Effect of low frequency noise on the echocardiographic parameter E/A ratio

Pao Chiang Chao, Ching-Ying Yeh, Yow Jer Juang, Ching Yao Hu, Chiou Jong Chen

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The hearing condition of the Taiwanese aerospace maintenance workers affected by the low frequency noise had not been reported. The purpose of this research is to clarify the maintenance workers′ health effect when exposed to low frequency and/or general noises and to understand the relationship between the variations of the worker′s echocardiographic E/A ratio and the low frequency noise. The low frequency noise monitoring and echocardiographic E/A ratio results obtained for 213 aerospace maintenance workers indicated that the workers′ hearing loss was more serious at high frequency 4k and 6k when exposed to the low frequency noise and could be more than 40 dB. The abnormality of echocardiographic E/A ratio was also higher than that of control group.

Original languageEnglish
Pages (from-to)155-158
Number of pages4
JournalNoise and Health
Issue number59
Publication statusPublished - Jul 2012


  • Echocardiography E/A ratio
  • hearing loss
  • low frequency noise

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Public Health, Environmental and Occupational Health
  • Speech and Hearing


Dive into the research topics of 'Effect of low frequency noise on the echocardiographic parameter E/A ratio'. Together they form a unique fingerprint.

Cite this