Donati et al modified the Johns Hopkins classification of surgical procedures. The original classification had 5 levels while the modified version was reduced to 3.
Patient selection: preoperative assessment
Parameters:
(1) risk independent of anesthesia
(2) invasiveness of procedure
(3) potential blood loss
(4) planned ICU care
(5) exclusions
Risk
Invasiveness
Blood Loss
Planned ICU
Grade
minimal to mild
minimal to moderate
< 500 mL
no
1
moderate
moderate to significant
500 to 1,500 mL
no
2
major to critical
highly
> 1,500
yes
3
Exclusions for Grade 1: open exposure of internal organs; vascular repair; neurosurgery; placement of prosthetic device; resection of major body organ; planned postoperative monitoring
Exclusions for Grade 2: open thoracic surgery; intracranial; major vascular surgery (aortofemoral bypass); planned ICU care
To read more or access our algorithms and calculators, please log in or register.
