Skip Navigation LinksHome > Research > AABB Hemovigilance > Patient Hemovigilance

Patient Hemovigilance

AABB continues to work with facilities around the world to participate in national hemovigilance efforts. Through its expert committees, AABB collaborates with government agencies and international organizations to establish and promote standard definitions related to transfusion reactions. Additionally, AABB committees develop education and supports research to further the goals of hemovigilance.

The AABB Center for Patient Safety, a component Patient Safety Organization (PSO) of AABB, was discontinued April 30, 2019 (see letter from AABB CEO, Debra BenAvram to PSO participants). AABB encourages all facilities to continue to report to the Centers for Disease Control and Prevention (CDC) National Healthcare Safety Network (NHSN) hemovigilance module. For assistance in participating, please contact or

Current projects related to patient hemovigilance include:

Supplemental Data Forms

AABB is providing hospitals with supplemental data forms, database templates and data dictionaries to assist in the collection of critical supplementary transfusion adverse event and utilization information that is not regularly collected by hemovigilance systems. The data gathered in these forms are not exhaustive, and health care staff are not required to fill in every field. AABB is not currently conducting any research projects collecting this information from hospitals to facilitate uniform comparison and benchmarking. However, AABB encourages hospitals to use the forms to establish internal data analysis and benchmarking systems.

AABB Respiratory Reactions Supplementary Form
AABB Respiratory Reaction Supplementary Database Template and Data Dictionary
AABB Transfusion Transmitted Bacterial Infection Supplementary Form
AABB Transfusion Transmitted Bacterial Infection Database Template and Data Dictionary
AABB Product Wastage Supplementary Form
AABB Product Wastage Database Template and Data Dictionary

Revised TACO Definition

Transfusion-associated circulatory overload (TACO) Definition 2018The revised transfusion associated circulatory overload (TACO) definition (2018) developed and validated by the International Society of Blood Transfusion (ISBT) working party on Haemovigilance in collaboration with the International Haemovigilance Network (IHN) and AABB, is now available online and results of the formal validation have been published (The Lancet Haematology, 2019). The revised definition is applicable to cases that occur up to 12 hours after transfusion. Combinations of signs and symptoms which can add up to meet the surveillance diagnostic criteria will help qualify cases where there may be no chest x-ray and/or record of elevated BNP concentrations as TACO. Notes on signs and symptoms and didactic table listing of key features has been added to assist in making diagnosis. The revision group emphasizes that the chief priority is to adopt standard reporting criteria, which will enable professionals to raise awareness of TACO and lead to improved reporting, research and reduction of transfusion complications.

Transfusion-associated circulatory overload (TACO) Definition (2018)

Common Transfusion Reaction Reporting Form

Common Transfusion Reaction Reporting Form The AABB Common Transfusion Reaction Reporting Form is intended for use by hospitals and blood centers for communicating information about transfusion reactions to the blood supplier, particularly when there are multiple suppliers to the hospital transfusion service. The form is intended to streamline the process for hospitals and provide complete information for blood suppliers when investigating transfusion reactions. The form and FAQ were developed by AABB hemovigilance committees.

Common Transfusion Reaction Reporting Form
Common Transfusion Reaction Reporting Form FAQ
Provide your Feedback