[ARFID - Avoidant and restrictive food intake disorder : clinical characteristics]. / ARFID - Trouble de restriction/évitement de l'ingestion d'aliments : caractéristiques cliniques.

Avoidant and restrictive food intake disorder (ARFID) is a « new ¼ diagnosis introduced in the Diagnostic and statistical manual of mental disorders, fifth edition (DSM-5) in 2013. ARFID is a heterogeneous disorder that seems to be common in clinical settings and is associated with high levels of physical and psychological comorbidity and impact on physical health and psychosocial functioning. We present an overview of the available literature on ARFID and describe the current understanding of its correlates. We also describe two cases that exemplify ARFID in clinical practice.

Le trouble de restriction ou évitement de l'ingestion des aliments (ARFID, Avoidant and Restrictive Food Intake Disorder) est un «nouveau¼ diagnostic introduit dans le manuel diagnostique et statistique des troubles mentaux, 5e édition (DSM-5) en 2013. L'ARFID est un trouble hétérogène qui semble être commun dans les milieux cliniques; il est associé à d'importants taux de comorbidités physiques et psychologiques et impacte la santé physique et le fonctionnement psychosocial. Nous présentons un aperçu de la littérature disponible sur l'ARFID et décrivons la compréhension actuelle de ses corrélats. Nous décrivons également deux cas cliniques qui illustrent l'ARFID dans la pratique clinique.

Arterial spin labeling may contribute to the prediction of cognitive deterioration in healthy elderly individuals.

PURPOSE: To explore whether arterial spin labeling (ASL) imaging in cognitively intact elderly individuals may be used to predict subsequent early neuropsychological decline. MATERIALS AND METHODS: The local ethics committee approved this prospective study, and written informed consent was obtained from all participants. A total of 148 consecutive control subjects were included, 75 of whom had stable cognitive function (sCON) (mean age, 75.9 years ± 3.4 [standard deviation]; 43 female) and 73 of whom had deteriorated cognitive function (dCON) at 18-month clinical follow-up (mean age, 76.8 years ± 4.1; 44 female). An additional 65 patients with mild cognitive impairment (MCI) (mean age, 76.2 years ± 6.1; 25 female) were also included. Two-dimensional pulsed ASL was performed at the baseline visit. Statistical analysis included whole-brain voxelwise analysis of the ASL relative cerebral blood flow (CBF) data, receiver operating characteristic (ROC) curve analysis of the posterior cingulate cortex (PCC), and voxel-based morphometry analysis of gray matter. RESULTS: The voxelwise comparison of ASL revealed decreased relative CBF in the dCON group compared with that in the sCON group and slightly more pronounced relative CBF in the MCI group compared with that in the sCON group, most notably in the PCC (P < .05 corrected). Comparison of the dCON group with the MCI group revealed no significant differences. ROC analysis of relative CBF in the PCC enabled discrimination of dCON (P < .001; area under the ROC curve, 0.66). There was no confounding focal gray matter atrophy. CONCLUSION: Reduced ASL in the PCC at baseline is associated with the development of subsequent subtle neuropsychological deficits in healthy elderly control subjects. At a group level, ASL patterns in subjects with dCON are similar to those in patients with MCI at baseline, indicating that these subjects may initially maintain their cognitive status via mobilization of their neurocognitive reserve at baseline; however, they are likely to develop subsequent subtle cognitive deficits.