J Korean Neurol Assoc > Volume 21(3); 2003 > Article

Journal of the Korean Neurological Association 2003;21(3): 255-260.

"콜린에스테라아제 억제제가 알쯔하이머병 환자의 국소 뇌혈류에 미치는 영향: 99m TC-ECD SPECT를 이용한 예비 연구"

박미영 , 조인호

영남대학교 의과대학 신경과학교실, 핵의학교실

"Regional Cerebral Blood Flow Changes in Alzheimer s Disease Patients Treated with Cholinesterase Inhibitors: A Preliminary Study using"

Mee Young Park

Department of Neurology and Neuclear Medicine*, College of Medicine, Yeungnam University

Abstract

"Background: This study aimed to evaluate regional cerebral blood flow (rCBF) changes using 99m TC-ECD SPECT (Ethylene Cysteine Diethylester Single Photon Emission Computed Tomography) and contemporary clinical responses such as cognitive and psychiatric symptoms and activities of daily living (ADL) after cholinesterase inhibitors (ChEI) treatment.
Methods: The subjects were eight probable Alzheimer s disease (AD) patients (four males and four females, mean age 69.63 years) who were recruited from the department of Neurology, at Yeungnam University Medical Center, between August 2000 and April 2002. The clinical diagnosis of AD was based on the DSM-Ⅳand NINCDS-ADRDA criteria. Hachinski ischemic scores of all the patients were below 1. The mean treatment duration was 30.38 weeks which ranged from 24 to 44 weeks. Four patients received Rivastigmine (Exelon ⓡ ) 12 mg after titration, and three patients received Donepezil (Aricept ⓡ ) 10 mg during the whole period and only one patient had Donepezil 10 mg after the initial 5 mg for three weeks. The base line and follow up 99m TC-ECD SPECT studies were done on an average 6 days before the ChEI treatment and 4 days after finishing the study.
Results: The most significant increase in blood flow occurred in the bilateral parietal lobes (p<0.05). Reduction in the rCBF is more profound on the left hemisphere in the base line (p<0.05) and it achieved significant increase of rCBF after ChEI treatment compared with the right hemi-sphere (p<0.05).
Conclusions: Treatment with ChEI for 30.38 weeks increased rCBF and overall increased in global cognitive functions including K-MMSE, ADAS-cog, CDR, CDR-SB, GDS, and NPI and ADCS-ADL scores.Key Words: Alzheimer s disease, Cholinesterase inhibitors, Regional cerebral blood flow, ECD-SPECT"