Introduction
Subjective memory complaints (SMC), “memory difficulties or problems reported by patients themselves and whether these are irritating and/or worrying for them”, are common after stroke.
SMCQ was self-rated questionnaires for SMC and reported to be a reliable and valid instrument for evaluating SMC in elderly. Therefore, the purpose of the present study was to find out the status of SMC in vascular dementia patients.
Method
In this study, subjects were consecutively recruited from inpatient post-stroke patients of stroke unit for younger population under age of 65, a rebailitation hospital in Seoul, Republic of Korea from June 2014 to July 20
The inclusion criteria were as follows; (1) Subjects were diagnosed as cerebrovascular disease with imaging evidence (CT and/or MRI) of cerebrovascular disease and (2) Age over 20 and less than 65 years.
We excluded subjects diagnosed other neurodegenerative disorder, severe depression, severe aphasia.
We measured SMCQ. SMCQ consists of 14 items reflecting meta-cognition of general and specific memories. 4 items of the SMCQ (SMCQ-G) access global memory function, and 10 items of the SMCQ (SMCQ-E) access everyday memory function, and 60 minutes Korean version of Vascular Cognitive Impairment Harmonization Standards Neuropsychological (60m-K-VCIHS-NP),MMSE, CDR.
To evaluate the validity of the SMCQ, Pearson correlation coefficients were used for the scores of the SMCQ and the scores of MMSE and the neuropsychological tests from K-VCIHS-NP.
Results
Table 2 presents concurrent validity of the SMCQ in stroke patients. SMCQ score showed good correlation with neuropsychological assessment tool which evaluates not only tests for memory, but also executive function (COWAT-animal, COWAT phonemic), and language function (K-BNT). In addition, SMCQ score showed good correlation with MMSE, widely used screening test for dementia. There is no significant correlation with MBI.
Conclusion
Subjective cognitive impairment is reported by almost all patients after stroke. This study suggests that SMCQ showed good correlation with other validated study, such as K-VCIHS-NP, MMSE.
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