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Comparison of cuff-based and cuffless continuous blood pressure measurements in children and adolescents
Jacek Zachwieja1, Anna Neyman-Bartkowiak1, Alina Rabiega1
1Department of Pediatric Nephrology and Hypertension, Poznan University of Medical Sciences , Poznan, Poland.
Insights
This study compared cuffless blood pressure (BP) devices using pulse transit time (PTT) with standard cuff-based measurements in children. While correlated, the cuffless device showed higher BP readings and results are not directly interchangeable with traditional methods.
Area of Science:
- Biomedical Engineering
- Cardiovascular Research
- Pediatric Health
Background:
- Emerging cuffless blood pressure (BP) measurement devices utilize pulse transit time (PTT).
- The clinical comparability of these novel devices with standard ambulatory BP monitoring in pediatric populations remains largely uninvestigated.
Purpose of the Study:
- To evaluate the agreement between BP measurements obtained from a cuffless PTT device and a standard cuff-based ambulatory BP monitoring (ABPM) device in children.
- To determine if BP values from the cuffless device are interchangeable with traditional cuff-based measurements.
Main Methods:
- Prospective study involving thirty children.
- Simultaneous BP measurements were taken using a cuffless PTT device (Somnotouch-NIBP) and a standard cuff-based device (Omron 907) on both arms.
Main Results:
- Significant positive correlations were observed between the cuffless PTT device and standard cuff-based measurements for both systolic BP (SBP) and diastolic BP (DBP).
- The cuffless device yielded higher mean SBP (127.48 ± 15.98 mmHg) and DBP (68.52 ± 12.36 mmHg) compared to the standard device (SBP: 123.47 ± 14.91 mmHg; DBP: 66.88 ± 11.86 mmHg).
- Differences in SBP between the methods could reach up to 20 mmHg.
Conclusions:
- The developed pulse wave velocity-BP (PWV-BP) function demonstrates a significant correlation with sphygmomanometry-derived SBP.
- Mean 24-hour, awake, and asleep BP values from the cuffless device are not directly interchangeable with cuff-based ABPM values.
- Despite observed differences, cuffless BP monitoring systems offer promising novel solutions for various clinical applications.
Objective:
In recent times, new methods of blood pressure measurements have been introduced, including cuffless blood pressure (BP) measurement device using pulse transit time (PTT) for calculation of BP values. However, it is still unknown how values obtained with a new cuffless device compare with standard ambulatory measurements in children. The main aim of the study was to investigate whether BP values measured by a cuffless PTT device are comparable with measurements by a standard upper arm cuff-based BP device.
Methods:
Thirty children were prospectively included. Blood pressure measurements using the cuffless device (Somnotouch-NIBP) and cuff-based standard device (Omron 907) were performed simultaneously on the left and right arm.
Results:
Mean systolic BP of the standard measurements was 123,47 ± 14,91 mmHg and 127,48 ± 15,98 mmHg (p < .001) measured by cuffless method. Mean diastolic BP of the standard ABPM measurements was 66,88 ± 11,86 mmHg and 68,52 ± 12,36 mmHg (p < .001). There were significant positive correlations between standard and cuffless measurements.
Conclusion:
The results show that the created PWV-BP function produces a significant correlation between BP derived from the PWV and the SBP measured by sphygmomanometry. When applying this device in clinical practice, one may keep in mind that the reported mean values over 24 hours, awake and asleep time are not directly interchangeable with cuff-based standard 24-hour BP values. The measured BP values were higher by the new technique. Although differences in SBP between both methods reached values up to 20 mmHg, we think that the development of a cuffless BP monitoring system will provide novel solutions in various medical situations.
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