Spontaneous Pneumothorax Clinical Trial
Official title:
Impact of Meteorological Conditions on the Onset of First Episod of Spontaneous Pneumothorax : a French Multicenter Case-crosserover Study About 945 Subjects in 14 Centers
The study aims to evaluate the association between spontaneous pneumothorax onset and weather parameters.
The aim of this study is to analyse the relation between onset of the PSP and exposure to
environmental factors such as atmospheric pressure.
A case-crossover epidemiological study will be conducted in 14 French hospitals. SP recorded
from 2009 to 2013 will be exhaustively included. Demographic and clinical characteristics
will be collected. For each incident case of SP, the period of occurrence of the event (case
period) will be compared to several other periods temporally distant from the case period
(control periods prior to and after the event). Exposure will be assessed using
meteorological stations localized in the vicinity of each patient's home. A potential
threshold effect and/or time lag effect between exposure and admission for SP will be
explored.
The results of this study will help to identify the meteorological factors associated with
the occurrence of SP, and to deepen our knowledge of the pathophysiological mechanisms of SP
especially the influence of meteorological factors on bleb rupture.
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