Pitt bacteremia score: Difference between revisions

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(Created page with "== Background == * Originally developed to predict mortality with Pseudomonas aeruginosa bacteremia * Now used more broadly for mortality from infections more generally == Components == * Measured at onset of bacteremia {| class="wikitable" !Criterion !Points |- |Fever (°C) ≤35 or ≥40 35.1-36.0 or 39.0-39.9 36.1-38.9 |2 1 0 |- |Hypotension: drop by >30 SBP or >20 DBP, or vasopressors, or SBP <90 |2 |- |Mechanical ventilation |2 |- |Cardiac arrest |4 |- |...")
 
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|Fever (°C)
 
|Fever (°C)
 
≤35 or ≥40
 
≤35 or ≥40
  +
 
35.1-36.0 or 39.0-39.9
 
35.1-36.0 or 39.0-39.9
  +
 
36.1-38.9
 
36.1-38.9
 
|2
 
|2
 
1
 
1
  +
 
0
 
0
 
|-
 
|-
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|Mental status
 
|Mental status
 
Alert
 
Alert
  +
 
Disoriented
 
Disoriented
  +
Stuporous
 
Comatose
+
Stuporous Comatose
 
|0
 
|0
 
1
 
1
  +
 
2
 
2
  +
 
4
 
4
 
|}
 
|}
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![[Staphylococcus aureus bacteremia|SAB]] (30-dy 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>
 
![[Staphylococcus aureus bacteremia|SAB]] (30-dy 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)<ref>Heather Henderson, Courtney L Luterbach, Eric Cober, Sandra S Richter, Robert A Salata, Robert C Kalayjian, Richard R Watkins, Yohei Doi, Keith S Kaye, Scott Evans, Vance G Fowler, Jr, Robert A Bonomo, Anthony Harris, Sonia Napravnik, David Van Duin, The Pitt Bacteremia Score Predicts Mortality in Nonbacteremic Infections, ''Clinical Infectious Diseases'', Volume 70, Issue 9, 1 May 2020, Pages 1826–1833, https://doi.org/10.1093/cid/ciz528</ref>
 
!Nonbacteremic infections (14-day mortality)<ref>Heather Henderson, Courtney L Luterbach, Eric Cober, Sandra S Richter, Robert A Salata, Robert C Kalayjian, Richard R Watkins, Yohei Doi, Keith S Kaye, Scott Evans, Vance G Fowler, Jr, Robert A Bonomo, Anthony Harris, Sonia Napravnik, David Van Duin, The Pitt Bacteremia Score Predicts Mortality in Nonbacteremic Infections, ''Clinical Infectious Diseases'', Volume 70, Issue 9, 1 May 2020, Pages 1826–1833, https://doi.org/10.1093/cid/ciz528</ref>
!
 
 
|-
 
|-
 
|0
 
|0
 
|8%
 
|8%
|
 
 
|
 
|
 
|-
 
|-
 
|1
 
|1
 
|5%
 
|5%
|
 
 
|
 
|
 
|-
 
|-
 
|2
 
|2
 
|15%
 
|15%
|
 
 
|
 
|
 
|-
 
|-
 
|3
 
|3
 
|40%
 
|40%
|
 
 
|
 
|
 
|-
 
|-
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|
 
|
 
|5%
 
|5%
|
 
 
|-
 
|-
 
|≥4
 
|≥4
 
|
 
|
 
|40%
 
|40%
|
 
 
|-
 
|-
 
|4
 
|4
 
|47%
 
|47%
|
 
 
|
 
|
 
|-
 
|-
 
|5
 
|5
 
|33%
 
|33%
|
 
 
|
 
|
 
|-
 
|-
 
|6
 
|6
 
|43%
 
|43%
|
 
 
|
 
|
 
|-
 
|-
 
|≥7
 
|≥7
 
|75%
 
|75%
|
 
 
|
 
|
 
|}
 
|}

Revision as of 10:25, 28 July 2023

Background

Components

  • Measured at onset of bacteremia
Criterion Points
Fever (°C)

≤35 or ≥40

35.1-36.0 or 39.0-39.9

36.1-38.9

2

1

0

Hypotension: drop by >30 SBP or >20 DBP, or vasopressors, or SBP <90 2
Mechanical ventilation 2
Cardiac arrest 4
Mental status

Alert

Disoriented

Stuporous Comatose

0

1

2

4

Interpretation

  • ≥4 usually used as a cutoff for increased risk of death
Mortality predicted by PBS for various infections.
Score SAB (30-dy mortality)[1] Nonbacteremic infections (14-day mortality)[2]
0 8%
1 5%
2 15%
3 40%
<4 5%
≥4 40%
4 47%
5 33%
6 43%
≥7 75%
  1. 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
  2. Heather Henderson, Courtney L Luterbach, Eric Cober, Sandra S Richter, Robert A Salata, Robert C Kalayjian, Richard R Watkins, Yohei Doi, Keith S Kaye, Scott Evans, Vance G Fowler, Jr, Robert A Bonomo, Anthony Harris, Sonia Napravnik, David Van Duin, The Pitt Bacteremia Score Predicts Mortality in Nonbacteremic Infections, Clinical Infectious Diseases, Volume 70, Issue 9, 1 May 2020, Pages 1826–1833, https://doi.org/10.1093/cid/ciz528