Standard office device
The Omron M6 Comfort is an oscillometric automatic digital upper arm
blood pressure monitor suitable for home and clinical blood pressure
measurements, which is frequently used but also not validated in
pregnancy (Table 1). However, comparable other series of Omron
Healthcare have been validated in pregnancy.21 It is
not possible to link the connected device to the to the patients’
medical records. In our hospital this device was used at the time of
phase 1 of this study as a standard for measuring blood pressure at the
outpatient clinic.
The Welch Allyn 53000P is an oscillometric automatic digital upper arm
blood pressure monitor suitable for clinical blood pressure
measurements, which has been validated for the use in
pregnancy22 (Table 1). To deal with the influence of
physician induced white coat hypertension, we changed the logistic at
our outpatient clinic during phase 2 of this study, where standard
office blood pressure measurement was performed in a quiet room by an
obstetric nurse. For this, Welch Allyn 5300P was used.