Can pulmonary hypertension cause headaches?

Written by Wang Chun Mei
Pulmonology
Updated on May 06, 2025
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Pulmonary hypertension is a clinically complex disease with a wide range of causes. Consequently, the symptoms it presents in patients are numerous and complicated. Typically, patients with increasing pulmonary hypertension may experience varying degrees of shortness of breath after activity, chest tightness, dizziness, as well as chest pain, palpitations, and fainting. Generally, it does not cause headaches. However, many cases of pulmonary hypertension might also involve conditions such as hypertension, or other diseases that could lead to headaches. When pulmonary hypertension is worsening, it might coincide with an increase in blood pressure, which could also trigger headaches at that time. Therefore, it is important to differentiate in clinical practice; primary pulmonary hypertension generally does not cause headaches but can cause dizziness.

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Written by Li Qiang
Intensive Care Unit
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Is pulmonary hypertension serious?

Whether pulmonary arterial hypertension (PAH) is serious depends on the cause and the severity of the PAH. It is generally categorized into mild, moderate, and severe. If the PAH is caused by diseases such as pulmonary embolism and is severe, this condition is very serious and may lead to sudden death. If it is chronic pulmonary arterial hypertension with also a severe degree and lasts for a long time, it can lead to right heart failure, and subsequently right heart failure may cause left heart failure, which is also a very serious issue. If the pulmonary hypertension is a reversible, mild condition, such as due to embolism in the pulmonary artery branches which resolves after the embolism is cleared, then the PAH can easily recover, and in this case, it is not serious. However, if it is caused by chronic lung diseases such as chronic obstructive pulmonary disease or pulmonary interstitial fibrosis leading to chronic pulmonary hypertension, it is quite serious because it is a progressively worsening disease. The pulmonary artery pressure will not decrease, and over time it will gradually worsen, eventually leading to heart failure.

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Written by Li Hai Wen
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Which department should pulmonary hypertension be registered under?

Pulmonary hypertension is becoming increasingly common in our daily lives. Pulmonary hypertension refers to a condition where the pressure in the pulmonary artery exceeds 30 mmHg. If you have pulmonary hypertension and need to see a doctor, you might wonder which department to visit in such a large hospital with many departments. As the name implies, pulmonary hypertension is primarily characterized by an increase in pressure in the pulmonary artery. Therefore, you can make an appointment with the Department of Cardiology. Additionally, the Department of Respiratory Medicine or the Department of Vascular Surgery are also suitable options for seeking treatment.

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Does pulmonary hypertension require oxygen therapy?

Whether pulmonary arterial hypertension requires oxygen therapy primarily depends on the patient's blood oxygen saturation level at rest. Generally, it is recommended to measure the oxygen saturation for patients with pulmonary arterial hypertension. Due to intrapulmonary shunting and shunting between the left and right heart during pulmonary arterial hypertension, arterial and venous blood mix directly, resulting in very low blood oxygen saturation in patients. Generally speaking, if the measured blood oxygen saturation at rest is below 90%, such patients often need oxygen therapy. Even if it does not drop below 90%, patients with moderate to severe pulmonary arterial hypertension also require oxygen therapy. Oxygen therapy can improve hypoxia, significantly dilating the pulmonary vessels and thus alleviating symptoms of high pulmonary artery pressure. It is very valuable for improving patient prognosis and survival time.

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What to do with mild pulmonary hypertension?

Pulmonary artery hypertension is a relatively common disease in daily life. Based on the different pulmonary artery pressures, it can be divided into mild, moderate, and severe pulmonary artery hypertension. When the right heart catheter measures pulmonary artery pressure between 30 to 50 mmHg, this situation often belongs to mild pulmonary artery hypertension. So, what should one do if diagnosed with mild pulmonary artery hypertension? Generally, mild pulmonary artery hypertension is not serious and usually does not cause noticeable symptoms, so no special treatment is needed. However, having mild pulmonary artery hypertension does not mean it can be taken lightly. It is important to undergo regular examinations under the guidance of a doctor, identify the cause of the increased pulmonary artery pressure, and treat the symptoms timely.

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Can pulmonary hypertension cause coughing?

Pulmonary arterial hypertension is a commonly seen clinical condition with complex causes, which may arise from various cardiac, pulmonary, and pulmonary vascular diseases. When pulmonary arterial hypertension occurs, due to increased resistance in the pulmonary circulation, the load on the right heart will increase, eventually leading to right heart failure, thus causing a series of clinical manifestations. In the early stages, pulmonary arterial hypertension may not present with obvious symptoms, and discomfort may be felt during intense exercise, with most patients showing shortness of breath after activity. During the compensatory period of pulmonary heart function, symptoms such as palpitations, shortness of breath, fatigue, and decreased endurance may occur during activities, and acute infections can also exacerbate these conditions, potentially causing mild chest pain or hemoptysis. Some patients may exhibit signs of heart dysfunction, like coughing and expectorating phlegm.