Brief Answer: Total clinical picture, not heart size predicts... Detailed Answer: Hi friend, Welcome to Health Care Magic Even with all data, it is difficult to predict in a given individual; any information is a statistical approximation from the population… It is difficult to assess too - it depends upon ejection fraction of heart / valves’ integrity and function / wall of the chambers / control of arrhythmia, their nature and frequency / renal function / response to medicines / associated morbidity and so on…. The treating doctor alone can suggest further based on his assessment of the situation. Good luck Take care Wishing all well God bless

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