Prevention of tricuspid regurgitation is related to the cause. For example, avoiding the use of intravenous drugs can prevent many cases due to heart valve infection. Avoiding smoking could help prevent many cases due to pulmonary hypertension, congestive heart failure, and heart attacks. Many cases cannot be prevented.
In severe untreated tricuspid regurgitation, the long-term effects may include congestive heart failure, heart and liver damage, and dangerous arrhythmias. Tricuscpid regurgitation is often a long-term condition with symptoms that appear slowly over many years. If there are no other heart problems, the person may have no long-term effects.
There are no risks to others, since tricuspid regurgitation is not contagious.