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Noise Exposure in Pre-Hospital Critical Care

This study examines the noise exposure levels during ambulance transport of heart patients in North Jutland and its effects on the staff. The aim is to identify any noise exposure exceeding national occupational regulations and investigate the hearing of paramedics. Preliminary results show significant findings in the MECU Odense. Potential perspectives for mitigating noise exposure are discussed. Special thanks to the supervisors and funding organizations.

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Noise Exposure in Pre-Hospital Critical Care

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  1. Noise Exposure in Pre-Hospital Critical Care Mads Chr. Tofte Hansen PregraduateResearchstudent Mobile Emergency Care Unit Department of Anaesthesiology and Intensive Care

  2. Background • Stressed heart-patients during ambulance transport in the Region of North Jutland • High noise exposure • What about the staff?

  3. Studies

  4. National occupational regulative • Average exposure of 85 dB(A) during an 8 hour workday correlates to: • 88 dB(A) in 4 hours • 91 dB(A) in 2 hours • 94 dB(A) in 1 hours • 97 dB(A) in 30 minutes • 100 dB(A) in 15 minutes

  5. Purpose • Identify any noise exposure exceeding the National Occupational Regulations • Joint venture between National Helicopter Emergency Medical Services (HEMS) and Regional Mobile Emergency Care Units in (MECU) Odense, Aarhus and Kolding • Secondly: an investigation of paramedics hearing • Hypothesis?

  6. Method • 25 MECU Physicians, 25 HEMS Physicians and 25 HEMS pilots • 25 In-hospital controls • 50 Paramedics

  7. Results • 200 call outs with the MECU in Odense, Aarhus and Kolding (400 data files) • 3 call outs with the HEMS • 70 files analysed • Mixed effects regression with STATA IC 14

  8. Preliminary results MECU Odense

  9. Preliminary results P < 0,001 P < 0,05

  10. Perspectives • Better isolation? • Intercom system? • Active Noise Reduction? • Ear protection?

  11. A special thanks to • Head-supervisor Chief of MECU Odense M.D. Søren Mikkelsen • Supervisor M.D. PhD Jesper Hvass Schmidt • Co-supervisor M.D. Jakob Kjersgaard Johansen • Co-supervisor M.D. PhD Anne Craveiro Brøchner • Co-supervisor M.D. PhD Stine Thorhauge Zwisler • The Danish Helicopter Emergency Medical Services Research Fund • Ingeborg and Emanuels Memorial Trust

  12. Questions?

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