Mitral regurgitation of 40% is not considered to be mild regurgitation and is classified as moderately severe mitral regurgitation according to current guideline recommendations. Primary mitral regurgitation is generally treated with mitral valve repair; secondary mitral regurgitation should be considered for surgical treatment only after appropriate medical and instrumental therapies have been used.
Decisions about mitral regurgitation treatment are based on multiple variables, including lesion type, severity, hemodynamic consequences, disease stage, patient comorbidities, and experience of the heart valve team and its members.
Moderate-to-severe mitral regurgitation can cause cardiac insufficiency induced by heart failure, and disease progression to advanced stages can manifest with adverse consequences such as insufficiency of right heart function, liver stasis, pleural and abdominal fluid, and edema. In the acute stage, a large amount of reflux can lead to hemodynamic instability, and even shock, etc. If the surgical treatment is not timely, it can seriously affect the patient’s survival and quality of life.
It is recommended that patients can consult with regular hospitals for comprehensive assessment and treatment under the guidance of doctors to avoid delaying the condition leading to poor prognosis.