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Glucagon-induced vasospasm of hepatic artery branches during visceral angiography

T Scott Dziedzic1, Tony P Smith

  • 1Department of Radiology, Duke University Medical Center, Room 1502, Durham, NC 27710, USA.

Cardiovascular and Interventional Radiology
|October 9, 2007
PubMed

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Vascular Spasm

The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last for...