Thank you for the query.
As per the information provided, your mother is 90yrs old, suffering from Congestive cardiac failure and atrial
fibrillation, and having a fluid overload (despite taking Frusemide-
Lasix).
Congestive cardiac failure implies a heart which is progressively failing and unable to do its proper function of pumping blood. Usually, the normal heart has a capacity to pump blood, which decreases in a failing heart. In such a situation if we add excess load to the diseased heart (for eg fluid overload), the situation may worsen. Since oral Frusemide is not working in her case, intravenous frusemide may be needed. She also needs to undergo an
echocardiography to assess her
ejection fraction, though in her case it is all the more difficult since she is also having Atrial fibrillation.
In such a situation it is important to restrict her intake of fluid to 1-1.2 Litres/day. Also it is important to restrict her dietary salt (provide she is not having
hyponatremia or low sodium). I would advise you to take her to the physician atleast once, since her drug regimen should be reviewed. Drugs like
Spironolactone or
Eplerenone may be added which may help in cardiac failure. Also intravenous frusemide may be administered during her visit.
Hope this helps you out.
Regards,
Dr Ayusmati Thakur