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Abstract Objective: To investigate the application of continuous noninvasive instantaneous blood pressure measurement device (WBP) and non invasive blood pressure (NIBP) during cesarean. Methods: 45 women with caesarean section under combined spinal epidural anesthesia were included in this self controlled trial, and all women were measured blood pressure by WBP and NIBP during the operation. The consistency and sensitivity of WBP and NIBP was compared and analyzed. All included women were able to tolerance the blood pressure measurement by WBP and NIBP. 308 pairs of valid matching data were collected for analysis. Results：There were 76 cases with hypotensive event recorded by WBP (24.7%), which was significant higher than that (37 cases, 12.0%) recorded by the NIBP (P<0.05). The difference of systolic or diastolic blood pressure value and the mean arterial pressure bias measured by WBP and NIBP had statistically significant difference (P<0.05). The values of systolic blood pressure, mean arterial pressure, and diastolic blood pressure measured by WBP had better consistency with those measured by NIBP. Pearson correlation analysis showed that the value of blood pressure measured by WBP was correlation with that measured by NIBP. Conclusion: Compared with NIBP, WBP can provide continuous, safe, noninvasive and accurate blood pressure monitoring, which is more suitable for the blood pressure monitoring of women during cesarean under lumbar combined with epidura anesthesia.
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