ADD-ONS / SCALES

HAT score

Hemorrhage After Thrombolysis Score for Predicting Post-tPA Hemorrhage

Created 02.08.2020, last update 10.10.2021

  • a practical, quick, and easy-to-perform scale that allows reasonable risk stratification of intracerebral hemorrhage after intravenous thrombolysis
Characteristics
points
history od diabetes
baseline blood glucose  > 200 md/dl  (11 mmol/l)
+ 1
pretreatment NIHSS
< 15
15-20
>20
0
+ 1
+ 2
Presence of hypodensity on initial head CT scan
no
< 1/3 of MCA territory
≥ 1/3 of MCA territory
0
+ 1
+ 2
HAT score risk of ICH
risk of fatal ICH
0 2% 0%
1 5% 3%
2 10% 7%
3 15% 6%
>3 44% 33%
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