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Sleep Medicine

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A recent study has shown that adaptive servoventilation (ASV) may be harmful in heart failure patients with central sleep apnoea. The results indicated a 10% annual risk of cardiovascular death in ASV patients compared with 7.5% in the control group. The overall survival and hospitalisation rate was not different between the groups.

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Researchers find that having sleep apnea while pregnant could make the baby prone to metabolic disease as an adult. The study suggests that reoccurring oxygen deprivation, during pregnancy causes long-term changes in the offspring's liver's ability to maintain blood glucose level.

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Symptoms of depression and insomnia are the strongest predictors of having frequent nightmares, a new study concludes. A nightmare disorder may occur when repeated nightmares cause distress or impairment in social or occupational functioning.

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Navigational brain cells that help sense direction are as electrically active during deep sleep as they are during wake time, scientists have discovered. Such information could be useful in treating navigational problems associated with Alzheimer's disease and other neurological disorders.

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A team of neuropsychologists at Saarland University have shown that even a brief sleep of 45 to 60 minutes can significantly improve retention of learned material in memory

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People exposed to prolonged periods of shortened sleep have significant increases in blood pressure during nighttime hours, researchers report.

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TSGQ Sleep Diary

This sleep diary should be completed during the two weeks immediately prior to a multiple sleep latency test (MSLT) or a maintenance of wakefulness test (MWT). The diary consists of fourteen 24 hour graphs.  Please bring the completed diary with you when you attend the overnight study before your MSLT or MWT.

At bedtime, just before turning out the lights, record the following daily activities using the appropriate symbols at the appropriate time (Note: MN - midnight; MD – midday)

F Food
C Caffeine one “C” for each cup of tea, coffee or Coke
A Alcohol one “A” for each glass
NB Beginning of nap
NE End of nap
M Medication (ie: sleeping pill, sedative, regular medication)
Time you turned out lights to go to sleep

After your final morning wakening, but before getting out of bed, record the following:

  • Draw a thick line over the times you were asleep overnight.  Leave gaps for any time you were awake.
  • Mark the time at which you finally awoke and did not return to sleep with the appropriate symbol:
S Woke spontaneously
AL Woken by alarm or other stimuli
Time you actually got out of bed
  • In column A, estimate the time (in minutes) that it took to fall asleep after lights out
  • In column B, estimate the total amount of time spent awake (if at all) during the night (AFTER initially falling asleep and BEFORE finally waking)
  • Use the comments section below the sleep graphs to note any events which may affect your sleep

Download Sleep Diary (114kb)

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