Vent rat 66bpm, pr int 141 ms, qrs dur 89ms, qt/qtc 415/429 ms, p-r-t axes 65 29 37, qtcb 437 ms, atypical ECG low qrs voltage. What does the ECG mea?

Abnormal ECG. The major finding is low voltage. Causes of low voltage include: pericardial effusion, pleural effusion, overweight, emphysema, pneumothorax, contrictive pericarditidis, previous massive mi, end-stage dilated cardiomyopathy, infiltrative myocardial diseases — i.e. Restrictive cardiomyopathy due to amyloidosis, sarcoidosis, haemochromatosis; scleroderma, myxoedema (severe low thyroid hormone).