Clonidine-assisted EEG in children: A three year retrospective review of effectiveness and safety

Area of Science:

• Pediatric Neurology
• Clinical Neurophysiology

Background:

• Electroencephalography (EEG) is crucial for diagnosing neurological conditions in children.
• Many children, particularly those with neurodevelopmental or behavioral challenges, struggle to tolerate non-sedated EEG recordings, leading to failed or suboptimal studies.
• Sedation is often considered to improve EEG acquisition in this population.

Purpose of the Study:

• To assess the efficacy and safety of using clonidine for sedation during pediatric EEG procedures.
• To determine if clonidine facilitates successful EEG recording and sleep capture in children who typically cannot tolerate standard or sleep-deprived EEGs.

Main Methods:

• A retrospective review of 75 clonidine-sedated EEGs performed between September 2022 and September 2025 was conducted.
• Data collected included patient demographics, prior EEG history, study outcomes (success, sleep obtained), and adverse events.
• Statistical analysis involved descriptive statistics and Mann-Whitney U tests.

Main Results:

• Clonidine sedation resulted in an 82% success rate for EEG completion, including 76% in children with prior failed non-sedated EEGs.
• Sleep was obtained in 68% of recordings, with 78% of children achieving sleep with clonidine who had not previously.
• EEG abnormalities were identified in 60% of successful studies, with no reported adverse events like unplanned admissions or abandoned procedures.

Conclusions:

• Clonidine sedation is a safe and effective strategy for pediatric EEG acquisition, particularly for children with developmental or behavioral issues.
• It significantly enhances the ability to capture sleep during EEG and increases the likelihood of detecting neurological abnormalities.
• Utilizing clonidine can reduce the number of failed EEG attempts and improve diagnostic yield in selected pediatric patients.