Overview
Polysomnography (PSG) is a comprehensive sleep study used to diagnose sleep disorders.
It records various physiological parameters during sleep, including brain activity, eye movement, muscle tension,
heart
rate, respiratory effort and blood oxygen levels.
This multi-faceted approach helps to identify disorders such as sleep apnoea, narcolepsy, restless leg syndrome and
other sleep-related conditions.
Symptoms
Symptoms that may indicate the need for a polysomnography evaluation include:
- Excessive daytime sleepiness
- Loud snoring or observed pauses in breathing during sleep
- Unexplained insomnia or difficulty sleeping
- Frequent awakenings during the night
- Nightmares or unusual behaviours during sleep (e.g., sleepwalking)
- Fatigue or lack of energy during the day
Diagnosis
Prior to a PSG, a clinical assessment and sleep questionnaire are conducted by your healthcare professional. The PSG
sleep study is usually recommended based on the results from this initial evaluation.
Treatment
Treatment following polysomnography will depend on the specific sleep disorder diagnosed.
Common treatment approaches may include:
- Continuous Positive Airway Pressure (CPAP): Often used for obstructive sleep apnoea, this device keeps the
airways
open during sleep.
- Lifestyle modifications: Including weight management, sleep hygiene practices and changes in sleep environment.
- Medications: To manage certain sleep disorders like insomnia or restless leg syndrome.
- Cognitive Behavioural Therapy for Insomnia (CBT-I): A structured programme to improve sleep quality and habits.
Polysomnography is an essential tool for accurately diagnosing sleep disorders, allowing for personalised treatment
plans to improve sleep quality and overall health. It is important to work with healthcare professionals
specialising in
sleep medicine for appropriate evaluation and management.
