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>
!
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|0
|0
|8%
|8%
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|-
|1
|1
|5%
|5%
|
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|-
|2
|2
|15%
|15%
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|3
|3
|40%
|40%
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|5%
|5%
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|-
|-
|≥4
|≥4
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|40%
|40%
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|-
|4
|4
|47%
|47%
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|-
|5
|5
|33%
|33%
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|
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|-
|-
|6
|6
|43%
|43%
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|
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|-
|-
|≥7
|≥7
|75%
|75%
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Revision as of 14:25, 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

References

  1. a b  Nana Nakada‐Motokawa, Taiga Miyazaki, Takashi Ueda, Yuka Yamagishi, Koichi Yamada, Hideki Kawamura, Hiroshi Kakeya, Hiroshi Mukae, Hiroshige Mikamo, Yoshio Takesue, Shigeru Kohno. Modified Pitt bacteremia score for predicting mortality in patients with candidaemia: A multicentre seven‐year retrospective study conducted in Japan. Mycoses. 2021;64(12):1498-1507. doi:10.1111/myc.13380.
  2. ^  M.N. Al-Hasan, B.D. Lahr, J.E. Eckel-Passow, L.M. Baddour. Predictive scoring model of mortality in Gram-negative bloodstream infection. Clinical Microbiology and Infection. 2013;19(10):948-954. doi:10.1111/1469-0691.12085.
  3. ^ 10.4414/smw.2017.14482 
  4. ^  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, Robert A Bonomo, Anthony Harris, Sonia Napravnik, David Van Duin. The Pitt Bacteremia Score Predicts Mortality in Nonbacteremic Infections. Clinical Infectious Diseases. 2019;70(9):1826-1833. doi:10.1093/cid/ciz528.