CPAP may help prevent
A CPAP machine may lower
the risk of death due to heart disease / failure. The CPAP (Constant
Positive Air Pressure) machine has been used to treat obstructive sleep
apnea (OSA), and now a new study indicates it may help reduce the
sympathetic nervous system activity in the morning. There are
various manufacturers including ,
GoodKnight and others.
The study was carried out
by physicians and researchers in Toronto Canada (Kengo Usui, MD, PHD, T.
Douglas Bradley, MD, FRCPC, Jonas Spaak, MD, PHD, Clodagh M. Ryan, MB,
BCH, Toshihiko Kubo, MD, PHD, Yasuyuki Kaneko, MD, John S. Floras, MD,
DPHIL, FRCPC, FACC). Their findings published in the Journal of the
American College of Cardiology show promise for prolonging the life
patients with sleep apnea and heart failure.
There are two forms of
sleep apnea; obstructive and central. Obstructive sleep apnea can be
treated with the CPAP device. Central apnea may be treated with the
CPAP and medication.
Obstructive sleep apnea
is a condition were the throat reduces in size, restricting air flow.
Some of the causes may include a small passage way, tissue obstructing
the passage and / or a relaxation of the throat muscles. This may occur
dozens of times an hour, while the sleeper is unconscious. The subject
is completely oblivious to this.
The CPAP machine may also
allow for a better nights sleep. Those that wear the device say that
their cognitive abilities are better. Other studies have shown that
blood pressure may rise and fall during apnea events, possibly
increasing the risk of death.
Inhibition of Awake
Sympathetic Nerve Activity of Heart Failure Patients With Obstructive
Sleep Apnea by Nocturnal Continuous Positive Airway Pressure (CPAP).
The study concluded “Treatment of coexisting OSA by CPAP in HF patients
lowers daytime MSNA, systolic BP, and HR. Inhibition of increased
central sympathetic vasoconstrictor outflow is one mechanism by which
nocturnal CPAP reduces awake BP in HF patients with moderate to severe
By Dan Wilson
Best Syndication Staff Writer
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