Yarnold et al developed an "optimal" Pre-Arrest Morbidity (PAM) index using 8 clinical findings, each scored 1 point if present. This can be used to predict survival in patients having a cardiopulmonary arrest in the hospital.
|
Clinical Finding |
Status |
Points |
|
hypotension |
absent |
0 |
|
|
present |
1 |
|
azotemia |
absent |
0 |
|
|
present |
1 |
|
pneumonia |
absent |
0 |
|
|
present |
1 |
|
sepsis |
absent |
0 |
|
|
present |
1 |
|
need for mechanical ventilation |
absent |
0 |
|
|
present |
1 |
|
recent cerebrovascular event |
absent |
0 |
|
|
present |
1 |
|
coma |
absent |
0 |
|
|
present |
1 |
|
cirrhosis |
absent |
0 |
|
|
present |
1 |
where:
• Hypotension is defined as a systolic blood pressure <= 90 mm Hg (George et al, 1989, page 29)
• Azotemia is defined as a BUN >= 50 mg/dL or serum creatinine >= 2.5 mg/dL (George et al, 1989, page 29)
modified PAM index =
= SUM(points for clinical findings present)
Interpretation:
• minimum score: 0
• maximum score: 8
|
Modified PAM Index |
Survival |
|
0, 1 |
good |
|
2, 3 |
poor |
|
>= 4 |
none |
after Figure 2, page 2411 Yarnold 1998
Specialty: Cardiology
ICD-10: ,
