Published online before print
April 26, 2006, 10.1183/09031936.06.00107805
Eur Respir J 2006; 28:596-602
Copyright ©ERS Journals Ltd 2006
Increased incidence of coronary artery disease in sleep apnoea: a long-term follow-up
Y. Peker1,2,
J. Carlson1 and
J. Hedner1
1 Sleep Laboratory, Dept of Pulmonary Medicine, Sahlgrenska University Hospital, Gothenburg, and 2 Sleep Medicine Unit, Dept of Neurorehabilitation, Skaraborg Hospital, Skoevde, Sweden.
CORRESPONDENCE: Y. Peker, Sleep Medicine Unit, Dept of Neurorehabilitation, Skaraborg Hospital, SE-54185 Skoevde, Sweden. Fax: 46 500431897. E-mail: yuksel.peker{at}lungall.gu.se
Keywords: Cardiovascular, coronary artery disease, intervention, sleep apnoea
Received: September 13, 2005
Accepted April 13, 2006
An increased incidence of cardiovascular disease has previously been reported in middle-aged males during a follow-up period of 7 yrs. The aim of the present study was to address the incidence of coronary artery disease (CAD) in a larger sample without any heart disease at baseline.
The population comprised 308 snorers (245 males and 63 females) with a mean±SD age of 49.0±9.9 yrs in 1991. Data were collected via the Swedish Hospital Discharge Register, National Cause of Death Registry, clinical charts and questionnaires.
Over 7 yrs, CAD was observed in 17 (16.2%) of 105 patients with obstructive sleep apnoea (OSA; overnight (6 h) oxygen desaturations 30 events) compared with 11 (5.4%) of 203 snorers without OSA. OSA diagnosis at baseline was associated with an increased risk of development of CAD in a multivariate model. In the OSA group, CAD was confirmed in 16 (24.6%) of 65 incompletely treated patients compared with one (3.9%) of 26 efficiently treated subjects. Efficient treatment of OSA reduced this risk.
It is concluded that middle-aged sleep apnoeics are at high risk of developing coronary artery disease if they are not treated efficiently, which should be considered in cardiovascular disease prevention models.
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Copyright © 2006 by the European Respiratory Society.
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