Key Takeaways:
- Pulmonary embolism can develop suddenly and is often difficult to detect due to symptoms that overlap with other common conditions like asthma or chest infections.
- Warning signs such as unexplained breathlessness, chest discomfort, or dizziness should not be ignored, especially in individuals with known or suspected risk factors.
- Less recognised triggers, including certain medications, autoimmune conditions, and post-COVID complications, may increase the likelihood of developing blood clots.
- Early diagnosis and appropriate management, including lifestyle adjustments and ongoing monitoring, are essential for recovery and long-term health outcomes.
Introduction
Pulmonary embolism is a condition that occurs when a blood clot travels to the lungs and blocks one of the pulmonary arteries. This interruption in blood flow can reduce oxygen levels and place strain on the heart. In many cases, the clot begins in a deep vein in the leg, known as deep vein thrombosis (DVT), before moving through the bloodstream.
Because the symptoms can be subtle or easily mistaken for other health concerns, pulmonary embolism may go unnoticed until it causes serious complications. Some might experience mild discomfort, while others may face sudden and severe effects.
In this article, we take a closer look at what happens during a pulmonary embolism, how to recognise possible warning signs, and why pulmonary embolism awareness is vital for timely recognition and care.
What Happens Inside the Body During a Pulmonary Embolism?
A pulmonary embolism typically starts when a blood clot forms in a deep vein, often in the lower leg or thigh. If the clot dislodges, it can travel through the bloodstream and become stuck in a pulmonary artery, which limits blood flow to part of the lung and reduces the amount of oxygen reaching the rest of the body.
This drop in oxygen can make breathing more difficult, and the heart may be forced to work harder to keep blood circulating. In some cases, the blockage causes only minor symptoms, but if the clot is large or there are multiple clots, the strain on the lungs and heart can become life-threatening.
Are the Warning Signs Always Obvious?
The symptoms of pulmonary embolism can vary, and they may sometimes be mistaken for other conditions. One common sign is shortness of breath that begins suddenly, even without physical activity. Some individuals may feel chest discomfort that worsens when breathing deeply or moving. A persistent cough may also develop, sometimes with blood-streaked mucus.
Other possible symptoms include feeling faint, light-headed, or noticing a rapid heartbeat. In some instances, the skin may appear pale or take on a bluish tone, particularly around the lips or fingertips, due to low oxygen levels.
Raising pulmonary embolism awareness can help more people recognise these warning signs earlier, especially if they have risk factors such as recent surgery, limited mobility, or a history of clotting.
What Triggers Pulmonary Embolism Beyond the Usual Causes?
While prolonged immobility, recent surgery, and pregnancy are widely recognised risk factors for pulmonary embolism, there are other potential triggers that may be less familiar. Some blood clots develop without noticeable symptoms, a situation known as silent deep DVT, and may only become apparent once they reach the lungs.
Certain medications, such as hormone-based treatments and some chemotherapy drugs, can increase the risk of clot formation. Chronic inflammatory conditions, including lupus and rheumatoid arthritis, have also been linked to changes in the body’s clotting response. Additionally, some individuals may experience clotting issues after recovering from COVID-19. Regular dehydration, particularly when combined with other risk factors, may further increase the likelihood of clots by thickening the blood.
Those exploring varicose vein surgery for long-standing vein concerns may find it helpful to understand how these and other factors could influence clotting risk over time.
Why Pulmonary Embolism Is Sometimes Misdiagnosed
Diagnosing a pulmonary embolism can be difficult because its symptoms often overlap with other medical conditions. Chest discomfort, breathlessness, and fatigue are also seen in respiratory infections, asthma, or anxiety-related concerns. This similarity can lead to delays in diagnosis or treatment.
To confirm the presence of a clot, doctors may use imaging tests such as CT pulmonary angiography, which helps detect blockages in the lungs. Blood tests like the D-dimer can indicate clotting activity, but the results are not always conclusive on their own. If DVT is suspected, an ultrasound scan of the legs may be performed to identify a possible source of the clot. This is particularly useful when there are no apparent symptoms in the lower limbs.
Improving pulmonary embolism awareness can support earlier recognition of symptoms and risk factors. Consulting with a vascular specialist in Singapore may be appropriate if there is a personal or family history of clot-related conditions or if symptoms remain unexplained after other causes have been ruled out.
What Happens After a Pulmonary Embolism?
Treatment following a pulmonary embolism typically involves medication to prevent further clots. Blood thinners are commonly prescribed, with the duration depending on the individual’s overall health, medical history, and any contributing risk factors. While some recover quickly, others may experience lingering shortness of breath or fatigue.
In situations where the arteries in the lungs have sustained more lasting effects, pulmonary hypertension may develop. This condition places additional pressure on the heart and may require ongoing management. Long-term care often includes staying physically active, keeping well hydrated, and addressing any underlying medical conditions.
For those who have had a pulmonary embolism without an identifiable cause or who have had recurrent clots, further investigations, such as genetic testing, may be recommended. An assessment at a vein clinic in Singapore can also help determine whether additional vascular concerns must be addressed.
Maintaining pulmonary embolism awareness is essential not only during the event itself but also in understanding what recovery and future prevention may involve.
Why Awareness Is Essential, Even If You Have No Symptoms
Not everyone who develops a pulmonary embolism experiences apparent symptoms or fits the typical risk profile. Sometimes, the condition may go unnoticed until it causes serious health issues. This is why improving pulmonary embolism awareness remains crucial. It helps individuals recognise early signs and consider timely medical review.
If you’ve been experiencing breathlessness, chest discomfort, or other signs that don’t have a clear explanation, it may be time to consider a full vascular review.
UNITAS Vein and Endovascular Clinic offers evaluation and treatment for a range of vein and circulatory conditions, including clot-related concerns. The clinic supports individuals at different stages of their health journey, from early signs to post-event care.
Book a consultation to explore your options and take proactive steps towards better vascular health.
