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Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
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Heart failure (HF) manifests primarily as dyspnea, fatigue, and fluid retention, resulting in peripheral and pulmonary edema. Symptoms may vary depending on which ventricle is more affected, left or right.Left-Sided Heart FailureAlso known as left ventricular failure, this condition results from the left ventricle's inability to fill or eject sufficient blood into the systemic circulation. It leads to pulmonary congestion, which occurs when the left ventricle fails to eject blood effectively...
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Heart failure and sleep-disordered breathing.

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Obstructive sleep apnoea (OSA) treatment improves heart failure outcomes, but adaptive servoventilation for central sleep apnoea (CSA) in heart failure patients shows increased cardiovascular mortality risk.

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Area of Science:

  • Cardiology
  • Pulmonology
  • Sleep Medicine

Background:

  • Sleep-disordered breathing (SDB), encompassing obstructive sleep apnoea (OSA) and central sleep apnoea (CSA), is common in heart failure (HF) patients.
  • Understanding the complex interplay between SDB and HF is crucial for effective patient management.

Purpose of the Study:

  • To review the bidirectional relationship between SDB and heart failure.
  • To explore recent therapeutic advancements for SDB in HF.

Main Methods:

  • Literature review of studies on SDB and heart failure.
  • Analysis of clinical trial data on SDB therapies in HF patients.

Main Results:

  • Continuous positive airway pressure (CPAP) effectively treats OSA and improves cardiovascular outcomes in HF patients.
  • Recent trials indicate adaptive servoventilation may worsen cardiovascular outcomes in symptomatic HF patients with CSA.

Conclusions:

  • OSA treatment with CPAP is beneficial for heart failure patients.
  • Adaptive servoventilation is not recommended for CSA in heart failure due to increased cardiovascular mortality risk.