EVALUATION OF THE IMPACT OF EXPOSURE TO HEAT AND TO BY-PRODUCTS OF COMBUSTION ON THE HEALTH OF FIREFIGHTERS

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Tipo de produção
article
Data de publicação
2023
Scopus
Título da Revista
ISSN da Revista
Título do Volume
Editora
MEDITERRANEAN CLUB FOR BURNS AND FIRE DISASTERS
Autores
BOGGI, A. C.
AMARAL, J. B. Do
BACCHI, A. L. L.
NASCIMENTO, V. M.
SANTOS, J. M. B. Dos
GRIMALDI, G.
ARAúJO, K. Basseto de Oliveira
PAVãO, V.
PASSARETTI, D. A.
Citação
ANNALS OF BURNS AND FIRE DISASTERS, v.36, n.2, p.100-110, 2023
Projetos de Pesquisa
Unidades Organizacionais
Fascículo
Resumo
Firefighters are often exposed to high temperatures and by-products of combustion, which can affect their health. In this study, we assessed the impact of acute exposure of firefighters in fire simulators. Twenty male firefighters were exposed to fire simulators, and observed in four phases: pre-exposure (group 0, control) and after the end of the first (group 1), second (group 2), and fourth (group 3) weeks of training. Blood samples were collected and dosed to evaluate the response of the immune, inflammatory (C-reactive protein, IL6, and IL10), and endocrine systems (cortisone, total testosterone, free testosterone, SHBG, bioavailable testosterone, TSH, and free T4). In groups 0, 1, and 3, a thermographic evaluation was also carried out to study the temperature and body heat flow of the participants. Regarding the inflammatory process, an increase in C-reactive protein and a reduction in IL-10 were observed. With respect to hormonal markers, an increase in cortisol and reduced levels of free T4 and bioa-vailable testosterone were found after exposure, with recovery of testosterone levels in the final week of training. Thermoregulatory adaptation of the organism has been associated with changes in heat flow in the organism in people subjected to extreme temperatures, with emphasis on the performance of the lower limbs. Our findings de-monstrate an inflammatory response with hormonal changes after exposure to fire and an adaptive response of thermal balance, which could aid understanding of the physiology of the human body in extreme situations.
Palavras-chave
firefighter, firefighting, heat, hormones, inflammation, thermoregulation
URI
https://observatorio.fm.usp.br/handle/OPI/58629
Referências
  1. Horn GP, Stewart JW, Kesler RM, DeBlois JP, Et al., Firefighter and fire instructor’s physiological responses and safety in various training fire environments, Safety Science, 116, pp. 287-294, (2019)
  2. Hunter AL, Shah ASV, Langrish JP, Raftis JB, Et al., Fire simu-lation and cardiovascular health in firefighters, Circulation, 135, 14, pp. 1284-1295, (2017)
  3. Watkins ER, Hayes M, Watt P, Richardson AJ, The acute effect of training fire exercises on fire service instructors, J Occup Environ Hyg, 16, 1, pp. 27-40, (2019)
  4. Smith DL, Petruzzello SJ, Chludzinski MA, Reed JJ, Et al., Se-lected hormonal and immunological responses to strenuous live-fire firefighting drills, Ergonomics, 48, 1, pp. 55-65, (2005)
  5. Burgess JL, Duncan MD, Hu C, Littau SR, Et al., Acute cardiovascular effects of firefighting and active cooling during reha-bilitation, J Occup Environ Med, 54, 11, pp. 1413-1420, (2012)
  6. Watt PW, Willmott AG, Maxwell NS, Smeeton NJ, Et al., Physiological and psychological responses in fire instructors to heat exposures, J Therm Biol, 58, pp. 106-114, (2016)
  7. Horn GP, Kerber S, Fent KW, Fernhall B, Et al., IFSI Research Center releases interim report on cardiovascular and chemical exposure risks in modern firefighting, (2016)
  8. Horn GP, Kesler RM, Kerber S, Fent KW, Et al., Thermal response to firefighting activities in residential structure fires: impact of job assignment and suppression tactic, Ergonomics, 61, 3, pp. 404-419, (2018)
  9. Rehman R, Amjad S, Tariq H, Zahid N, Et al., Oxidative stress and male infertility: a cross sectional study, J Pak Med Assoc, 70, 3, pp. 461-466, (2020)
  10. Galil KA, Setchell BP, Effects of local heating of the testis on testicular blood flow and testosterone secretion in the rat, Int J Androl, 11, 1, pp. 73-85, (1988)
