QRS Opti 24-hour ABPM, Руководство пользователя

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Introduction to the Opti™ ABP System
Indications for Use
The Opti is a non-invasive oscillometric blood pressure monitor capable of measuring
systolic and diastolic blood pressures of adult patients (13 years or older). It is
intended for use as an aid or adjunct to diagnosis and treatment.
Operation
The Opti unit is worn by the patient on a waist belt and is connected to a cuff around
the non-dominant upper arm. The cuff is inflated automatically at intervals which
can be programmed during setup. Blood pressure is measured by the oscillometric
method which senses pressure waves in the artery when occluded by pressure in the
cuff. Measurement of the frequency of the pressure waves enables heart rate to also
be measured.
Blood pressure measurements determined with this device are equivalent to those
obtained by a trained observer using the cuff/stethoscope auscultation method, within
the limits prescribed by the
American National Standard, Electronic or Automated
Sphygmomanometers .
1
The Korotkoff sounds heard over the artery below the
compression cuff vary in character as the pressure in the cuff is reduced from above
systolic toward zero or atmospheric pressure. They are divided into phases. Phase
1 (K1) or systolic begins with the sudden appearance of a faint, clear tapping or
thumping sound that gradually increases in intensity. Phase 5 (K5) or diastolic begins
when silence develops, and was used to determine overall efficacy of the
Opti .
The Opti passes all requirements for validation by the International Protocol of the
European Society of Hypertension (ESH)
2
and British Society of Hypertension (BHS)
3
.
To obtain results of these studies please send a written request to :
QRS Diagnostic
6901 E. Fish Lake Road, Suite 188
Maple Grove, MN 55369 USA
1. Association for the Advancement of Medical Instrumentation. The National Standard of Electronic or Automated Sphygmomanometer.
Arlington, VA: AAMI; 1996
2. Jones, S. C., Bilous, M., Winship, S., Finn, P., & Goodwin, J. (2004). Validation of the Opti oscillometric 24-hour ambulatory blood pressure
monitor according to the International Protocol for the validation of blood pressure measuring devices. Blood Press Monitoring , 9(4),
219-223
3. Goodwin, J., Bilous, M., Winship, S., Finn, P., & Jones, S. (2007). Validation of the Opti oscillometric 24-h ambulatory blood pressure moni-
tor according to the British Hypertension Society protocol. Blood Pressure Monitoring, 12(2), 113 – 117.
Introduction to Ambulatory Blood Pressure Monitoring
Ambulatory blood pressure monitoring is an accepted clinical tool for collecting
multiple blood pressure measurements. It better assists clinicians with the diagnosis
and management of hypertension by providing: blood pressure variability, an
estimation of true blood pressure, overnight changes in blood pressure, and morning
surge in blood pressure.
1
In-clinic and home blood pressure measurements cannot
provide the same depth of information that a 24-hour study provides. Several studies
have shown that ambulatory blood pressure monitoring, when compared to clinic or
home blood pressure measurements, is superior in predicting target organ damage,
morbid events, or cardiovascular risk.
1, 2, 3
The data obtained from ambulatory blood pressure monitors is highly accurate and
useful for managing a wide variety of hypertensive situations including:
• White-coat hypertension
• Resistant hypertension
• Masked hypertension
• Childhood hypertension
• Efficacy of anti-hypertensive drug therapy on a 24-hour basis
• Nocturnal hypertension
• Episodic hypertension and/or anxiety disorders
• Hypotensive symptoms
• Changes in diet and daily routine designed to reduce hypertension
• Hypertension in pregnancy
1. Pickering, T.G., Shimbo, D., & Haas, D. (2006). Ambulatory Blood-Pressure Monitoring. New England Journal of Medicine , 354(22),
2368 – 2374.
2. Marchiando, R.J. & Elston, M.P. (2003). Automated Ambulatory Blood Pressure Monitoring: Clinical Utility in the Family Practice Setting.
American Family Physician , 67(11), 2343 – 2350.
3. White, W.B. (1999). Ambulatory blood pressure as a predictor of target organ disease and outcomes in the hypertensive patient.
Blood Pressure Monitoring , 4(3), 181 – 184.
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