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Related Concept Videos

Cardiac Catheterization I: Pre-Procedure Overview01:28

Cardiac Catheterization I: Pre-Procedure Overview

Cardiac catheterization is an invasive diagnostic technique used to identify and evaluate structural and functional diseases of the heart and major blood vessels. This technique diagnoses congenital heart disease, coronary artery disease, valvular heart disease, and coronary spasms and assesses ventricular function. It helps guide treatment decisions, including the need for revascularization procedures like percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) and...
Anticoagulant Drugs: Low-Molecular-Weight Heparins01:30

Anticoagulant Drugs: Low-Molecular-Weight Heparins

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...
Cardiomyopathy VII: Pre and Post Operative Nursing Management01:28

Cardiomyopathy VII: Pre and Post Operative Nursing Management

Patients with hypertrophic cardiomyopathy (HCM) and left ventricular outflow tract (LVOT) obstruction who remain symptomatic despite optimal medical therapy may undergo a septal myectomy (Morrow procedure). This procedure involves excising a portion of the hypertrophied septum below the aortic valve using a heart-lung machine to improve blood flow through the LVOT. Effective preoperative and postoperative nursing management ensures successful patient outcomes, minimizes complications, and...
Venous Thrombosis IV: Nursing Management01:30

Venous Thrombosis IV: Nursing Management

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,...
Venous Thrombosis III: Interprofessional Care01:29

Venous Thrombosis III: Interprofessional Care

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...
Pre-Procedural Guidelines for Assessing Blood Pressure01:10

Pre-Procedural Guidelines for Assessing Blood Pressure

Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the patient.

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Leitlinie der Gesellschaft für Thrombose- und Hämostaseforschung (GTH) zur Struktur- und Prozessqualität von Hämophilie-Zentren.

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[60/m-Cancer-related venous thromboembolism : Preparation for the medical specialist examination: part 128].

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Cutaneous microcirculation in patients with peripheral arterial occlusive disease: Comparison of capillary blood circulation in the nail fold of finger and toe.

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Related Experiment Video

Updated: Jun 26, 2026

Application of Hemostatic Devices in Laparoscopic Hepatectomy
04:23

Application of Hemostatic Devices in Laparoscopic Hepatectomy

Published on: April 19, 2022

[Haemostatic testing prior to elective surgery? Yes!].

F W Albert1, H Eichler, H Haubelt

  • 1Klinikum der Stadt Ludwigshafen, Institut für Hämostaseologie und Transfusionsmedizin, Bremserstrasse 79, 67063 Ludwigshafen.

Hamostaseologie
|January 20, 2009
PubMed
Summary
This summary is machine-generated.

Before invasive procedures, screen for bleeding disorders using clinical history and tests like platelet count and coagulation times. Specialized labs are needed for complex cases like platelet dysfunction or von Willebrand disease.

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Hemocompatibility Testing of Blood-Contacting Implants in a Flow Loop Model Mimicking Human Blood Flow
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Hemocompatibility Testing of Blood-Contacting Implants in a Flow Loop Model Mimicking Human Blood Flow

Published on: March 5, 2020

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Last Updated: Jun 26, 2026

Application of Hemostatic Devices in Laparoscopic Hepatectomy
04:23

Application of Hemostatic Devices in Laparoscopic Hepatectomy

Published on: April 19, 2022

Hemocompatibility Testing of Blood-Contacting Implants in a Flow Loop Model Mimicking Human Blood Flow
09:41

Hemocompatibility Testing of Blood-Contacting Implants in a Flow Loop Model Mimicking Human Blood Flow

Published on: March 5, 2020

Area of Science:

  • Hematology
  • Clinical Pathology

Context:

  • Pre-operative assessment is crucial to prevent surgical bleeding.
  • Assessing bleeding risk requires integrating patient history with laboratory screening.
  • Current bleeding history assessment lacks high sensitivity and specificity.

Purpose:

  • To outline essential pre-procedural screening for hemorrhagic disorders.
  • To highlight the limitations of current bleeding assessment methods.
  • To emphasize the role of laboratory diagnostics in identifying bleeding risks.

Summary:

  • Pre-operative evaluation for hemorrhagic disorders necessitates combining clinical history with screening tests such as platelet count, activated partial thromboplastin time (aPTT), prothrombin time (PT), and clottable fibrinogen.
  • Standardized questionnaires aid in exploring bleeding history but are neither highly specific nor sensitive.
  • Platelet dysfunction and von Willebrand disease lack reliable screening tests, requiring specialized coagulation laboratory analysis when indicated.

Impact:

  • Improves patient safety by reducing the risk of intraoperative and post-operative hemorrhage.
  • Guides clinicians in selecting appropriate diagnostic pathways for bleeding disorders.
  • Highlights the need for improved diagnostic tools for specific hemostatic defects.