Patients with obstructive sleep apnea have the same early cardiovascular damage as diabetics, according to research presented at EUROECHO and other Imaging Modalities 2012. The study1 was presented by Dr Raluca Mincu from Bucharest, Romania.
EUROECHO and other Imaging Modalities 2012 is the annual meeting of the European Association of Cardiovascular Imaging (EACVI)2, a registered branch of the European Society of Cardiology (ESC)3. It takes place 5-8 December in Athens, Greece, at the Megaron Athens International Conference Centre.
Obstructive sleep apnea (OSA) is a common sleep disorder that has been associated with cardiovascular disease. OSA increases the risk of hypertension, arrhythmias, myocardial infarction, stroke, sudden cardiac death and heart failure.
Dr Mincu said: "There are not enough studies in the medical literature on early cardiovascular dysfunction in patients with OSA, when active steps can be taken to prevent progression to heart failure."
She added: "Because OSA leads to so many cardiovascular disorders, we compared early cardiovascular dysfunction in OSA patients and patients with diabetes mellitus, which is a typical risk factor for cardiovascular disease."
The study assessed endothelial and arterial function in 20 patients with moderate to severe OSA (and no diabetes), 20 patients with treated type 2 diabetes mellitus (matched for age, sex and cardiovascular risk factors), and 20 healthy controls (age and sex matched).
In all subjects, arterial function was assessed by intima-media thickness (IMT). Arterial stiffness was measured by young elastic modulus, beta stiffness index, arterial compliance, first systolic peak and second systolic peak. Endothelial function was assessed by flow mediated dilatation (FMD).
Dr Mincu said: "Patients with moderate to severe OSA had endothelial dysfunction and higher arterial stiffness than controls, and their results were similar to patients with diabetes mellitus. This suggests that OSA is associated with a high risk for cardiovascular disease."
She added: "Patients in the OSA and diabetes groups had a higher intima-media thickness, which shows that their arteries are remodelled in a pathological way."
All five parameters of arterial stiffness were significantly higher in the OSA and diabetes mellitus groups compared to controls. FMD was lower in these groups, meaning they had poorer endothelial function than controls.
Dr Mincu said: "Patients should realise that behind snoring there can be a serious cardiac pathology and they should get referred to a sleep specialist. If they are diagnosed with obstructive sleep apnea, they are at increased risk of cardiovascular disease and need to adopt a heart healthy lifestyle to reduce that risk."
She added: "Although OSA treatment with continuous positive airway pressure (CPAP) is inconvenient – it requires sleeping with a mask – patients should use it because it can reverse the parameters measured in our study."
Dr Mincu concluded: "Our study is a signal for cardiologists, pneumologists and general practitioners to work together to actively diagnose obstructive sleep apnea, administer the appropriate treatment (CPAP) and assess arterial function. This will help avoid progression of early cardiovascular dysfunction through to heart failure, the final stage of heart disease."
Notes to editor1 Obstructive sleep apnea determines endothelial dysfunction and increased arterial stiffness, similarly with diabetes mellitus (abstract 50318)
3 About the European Society of Cardiology (ESC)
The European Society of Cardiology (ESC) represents more than 75,000 cardiology professionals across Europe and the Mediterranean. Its mission is to reduce the burden of cardiovascular disease in Europe.Information for journalists attending EUROECHO and other Imaging Modalities 2012
Registration is possible onsite, with a valid press card, assignment letter or three bylined articles and signed Embargo form.
A press working area will be available on the exhibition lower level (Level -1). Follow the Speakers Service Centre/Press Working Area signage. There will be no press conference, but a press kit will be available and a press coordinator onsite will assist the media with any EUROECHO and other Imaging Modalities 2012 spokespersons enquiries.
Authors:ESC Press Office
ESC Press Office | EurekAlert!
Further reports about: > Association > CPAP > Cardiology > EACVI > ESC > Modalities > arterial stiffness > cardiovascular disease > cardiovascular dysfunction > cardiovascular risk factor > endothelial dysfunction > heart failure > obstructive sleep apnea > risk factor > vascular disease > vascular dysfunction
Mass. General team generates therapeutic nitric oxide from air with an electric spark
07.07.2015 | Massachusetts General Hospital
UNC researchers find 2 biomarkers linked to severe heart disease
07.07.2015 | University of North Carolina Health Care
When a duck paddles across a pond or a supersonic plane flies through the sky, it leaves a wake in its path. Wakes occur whenever something is traveling...
Researchers explore ultrafast control of magnetism across interfaces: A new study discovers how the sudden excitation of lattice vibrations in a crystal can trigger a change of the magnetic properties of an atomically-thin layer that lies on its surface.
A research team, led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter at CFEL in Hamburg, the University of Oxford, and the...
Wind turbines could be installed under some of the biggest bridges on the road network to produce electricity. So it is confirmed by calculations carried out by a European researchers team, that have taken a viaduct in the Canary Islands as a reference. This concept could be applied in heavily built-up territories or natural areas with new constructions limitations.
The Juncal Viaduct, in Gran Canaria, has served as a reference for Spanish and British researchers to verify that the wind blowing between the pillars on this...
New technique combines electron microscopy and synchrotron X-rays to track chemical reactions under real operating conditions
A new technique pioneered at the U.S. Department of Energy's Brookhaven National Laboratory reveals atomic-scale changes during catalytic reactions in real...
Think of an object made of iron: An I-beam, a car frame, a nail. Now imagine that half of the iron in that object owes its existence to bacteria living two and a half billion years ago.
Think of an object made of iron: An I-beam, a car frame, a nail. Now imagine that half of the iron in that object owes its existence to bacteria living two and...
25.06.2015 | Event News
16.06.2015 | Event News
11.06.2015 | Event News
07.07.2015 | Physics and Astronomy
07.07.2015 | Earth Sciences
07.07.2015 | Physics and Astronomy