MORE ZZZZZZZZ PLEEEZE! - Bryan Health
Transcript of MORE ZZZZZZZZ PLEEEZE! - Bryan Health
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MORE ZZZZZZZZ PLEEEZE!
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TO SLEEP PERCHANCE TO DREAM
PERCHANCE TO DIE • SNORING
• SLEEP APNEA
• HYPERTENSION CHF
• ARRHYTHMIAS
• AND OTHER GOOD STUFF
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SLEEP
• Most require between 6-10 hours/day – Average adult 7.5-8.0 hrs/day
– Greater or lesser sleep duration is assoc. with a shorter life span
• Sleep deprivation is common – Technology, societal pressures, sleep disorders
– Great expense to society • Motor vehicle accidents
• Decreased productivity
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Sleep Stages
• Non-REM sleep(75-80%) – Stage 1(5%) – Stage 2(50%) – Stage 3-4*(15-20%)
• REM sleep (20-25%) (*3/4 sleep=slow wave sleep=delta sleep)
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Sleep-Disordered Breathing A Brief Review
• New definitions (CMS, AASM SHHS 2001) – Apnea:
• 70% reduction in airflow for 10 seconds
– Hypopnea • 30% reduction in airflow with 4% desat for 10 sec
• Obstructive sleep apnea hypopnea syndrome (OSAHS=SDB=OSA) – AHI=RDI greater than or equal to 5 with
symptoms
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Dionysius of Herculea- Fourth Century BC
• (I am informed that Dionysius…..through daily gluttony and intemperance, increased to an extraordinary degree of corpulency and fatness, by reason whereof he had much ado to take breath)
• Therapy-fine long needles thrust through belly and ribs
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How We Got Joe
• 1822 - William Wadd “Cursory Remarks on Corpulence”
• 1877 - First accurate account by W. H. Broadbent in England
• Joe the Fat Boy in “The Pickwick Papers” by Charles Dickens
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Symptoms
• EDS • Snoring • Headache • Hypertension • Restless sleep • Hypercapnia • Pulmonary HTN • RVH • Polycythemia • GERD • Impotence
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Respiratory Disturbances
• Increased in males after age 35
• Increased in females after menopause
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SNORING
•Who
•Why
•Where
•When
•How
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At Risk Population
• Obese males or females
• History of loud snoring
• Hypothyroid
• Children with oropharyngeal abnormalities
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GENDER DIFFERENCES
•Males
-EDS, Bad Sleep, Loud Snoring
•Females -Daytime Fatigue, HA, Mood Prob
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Diagnostic Studies
• PSG
– EOG, Sleep Stages, EEG, Chin EMG
– Body Position
– ECG
– Respiratory Effort
– SaO2
– Air Flow
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Therapy
• Weight Loss • BPR • Tracheostomy • Surgery • Nasal CPAP
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Sleep-Disordered Breathing and Hypertension
• Normal blood pressure and heart rate response to sleep is to decline 10% (10-20 mmHg – Those who don’t are “nondippers” – Nondipping carries risk of
• Ventricular arrhythmias • Cardiac hypertrophy • Sudden cardiac death (in women)
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SDB and Hypertension
• Higher AHI equals higher A.M. blood pressure
• SDB converts “dippers” to “non-dippers”
• Results in increased cardiac stress
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SDB and Hypertension
•OSA in 40-60%
•Drug resistant 90% have OSA
•Effective CPAP Improves HTN
•Ineffective CPAP does not
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Overall Cardiovascular Response to Normal Sleep
• Fall in epinephrine
• Fall in heart rate
• Fall in morning BP (morning dip)
• Fall in cortisol (until 5 a.m.)
• Sympathetic activity declines
• Overall arrhythmogenicity falls
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SDB and Heart Attack
• OSA is a risk factor in MI
• Mortality much higher if AHI>20
• Known Cardiac pts. and severe OSA
– 5x greater mortality over time
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SDB and Heart Attack
•Silent Cardiac Damage
•Non Dippers have Higher Mortality
- 20% higher in one study
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OSA and CHF
•Stress on R & L Ventricles
•Enlargement and Failure
•Up to 75% Have OSA
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CHF and OSA
• Worse quality of life
• Worse cardiac function over time
• Increased mortality
• CPAP improves all of above
• Many patients were not sleepy
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ARRHYTHMIAS
•Causes
- Decreased O2
- Sympathetic Activity
- Non Dipping
- Cardiac Stretch
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Arrhythmias and OSA
•Atrial Fibrillation 49%
•Ventricular Events 60%
•Sudden Cardiac Death 2X
•CPAP Improves all of above
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Pulmonary hypertension
• Incidence-20% of patients with SDB(OSA)
• Risk Factors
-Obesity
-Decreased O2 Saturation
-Smoking
• Nasal CPAP improves pulmonary HTN
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Summary
• Sleep reduces cardiac risk in normals
• REM sleep is a vulnerable time for cardiac patients
• OSAHS causes cardiovascular disease – Hypertension, systemic and pulmonary
– Ischemic events
– Arrhythmias
– CHF
• Beta blockers disrupt sleep, but save lives
• CPAP reduces cardiac risk of SDB
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RIP VAN WINKLE
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“Don’t ever go to sleep. Too many people die there.”
Mark Twain
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QUESTIONS
Thank you
Tim Lieske M.D.
402-474-3704