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Vascular Spasm01:16

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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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Hemostasis, the process that stops bleeding after a blood vessel injury, is crucial for maintaining the integrity of the circulatory system. However, disorders of hemostasis can disrupt this delicate balance, leading to either excessive clotting or bleeding. These disorders can be broadly classified into thromboembolic disorders and bleeding disorders.
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Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
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Hemostasis is a complex physiological process that prevents excessive bleeding when a blood vessel is injured. It's crucial for maintaining the integrity of the circulatory system, as it ensures that our blood remains fluid while still within the vascular network and yet clots to prevent blood loss upon vessel injury.
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Epistaxis, or nosebleeds, occurs when small, swollen blood vessels in the nasal mucous membrane rupture. Typically, the anterior septum is the primary site of occurrence.
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Autologous Blood Injection to Model Spontaneous Intracerebral Hemorrhage in Mice
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Spontaneous soft tissue hematomas.

A Dohan1, L Darnige2, M Sapoval3

  • 1Université Paris-Diderot, 10, rue de Verdun, 75010 Paris, France; Inserm U965, French National Institute for Health and Medical Research Unit 965, France; Assistance publique-Hôpitaux de Paris, Hôpital Lariboisière, Visceral and Vascular Radiology Department, 2, rue Ambroise-Paré, 75475 Paris, France.

Diagnostic and Interventional Imaging
|June 13, 2015
PubMed
Summary
This summary is machine-generated.

Spontaneous muscle hematomas, a complication of anticoagulant therapy, are increasingly common. Computed tomography angiography (CTA) aids diagnosis, guiding arterial embolization for active bleeding with high success rates.

Keywords:
Angio-computed tomographyEmbolizationHematomas of soft tissueMuscle hematomas

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Area of Science:

  • Radiology
  • Vascular Interventions
  • Anticoagulant Therapy Complications

Background:

  • Spontaneous muscle hematomas are a serious complication of anticoagulant treatment.
  • The incidence of these hematomas is rising due to increased anticoagulant use.
  • Radiological management is crucial for diagnosis and intervention.

Purpose of the Study:

  • To highlight the role of radiological management in spontaneous muscle hematomas.
  • To emphasize the diagnostic and interventional capabilities of computed tomography angiography (CTA).
  • To present arterial embolization as an effective treatment for active bleeding.

Main Methods:

  • Computed tomography angiography (CTA) for diagnosis and severity assessment.
  • Identification of active contrast material extravasation.
  • Interventional planning and execution of arterial embolization.

Main Results:

  • CTA is the primary tool for detecting hemorrhage and guiding treatment.
  • Active contrast leak on CTA indicates the need for arterial embolization.
  • Arterial embolization demonstrates high technical (90%) and clinical (86%) success rates.

Conclusions:

  • Radiological management, particularly CTA, is vital for spontaneous muscle hematomas.
  • CTA facilitates precise diagnosis and planning of interventional procedures.
  • Arterial embolization is an effective treatment for active bleeding in these hematomas.