title: Automated self-initiated blood pressure or 24-hour ambulatory blood pressure monitoring in pregnancy?
abstract: OBJECTIVE
  To determine whether self-initiated and recorded automated blood pressure measurement can provide an accurate estimate of ambulatory blood pressure in pregnant women suspected of having 'white coat hypertension'.
  
  
  METHODS
  A prospective observational study.
  
  
  METHODS
  Women's and Children's Health Unit, St George Hospital, a teaching hospital of the University of New South Wales.
  
  
  METHODS
  Pregnant women being assessed for possible 'white-coat hypertension'.
  
  
  METHODS
  Sixty-six pregnant women who were undergoing 24 hour ambulatory blood pressure monitoring (ABPM) in their home or work environment also measured their blood pressure six times during this interval using a self-initiated automated blood pressure recorder (Omron HEM 705CP). Agreement between awake ABPM and Omron recorded blood pressures was tested by Bland-Altman analysis.
  
  
  METHODS
  Limits of agreement between blood pressures measured by each device.
  
  
  RESULTS
  Average blood pressures obtained by the two devices were identical (125/77 mmHg) but limits of agreement were wide, -20 to +23 mmHg for systolic blood pressure and -9 to +15 mmHg for diastolic blood pressure.
  
  
  CONCLUSIONS
  The Omron HEM 705CP is a useful device for measuring group average blood pressures in pregnant women suspected of having white coat hypertension but cannot reliably replace ABPM for clinical management of individual pregnant women.
authors.affiliation: Departments of Renal Medicine and Women's and Children's Health, St George Hospital and University of New South Wales, Kogarah, Sydney, Australia.
authors.forename: M A
authors.initials: MA
authors.lastname: Brown
authors.forename: L
authors.initials: L
authors.lastname: McHugh
authors.forename: G
authors.initials: G
authors.lastname: Mangos
authors.forename: G
authors.initials: G
authors.lastname: Davis
mesh_terms: D001794:Blood Pressure / Q000502:physiology; D018660:Blood Pressure Monitoring, Ambulatory / Q000592:standards*; D002940:Circadian Rhythm; D005260:Female; D006801:Humans; D006973:Hypertension / Q000175:diagnosis* / Q000503:physiopathology; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular / Q000175:diagnosis* / Q000503:physiopathology; D011295:Prenatal Care / Q000379:methods* / Q000592:standards; D011446:Prospective Studies; D012648:Self Care; D012680:Sensitivity and Specificity