Perioperative medicine & outcomes
Assessment of risk factors for the development of postoperative hypotension in patients undergoing colorectal surgery: a historical cohort study
Authors' conclusion
Epidural analgesia was associated with postoperative hypotension.
Study context
- Population
- Adults undergoing colorectal surgery for any indication, Jewish General Hospital, Montreal, Canada, January 2013–December 2017
- Participants
- 982 adults
- Exposure
- Preoperative modifiable and nonmodifiable risk factors for postoperative hypotension
- Outcome
- Postoperative hypotension (SBP < 90 mm Hg or need for vasopressor infusion in PACU or on POD 0-3 on the surgical ward)
- Follow-up
- Postoperative days 0-3
Methodological detailssingle-centre, university-affiliated tertiary care centre, multivariable logistic regression, bootstrap model validation
- Single-centre
- University-affiliated tertiary care centre
- Multivariable logistic regression
- Bootstrap model validation
Main finding
As reported in the abstract
Incidence of postoperative hypotension and associated risk factors
Adjusted odds ratio (95% CI)P value
Epidural analgesiamodifiable risk factor
2.32(1.52–3.57)
P < 0.001Preoperative beta-blocker usemodifiable risk factor
1.71(1.04–2.83)
P = 0.04Laparoscopic surgeryprotective factor
0.48(0.30–0.78)
P = 0.003Higher preoperative SBPprotective factor
0.97(0.96–0.98)
P < 0.001- Postoperative hypotension occurred
- 272 (28%)
Observational data: associations, not effects.
Original publication
Assessment of risk factors for the development of postoperative hypotension in patients undergoing colorectal surgery: a historical cohort study. Can J Anaesth. Published 15 June 2026. doi:10.
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