Comparison of Blood Pressure Measurement by Doppler and by Pulse Oximetry Techniques

Wallace, Charles T.; Baker, J. D.; Alpert, Calvert C.; Tankersley, Susan J.; Conroy, Joanne M.; Kerns, Randall E.

doi:10.1213/00000539-198710000-00019

Cited by 32 publications

(19 citation statements)

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“…[10][11][12][13][14][15][16][17] However, most of these studies assessed the degree of correlation between the different methods [10][11][12]14,15 and, as Bland and Altman have pointed out, the more relevant comparison should involve the establishment of the limits of agreement. 18 Most also used a manual BP cuff, which allowed control of the rate of inflation and deflation of the cuff, resulting in moderately accurate results with good correlation.…”

Section: Discussionmentioning

confidence: 99%

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Observation of the pulse oximeter trace to estimate systolic blood pressure during spinal anaesthesia for Caesarean section: the effect of body mass index

Samuel

Dyk

Lombard

et al. 2017

Southern African Journal of Anaesthesia and Analgesia

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Background:The estimation of systolic blood pressure by disappearance and reappearance of the pulse oximeter trace during cuff inflation and deflation was compared with non-invasive blood pressure (NIBP) measurement, across the range of body mass index (BMI), during spinal anaesthesia for Caesarean section. Methods: Seventy-five parturients were recruited, with BMI of < 30 (Group 1), 30-40 (Group 2), and > 40 kg/m 2 ((morbidly obese, Group 3). A non-invasive blood pressure monitor was used with the pulse oximeter probe on the ipsilateral arm. Estimations were done before induction and 5 min after induction of spinal anaesthesia, during cuff inflation and deflation. Bland and Altman analysis was performed and the concordance correlation coefficient (r) estimated. Results: For estimation of systolic blood pressure during cuff inflation under spinal anaesthesia in Groups 1, 2 and 3: r = 0.57, 0.74 and 0.91; bias = -0.4, -2.9 and 0.8 mmHg, and limits of agreement = -27.7 to 26.9, -27.7 to 21.9, and -15.9 to 17.5 mmHg respectively. The mean (SD) time saved by estimation during inflation compared with measurement in Groups 1, 2 and 3 was 22.8 (13.2) s, 30.0 (11.6) s and 33.0 (15.6) s respectively. In Group 3, the percentage error was ± 13% of mean systolic blood pressure. Conclusions: Estimation of systolic blood pressure during cuff inflation under spinal anaesthesia in the morbidly obese is more precise than in lower BMI parturients. Time to estimation is relevantly shorter than measurement. This could improve patient safety by rapid and accurate identification of hypotension in these high-risk patients. This estimation method is associated with limits of agreement that may be clinically significant even in morbidly obese patients, and should not be considered a replacement for subsequent NIBP measurement.

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Section: Discussionmentioning

confidence: 99%

“…18 Most also used a manual BP cuff, which allowed control of the rate of inflation and deflation of the cuff, resulting in moderately accurate results with good correlation. [10][11][12]16,17 However, in obstetric anaesthesia practice, an NIBP device is used for automated regular and frequent determinations. …”

Section: Discussionmentioning

confidence: 99%

Observation of the pulse oximeter trace to estimate systolic blood pressure during spinal anaesthesia for Caesarean section: the effect of body mass index

Samuel

Dyk

Lombard

et al. 2017

Southern African Journal of Anaesthesia and Analgesia

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“…Wallace et al 8 compared 729 paired SBP readings obtained by oximetric or DUS technique and showed a high degree of correlation (r = 0.93). Korban et al, 9 in a similar study, compared SBP determined by pulse oximetry or Doppler during cuff inflation (ascending) and cuff deflation (descending).…”

Section: Discussionmentioning

confidence: 99%

Systolic arterial pressure determination by a new pulse monitor technique

1992

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“…1 The most important noninvasive monitoring techniques are Doppler ultrasound, oscillometry, the flush method and pulse oxymetry. 2,4,5,[8][9][10] Blood pressure measured using a Doppler ultrasound device connected to a mercury sphygmomanometer has a good correlation with invasive blood pressure measurements in newborns. 11 Oscillometry is widely used in neonatal intensive care units (NICU) because of its practicity.…”

Section: Comparison Of Noninvasive Techniques To Measure Blood Pressumentioning

confidence: 99%

Comparação de técnicas não invasivas para medir a pressão arterial em recém-nascidos

Ribeiro¹,

Fiori²,

Luz³

et al. 2011

J. Pediatr. (Rio J.)

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Objective: To compare blood pressure measurements in newborn infants using the flush method, pulse oximetry and oscillometry according to Doppler findings. Methods:Noninvasive blood pressure measurements were made using three techniques (flush method, pulse oximetry and oscillometry) in three groups of newborns: 15 normal term infants, 16 stable preterm infants, and 14 critically ill infants. All measurements were video recorded, edited separately, coded and analyzed independently by three neonatologists.Results: Fifty-seven measurements were made using each method. The flush method and pulse oximetry had a better correlation with Doppler findings than oscillometry (correlation coefficients: 0.89, 0.85, 0.71; p < 0.01). The difference between measurement means, their standard deviations and the 95% confidence intervals when compared with Doppler findings were: -5.2±7.9 (-21.1:10.7) mmHg for the flush method; 0.4±8.9 (-17.5:18.2) mmHg for pulse oximetry; and 6.4±16.1 (-25.8:8.6) mmHg for oscillometry. The flush method had a better agreement with Doppler findings for the diagnosis of hypotension than oximetry and oscillometry. Conclusions:The flush method and pulse oximetry seem to be useful techniques to measure systolic blood pressure in newborn infants; oscillometry had the poorest agreement with Doppler findings to detect hypotension.J Pediatr (Rio J). 2011;87(1):57-62: Hypotension, systolic blood pressure, newborn infant.

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Comparison of Blood Pressure Measurement by Doppler and by Pulse Oximetry Techniques

Cited by 32 publications

References 0 publications

Observation of the pulse oximeter trace to estimate systolic blood pressure during spinal anaesthesia for Caesarean section: the effect of body mass index

Observation of the pulse oximeter trace to estimate systolic blood pressure during spinal anaesthesia for Caesarean section: the effect of body mass index

Systolic arterial pressure determination by a new pulse monitor technique

Comparação de técnicas não invasivas para medir a pressão arterial em recém-nascidos

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