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Thoracic Medicine

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Sleep Medicine

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Office workers with more light exposure at work had longer sleep duration, better sleep quality, more physical activity and better quality of life compared to office workers with less light exposure in the workplace.


Can you be sleep deprived without knowing it? Sleep is not always prioritised however the implications can be devastating. Even one night sleep deprived can be impacting your body on a variety of different levels; physically and psychologically. The only way to know if you are getting consolidated sleep is to monitor with specialised equipment what is happening when you are asleep.


In what may be the largest study of sleep problems among individuals with multiple sclerosis (MS), researchers at UC Davis have found that widely undiagnosed sleep disorders may be at the root of the most common and disabling symptom of the disease: fatigue. Study paticipant reports of sleep disorder frequency, sleep patterns and complaints of excessive daytime sleepiness suggest that sleep problems may be a hidden epidemic in the MS population.


A sleep-promoting circuit located deep in the primitive brainstem has revealed how we fall into deep sleep. Discovered by researchers at Harvard School of Medicine and the University of Buffalo School of Medicine and Biomedical Sciences, this is only the second "sleep node" identified in the mammalian brain whose activity appears to be both necessary and sufficient to produce deep sleep.  Using designer genes, researchers were able to 'turn on' specific neurons in the brainstem that result in deep sleep.


Insomnia can cause chronic inflammation, which can lead to weight gain, hypertension, diabetes, heart disease, and earlier death. This study finds that curing the insomnia reduces the inflammation and hopefully reduces disease. It also found the best way to cure lack of sleep is through the use of a common psychotherapy treatment - cognitive behavioural therapy.


Getting enough sleep is important to people of any age, but it is especially so for teenagers, with insufficient sleep possibly being linked to obesity as an adult.


Cleaning and Maintenance of CPAP Equipment

Q:  How often should I clean my mask and CPAP equipment?

A:  It is important that your CPAP equipment is cleaned regularly.  A few minutes spent each day will improve the lifespan of your equipment and will also ensure that the therapy is hygienic.


It is essential that every morning your mask is hand-washed in warm soapy water, thoroughly rinsed with clean water and allowed to air dry out of direct sunlight.  Avoid using harsh detergents or products that contain bleach, alcohol or antibacterial agents as these may damage your equipment.  Liquid soap or baby shampoo are recommended.

Disconnect the tubing from the machine/ humidifier and hang over a towel rack or door handle to allow it to dry.  The water tank should also be removed from the humidifier every morning and washed with a mild detergent.  It should not be replaced until you are ready to use your PAP device again.


Separate the components of your mask (including the headgear) and thoroughly clean in warm soapy water.   This is a good time to inspect the integrity of each part.  Any damaged pieces should be discarded and replaced.  A soft bristle brush, such as a clean toothbrush, is ideal for cleaning the frame and diffuser ports of your mask.   In addition, hand-wash the tubing that connects your mask to your PAP device and allow to air dry.



1. Disconnect headgear.


2. Wash using warm soapy water.


3. Rinse thoroughly.


4. Disassemble the mask (the mask here is forillustration purposes only).


5. Use a soft bristled toothbrush to clean the frame thoroughly.


6. Ensure the seal, clips and frame are separated for the best clean.


7. Use the toothbrush to thoroughly clean the seal.


8. Once cleaned rinse off all soap residue.


9. Once rinsed set aside out of direct sunlight to air dry.


Phillips Respironics System One


1. Remove your humidifier tub.


2. Open the tub and wash with warm soapy water.


3. Rinse tub thoroughly and leave to dry out of direct sunlight

ResMed S9 Series




1. Remove the humidifier tub from the machine.

2. Open the tub and clean in warm soapy water.

3. Rinse the tub and leave out of direct sunlight to air dry.

Machine Filters

Phillips Respironics System One


1. You should notice dust building up on the foam filter over time.


2. Occasional wiping with a damp cloth will remove the surface dust.


3. The filter should be replaced after 6-12 months.

ResMed S9 Series


1. Remove the filter cap.


2. Inspect the air intake.


3. Clean with damp cloth.


4. Replace old filter with new.


5. Dispose of old filter.

ResMed S8 Series



1. Remove the back cover.


2. Remove the old filter.


3. Dispose of the old filter.


4. Insert new filter


5. Replace back cover



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