Have you ever wondered if your patient pausing to breathe in their sleep is concerning or not? Learn about the signs of central sleep apnea and which medical conditions it is often associated with in pediatric patients in this episode.

This episode was written by pediatricians Tammy Yau, Lidia Park, and Jessica Ahn, with content support from Ambika Chidambaram (UCD pediatric pulmonology). Pediatricians Tammy and Lidia take full responsibility for any errors or misinformation.

Follow us on Twitter/X @Pediagogypod, Instagram/Threads @pediagogy, Bluesky @pediagogypodcast.bluesky.social, and connect with us at pediagogypod@gmail.com

Key Points

• Central sleep apnea (CSA) occurs when the brain’s central respiratory drive can’t send proper signals to the muscles that are part of breathing.
• CSA is diagnosed by a polysomnogram if there are apneic episodes that last 20 seconds or longer or if they are associated with oxygen desaturations, arousals, or heart rate changes (specific criteria in footnote).
• Central apneas are considered normal during certain stages of sleep (onset, during REM, after arousal), in premature infants less than 37 weeks corrected gestational age, and when ascending to altitudes greater than 3500 m above sea level.
• Common pediatric conditions associated with CSA include congenital central hypoventilation syndrome, achondroplasia, and Arnold-Chiari malformations.

Diagnostic Criteria for CSA

• Apneic episodes last 20 seconds or longer OR
• The apnea lasts at least the duration of two breaths during baseline breathing and is associated with an arousal or at least a 3% oxygen desaturation OR
• If the event occurs in an infant younger than 1 years old, it has to last at least the duration of two breaths during baseline breathing AND be associated with a decrease in heart rate to less than 50 beats per minute for at least 5 seconds OR less than 60 beats per minute for 15 seconds

Diagnostic Criteria for Periodic Breathing

• At least three episodes of central pauses lasting for at least 3 seconds interspersed by less than 20 seconds of normal breathing.

References

• Gipson K, Lu M, Kinane TB. Sleep-Disordered breathing in children. Pediatrics in Review. 2019;40(1):3-13. doi:10.1542/pir.2018-0142
• McLaren AT, Bin-Hasan S, Narang I. Diagnosis, management and pathophysiology of central sleep apnea in children. Paediatric Respiratory Reviews. 2018;30:49-57. doi:10.1016/j.prrv.2018.07.005
• Berry RB, Budhiraja R, Gottlieb DJ, et al. Rules for scoring respiratory events in sleep: Update of the 2007 AASM Manual for the Scoring of Sleep and Associated Events. Journal of Clinical Sleep Medicine. 2012;08(05):597-619. doi:10.5664/jcsm.2172
• Javaheri S, Dempsey JA. Central sleep apnea. Comprehensive Physiology. Published online December 10, 2012:141-163. doi:10.1002/cphy.c110057
• Selim BJ, Somers V, Caples SM. Central sleep apnea, hypoventilation syndrome, and sleep in high altitude. In: Springer eBooks. ; 2017:597-618. doi:10.1007/978-1-4939-6578-6_33
• Fauroux B, AlSayed M, Ben-Omran T, et al. Management of sleep-disordered breathing in achondroplasia: guiding principles of the European Achondroplasia Forum. Orphanet Journal of Rare Diseases. 2025;20(1). doi:10.1186/s13023-025-03717-0

Wondering how you describe the rash of measles, molluscum contagiosum, hand foot mouth, or chickenpox? Learn how in today’s episode!

This episode was written by pediatricians Tammy Yau and Lidia Park with content support from Aruna Venkatesan and Gabriel Molina (dermatologists at Santa Clara Valley Medical Center). Pediatricians Tammy and Lidia take full responsibility for any errors or misinformation.

Follow us on Twitter/X @Pediagogypod, Instagram/Threads @pediagogy, Bluesky @pediagogypodcast.bluesky.social, and connect with us at pediagogypod@gmail.com

Key Points:

• When describing a rash, include the basic morphology, size, color, location, distribution and configuration, and any secondary morphology
• When taking photos, try to have natural light and make sure the rash is in focus. If taking a close up photo, make sure to have a photo further away so that the location of the rash is clear.

Sources:

• Stanford Medicine: https://stanfordmedicine25.stanford.edu/the25/dermatology.html
• Allmon A, Deane K, Martin KL. Common skin rashes in children. American family physician. 2015 Aug 1;92(3):211-6.
• CDC Measles: https://www.cdc.gov/measles/data-research/index.html

How do you know when a head injury can be observed or if more work-up needs to be done? Find out in this episode!

This episode was written by pediatricians Tammy Yau and Lidia Park with content support from Julia Magana (pediatric emergency medicine). Pediatricians Tammy and Lidia take full responsibility for any errors or misinformation.

Follow us on Twitter/X @Pediagogypod, Instagram/Threads @pediagogy, Bluesky @pediagogypodcast.bluesky.social, and connect with us at pediagogypod@gmail.com

Key Points:

• Low risk head injuries do not need head imaging. The criteria for low risk head injuries are those where the patient’s GCS is 15 without altered mental status and do not have signs of skull fracture. If any of these signs are present, head imaging with a head CT is recommended
• If the head injury includes history of loss of consciousness or vomiting, a non-frontal scalp hematoma (ie parietal, temporal, or occipital), a severe mechanism of injury, or a severe headache, then generally observation is still recommended but a head CT can be obtained based on clinical decision making.

Sources:

• Stat Pearls. Pediatric Head Trauma. Micelle J, et al. February 2024: https://www.ncbi.nlm.nih.gov/books/NBK537029/
• Pediatrics. Abusive Head Trauma in Infants and Children: Technical Report. Sandeep Narang, et all. February 2025: https://publications.aap.org/pediatrics/article/155/3/e2024070457/201049/Abusive-Head-Trauma-in-Infants-and-Children