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MRI findings reveal that treatment of sleep apnea reduces risk of dementia: JAMA

MD Editorial TeamWritten by MD Editorial Team Published On 2021-10-07T21:09:18+05:30  |  Updated On 7 Oct 2021 3:39 PM GMT
MRI findings reveal that treatment of sleep apnea reduces risk of dementia: JAMA

Brain MRI findings suggest treating people with obstructive sleep apnea could reduce their risk of dementia later in life in a new study by Dr Helena U. Zacharias and team. The study reported that a statistically significant association was found between increased obstructive sleep apnea (OSA) and increased brain White matter hyperintensities (WMH).This study is published in...

Brain MRI findings suggest treating people with obstructive sleep apnea could reduce their risk of dementia later in life in a  new study by Dr Helena U. Zacharias and team. The study reported that a statistically significant association was found between increased obstructive sleep apnea (OSA) and increased brain White matter hyperintensities (WMH).

This study is published in JAMA Network.

White matter hyperintensities (WMH) are associated with an increased risk of dementia, cognitive decline, stroke, death, abnormal gait, disturbed balance, and depression. One of the contributing factors to WMH burden is chronic obstructive sleep apnea (OSA), a disorder highly prevalent in the general population.

The objective of the study was to evaluate potential associations between OSA and WMH burden.

The study was an analyses conducted in 529 study participants of the Study of Health in Pomerania–Trend baseline (SHIP-Trend-0) study with complete WMH, OSA, and important clinical data available. SHIP-Trend-0 is a general population–based, cross-sectional, observational study to facilitate the investigation of a large spectrum of common risk factors, subclinical disorders, and clinical diseases and their relationships among each other with patient recruitment from Western Pomerania, Germany, starting on September 1, 2008, with data collected until December 31, 2012. Data analysis was performed from February 1, 2019, to January 31, 2021. The primary outcome was WMH data automatically segmented from 1.5-T magnetic resonance images.

The results of the study were found to be

• A total of 529 study participants were included in the study (mean [SD] age, 52.15 [13.58] years; 282 female [53%]), a total of 209 (40%) or 102 (19%) individuals were diagnosed with OSA according to AHI or ODI criteria (mean [SD] AHI, 7.98 [12.55] events per hour; mean [SD] ODI, 3.75 [8.43] events per hour).

• Both AHI (β = 0.024; 95% CI, 0.011-0.037; P <.001) and ODI (β = 0.033; 95% CI, 0.014-0.051; P <. 001) were significantly associated with brain WMH volumes.

• These associations remained even in the presence of additional vascular, metabolic, and lifestyle WMH risk factors.

• Region-specific WMH analyses found the strongest associations between periventricular frontal WMH volumes and both AHI (β = 0.0275; 95% CI, 0.013-0.042, P < .001) and ODI (β = 0.0381; 95% CI, 0.016-0.060, P < .001) as well as periventricular dorsal WMH volumes and AHI (β = 0.0165; 95% CI, 0.004-0.029, P = .008).

Dr Zacharias, and team concluded that "This study found significant associations between OSA and brain WMHs, indicating a novel, potentially treatable WMH pathomechanism."

For further information: https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2784763

obstructive sleep apnea white matter hyperintensities JAMA Network 
Source : JAMA Network
MD Editorial Team
MD Editorial Team

    Medical Dialogues consists of a team of passionate medical/scientific writers, led by doctors and healthcare researchers. Our team efforts to bring you updated and timely news about the important happenings of the medical and healthcare sector. Our editorial team can be reached at editorial@medicaldialogues.in.

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