My mom at 56 years (4ft 12 inch, normal bp, no sugar, no cholestrol issues), obese around 65 Kg has been recently diagnosed via an echo cardiogram to have an 15mm ASD. I also noticed that the report mentions the following (mild tricuspid regurgitation & mild pulmonary hyper tension)

Are these side effects of ASD? or was the ASD caused by these? Also, her echo cardiogram taken an year ago didn't show the ASD problem.

2 -D AND DOP P L ER F INDINGS
Rh y t hm : S i n u s Rh Y t hm
Mitial valve, tricuspid valve, aortic valve and pulmonic valve normal'
Trivial mitral and mild tricuspid valve regurgitation.
Lefr ventricle: Normal systolic function, no RWMA, Diastolic dysfunction
Left atrium is normal. Right ventricle and right atrium is dilated.
I A S :Os t i um s e c o n d um A SD me a s u r i n g 1 5mm wi t h L -R s h u n t .
Intact inter ventricular sePtum.
No LV/LA masses, vegetations or thrombus.
Main pulmonary artery and aorta normal.
No pericardial thickening and/or effusion.
ECHO DI AGNOS I S
CONGENI T A L HE ART DI S E A S E
Ostium secondum ASD measuring 15mm with L-R shunt
Mild pulmonary arterial hypertension
'
Normal biventricular systolic function
LV diastolic dysfunction