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Hemostasis is a crucial process that prevents excessive blood loss from damaged blood vessels. It involves various mechanisms such as vasoconstriction, platelet adhesion and activation, and fibrin formation. The importance of each mechanism depends on the type of vessel injury. In contrast, thrombosis is the abnormal formation of a blood clot within the blood vessels, leading to potential complications if the clot obstructs blood flow. Thrombosis can be caused by increased coagulability of the...
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Spinal anesthetics are given during lower abdomen and limb surgeries to block sensory and motor neurons. They are administered in the mid to low lumbar regions, primarily acting on the cauda equina's nerve roots. The blockade level depends on the local anesthetic (LA) concentration. Usually, low LA concentrations are sufficient to block sensory fibers, while only high LA concentrations block motor fibers. Other factors like injection volume and speed, the patient's posture, and the drug...
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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...
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Topical hemostatic agents in spinal surgery.

Feng Shen1, Jian Ding1, Yuelei Wang1

  • 1Department of Spine Surgery, Affiliated Hospital of Qingdao University, No.16 Jiangsu Road, Shinan District, Qingdao, Shandong Province, China.

The Spine Journal : Official Journal of the North American Spine Society
|January 14, 2024
PubMed
Summary
This summary is machine-generated.

Effective hemostasis is crucial in spinal surgery due to significant blood loss. This review examines topical hemostatic agents, their mechanisms, and applications in spinal procedures to minimize complications.

Keywords:
ApplicationCommercial productsMechanism of actionSpine surgeryTopical hemostatic agents

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Area of Science:

  • Neurosurgery
  • Surgical Innovation

Background:

  • Spinal surgery often involves substantial intraoperative blood loss, increasing complication risks.
  • Conventional hemostatic methods are often inadequate for specific bleeding sites in spinal procedures, such as osseous and epidural venous plexus bleeding.

Purpose of the Study:

  • To comprehensively review currently available topical hemostatic agents.
  • To summarize their mechanisms of action, applications, and potential use in spinal surgery.

Main Methods:

  • Systematic review of topical hemostatic agents.
  • Analysis of mechanisms, applications, and adverse reactions.

Main Results:

  • Topical hemostatic agents utilize diverse mechanisms for hemostasis.
  • These agents serve multiple roles in spinal surgery, including hemostasis, dura mater repair, drug delivery, skin closure, and fibrosis prevention.
  • Compressive neurological complications are the most frequent adverse events associated with hemostatic agents.

Conclusions:

  • Optimal utilization of hemostatic agents in spinal surgery requires matching agent characteristics with clinical conditions and efficacy.
  • Understanding the features, indications, and potential adverse reactions is vital for safe and effective application.