Document Detail

Hemodynamic and hormonal changes induced by noise.
MedLine Citation:
PMID:  373395     Owner:  NLM     Status:  MEDLINE    
Eighteen healthy male volunteers with normal hearing were exposed to industrial noise at different sound levels (75, 85 and 95 dB A) in a noise laboratory. Blood pressure, heart rate, stroke volume and cardiac output were recorded with noninvasive techniques. Adrenaline and noradrenaline concentration in venous plasma were analyzed before and during noise exposure. The mean resting blood pressure of the whole group was 120/70 mm Hg. During noise stimulation diastolic blood pressure increased (12.2%, p less than 0.001) as did mean arterial pressure (6.6%, p less than 0.001) and total peripheral resistance (12.7%, p less than 0.001). Stroke volume (7.3%, p less than 0.001) and cardiac output (5.0%, p less than 0.01) were both reduced at 95 dB A. Heart rate and systolic blood pressure did not change significantly. At 75 and 85 dB A there were similar but smaller changes in the hemodynamic parameters. There were no changes in adrenaline and noradrenaline in plasma during maximal noise exposure. The noise induced hemodynamic changes remained 5 minutes after the noise stimulation was stopped but had disappeared after 10 minutes of rest.
L Andrén; L Hansson; M Björkman; A Jonsson; K O Borg
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Publication Detail:
Type:  Clinical Trial; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  Acta medica Scandinavica. Supplementum     Volume:  625     ISSN:  0365-463X     ISO Abbreviation:  Acta Med. Scand. Suppl.     Publication Date:  1979  
Date Detail:
Created Date:  1979-06-26     Completed Date:  1979-06-26     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0370331     Medline TA:  Acta Med Scand Suppl     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  13-8     Citation Subset:  IM    
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MeSH Terms
Blood Pressure
Cardiac Output
Clinical Trials as Topic
Epinephrine / blood*
Heart Rate
Noise, Occupational*
Norepinephrine / blood*
Stroke Volume
Time Factors
Reg. No./Substance:
51-41-2/Norepinephrine; 51-43-4/Epinephrine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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