Is there a relationship between weather conditions and aortic dissection?
BACKGROUND
Bleeding and rupture of blood vessels has been correlated with weather conditions in the past. This is the first study in the world literature with the aim of investigating the relationship between atmospheric pressure and temperature with the presentation of aortic dissection.


METHODS
The dates of all emergency aortic dissection repairs from 1996-2002 in a regional cardiothoracic unit at Blackpool Victoria Hospital were obtained. Hourly temperature and pressure data from a regional weather station for this time period was supplied by the Meteorological Office. The mean and standard deviation of hourly temperature and pressure data for that month were compared to the mean and standard deviation of the data 24 and 48 hours prior to the aortic dissection.


RESULTS
26 patients were found to have been operated on during the time period studied. There was no statistically significant correlation between temperature or atmospheric pressure readings, and the incidence of aortic dissection, using a Bonferonni-corrected significance p-value of 0.005


CONCLUSIONS
This study is the first to examine the relationship between atmospheric pressure, temperature and dissecting thoracic aorta. No statistically significant relationship was demonstrable.
Repanos
Costa
C
ENT Department, Derriford Hospital, Plymouth, United Kingdom. costa@repanos.com
Chadha
Neil K
NK
D000784:Aortic Dissection / Q000453:epidemiology* / Q000601:surgery; D001014:Aortic Aneurysm / Q000453:epidemiology* / Q000601:surgery; D001274:Atmospheric Pressure; D012189:Retrospective Studies; D012621:Seasons; D013696:Temperature; D006113:United Kingdom / Q000453:epidemiology; D014887:Weather