Welcome to HCM,
Whatever information you have given for your mother, she has cardiomegaly
with pulmonary oedema
, blunting of bot the C P angles suggest cardiac failure and swelling in lungs.
This is the reason she is prescribed Dytor which is diuretic,it will increase urine out put and will relive lungs
congestion. Haziness should be part of pulmonary oedema but secondary infection may causing Pneumonitis
Sternal suture points out to wards a Bypass Surgery
Hope this information will help.
If there is any doubt you can ask me.
Best of Luck.