Does a patent ductus arteriosus easily lead to bronchitis?

Written by Di Zhi Yong
Cardiology
Updated on September 24, 2024
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Patent ductus arteriosus can lead to bronchitis, as this condition can cause recurrent respiratory infections, particularly bronchitis and bronchopneumonia. This is a type of congenital heart disease, and it is recommended that patients undergo regular echocardiography, especially cardiac ultrasound. If the closure of the patent ductus arteriosus is delayed, early surgical treatment is required. This condition can sometimes affect the growth and development of children, and it mainly causes repeated respiratory infections, including bronchitis, particularly issues with pulmonary inflammation, which require early management.

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Written by Di Zhi Yong
Cardiology
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Is it easy to get pneumonia if the arterial duct is not closed?

Because patent ductus arteriosus is a type of congenital disease, particularly congenital heart disease, it is recommended that patients visit a hospital for a cardiac ultrasound. This can help clarify the diagnosis and thus determine the treatment plan. A simple patent ductus arteriosus can sometimes close on its own. For those that do not close or are underdeveloped, surgical treatment can be used to alleviate the current condition. This is important because the disease can easily lead to pneumonia, especially recurrent respiratory infections. Sometimes, there may be developmental anomalies, particularly affecting the growth and changes in the child's height and weight. In these cases, early surgical treatment is still recommended.

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Written by Tang Li
Cardiology
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Why does patent ductus arteriosus cause a decrease in diastolic pressure?

In patients with patent ductus arteriosus, since the aortic pressure is significantly higher than the pulmonary artery pressure throughout the cardiac cycle, there is continuous blood flow from the aorta into the pulmonary artery through the open duct, causing a left-to-right shunt. This increases the blood volume in the pulmonary circulation, causing dilatation of the pulmonary artery and its branches. The blood flow returning to the left heart system also increases, thereby increasing the load on the left heart and causing the left heart to enlarge. Due to the diastolic diversion of blood from the aorta to the pulmonary artery, the peripheral arterial diastolic pressure decreases and the pulse pressure increases.

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Written by Xie Zhi Hong
Cardiology
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Why does patent ductus arteriosus cause differential cyanosis?

The arterial duct refers to a blood vessel connecting the main pulmonary artery and the aorta, which is normally present during fetal development. It allows blood from the mother's placenta to seep into the pulmonary artery and then enter the aorta to supply the entire body's vasculature. After the birth of an infant, this blood vessel naturally closes, typically within 3 months, and most people will have it closed by 1 year. If it has not closed after 1 year, it is referred to as patent ductus arteriosus. Because the arterial duct can connect the aorta and the main pulmonary artery, blood from the systemic circulation in the aorta may directly return to the pulmonary artery at this time. If the pulmonary artery blood flow significantly increases, it can lead to pulmonary arterial hypertension and might also cause right ventricular hypertrophy. Increased cardiac workload can lead to right-sided heart failure and may also cause left-sided heart failure. When severe left-sided heart failure occurs, a right-to-left shunt can develop, which allows pulmonary artery blood to directly enter the aorta, causing venous blood to be delivered directly into the systemic circulation. At this point, differential cyanosis occurs, characterized by bluish discoloration of the upper limbs and mild blueness in the lower limbs.

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Written by Xie Zhi Hong
Cardiology
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Is a patent ductus arteriosus funnel type severe?

The arterial duct is a pathway through which blood from the maternal placenta is delivered to the fetus. This pathway usually closes at birth, and in most cases, it successfully closes within three months. If it remains open after one year, it can be diagnosed as a patent ductus arteriosus. The shapes of the arterial duct include funnel-shaped, tubular, and window-type. Regardless of the type, if it does not cause serious cardiac complications, it can be addressed with interventional treatments or surgical procedures, making it a relatively non-severe condition. However, if the patent ductus arteriosus remains open for a long time, leading to severe pulmonary arterial hypertension and even left-to-right shunts causing serious cardiac dysfunction, it is considered severe. Therefore, the shape of the patent ductus arteriosus does not have diagnostic significance regarding the severity of the condition. Rather, the severity is assessed based on the patient's symptoms, evaluation of cardiac function through echocardiography, and the condition of pulmonary artery pressure. In the early stages, most cases of patent ductus arteriosus are not very serious and can be resolved through treatment.

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Written by Xie Zhi Hong
Cardiology
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Can patent ductus arteriosus be treated with medication?

The ductus arteriosus is a blood vessel connecting the pulmonary artery to the aorta in the fetal heart, primarily used during the embryonic stage to supply blood from the mother to the heart, thus providing sufficient oxygenated blood for fetal development and growth. Generally, the ductus arteriosus should close automatically within three months after birth. If it remains open for over a year, it may indicate a congenital heart defect known as patent ductus arteriosus. Previously, high doses of aspirin were used to treat this condition, but this treatment was not very effective. Patients with patent ductus arteriosus should instead consider minimally invasive interventional treatments to seal the duct, or surgical ligation can be performed. However, surgical ligation may cause significant trauma or scarring to the patient. The majority of cases with patent ductus arteriosus can be treated using minimally invasive methods.