Excerpt

This study looked at sleep in people with nine different genetic conditions associated with seizures. Sleep problems were common, but many were not formally diagnosed, suggesting they may be underrecognized and undertreated in these communities. 

At the time of posting, this study is a preprint, meaning it has been shared publicly but has not yet been peer reviewed by other scientists, so its findings should be considered preliminary.

 

What It’s About

Researchers reviewed medical records of 252 individuals with nine different genetic conditions, including 21 with KCNQ2-related disorders. They compared official sleep diagnoses with sleep concerns noted during clinic visits and examined nighttime seizures and sleep EEGs.

Across the full group, only 25% had a formal sleep diagnosis, yet 58% had sleep difficulties noted in their records, a gap that suggests many sleep problems may be going unrecognized. These difficulties were especially common in people with ongoing seizures, and in those with autism or attention-deficit/hyperactivity disorder (ADHD).

In people with KCNQ2-related disorders, the sleep concerns noted most often were trouble falling or staying asleep, daytime sleepiness, and seizures during sleep or while falling asleep/waking up. Among those with a sleep EEG, 58% showed seizure-like brain activity during sleep, and 37% showed disrupted sleep architecture. Most of these concerns were seen in people with KCNQ2-related developmental and epileptic encephalopathy (KCNQ2-DEE). Those with self-limited familial neonatal epilepsy (SeLFNE) had all become seizure-free, and few had sleep concerns. 

 

Why It Matters

Poor sleep and seizures are closely linked, though it’s not always clear which one is driving the other. Not getting enough quality sleep can make seizures harder to control, and having seizures can, in turn, disrupt sleep. For families of individuals with KCNQ2-related disorders, these findings are a reminder to keep an eye on sleep and to bring it into conversations about care, even when no sleep disorder has been formally diagnosed. 

 

The Quick Term

Sleep architecture describes the pattern of sleep stages (light, deep, and REM sleep) you cycle through during the night. It can be seen on an EEG, and “disrupted” sleep architecture means the typical pattern is altered in some way.

 

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