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Table 3 Risk Score for 30-Day Mortality Following Coronary Artery Bypass Graft

From: Predicting the risk of death following coronary artery bypass graft made simple: a retrospective study using the American College of Surgeons National Surgical Quality Improvement Program database

Risk Factors

Score

Age

 

 40-49 years

1

 50-59 years

2

 60-69 years

3

 70-79 years

4

 >80 years

5

Dyspnea

 

 None

0

 Moderate Exertion

1

 At Rest

3

History of MI

 

 No

0

 Yes

2

Previous PCI

 

 No

0

 Yes

1

Preoperative BUN

 

 < 30

0

 ≥ 30

2

Preoperative Sodium

 

 > 145 mEq/L

0

 140 - 145 mEq/L

1

 135 - 139 mEq/L

3

 130 - 134 mEq/L

4

 125 - 129 mEq/L

6

 120 - 124 mEq/L

7

 115 - 119 mEq/L

9

 < 115 mEq/L

10

  1. Lowest score = 1.
  2. Highest score = 23.
  3. MI = myocardial infarct.
  4. PCI = percutaneous coronary intervention.
  5. BUN = blood urea nitrogen.