Abstract Mkid 43

The aim of the study was to compare the sleep architecture of two groups of patients who presented with insomnia. The first group consisted of 20 patients with sleep related breathing disorders (obstructive sleep apnoea) and the second group consisted of 22 patients with no evidence of obstructive sleep apnoea. The polysomnography recordings assessed 7 sleep related variables (sleep onset latency, episodes of awakening, REM sleep, oxygen saturation, respiratory disturbance index, sleep efficiency and total sleep time) and in addition the age as well as body mass index between the two groups of patients were also compared. Significant differences (p<0.05) were noted among the variables related to body mass index, oxygen saturation and respiratory disturbance index. The result of this study indicated the need to assess insomniacs appropriately as the management of these patients are related to the accuracy in identifying the underlying cause.