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Related Concept Videos

Introduction to Hemostasis01:05

Introduction to Hemostasis

10.0K
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.
The three phases of hemostasis involve many clotting factors present in plasma and several substances released by platelets and injured tissue cells. It is a fast, localized,...
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Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

Anticoagulant Drugs: Low-Molecular-Weight Heparins

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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...
1.1K
Extrinsic and Intrinsic Pathways of Hemostasis01:20

Extrinsic and Intrinsic Pathways of Hemostasis

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Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
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Venous Thrombosis III: Interprofessional Care01:29

Venous Thrombosis III: Interprofessional Care

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Venous thrombosis requires effective prevention and treatment strategies to improve patient outcomes and reduce potential complications.Prevention StrategiesHealthcare providers must prioritize preventing venous thromboembolism (VTE) for all adult patients upon admission. Interventions depend on bleeding and thrombosis risk, medical history, current medications, diagnoses, planned procedures, and patient preferences. Patients on bed rest should change positions every two hours and, if not...
65
Esophageal Varices-II: Clinical Features and Management01:28

Esophageal Varices-II: Clinical Features and Management

181
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.
In the initial assessment, a thorough review of the patient's medical history is vital to identify risk factors such as liver disease, alcohol...
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Disorders of Hemostasis01:24

Disorders of Hemostasis

1.4K
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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Updated: Oct 23, 2025

Application of Hemostatic Devices in Laparoscopic Hepatectomy
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Common haemostatic techniques used in surgical practice.

Georgina H Frew1, Lachlan Dick1, Jamie Young1

  • 1Department of General Surgery, Borders General Hospital, Melrose, UK.

British Journal of Hospital Medicine (London, England : 2005)
|August 25, 2021
PubMed
Summary

Effective intraoperative hemostasis is crucial for better patient outcomes by minimizing blood loss. This review covers various surgical techniques for achieving a bloodless surgical field during operations.

Keywords:
BleedingBlood lossCoagulationDiathermyElectrosurgeryHaemostasis

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Area of Science:

  • Surgical Techniques
  • Hemostasis
  • Patient Outcomes

Background:

  • Intraoperative bleeding complicates surgical procedures and negatively impacts patient outcomes.
  • Achieving adequate intraoperative hemostasis is vital for a clear surgical field and reduced blood loss.
  • Numerous mechanical, thermal, and energy-based methods exist, each with unique advantages and disadvantages.

Purpose of the Study:

  • To review common surgical techniques used for maintaining intraoperative hemostasis.
  • To provide an overview of methods for controlling bleeding during surgery.

Main Methods:

  • Review of commonly employed surgical hemostasis techniques.
  • Discussion of factors influencing technique selection, including patient and procedural variables.
  • Analysis of benefits and drawbacks of different hemostatic methods.

Main Results:

  • A variety of hemostatic techniques are available for surgical application.
  • Surgeon preference, patient factors, and procedure specifics guide the choice of hemostatic method.
  • Each technique presents a distinct profile of efficacy and potential complications.

Conclusions:

  • Selection of appropriate hemostatic techniques is critical for successful surgical outcomes.
  • Understanding the nuances of different methods allows surgeons to optimize bleeding control.
  • Continued evaluation of hemostatic techniques is important for improving patient safety and surgical results.