coronary thrombosis (redirected from coronary thromboses)

thrombosis /throm·bo·sis/ (throm-bo´sis) the formation or presence of a thrombus.thrombot´ic

---

cerebral thrombosis  thrombosis of a cerebral vessel, which may result in cerebral infarction.

coronary thrombosis  thrombosis of a coronary artery, usually associated with atherosclerosis and often causing sudden death or myocardial infarction.

deep venous thrombosis  thrombosis of one or more deep veins, usually of the lower limb, with swelling, warmth, and erythema, frequently a precursor of pulmonary embolism.

---

coronary thrombosis

n.

Obstruction of a coronary artery by a thrombus, often leading to destruction of heart muscle.

---

coronary thrombosis,

development of a thrombus that blocks a coronary artery, often causing myocardial infarction and death. Coronary thromboses commonly develop in segments of arteries with atherosclerotic lesions.

---

thrombosis (thrombō´sis),

n presence of a clot or deposit in a blood vessel, formed in situ and remaining in place. An abnormal vascular condition in which a thrombus (blood clot) develops within a blood vessel of the body.

thrombosis, cavernous sinus,

n a blood clot in the cavernous sinus occasionally arising from maxillary periapical infection. The prognosis is poor but not so grave as before antibiotic therapy.

thrombosis, coronary,

n thrombosis of the coronary artery; also called
heart attack and
coronary occlusion.

---

coronary

encircling in the manner of a crown.

1. a term applied to vessels, ligaments, nerves, the band at the skin-hoof junction.

2. blood vessels partially encircling the heart.

---

coronary arteries

two large arteries that branch from the ascending aorta and supply all of the heart muscle with blood. See also Table 9.

coronary artery anomaly

one or both arteries originate from the pulmonary artery instead of the aorta; anoxia of the myocardium leads to congestive heart failure.

coronary artery laceration

in foals during a difficult parturition and in cattle due to penetration by a reticular foreign body; sudden death due to cardiac tamponade.

coronary artery rupture

can result from perforation by a foreign body from the reticulum as part of the syndrome of traumatic reticular pericarditis. Cardiac tamponade results, causing acute or congestive heart failure.

coronary band

the junction of the skin and the horn of the hoof.

coronary chemoreflex

intravenous injection of chemicals such as veratridine causes cardiac slowing, hypotension and apnea due to reflex response by the myocardium. Called also Bezold-Jarisch reflex.

coronary cushion

the spongy, resilient hypodermis beneath the coronary corium of the hoof.

coronary emboli

lodgment of an embolus in a coronary artery is a rare occurrence in animals. Myocardial ischemia and asthenia result, the effect on the animal varying with the amount of muscle compromised.

coronary occlusion

the occlusion, or closing off, of a coronary artery. The occlusion may result from formation of a clot (thrombosis). Narrowing of the lumen of the blood vessels by the plaques of atherosclerosis, as occurs in humans, does not occur in animals. If there is adequate collateral circulation to the heart muscle at the time of the occlusion, there may be little or no damage to the myocardial cells. When occlusion is complete, however, with no blood being supplied to an area of the myocardium, myocardial infarction results.

coronary perfusion pressure

the difference between aortic diastolic and right atrial diastolic pressure; a determinant of the blood flow to cardiac muscle.

coronary thrombosis

formation of a clot in a coronary artery. See also myocardial infarction.

---

coronary thrombosis

Cardiology A thrombus in a coronary artery lumen, which may cause an acute MI; thrombi form when microscopic cracks in the atherosclerotic coronary artery wall expose collagen and trigger platelet adhesion and thrombus formation