الفهرس 
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Abstract
Lung cancer is the third most common cancer diagnosed among men and women (after prostate cancer and breast cancer). The quantity and quality of sleep comprise an important factor that affects the life quality of both healthy and sick individuals. Cancer patients suffer from higher rates of sleep disturbances than both the general and the psychiatric population.
Insomnia symptoms, excessive daytime sleepiness, and restlessness leg syndrome were found to be the most prevalent complaints, while they present with reduced sleep duration and efficiency, increased daytime napping, and difficulty in maintaining both sleep and wakefulness.
The causes of poor sleep quality may be attributed to anxiety, depression, pain, the use of opioids, fatigue, and to the cancer treatment itself and its side effects. In turn, the symptoms of anxiety and depression are likely deteriorated by the poor sleep quality.
The relationship between OSAS and lung cancer has been gained attention in a cohort study, but the authors were unable to find an association between OSAS and lung cancer incidence. Additionally, currently available evidence that assesses the association between OSAS and lung cancer mortality or outcomes is lacking.
The main aim of this study was to evaluate sleep pattern changes in patients with lung cancer.
This study had carried out in collaboration between Sleep Unit Chest Department Faculty of Medicine Menoufia University and Clinical Oncology and Nuclear Medicine Department Faculty of Medicine Menoufia University. 26 patients were diagnosed with bronchogenic carcinoma with different pathological types and stages according to TNM classification according to American Joint Committee of caner (AJCC) 8th edition. During the period from (April 2019 to April 2021). After having informed patient’s consent and approval of medical ethics committee of Menoufia University Hospital (112020CHES28).