Atrial Enlargement More Condition_symptoms Left Atrial Enlargement?

Left atrial enlargement? - atrial enlargement more condition_symptoms

Hello I am scared about my husband had an electrocardiogram at the age of 18 years by the army and found that reading your medical records, which do not even have been said or what he said!
The results of the study, said:

Sinus bradycardia with marked sinus aprhythmia
Dilatation of the left atrium
ECG-border

Ventilation of 53 bpm
The PR interval of 140 ms
ORs duration of 100 ms
ms QT / QTc 440/410
PRT axes 33 80 51

You can tell me what this is all what manners!
Thank you for your time