Hi, Thanks for writing. I am a qualified and certified cardiologist. Hoarseness
and phlegm can be related to leaky mitral valve producing large left atrium which in turn press the motor nerve (recurrent laryngeal Nerve
) to vocal cords. It is not associated with leaky aortic valve
unless it is gross and has led to Mitral regurgitation
large left atrium too. Personally, I would like your doctor to see the x-ray which will show left atrium is enlarged or not and there are other causes of phlegm which are much more common and easily treatable. Laryngeal infection
can produce hoarseness. Good Luck.
With Best Wishes.
Dr Anil Grover,
MBBS, MD (Internal Medicine) DM (Cardiology)