rate axis hypertrophy

rate axis hypertrophy - 3/30/2009 AtrialEnlargement

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3/30/2009 1 Atrial Enlargement Normal P wave duration < 0.12 sec Normal amplitude < 2.5 mm (0.25 mV) Look to Lead II and V1 to analyze the P wave Right atrial enlargement amplitude of first portion of P wave is increased (V1) OR P wave height is > 2.5 mm (L II) Left atrial enlargement Amplitude of last portion of P wave is increased (V1) OR P wave duration is > 0.12 sec Clinical manifestations of atrial enlargement Right atrial enlargement P pulmonale ( Cor pulmonale), may be accompanied by lung disease May also see RAD Left atrial enlargement P mitral , may be accompanied by disease of the mitral valve
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3/30/2009 2 Ventricular hypertrophy To analyze hypertrophy in the ventricles we will examine QRS amplitude (precordial leads) and axis Right Ventricular Hypertrophy Right axis deviation (RAD) Precordial leads In V1, R wave > S wave In V6, S wave > R wave Usual manifestation is pulmonary disease or congenital heart disease RVH Opie, 1998 RVH R > S V1 V2 V3 Thaler, 1999 V4 V5 V6
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This note was uploaded on 01/16/2012 for the course KINE 430 taught by Professor Dr.jenniferblevins-mcnaughton during the Fall '11 term at Tarleton.

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rate axis hypertrophy - 3/30/2009 AtrialEnlargement

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