Pulmonary Infarction: What It Is, Why It Matters, and When to Seek Help
Pulmonary Infarction: What It Is, Why It Matters, and When to Seek Help
Pulmonary infarction is a serious condition in which part of the lung is damaged or dies because it does not receive enough blood and oxygen. The most common cause is a blood clot in the lung.
What Is Pulmonary Infarction?
A blood clot may form in a deep vein—often in the leg—and travel through the bloodstream until it blocks an artery in the lung. This blockage is called a pulmonary embolism (PE). If the interruption in blood flow causes lung tissue to die, it is called a pulmonary infarction.
The terms are related but not interchangeable: a pulmonary embolism is the blockage, while a pulmonary infarction is the resulting tissue injury. Not every pulmonary embolism causes an infarction.
Why Does It Matter?
Pulmonary embolism can reduce oxygen levels, strain the heart, damage the lungs, and become life-threatening. Pulmonary infarction may also cause inflammation, chest pain, bleeding into lung tissue, and scarring.
Risk of a clot-related pulmonary embolism may be higher after surgery or extended immobility, during or shortly after pregnancy, with certain cancers or heart and lung conditions, while using some estrogen-containing medicines, and in people with obesity, inherited clotting conditions, or a history of blood clots.
Warning Signs
Possible symptoms include:
-
Sudden or worsening shortness of breath
-
Rapid breathing or a fast heartbeat
-
Sharp chest pain that worsens with a deep breath or cough
-
Coughing up blood
-
Lightheadedness, very low blood pressure, or fainting
-
Pain, redness, warmth, or swelling in one leg, which may indicate deep-vein thrombosis
Some people may have few warning signs. Because these symptoms can resemble other conditions, pulmonary infarction cannot be diagnosed from symptoms alone. Clinicians may use a medical history, examination, blood tests, and imaging.
When to Seek Help
Sudden breathing difficulty, unexplained chest pain, fainting, or coughing up blood should be treated as a medical emergency. Call emergency services immediately rather than waiting for the symptoms to improve.
Treatment depends on the cause and severity. When pulmonary embolism is responsible, treatment commonly includes anticoagulants to prevent clots from growing and new clots from forming. Severe cases may require clot-dissolving medication or a procedure to remove the clot. Early medical evaluation can reduce the risk of serious complications.
References
Medical disclaimer: This article provides general educational information and is not a substitute for professional medical advice, diagnosis, or treatment.
Pulmonary Infarction: What It Is, Why It Matters, and When to Seek Help
Pulmonary infarction is a serious condition in which part of the lung is damaged or dies because it does not receive enough blood and oxygen. The most common cause is a blood clot in the lung.
What Is Pulmonary Infarction?
A blood clot may form in a deep vein—often in the leg—and travel through the bloodstream until it blocks an artery in the lung. This blockage is called a pulmonary embolism (PE). If the interruption in blood flow causes lung tissue to die, it is called a pulmonary infarction.
The terms are related but not interchangeable: a pulmonary embolism is the blockage, while a pulmonary infarction is the resulting tissue injury. Not every pulmonary embolism causes an infarction.
Why Does It Matter?
Pulmonary embolism can reduce oxygen levels, strain the heart, damage the lungs, and become life-threatening. Pulmonary infarction may also cause inflammation, chest pain, bleeding into lung tissue, and scarring.
Risk of a clot-related pulmonary embolism may be higher after surgery or extended immobility, during or shortly after pregnancy, with certain cancers or heart and lung conditions, while using some estrogen-containing medicines, and in people with obesity, inherited clotting conditions, or a history of blood clots.
Warning Signs
Possible symptoms include:
-
Sudden or worsening shortness of breath
-
Rapid breathing or a fast heartbeat
-
Sharp chest pain that worsens with a deep breath or cough
-
Coughing up blood
-
Lightheadedness, very low blood pressure, or fainting
-
Pain, redness, warmth, or swelling in one leg, which may indicate deep-vein thrombosis
Some people may have few warning signs. Because these symptoms can resemble other conditions, pulmonary infarction cannot be diagnosed from symptoms alone. Clinicians may use a medical history, examination, blood tests, and imaging.
When to Seek Help
Sudden breathing difficulty, unexplained chest pain, fainting, or coughing up blood should be treated as a medical emergency. Call emergency services immediately rather than waiting for the symptoms to improve.
Treatment depends on the cause and severity. When pulmonary embolism is responsible, treatment commonly includes anticoagulants to prevent clots from growing and new clots from forming. Severe cases may require clot-dissolving medication or a procedure to remove the clot. Early medical evaluation can reduce the risk of serious complications.
References
Medical disclaimer: This article provides general educational information and is not a substitute for professional medical advice, diagnosis, or treatment.
