Pitt bacteremia score: Difference between revisions

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Latest revision as of 17:22, 27 September 2024

Originally developed to predict mortality with Pseudomonas aeruginosa bacteremia
Now used more broadly for mortality from infections more generally
A modified Pitt bacteremia score (mPBS) also exists1

Criterion	Points (original)	Points (modified)
Fever (°C)
≤35 or ≥40	2
35.1-36.0 or 39.0-39.9	1
36.1-38.9	0
Hypotension: drop by >30 SBP or >20 DBP, or vasopressors, or SBP <90	2	2
Mechanical ventilation	2	2
Cardiac arrest	4	4
Mental status
Alert	0	0
Disoriented	1	1
Stuporous/comatose	2	2
Comatose	4	4
Dialysis		2

Mortality predicted by PBS for various infections.
Score	Gram-negative bacteremia (28-day mortality)2	SAB (30-day mortality)3	Nonbacteremic infections (14-day mortality)4	Candidemia (mPBS) (30-day mortality)1
0	≤1%	8%	5%	14%
1	1%	5%
2	1.5%	15%
3	2%	40%
4	3%	47%	40%	37%
5	5%	33%
6	7%	43%
7	10%	75%
8	14%			69%
9	20%
≥10	27-81%

@@ Line 71: / Line 71: @@
 !Score
 !Gram-negative bacteremia (28-day mortality)[[CiteRef::al-hasan2013pr]]
+![[Staphylococcus aureus bacteremia|SAB]] (30-day mortality)[[CiteRef::10.4414/smw.2017.14482]]
-![[Staphylococcus aureus bacteremia|SAB]] (30-day mortality)<ref>Roth JA, Tschudin-Sutter S, Dangel M, Frei R, Battegay M, Widmer AF. Value of the Pitt Bacteraemia Score to predict short-term mortality in Staphylococcus aureus bloodstream infection: a validation study. Swiss Med Wkly [Internet]. 2017 Aug. 10 [cited 2023 Feb. 8];147(3132):w14482. Available from: https://smw.ch/index.php/smw/article/view/2342</ref>
 !Nonbacteremic infections (14-day mortality)[[CiteRef::henderson2019th]]
 !Candidemia (mPBS) (30-day mortality)[[CiteRef::nakada‐motokawa2021mo]]