Practical-Haemostasis.com



A Practical Guide to Haemostasis


Assessing the Risk of Bleeding in Patients with non-valvular Atrial Fibrillation [AF] Treated with a DOAC [NOAC]:
The Simplified ABH Score

Introduction:

The ABH score is a clinical prediction rule for assessing the bleeding risk in patients with Atrial Fibrillation [AF] treated with a DOAC [NOAC].  In the initial score, 10 variables were analysed.  A simplified version of the algorithm was subsequently developed using three variables: Age,  a history of bleeding and non-bleeding related hospitalisation in the preceding 12 months.

Drugs used in the study from which the algorithm was derived were:
  - Apixaban 2.5 mg or 5 mg
  - Rivaroxaban 15 mg or 20 mg
  - Dabigatran 110 mg or 150 mg.
Edoxaban was not approved for stroke prevention in AF at the time of the study.

ABH Score - Simplified



Select Criteria:

Age
<65 yrs 0 Points
65-75 yrs 1 Point
>75 yrs 2 Points
Positive Bleeding History
2 Points
Hospitalisation in the preceding 12 months [Non-bleeding related]
1 Point


Score
[Max Score 5]

Interpretation Score 1 year cumulative risk of bleeding [%]
Low Risk:
0-1 points
0
1
2.34%
4.48%
Intermediate Risk:
1-2 points
2
3
7.13%
11.46%
High Risk:
4-5 points
4
5
19.35%
20.29%


Click HERE to Reset