QRS axis: Difference between revisions

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== Right axis deviation==
== Right axis deviation==
[[Image:rightaxis.jpg|thumb| Right heartaxis]]
[[Image:rightaxis.jpg|thumb| Right heartaxis]]
Causes of right axis deviation include:
*Normal variation (vertical heart with an axis of 90º)
*Mechanical shifts, such as inspiration and emphysema
*[[Hypertrophy| Right ventricular hypertrophy]]
*[[Hypertrophy| Right ventricular hypertrophy]]
*[[RBBB|Right bundle branch block]]
*[[LPFB|Left posterior fascicular block]]
*Dextrocardia
*Ventricular ectopic rhythms
*Preexcitation syndrome
*Lateral wall myocardial infarction
*Right ventricular load, for example [[Pulmonary_Embolism|Pulmonary Embolism]] or Cor Pulmonale (as in COPD)
*Right ventricular load, for example [[Pulmonary_Embolism|Pulmonary Embolism]] or Cor Pulmonale (as in COPD)
*Atriumseptumdefect, ventricleseptumdefect
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==Microvoltages==
==Microvoltages==
{{:Microvoltages}}
{{:Microvoltages}}