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Titolo:
Transient but not sustained blood pressure increments by occupational noise. An ambulatory blood pressure measurement study
Autore:
Fogari, R; Zoppi, A; Corradi, L; Marasi, G; Vanasia, A; Zanchetti, A;
Indirizzi:
Univ Pavia, Policlin San Matteo, IRCCS, Clin Med 1,Dipartimento Med Interna & Terapia Med, I-27100 Pavia, Italy Univ Pavia Pavia Italy I-27100 terna & Terapia Med, I-27100 Pavia, Italy Univ Milan, Osped Maggiore, Ist Auxol Italiano, Ist Clin Med,Ctr Fisiol Clin & Ipertens, Milan, Italy Univ Milan Milan Italy lin Med,Ctr Fisiol Clin & Ipertens, Milan, Italy
Titolo Testata:
JOURNAL OF HYPERTENSION
fascicolo: 6, volume: 19, anno: 2001,
pagine: 1021 - 1027
SICI:
0263-6352(200106)19:6<1021:TBNSBP>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
LEFT-VENTRICULAR HYPERTROPHY; HEART-RATE; CARDIOVASCULAR RISK; ARTERIAL-PRESSURE; STARTLE STIMULUS; EXPOSURE; HYPERTENSION; RESPONSES; DISEASE;
Keywords:
ambulatory blood pressure monitoring; blood pressure; noise;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Fogari, R Univ Pavia, Policlin San Matteo, IRCCS, Clin Med 1,Dipartimento Med Interna & Terapia Med, Piazzale Golgi 2, I-27100 Pavia, Italy Univ Pavia Piazzale Golgi 2 Pavia Italy I-27100 00 Pavia, Italy
Citazione:
R. Fogari et al., "Transient but not sustained blood pressure increments by occupational noise. An ambulatory blood pressure measurement study", J HYPERTENS, 19(6), 2001, pp. 1021-1027

Abstract

Objective Studies on the effects of chronic exposure to industrial noise on clinic blood pressure (BP) at rest have yielded inconsistent results. Theaim of this study was to evaluate the effect of occupational noise exposure on ambulatory blood pressure (ABP) in normotensive subjects. Methods We studied 476 normotensive workers, aged 20-50 years (systolic blood pressure (SBP)< 140, diastolic blood pressure (DBP) < 90), at a metallurgical factory; 238 were exposed to high levels of noise (> 85 dB), while 238 were not exposed (< 80 dB). Clinical evaluation included measurements ofcasual Up (by standard mercury sphygmomanometer, Korotkoff sound phase I and V) and heart rate (HR) (by pulse palpation), body height and weight. Allsubjects underwent a 24 h noninvasive ABP monitoring (by SpaceLabs 90207 recorder; SpaceLabs, Redmond, Washington, USA) twice within 14 days: one during a normal working day and one during a non-working day. Measurements were performed every 15 min. Computed analysis of individual recordings provided average SEP, DBP and HR values for 24 h, daytime working hours (0800-1700 h), daytime nonworking hours (1700-2300 h) and night-time (2300-0800 h). Results No significant difference in clinic SEP, DBP and HR was observed between exposed and non-exposed subjects. Results obtained by ABP monitoringshowed in the exposed workers: (a) a higher SEP (by a mean of 6 mmHg, P < 0.0001 versus controls) and DBP (by a mean of 3 mmHg, P< 0.0001) during thetime of exposure and the following 2 or 3 h, whereas no difference betweenthe two groups was found during the non-working day; (b) an increase in HR, which was present not only during the time of exposure to noise (+3.7 beats-per-minute (bpm), P< 0.0001 versus controls), but also during the nonworking hours (+2.8 bpm, P < 0.001) and during the daytime hours of the non-working day (+2.8 bpm, P < 0.003); (c) a significant increase in BP variability throughout the working day. Conclusions These findings suggest that in normotensive subjects below theage of 50 years, chronic exposure to occupational noise is associated witha transient increase in BP, which is not reflected in a sustained BP elevation. The possible role of repeated BP and HR fluctuations due to frequent and prolonged exposure to noise in accounting for the higher prevalence of hypertension reported in noise-exposed workers above age 50 years, requireslongitudinal studies to be clarified.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/03/20 alle ore 08:05:50