Vather et al developed a score (I-score) for predicting the risk of prolonged ileus following colorectal surgery. This can help to identify a patient who may benefit from more aggressive management. The authors are from the University of Auckland and Auckland District Health Board.
Patient selection: status post colorectal surgery
Outcome: prolonged postoperative ileus
Parameters:
(1) gender
(2) preoperative serum albumin in g/L
(3) operative difficulty on scale from 1 to 10 (very easy to very difficult)
(4) technique
(5) wound size in cm
(6) red blood cell transfusion
|
Parameter |
Finding |
Points |
|
gender |
female |
0 |
|
|
male |
1 |
|
preoperative serum albumin |
>= 34 g/L |
0 |
|
|
< 34 g/L |
1 |
|
operative difficulty |
1 to 7 |
0 |
|
|
8 to 10 |
1 |
|
technique |
laparoscopic |
0 |
|
|
open or converted |
1 |
|
wound size |
<= 10 cm |
0 |
|
|
> 10 cm |
1 |
|
red blood cell transfusion |
no |
0 |
|
|
yes |
1 |
I-score =
= SUM(points for all 6 parameters)
Interpretation:
• minimum score: 0
• maximum score: 6
• The higher the score the greater the risk of ileus.
|
Total Score |
Risk |
Percent |
|
0 or 1 |
low |
7% |
|
2 |
moderate |
26% |
|
3 to 6 |
high |
49% |
Performance:
• The area under the ROC curve is 0.74.
Purpose: To identify a patient at risk for prolonged ileus following colorectal surgery using the I-score of Vather et al.
Specialty: Gastroenterology, Surgery, orthopedic, Surgery, general
Objective: complications, surgery
ICD-10: K91.3,
