LV) anterior wall thinning, n 3), and RBBB LAFB (RBBB with left axis deviation without LV anterior wall thinning n 2).[] [] T Wave T Wave Inversion [] T Wave T Wave Inversion Delayed activation of the right ventricle also gives rise to secondary repolarization abnormalities[] PR interval) and incomplete right bundle branch block (IRBBB).[]

  • Familial Progressive Cardiac Conduction Defect

    There was a left bundle branch block in both and a left axis duration in 3M and right axis deviation in NM.[] ECG T-wave inversion in right precordial leads (V 2 and V 3 ) 2. SAECG Late potentials seen on signal-averaged ECG 3.[] After two years, the rhythm of 3M deteriorated and he developed a first degree heart block, irregular heart rhythm with atrial extra systoles in addition to the left bundle[]

  • Myocardial Infarction

    Response to ECG Challenge This ECG shows sinus rhythm with left-axis deviation in the frontal plane (left anterior hemiblock) with notches in the S wave, a broad R S in V[] 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.[]

  • Chronic Obstructive Pulmonary Disease

    One definite myocardial infarction and one patient with acute Twave inversion and hyperglycemia suggestive of a myocardial infarction were reported among 97 patients receiving[]

  • Left Bundle Branch Block

    Left bundle branch block is usually associated with normal or left axis deviation.[] The precordial leads in these patients will demonstrate alarmingly deep, symmetrical T-wave inversions.[] On superficial evaluation, the ECGs suggest the presence of an alternating bundle branch block, but on a closer look it is seen that the PR intervals of the RBBB morphology[]

  • Left Posterior Fascicular Block

    Verapamil-sensitive, idiopathic left ventricular tachycardia (ILVT) with right bundle branch block configuration and left-axis deviation is known to be due to re-entry mechanism[] T-wave inversion may occur in inferior leads and simulate post-ischemic T-waves.[] Bundle branch block with short PR interval in healthy young people prone to paroxysmal tachycardia.[]

  • Ebstein Malformation

    Thus, left-axis deviation is the rule.[] […] as a prolonged PR-interval low amplitude QRS complexes in the right precordial leads atypical right bundle branch block T wave inversion in V1-V4 and Q waves in V1-V4 and[] The classic WPW ECG pattern consists of : A short PR interval (rapid AV conduction through the accessory pathway) Delta wave (initial slow ventricular activation due to fiber[]

  • Preexcitation Syndrome

    Additional ECG clues to diagnosis of left ventricular hypertrophy are left axis deviation, increased QRS duration and the presence of left atrial enlargement.[] Since ventricular depolarisation is abnormal, ventricular repolarisation is also abnormal and ST-segment depression and/or T wave inversion may be seen.[] The classic electrocardiogram in Wolff-Parkinson-White (WPW) syndrome is characterized by a short PR interval and prolonged QRS duration in the presence of sinus rhythm with[]

  • Lown-Ganong-Levine Syndrome

    deviation , Left axis deviation ) · QT ( Short QT syndrome ) · T ( T wave alternans ) · ST ( Osborn wave , ST elevation , ST depression ) Cardiomegaly Ventricular hypertrophy[] Since ventricular depolarisation is abnormal, ventricular repolarisation is also abnormal and ST-segment depression and/or T wave inversion may be seen.[] The PR interval is short. Click here for a more detailed ECG ECG 3. Short PR interval in a 7 years-old boy.[]

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