Predictive potential of pre-operative functional neuroimaging in patients treated with subthalamic stimulation.

Abstract:

PURPOSE:The aim of this study was to investigate the predictive potential of pre-operative regional cerebral blood flow (rCBF) in the pre-supplementary motor area (pre-SMA) and clinical factors in Parkinson's disease (PD) patients treated with subthalamic nucleus (STN) stimulation. METHODS:Ten patients underwent rCBF SPECT and motor Unified Parkinson's Disease Rating Scale (UPDRS) pre- and post-operatively during stimulation at 5 and 42 months. Statistical parametric mapping (SPM) was used to extract rCBF values in the pre-SMA because it is related with motor improvement. Post-operative outcomes included motor response to stimulation and percent improvement in UPDRS. Pre-operative predictors were explored by correlation test, linear regression and multivariate analyses. RESULTS:Higher pre-operative rCBF in the pre-SMA and younger age were associated with favourable outcomes at 5 and 42 months. Pre-operative rCBF results were significantly associated with baseline clinical factors. CONCLUSION:This study shows that PD patients with younger age have higher rCBF values in the pre-SMA and better outcome, thus giving the rationale to the hypothesis that STN stimulation could be considered early in the course of disease.

authors

Sestini S,Pupi A,Ammannati F,Ramat S,Sorbi S,Sciagrà R,Mansi L,Castagnoli A

doi

10.1007/s00259-009-1198-6

subject

Has Abstract

pub_date

2010-01-01 00:00:00

pages

12-22

issue

1

eissn

1619-7070

issn

1619-7089

journal_volume

37

pub_type

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