Microinvasive surgical transthoracic occlusion for patent ductus arteriosus: a report of 38 cases

Objective To summarize the experience of applying microinvasive surgical transthoracic occlusion in the treatment of patent ductus arteriosus (PDA). Methods A total of 38 patients with PDA were given microinvasive surgical transthoracic occlusion. The diameter of PDA was 4.5~18.3 mm. An incision of 2~3 cm in length was made on the left anterior chest. A special occluder was inserted to close PDA under the guidance of transesophageal echocardiography. Results All the patients were successfully occluded. Pneumonia happened in two patients after the procedure. Moderate amount of pericardial effusion occurred in one patient. They were cured. Echocardiography at three months after operation showed significant relief of pulmonary artery hypertension, from (55± 20) mmHg to (36±15) mmHg (P0.05). The patients were followed up for 3~24 months, (14.5±8.2) months in average, no dislocation of the device or arterial shunt was found. Conclusion Microinvasive surgical transthoracic occlusion is safe and efficient for the closure of PDA, which is suitable for patients in various age ranges.