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Related Concept Videos

Disorders of Hemostasis01:24

Disorders of Hemostasis

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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.
Thromboembolic Disorders
Two factors primarily cause thromboembolic conditions.
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Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

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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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Introduction to Hemostasis01:05

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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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Extrinsic and Intrinsic Pathways of Hemostasis01:20

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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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Esophageal varices often manifest as gastrointestinal bleeding episodes, presenting symptoms like hematemesis (vomiting of blood), hematochezia (passing fresh blood via the rectum), and melena (black, tarry stools). Other signs can include weight loss, anorexia, abdominal discomfort, jaundice, pruritus, altered mental status, and muscle cramps.
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Nursing management begins with a thorough assessment of the patient's health history. Key factors include trauma to veins, peripherally inserted central catheters, varicose veins, recent pregnancy or childbirth, surgery, bacteremia, prolonged bed rest, atrial fibrillation, COPD, heart failure, cancer, coagulation disorders, myocardial infarction, spinal cord injury, stroke, prolonged travel, recent bone fractures, and dehydration. Review medication intake, particularly oral contraceptives,...
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Normal Haemostasis, Inherited Bleeding Disorders and Surgery: What Does the Anaesthesiologist Need to Know?

Mihai Ștefan1,2, Daniela Filipescu1,2, Cornelia Predoi1,2

  • 1Discipline of Anaesthesiology, "Carol Davila" University of Medicine and Pharmacy, 020021 Bucharest, Romania.

Medicina (Kaunas, Lithuania)
|June 27, 2025
PubMed
Summary

Normal haemostasis is vital for preventing blood loss. This review details inherited bleeding disorders like haemophilia and von Willebrand disease (vWD) for safe surgical management.

Keywords:
haemophiliahaemostasisinherited bleeding disorderssurgeryvon Willebrand disease

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Area of Science:

  • Physiology
  • Hematology
  • Anesthesiology

Background:

  • Haemostasis is crucial for minimizing blood loss after vascular injury.
  • Understanding normal haemostasis is key for managing patients with inherited bleeding disorders.
  • Inherited bleeding disorders present surgical and anesthetic challenges due to bleeding risks.

Purpose of the Study:

  • To provide anesthesiologists with essential knowledge on normal haemostasis.
  • To review the pathophysiology of inherited bleeding disorders.
  • To outline perioperative management strategies for surgical patients with bleeding disorders.

Main Methods:

  • Literature review of existing research.
  • Analysis of current clinical guidelines.
  • Synthesis of practical approaches for risk assessment and management.

Main Results:

  • Comprehensive overview of normal haemostasis mechanisms.
  • Detailed explanation of inherited bleeding disorder pathophysiology.
  • Evidence-based strategies for perioperative bleeding risk management.

Conclusions:

  • Anesthesiologists need thorough knowledge of haemostasis and bleeding disorders for surgical patient care.
  • Effective perioperative management requires understanding pathophysiology and applying guideline-based strategies.
  • This review offers practical guidance for managing bleeding risks in surgical settings.