If you’re considering a CPAP machine to manage sleep apnea, be aware that it might not be beneficial for everyone. A recent comprehensive analysis reveals that while CPAP therapy can reduce heart risks in severe cases, it may actually increase cardiovascular dangers for some patients with milder symptoms.
Researchers reviewed data from over 3,500 individuals across multiple clinical trials and found that those with severe sleep apnea—characterized by significant drops in blood oxygen or sharp increases in heart rate—experience notable reductions in heart attack, stroke, and heart-related death risks when using CPAP.
However, for patients with less severe sleep apnea who do not experience daytime drowsiness, CPAP might raise the chance of serious heart problems by as much as 30%. Experts suggest this could be due to the machine’s air pressure causing lung strain or disrupting sleep, both of which may negatively impact heart health.
Sleep apnea causes airway blockages during sleep, often resulting in loud snoring and repeated interruptions in breathing. CPAP machines prevent these blockages by delivering steady airflow through a mask.
Although sleep apnea has long been linked to elevated heart disease risks, prior studies have been inconclusive on whether CPAP improves cardiovascular outcomes. This new pooled analysis sheds light on why the therapy benefits some but not all.
The lead investigator emphasized the need for tailored treatment, recommending CPAP primarily for those exhibiting high-risk indicators like severe oxygen drops or heart rate spikes during sleep.
While these findings refine how doctors might approach sleep apnea care, further research is necessary to fully understand the risks CPAP may pose for lower-risk patients.
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