A2B Score of Nakada et al for a Patient with Decompensated Heart Failure

Description

Nakada et al reported the A2B score to predict survival for a patient with acute decompensated heart failure. This can help to identify a patient who may benefit from more aggressive management. The authors are from Nara Medical University, Kyushu University and Kitasato University in Japan.

A2B is an acronym for age, anemia and BNP

Patient selection: acute decompensated heart failure

Parameters:

(1) age in years

(2) hemoglobin in g/dL

(3) serum BNP in pg/mL

Parameter	Finding	Points
age	< 65 years	0
	65 to 74 years	1
	>= 75 years	2
hemoglobin	< 10 g/dL	2
	10 to 11.9 g/dL	1
	>= 12 g/dL	0
serum BNP	< 200 pg/mL	0
	200 to 499 pg/mL	1
	>= 500 pg/mL	2

total score =

= SUM(points for all of the parameters)

Interpretation:

• minimum score: 0

• maximum score: 6

Total Score	Risk Group	2-Year Survival
0	extremely low	95.4%, 97.8%
1 or 2	low	90.2%, 84.5%
3 or 4	medium	75%, 66.1%
5 or 6	high	55.6%, 45.2%

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A2B Score of Nakada et al for a Patient with Decompensated Heart Failure

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