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Heart rate variability guide carefusion
The document discusses heart rate variability (HRV) and its physiological significance, particularly in relation to obstructive sleep apnea (OSA). It explains the Poincaré plot as a tool for visualizing HRV, illustrating changes in heart rate during bradycardia and tachycardia, and describes the typical HR patterns in OSA patients. Additionally, it highlights advancements in home sleep testing technology developed by Nox Medical for sleep-disordered breathing.
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Heart rate variability guide carefusion
- 1. Heart Rate VariabilityGuide Randy Clare Respiratory Diagnostics 2016
- 2. Normal HRV Normal PoincaréPlot Has variability to react to the physiologic changes that the body is going through during sleep
- 3. Heart Rate Variability •The Poincaré Plot ◦ X-axis :: measure of the current RR interval ◦ Y-axis :: measure of the next RR interval Current RRn Interval (x-axis) Next RR Interval (RRn+1) (y-axis)
- 4. Bradycardia - Normal SinusRhythm, where heart rate is below 60 bpm - All of the points shift to the upper right - Display’s INCREASED time between R-R intervals
- 5. Tachycardia ◦ All ofthe points shift to the lower left ◦ Display’s DECREASED time between R- R intervals
- 6. -“Dot” Pattern represents pacemaker -NO variabilityfrom the patient -Heart rate totally controlled by pacer Pacemaker
- 7. On Demand Pacemaker ◦Controlled Rhythm ◦ Not much variance
- 8. OSA – Brady/Tachy •Typical Pattern for OSA patient ◦ HR DECREASES during Apneic Event ◦ HR INCREASES after Apneic Event Decreased HR Increased HR
- 9. Obstructive Sleep Apnea “Fan”Pattern • Wide variations in R-wave interval • Typical OSA Patient pattern • Data points vary from Tachycardia (lower left corner) to Bradycardia (upper right corner) Tachycardia Points Bradycardia Points
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- 11. OSA Patient PostTreatment
- 12. Nox T3 byCareFusion, For Sleep Disordered Breathing (SDB) © 2015 CareFusion Corporation or one of its subsidiaries. All rights reserved.
- 13. Overview • Built byNox Medical • Started a new era in home sleep testing • Embraced by thousands of users world wide • Revolutionary technology • Delivers improved clinical efficiency • Comfortable for all patient groups Pediatric thru Adult
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