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Reliability of Telecommunications Systems Following a Major Disaster: Survey of Secondary and Tertiary Emergency Institutions in Miyagi Prefecture During the Acute Phase of the 2011 Great East Japan Earthquake

Published online by Cambridge University Press:  21 February 2014

Daisuke Kudo ,
Hajime Furukawa ,
Atsuhiro Nakagawa ,
Yoshiko Abe ,
Toshikatsu Washio ,
Tatsuhiko Arafune ,
Dai Sato ,
Satoshi Yamanouchi ,
Sae Ochi  and
Teiji Tominaga
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Daisuke Kudo*
Affiliation:
Department of Emergency and Critical Care Medicine/Emergency Center, Tohoku University Hospital, Sendai, Miyagi, Japan
Hajime Furukawa
Affiliation:
Department of Emergency and Critical Care Medicine/Emergency Center, Tohoku University Hospital, Sendai, Miyagi, Japan
Atsuhiro Nakagawa
Affiliation:
Department of Emergency and Critical Care Medicine/Emergency Center, Tohoku University Hospital, Sendai, Miyagi, Japan Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
Yoshiko Abe
Affiliation:
Department of Emergency and Critical Care Medicine/Emergency Center, Tohoku University Hospital, Sendai, Miyagi, Japan
Toshikatsu Washio
Affiliation:
Human Technology Research Institute, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
Tatsuhiko Arafune
Affiliation:
Department of Engineering, University of Tokyo, Tokyo, Japan
Dai Sato
Affiliation:
Medical IT Center, Tohoku University Hospital, Sendai, Japan
Satoshi Yamanouchi
Affiliation:
Department of Emergency and Critical Care Medicine/Emergency Center, Tohoku University Hospital, Sendai, Miyagi, Japan
Sae Ochi
Affiliation:
MRC-HPA Centre for Environment and Health, Imperial College, London, United Kingdom
Teiji Tominaga
Affiliation:
Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan
Shigeki Kushimoto
Affiliation:
Department of Emergency and Critical Care Medicine/Emergency Center, Tohoku University Hospital, Sendai, Miyagi, Japan
*
Correspondence: Daisuke Kudo, MD, PhD Department of Emergency and Critical Care Medicine/Emergency Center Tohoku University Hospital 1-1 Seiryo-machi, Aoba-ku Sendai, Miyagi 980-8574, Japan E-mail [email protected]
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Abstract

Introduction

Telecommunication systems are important for sharing information among health institutions to successfully provide medical response following disasters.

Hypothesis/Problem

The aim of this study was to clarify the problems associated with telecommunication systems in the acute phase of the Great East Japan Earthquake (March 11, 2011).

Methods

All 72 of the secondary and tertiary emergency hospitals in Miyagi Prefecture were surveyed to evaluate the telecommunication systems in use during the 2011 Great Japan Earthquake, including satellite mobile phones, multi-channel access (MCA) wireless systems, mobile phones, Personal Handy-phone Systems (PHS), fixed-line phones, and the Internet. Hospitals were asked whether the telecommunication systems functioned correctly during the first four days after the earthquake, and, if not, to identify the cause of the malfunction. Each telecommunication system was considered to function correctly if the hospital staff could communicate at least once in every three calls.

Results

Valid responses were received from 53 hospitals (73.6%). Satellite mobile phones functioned correctly at the highest proportion of the equipped hospitals, 71.4%, even on Day 0. The MCA wireless system functioned correctly at the second highest proportion of the equipped hospitals. The systems functioned correctly at 72.0% on Day 0 and at 64.0% during Day 1 through Day 3. The main cause of malfunction of the MCA wireless systems was damage to the base station or communication lines (66.7%). Ordinary (personal or general communication systems) mobile phones did not function correctly at any hospital until Day 2, and PHS, fixed-line phones, and the Internet did not function correctly at any area hospitals that were severely damaged by the tsunami. Even in mildly damaged areas, these systems functioned correctly at <40% of the hospitals during the first three days. The main causes of malfunction were a lack of electricity (mobile phones, 25.6%; the Internet, 54.8%) and damage to the base stations or communication lines (the Internet, 38.1%; mobile phones, 56.4%).

