A new compact 24-hour indirect blood-pressure recorder and its clinical application.
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概要
- 論文の詳細を見る
A new portable noninvasive recorder (4×6.5×14cm in size, 390g in weight) was developed for monitoring 24-hour blood pressure and its clinical applicability was investigated. Employing an ordinary-size cuff, this is the lightest and the most compact apparatus of its kind ever developed. It is powered by a rechargeable battery. The cuff is pressurized by a miniature, low-noise, rotary micropump. To eliminate noises resulting from body motion, two microphones are used to distinguish Korotkoff sounds. Systolic blood pressure (SBP), diastolic blood pressure (DBP), and heart rate (HR) are measured automatically at intervals of 1 to 60 min throughout 24 hours. These data can be stored as many as 600 times in the recorder's semiconductor memory. After measurement, mean values; standard deviations (SD); and trendograms of SBP, DBP, and HR are printed out by means of an appurtenant, miniature analyzer measuring 5×7.5×15cm.A comparison of values obtained with this new instrument and the values obtained with a conventional auscultatory method showed average errors of -1.2±4.7 (SD)mmHg for SBP and -2.7±5.0mmHg for DBP. The correlation coefficient (r) of values obtained by two methods was r=0.99 for SBP and r=0.96 for DBP (n=185). In 38 male and 31 female normotensive subjects (average casual BP: male 126±11/76±7mmHg; female 116±13/69±10mmHg), average 24-hour BP values recorded by the new recorder were 115±7.5 (SBP)/70±6 (DBP)mmHg for the males and 106±6/63±5mmHg for the females. The new recorder seems to be convenient, easy to operate, and clinically useful in ambulatory monitoring.
- International Heart Journal刊行会の論文
著者
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ISHII Masao
Second Department of Internal Medicine, School of Medicine, Yokohama City University
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Minamisawa Kohsuke
Second Department Of Internal Medicine Yokohama City University School Of Medicine
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Ishii Masao
Second Department Of Internaal Medicine Yokohama City University
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Miyajima Eiji
Second Department Of Internal Medicine School Of Medicine Yokohama City University
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Tochikubo Osamu
Second Department Of Internaal Medicine Yokohama City University
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Tochikubo Osamu
Second Department of Internal Medicine, School of Medicine, Yokohama City University
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MIYAJIMA Eiji
Second Department of Internal Medicine, School of Medicine, Yokohama City University
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MINAMISAWA Kohsuke
Second Department of Internal Medicine, School of Medicine, Yokohama City University
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YANAGA Akihiko
Research & Development Section, Takeda Medical, Inc.
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YUKINARI Youji
Research & Development Section, Takeda Medical, Inc.
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YANAGA Akihiko
Research & Development Section, Takeda Medical, Inc.
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