ABSTRACT
OBJECTIVE: To study cognitive dysfunction and brain electrical activity in sleep-wakefulness cycle in patients with frontal lobe tumors. MATERIAL AND METHODS: Twenty patients, aged 48.6±4.2 years, and ten healthy volunteers participated in the study. The first group included patients without cognitive impairment and tumors 8.9±5.1 cm3, the second group included patients with cognitive impairment and tumors 40.7±2.1 cm3. The battery of cognitive impairment tests was used. The EEG of wakefulness and night sleep was recorded. RESULTS: Cognitive impairment in patients with lobe tumors is associated with increases in delta/theta, and areactivity of the cortex in wakefulness, increases in delta/theta/alpha in REM and declining number of arousals in REM. CONCLUSION: The results of the study may be useful in early detection of biomarkers of the cognitive impairment in patients with frontal lobe tumors in order to increase the efficiency of rehabilitation of patients.
Subject(s)
Neoplasms , Wakefulness , Cerebral Cortex , Cognition , Electroencephalography/methods , Humans , Sleep , Sleep, REMABSTRACT
The article describes a case of isolated right ventricular myocardial infarction induced by proximal occlusion of the right coronary artery in a patient with the left type of heart blood supply. A specific feature of the case was detection of the McConnell's sign, which is considered characteristic of pulmonary artery thromboembolism.
Subject(s)
Myocardial Infarction , Pulmonary Embolism , Acute Disease , Coronary Vessels , Heart Ventricles/diagnostic imaging , Humans , Myocardial Infarction/diagnosis , Pulmonary ArteryABSTRACT
AIM: To study cycle organization of night sleep and analyze brain electrical activity during sleep in patients with primary brain tumor before and after surgical intervention. MATERIAL AND METHODS: Ten patients, mean age 48.6±4.2 years, with primary tumors participated in the study. Polysomnography study was performed before and on the 7th day after surgical intervention. RESULTS: Shot delta-sleep latency, shorter 2nd stage, disturbances of rhythmogenesis in the 2nd stage and higher delta-sleep activity were observed before and after surgical intervention. There were changes in the brain electrical activity during delta-sleep and REM. The changes in the first sleep cycles were noted before surgical intervention. The greater amount of stage 2 was found after surgery. CONCLUSION: The results can be used to correct the accompanying therapy in the early postoperative period to improve its efficacy.
