Sleep Study: Sleep Apnea Tests and Diagnosis
WHAT IS A SLEEP STUDY?
A sleep study or polysomnography is the overnight measurement of your bodily functions. These include breathing, snoring, Oxygen saturation, EKG, and brain activity during sleep.
WHEN DOES ONE NEED A SLEEP STUDY?
- Sleep Apnea
- Recording of sleep-related movements such as sleepwalking, sleep talking, sleep terrors, nighttime seizures, dream enacting behavior, etc.
- Narcolepsy
THERE ARE 4 TYPES OF SLEEP STUDY
SLEEP STUDY — TYPE I
Sleep studies are conducted in a hospital/clinic under the supervision of a sleep technician.
It has a minimum of 8 channels:
- EEG (brain activity)
- EOG (Eye Activity)
- ECG / Heart Rate (Cardiac activity)
- Chin EMG (muscle activity)
- Limb EMG (Legs muscle activity)
- Respiratory effort (thorax and abdomen movement)
- Air Flow (breathing)
- Pulse oximetry (Oxygen desaturation and pulse)
- Snoring
- Body Position
SLEEP STUDY — TYPE II
Sleep studies are conducted at home. Data recorded is the same as in Type I.
SLEEP STUDY — TYPE III
Device screens a person to establish the existence of the Obstructive Sleep Apnea Test.
- Airflow
- Pulse Oximetry (oxygen desaturation and pulse)
- Effort band (respiratory effort)
SLEEP STUDY — TYPE IV
Device screens a person to establish the existence of Obstructive Sleep Apnea.
It has only 1 or 2 channels:
- Pulse Oximetry (oxygen desaturation and pulse)
- Effort band (respiratory effort)
WHAT TREATMENT DO I NEED TO TAKE IF MY RESULT ARE POSITIVE FOR OSA?
Treatment usually involves Positive Airway Pressure (PAP) therapy which is the most effective therapy available for OSA. In addition, weight loss, regular physical exercise, stoppage of smoking, and drinking alcohol are also advocated as adjunctive Behavioural measures.
ABOUT THE DOCTOR
DR. MANVIR BHATIA MD ( MEDICINE), DM NEUROLOGY (AIIMS)
Dr. Manvir Bhatia is a Senior Neurologist and Sleep Specialist with > 30 years of experience.
She is the Director of Neurology Sleep Centre, New Delhi. She is currently the Vice President of the Indian Society for Sleep Research.
She is the author of the book “The Sleep Solution” the first non-fiction book on sleep in India. She has started the First Online Course for Sleep Training & Education in India. She is the Co-Founder of Ace School of Sleep Medicine Premier training facility for physicians and other health care professionals in the field of Sleep Medicine.
She has also been awarded by AAPIOS (American Association of Physicians of Indian Origin) She has been awarded Indira Gandhi Mahila Ratan Award. She is a Member of the Indian Academy of Neurology, Indian Epilepsy Society, Indian Sleep Disorders Association, and American Academy of Sleep Medicine.
You can book an online appointment with this doctor on our website: www.neurologysleepcentre.com
