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Related Concept Videos

Blood Transfusion01:15

Blood Transfusion

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Blood transfusion is a critical medical procedure that saves lives and treats various medical conditions. It involves transferring blood from a donor to a recipient. This process requires a thorough understanding of the ABO blood group system and its associated antigens and antibodies.
Blood Transfusion Overview
A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...
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Blood Transfusion and Agglutination02:45

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Blood transfusion is a therapeutic measure to restore the blood volume after extensive blood loss due to an accident or a medical procedure. Blood transfusion involves drawing a certain amount of blood from a suitable donor and infusing it into the recipient.
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The history of blood transfusion dates back to the 17th century, when early attempts were made in animals. In 1818 James Blundell, a British doctor, performed the first successful human blood transfusion. Later in 1900, Karl...
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Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

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Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
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Cross-reactivity00:42

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Overview
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Related Experiment Video

Updated: Jan 16, 2026

Subretinal Transplantation of Human Embryonic Stem Cell-Derived Retinal Tissue in a Feline Large Animal Model
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A Prospective Multicenter Observational Study Assessing Incidence and Risk Factors for Acute Transfusion Reactions in

Georgina B F Hall1, Rachael Birkbeck2, Benjamin M Brainard3

  • 1Clinical Science and Services, The Royal Veterinary College, London, UK.

Journal of Veterinary Internal Medicine
|September 29, 2025
PubMed
Summary
This summary is machine-generated.

The incidence of feline blood transfusion reactions (TRs) was evaluated using TRACS definitions. Febrile nonhemolytic TRs were most common, linked to older red blood cell (RBC) units and infusion pump use.

Keywords:
AHTRFNHTRTACOTRALIfelinestorage lesion

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Area of Science:

  • Veterinary Medicine
  • Hematology
  • Critical Care

Background:

  • The incidence of blood product transfusion reactions (TRs) in cats is highly variable.
  • Standardized definitions are needed to accurately assess TRs in feline patients.

Purpose of the Study:

  • To evaluate the incidence and practices surrounding acute TRs in cats receiving feline blood products.
  • To apply the Transfusion Reaction Small Animal Consensus Statement (TRACS) definitions for standardized assessment.

Main Methods:

  • A prospective, multicenter observational study was conducted across 14 referral hospitals in the US, UK, and Australia.
  • Data were collected on 444 cats receiving 608 feline blood products between March 2022 and January 2024.
  • Acute TRs were documented using TRACS criteria.

Main Results:

  • The incidence of acute TRs was 7.8% for red blood cell (RBC)-containing products and 1.1% for plasma products.
  • Febrile nonhemolytic transfusion reactions (FNHTRs) were the most frequent TRs (5.7%) associated with RBC products.
  • Increased RBC unit age and use of an infusion pump (vs. syringe driver) were associated with higher odds of FNHTR.
  • Of transfusions stopped for suspected TR, 46.4% did not meet TRACS criteria.
  • Death within 24 hours occurred in 18.3% of cases but was not linked to TR development.

Conclusions:

  • This study reports the incidence of transfusion reactions in cats based on TRACS guidelines.
  • Febrile nonhemolytic TRs are the most common type of reaction in cats.
  • RBC unit age and administration method (infusion pump) are significant factors associated with FNHTRs in cats.