Polysomnography – Medxy AI

Decoding Sleep’s Role in Cognitive Health and Dementia Risk: Insights from the Sleep and Dementia Consortium

By MedXY 07/31/2026

This study identifies distinct sleep patterns linked to cognitive performance but finds no significant direct association with dementia risk, highlighting the complexity of sleep-cognition relationships in aging populations.

news Otorhinolaryngology Pediatrics

Clinical and Polysomnographic Characteristics Distinguishing Extreme from Very Severe Pediatric Obstructive Sleep Apnea

By MedXY 07/13/2026

This study delineates phenotypic and polysomnographic differences in children with extreme versus very severe OSA, highlighting the critical role of obesity and oxygenation metrics in identifying extreme cases.

news Respiratory

Why One Sleep Study May Not Tell the Whole Story: Night-to-Night Variability, AHI Definitions, and OSA Reclassification

By MedXY 06/19/2026

A recent Chest study shows that PSG metrics vary unevenly across nights, and AHI scored with 4% desaturation is less stable than AHI 3%/arousal. Hypoxic burden was more reproducible and may better reflect true OSA severity.

news Otorhinolaryngology Respiratory

In-Lab vs. At-Home Sleep Studies: Determining Minimum Recording Time and the Role of Positional Sleep Apnea

By MedXY 03/23/2026

This study compares in-lab and home sleep tests, revealing that in-lab polysomnography requires at least 6 hours of recording for accuracy, while home tests need only 3 hours, particularly due to the variables introduced by positional obstructive sleep apnea.