Cognitive Impairment in Chronic Obstructive Pulmonary Disease

Background/Purpose Chronic obstructive pulmonary disease (COPD), especially in severe forms, is commonly associated with multiple cognitive problems. Montreal Cognitive Assessment test (MoCA) is used to detect cognitive impairment evaluating several areas: visuospatial, memory, attention and fluency. Our study aim was to evaluate the impact of stable COPD and exacerbation (AECOPD) phases on cognitive status using MoCA questionnaire. Methods We enrolled 39 patients (pts), smokers with COPD group D (30 stable and 9 in AECOPD) and 13 healthy subjects (control group), having similar level of education and no significant differences regarding the anthropometric measurements. We analyzed the differences in MoCA score between these three groups and also the correlation between this score and inflammatory markers. Results Patients with AECOPD had a significant (p<0.001) decreased MoCA score (14.6±3.4) compared to stable COPD (20.2±2.4) and controls (24.2±5.8). The differences between groups were more accentuated for the language abstraction and attention (p<0.001) and delayed recall and orientation (p<0.001) sub-topics. No significant variance of score was observed between groups regarding visuospatial and naming score (p = 0.095). The MoCA score was significantly correlated with forced expiratory volume (r = 0.28) and reverse correlated with C-reactive protein (CRP) (r = −0.57), fibrinogen (r = −0.58), erythrocyte sedimentation rate (ESR) (r = −0.55) and with the partial pressure of CO2 (r = −0.47). Conclusions According to this study, COPD significantly decreases the cognitive status in advanced and acute stages of the disease.

• Publication year

  2014

• Venue

  PLoS ONE

• Publication date

  2014-07-17

• Fields of study

  Medicine

• Identifiers
  DOI 10.1371/journal.pone.0102468PMID 25033379PMCID 4102489
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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