Validation of inflationary non-invasive blood pressure monitoring in adult surgical patients

Onodera, Jun; Kotake, Yoshifumi; Fukuda, Mitsue; Yasumura, Rie; Oda, Fujiko; Sato, Nobukazu; Ochiai, Ryoichi; Usuda, Takashi; Kobayashi, Naoki; Takeda, Sunao

doi:10.1007/s00540-010-1067-2

Cited by 11 publications

(9 citation statements)

References 11 publications

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“…Meanwhile, the iNIBP is designed to detect oscillations slowly during inflation and reduce the cuff pressure at the time of detecting the systolic blood pressure. Thus, it requires lower cuff pressure and shorter time to detect blood pressure as compared to dNIBP [ 6 ].…”

Section: Discussionmentioning

confidence: 99%

Comparison of inflationary non-invasive blood pressure (iNIBP) monitoring technology and conventional deflationary non-invasive blood pressure (dNIBP) measurement in detecting hypotension during cesarean section

Yamashita

Irikoma

2018

JA Clin Rep

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BackgroundThe Nihon Kohden linear inflationary non-invasive blood pressure (iNIBP) monitoring technology is an oscillometric device that measures blood pressure by detecting oscillations during inflation. Systolic blood pressure can be recorded without overinflating the cuff higher than the true systolic pressure. Thus, total time taken for inflation and deflation is shorter than that by the conventional deflation devices. In this study, the ability of iNIBP to detect maternal hypotension during cesarean section faster than deflationary non-invasive blood pressure (dNIBP) monitoring devices under clinical settings was evaluated prospectively.MethodsA prospective study of singleton planned cesarean sections at a tertiary center was conducted from August 2015 to April 2016. The combined spinal-epidural anesthesia (CSEA) technique through a single puncture was performed for cesarean section at the center where the study was carried out. An iNIBP cuff was placed on the same arm as the intravenous line, and a dNIBP cuff was placed on the other arm. Due to left uterine displacement by approximately 10° tilt of OR table, hypotension in this study was defined as systolic pressure of 107 mmHg or less, when measured in the left arm, which was about 10 cm lower, and pressure of 92 mmHg or less in the right arm which was about 10 cm higher. This setup was done to evaluate which device detected hypotension faster under clinical settings. A two-tailed Z test was performed to statistically analyze the difference between iNIBP and dNIBP measurement results.ResultsOne hundred singleton planned cesarean deliveries under CSEA were included after 36 weeks of gestation. Out of the 100, 76 women (76%) experienced maternal hypotension. Of these, iNIBP detected hypotension faster than dNIBP in 47 cases (61.8%).ConclusionIt was found that iNIBP detected hypotension faster than conventional dNIBP without compromising the reliability of measurement. This may lead to early treatment of maternal hypotension and prevention of adverse events related to the mother and the fetus.

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Section: Discussionmentioning

confidence: 99%

Comparison of inflationary non-invasive blood pressure (iNIBP) monitoring technology and conventional deflationary non-invasive blood pressure (dNIBP) measurement in detecting hypotension during cesarean section

Yamashita

Irikoma

2018

JA Clin Rep

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“…We hypothesized that, compared with the conventional NIBP monitoring device, the iNIBP would measure the blood pressure faster, particularly when the blood pressure has suddenly increased or decreased. There have been two observational studies on the use of the iNIBP [3,4], but no studies on the accuracy of the iNIBP.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of a new blood pressure monitor (inflationary non‐invasive blood pressure, iNIBP™): a randomised controlled study

