Single atrium treatment
Surgical indication: single atrium due to the existence of mixed blood, can cause hypoxia, cyanosis, erythrocytosis may occur due to cerebral embolism, infection and so on. In addition an increase in pulmonary blood flow, and gradually cause pulmonary hypertension, and finally the formation of irreversible pulmonary vascular obstructive disease. Therefore, children with a clear diagnosis, if not yet serious pulmonary vascular obstructive disease, should early surgery for single atrium.
Surgery is perform by median sternotomy incision, cardiopulmonary bypass. Use pericardial to made interatrial septum, accompanied by left superior vena cava with left atrial inflow is required to corrective operation, mitral valve insufficiency also need to repair.
1. atrial septal defect repair: a common atrium through the right atrial lateral incision repair of atrial septal defect, pericardial patch itself available, polyester or PTFE artificial fabric, in the atrioventricular superficial indeed in all aspects of the application of the Central Office intermittent mattress suture. In the atrioventricular node and atrioventricular bundle suture zone, it is best to keep the heart beating, conduction system in order to prevent injury.
2. left superior vena cava in left atrial inflow corrective operation:
1) A simple ligation of left superior vena cava: applied to the left and right superior vena cava between the innominate vein have enough traffic or transport vessels.
2) Correcting left superior vena cava drainage into the right atrium: the superior vena cava when the dual does not exist between the innominate vein, and no adequate collateral vessels, as the left superior vena cava into the left atrium of the different positions, it is also different surgical methods.
Rastelli law: the left superior vena cava cross-drainage tube placed in the posterior wall of the common atrial chamber, the atrium posterior wall of full-thickness enveloping the intubation, pose a tubular suture, removal of deliberately room tunnel after intubation, the right atrial septal openings, the left superior vena cava blood flow through the tunnel into the right atrium.
Transposition of the entrance of left superior vena: the left superior vena cava from the left atrium at the entrance to cut in line with the right atrial appendage.
Left superior vena cava and the right atrium should be connected by artificial blood vessels.
