TITLE:
Effect of Reduction in Peak Expiratory Flow Rate on Blood Pressure of Sand Stone Mine Workers
AUTHORS:
Banna Ram Panwar, Anil Vyas, Suresh Kumar Singh
KEYWORDS:
PEFR, BP, SBP, DBP, RSPM
JOURNAL NAME:
Journal of Geoscience and Environment Protection,
Vol.4 No.4,
April
11,
2016
ABSTRACT: Peak Expiratory Flow Rate (PEFR) measures
the airflow through the bronchi and thus the degree of obstruction in the
airways. Exposure to high concentration of respirable suspended particulate
matter (RSPM) decreases the PEFR and the decrease depends upon the exposure
concentration of particles and exposure duration. The decrease in PEFR is found
to be responsible for increase in blood pressure (BP). Relationship between
increase in BP and reduction in PEFR is not exactly linear but it can be
considered as liner. It is noticed that if PEFR is reduced to about 50% to 60%
in that case sudden increase in BP is recorded and behaviour of BP rise has
complex pattern. It is also an established fact that if PEFR is reduced more
than 50%, this is treated as severe respiratory problem. There are many factors
(i.e. smoking habits, medical treatment, physiology, etc.) which may govern the
increase of BP in this condition. Estimated relationship is found as: ISBP =
0.213 + 0.263 IPEF, IDBP = 0.102 + 0.176 IPEF.