Description

Helbich et al developed a score for diagnosing acalculous cholecystitis in a critically ill patient based on findings seen by ultrasonography. This can help to identify a patient who may benefit from an intervention for acalculous cholecystitis. The authors are from the University of Vienna.


Sonographic views of the gallbladder:

(1) longitudinal extent (maximum longitudinal diameter)

(2) transverse width (maximum transverse diameter perpendicular to longitudinal axis)

(3) wall thickness in the anterior free wall

(4) wall thickness in the gallbladder bed

(5) gallbladder contents

(6) pericholecystic fluid

 

Parameters:

(1) distension of the gallbladder (GB)

(2) thickness of the gallbladder wall

(3) sludge

(4) striated thickening of the gallbladder wall

(5) pericholecystic fluid collection

 

Parameter

Finding

Points

distension of the gallbladder

absent

0

 

present

2

thickness of the GB wall

< 0.4 cm

0

 

>= 0.4 cm

2

sludge

absent

0

 

present

2

striated thickening of GB wall

absent

0

 

present

1

pericholecystic fluid collection

absent

0

 

present

1

 

where:

• Sludge was identified as echogenic bile.

• On page 130 distension of the gallbladder was defined as a longitudinal extent of >= 8 cm and transverse diameter <= 5 cm. I would have thought that >= 5 cm seems more like distention; in Table 2 the maximum transverse diameter is given as 7.9 cm.

 

total score =

= SUM(points for all 5 parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 8

• A score >= 6 is suspicious for acalculous cholecystitis.


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