Benotti et al reported a risk score for patients undergoing Roux-en-Y gastric bypass (RYGB) surgery. This can help to identify a patient at increased risk for 30-day morality. The authors are from Geisinger Clinic and Surgical Review Corporation.
Patient selection: roux-en-Y gastric bypass surgery, age > 18 years, BMI > 35 kg per sq m
Outcome: 30-day mortality
Parameters:
(1) age in years
(2) body mass index (BMI)
(3) sex
(4) congestive heart failure (CHF)
(5) liver disease
(6) pulmonary hypertension
points for age =
= MAX(0,INT((age)-40)/10)
points for BMI =
= MAX(0,INT((BMI)-40)/10)
Parameter
Finding
Points
sex
female
0
male
1
CHF
no
0
yes
1
liver disease
no
0
yes
1
pulmonary hypertension
no
0
yes
2
total score =
= SUM(points for all 6 parameters)
Interpretation:
• minimum score: 0
• maximum score: 11
Score
Mortality
0
0.02%
1
0.08%
2
0.22%
3
0.34%
4
0.69%
>=5
1.4%
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