Effects on blood pressure after treatment of obstructive sleep apnoea with a mandibular advancement appliance - a three-year follow-up
2009 (English)In: Journal of Oral Rehabilitation, ISSN 0305-182X, E-ISSN 1365-2842, Vol. 36, no 10, 719-725 p.Article in journal (Refereed) Published
P>Obstructive sleep apnoea (OSA) is a highly prevalent sleep disorder; it affects 4% of males and 2% of females. Hypertension has been shown to occur in 28-57% of OSA patients. There is a steady increase in evidence linking OSA to long-term cardiovascular morbidity including hypertension. The purpose of this study was to investigate whether mandibular advancement oral appliance (OA) treatment of OSA affects the patient's blood pressure (BP) in a 3-month and a 3-year perspective. Twenty-nine consecutive patients, with verified OSA defined as apnoea index (AI) > 5 per hour and/or apnoea/hypopnoea index (AHI) >= 10 per hour, received an OA as treatment. BP was measured on three occasions; before treatment, after 3 months of treatment, and after 3 years of treatment. BP was measured with an electronic blood pressure monitor. The treatment effect of OA was measured after 3 months by repeated somnographic registration while the patient was wearing the OA. A treatment response was defined as AHI < 10; this was achieved in 25 of 29 patients (86%) at the 3-month evaluation. Significant reductions in blood pressure were attained between baseline and the 3-month evaluation (P < 0 center dot 001) and these changes remained at the 3-year follow-up in both systolic BP of -15 center dot 4 +/- 18 center dot 7 mm Hg and diastolic BP of -10 center dot 3 +/- 10 center dot 0 mm Hg. OA therapy reduced blood pressure in both a 3-month and a 3-year perspective in patients with OSA.
Place, publisher, year, edition, pages
2009. Vol. 36, no 10, 719-725 p.
clinical trial, hypertension, long-term effects, obstructive sleep apnoea, oral appliance
Medical and Health Sciences
IdentifiersURN: urn:nbn:se:uu:diva-128266DOI: 10.1111/j.1365-2842.2009.01987.xISI: 000269730600003OAI: oai:DiVA.org:uu-128266DiVA: diva2:331038