Sepsis Risk of Infection Score (RISSC) Medical Algorithm

Description

Alberti et al developed a score for identifying an infected patient in the intensive care unit (ICU) who is likely to progress to severe sepsis or septic shock. These patients may benefit from more aggressive management. The author are from multiple medical centers in Europe and are members of the European Sepsis Study Group.

Parameters:

(1) heart rate

(2) systolic blood pressure

(3) body temperature

(4) mechanical ventilation

(5) pneumonia

(6) peritonitis

(7) primary bacteremia

(8) serum total bilirubin

(9) serum sodium

(10) platelet count

(11) Gram-positive cocci

(12) aerobic Gram-negative bacilli

Parameter	Finding	Points
heart rate	<= 120 per minute	0
	> 120 per minute	3
systolic blood pressure	>= 110 mm Hg	0
	< 110 mm Hg	4
body temperature	<= 38.2°C	0
	> 38.2°C	5
mechanical ventilation	no	0
	yes	6.5
pneumonia	absent	0
	present	4
peritonitis	absent	0
	present	4
primary bacteremia	absent	0
	present	6
serum total bilirubin	<= 30 µmol/L	0
	> 30 µmol/L	3
serum sodium	<= 145 mmol/L	0
	> 145 mmol/L	4
platelet count	>= 150,000 per µL	0
	< 150,000 per µL	4
Gram-positive cocci	absent	0
	present	2.5
aerobic Gram-negative bacilli	absent	0
	present	3

total score =

= SUM(points for all 12 parameters)

Interpretation:

• minimum score: 0

• maximum score: 49 (theoretical)

• The higher the score the greater the risk of severe sepsis or septic shock.

• The higher the score the greater the time spent in the ICU.

Total Score	Risk Group	Percent Who Worsen
0 to 8	low	9%
8.1 to 16	moderate	17%
16.1 to 24	high	31%
> 24	very high	55%

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Description

Specialty

Objective

ICD-10

Risk of Infection to Severe Sepsis and Shock Score (RISSC) of Alberti et al

Purpose: To identify an infected patient in the ICU who is likely to progress to severe sepsis or septic shock using the RISSC score of Alberti et al.

Description

Specialty

Objective

ICD-10