BMC Health Serv Res
October 2024
One third of 160 operatives working in a permanently noisy industrial environment, within the range of 63-8000 Hz and intensity of sound of about 100 db, were found to suffer from a syndrome of neurocirculatory asthenia and 8.1% from arterial hypertension. Study of the ECG according to the criteria of the Minnesota code showed an increased frequency of upward deflection of ST segment (index 9-2) in 20.
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