Carpal tunnel syndrome with paracoccidioidomycosis.
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ABSTRACT:
SUBMITTER: von Glehn F
PROVIDER: S-EPMC3414040 | biostudies-literature | 2012 Aug
REPOSITORIES: biostudies-literature
Publications
Carpal tunnel syndrome with paracoccidioidomycosis.
von Glehn Felipe F Damasceno Alfredo A Miotto Noelle N Naseri Estephania P EP Costallat Lilian T L LT França Marcondes C MC Nucci Anamarli A Ramos Marcelo C MC
Emerging infectious diseases 20120801 8
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Project description:ObjectiveTo investigate changes in the median nerve, retinaculum, and carpal tunnel on ultrasound after successful endoscopic carpal tunnel release (ECTR).Materials and methodsThis prospective study involved 37 wrists in 35 patients (5 male, 30 female; mean age ± standard deviation [SD], 56.9 ± 6.7 years) with primary carpal tunnel syndrome (CTS). An in-house developed scoring system (0-3) was used to gauge the clinical improvement after ECTR. Ultrasound was performed before ECTR, and at 1, 3, and 12 months post-ECTR. Changes in the median nerve, flexor retinaculum, and carpal tunnel morphology on ultrasound after ECTR were analyzed. Ultrasound parameters for different clinical improvement groups were compared.ResultsAll patients improved clinically after ECTR. The average clinical improvement score ± SD at 12 months post-ECTR was 2.2 ± 0.7. The median nerve cross-sectional area proximal and distal to the tunnel decreased at all time intervals post-ECTR but remained swollen compared to normal values. Serial changes in the median nerve caliber and retinacular bowing after ECTR were more pronounced at the tunnel outlet than at the tunnel inlet. The flexor retinaculum had reformed in 25 (68%) of 37 wrists after 12 months.ConclusionPostoperative changes in median nerve and retinaculum parameters were most pronounced at the tunnel outlet. Even in patients with clinical improvement after ECTR, nearly all ultrasound parameters remain abnormal at one year post-ECTR. These ultrasound parameters should not necessarily be relied upon to diagnose persistent CTS after ECTR.
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Project description:BackgroundGabapentinoids, including gabapentin and pregabalin, are commonly prescribed for neuropathic pain, but robust evidence recommends against using gabapentinoids for the treatment of carpal tunnel syndrome (CTS). We aimed to quantify national prescribing patterns of gabapentinoids for CTS.MethodsWe performed a retrospective population-based cohort study using claims data of gabapentinoid-naïve patients with a new diagnosis of CTS (2009-2016). Our primary outcome was a new gabapentinoid fill for CTS. We assessed temporal trends and characteristics associated with a gabapentinoid fill. Multivariable logistic regression was used to evaluate the association between patient-level factors and a new gabapentinoid fill for CTS.ResultsOf the 248 324 previously gabapentinoid-naïve patients with CTS, 9589 patients (4%) filled a gabapentinoid prescription. Sixty-one percent were prescribed by primary care providers or medical subspecialists. Patients with a history of neck pain (odds ratio [OR]: 1.31, 95% confidence interval [CI], 1.25-1.38), back pain (OR: 1.25, 95% CI, 1.20-1.31), arthritis (OR: 1.25, 95% CI, 1.18-1.31), and other pain conditions (OR: 1.26, 95% CI, 1.20-1.31) were associated with an increased odds of a new gabapentinoid fill. In addition, patients with a history of alcohol or substance use disorder were significantly associated with a new gabapentinoid prescription fill (OR: 1.33, 95% CI, 1.20-1.47).ConclusionsDespite evidence recommending against the use of gabapentinoids for CTS, gabapentinoids were frequently initiated among those with higher risk for misuse, including substance use disorders. Given the effectiveness of bracing or surgery for CTS and the risks associated with gabapentinoids, efforts aimed at disseminating evidence-based treatment for CTS are critical to minimize the harms of gabapentinoid misuse.
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Project description:Carpal tunnel syndrome (CTS) is a common peripheral mononeuropathy affecting up to 4% of the general population, typically women in late middle age. The incidence in patients with Fabry disease (FD) is unclear, but may affect 25% of patients with this X-linked lysosomal storage disease. We report three cases of CTS in young Caucasian male patients with classical FD, who developed CTS symptoms with supportive nerve conduction study (NCS) findings. Two patients had bilateral CTS and two had evidence of concurrent ulnar nerve neuropathy on NCS, suggesting a systemic process contributed to nerve compression. All were receiving enzyme replacement therapy (ERT) and had a moderate burden of FD complications. It is possible that an increase in connective tissue in the intracarpal canal in FD patients may be incited by injury to fibroblasts, via either accumulation of globotriaosylceramide (GL3) or local ischaemia through endothelial injury. The former hypothesis may be a more plausible explanation for the development of CTS, as histology of the flexor retinaculae from our patients has demonstrated fibroblasts with characteristic vacuolation and excessive myxomatous stroma, despite endothelial clearance of GL3 in these patients receiving ERT. CTS should not be overlooked in FD patients and young patients presenting with CTS should be evaluated for an underlying systemic or genetic disorder. Surgical carpal tunnel decompression was effective in our patients, already troubled by long-standing acroparesthesia, in providing sustained relief of symptoms.
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Project description:ObjectiveEndoscopic carpal tunnel release has become increasingly popular and has shown the advantage of early recovery of hand function with minimal morbidity. In this systematic review, we aimed to summarize the currently available data and describe the reported advantages and disadvantages of endoscopic carpal tunnel surgery for treating carpal tunnel syndrome.MethodsIn this study, we followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses, which is a set of reporting requirements for systematic reviews and meta-analyses. The search strategy with MeSH terms was "MeSH (carpal tunnel syndrome) AND (endoscopic)" Filters: in the last 5 years, English-on February 27th, 2022. A total of 131 articles fulfilled the first screening criteria. A detailed analysis of those articles identified 39 that matched the criteria, of which 14 were considered appropriate for this analysis after applying the complete inclusion and exclusion criteria.ResultsA total of 14 studies met the eligibility criteria. Analysis of those studies found that all types of portals in endoscopic carpal tunnel release reduced postoperative pain at a short-term follow-up. There was no evidence to suggest the superiority of the single- or two-portal techniques in terms of outcomes. In terms of pain relief, symptom resolution, patient satisfaction, duration to return to work, and adverse events, this early use of endoscopic carpal tunnel release produced satisfactory outcomes. Further studies comparing the number of portals are needed.ConclusionEndoscopic carpal tunnel surgery for treating carpal tunnel syndrome is effective and both single- and dual-portal techniques provide advantages in terms of early recovery and minimal morbidity.
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Project description:Carpal tunnel syndrome (CTS) is the most common peripheral nerve entrapment syndrome, affecting a large proportion of the general population. Genetic susceptibility has been implicated in CTS, but the causative genes remain elusive. Here, we report the identification of two mutations in cartilage oligomeric matrix protein (COMP) that segregate with CTS in two large families with or without multiple epiphyseal dysplasia (MED). Both mutations impair the secretion of COMP by tenocytes, but the mutation associated with MED also perturbs its secretion in chondrocytes. Further functional characterization of the CTS-specific mutation reveals similar histological and molecular changes of tendons/ligaments in patients' biopsies and the mouse models. The mutant COMP fails to oligomerize properly and is trapped in the ER, resulting in ER stress-induced unfolded protein response and cell death, leading to inflammation, progressive fibrosis and cell composition change in tendons/ligaments. The extracellular matrix (ECM) organization is also altered. Our studies uncover a previously unrecognized mechanism in CTS pathogenesis.
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