Alain P. Yelnik

Learn More
BACKGROUND AND PURPOSE There is no effective medical treatment of malignant middle cerebral artery (MCA) infarction. The purpose of this clinical trial was to assess the efficacy of early decompressive craniectomy in patients with malignant MCA infarction. METHODS We conducted in France a multicenter, randomized trial involving patients between 18 and 55(More)
OBJECTIVE To test the hypothesis that postural imbalance after stroke may be caused by inability to use pertinent somatosensory, vestibular, or visual information. DESIGN Description of the sensory organization of patients with hemiplegia. SETTING Public rehabilitation center in France. PARTICIPANTS Forty patients with hemiplegia after a single(More)
OBJECTIVE To test the hypothesis that balance rehabilitation with visual cue deprivation improves balance more effectively than rehabilitation with free vision. DESIGN Single-blind, randomized controlled trial. SETTING Public rehabilitation center in France. PARTICIPANTS Twenty patients with hemiplegia after a single-hemisphere stroke that occurred at(More)
BACKGROUND AND PURPOSE "Sinking skin flap" (SSF) syndrome is a rare complication after large craniectomy that may progress to "paradoxical" herniation as a consequence of atmospheric pressure exceeding intracranial pressure. The prevalence and characteristics of SSF syndrome after hemicraniectomy for malignant infarction of the middle cerebral artery are(More)
OBJECTIVE To determine whether misperception of the subjective visual vertical (SVV) underlies balance difficulties in hemiplegic patients. DESIGN Descriptive study, using a convenience sample. SETTING Department of physical medicine of a university hospital. PARTICIPANTS Thirty inpatients with hemiplegia after a hemispheric stroke during the 3(More)
This report identifies fundamental problems to be addressed in order to build relevant clinical tests of human balance while standing. The stated purpose of these tests is identification of lesion site and/or definition of functional balance deficits in a specific patient. During a recent consensus meeting (ESCEBD), 60 researchers and experienced clinical(More)
This article describes a conglomerate measure of gait variability based on nine spatiotemporal parameters: the Gait Variability Index (GVI). Concurrent validity, inter-session reliability and minimum detectable change (MDC) were evaluated in 31 patients with Friedreich's Ataxia (FRDA), through comparisons with classically used evaluation tools such as the(More)
BACKGROUND Dystonia and spasticity are common symptoms in children with Cerebral Palsy (CP), whose management is a challenge to overcome in order to enable the harmonized development of motor function during growth. AIM To describe botulinum toxin A (BTX-A) use and efficacy as a treatment of focal spasticity in CP children in France. METHODS This(More)
Gait characteristics of a healthy adult population have been used to develop the Functional Ambulation Profile (FAP) score to evaluate gait in patients with neuromuscular or musculoskeletal involvement (A. J. Nelson, 1974). Further technological progress allowed a more precise recording of walk parameters and propitiated the development of the Functional(More)