Key result
Noninvasive beat-to-beat pulse transit time correlated well with invasive systolic blood pressure (r = 0.81 ± 0.11) and a 15% increase in PTT could detect a ≥30% decrease in systolic BP (AUC 0.85).
Why the study?
Does noninvasive beat-to-beat pulse transit time accurately correlate with invasively measured continuous arterial blood pressure during anesthesia induction in hypertensive patients?
Population
23 hypertensive patients scheduled for kidney transplant
Comparison
Noninvasive beat-to-beat pulse transit time… vs Invasively measured continuous radial arterial…
Design
Cohort
Follow-up
During anesthesia induction
Authors
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May support continuous noninvasive SBP monitoring during hypertensive anesthesia induction; leaves open prospective validation in larger cohorts.
Observational (n=23)
Does noninvasive beat-to-beat pulse transit time accurately correlate with invasively measured continuous arterial blood pressure during anesthesia induction in hypertensive patients?
Effect estimate: r = 0.81 ± 0.11
p-value: p=<0.001
Noninvasive beat-to-beat pulse transit time correlates well with invasive systolic blood pressure and can reliably detect significant hypotensive episodes during anesthesia induction in high-risk hypertensive patients.
Kim et al. (2012) conducted an observational in Hypertension (n=23). Noninvasive beat-to-beat pulse transit time (PTT) vs. Invasively measured continuous arterial BP was evaluated on Correlation between the inverse of PTT and systolic BP (r = 0.81 ± 0.11, p=<0.001). Noninvasive beat-to-beat pulse transit time correlated well with invasive systolic blood pressure (r = 0.81 ± 0.11) and a 15% increase in PTT could detect a ≥30% decrease in systolic BP (AUC 0.85).
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