Active clinical trials for "Neuralgia"

Evolution of pain and neural injury will be evaluated at 2 years or longer after the onset of AHZ by multiple measures. Assessments at 2 years or longer will be compared to those collected during the first 6 months after HZ in order to test whether or not sensory function and cutaneous innervation continues to normalize beyond 6 months in subjects who recover from HZ without severe PHN.

The overall purpose of this project is to improve nurse skills regarding neuropathic pain (NP) assessment, treatment and referral practices through implementation of an evidence-based algorithm and to improve selected patient outcomes as a result of algorithm use.

The primary objective of this study is to identify osteoarthritis (OA) structural changes, as assessed by MRI, that best correlate with the presence of neuropathic pain (NP) using the PainDETECT questionnaire (PainDETECT ≥ 13) on a population of patients with OA of the knee experiencing moderate to severe pain (VAS ≥ 40 mm).

Previous research on intensive care unit (ICU) survivors shows that rehabilitation is challenging, because of patients experiences of disease related problems both under and after treatment. Approximately 20 % of patients die within hospital, up to 80% suffer from hallucinations and nightmares, deal with paranoiac experiences, chronic pain and other symptoms and disability (Angus et al 2004; De Letter et al 2001; Ely et al 2001; Nelson et al 2006; Van den Berghe et al 2001; Van den Berghe et al 2003) . A recent study shows that 28% of intensive care survivors have chronic pain that reduce their health related quality of life (Boyle et al 2004). The aim of this study is to perform a survey about prevalence of pain type, and which consequences this causes when it comes to function and quality of life up to 12 months after the ICU stay. What type of pain has ICU survivors and how do pain change over time, related to treatment/rehabilitation and the illness' development? What is the relationship between different pain characteristic, quality of life, anxiety, depression, fatigue, sleep and PTSD in these patients? What is these patients largest obstacle for good QoL after discharge from hospital?

Up to now, multiplanar reconstruction (MPR) has been widely used to detect the neurovascular compressions (NVC) on the patients with idiopathic trigeminal neuralgia (ITN). However, due to lack of stereoscopic vision, this traditional method sometimes cannot meet the requirement on identifying the existence and details of NVC, especially when the aberrant vessels turn out to be delicate veins. The three-dimensional analytic techniques, such as curved planar reconstruction (CPR) and magnetic resonance virtual endoscopy (MRVE), may be helpful to improve the sensitivity and specificity on the demonstration of NVC with stereo and dynamic views, so as to assist to design the surgical plan. Furthermore, the frequent finding of NVC on MRI studies of asymptomatic patients incited the creation of several strict criteria for the imaging diagnosis of NVC: the vessel must cross perpendicular to the long axis of the nerve, the nerve must be deviated or indented at the root entry zoon (REZ) by the vessel. Alternatively, morphological measurement of the nerve may correlate with the severity of facial pain due to atrophy of the nerve in most cases of ITN, and is likely secondary to the micro-structural abnormalities, such as axonal loss, demyelination, collagen deposition, etc. In this study, cross-sectional area (CSA) and volume (V) of the cisternal trigeminal nerve will be assessed to determine whether it can be a useful biomarker for predicting the degree of ITN.

Orofacial pain, specially neuropathic orofacial pain, is a challenge of diagnosis and treatment in orofacial pain. It is associated with sensory abnormalities.With increasing life expectancy of the population is more and more common to find individuals with chronic diseases however, there is little evidence about the influence of comorbidities and medications in use on sensory thresholds of neuropathic orofacial pain. Objective: to investigate the influence of comorbidities and medication in somatosensory function of patients with orofacial neuropathic pain compared to controls.In this case-control study, 336 orofacial pain patients and controls were recruited from the Hospital das Clinicas da Faculdade de Medicina da USP were investigated about comorbidities, use of chronic medication, pain characteristics and a detailed standardized protocol of somatosensory evaluation at the trigeminal territories for cold, warm, tactile, vibration, deep, superficial and electric pain thresholds.

To understand pain pathophysiology in terms of risk factors and protective mechanisms ranging from molecular pathways to societal impacts.

Neuromas are frequent after trauma and surgery, including amputation and can be identified by high-resolution ultrasound. The role of neuromas as the cause of neuropathic pain is uncertain. In this observational cohort study, the investigators wish to explore if the prevalence of neuromas are higher in patients with pain after peripheral nerve injury and amputation, than in patients with the same conditions but without pain.

In 1997, the global prevalence of diabetes was estimated to be 125 million and this has risen to around 400 million in 2015. In addition diabetes has a number of complications including heart disease, blindness, kidney failure and amputation. This represents a significant burden on healthcare services. Type 2 diabetes (T2D) is caused by a combination of genetic and environmental factors. The aim of GoDARTS is to recruit participants with T2D to a registry to provide a platform with which to investigate the genetics of T2D, its complications and response to treatment. This study will investigate the genetic basis of diabetic neuropathic pain.

Chronic postsurgical pain (CPSP) is defined by pain persisting longer than 2 months after surgery (1). Its incidence varies from 10 to 50 % in the literature (2). A high proportion of CPSP is neuropathic (CPSNP) (4). Postoperative pain is traditionally classified as nociceptive pain and the more intense is this pain on a numeric pain scale (NPS), higher are the risks of pain chronicization and the duration of the severe pain is longer (5,6). However, acute neuropathic pain (ANP) can be present in the postoperative setting. However, data on the prevalence of ANP immediately after surgery are scarce and no screening tool has been validated so far in this setting. Therefore, the first objective of this multicenter observational study is to prospectively describe the incidence of APSNP in a large population using the DN4 questionnaire. The second objective of our study is to confirm the hypothetic link between APSNP and CPSNP at 1 and 2 months after surgery in a large population. It is hypothesized that the systematic use of the DN4 questionnaire in postoperative could help detect patients at risk of CPSNP.