• Xianghu Meng, Guanghui Zang, Rui Li, Longchang Fan, Jihong Liu, and Zengjun Wang.
• Department of Urology, the First Affiliated Hospital of Nanjing Medical University, Nanjing Province.
• Blood Press Monit. 2018 Feb 1; 23 (1): 19-23.

ObjectiveThe aim of the present study was to comprehensively compare noninvasive and invasive blood pressure (BP) measured by the Philips Intellivue MP50 monitor in surgeries that may induce gall cardiac reflex under general anesthesia.Participants And MethodsSeventy-eight patients undergoing cholecyst or bile duct operations under general anesthesia were enrolled in our study. Both invasive (intraradial, femoral, or dorsalis pedis artery) and noninvasive (oscillometric) BP were monitored by the Philips Intellivue MP50 monitor simultaneously. Data were analyzed using Bland-Altman plots.ResultsIn a supine position during operations, between intraradial and oscillometric measurements, the bias and precision (mmHg) were 9.34±12.98 and 12.47±10.00 for systolic blood pressure (SBP) and 3.26±8.22 and 6.53±5.97 for diastolic blood pressure (DBP), between intrafemoral and oscillometric measurements, the bias and precision (mmHg) were 14.40±14.38 and 16.93±11.28 for SBP and 4.35±9.72 and 7.52±7.54 for DBP, between intradorsalis pedis and oscillometric measurements, the bias and precision (mmHg) were 15.69±14.37 and 16.91±12.91 for SBP and 0.99±7.69 and 5.67±5.27 for DBP.ConclusionThe oscillometric BP showed poor agreement with intra-arterial BP in cholecyst or bile duct surgeries that may induce gall cardiac reflex under general anesthesia. Therefore, according to the present data, application of oscillometric BP measured by the Philips Intellivue MP50 monitor in these surgery patients under general anesthesia cannot be recommended generally.

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