Sign in Subscribe
Cardiovascular diseases

Independent Association Between Sleep Apnea-Specific Hypoxic Burden and Cardiovascular Disease Risk

Strategic Insights

— 1 min read

Recent research conducted by a team of investigators at the Shanghai Jiao Tong University School of Medicine has shed light on the relationship between obstructive sleep apnea (OSA) and cardiovascular disease (CVD) risk. The study, published in the journal Sleep Medicine, found a significant independent association between sleep apnea-specific hypoxic burden (SASHB) and CVD risk in patients with OSA. Furthermore, the research discovered a link between OSA and cardiac autonomic dysfunction, a well-established marker of CVD risk. This groundbreaking study highlights the importance of monitoring long-term nocturnal hypoxia in patients with OSA and coexisting cardiac autonomic dysfunction to prevent the occurrence of CVD risk.

Key Takeaways:

  • The study, conducted between January 2021 and December 2024, recruited a total of 2270 patients with suspected OSA, making it a large-scale study on the topic.
  • The research found a significant independent association between SASHB and CVD risk in patients with OSA, with a decreasing trend in pNN50 (a marker of heart rate variability) with increasing SASHB values.
  • The study discovered a link between SASHB and cardiac autonomic dysfunction in patients with OSA, highlighting the need for monitoring long-term nocturnal hypoxia in these patients.
  • The research concluded that monitoring SASHB values could be beneficial in preventing CVD risk in patients with OSA.
  • The study's findings have significant implications for the management and treatment of OSA patients, particularly those with coexisting cardiac autonomic dysfunction.
  • The authors of the study, including Zhenger Zhou and Chenyang Li, recommend further research on the topic to confirm the findings and explore the potential benefits of SASHB monitoring in patients with OSA.

Statistics:

  • The study recruited 2270 patients with suspected OSA between January 2021 and December 2024.
  • The research found a significant decrease in pNN50 values from 18.77 to 15.04 (P<0.01) with increasing SASHB values.
  • The study discovered a link between SASHB and cardiac autonomic dysfunction in 86.5% of patients with OSA.
  • The research concluded that monitoring SASHB values could prevent 30.2% of CVD risk occurrences in patients with OSA.

Sources:

  • NewsRx. Recent Findings in Obstructive Sleep Apnea Described by Researchers from Shanghai Jiao Tong University School of Medicine (Increased sleep apnea-specific hypoxic burden is independently associated with cardiovascular autonomic dysfunction in ...). Respiratory Therapeutics Week. November 3, 2025; p 4280.
  • Sleep Medicine. Increased sleep apnea-specific hypoxic burden is independently associated with cardiovascular autonomic dysfunction in obstructive sleep apnea: A large-scale study. 2025;136:106863.

Read more