How to recognize the repeating pattern, what it may signal, how doctors evaluate it, and when a caregiver should act immediately
| CHEYNE-STOKES BREATHING AT A GLANCE | |
| What it looks like | Breaths gradually become deeper and often faster, then become shallower, followed by a brief pause or very low airflow. The cycle repeats. |
| Medical category | A form of periodic breathing commonly associated with central sleep apnea. |
| Common associations | Heart failure, stroke or other neurologic disease, high altitude, kidney failure, and some sedating or breathing-suppressing medicines. |
| Often noticed by | A bed partner, caregiver, nurse, or sleep-laboratory team rather than the person experiencing it. |
| How it is confirmed | Clinical assessment and usually overnight sleep testing, with evaluation of heart, neurologic, medication, and oxygen-related causes. |
| Treatment principle | Treat the underlying cause and choose sleep-breathing therapy based on the person’s diagnosis and heart function. |
| Emergency threshold | Call 911 for severe breathing difficulty, blue or gray color, inability to wake, chest pain, stroke signs, or suspected overdose. |
| Quick answer
Cheyne-Stokes breathing is a repeating rise-and-fall pattern of breathing separated by central pauses. It is not ordinary snoring and is not a diagnosis by itself. In a sleeping adult, it often points to central sleep apnea and may be linked to heart failure, neurologic illness, high altitude, kidney disease, or medicines that suppress breathing. A new pattern needs medical evaluation, and severe symptoms require emergency care. |
Cheyne-Stokes breathing follows a recognizable cycle rather than random irregular breaths. Breathing gradually grows deeper, reaches a peak, then fades until airflow briefly stops or becomes extremely shallow. The sequence may repeat throughout sleep, and the person may not remember waking even when oxygen levels and sleep quality are disrupted.
The pattern can be alarming to watch, but the meaning depends on the setting. It may occur during sleep in someone with heart failure or after a stroke, at high altitude, during serious illness, or near the end of life. The breathing pattern alone cannot tell a caregiver exactly what the cause is or how soon a person’s condition may change.
What the Breathing Cycle Looks Like
| Phase | What you may observe | What is happening | Approximate impression |
| 1. Crescendo | Breaths become progressively deeper and sometimes faster. | Ventilation increases as the body’s breathing-control system responds to carbon dioxide and oxygen changes. | Quiet breaths build toward larger breaths. |
| 2. Peak | Breathing is at its deepest or most forceful. | Carbon dioxide may fall below the person’s breathing threshold. | The chest movement is most noticeable. |
| 3. Decrescendo | Breaths become smaller and slower. | Respiratory drive decreases. | The cycle appears to fade away. |
| 4. Pause | Airflow stops briefly or becomes nearly absent. | A central apnea or hypopnea occurs without the usual airway-blockage effort. | The chest may look still before breathing restarts. |
The HealthCentral reference article provides a useful overview of the repeating crescendo, decrescendo, and pause pattern, along with common links to heart failure and neurologic disease. Read the HealthCentral overview of this breathing pattern. A description or phone recording may help a clinician understand what was observed, but a video cannot replace a medical examination or sleep study.
Cheyne-Stokes Breathing Versus Other Patterns
| Pattern | Breathing effort | Typical sound or appearance | Common setting | Key difference |
| Cheyne-Stokes | Effort rises and falls with the breath size, then pauses centrally. | Smooth waxing and waning cycle. | Heart failure, central sleep apnea, stroke, altitude, serious illness. | Repeated gradual build and fade. |
| Obstructive sleep apnea | Chest and abdomen may keep trying to breathe against a blocked airway. | Snoring, choking, gasping, or struggling. | Upper-airway collapse during sleep. | Effort continues while airflow is blocked. |
| Kussmaul breathing | Continuous deep, labored breathing without the classic pause cycle. | Large, rapid breaths. | Severe metabolic acidosis, including diabetic ketoacidosis. | No waxing-and-waning rhythm. |
| Biot or ataxic breathing | Irregular depth and timing. | Unpredictable clusters and pauses. | Severe neurologic or brainstem injury. | No smooth crescendo-decrescendo sequence. |
| Agonal breathing | Ineffective gasps rather than normal breathing. | Infrequent gasping, snorting, or labored sounds. | Cardiac arrest or profound emergency. | Treat as not breathing normally and call 911. |
| Do not diagnose the pattern from snoring alone
Snoring is more typical of obstructive sleep apnea, while Cheyne-Stokes breathing is a central rhythm problem. A person can have both obstructive and central events, so formal testing matters. |
Why the Pattern Happens
Breathing is regulated partly by carbon dioxide levels. In a stable system, a small rise in carbon dioxide prompts a proportional increase in breathing. In Cheyne-Stokes breathing, the feedback loop becomes delayed or overly sensitive. The person breathes more, carbon dioxide drops too far, breathing pauses, carbon dioxide rises again, and the cycle restarts.
