A STUDY OF SLEEP QUALITY IN PATIENTS WITH TYPE 2 DIABETES MELLITUS COMPLICATED BY DIABETIC POLYNEUROPATHY
Abstract
This article examines the sleep quality of patients with type 2 diabetes mellitus (T2DM) complicated by painful diabetic polyneuropathy (DPN). Sleep disturbances occur in 50-80% of patients with chronic pain, with the severity of sleep disturbances depending on pain intensity. Sleep disturbances and neuropathic pain are interrelated and should be treated simultaneously. To improve sleep, one factor influencing sleep—treatment of the painful form of DPN—leads patients to improved sleep quality and, simultaneously, quality of life. The relationship between neuropathic pain and sleep disturbances is bidirectional. Patients with neuropathic pain are more likely to develop sleep disturbances, and these disturbances, in turn, lead to increased pain. A positive correlation has been found between pain sensitivity and sleep disturbances. Decreased pain tolerance was found in patients suffering from chronic pain and insomnia. Our study included 120 patients with type 2 diabetes. The disease duration ranged from 3 to 12 years, the average age of the subjects was 56.6 ± 9.8 years, 79 women (65.8%), 41 men (34.2%). The control group included 20 patients without diabetes, 5 of whom (25%) had hypertension, the average age was 55.9 ± 7.5 years. Patients were divided into two groups: one with sleep quality disorders and the other without sleep quality disorders. Sleep quality disorders of varying degrees were found in 100% of patients with type 2 diabetes complicated by the painful form of DPN. The most common complaint among patients in Group 1 was "feeling tired after waking up from sleep." This complaint was reported by 100% of patients, compared to only 45% of patients in Group 2. Other complaints affecting sleep quality were also more common in Group 1. This, in turn, further confirmed the impact of the painful form of DPN in type 2 diabetes on sleep quality in different patients.
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