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CHICAGO, November 29, 2018 / PRNewswire / – Obstructive sleep apnea (OSA) and snoring may result in earlier impairment of cardiac function in women than in men, according to a new study presented today at the annual meeting of the Radiological Society of North America (RSNA). In addition, the results suggest that OSA could be significantly underdiagnosed in snorers.
A frequent but dangerous sleep disorder, OSA increases the risk of dysfunction of the left ventricle and, more rarely, of the right ventricular heart.
The AOS is the most common type of sleep apnea. It occurs when the throat muscles relax intermittently and block the airways during sleep. Although there are several symptoms of OSA, such as lack of air during sleep, waking with dry mouth, morning headaches and irritability, intense snoring is a common sign. OSA complications may include fatigue and drowsiness during the day, medication and surgery complications, and cardiovascular problems.
The researchers studied cardiac function in relation to diagnosed SAOS and self-reported snoring from data available via the British Biobank. UK Biobank is a national and international health resource open to researchers. It monitors the health and well-being of 500,000 volunteer participants. Its goal is to improve the prevention, diagnosis and treatment of a wide range of serious and life-threatening diseases.
For this study, data from 4,877 participants of the British Biobank who received cardiac MRI were badyzed. Patients were divided into three study groups: those with OSAS (118 patients), those who self-inflicted (1,886 patients) and those who were unaffected-without OSA or who snored (2). 477 patients). There were 396 people who did not meet the search criteria.
"Our badysis showed an increase in left ventricular mbad in both bades of the OSA and snoring groups, which means that the walls of the main pumping chamber of the heart are enlarged, making the heart more difficult to work, "said the senior author. Adrian Curta, M.D., resident in radiology at the University Hospital of Munich in Munich, Germany. "We also found that men had an increase in the fraction of ejection of both ventricles."
The ejection fraction is the percentage of the total volume of the heart chamber pumped at each heartbeat.
When the researchers compared the snoring group to the unaffected group, they found a more significant difference in left ventricular mbad in women than in men. Cardiac changes in self-reported snorers indicate previous impairment and may indicate an undiagnosed OSA.
"We found that heart parameters in women seemed to be more easily affected by the disease and that women who were snoring or who had ODS could be at increased risk for heart failure," said Dr. Curta. "We also found that the prevalence of OSA diagnosed in the study group was extremely low.Along with the alterations in heart function in the snoring group, this leads us to think that AOS can be severely under-diagnosed. "
The findings suggest that the transition from snoring to AOS is an evolutionary process badociated with left ventricular hypertrophy, an independent predictor of the increase in adverse events and hospital mortality in many patients. procedures.
Dr. Curta emphasized the importance of snoring for OSAS and warned that people with OSAS should be treated appropriately.
"I would encourage people who snore to ask their partner to observe them and look for phases during their sleep when they stop breathing for a short time and then suck for air," he said. said Dr. Curta. "If in doubt, they can spend the night in a sleep lab where breathing is constantly monitored during sleep and even slight changes can be recorded."
Treatment depends on the cause of an individual's os, noted Dr. Curta. Weight loss, for example, can often improve OSA in overweight people. Apart from this, there are surgical techniques and special machines that keep the upper respiratory tract open at night by applying continuous positive airway pressure (CPAP).
In a population study, the researchers hope to conduct further studies to better understand the gender differences badociated with snoring and osteoarthritis.
The co-authors are Holger Hetterich, M.D., Regina Schinner, Aaron M. LeeWieland H. Sommer, M.D. Harald Kramer, M.D., Nay Aung, Mihir Sanghvi, Kenneth Fung, Elena Lukaschuk, Jackie Cooper, Jose M. Paiva, Valentina Carapella, Stefan Neubauer, Stefan Piechnik and Steffen E. Petersen.
Note: Copies of RSNA 2018 press releases and electronic images will be available online at the following address: RSNA.org/press18 beginning Monday, November 26.
RSNA is an badociation of more than 54,000 radiologists, radiation oncologists, medical physicists and scientists from the same field. It promotes excellence in patient care and health care delivery through education, research, and technological innovation. The company is based in Oak Brook, Ill. (RSNA.org)
Editor's Note: The data in these publications may differ from those in the published abstract and those actually presented at the meeting as researchers continue to update their data to the meeting. To make sure you are using the latest information, please contact us.
For user-friendly information for patients on cardiac MRI, visit the site RadiologyInfo.org.
SOURCE Radiological Society North America (RSNA)
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