| Contributing factor | How it destabilizes breathing | Examples |
| Delayed circulation | Changes in blood gases take longer to reach the brain’s respiratory-control centers. | Reduced cardiac output in heart failure. |
| High ventilatory sensitivity | The brain responds strongly to small carbon dioxide changes. | Central sleep apnea, altitude-related periodic breathing. |
| Low carbon dioxide reserve | Only a small additional drop is needed to cross the apnea threshold. | Sleep, hyperventilation, some heart-failure states. |
| Brain or medication effects | Respiratory signaling is altered or suppressed. | Stroke, neurologic disease, opioids, sedatives. |
Common Causes and Clinical Settings
Heart Failure
Heart failure is one of the best-known settings for this breathing pattern. Reduced pumping efficiency can slow the circulation time between the lungs and the brain, while changes in lung pressure and respiratory sensitivity can make the control system unstable. The pattern may be more noticeable during lighter stages of sleep and can accompany repeated awakenings, nighttime breathlessness, or difficulty lying flat.
Stroke and Other Neurologic Conditions
A stroke can disrupt respiratory-control networks directly or indirectly. Cheyne-Stokes breathing can also be seen with other neurologic diseases, brain injury, or increased pressure affecting the brain. New irregular breathing after weakness, facial drooping, speech trouble, confusion, severe headache, or loss of coordination is an emergency.
High Altitude
At high altitude, lower oxygen levels stimulate faster breathing. Carbon dioxide may then fall below the threshold needed to maintain a steady rhythm during sleep, producing periodic breathing. Mild altitude-related periodic breathing may improve with acclimatization or descent, but severe headache, confusion, inability to walk normally, worsening shortness of breath, or cough with frothy sputum requires urgent descent and medical care.
Medicines, Substances, and Other Illnesses
Opioids and other drugs that suppress respiratory drive can produce central apneas or irregular breathing. Kidney failure, severe metabolic illness, and advanced systemic disease can also destabilize breathing. Never change a prescribed medicine abruptly without medical advice, but suspected overdose, extreme sleepiness, pinpoint pupils, slow breathing, or inability to wake requires 911 and naloxone when available.
| Setting | Clues that may accompany it | Who usually evaluates it | Priority |
| Heart failure | Leg swelling, weight gain, breathlessness, waking short of breath, trouble lying flat | Cardiology and sleep medicine | Prompt review, urgent if symptoms suddenly worsen |
| Stroke or brain disease | Weakness, speech change, confusion, swallowing trouble, severe headache | Emergency care, neurology, sleep medicine | Emergency for new neurologic signs |
| High altitude | Recent ascent, headache, poor sleep, dizziness, reduced exercise tolerance | Travel or emergency clinician | Descend urgently for severe altitude illness signs |
| Medication or overdose | Opioid or sedative use, unusual sleepiness, slow or shallow breathing | Emergency care and prescribing clinician | Emergency if difficult to wake or breathing is abnormal |
| Chronic kidney or systemic illness | Fluid shifts, fatigue, swelling, worsening general condition | Primary care and relevant specialist | Cause-specific evaluation |
Symptoms a Person or Bed Partner May Notice
- A repeating rise and fall in breath depth during sleep.
- Witnessed pauses that end when breathing gradually restarts.
- Frequent awakenings or feeling short of breath at night.
- Needing to sit up or use extra pillows to breathe comfortably.
- Morning headaches, poor concentration, or daytime sleepiness.
- Restless sleep without the loud snoring typical of many obstructive events.
- Worsening heart-failure symptoms, such as swelling or rapid weight gain.
Healthy sleep habits can support rest, but they cannot correct a central breathing-control disorder. For general sleep-routine guidance, see Capital Health Hopewell’s science-backed guide to increasing deep sleep. Anyone with witnessed breathing pauses, gasping, unexplained daytime sleepiness, or heart-failure symptoms still needs professional assessment.
