Neuroanesthesia & neurocritical care
Zero-heat-flux thermometry over the carotid artery in assessment of core temperature in craniotomy patients
Authors' conclusion
ZHF-neck measures core temperature as reliably as ZHF-forehead in non-cardiac surgery.
Study context
- Population
- Craniotomy patients under general anesthesia (non-cardiac surgery)
- Participants
- 99 participants
- Comparison
- ZHF-neck vs ZHF-forehead, each vs esophageal temperature
- Outcome
- Agreement with esophageal temperature (Bland-Altman, difference index, percentage index within ± 0.5 °C)
- Follow-up
- Entire anesthesia; before and after esophageal temperature nadir
Methodological detailsBland-Altman analysis
- Bland-Altman analysis
Main finding
As reported in the abstract
Bland-Altman agreement with esophageal temperature, entire anesthesia · entire anesthesia
Further findings
| Outcome | Values | P value |
|---|---|---|
| Bland-Altman agreement after core temperature nadir | ZHF-forehead mean 0.1 (limits of agreement −0.6 to +0.8) °C | |
| Difference index (mean absolute difference), entire anesthesiaZHF-neck vs ZHF-forehead · after Bonferroni correction | ZHF-neck median 0.2 (IQR 0.1–0.3) °C · ZHF-forehead median 0.2 (IQR 0.2–0.4) °C | P > 0.017 |
| Difference index, after core temperature nadirZHF-neck vs ZHF-forehead · after Bonferroni correction | ZHF-neck median 0.2 (IQR 0.1–0.3) °C · ZHF-forehead median 0.2 (IQR 0.1–0.3) °C | P > 0.017 |
| Percentage index (differences within ± 0.5 °C), after esophageal nadir | ZHF-neck median 100 (IQR 92–100) % · ZHF-forehead median 100 (IQR 92–100) % |
Difference index (mean absolute difference), entire anesthesia
- Performed equally
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
Zero-heat-flux thermometry over the carotid artery in assessment of core temperature in craniotomy patients. J Clin Monit Comput. Published 6 March 2023. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →