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July2007 Vol.44 Issue:        2        Table of Contents
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Neuropsychological Status and Health Related Quality of Life in Patients with Chronic Obstructive Pulmonary Disease

Mohamed A. Ahmed1, Khaled A. Mohamed1, Alaa Eldin M. Darweesh1, Safaa M. Wafy2, Hoda A. Makhlouf2

Departments of Neurology & Psychiatry1, Chest2, Assiut University



ABSTRACT

Background: A variety of neuropsychological factors may influence the quality of life of chronic obstructive pulmonary disease (COPD) patients beyond the extent of physical problems. This study aimed to investigate sub-clinical neuropsychological changes in patients with COPD; having different degrees of hypoxemia and their health related quality of life. Subjects and Methods: the study included 54 COPD patients compared with 40 normal healthy volunteers matched for age and sex as controls. COPD patients included 21patients without respiratory failure (RF) (38.9%) and 33 patients with RF (61.1%). All subjects underwent: study of Events Related Potentials (ERPs), Mini-Mental State Examination (MMSE), Kaufman Short Neuropsychological Assessment Procedure (K-SNAP) and Symptom Chick List-90-Revised (SCL-90-R). Patients were subjected to, spirometry, blood gases, conventional wakeful electroencephalography (EEG), and St. George Respiratory Questionnaire (SGRQ) examination. Results: Diffuse slowing in EEG reported in 54.5% of patients with RF and in 23.8% of patient without RF. There was a significant prolongation in P2L, N2L, and P3L in COPD patients without and with respiratory failure than controls; also, there was significant lower amplitude of P300 (P3A) in COPD patients with RF than the other groups. Both COPD patients without & with respiratory failure have mean total score and language score of MMSE significantly lower than the controls. The mean scores of Impairment Index on K-SNAP of COPD patients with and without RF were statistically significantly higher than the controls. Higher percentages of COPD patients with and without respiratory failure showed tendency to perform on the medium complex cognitive tasks better than the high complex cognitive tasks. COPD patients had significantly higher scores for many psychiatric symptoms than the controls and this was more remarkable among those with respiratory failure. Scores of all items of SCL-90-R were positively correlated to duration of COPD affection, severity of the disease and to different SGRQ components. COPD patients with RF have scores in all items of SGRQ significantly higher than those without RF. Conclusion: There were sub-clinical diffuse organic brain affection, associated with impairment of cognitive functions and many psychological troubles in COPD patients which were related to severity and duration of illness, which represent additional problems to physical effect of COPD, both reflecting more impairment in quality of life. So, early discovery and correction of these factors might help in improvement of quality of life of COPD patients.

(Egypt J. Neurol. Psychiat. Neurosurg., 2007, 44(2): 489-505)

 





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