Intraventricular Conduction: Difference between revisions

Intraventricular Conduction (view source)

128 bytes added , 25 August 2012

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 ==Left Anterior Fascicular Block (LAFB)==
 {{Box|
-;Criteria for left anterior fascicular block
+;Criteria for Left Anterior Fascicular Block
-:Left axis deviation (<-30°)
+#Frontal plane axis between −45° and −90°.
-:No or very small S in lead I
+#qR pattern in lead aVL.
-:Normal small q in lead I
+#R-peak time in lead aVL of 45 ms or more.
-:S > R in leads II and III
+#QRS duration less than 120 ms.
-:No or very few QRS widening
+These criteria do not apply to patients with congenital heart disease in whom left-axis deviation is present in infancy.
 }}
 [[Image:LAHB.png|thumb|Left anterior hemiblock]]