Ramanan et al reported a risk calculator for mortality after bariatric surgery. The authors are from Creighton University and VA Nebraska and Western Iowa Health Care System.
NOTE: A risk calculator for morbidity is reported in 12.10.15.
Outcome: 30-day mortality following bariatric surgery
Parameters:
(1) age in years
(2) body mass index (BMI)
(3) dyspnea
(4) chronic corticosteroid use
(5) history of peripheral vascular disease (PVD) requiring revascularization or amputation
(6) history of previous percutaneous coronary intervention (PCI)
(7) type of bariatric surgery
|
Parameter |
Finding |
Points |
|
age in years |
|
0.04 * (age) |
|
BMI |
< 45 kg per square meter |
-1.99 |
|
|
45 to 60 kg per square meter |
-0.64 |
|
|
> 60 kg per square meter |
0 |
|
dyspnea |
none |
-1.98 |
|
|
after moderate exertion |
-1.14 |
|
|
at rest |
0 |
|
chronic corticosteroids |
no |
-1.98 |
|
|
yes |
0 |
|
history PVD |
no |
-2.50 |
|
|
yes |
0 |
|
previous PCI |
no |
-1.44 |
|
|
yes |
0 |
|
type of surgery |
biliopancreatic diversion with duodenal switch |
0 |
|
|
LRYGB (laparoscopic Roux en-Y gastric bypass( |
-1.08 |
|
|
LAGB (laparoscopic adjustable gastric banding) |
-2.49 |
|
|
ORYGB (open Roux en-Y gastric bypass) |
-0.53 |
|
|
VBG (vertical banded gastroplasty) |
0.35 |
|
|
other gastoplasty |
-1.35 |
X =
= SUM(points for all 7 parameters) + 0.77
probability of 30-day mortality =
= 1 / (1 + EXP((-1) * X))
Purpose: To estimate the risk of mortality following bariatric surgery using the mortality risk calculator of Ramanan et al.
Specialty: Nutrition
Objective: risk factors, severity, prognosis, stage
ICD-10: E66,
