Is pulmonary embolism related to pneumonia?

Written by Wei Shi Liang
Intensive Care Unit
Updated on September 05, 2024
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If unexplained shortness of breath, pleuritic chest pain, tachycardia, and decreased oxygen saturation occur, one should be highly vigilant about pulmonary embolism. Generally, pulmonary embolism has no direct relationship with pneumonia. High-risk factors for pulmonary embolism include obesity, prolonged immobilization, stroke, congestive heart failure, malignant tumor, inflammatory bowel disease, lower limb fracture, anesthesia time exceeding 30 minutes, and acquired or genetic hypercoagulable state. It usually manifests as difficulty breathing, rapid breathing, and pleuritic chest pain.

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Written by An Yong Peng
Pulmonology
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Can pulmonary embolism cause bloating and abdominal distension?

Pulmonary embolism can, in rare cases, cause bloating and abdominal distension. The primary clinical manifestations of pulmonary embolism are chest tightness and difficulty breathing. Severe pulmonary embolism can also lead to a drop in blood pressure and sometimes may even cause the patient to faint. However, it is important to note that in severe cases of pulmonary embolism, patients may also experience abdominal distension. Patients with pulmonary embolism might also have acute pulmonary heart disease, which could include symptoms of gastrointestinal congestion. In such cases, patients may experience abdominal bloating. Additionally, there is a special condition known as chronic thromboembolic pulmonary hypertension, where patients may experience chronic pulmonary heart disease and chronic hypoxia, which can also lead to abdominal distension.

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Written by Yuan Qing
Pulmonology
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Why do patients with pulmonary embolism feel sleepy?

Patients with pulmonary embolism primarily suffer from emboli within the venous system, which travel back to the right heart and then become lodged in the pulmonary artery, forming a pulmonary artery thrombus. This reduces pulmonary blood flow and impacts the exchange of air in the lungs, leading to hypoxia in the patient. Following hypoxia, the brain tends to enter a sleepy state, thus many patients with pulmonary embolism exhibit sleepiness. This sleepiness is related to the pathophysiological mechanisms of pulmonary embolism. At this point, it is crucial to provide sufficient oxygen to the patient to address their hypoxemia. Ultimately, the most fundamental treatments are prompt thrombolysis or anticoagulation therapy to resolve the embolus, addressing the condition fundamentally.

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Written by Wang Li Bing
Intensive Care Medicine Department
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Pulmonary embolism belongs to which department?

Pulmonary embolism mainly refers to the detachment of thrombi in the blood, leading to the obstruction of the main trunk of the pulmonary artery and its branches, causing a series of syndromes. Pulmonary embolism is an emergency in clinical practice. If the patient's circulation becomes unstable after the embolism, thrombolytic therapy should be considered. If the patient's respiratory circulation remains stable after the embolism, anticoagulation therapy can be considered. In clinical practice, pulmonary embolism is primarily diagnosed through pulmonary artery CTA examination to further clarify the diagnosis, and patients generally consult the respiratory medicine department.

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Written by Yuan Qing
Pulmonology
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Is it good to place a filter for pulmonary embolism or not?

Whether it is good or not to place a filter for pulmonary embolism mainly depends on the cause of the pulmonary embolism and whether there are indications for placing a filter. Generally speaking, if pulmonary embolism is caused by the formation of blood clots in the lower limbs or the inferior vena cava, placing a filter can generally be beneficial. However, not all cases of lower limb venous thrombosis require a filter. Filters are usually only used for deep or large vein thromboses that are not suitable for thrombectomy or thrombolysis treatments. If a filter is placed under other conditions, it is very likely that thrombosis will re-form on the surface of the filter, potentially leading to some recurrent pulmonary embolisms or iatrogenic pulmonary embolisms. Therefore, the decision to place a filter is complex and requires a doctor to weigh the pros and cons before deciding whether or not to proceed.

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Written by Wei Shi Liang
Intensive Care Unit
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Can a pulmonary embolism be detected by a CT scan?

CT can detect acute pulmonary embolism, using CT angiography, which is the preferred imaging method for diagnosing pulmonary embolisms. It mainly shows central filling defects, as well as eccentric and abdominal wall filling defects, and complete filling defects. A diagnosis of pulmonary embolism can be made through the visualization of these filling defects on a CT scan. Additionally, some indirect signs, such as pulmonary hypertension, right ventricular enlargement, and the common mosaic sign, can also be observed. These are characteristic CT manifestations of acute pulmonary embolism.