Open AccessAccuracy of Doppler blood pressure measurement in continuous‐flow left ventricular assist device patients
Author(s) -
Li Song,
Beckman Jennifer A.,
Welch Nathan G.,
Bjelkengren Jason,
Masri Sofia Carolina,
Minami Elina,
StempienOtero April,
Levy Wayne C.,
O'Brien Kevin D.,
Lin Shin,
Farris Stephen D.,
Cheng Richard K.,
Wood Gregory,
Koomalsingh Kevin,
Kirkpatrick James,
McCabe James,
Leary Peter J.,
Chassagne Fanette,
Chivukula Venkat Keshav,
Aliseda Alberto,
Mahr Claudius
Publication year - 2019
Publication title -
esc heart failure
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.787
H-Index - 25
ISSN - 2055-5822
DOI - 10.1002/ehf2.12456
Subject(s) - medicine , cardiology , doppler effect , blood pressure , gold standard (test) , hemodynamics , doppler echocardiography , mean arterial pressure , diastole , heart rate , physics , astronomy
Aims Accurate blood pressure (BP) measurement in continuous‐flow ventricular assist device (CF‐VAD) patients is imperative to reduce stroke risk. This study assesses the accuracy of the Doppler opening pressure method compared with the gold standard arterial line method in CF‐VAD patients. Methods and results In a longitudinal cohort of HeartMate II and HVAD patients, arterial line BP and simultaneously measured Doppler opening pressure were obtained. Overall correlation, agreement between Doppler opening pressure and arterial line mean vs. systolic pressure, and the effect of arterial pulsatility on the accuracy of Doppler opening pressure were analysed. A total of 1933 pairs of Doppler opening pressure and arterial line pressure readings within 1 min of each other were identified in 154 patients (20% women, mean age 55 ± 15, 50% HeartMate II and 50% HVAD). Doppler opening pressure had good correlation with invasive mean arterial pressure ( r = 0.742, P < 0.0001) and more closely approximated mean than systolic BP (mean error 2.4 vs. −8.4 mmHg). Arterial pulsatility did not have a clinically significant effect on the accuracy of the Doppler opening pressure method. Conclusions Doppler opening pressure should be the standard non‐invasive method of BP measurement in CF‐VAD patients.