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Overview :
Mylotte and Tayara identified risk factors associated with
short term (30-day) mortality in patients with Staphylococcus aureus bacteremia.
These can help identify patients who may benefit from closer monitoring and more
aggressive management. The authors are from the University of Buffalo, State University of New York, and
Erie
County Medical Center.
Patient selection: adults with Staphylococcus aureus
bacteremia (excluding obstetrical patients)
Parameters:
(1) age of the patient in years
(2) source for the bacteremia
(3) diabetes mellitus
(4) acute physiology score (APS) from the APACHE III
score
|
Parameter |
Finding |
Points |
|
age of the patient in years |
< 65 years of age |
0 |
|
|
>= 65 years of age |
2 |
|
source |
respiratory (pneumonia, etc.) |
6 |
|
|
unknown |
4 |
|
|
other |
0 |
|
diabetes mellitus |
absent |
0 |
|
|
present |
2 |
|
APS |
<= 60 |
0 |
|
|
> 60 |
16 |
where:
• Sources
of bacteremia included: IV catheter, osteomyelitis, skin or soft tissue,
intra-abdominal, and urinary tract.
• The
points assigned are based on the odds ratios from Table 4, page 1173, rounded to
nearest integer.
• The APS
is discussed in Chapter 30. The range is 0 to 192.
NOTE: The
following score was not included in the article and has not been validated.
total score
=
=
SUM(points for all 4 risk factors)
Interpretation:
• minimum score: 0
• maximum score: 30
• The higher the score the greater the risk for 30-day
mortality.
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