How Doctors Confirm the Diagnosis
The first goal is to confirm that the pattern is truly central and to identify its cause. A clinician may begin with the history from the person and bed partner, a medication review, heart and lung examination, oxygen measurement, and review of previous heart or neurologic diagnoses.
| Test or assessment | What it can show | Why it matters |
| Overnight polysomnography | Sleep stages, airflow, breathing effort, oxygen levels, heart rhythm, central and obstructive events | Confirms the pattern and measures severity |
| Echocardiogram | Heart structure, pumping function, and ejection fraction | Guides heart-failure treatment and device decisions |
| Medication and substance review | Opioids, sedatives, alcohol, or other respiratory suppressants | May reveal a reversible driver |
| Oxygen and blood-gas assessment | Low oxygen or abnormal carbon dioxide | Helps explain respiratory instability |
| Neurologic evaluation or imaging | Stroke, brain injury, or other neurologic disease | Used when symptoms or history suggest a central nervous system cause |
| Kidney and metabolic testing | Renal dysfunction or electrolyte and acid-base problems | Finds systemic contributors |
The 2025 American Academy of Sleep Medicine clinical practice guideline emphasizes individualized treatment of central sleep apnea based on cause, symptoms, and response rather than one universal device. View the 2025 central sleep apnea treatment guideline on PubMed. This is especially important in people with heart failure, where heart function and the specific breathing therapy must be reviewed together.
Treatment Options
Treatment is directed at the underlying condition and the sleep-related breathing disorder. A person may need more than one approach, and the safest choice depends on the cause, heart function, oxygen level, symptoms, and sleep-study findings.
| Approach | When it may be considered | Goal | Important caution |
| Optimize heart-failure care | Cheyne-Stokes breathing associated with heart failure | Improve circulation, congestion, symptoms, and respiratory stability | Medication or device changes belong to the cardiology team |
| CPAP | Selected central sleep apnea patterns, sometimes as an initial positive-airway-pressure option | Stabilize breathing and support the airway | Effectiveness must be checked with follow-up data |
| BPAP with backup rate | Selected cases needing assisted breaths | Support ventilation when spontaneous breathing pauses | Not the same as ordinary bilevel therapy without a backup rate |
| Adaptive servo-ventilation | Selected central breathing patterns after specialist assessment | Adjust support breath by breath | Heart-failure status and current evidence require careful specialist review |
| Supplemental oxygen | Selected people with sleep-related low oxygen or central events | Reduce oxygen drops and respiratory instability | Oxygen is prescribed therapy, not a home experiment |
| Acetazolamide | Certain central sleep apnea or altitude-related patterns | Shift breathing chemistry to improve stability | Can affect electrolytes and kidneys |
| Phrenic nerve stimulation | Some adults with moderate to severe central sleep apnea | Stimulate the diaphragm during sleep | Requires an implant evaluation and follow-up |
| Address medicines or altitude | Medication-related or altitude-related central breathing | Remove or reduce the trigger | Do not abruptly stop prescriptions; severe altitude illness requires descent |
| Home breathing exercises are not treatment
Slow-breathing exercises may help stress in otherwise stable people, but they do not correct Cheyne-Stokes physiology, heart failure, a stroke, medication toxicity, or central sleep apnea. Do not delay evaluation while trying to control the pattern consciously. |
What a Bed Partner or Caregiver Should Do
| What you observe | What to do now | What to document |
| Repeating pattern during sleep, person wakes normally, no severe distress | Arrange a prompt medical appointment, especially with heart failure, stroke history, opioid use, or daytime sleepiness | Time, duration, position, snoring, gasping, medicines, and a short recording if safe |
| New pattern plus worsening swelling, rapid weight gain, breathlessness, or inability to lie flat | Contact the heart-failure or medical team urgently; use emergency care for severe symptoms | Recent weights, medicine changes, oxygen readings if prescribed, and symptom onset |
| Blue or gray lips, severe breathing difficulty, chest pain, fainting, confusion, or cannot wake | Call 911 immediately | Do not delay emergency care to record the pattern |
| Possible opioid overdose with abnormal breathing | Call 911, give naloxone if available, and follow dispatcher instructions | Substance, approximate time, dose if known |
| Known hospice patient with a new breathing change | Call the hospice nurse for the comfort plan unless emergency intervention is desired under the care goals | Comfort, agitation, secretions, color changes, and other new symptoms |
Does Cheyne-Stokes Breathing Mean Someone Is Dying?
