Evaluation of Correlation between Automatic Ocillometric Sphygmomanometer and Standard Korotkoff Auscultatory Sphygmomanometer

Background:Early diagnosis and treatment of hypertension is imperative to prevent the complications associated with this condition. The development of accurate and convenient methods of blood pressure measurement, therefore, is indispensible. At present, the JNC V has acknowledged the use of automatic sphygmomanometer that can be used without the help of someone else. We compared automatic oscillometric sphygmomanometers manufactured by Sein Electronics, korea (SE-7000 and SE-5000 with the standard Korotkoff auscultatory mercury sphygmomanometer meter. The correlation between these two methods were calulated to determine whether these prod- ucts could actually be used in clinical practice. This study was undertaken to ensure the clinical evaluation of these two products and standardization of an automatic sphygmomanometer in korea before it is actually used. Methods:The study included eighty-three patients, ranging in age from 14 to 81 years, who were admitted to Hanyang University Hospital in October, 1995. The blood pressure measured by the automatic oscillometric sphygmomanometer(SE-7000 in the right arm and was compared with that measured by the standard mercury sphygmomanometer(baumanometer in the left arm. Also the blood pressure measured by the automatic oscillometric sphygmoma-nometer(SE-5000 at the wrist was compared by the baumanometer in the same side arm. The correlation between these methods were determined by the paired Student' s t-test and by the simple liner regression method. Results:The p value of systolic blood pressure between two methods(SE-7000 and bauma- nomter in the both arms was 0.896 and correlation coefficient was 0.8286. The p value of diastolic