Does patent ductus arteriosus affect appetite?

Written by Chen Tian Hua

Cardiology

Updated on May 08, 2025

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When patent ductus arteriosus (PDA) progresses to a certain extent, it can affect appetite.

If the patent ductus arteriosus causes pulmonary arterial hypertension, leading to right heart failure, it results in congestion of the gastrointestinal tract and the liver. This significantly impacts the digestive and absorption functions of the gastrointestinal tract, causing reduced appetite in the patient. Some patients may also experience nausea, vomiting, and abdominal distension.

For patients with patent ductus arteriosus, if there are indications for surgery, timely surgical treatment should be carried out to correct the anatomical abnormalities and prevent the progressive worsening of the patent ductus arteriosus, which could lead to adverse outcomes.

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Written by Xie Zhi Hong

Cardiology

1min

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What will happen if patent ductus arteriosus is not treated with surgery?

Patients with patent ductus arteriosus are characterized by a congenital connection between the pulmonary artery and the aortic arch. This is a remnant passageway that was used during embryonic development to supply blood within the umbilical vessels, ensuring the development of the infant. Normally, this ductus arteriosus may close on its own within a few months. If it does not close after one year from birth, it is considered a patent ductus arteriosus. This condition can lead to increased workload on the heart. Because it allows blood pumped into the aorta to return to the right ventricle, over time, this can increase the burden on the left ventricle as well as the right ventricle. This may lead to heart failure and, in severe cases, trigger Eisenmenger's syndrome. If this condition reaches such a state, the patient loses the opportunity for surgery, resulting in a shortened lifespan.

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Written by Xie Zhi Hong

Cardiology

39sec

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Can a patent ductus arteriosus be treated with minimally invasive surgery?

Patent ductus arteriosus refers to the condition in infants where the ductal connection between the pulmonary artery and the aortic arch from the embryonic period remains open after the first year of birth. Generally, this duct is tubular or funnel-shaped and most cases can be treated minimally invasively. Surgical treatment is considered only if there are severe adhesions involving the aorta or pulmonary artery, or there are developmental issues. Therefore, patent ductus arteriosus can be treated with minimally invasive surgery, and most cases are amenable to such treatment.

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Written by Di Zhi Yong

Cardiology

43sec

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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 Xie Zhi Hong

Cardiology

1min 28sec

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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 Fan Yan Fu

Cardiology

1min 4sec

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Does patent ductus arteriosus require open chest surgery?

Now, many cases of patent ductus arteriosus do not require open-chest surgery, as they can be treated minimally invasively by cardiologists through what is called interventional treatment. The ductus arteriosus is actually a vessel between the aorta and the pulmonary artery during the embryonic stage, which usually closes shortly after birth. If it does not close, it results in a congenital heart disease. In the past, before the widespread use of interventional treatments, open-chest surgery was required to ligate the vessel. With the broad implementation of interventional treatments, cardiologists can now treat this condition minimally invasively. This is mainly done by delivering a spring coil through a catheter to the ductus arteriosus which then blocks the vessel, allowing it to gradually close and thus achieve the therapeutic goal. Alternatively, a gelatin sponge can be delivered to the ductus arteriosus through a catheter to block and eventually close the vessel, achieving the desired treatment outcome.