Advances in neonatal care : official journal of the National Association of Neonatal Nurses
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A preliminary study of a new optical oscillometric method to noninvasively measure systolic, mean, and diastolic blood pressures, in addition to heart and respiratory rates in very small extremities, is described. It employs transillumination of an extremity and measures the optical oscillation amplitude during cuff deflation from suprasystolic to zero pressure. The amplitude of the optical pulsatile oscillations is similar to that produced with the conventional pneumatic oscillometric method; however, the pulsatile optical signal is much larger and is present at all times when the cuff is deflated. ⋯ This new optical oscillometric technique simplifies noninvasive blood pressure measurement because it was designed specifically for small-diameter extremities such as those found in low birth-weight infants. This new optical oscillometric device has the added benefit of continually monitoring pulse and respiration rates.
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Letter Historical Article
Learning from our past, looking forward to our future.