@article {Souza UzelotoPA1886, author = {Juliana Souza Uzeloto and Dionei Ramos and Ana Paula Coelho Figueira Freire and Bruna Soplador de Alencar Silva and Marceli Rocha Leite and Renata Marques David and Fabiano Francisco de Lima and Iara Buriola Trevisan and Gabriel Faustino Santa Br{\'\i}gida and Giovanna Altero Arevalo and Guilherme Yassuyuki Tacao and Ercy Mara Cipulo Ramos}, title = {Correlation between exposure to secondhand smoke load and hemodynamic parameters, lung function and autonomic nervous system}, volume = {46}, number = {suppl 59}, elocation-id = {PA1886}, year = {2015}, doi = {10.1183/13993003.congress-2015.PA1886}, publisher = {European Respiratory Society}, abstract = {Introduction: It is known that the damage caused by smoking can be extended to passive smokers; however, there are still gaps from passive exposure to cigarette smoke. Objective: To verify the correlation betweenfrequency and duration of exposure of passive smoking and hemodynamic parameters, lung function and autonomic nervous system.Methods: 38 passive smokers, exposed daily to cigarette smoke, were evaluated. An initial assessment and evaluation of lung function were performed. Next, to analyze the autonomic nervous system, heart rate variability data were collected using a heart rate monitor at rest for 20 minutes. Hemodynamic parameters were measured. We questioned the frequency of exposure (exposure times daily) and the exposure time (in years).Results: There was a significant correlation (p\<0.05) between the frequency of exposure and diastolic blood pressure (r=0.3526), oxygen saturation (r=-0.3624) and FEF 25-75\% (r=-0.3734). In the analysis of the autonomic nervous system there was a global reduction in the autonomic activity according to the exposure time, characterized by a negative correlation in the SDNN (r=-0.4578) and SD2 (r=-0.4716) indexes and in the sympathetic activity represented by LFms2 (r=-0.4767).A reduction in vagal activity (RMSSD (r=-0.4449), HFms2(r=-0.4932) HFnu (r=-0.5078) and SD1 (r=-0.4449)), increased sympathetic activity LFnu (r=0.4231) as well as a reduction in autonomic balance LF/HF (r=0.4979) was also observed, according to the frequency of exposure.Conclusion: Passive smokers presented a correlation between passive exposure load and damage to the hemodynamic parameters, lung function and autonomic nervous system.}, issn = {0903-1936}, URL = {https://erj.ersjournals.com/content/46/suppl_59/PA1886}, eprint = {https://erj.ersjournals.com/content}, journal = {European Respiratory Journal} }