Can pulmonary embolism result in a vegetative state?

Written by Li Qiang

Intensive Care Unit

Updated on August 31, 2024

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After a pulmonary embolism, if it is an acute and extensive embolism and not treated promptly, it can lead to severe hypoxemia. If hypoxemia is not addressed quickly and persists, it will affect the oxygen supply to vital organs throughout the body, including the brain. The brain is the organ most vulnerable to oxygen deprivation. If there is complete lack of oxygen for just four minutes, irreversible damage occurs to the cerebral cortex, and the patient will not wake up, leading to a vegetative state. Therefore, in cases of acute extensive pulmonary embolism, if treatment is delayed, there is a significant risk of the patient entering a vegetative state, and the mortality rate is also very high. Many patients may experience sudden death.

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Written by Wei Shi Liang

Intensive Care Unit

1min 35sec

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How long does the treatment for pulmonary embolism take?

The timing of pulmonary embolism treatment mainly depends on the severity of the pulmonary embolism. The main goals of pulmonary embolism treatment are to save lives by addressing life-threatening right heart dysfunction and obstructive shock caused by the pulmonary embolism, to re-establish pulmonary vascular patency, restore lung tissue perfusion, and prevent the recurrence of pulmonary embolism. Main treatment methods include: respiratory and circulatory support, anticoagulation, thrombolysis, interventional or surgical removal of blood clots, placement of inferior vena cava filters, etc. General management: Patients who are highly suspected or diagnosed with pulmonary embolism should be closely monitored, tracking changes in respiration, heart rate, blood pressure, venous pressure, electrocardiogram, and blood gases to prevent the dislodgement of clots again. Absolute bed rest is required, and care should be taken not to overly bend the lower limbs, maintain bowel regularity, and avoid straining. For patients experiencing anxiety and panic symptoms, reassurance should be provided, along with appropriate use of sedatives. If there is chest pain, analgesics may be administered. For symptoms like fever and cough, corresponding symptomatic treatments should be given. To prevent lung infections and treat phlebitis, antibiotics may be used. Additionally, support treatments for respiratory and circulatory functions, as well as anticoagulation therapy, should be provided.

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Written by Yuan Qing

Pulmonology

1min 4sec

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Can acute pulmonary embolism be cured by anticoagulation?

Anticoagulation has a partial curative effect on acute pulmonary embolism. Based on the area of the embolism and the patient's vital signs, it is classified into mild, moderate, and severe pulmonary embolism. If it is a mild to moderate pulmonary embolism, anticoagulation can completely cure it, because anticoagulation can help the body's fibrinolytic system remove the blood clots that have already formed, and it can also prevent new clots from forming. However, in cases of severe pulmonary embolism, especially when the patient presents unstable vital signs and is in life-threatening condition, it is not advisable to rely solely on anticoagulant therapy. This is because the effect of anticoagulant treatment is relatively slow, and it requires a certain amount of time for the body's immune and fibrinolytic systems to clear the embolism. Therefore, at such times, thrombolytic treatment is recommended. Of course, this requires an experienced physician to assess the patient's vital signs and overall condition.

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Written by Liu Jing Jing

Pulmonology

46sec

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Is there a relationship between pulmonary embolism and lung cancer?

Pulmonary embolism and lung cancer can be related; common causes of pulmonary embolism include amniotic fluid embolism, air embolism, and deep vein thrombosis. In patients with lung cancer, when cancerous emboli enter the bloodstream, they can cause pulmonary embolism. Additionally, if the patient's condition is poor, with difficulties in eating, prolonged bed rest, and increased blood viscosity, deep vein thrombosis can occur, leading to pulmonary embolism. Therefore, there is no absolute relationship between pulmonary embolism and lung cancer, but lung cancer may trigger pulmonary embolism.

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Written by Li Jian Wu

Pulmonology

39sec

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Early symptoms of pulmonary embolism

In the early stages of pulmonary embolism, symptoms such as difficulty breathing, chest tightness, shortness of breath, and decreased oxygen saturation can occur. Early signs may include chest pain, as chest pain is often an initial symptom of pulmonary embolism. Sometimes the pain can be severe, and some patients may experience coughing, dry cough, and even cough up blood. There may also be symptoms of short exhalation and difficulty breathing, especially in patients with main trunk blockages, where the difficulty in breathing can be very pronounced. In more severe cases, some may experience fainting, suddenly collapsing while walking.

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Written by Wang Li Bing

Intensive Care Medicine Department

45sec

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What are the precursors of pulmonary embolism?

Pulmonary embolism is also relatively common in clinical practice. Its precursors may include varying degrees of respiratory difficulty, chest tightness, and shortness of breath, among others. If such symptoms occur, medical attention should be sought promptly, primarily to rule out the possibility of acute myocardial infarction. Pulmonary artery CTA can further confirm whether there is a pulmonary embolism. In cases of extensive pulmonary embolism, there is a high risk of sudden death, and aggressive thrombolytic and anticoagulation treatments should be administered. If the patient's chest tightness and shortness of breath are relieved after the aforementioned treatments, hospitalization for observation and treatment is still necessary.