I was first diagnosed with “severely enlarged left atrium” after an echocardiogram. Looking for causes, I was diagnosed with Premature Atrial Complexes after a 48 hour Holter Monitor test. Also have minor leakage in left valve which may be due to enlarged atrium stretching the valve. I have no other heart conditions or symptoms other than slow heart rate; I did start using a CPAP about two years ago for moderate sleep apnea. My concern is stopping the enlargement and escalating any additional heart conditions. Any other patients been down this path or mentors have suggestions?