  11. LeMasters GK, Genaidy AM, Succop P, Deddens J, Et al., Cancer risk among firefighters: a review and meta-analysis of 32 studies, J Occup Environ Med, 48, 11, pp. 1189-1202, (2006)
  12. NFPA: Standard on live fire training evolutions (NFPA 1403), (2018)
  13. Standard on protective ensembles for structural fire fighting and proximity fire fighting, (1971)
  14. EN 443: Helmets for fire fighting in buildings and other struc-tures, (2008)
  15. Standard on open-circuit self-contained breathing apparatus (SCBA) for emergency services, (1981)
  16. Respiratory protective devices-self-contained open-circuit compressed air breathing apparatus with full face mask-requirements, (2006)
  17. Follenius M, Brandenberger G, Oyono S, Candas V, Cortisol as a sensitive index of heat-intolerance, Physiol Behav, 29, 3, pp. 509-513, (1982)
  18. Burgess JL, Nanson CJ, Hysong TA, Gerkin R, Et al., Rapid de-cline in sputum IL-10 concentration following occupational smoke exposure, Inhal Toxicol, 14, 2, pp. 133-140, (2002)
  19. Roquilly A, Broquet A, Jacqueline C, Masson D, Et al., Hydro-cortisone prevents immunosuppression by interleukin-10+ nat-ural killer cells after trauma-hemorrhage, Crit Care Med, 42, 12, pp. e752-e761, (2014)
  20. Kim B, Park K, Rhee K, Heat stress response of male germ cells, Cell Mol Life Sci, 70, 15, pp. 2623-2636, (2013)
  21. Korn GP, Alvarenga EHL, Dall'Oglio GP, Azevedo RR, Et al., The effects in the upper airway of heat and exposure to combustion byproducts of burning materials on larynx of firefighters, J Voice, (2020)
  22. Cordeiro TG, Amaral JBd, Pavao V, Cardoso RG, Et al., Fire sim-ulator exposure alters the innate epithelial response and inflammatory status in the airways of firefighters, Rhinology, 59, 3, pp. 267-276, (2021)
  23. Qi X, Chan WL, Read RJ, Zhou A, Et al., Temperature-responsive release of thyroxine and its environmental adaptation in Australians, Proceedings Biological Sciences, 281, 1779, (2014)
  24. Gordon CJ, Becker P, Padnos B, Comparison of heat and cold stress to assess thermoregulatory dysfunction in hypothyroid rats, Am J Physiol Regul Integr Comp Physiol, 279, 6, pp. R2066-R2071, (2000)
  25. Tarini VA, Vilas L, Zanuto R, Silva HC, Et al., Calor, exercício físico e hipertermia: epidemiologia, etiopatogenia, complicações, fatores de risco, intervenções e prevenção, Revista Neurociên-cias, 14, 3, pp. 144-152, (2006)
  26. Bourlai T, Pryor RR, Suyama J, Reis SE, Et al., Use of thermal imagery for estimation of core body temperature during precool-ing, exertion, and recovery in wildland firefighter protective clothing, Prehosp Emerg Care, 16, 3, pp. 390-399, (2012)
  27. Abreu MM, Smith RL, Ruskin K, Silva AFD, Et al., Previously unseen brain-eyelid thermal tunnel reveals biological waveguide and transorbital thermophysical pathway to the brain, Authorea, October, 9, pp. 2-39, (2020)
  28. Zolet C, Ulbricht L, Romaneli EFR, Neves EB, Thermal asym-metries and mean foot temperature, Annual International Conference of the IEEE Engineering in Medicine and Biology Society IEEE Engineering in Medicine and Biology Society Annual International Conference, 2019, pp. 2821-2824, (2019)
  29. Childs C, Zu MM, Wai AP, Tsai YT, Et al., Infra-red thermal im-aging of the inner canthus: correlates with the temperature of the injured human brain, Engineering, 4, 10, (2012)
  30. Walloe L, Arterio-venous anastomoses in the human skin and their role in temperature control, Temperature (Austin, Tex), 3, 1, pp. 92-103, (2016)
  31. Taylor NA, Machado-Moreira CA, van den Heuvel AM, Cald-well JN, Hands and feet: physiological insulators, radiators and evaporators, Eur J Appl Physiol, 114, 10, pp. 2037-2060, (2014)
  32. Livingstone SD, Nolan RW, Keefe AA, Heat loss caused by cooling the feet, Aviat Space Environ Med, 66, 3, pp. 232-237, (1995)
  33. Hall JE, Guyton and Hall Textbook of Medical Physiology, (2015)
  34. Cheung SS, Petersen SR, McLellan TM, Physiological strain and countermeasures with firefighting, Scand J Med Sci Sports, 20, pp. 103-116, (2010)

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