Conclusion

Results suggest that satellite mobile phones and MCA wireless systems are relatively reliable and ordinary systems are less reliable in the acute period of a major disaster. It is important to distribute reliable disaster communication equipment to hospitals and plan for situations in which hospital telecommunications systems do not function.

KudoD , FurukawaH , NakagawaA , AbeY , WashioT , ArafuneT , SatoD , YamanouchiS , OchiS , TominagaT , KushimotoS . Reliability of Telecommunications Systems Following a Major Disaster: Survey of Secondary and Tertiary Emergency Institutions in Miyagi Prefecture During the Acute Phase of the 2011 Great East Japan Earthquake. Prehosp Disaster Med. 2014;29(1):1-5.

Keywords

communication systemsdisaster medicineinformation and communicationMCA wireless systemsatellite mobile phone
Type
Brief Report
Information
Prehospital and Disaster Medicine , Volume 29 , Issue 2 , April 2014 , pp. 204 - 208
Copyright
Copyright © World Association for Disaster and Emergency Medicine 2014 

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References

1. Miyagi Prefecture Disaster Medicine Headquarters. Report of the questionnaire about the Great East Japan Earthquake [in Japanese]. Miyagiken Ishikaiho. 2011;787:529-542.Google Scholar
2. Miyagi Medical Association. Look back over the Great East Japan Earthquake [in Japanese]. Miyagiken Ishikaiho. 2011;789:713-735.Google Scholar
3. Satomi, S. The Great East Japan Earthquake: Tohoku University Hospital's efforts and lessons learned. Surg Today. 2011;41:1171-1181.CrossRefGoogle ScholarPubMed
4. Nakagawa, A, Furukawa, H, Kudo, D, et al. Lessons from chronological analysis during first 72 hours after the Great East Japan Earthquake: report from Tohoku University Hospital [in Japanese]. Journal of Japanese Congress on Neurological Emergencies. 2012;24:24-31.Google Scholar
5. Yamanouchi, S, Inoue, J, Yamada, Y, et al. Actions of the Miyagi Prefectural Operational Headquarters for DMAT regarding the Great East Japan Earthquake [in Japanese]. Japanese Journal of Disaster Medicine. 2012;17:38-44.Google Scholar
6. Pan American Health Organization. Hospital Safety Index: Evaluation Forms for Safe Hospitals. Washington D.C., USA: PAHO; 2008:19.Google Scholar
7. The situation of damage of the Great East Japan Earthquake [in Japanese]. Miyagi Prefecture Website. http://www.pref.miyagi.jp/kikitaisaku/higasinihondaisinsai/higaizyoukyou.htm. Accessed Oct 30, 2012.Google Scholar
8. Miyamoto, M, Sako, M, Irie, M, et al. Great earthquakes and medical information systems, with special reference to Telecommunications. JAMIA. 1999;6:252-258.Google Scholar
9. Logistics Telecommunication Training in disaster [in Japanese]. In: Training Program Investigation Committee of DMAT Secretariat eds, Manual for Students of Japan DMAT Member Training Course, ver. 3.0.:107-114.Google Scholar
10. Minoura, K, Imamura, F, Sugawara, D, et al. The 869 Jogan tsunami deposit and recurrence interval of large-scale tsunami on the Pacific coast of northeast Japan. J Natural Disaster Sci. 2001;23:83-88.Google Scholar
11. Tome, Y. Experience in the disaster medicine [in Japanese]. Miyagiken Ishikaiho. 2011;785:336-337.Google Scholar
12. The disaster and SNS [in Japanese]. Nikkei Trendy Net. http://trendy.nikkeibp.co.jp/article/pickup/20110427/1035385/. Accessed December 27, 2012.Google Scholar
13. Analysis of action and mind of 88000 people in Japan during the tsunami and earthquake occurring [in Japanese]. Weather News Website. http://weathernews.com/ja/nc/press/2011/pdf/20110428_2.pdf. Accessed December 27, 2012.Google Scholar