Background medical information
Indications / Contraindications / Side effects
1
Page 2
1.
Background medical information
Clinical preconditions
Ambulatory blood pressure measurement (ABPM) over a 24-hour period is an
important instrument nowadays for the diagnosis and treatment of hypertension.
As a result of the relatively high measurement density of about 70
measurements over 24 hours, the reliability of the evaluation of the true blood
pressure level increases significantly in comparison to individual
measurements. The following, among others, can be recorded by means of
ABPM:
The average blood pressure level,
Blood pressure fluctuations and blood pressure variability,
Increases in blood pressure which occur only in a clinical setting (office
hypertension),
The lack of or a decrease in the normal blood pressure decrease at night,
Unusual blood pressure increases (e.g. in the morning) or decreases.
Measurement algorithm
Blood pressure measurement in adults using the PremoPort
Four
is equivalent
to that performed by a trained and experienced person with a cuff and
stethoscope using the auscultatory method according to Korotkoff, phase V,
within the limit defined in the national American standard for electronic and
automated sphygmomanometers.
The algorithm also meets the requirements of the protocol for automated blood
pressure monitors of the British Hypertension Society. (The algorithm in
PremoPort
Four
corresponds to that of the Meditech ABPM-04 device which
achieved a quality class of B for systolic and diastolic accuracy. The validation
study was published in Blood Pressure Monitoring 1998; 3(6):363-8 by I Barna
& al).
1.1
Indications / Contraindications
Indications
The following indications are listed in the guidelines of the European Society of
Hypertension for ambulatory blood pressure measurements (2003):
Suspected white coat hypertension
Suspected nocturnal hypertension
Determination of nocturnal decrease in blood pressure
Treatment-resistant hypertension
Elderly patients
As a guideline for drug treatment with antihypertensives
Type 1 diabetes
Hypertension during pregnancy, including patients with preeclampsia
Assessment of hypotension
Autonomic disorders