Low pulmonary blood flow

Symptoms of patients with tricuspid atresia are closely related to pulmonary blood flow. Those with close to normal pulmonary blood flow can survive for up to 8 years; those with a lot of pulmonary blood flow generally can only survive for 3 months after birth; those with less than normal pulmonary blood flow live in the aforementioned two situations between. Keith et al reported that 50% of patients with tricuspid atresia can survive to 6 months, 33% survive to 1 year, and only 10% survive to 10 years. Cases with small atrial septal passages present clinically with systemic venous congestion, jugular vein distension, hepatomegaly, and peripheral edema. Due to the low blood volume of the pulmonary circulation, most cases can show cyanosis from the neonatal period, shortness of breath after exertion, and squat position or hypoxic syncope may occur. Patients over 2 years old often have clubbing fingers (toes). In cases with increased pulmonary blood flow, the level of cyanosis is reduced, but often shortness of breath, rapid breathing, easy to develop lung infections, and often presenting congestive heart failure.

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