Faculty Collaboration Database

Noninvasive Blood Pressure Monitor Designed for Patients With Heart Failure Supported with Continuous-Flow Left Ventricular Assist Devices. ASAIO J 2019 Feb;65(2):127-133

Date

03/15/2018

Pubmed ID

29538016

Pubmed Central ID

PMC6136985

DOI

10.1097/MAT.0000000000000775

Scopus ID

2-s2.0-85060606847 (requires institutional sign-in at Scopus site)   10 Citations

Abstract

The gold standard for noninvasive blood pressure (BP) measurement, the Doppler technique, does not provide systolic blood pressure (SBP) and diastolic blood pressure (DBP) and may limit therapy outcomes. To improve patient care, we tested specifically designed experimental BP (ExpBP) monitor and the Doppler technique by comparing noninvasive measures to the intraarterial (I-A) BP in 31 patients with end-stage heart failure (4 females) 2.6 ± 3.4 days post-LVAD implantation (20 HeartMate II and 11 HeartWare). Bland-Altman plots revealed that the ExpBP monitor overestimated mean arterial pressure (MAP) by 1.2 (4.8) mm Hg (mean difference [standard deviation]), whereas the Doppler by 6.7 (5.8) mm Hg. The ExpBP SBP was overestimated by 0.8 (6.1) mm Hg and DBP by 1.9 (5.3) mm Hg compared with the respective I-A pressures. Both techniques achieved similar measurement reliability. In the measurement "success rate" expressed as a frequency (percent) of readable BP values per measurement attempts, Doppler accomplished 100% vs. 97%, 97%, and 94% of successful detections of MAP, SBP, and DBP provided by the ExpBP monitor. The ExpBP monitor demonstrated higher accuracy in the MAP assessment than the Doppler in addition to providing SBP and DBP in majority of subjects. Improved BP control may help to mitigate related neurologic adverse event rates.

Author List

Sajgalik P, Kremen V, Fabian V, Maltais S, Stulak JM, Kushwaha SS, Joyce LD, Schirger JA, Johnson BD

MESH terms used to index this publication - Major topics in bold

Arterial Pressure
Blood Pressure Determination
Blood Pressure Monitors
Female
Heart Failure
Heart-Assist Devices
Humans
Male
Middle Aged
Reproducibility of Results