aVL: cambios recíprocos

The Importance of Reciprocal Changes in aVL

R.E.B.E.L.EM - By Salim Rezaie

"ECG interpretation is one of the most important skills to master as an emergency physician, and its interpretation can be very complex and frustrating. ECG manifestations can be very subtle, and sometimes the earliest and only ECG change seen will be reciprocal changes alone. To further complicate this, many patients have the atypical symptoms of nausea/vomiting, weakness, or shortness of breath and not chest pain

What is the differential diagnosis for reciprocal changes in aVL?

• Inferior acute myocardial infarction 
• Anterior acute myocardial infarction 
• Left ventricular hypertrophy 
• Left bundle branch block 
• Digitalis Use 

Conclusion

Reading  of the ECG remains a crucial diagnostic and prognostic tool for acute MI, and the earliest finding of an acute MI may be reciprocal changes in lead aVL."

http://rebelem.com/importance-reciprocal-changes-avl/