| Titre : | Association of short-term ambient air pollution concentrations and ventricular arrhythmias. (2005) |
| Auteurs : | David-Q RICH ; CATALANO (Paul-J) : USA. Department of Biostatistics. Harvard School of Public Health. Boston. MA. ; Douglas-W DOCKERY ; LINK (Mark) : USA. Tufts-New England Medical Center. Tufts University. Boston. MA. ; Heike LUTTMANN-GIBSON ; MITTLEMAN (Murray-A) : USA. Beth Israel Deaconess Medical Center and Harvard Medical School. Boston. MA. ; Joel SCHWARTZ ; Frank-E SPEIZER ; Brigham and Women's Hospital and Harvard Medical School. Channing Laboratory. Boston. MA. USA |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 161, n° 12, 2005) |
| Pagination : | 1123-1132 |
| Langues: | Anglais |
| Mots-clés : | Trouble rythme cardiaque ; Association ; Court terme ; Pollution atmosphérique ; Santé environnementale ; Epidémiologie ; Homme ; Complication ; Appareil circulatoire [pathologie] ; Cardiopathie |
| Résumé : | [BDSP. Notice produite par INIST-CNRS ER0xqsbD. Diffusion soumise à autorisation]. The authors evaluated the association between ventricular arrhythmias detected by implantable cardioverter defibrillators and ambient air pollution concentrations in the hours immediately before the arrhythmia. Patients given implantable cardioverter defibrillators at the New England Medical Center in Boston, Massachusetts, between mid-1995 and 1999 who lived within 40 km of a central monitoring site (n=203) were followed until July 2002. The authors used a case-crossover design to study the association between ambient air pollution and up to 798 confirmed ventricular arrhythmias among 84 subjects. The authors found that interquartile range increases in 24-hour moving average particulate matter less than 2.5 mum in aerodynamic diameter and ozone were associated with 19% and 21% increased risks of ventricular arrhythmia, respectively. For each, there was evidence of a linear exposure response, and the associations appeared independent. These associations were stronger than associations with mean concentrations on the same calendar day and previous calendar days. The authors did not find associations with pollutant concentrations less than 24 hours before the arrhythmia. Cases with a prior ventricular arrhythmia within 72 hours had greater risk associated with air pollutants than did cases without a recent arrhythmia. These results confirm previous findings and suggest that matching of pollution periods to arrhythmias is important in detecting such associations. |
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