title: [Climatologic parameters and myocardial infarction].
abstract: 535 patients admitted to hospital with myocardium infarct which was confirmed in a determined period and within a 80 kilometers radius from a city of the East of France were compared to the meteorological parameters of the day when the infarct occurred and of the day preceding its occurrence. On one hand, climatic parameters were selected: atmospheric pressure, temperature of the air under shelter, relative humidity, wind speed and wind direction, hydrometeors and electrometeors; on the other hand, parameters of solar and planetary activity: daily flare index, AA index, Ap index or daily planetary index, phases of the moon. The analytic study concerning all acute vascular accidents (infarcts and cerebral accidents all together) enabled to us to notice a higher frequency of vascular accidents in various meteorological circumstances: atmospheric pressure lower than 990 mb, temperature lower than 12 degrees, wind of sector North to South-South West, hoar-frost with fog, rain, snow, first quarter of the moon, daily flare index lower than 530, magnetic activity lower than 6. A factorial analysis of correspondence enabled to us to understand the problem better and to determine "an infarct area" in which main meteorological factors appeared: low or decreasing atmospheric pressure, relative or increasing humidity, clear or increasing solar activity, steady magnetic activity; other factors could play an apparently less important role: low temperature, snow, decrease of wind speed, full moon, wind of sector East to North-East, South-South West. Consequently it appeared in that study that the occurrence of myocardium infarct corresponded to a climatic tendency corresponding to cold, bad or deteriorating weather.
mesh_terms: D001274:Atmospheric Pressure; D002543:Cerebral Hemorrhage / Q000453:epidemiology; D005602:France; D006801:Humans; D006813:Humidity; D002542:Intracranial Embolism and Thrombosis / Q000453:epidemiology; D008280:Magnetics; D008685:Meteorological Concepts; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology*; D013696:Temperature; D014887:Weather; D014919:Wind
vernacular_title: Paramètres climatologiques et infarctus myocardique.