Mitral stenosis with severe pulmonary hypertension

Area of Science:

• Cardiology
• Pulmonary Hypertension
• Valvular Heart Disease

Background:

• Mitral valve disease is a significant cause of cardiac morbidity.
• Pulmonary hypertension is a serious complication of mitral stenosis.
• High pulmonary artery pressures impact patient prognosis and management.

Purpose of the Study:

• To investigate the clinical presentation and outcomes of patients with mitral stenosis and severe pulmonary hypertension.
• To evaluate the efficacy of surgical interventions in this patient cohort.

Main Methods:

• Retrospective analysis of 512 patients with mitral valve disease undergoing catheterization.
• Identification of 85 patients with mitral stenosis and systolic pulmonary artery pressures >= 100 mm Hg.
• Review of surgical procedures and perioperative management, including nitroprusside infusion.

Main Results:

• 85 patients had mitral stenosis with severe pulmonary hypertension (>= 100 mm Hg).
• Majority presented with New York Heart Association Class IV (51.8%) or Class III (35.3%) symptoms.
• Pulmonary hypertension symptoms were prominent in 56.5%; low cardiac output syndrome in the remainder.
• 40 patients underwent surgery (commissurotomy, mitral valve replacement, double valve replacement).
• Overall operative mortality was 15%; good long-term results in 30 patients.

Conclusions:

• Mitral stenosis with severe pulmonary hypertension presents with significant symptoms and carries a high operative risk.
• Surgical management, including valve repair or replacement, can lead to good long-term outcomes in carefully selected patients.
• Perioperative support, such as nitroprusside infusion, may improve survival in critical cases.