Cheyne-Stokes breathing can appear near the end of life, when the brain, heart, lungs, and circulation can no longer maintain a steady rhythm. It can also occur in people who are not actively dying, particularly during sleep with heart failure, after a stroke, or at altitude. The setting and the person’s overall condition matter more than the breathing label alone.
For a person receiving hospice or palliative care, the clinical team may focus on comfort, positioning, mouth care, relief of breathlessness or anxiety, and support for the family. Caregivers should follow the documented goals of care and call the hospice number when the pattern changes. A family should not assume a precise timeline from a breathing pattern alone.
For someone who is not expected to be near the end of life, a new Cheyne-Stokes pattern should not be dismissed as normal aging. It may be the first visible clue to worsening heart failure, central sleep apnea, a neurologic problem, or medication toxicity.
When to Call 911
- The person is unresponsive or cannot be awakened normally.
- Breathing is absent, only gasping, or clearly ineffective.
- Lips, face, or fingertips become blue or gray.
- There is sudden chest pain, pressure, fainting, or severe shortness of breath.
- There are stroke signs, including facial droop, arm weakness, speech difficulty, sudden confusion, or loss of coordination.
- An opioid or sedative overdose is possible.
- A person at altitude develops confusion, severe breathlessness at rest, inability to walk normally, or frothy cough.
| If the person is not breathing normally
Call 911, begin CPR if instructed and able, use an automated external defibrillator if available, and give naloxone when opioid overdose is suspected and naloxone is available. Agonal gasps are not normal breathing. |
Frequently Asked Questions
Is Cheyne-Stokes breathing the same as central sleep apnea?
It is a specific periodic breathing pattern that commonly occurs with central sleep apnea. Central sleep apnea can also appear in other patterns, so the terms are related but not identical.
Can a healthy person have this pattern?
Brief periodic breathing can occur at high altitude and during transitions into sleep, but a clear recurring pattern in an adult, especially with symptoms or medical illness, deserves evaluation.
Is it always caused by heart failure?
No. Heart failure is a major association, but stroke, neurologic disease, high altitude, kidney disease, opioids, sedatives, and other serious illnesses can contribute.
Does the person know they stop breathing?
Often not. A bed partner may notice the pattern first. The person may instead report poor sleep, morning headache, nighttime breathlessness, or daytime fatigue.
Can a smartwatch diagnose it?
A wearable may show oxygen or breathing irregularities, but it cannot reliably distinguish Cheyne-Stokes breathing from obstructive events or other artifacts. Diagnosis generally requires clinical assessment and sleep testing.
Does sleeping on the side stop it?
Position can influence some sleep-breathing patterns, but side sleeping is not a reliable treatment for central periodic breathing. The underlying cause still needs evaluation.
Can CPAP treat it?
CPAP may help selected people, but not everyone. The response should be checked by a sleep specialist, and other therapies may be more appropriate depending on the cause and heart function.
Should sedatives be avoided?
Alcohol, opioids, and sedating medicines can worsen breathing in some people. Do not stop prescribed medicine abruptly, but review every sedating product with the clinician.
Can it happen while awake?
Yes, especially in advanced heart failure, neurologic disease, severe illness, or near the end of life. A new awake pattern should be assessed promptly.
How long does each cycle last?
Cycle length varies. Observation alone is not precise enough to grade severity, which is one reason overnight monitoring is useful.
Bottom Line
Cheyne-Stokes breathing is a visible sign of an unstable breathing-control system, not a condition to manage with sleep tips alone. The most useful next step is to confirm the pattern, identify whether heart failure, neurologic disease, altitude, medication, or another illness is driving it, and choose treatment with the appropriate medical team.
A calm observation can help when the person is stable, but severe breathlessness, blue or gray color, inability to wake, chest pain, stroke signs, agonal gasping, or possible overdose requires immediate emergency action.
| Medical disclaimer
This article is for general education and cannot diagnose a breathing disorder. Contact a qualified healthcare professional about witnessed breathing pauses or a repeating abnormal pattern. Call 911 in the United States for severe breathing difficulty, unresponsiveness, blue or gray color, chest pain, stroke symptoms, agonal gasps, or suspected overdose. |