2019

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Summary The inflationary non‐invasive blood pressure monitor (iNIBP™) uses a new measurement method, whereby the cuff is slowly inflated whilst simultaneously sensing oscillations, to determine the diastolic blood pressure first and then the systolic pressure. It may measure blood pressure more quickly than the conventional non‐invasive blood pressure monitor. We studied 66 patients undergoing general anaesthesia, comparing the time taken to measure the blood pressure between the two monitors at times when there were marked changes (increases or decreases by 30 mmHg or greater) in the systolic blood pressure. The median (IQR) [range]) time was significantly longer for the non‐invasive blood pressure monitor (38.8 (31.5–44.7) [18.0–130.0] s) than for the iNIBP (14.6 (13.7–16.4) [11.5–35.5] s), p = 0.001, 95%CI for difference 22–25 s). We also studied 30 volunteers to evaluate the accuracy of the iNIBP, comparing it with the mercury sphygmomanometer. There was good agreement between the two monitors, with a mean difference of 0 (95% limit of agreement −12 to 11) mmHg for the systolic blood pressure. We also compared the degree of pain during cuff inflation between the automated non‐invasive blood pressure and iNIBP monitors. Pain was significantly more for the non‐invasive blood pressure monitor (22 of 30 volunteers had less pain with the iNIBP). We have shown that the iNIBP measured the blood pressure quicker than the conventional non‐invasive blood pressure monitor and the speed of measurement was not significantly affected by marked changes in the blood pressure.

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“…Evaluations of inflationary NIBP have been carried out previously for anesthetized patients in operating rooms 3 . However, inflationary NIBP has not been examined in a variety of patients with significant changes in the measurement conditions.…”

Section: Discussionmentioning

confidence: 99%

“…In patients who receive anesthesia during surgery, the inflationary NIBP has been shown to show a reasonable accuracy compared with conventional deflationary NIBP 3 . However, the use of NIBP monitoring using inflationary NIBP in emergency room patients with various unstable conditions has not been reported previously.…”

Section: Introductionmentioning

confidence: 99%

Validation of inflationary noninvasive blood pressure monitoring in the emergency room

Sasaki

Kikuchi

Usuda

et al. 2015

Blood Pressure Monitoring

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ObjectiveThe aim of this study was to compare the values of a noninvasive blood pressure (NIBP) measurement during cuff inflation (inflationary NIBP) and deflationary NIBP measurements and to verify whether inflationary NIBP is equivalent to conventional deflationary NIBP and is acceptable for clinical use in the emergency room (ER).Materials and methodsA total of 2981 NIBP data points were collected from 175 patients (age, 56.5±22.2 years; range, 7–92 years) who had been treated in the resuscitation area of the ER at Keio University Hospital. The data points were obtained using two alternate algorithms with a standard monitor (BSM-6000). One algorithm consisted of continuous inflationary and deflationary measurements in a single cycle (dual algorithm, 1502 data points); this algorithm was used to verify the success rate and the precision of the data. The second algorithm (1479 data points) consisted of only conventional deflationary measurements and was used to verify the duration of the measurement cycle.ResultsThe success rate of the inflationary NIBP (completed using only the inflationary method) was 69.0%. Failures in the inflationary measurements were caused by arrhythmia and/or body motions. The mean difference and SD of the systolic pressure and the diastolic pressure between inflationary NIBP and deflationary NIBP were −0.6±8.8 and 3.5±7.5 mmHg, respectively. The confidence intervals were −0.6 (95% confidence interval=−1.1 to −0.1) and 3.5 (95% confidence interval=3.0 to 4.0) mmHg. The coefficients of correlation were 0.96 and 0.93. Inflationary NIBP was capable of determining the NIBP more quickly compared with deflationary NIBP (average of 15.9 vs. 34.2 s; P<0.05).ConclusionInflationary NIBP measurements have a reasonable accuracy and a sufficient rapidity, compared with deflationary NIBP measurements, in ER patients.

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Validation of inflationary non-invasive blood pressure monitoring in adult surgical patients

Cited by 11 publications

References 11 publications

Comparison of inflationary non-invasive blood pressure (iNIBP) monitoring technology and conventional deflationary non-invasive blood pressure (dNIBP) measurement in detecting hypotension during cesarean section

Comparison of inflationary non-invasive blood pressure (iNIBP) monitoring technology and conventional deflationary non-invasive blood pressure (dNIBP) measurement in detecting hypotension during cesarean section

Efficacy of a new blood pressure monitor (inflationary non‐invasive blood pressure, iNIBP™): a randomised controlled study

Validation of inflationary noninvasive blood pressure monitoring in the emergency room

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