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==Criteria for left ventricular hypertrophy== | ==Criteria for left ventricular hypertrophy== | ||
[[Image:E_lvh.jpg|thumb]] | [[Image:E_lvh.jpg|thumb]] | ||
[[Image: | [[Image:left_ventrikel_hypertrofie.GIF|thumb]] | ||
[[Image:LVH.jpg|thumb|ECG of patient with left ventricular hypertrophy according to the Sokolow-Lyon criteria]] | [[Image:LVH.jpg|thumb|ECG of patient with left ventricular hypertrophy according to the Sokolow-Lyon criteria]] | ||
As the left ventricular becomes thicker, the QRS complexes become larger. This is especially true for leads V1-V6. The S wave in V1 is deep, the R wave in V4 is high. Often some ST depression can be seen in leads V5-V6, which is in this setting is called a 'strain pattern'. | As the left ventricular becomes thicker, the QRS complexes become larger. This is especially true for leads V1-V6. The S wave in V1 is deep, the R wave in V4 is high. Often some ST depression can be seen in leads V5-V6, which is in this setting is called a 'strain pattern'. |