Hemodynamics, fluids & transfusion
Carotid corrected flow time and Doppler shock index for prediction of post-induction hypotension in patients undergoing elective abdominal surgery: a prospective observational study
Authors' conclusion
Carotid flow time corrected by Wodey's formula was a reliable indicator of PIH in patients undergoing elective abdominal surgery, superior to FT, DSIFTc, and FTc(B).
Study context
- Population
- Adults scheduled for elective abdominal surgeryanalysed
- Participants
- 94 adults
- Exposure
- Carotid ultrasound parameters, FTc, 1/DSIFTc) for prediction of post-induction hypotension (PIH)
- Outcome
- Prediction of post-induction hypotension (PIH)
Methodological detailsdiagnostic accuracy (ROC curve analysis)
- Diagnostic accuracy (ROC curve analysis)
Main finding
As reported in the abstract
Prediction of PIH (ROC)
| Group | AUC | Cut-off | Sensitivity | Specificity |
|---|---|---|---|---|
| Flow time (FT) | 0.790 (95% CI 0.697-0.883) (P < 0.05) | 313.33 ms | 72.5% | 79.6% |
| FTc(W) | 0.788 (95% CI 0.695-0.881) (P < 0.001) | 334.15 ms | 82.5% | 70.4% |
| 1/DSIFTc | 0.729 (95% CI 0.626-0.832) (P < 0.001) | 4.58 | 80.0% | 61.1% |
| FTc(B) | 0.689 (95% CI 0.582-0.796) (P < 0.05) |
AUC
Flow time (FT)0.790 (95% CI 0.697-0.883) (P < 0.05)
FTc(W)0.788 (95% CI 0.695-0.881) (P < 0.001)
1/DSIFTc0.729 (95% CI 0.626-0.832) (P < 0.001)
FTc(B)0.689 (95% CI 0.582-0.796) (P < 0.05)
Cut-off
Flow time (FT)313.33 ms
FTc(W)334.15 ms
1/DSIFTc4.58
FTc(B)— not stated in the abstract
Sensitivity
Flow time (FT)72.5%
FTc(W)82.5%
1/DSIFTc80.0%
FTc(B)— not stated in the abstract
Specificity
Flow time (FT)79.6%
FTc(W)70.4%
1/DSIFTc61.1%
FTc(B)— not stated in the abstract
Observational data: associations, not effects.
Further findings
Incidence of PIH
- Developed PIH
- 40 (42.6%)
Original publication
Carotid corrected flow time and Doppler shock index for prediction of post-induction hypotension in patients undergoing elective abdominal surgery: a prospective observational study. Perioper Med (Lond). Published 29 March 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →