Simultaneous Ambulatory Electrocardiography and Pulse Oximetry.

DOI PubMed 10 References
  • Nakamoto Takaaki
    First Department of Internal Medicine, Dokkyo University School of Medicine
  • Momoki Shigeru
    First Department of Internal Medicine, Dokkyo University School of Medicine
  • Harasawa Hiroshi
    First Department of Internal Medicine, Dokkyo University School of Medicine
  • Kato Shiro
    First Department of Internal Medicine, Dokkyo University School of Medicine
  • Hase Tatsuya
    First Department of Internal Medicine, Dokkyo University School of Medicine
  • Kuga Hideyo
    First Department of Internal Medicine, Dokkyo University School of Medicine
  • Ohno Kunihiko
    First Department of Internal Medicine, Dokkyo University School of Medicine
  • Mori Hiromi
    First Department of Internal Medicine, Dokkyo University School of Medicine
  • Saitoh Koh-ichi
    ECG Development Department Fukuda Denshi KK
  • Iizuka Masahiko
    First Department of Internal Medicine, Dokkyo University School of Medicine
  • Okamoto Shingo
    First Department of Internal Medicine, Dokkyo University School of Medicine

Bibliographic Information

Other Title
  • ＳｐＯ２・心電図ホルターモニタリングによる低酸素血症と不整脈の診断装置の開発

Search this article

Description

We developed a system for 24-hour ambulatory recording of blood oxygenation (SpO2) and electrocardiography (ECG). Using this system, we studied 10 healthy volunteers and 7 patients with chronic pulmonary diseases. The system incorporated a portable pulse oximeter (SM50) manufactured by Fukuda Denshi KK; the first and second channels were used to record ECG data and the third was used to record SpO2 data. An SpO2 sensor (Dispo-sensor D-25; Nellcor Inc.) was applied to the fourth or fifth finger. The SpO2 data (MicrO2; Siemens AG) were digitized and stored in the ambulatory recording device; the ECG was recorded simultaneously. The data were analyzed with a model DMW-9000H analyzer (Fukuda Denshi KK). A custom-designed program was also used, to remove noise errors. In the healty volunteers, SpO2 was at least 90% for the entire 24 hours. In all the patients, SpO2 fell below 90% at rest during the night or after a 15-minute walk. Transient atrial tachycardia was observed in 3 patients, and during the tachycardia the SpO2 was low. The number of extra ventricular beats divided by the total number of beats increased more in the patients than in the healthy volunteers (1.21±0.89 vs 0.6±0.3%, p<0.05). SpO2 did not change significantly in the patients.<br>In outpatients and in patients receiving home health care, the present system facilitates simultaneous diagnosis of respiratory failure and arrhythmias. In patients with chronic pulmonary diseases desaturation may cause transient atrial tachycardia.

Journal

References(10)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top