IADR Abstract Archives
Accuracy of Blood Pressure Measuring Devices Used at VCU SoD
Objectives: The standard of care for all patients in the student dental clinics at VCU School of Dentistry (SoD) includes a BP measurement and an assessment of patient safety to receive elective dental procedures. We aim to validate the accuracy of electronic oscillometric wrist sphygmomanometers that are routinely used against a calibrated brachial sphygmomanometer used extensively throughout VCU Health facilities, DINAMAP (device for indirect non-invasive mean arterial pressure).
Methods: Preliminary survey was conducted to determine most commonly used BP cuffs, designated Bp1, 2, and 3. Baseline BP was recorded on 60 individuals according to recommended guidelines using a calibrated DINAMAP PRO400 monitor. The participants were seated for 5 minutes and 8 pairs of BP measurements recorded for each participant. Automated devices were in a randomized sequence including: DINAMAP, BP1, BP2 and BP3; blood pressures were repeated for each participant. The interval between individual readings was set to one minute. Mean systolic and diastolic pressures for each device (with SD) and mean differences (with SD) between the test devices and DINAMAP was reported.
Results: 12 device brands were tested. Three cuffs were equivalent to DINAMAP average difference systolic values (average differences 2.91, 2.6, 1.29, with 90% CI with bounds of +/- 7.3 mmHg), and none were equivalent for diastolic (bounds of +/- 4.5 mmHg). The CVS and Smart Touch brands displayed significant difference in measurements from the DINAMAP ([LSM] systolic = 0.0147 and 0.0083; p <0.05). Magic Fly and Life Source displayed tested significantly different in diastolic measurements ([LSM]= 0.0034 and 0.028; p< 0.05).
Conclusions: Dentists depend on the rBP devices to screen and manage hypertension, a disease with high morbidity and mortality. Literature dictates rBP measuring devices to be inaccurate; however, within the scope of our study, we identified at least three commercially available rBP devices were equivalent to DINAMAP
Methods: Preliminary survey was conducted to determine most commonly used BP cuffs, designated Bp1, 2, and 3. Baseline BP was recorded on 60 individuals according to recommended guidelines using a calibrated DINAMAP PRO400 monitor. The participants were seated for 5 minutes and 8 pairs of BP measurements recorded for each participant. Automated devices were in a randomized sequence including: DINAMAP, BP1, BP2 and BP3; blood pressures were repeated for each participant. The interval between individual readings was set to one minute. Mean systolic and diastolic pressures for each device (with SD) and mean differences (with SD) between the test devices and DINAMAP was reported.
Results: 12 device brands were tested. Three cuffs were equivalent to DINAMAP average difference systolic values (average differences 2.91, 2.6, 1.29, with 90% CI with bounds of +/- 7.3 mmHg), and none were equivalent for diastolic (bounds of +/- 4.5 mmHg). The CVS and Smart Touch brands displayed significant difference in measurements from the DINAMAP ([LSM] systolic = 0.0147 and 0.0083; p <0.05). Magic Fly and Life Source displayed tested significantly different in diastolic measurements ([LSM]= 0.0034 and 0.028; p< 0.05).
Conclusions: Dentists depend on the rBP devices to screen and manage hypertension, a disease with high morbidity and mortality. Literature dictates rBP measuring devices to be inaccurate; however, within the scope of our study, we identified at least three commercially available rBP devices were equivalent to DINAMAP