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Related Concept Videos

Introduction to Hemostasis01:05

Introduction to Hemostasis

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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.
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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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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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...
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Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow01:26

Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow

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Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug...
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Esophageal Varices-II: Clinical Features and Management01:28

Esophageal Varices-II: Clinical Features and Management

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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.
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

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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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Secondary analysis of data from the HeLiX trial regarding the association between estimated blood loss and post-hepatectomy outcomes: towards the definition of a minimal clinically significant difference.

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Updated: Mar 23, 2026

Application of Hemostatic Devices in Laparoscopic Hepatectomy
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Application of Hemostatic Devices in Laparoscopic Hepatectomy

Published on: April 19, 2022

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Hemostasis and Hepatic Surgery.

Gareth Eeson1, Paul J Karanicolas1

  • 1Division of General Surgery, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Room T2016, Toronto, ON M4N 3M5, Canada.

The Surgical Clinics of North America
|March 29, 2016
PubMed
Summary
This summary is machine-generated.

Minimizing operative blood loss is crucial in hepatic resection to reduce patient morbidity and mortality. This review covers strategies for blood loss reduction and allogeneic blood transfusion in oncologic liver surgery.

Keywords:
Blood lossBlood transfusionHemostasisLiver resectionLow central venous pressureParenchymal transectionTopical hemostatic agentsVascular occlusion

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Area of Science:

  • Hepatobiliary Surgery
  • Surgical Oncology
  • Transfusion Medicine

Background:

  • Hepatic resection carries significant risks, including substantial operative blood loss.
  • Blood loss can lead to increased morbidity, mortality, and the need for allogeneic blood transfusions.

Purpose of the Study:

  • To review current strategies for minimizing blood loss during oncologic hepatic surgery.
  • To discuss the appropriate use of allogeneic blood transfusions in this patient population.

Main Methods:

  • Literature review of studies on blood loss management in liver surgery.
  • Analysis of techniques and transfusion guidelines relevant to oncologic hepatic resection.

Main Results:

  • Various surgical techniques and anesthetic approaches can effectively reduce blood loss.
  • Judicious use of allogeneic blood transfusions is essential, guided by patient-specific factors and transfusion thresholds.

Conclusions:

  • Effective management of blood loss is paramount for improving outcomes in oncologic liver surgery.
  • Optimizing surgical techniques and transfusion strategies can enhance patient safety and reduce complications.