7.1 THE DETRIMENTAL EFFECTS OF LIVE FIREFIGHTING ON ARTERIAL FUNCTION IN FIREFIGHTERS

Alexander Rosenberg; Kanokwan Bunsawat; Tommy Wee; Tracy Baynard; Gavin Horn; Denise Smith; Bo Fernhall

doi:10.1016/j.artres.2016.10.047

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Volume 16, Issue C, December 2016, Pages 62 - 62

7.1 THE DETRIMENTAL EFFECTS OF LIVE FIREFIGHTING ON ARTERIAL FUNCTION IN FIREFIGHTERS

Authors

Alexander Rosenberg¹, Kanokwan Bunsawat¹, Tommy Wee¹, Tracy Baynard¹, Gavin Horn², Denise Smith³, Bo Fernhall¹

¹University of Illinois at Chicago, USA

²Illinois Fire Service Institute, University of Illinois at Urbana-Champaign, USA

³Skidmore College, Saratoga Springs, USA

Available Online 24 November 2016.

DOI: 10.1016/j.artres.2016.10.047 How to use a DOI?
Abstract: Background: Aging is associated with increased arterial stiffness and wave reflection, which is predictive of all-cause cardiovascular (CV) mortality (1–3). Firefighters have the highest cardiovascular mortality of any occupational group (4). High levels of heat stress, physical exertion, and elevated arterial stiffness (5) during/following firefighting provide a susceptible milieu for CV events.

Purpose: To describe the differential effects of age following live firefighting on cardiac, arterial function and wave reflection.

Methods: Firefighters aged 18–37yrs (n=18, YA) or 38–55yrs (n=17, MA) participated in a staged 12-minute live firefighting scenario. Blood pressures (BP), pulse wave analysis, pulse wave velocity (PWV) and hemodynamic measurements were obtained at rest, immediate and 30 minutes post-firefighting using an automated ambulatory blood pressure monitor (Mobil-O-Graph, I.E.M, Germany).

Results: YA increased heart rate and PWV more than MA in response to live firefighting (p<0.01). YA also decreased systemic arterial compliance (p<0.01) immediately post-firefighting more compared to MA, which returned to baseline values at 30-minutes. MA had higher PWV, total vascular resistance, and diastolic BP than YA (p<0.01). Systolic BP, pulse pressure, and reflective magnitude increased immediately post-firefighting for YA (p<0.01) but not in MA (p>0.05).

Conclusions: Young and MA firefighters exhibit differential cardiovascular responses to live firefighting. Although MA had higher PWV, diastolic BP and higher peripheral resistance they exhibited attenuated changes following live firefighting. Thus, arterial and hemodynamic parameters in younger firefighters appeared to change in a direction associated with increased risk to a greater degree than observed in older firefighters.
Open Access: This is an open access article distributed under the CC BY-NC license.

References

1.GF Mitchell, SJ Hwang, RS Vasan, MG Larson, MJ Pencina, NM Hamburg, et al., Arterial stiffness and cardiovascular events: the Framingham Heart Study, Circulation, Vol. 121, No. 4, 2010, pp. 505-11.

2.KL Wang, HM Cheng, SH Sung, SY Chuang, CH Li, HA Spurgeon, et al., Wave reflection and arterial stiffness in the prediction of 15-year all-cause and cardiovascular mortalities: a community-based study, Hypertension, Vol. 55, No. 3, 2010, pp. 799-805.

3.S Laurent, S Katsahian, C Fassot, AI Tropeano, I Gautier, B Laloux, et al., Aortic stiffness is an independent predictor of fatal stroke in essential hypertension, Stroke a journal of cerebral circulation, Vol. 34, No. 5, 2003, pp. 1203-6.

4.SN Kales, ES Soteriades, SG Christoudias, and DC Christiani, Firefighters and on-duty deaths from coronary heart disease: a case control study, Environ Health, Vol. 2, No. 1, 2003, pp. 14.

5.CA Fahs, H Yan, S Ranadive, LM Rossow, S Agiovlasitis, G Echols, et al., Acute effects of firefighting on arterial stiffness and blood flow, Vasc Med, Vol. 16, No. 2, 2011, pp. 113-8.

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Journal: Artery Research
Volume-Issue: 16 - C
Pages: 62 - 62
Publication Date: 2016/11/24
ISSN (Online): 1876-4401
ISSN (Print): 1872-9312
DOI: 10.1016/j.artres.2016.10.047 How to use a DOI?
Open Access: This is an open access article distributed under the CC BY-NC license.

Cite this article

ris enw bib

TY  - JOUR
AU  - Alexander Rosenberg
AU  - Kanokwan Bunsawat
AU  - Tommy Wee
AU  - Tracy Baynard
AU  - Gavin Horn
AU  - Denise Smith
AU  - Bo Fernhall
PY  - 2016
DA  - 2016/11/24
TI  - 7.1 THE DETRIMENTAL EFFECTS OF LIVE FIREFIGHTING ON ARTERIAL FUNCTION IN FIREFIGHTERS
JO  - Artery Research
SP  - 62
EP  - 62
VL  - 16
IS  - C
SN  - 1876-4401
UR  - https://doi.org/10.1016/j.artres.2016.10.047
DO  - 10.1016/j.artres.2016.10.047
ID  - Rosenberg2016
ER  -

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