View clinical trials related to Dissociative Disorders.
Filter by:Functional Neurological Disorder (FND/ Conversion Disorder) is a highly prevalent and disabling neuropsychiatric condition. Motor FND symptoms include Nonepileptic Seizures, Functional Movement Disorders and Functional Weakness. Clinical research across these motor FND subtypes, including research studies from the candidate's laboratory, suggest that these populations share many clinical and phenotypic similarities that warrant increased research integration. Furthermore, despite the prevalence of motor FND, little is known about the underlying pathophysiology of this condition, which is a prerequisite for the development of biologically informed prognostic and treatment response biomarkers. Across 3 published neurobiologically focused articles, the candidate proposed a framework through which to conceptualize motor FND. It is suggested that motor FND develops in the context of structural and functional alterations in neurocircuits mediating emotion awareness/expression, bodily awareness, viscerosomatic processing and behavioral regulation. The overall goal of this project is to comprehensively investigate structural and functional magnetic resonance imaging (MRI) biomarkers of prognosis across motor FND. Multimodal structural and functional MRI techniques (including voxel-based morphometry, cortical thickness, resting-state functional connectivity and diffusion tensor imaging tractography) will be used to systemically probe brain-prognosis relationships. Novel aspects of this proposal include the study of the full spectrum of motor FND, consistent with a trans-diagnostic approach.
This study evaluates the surgical outcomes of inverted internal limiting membrane insertion combined with air tamponade in the treatment of macular hole retinal detachment (MHRD) in high myopia, and also to compare the treatment efficacy and safety between different surgical approaches of MHRD
Uncontrolled single site non randomized non interventional study to determine the safety and efficacy of intravitreal injections of Aflibercept in patients with recent vision loss due to retinal pigment epithelial detachment secondary to AMD
Photoreceptor apoptosis is the basis for permanent visual loss in a number of retinal disorders including age-related macular degeneration (AMD) and retinal detachment (RD). Thus, despite tremendous advances in vitreoretinal surgery and management of rhegmatogenous RD leading to a primary reattachment rate over 95%, some patients show poor visual recovery because of photoreceptor apoptosis. Physiologically, microglial cells (resident macrophages) are present only in the inner retina. The subretinal space, located between the retinal pigment epithelium (RPE) and the photoreceptor outer segments (POS), is devoid of all mononuclear phagocytes and form a zone of immune privilege. In AMD, several studies showed a strong association between subretinal mononuclear phagocytes infiltration and advanced forms of AMD. Experimental work in mice suggest that this infiltration plays an important role in the pathogenesis of this condition by producing inflammatory cytokines. RD-induced photoreceptor apoptosis might result from similar mechanisms. The aim of this study is to determine the cytokine profile in vitreous samples from patients with RD and to compare it with those from control patients with macular hole.
The investigators compared the incidence of trimming-induced retinal breaks, retinal redetachment rate, and final LogMAR BCVA; between scleral self-indentation and non-indentation during chandelier-assisted peripheral vitrectomy under air for eyes with primary retinal detachment. Self-indentation enables complete trimming of the vitreous base without causing iatrogenic retinal breaks, with a higher retinal reattachment rate, and with less need for chandelier shift than with non-indentation approach.
The aim of this study is to report outcomes of pars plana vitrectomy (PPV) in pediatric retinal detachment (RD) accompanied with proliferative vitreoretinopathy (PVR) as well as complications and factors influencing the final anatomical and functional results. This is retrospective consecutive case series of 14 eyes treated with primary PPV for RD repair. Average postoperative follow-up period is 34 months.
Individuals operated for rhegmatogenous retinal detachment will be prospectively evaluated for postoperative retinal shift. Fundus autofluorescence will be used to evaluate retinal shift that will be correlated to visual acuity, metamorphopsia, aniseikonia, and stereopsis.
From July 2015 to December 2015, clinical record of 8 consecutive cases of macular hole with retinal detachment in high myopia treated with combined inverted and free ILM flap insertion into the hole were retrospectively reviewed. The anatomical and function outcomes were assessed.
Phacoemulsification with implantation of posterior chamber lenses represents the gold standard of care for patients needing lens surgery, but there is an increased risk of developing pseudophakic retinal detachment after surgery. Especially myopic patients have an even higher risk of pseudophakic retinal detachment compared to the general population. The aim of this multicenter study is to document the presence and/or post-operative development of posterior vitreous detachment (PVD) and to assess its influence on the incidence of retinal detachment (RD) in myopes in a time period of three and five years after lens surgery. 618 eyes of patients scheduled for regular lens surgery will be included, defined by an axial length of 25.0 mm or more. To examine the vitreous status, all patients will receive a comprehensive eye examination pre-operatively, including funduscopy with assessment of a Weiss ring and optical coherence tomography (OCT). Patients will be divided into two groups, group A with pre-operative complete PVD and group B with no/partial PVD. Group A will be invited for one follow-up visit (two months post-operatively) followed up by telephone interviews at one, two, three and five years after surgery to determine occurrence of pseudophakic retinal detachment. Group B will be invited for follow -up examinations at two months, six months and one year after surgery to document occurrence of PVD (if a PVD is present at one of the follow-ups, no more visits are necessary). Two, three and five years after surgery, all patients from group B will be interviewed by telephone, as in group A, to document the occurrence of pseudophakic retinal detachment. In the recent literature the association between the occurrence of PVD pre-/post-operative and RD after lens surgery is well documented but not described for myopic patients. The results of this multicenter study should help to tackle the problem of RD prediction in myopic patients depending on their pre-operative vitreous status, especially in the setting of refractive lens exchange.
The study is collecting data along with other academic institutions regarding the accuracy of ocular ultrasound in diagnosing retinal detachment.