•Clots in ~ blood vessels can obstruct blood flow and also cause blockages in organs•Types: venous thromboembolism, pulmonary embolism, coronary thrombosis•Treatment has a combination of medical and surgical procedures, as well as medications•Involves cardiovascular medicine, interventional cardiology


You are watching: A blood clot attached to the interior wall of a vein or artery

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Blood clots space usually harmless. They kind whenever we cut or scrape our skin or bump into something and also get a bruise. However, when blood clots type within blood vessels they can obstruct blood flow, a condition called thrombosis. That might mean trouble. If a clot in one artery breaks free and travels v the circulatory system, it can cause blockages affecting the heart, lungs, and also other organs—potentially shutting lock down.

The results deserve to be deadly. Thrombosis affects as much as 900,000 human being in the United says per year and also kills approximately 100,000.

“At Yale Medicine, patients with suspected thrombosis obtain evaluated very quickly,” says Michael Remetz, MD, a Yale medicine interventional cardiologist. Because that blood clots that affect the heart: “That is valuable time as soon as the heart is being damaged. If a large part of the love is affected, long-term heart damages results, or it deserve to be fatal.”


There are three types—venous thromboembolism, pulmonary embolism, and also coronary thrombosis. Venous thromboembolism wake up in veins or arteries, most generally in the legs. As soon as a blood clot travels come the lungs and causes a blockage of one artery, it’s called a pulmonary embolism. Coronary thrombosis is a blockage of an artery in the heart, which have the right to lead come a love attack.


Normal blood clots happen whenever yes an injury to the cell lining blood vessels. However, abnormal blood clots can form if there space unusual sport in blood flow, such as those resulted in by conditions including valvulitis and aneurysm, or because of problems that reason blood to clot unnecessarily, such as leukemia or element V mutation.

Coronary thrombosis can happen when arteries become clogged v cholesterol and also fat, do it difficult for blood to flow through.

Additional risk determinants for blood clots include:

weight problems pregnant sit for expanded periods the time cigarette smoking dental contraceptives Injury or surgery age (increased threat for people over age 60) A family history of blood clots Chronic inflammatory conditions

Symptoms the thrombosis in veins (which usually influence the legs) include: swelling, pain,, and also cramping.

Symptoms of pulmonary embolism (a blood gerean that has actually traveled right into the lungs) incorporate shortness the breath, chest pain, and coughing.

Symptoms the coronary thrombosis (a blood clot that develops in the heart) encompass severe pain in the chest and arm, sweating and trouble breathing.




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The blood clots deserve to be treated through a combination of medical and also surgical procedures. The an initial line of defense is blood-thinning medications, such as warfarin, which deserve to prevent brand-new clots from forming while the body works to rest up existing clots. Aspirin, a blood thinner, is likewise used. A course of medications called thrombolytics deserve to dissolve coagulation even more quickly, yet can increase the danger of bleeding.

Doctors may additionally opt to do surgery to remove the blood clot.


At Yale Medicine, ours cardiology team is comprised of leading researcher in the field. They conduct clinical trials for drugs that might not however be easily accessible on the market and also use their understanding to far better diagnose and also treat blood clots.

In addition, because that blood coagulation affecting the heart, our cardiologists work very closely with the emergency department of area hospitals to treat patient as easily as possible. They sirloin patients come our catheterization lab either by ambulance or helicopter, wherein our experienced clinicians execute diagnostic procedures, such as state-of-the art blood tests and also cardiac catheterization. The last is a procedure wherein a catheter is threaded right into the affected veins and also arteries to clean them.

“The very first two hrs of a heart trouble is when there is most damages to the heart,” states Dr. Remetz.