Health After Bypass Surgery

Hello,
My father underwent a bypas surgery second time in Nov 2009.First was held in April 2004.
He has having a diabetice since 30 years.his age is 59 now.
After two years of 2nd bypass surgery.he is feeling dizzy in night only.
My question is that what could be the reason that he is facing dizzyness,breathlessness in night (after 10 pm)only.
what could be the treatment in this problem?

[ed34]

I would have a talk to the cardiologist. It could be something simple, such as medication wearing off too soon. I would have some tests run in case this is an early sign of a bigger problem. Does the problem only occur when he lays down?

[kalim123]

Dear Anandjoshi there are two top most differential diagnosis in your father case
1- cardiac arrythmias , ventricular most probably although it can be less dangerous atrial fibrillation, he may need Holter monitoring to sort it out .
2- As he has been diabetic since 30 years he may be having "Diabetic cardiomyopathy"
an urgent echocardiogram is needed .

                                         there may be some other diagnoses unrelated to cardiac problem but related to long term diabetes , but first you must consult a local cardiologist then go to elsewhere. I hope I answered you .

[anandjoshi]

Thnx ed34.

yes..the problem occur only in night time..when he lays down.

I wud like to provide some aditional Info.

He is following stict diet advised by our doctor.but if he takes meal even little more than that..this problem  occurs.
his EF is 40-45 %

[anandjoshi]

thnx kalim..
we are regulary in touch with our cardiologist..!!!

yes..my father having problem because of dibetice only...
as he dont have any habits like smoking,drinking...
also he is pure vegeterian.