Post-Operative Severe Valvular Regurgitation: Surgical Indications and Management

Surgical Indications for Severe Aortic Regurgitation

• Surgery is indicated in all symptomatic patients with severe aortic regurgitation regardless of LVEF 2

• Surgery is indicated in asymptomatic patients with severe aortic regurgitation with resting LVEF ≤50% or evidence of LV dysfunction 2

• Severe aortic regurgitation will lead to progressive LV dilation and dysfunction if left untreated 3

• Beta-blockers may reduce forward cardiac output in severe regurgitant lesions 2

Surgical Indications for Severe Tricuspid Regurgitation

• Surgery is indicated for severe primary tricuspid regurgitation in symptomatic patients without severe RV dysfunction 3

• Surgery is indicated for severe secondary tricuspid regurgitation when undergoing left-sided valve surgery 3

Echocardiographic Monitoring and Surgical Thresholds

• Serial echocardiography should assess LV end-systolic dimension, with surgery indicated if LVESD ≥45mm 3, 5

• Surgery is indicated if LVEF ≤60% in primary regurgitation 3, 5

• Serial echocardiography should monitor RV function and pulmonary pressures 3

• Development of dyspnea, exercise intolerance, or heart failure symptoms mandates urgent surgical evaluation 2, 3

• New atrial fibrillation or pulmonary hypertension >50mmHg are additional surgical indications 5, 7

Prognostic Considerations in Severe Mitral Regurgitation

• In severe mitral regurgitation, LVEF should ideally be >64%; a "normal" LVEF of 50-60% may actually represent early dysfunction 1

• Waiting for LVEF to decline before surgery results in worse outcomes 4, 5