Balloon valvuloplasty for pulmonary stenosis: Experience of Mohammed VI University Hospital of Marrakech

Introduction: Pulmonary stenosis (PS) is a common congenital heart disease that obstructs the blood flow from the right ventricle (RV) to the pulmonary artery (PA). Percutaneous balloon valvuloplasty is the first-line treatment for this disease, and the outcomes depending on the anatomical characteristics of the right ventricle and the pulmonary artery. Objectives: To conduct an epidemiological study, investigate the circumstances of pulmonary stenosis diagnosis, evaluate the diagnostic role of Doppler echocardiography, and determine the therapeutic role of interventional treatment. Methods: This descriptive retrospective study involved patients with PS followed in the functional exploration department of Mohammed VI University hospital of Marrakech between March 2024 and June 2024. Results: Three patients were included. The presenting symptoms were dyspnea with paroxysmal palpitations in two patients and feeding difficulty in one patient. All patients had an ejection systolic murmur in pulmonary area. Balloon dilatation was successfully performed in all patients, with the saturation increasing from an average of 93% to 97%. Conclusion: Percutaneous balloon treatment for pulmonary stenosis is a safe and effective alternative with few complications and good immediate results.