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39 Possible Causes for Intraventricular Conduction Delay, Left Axis Deviation

  • Left Bundle Branch Block

    Left bundle branch block is usually associated with normal or left axis deviation.[ncbi.nlm.nih.gov] LBBB is associated with intraventricular conduction delay, paradoxical septal motion, and hemodynamic deterioration, indicating an impairment of left ventricular (LV) function[ncbi.nlm.nih.gov] Patients were classified into three groups: traditional LBBB according to American Heart Association, LBBB according to Strauss and intraventricular conduction delay (IVCD[ncbi.nlm.nih.gov]

  • Left Anterior Fascicular Block

    Non-specific intraventricular conduction delay due to the lesions of the conduction bundles and slow cell to cell conduction has also been considered as another cause of heart[ncbi.nlm.nih.gov] The two current criteria for diagnosis of left anterior fascicular block (LAFB) were evaluated; they are marked left axis deviation (LAD) and a delay in the time of inscription[ncbi.nlm.nih.gov] Next chapter Non-specific Intraventricular Conduction Delay Related chapters Overview of Intraventricular Conduction Defects Right Bundle Branch Block (RBBB) Left Bundle Branch[ecgwaves.com]

  • Hyperkalemia

    Intraventricular conduction delay. Peaked T waves. Example 5 Hyperkalaemia: Broad complex rhythm with atypical LBBB morphology. Left axis deviation. Absent P waves.[lifeinthefastlane.com] Severe hyperkalemia (serum potassium 7.5 mEq/L) is manifested by atypical bundle branch block, intraventricular conduction delay, ventricular tachycardia, ventricular fibrillation[nephrologynews.com] With increasing delay in the intraventricular conduction, the surface ECG starts to show signs of left and right bundle branch block.[escardio.org]

  • 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[ncbi.nlm.nih.gov] Right Bundle Branch Block RBBB is a result of conduction delay in any portion of the right-sided intraventricular conduction system.[angelfire.com] Abstract 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[doi.org]

  • Left Ventricular Hypertrophy

    […] atrial involvement - terminal deflection of P wave in V1 is 1 box wide, and 1 box deep or more (3 points) Left axis deviation - QRS axis is -30 degrees or more negative ([merckmanuals.com] delays.[ncbi.nlm.nih.gov] Left axis deviation.[lifeinthefastlane.com]

  • 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).[ncbi.nlm.nih.gov] It is possible to consider that the left-sided nonspecific intraventricular conduction delay was concealed by the greater conduction delay occurring when the complete right[ncbi.nlm.nih.gov] Abstract Biventricular pacing has been used to treat patients with symptomatic heart failure, systolic left ventricular dysfunction and intraventricular conduction delays.[ncbi.nlm.nih.gov]

  • Bifascicular Block

    Next chapter Non-specific Intraventricular Conduction Delay Related chapters Overview of Intraventricular Conduction Defects Right Bundle Branch Block (RBBB) Left Bundle Branch[ecgwaves.com] […] with right bundle-branch block and left axis deviation (56% or 55/98).[ncbi.nlm.nih.gov] Effects of multisite biventricular pacing in patients with heart failure and intraventricular conduction delay. N Engl J Med. 2001;344:873–80. 38.[aafp.org]

  • Right Atrial Hypertrophy

    LAE & Left axis deviation (common but not needed to call LVH)[unm.edu] Right ventricular conduction delay or incomplete right bundle branch block without right ventricular hypertrophy or right axis deviation Isolated intraventricular conduction[aafp.org] deviation Left axis deviation QT Short QT syndrome T T wave alternans ST Osborn wave ST elevation ST depression Strain pattern Cardiomegaly Ventricular hypertrophy Left Right[en.wikipedia.org]

  • Supraventricular Tachycardia

    In addition to the rhythm, there is also a left anterior fascicular block (left anterior hemiblock), which is causing the left axis deviation.[ems1.com] The QRS complexes are always narrow unless there is rate-related aberrancy or preexisting intraventricular conduction delay. supraventricular tachycardia (SVT) [-ventrik′yələr[medical-dictionary.thefreedictionary.com] axis deviation Plateau pulse Postoperative His bundle tachycardia Postoperative sinoatrial disease Postural orthostatic tachycardia syndrome Pulse deficit Pulse irregular[icd9data.com]

  • Antidepressant Toxicity

    Specific Findings Poorly Diagnostic Findings Terminal QRS Axis 33% 71% Right axis deviation of 120-270 degrees in the terminal 40ms frontal plane QRS vector for ventricular[getthediagnosis.org] conduction delay Prolonged QRS 100ms Rightward shift of the T40-msec QRS axis Wide Complex Tachycardia (non-VT) Note: The EKG should be reviewed in any patient with an anticholinergic[coreem.net] Electrocardiogram (ECG) abnormalities are frequent and a wide variety of cardiac dysrhythmias can occur, the most common being sinus tachycardia and intraventricular conduction[en.wikipedia.org]

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