LBS Score of Ko et al for Predicting Hypotension in a Patient with Non-Variceal Upper GI Bleeding

Description

Ko et al reported the LBS (lactate, blood, systolic) score to predict hypotension in a patient with non-variceal upper gastrointestinal bleeding. This can help to identify a patient who may require more aggressive management. The authors are from Hanyang University, University of Ulsan and University of San Diego.

Patient selection: non-variceal upper gastrointestinal bleeding

Parameters:

(1) serum lactate in mmol/L

(2) blood in nasogastric aspirate

(3) systolic blood pressure in mm Hg

Parameter	Finding	Points
serum lactate	< 2 mmol/L	0
	2 to 3.99 mmol/L	1
	>= 4 mmol/L	2
blood in NG aspirate	no	0
	yes	2
systolic blood pressure	>= 130 mm Hg	0
	120 to 129 mm Hg	2
	110 to 119 mm Hg	3
	100 to 109 mm Hg	4
	< 100 mm Hg	5

total score =

= SUM(points for all of the parameters)

Interpretation:

• minimum score: 0

• maximum score: 9

• A score <= 2 has a negative predictive value of 99.5%

• A score >= 7 has a specificity of 97% but a sensitivity of 13%.

Score	Hypotension
0
1	12%
2	13%
3	15%
4	18%
5	22%
6	28%
7	34%
8	38%
9	60%

Performance:

• The area under the ROC curve is 0.74.

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LBS Score of Ko et al for Predicting Hypotension in a Patient with Non-Variceal Upper GI Bleeding

Description

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