Continuous noninvasive finger blood pressure recording via FINAPRES closely matched intra-arterial monitoring, with an average resting discrepancy of 6.5 mm Hg systolic and 5.4 mm Hg diastolic.
Observational (n=24)
Does continuous noninvasive finger blood pressure recording via the FINAPRES device accurately measure blood pressure compared to intra-arterial monitoring in normotensive or essential hypertensive subjects?
Continuous noninvasive finger blood pressure recording via the FINAPRES device provides blood pressure measurements and beat-to-beat changes that closely correspond to intra-arterial monitoring.
The accuracy of blood pressure values obtained by continuous noninvasive finger blood pressure recording via the FINAPRES device was evaluated by comparison with simultaneous intraarterial monitoring both at rest and during performance of tests known to induce fast and often marked changes in blood pressure. The comparison was performed in 24 normotensive or essential hypertensive subjects. The average discrepancy between finger and intra-arterial blood pressure recorded over a 30-minute rest period was 6.5 +/- 2.6 mm Hg and 5.4 +/- 2.9 mm Hg for systolic and diastolic blood pressure, respectively; a close between-method correspondence was also demonstrated by linear regression analysis. The beat-to-beat changes in finger systolic and diastolic blood pressure were on average similar to those measured intra-arterially during tests that induced a pressor or depressor response (hand-grip, cold pressor test, diving test, Valsalva maneuver, intravenous injections of phenylephrine and trinitroglycerine) as well as during tests that caused vasomotor changes without major variations in blood pressure (application of lower body negative pressure, passive leg raising). The average between-method discrepancy in the evaluation of blood pressure changes was never greater than 4.3 and 2.0 mm Hg for systolic and diastolic blood pressure, respectively; the corresponding standard deviations ranged between 4.6 and 1.6 mm Hg. Beat-to-beat computer analysis of blood pressure variability over the 30-minute rest period provided standard deviations almost identical when calculated by separate consideration of intra-arterial and finger blood pressure tracings (3.7 and 3.8 mm Hg, respectively).(ABSTRACT TRUNCATED AT 250 WORDS)
Parati et al. (1989) conducted an observational in Normotension or essential hypertension (n=24). Continuous noninvasive finger blood pressure recording (FINAPRES) vs. Simultaneous intra-arterial monitoring was evaluated on Discrepancy between finger and intra-arterial blood pressure. Continuous noninvasive finger blood pressure recording via FINAPRES closely matched intra-arterial monitoring, with an average resting discrepancy of 6.5 mm Hg systolic and 5.4 mm Hg diastolic.
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