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116 Possible Causes for Left Axis Deviation, Prolonged PR Interval

  • Hyperkalemia

    ., prolonged PR interval, wide QRS complex) as an alternative to 10 units of short acting insulin.[ncbi.nlm.nih.gov] Left axis deviation. Absent P waves. Example 6 Hyperkalaemia: Sine wave appearance with severe hyperkalaemia (K 9.9 mEq/L). Example 7 Hyperkalaemia: Huge peaked T waves.[lifeinthefastlane.com] , prolonged PR interval, prolonged QRS interval, loss of P wave, sine waves and finally ventricular fibrillation (see ECG guideline for normal values for age) ECG CHANGES[starship.org.nz]

  • Ostium Primum Atrial Septal Defect

    In Primum defects left axis deviation is seen in most patients with an axis of -30 degrees and very few patients have right axis deviation.[en.wikipedia.org] Complete heart block may be revealed in ostium primum type Large ASD may have prolonged PR interval 18.[slideshare.net] Individuals with atrial septal defects may have a prolonged PR interval (a first degree heart block).[marmur.com]

  • Endocardial Cushion Defect

    Three groups of patients are identified in the series of secumdum atrial septal defect with left axis deviation in an analysis of 910 patients of secundum atrial septal defect[ncbi.nlm.nih.gov] PR interval in about half cases- due to prolonged atrial conduction rather than AV block RAE in primum ASD, BAE in complete AVCD.[heartpearls.com] Abstract Three groups of patients are identified in the series of secumdum atrial septal defect with left axis deviation in an analysis of 910 patients of secundum atrial[heart.bmj.com]

  • Left Bundle Branch Block

    Left bundle branch block is usually associated with normal or left axis deviation.[ncbi.nlm.nih.gov] Peaking of T waves, prolongation of PR interval, diminution/absence of P wave, and widening of QRS complex can still be appreciated if one carefully compares the baseline[ncbi.nlm.nih.gov] PR interval.[oxfordmedicaleducation.com]

  • Left Ventricular Hypertrophy

    There is also first-degree AV block, with a prolonged PR interval of 228 ms.[ecgguru.com] […] 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] Left axis deviation.[lifeinthefastlane.com]

  • First-Degree Atrioventricular Block

    Data is sparse on an extremely prolonged PR interval associated with Atrioventricular Dissociation and Pseudo-Pacemaker Syndrome.[ncbi.nlm.nih.gov] Frequently, there is left axis deviation, especially if the hypertrophy is confined to the left ventricle.[ecgguru.com] Rooney S-M, Goldiner PL, Muss E: Relationship of right bundle-branch block and marked left axis deviation to complete heart block during general anesthesia.[anesthesiology.pubs.asahq.org]

  • Atrial Septal Defect

    Complete heart block may be revealed in ostium primum type Large ASD may have prolonged PR interval 18.[slideshare.net] When an ostium primum atrial defect is present, the ECG reveals left axis deviation.[healio.com] In ostium primum ASD, it shows left axis deviation and right bundle branch block. In sinus venosus ASD, it shows left axis deviation and a negative P wave in lead III.[symptoma.com]

  • Cardiac Amyloidosis

    Electrocardiogram depicted low voltage in limb leads and a prolonged PR interval.[ncbi.nlm.nih.gov]

  • Verapamil

    Ritonavir also prolongs the PR interval in some patients; however, the impact on the PR interval of coadministration of ritonavir with other drugs that prolong the PR interval[pdr.net] Verapamil-sensitive fascicular ventricular tachycardia is a rare arrhythmogenic condition characterized by a right bundle-branch block pattern and left-axis deviation with[ncbi.nlm.nih.gov] Increased levels can lead to prolongation of PR interval, increased QRS duration and an increase in QT interval.[casesjournal.biomedcentral.com]

  • Sinoatrial Block

    This is different than a first-degree atrioventricular, or AV, block, which shows a prolonged PR interval.[healio.com] If left axis deviation is present, think about left anterior fascicular block , and if right axis deviation is present, think about left posterior fascicular block in addition[ecg.utah.edu] Mobitz Type 1 (Wenckebach) • Gradual prolongation of PR interval until nonconducted p wave • RP-PR reciprocity • Lengthening of the PR interval at progressively shorter decrements[slideshare.net]

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