The heart is a blood transport organ. Its importance to the body is self-evident, because without the heart, one cannot survive, and once the health of the heart is damaged, it will threaten people's lives at any time. Therefore, heart problems must be taken seriously. Heart problems usually occur in children. This is a manifestation of poor heart development. Let's take a look at what to do if a child's heart is not well developed? Medical treatment: digoxin can be used to strengthen the heart, and continuous intravenous infusion of prostaglandin E can delay the closure of the ductus arteriosus; oxygen inhalation and increased pulmonary artery blood flow can improve the oxygen saturation of the arterial system. Maintaining arterial oxygen saturation at 35-45 mmHg can effectively balance the patency of the ductus arteriosus and coronary artery blood supply. However, medical treatment is not a long-term effective treatment.Surgical treatment: The main surgery we perform now is the Norwood surgery, which is mainly divided into three stages. (1) The main pulmonary artery is isolated from the left and right pulmonary arteries and merged with the hypoplastic ascending aorta to allow the right ventricle to supply the systemic circulation through this duct. While maintaining the patency of the left and right atrial septal shunt, the pulmonary blood source is supplied by the newly created Blalock-Taussig surgery through the systemic-pulmonary shunt. (2) About 6 months after birth, the child undergoes a Hemi-Fontan procedure, also known as a bidirectional Glenn procedure, to connect the superior vena cava to the pulmonary artery.(3) Perform Fontan surgery or total cavopulmonary anastomosis between 12 and 18 months after birth to anastomose the right atrium and the right pulmonary artery or use an external tube to connect the inferior vena cava and the right pulmonary artery. The level of pulmonary artery pressure determines the success or failure of the operation. About 1/2 of cases can achieve satisfactory therapeutic effects through physiological correction, but the right ventricle is under long-term systemic circulation pressure, and its long-term effect needs to be followed up. Heart transplantation is an effective radical surgery.
The average age of death for those who do not undergo surgery is 4 to 5 days, but most die within 48 hours after birth. Patients with delayed closure of the ductus arteriosus may survive for weeks or even months. Surgery is the only life-saving measure. Follow-up analysis of the prognosis of the modified Fontan surgery showed that the survival rate of the Norwood one-stage surgery has reached more than 75%, and the one-year survival rate after the three-stage surgery has reached 58%. However, not all patients who have undergone the Norwood Phase I surgery are eligible for the Fontan surgery and need to choose a heart transplant. |
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