Description

Emmertsen and Laurberg developed the Low Anterior Resection Score (LARS) to evaluate patients who have undergone a low anterior resection for rectal cancer. The authors are from Aarhus University Hospital in Denmark.


 

Patient: status post low anterior resection

 

Parameters:

(1) incontinence for flatus

(2) incontinence for liquid stools

(3) frequency of bowel movements

(4) clustering of stools (need to defecate within 1 hour of a previous bowel movement)

(5) urgency

Parameter

Finding

Points

incontinence of flatus

never

0

 

less than once a week

4

 

at least once a week

7

incontinence of liquid stool

never

0

 

less than once a week

3

 

at least once a week

3

frequency of bowel movements per day

>= 8 times

4

 

4 to 7 times

2

 

1 to 3 times

0

 

less than once a day

5

clustering of stools

never

0

 

less than once a week

9

 

at least once a week

11

urgency

never

0

 

less than once a week

11

 

at least once a week

16

 

where:

• In the implementation incontinence of liquid stool is represented by a yes/no question.

 

total LARS score =

= SUM(points for all 5 parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 42

• The higher the score the more severe the low anterior resection syndrome.

 

LARS

Interpretation

0 to 20

none

21 to 29

minor

30 to 42

major

 


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