Recommendations for harmonizing definition, recording, and reporting of the annual bleeding rate in hemophilia: communication from the ISTH SSC Subcommittee on Factor VIII, Factor IX and Rare Coagulation Disorders.

What was studied

This is a message from an expert subcommittee of the ISTH. It deals with how bleeding in hemophilia is defined, recorded, and reported. An earlier group gave definitions for joint and muscle bleeds in 2014. These were not used the same way in trials or in care. A new group reviewed the papers and spoke with stakeholders.

What they found

The abstract gives no study results. It gives a revised definition of joint bleeding. It also sets out ways to make the reporting of bleeds more uniform. These cover the period used to judge efficacy and how bleeding rates are worked out. They also cover terms and ways to share combined data.

What it means for patients

The group wants these definitions used in future trials and in care. This would help compare new treatments and support shared decision-making. The guidance covers how to spot bleeds, mainly in joints. It also covers how to record and report them.

Why it is not certain yet

The abstract does not say how strong the evidence is. Papers on bleeds vary widely in how they report them. The text is an expert communication, not a trial. A guideline reflects the evidence and views available when it was written.

Source

Recommendations for harmonizing definition, recording, and reporting of the annual bleeding rate in hemophilia: communication from the ISTH SSC Subcommittee on Factor VIII, Factor IX and Rare Coagulation Disorders.

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