Abstract
BackgroundPost-stroke depression (PSD) and cognitive impairment (PCI) are common conditions. This study aims to describe the protocol and preliminary findings of an investigation into factors associated with PSD and PCI 1–3 months after stroke (subacute phase) in survivors from the Study of Stroke Mortality and Morbidity (EMMA study). MethodsStroke patients underwent to clinical and neurological evaluations on admission to hospital. Cerebral magnetic resonance and biomarkers (serotonin, BDNF, IL-6 and IL-18) were carried out in the subacute phase. DSM-IV major depression for the diagnosis of PSD, cognitive functioning for the diagnosis of PCI and functional disability were also recorded at same time. ResultsOf the 103 eligible patients, 85.4% had ischemic stroke and 73.7% had first-ever stroke. In the subacute phase, 27.2% had PCI and 13.6% had current PSD (5.8% with ‘first episode’ and 7.8% with ‘recurrent’ depression). PCI was associated with low education (0–7 years of formal education: 75%) and ageing (median age: 70; interquartile range: 59–75 y-old). Left-sided stroke was more frequently associated with increased PCI than right-sided stroke (71.4% vs. 28.4%, p = 0.005). PSD was neither associated with stroke laterality nor tentorial area. Overall, biomarkers levels were not alterated in patients with PSD and PCI. LimitationsFindings are based on small sample and less disabled stroke participants, e.g. those without aphasia and deafness. ConclusionsFindings reinforce the need of early recognition and rehabilitation of PCI and PSD, mainly among those less educated and with left-sided stroke. PSD might occur through a pathophysiological pathway other than classical depression.
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