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Lewis Carrol: Alice In Wonderland
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Lewis Carrol: Alice In Wonderland
Bullet embolism is a rare but serious medical condition where a bullet or fragment of a bullet enters the bloodstream and travels through the blood vessels, becoming an embolus (an object that moves through the blood circulation and can cause blockage).
Bullet embolisms are typically classified by the vascular system they affect:
Arterial bullet embolism:
More common than venous.
The bullet enters an artery and moves with the direction of blood flow (away from the heart).
Can result in ischemia (restricted blood supply) to limbs or organs, requiring emergency surgery.
Venous bullet embolism:
Bullet enters the venous system and travels toward the heart.
It can lodge in the heart or lungs, potentially causing pulmonary embolism, cardiac tamponade, or even sudden death.
Paradoxical bullet embolism:
Occurs when a bullet passes from the venous to the arterial system via a cardiac defect like a patent foramen ovale or atrial septal defect.
A bullet penetrates a blood vessel without exiting the body.
If the projectile enters the lumen of the vessel and remains small enough, it can be carried by blood flow.
Once mobile, it can travel some distance and lodge in a smaller artery or vein, causing blockage.
Diagnosis Requires high clinical suspicion.
Imaging is critical:
X-rays may show bullet fragments.
CT angiography or conventional angiography helps localize the embolus.