Can Tetralogy of Fallot be cured?

Written by Yao Li Qin
Pediatrics
Updated on November 22, 2024
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Tetralogy of Fallot is a type of congenital heart disease linked to family genetics and is considered quite severe among congenital heart conditions. Generally, within a few months after birth, children will exhibit cyanosis of the skin. It is crucial to perform surgery on the child promptly in such cases. Currently, the level of pediatric cardiothoracic surgery in our country has developed very rapidly. For typical cases of Tetralogy of Fallot, surgical treatment can be curative. Moreover, there are no specific requirements regarding weight and age for children undergoing heart surgery nowadays. Therefore, once Tetralogy of Fallot is diagnosed in young children, it is best to perform surgery as soon as possible. These children can then grow up, develop normally, and attend school like their peers.

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Written by Hu Qi Feng
Pediatrics
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The reason for squatting in Tetralogy of Fallot

The reason for squatting is that when squatting, the lower limbs are bent, which reduces the amount of blood returning to the heart through the veins, thereby reducing the load on the heart. At the same time, the arteries in the lower limbs are compressed, which increases the resistance in the systemic circulation and reduces the right-to-left shunt volume, allowing temporary relief from hypoxia symptoms. Babies who cannot walk often like to be held by adults in a position that bends the lower limbs to reduce the amount of blood returning to the heart. This frequently occurs during walking and playing, often characterized by brief periods of squatting.

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Written by Hu Qi Feng
Pediatrics
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Tetralogy of Fallot Emergency Measures

Generally, one should often drink water to prevent infection, prevent dehydration and complications. Infants and young children should be especially careful in their care, to avoid episodes of paroxysmal hypoxia. In mild cases of hypoxic episodes, placing them in a knee-chest position can alleviate the symptoms. In severe cases, oxygen should be administered immediately, along with the appropriate drug treatment. If the episodes cannot be effectively controlled with medication, emergency surgical intervention may be necessary. With the continuous improvement in surgical techniques this year, the mortality rate for curative surgeries has been decreasing.

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Written by Hu Qi Feng
Pediatrics
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Management of Hypoxic Episodes in Children with Tetralogy of Fallot

In the treatment of hypoxic episodes in children with Tetralogy of Fallot, mild cases can be alleviated by positioning the child in a knee-chest position, while severe cases should receive immediate oxygen therapy, along with appropriate medication to correct acidosis. It is important to regularly eliminate factors that may trigger hypoxic episodes, such as anemia and infections, and to maintain a calm environment for the child. If these measures do not effectively control the episodes, emergency surgical repair should be considered.

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Written by Hu Qi Feng
Pediatrics
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Tetralogy of Fallot in children who prefer squatting is because

Tetralogy of Fallot exhibits squatting symptoms because squatting involves flexing the lower limbs, which reduces the amount of venous return to the heart, thereby decreasing the cardiac workload. At the same time, the arteries of the lower limbs are compressed, increasing systemic vascular resistance, reducing right-to-left shunting, and temporarily alleviating hypoxia symptoms. Infants who cannot walk often prefer to be held with their thighs up, with both lower limbs bent; after they become able to walk, they frequently squat down momentarily during walking or playing.

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Written by Hu Qi Feng
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Tetralogy of Fallot Clinical Characteristics

Tetralogy of Fallot is the most common cyanotic congenital heart disease in infancy, accounting for about 12% of all congenital heart diseases. It is caused by malformations of four heart structures: 1. right ventricular outflow tract obstruction; 2. ventricular septal defect; 3. overriding aorta; 4. right ventricular hypertrophy. Its clinical manifestations may include cyanosis, squatting symptoms, clubbed fingers, and paroxysmal hypoxia attacks. Physical examinations generally show delayed development, a prominent precordial area, and at the second to fourth rib interspace along the left sternal margin, a grade 2 to 3 rough systolic murmur can be heard.