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APACHE-O Score of Johnson et al for Evaluating a Patient with Severe Acute Pancreatitis

Purpose: To evaluate a patient with acute pancreatitis using the APACHE-O score of Johnson et al.

Description

Johnson et al developed the APACHE-O score to evaluate patients with severe acute pancreatitis. The authors are from Southampton General Hospital and the University of Sheffield in England.


Patient selection: severe acute pancreatitis

 

Parameters measured during the first 24 hours after admission:

(1) APACHE II score

(2) obesity score derived from the body mass index (BMI)

 

body mass index =

= (body weight in kg) / ((body height in meters)^2)

 

Body Mass Index

Obesity Score

< 26

0

26 to 30

1

> 30

2

 

APACHE-O score =

= (APACHE II score) + (obesity score)

 

Interpretation:

• A score > 8 or > 9 can be used to identify a patient who will develop severe pancreatitis.

 

Performance:

• A cutoff > 8 was 89% sensitive and 79% specific.

• A cutoff > 9 was 82% sensitive and 86% specific.


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Specialty

Objective

ICD-10