Active clinical trials for "Neuralgia"

Herpes zoster causes significant morbidity on over 1 million Americans every year. Although the majority of herpes zoster pain will self-resolve within one week, a significant proportion of patients will develop postherpetic neuralgia (PHN), which is characterized by debilitating pain that persists more than three months after the initial symptoms. Nerve blocks have been previously studied as a method to control herpes zoster pain in outpatient pain clinics and inpatient settings. This study aims to investigate whether emergency department ultrasound guided nerve blocks can prevent PHN and effectively treat acute herpes zoster pain.

A retrospective, monocentric, observational, descriptive, open study of a cohort of 149 patients from January 2014 to December 2015

The investigators will conduct a retrospective cohort study of patients who have undergone i.v. lidocaine infusions in the previous 2 years for suspected neuropathic pain of heterogeneous origin. The investigators hypothesize that the analgesic response to intravenous (i.v.) lidocaine will be bimodal with clear responders and clear non-responders. The investigators also hypothesize that more refractory patients, who have failed previous multimodal analgesic therapy, will be less likely to respond to i.v. lidocaine. The investigators goals are to report what percentage of patients will achieve relief, the degree of relief that can be expected, and identify the type of patients who will most likely to benefit from systemic lidocaine. The investigators secondary objective is to report the correlation between infusion rates and patterns of infusion rate adjustments with regard to efficacy and adverse effects.

Erector spinae plane block is new interfascial plane block, and can be applied to management of thoracic neuropathic pain syndromes. The target of needle is deeper(or anterior) to the erector spinae muscle. So it is more safe and simple technique than prior technique, thoracic paravertebral block. The aim of this study is the evaluation of erector spinae plane block comparison to prevertebra block.

The aim of the study is to establish the genetic, neurophysiological and psychological phenotype of the patients presenting a persistent neuropathic pain after surgery of the breast cancer, by comparing the neuropathic painful patients with the not painful and with the not neuropathic painful . This will be realized on a transverse cohort ("Seintinelle"cohort) and confirmed on a forward-looking longitudinal cohort.

Chronic obliterative arteriopathy of the inferior limbs is a frequent condition observed in diabetics. The later stages induce pain at rest and trophic disorders (ulcer, gangrene) that lead to chronic limb ischemia. Without possible surgical revascularization ,pain management and tissue healing are used to avoid amputation. Prevalence of diabetes is twice higher in Reunion Island than in metropolitan France. As a consequence, the rate co-morbobidities, such as chronic obliterative arteriopathy of the inferior limbs, is also increases. This study compares the efficiency of two analgesic treatments in diabetics with forefoot injuries.

The translation and cultural adaptation process of the English version of PDQ will be performed based on international guidelines. Subsequently, patients with neuropathic and nociceptive pain based on clinician's diagnoses will be recruited to complete three-type numeric rating scale (NRS) of pain followed by PDQ-M and SF-36 questionnaire. Patients' socio-demographic data and clinical characteristics will be reported using frequency for categorical variables and mean with standard deviation for continuous variables. Normality will be assessed using Shapiro Wilk test and histograms for continuous variables. Data will be compared between groups using chi-square test (for categorical variables) and t-test or Mann-Whitney's U test (for continuous variables). Suitability of PDQ-M data for factor analysis will be verified using the Bartlett's test of sphericity and the Kaiser-Mayer-Olkin (KMO) measure of sampling adequacy. Parallel analysis will performed to obtain the suitable factors. Construct validity will be investigated by exploratory factorial analysis (EFA) with varimax rotation. A factor loading of >0.40 will be used to determine the items for each factor. The internal consistency of the questionnaire will be assessed using Cronbach's alpha test. A p value of <0.05 is taken as statistically significant.

In breast cancer patients undergoing a mastectomy, the aim of this study is to evaluate if the magnesium administered for 6 weeks starting two weeks before the surgery induces a decrease of pain intensity one month post-mastectomy compared to the placebo group.

The most common cause of trigeminal neuralgia is considered to be a neurovascular contact. However, this etiological factor only seem to be present in half of the patient group. Thus the etiology of the other half is unknown. Gain-of function genetic mutations in voltage gated sodium channels have been hypothesized as playing a role in the etiology of trigeminal neuralgia but it has yet to be confirmed. In recent years gain-of-function mutations have been identified as a causative factor in other pain-diseases presenting with trigeminal neuralgia phenotypic similarities.

This study was set out 1) Evaluate the impact of Diabetic Peripheral Neuropathy (DPN) and DPN-P (Diabetic Peripheral Neuropathic Pain) on the overall Quality of Life (QoL) in elderly with Diabetic Mellitus (DM) and 2) Evaluate the association between cognition impairments and DM in the elderly, and the contributions of DPN and/or DPN-P