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Nomogram of Xiaoyong et al for Tube Feeding Intolerance Following Gastrectomy for Gastric Cancer

Description

Xiaoyong et al developed a nomogram for predicting feeding tube intolerance after gastrectomy for gastric cancer. This can help to identify a patient who may require more aggressive nutritional management. The authors are from the Fourth Military Medical University and Shanxi Provincial People's Hospital in China.


Patient selection: status post gastrectomy for gastric cancer with ASA from 1 to 3

 

Outcome: tube feeding intolerance

 

Parameters:

(1) VAS score for pain at 6 hours after surgery (which may indicate the need for opiate therapy) over a range from 0 to 9

(2) constipation history

(3) preoperative ASA score from 1 to 3

(4) WBC count per µL (from 4,000 to 34,000 per µL)

 

points for VAS score =

= 8.333 * (VAS score for pain)

 

points for WBC count =

= (3.57 * ((WBC) / 1000)) - 14.286

 

Parameter

Finding

Points

constipation history

no

0

 

yes

41.4

ASA

ASA 1

0

 

ASA 2

30

 

ASA 3

60

 

total score =

= SUM(points for all 4 parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 276.9

• The higher the score the greater the risk of feeding tube intolerance.

 

Score

Probability of Feeding Tube Intolerance

< 73.8

< 20%

73.8 to 220.4

X = (0.029617 * (score)) - 3.5636

probability = 1 / (1 + EXP((-1) * X))

> 220.4

> 95%

 


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