Neuromodulation Through Multisensory Stimulation for Visual Field Deficits in the Subacute Stage of Disease
A legfontosabb adatok
- Hol
- Milan (Olaszország)A helyszín megnézése
AI-kivonat: kiket keres a vizsgálat
A vizsgálat saját részvételi feltételeiből. Gép olvasta ki az oldalon álló regiszterszövegből, ezért tévedhet. Hogy ki vehet részt, azt a lenti regiszterszöveg és a vizsgálat csapata dönti el.
A vizsgálat olyan felnőtteket keres, akiknek nemrég agyi sérülésük (például stroke) volt, és emiatt mindkét szemükben ugyanazon az oldalon kiesik a látótér egy része.
- Életkor
- 18 éves vagy idősebb
- Nem
- Nemtől függetlenül bárki részt vehet
- A betegség stádiuma
- Kevesebb mint 3 hónappal ezelőtti agyi sérülés, mindkét szemben azonos oldali látótérkieséssel (homonim látótérdefektus), amit szemész-ideggyógyászati (neuro-oftalmológiai) vizsgálat igazol
A részvétel fő kizáró okai
- A tér egyik oldalának figyelmen kívül hagyása (hemispatialis neglekt)
- Mindkét szem együttes mozgásának zavara
- Egyéb idegrendszeri betegség, például demencia
- Epilepszia vagy epilepszia a családban
- Beültetett fém eszköz, pacemaker, stimulátor vagy pumpa, illetve terhesség
Gépi kiolvasás: 2026. november 9.
Helyszínek itt: Olaszország
- Istituto Auxologico Italiano IRCCSMilan, OlaszországContact: Nadia Bolognini, PhDRésztvevőt keres
Kérdések a vizsgálat csapatának
- Milyen gyakran kell bejárnom, és egy-egy alkalom mennyi ideig tart?
- Megtérítik az utazási költséget?
- Megtarthatom a saját orvosomat?
- Mi történik, ha ki akarok lépni?
Contact the study team: see the registry record → Contacts and Locations
Oldal nyomtatása az orvosomnakA vizsgálat adatai
- Ki végzi
- Istituto Auxologico Italiano
- Azonosító
- NCT07358832
- A regiszteradat frissítve
- 2026. január 22.
- Eredeti leírás
Homonymous visual field defects (HVFDs) after acquired brain injuries affect daily life by impairing reading, navigation, and social activities, often impacting anxiety and depression. Spontaneous recovery is rare. Rehabilitation approaches include restorative treatments, which aim to expand the visual field through the stimulation of the so-called transition zone, and compensatory strategies, such as audio-visual training (AVT), which combines eye movement exercises with synchronized visual and auditory cues to train oculomotor scanning and overcome the visual field loss. Combining AVT with non-invasive brain stimulation, such as transcranial direct current stimulation (tDCS), may enhance recovery by promoting brain plasticity. Early evidence suggests that tDCS applied to the lesioned visual cortex during AVT can speed and stabilize improvements, potentially also restoring parts of the visual field. However, most studies on AVT have focused on chronic patients, whereas several clinical trials and international guidelines indicate that early treatment of HVFDs in the subacute phase can optimally exploit the window of maximal neural plasticity and prevent secondary degenerative processes, thereby maximizing visual recovery.A teljes eredeti leírásKevesebb
Homonymous visual field defects (HVFDs) after acquired brain injuries affect daily life by impairing reading, navigation, and social activities, often impacting anxiety and depression. Spontaneous recovery is rare. Rehabilitation approaches include restorative treatments, which aim to expand the visual field through the stimulation of the so-called transition zone, and compensatory strategies, such as audio-visual training (AVT), which combines eye movement exercises with synchronized visual and auditory cues to train oculomotor scanning and overcome the visual field loss. Combining AVT with non-invasive brain stimulation, such as transcranial direct current stimulation (tDCS), may enhance recovery by promoting brain plasticity. Early evidence suggests that tDCS applied to the lesioned visual cortex during AVT can speed and stabilize improvements, potentially also restoring parts of the visual field. However, most studies on AVT have focused on chronic patients, whereas several clinical trials and international guidelines indicate that early treatment of HVFDs in the subacute phase can optimally exploit the window of maximal neural plasticity and prevent secondary degenerative processes, thereby maximizing visual recovery.
In the present randomized clinical trial, we assess the efficacy of a multisensory audio-visual training (AVT) combined with tDCS in patients with subacute HVFDs after stroke (<3 months post-lesion). Participants are randomly assigned to two groups: AVT combined with real anodal tDCS applied to the lesioned occipital cortex (Group 1), or AVT combined with sham tDCS (Group 2).
The AVT requires participants to orient their gaze toward spatio-temporally congruent, cross-modal audio-visual stimuli (starting from a central fixation) and press a button as quickly as possible upon detecting the visual target. All stimuli are presented on 2mx2m panel embedded with 40 LEDs and loudspeakers (Diana, Casati, Melzi, Marzoli, et al., 2024). The training will be administered for 90 minutes daily over 10 consecutive days.
All participants underwent a neuro-ophthalmological evaluation and neuropsychological assessment of visuospatial functions before the beginning of the training (t0), at the end of the training (t1), at 2 months (t2) and after 1 year (t3).
Bevonási feltételek: Presence of subacute acquired brain injury (< 3 months) with HVFD according to Neurophthalmological evaluation.
Kizáró feltételek: Disorders of conjugated eye movements; Other neurological disorders (e.g., dementia); Exclusion criteria for brain stimulation (i.e., epilepsy or family history of epilepsy; implanted electrodes, stimulators, pacemakers, infusion pumps, or any implanted metal device; pregnancy); Presence of hemispatial neglect (indexed by pathological asymmetries on paper-and-pencil tests).