Wesselink et al studied the impact of intraoperative hypotension on postoperative adverse outcomes. This depends on knowing its severity and duration. The authors are from Utrecht University in the Netherlands.
Patient selection: surgical patient
Parameters:
(1) minimum mean arterial pressure (MAP) in mm Hg
(2) duration of minimum in minutes
Adverse outcomes:
(1) acute renal injury
(2) myocardial injury
(3) stroke
(4) delirium
Mean Arterial Pressure
Mild Adverse Outcome
Moderate Adverse Outcome
Severe Adverse Outcome
< 80 mm Hg
>= 10 minutes
< 75
>= 10 minutes
< 70
>= 1 minutes
< 65
>= 1 minutes
>= 5 minutes
>= 20 minutes
< 60
>= 1 minutes
>=5 minutes
>= 20 minutes
< 55
>= 1 minutes
>= 10 minutes
< 50
>= 1 minutes
>= 5 minutes
< 45
>= 1 minutes
>= 5 minutes
< 40
>= 1 minutes
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