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Patients with spinal cord injury (SCI) may experience several types of chronic pain, including peripheral and central neuropathic pain, pain secondary to overuse, painful muscle spasms, and visceral pain. An accurate classification of the patient's pain is important for choosing the optimal treatment strategy. In particular, neuropathic pain appears to be persistent despite various treatment attempts. In recent years, we have gained increasing knowledge of SCI pain mechanisms from experimental models and clinical studies. Nevertheless, treatment remains difficult and inadequate. In line with the recommendations for peripheral neuropathic pain, evidence from randomized controlled treatment trials suggests that tricyclic antidepressants and pregabalin are first-line treatments. This review highlights the diagnosis and classification of SCI pain and recent improvements in the understanding of underlying mechanisms, and provides an update on treatment of SCI pain. 相似文献
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Simon Haroutounian Lone Nikolajsen Thomas F. Bendtsen Nanna B. Finnerup Anders D. Kristensen Jørgen B. Hasselstrøm Troels S. Jensen 《Pain》2014
Central sensitization after peripheral nerve injury may result in ectopic neuronal activity in the spinal cord dorsal horn, implying a potential autonomous pain-generating mechanism. This study used peripheral nerve blockade and systemic lidocaine administration, with detailed somatosensory assessment, to determine the contribution of primary afferent input in maintaining peripheral neuropathic pain. Fourteen patients with neuropathic pain (7 with unilateral foot pain due to peripheral nerve injury and 7 with bilateral pain in the feet due to distal polyneuropathy) underwent comprehensive characterization of somatosensory function by quantitative sensory testing. Patients were then administered an ultrasound-guided peripheral nerve block with lidocaine and intravenous lidocaine infusion in randomized order. The effect of these interventions on spontaneous pain intensity and on evoked cold, warm, pinprick, and brush responses was assessed at each session. All patients had sensory disturbances at baseline. The peripheral nerve block resulted in a complete abolition of ipsilateral pain within 10 min (median) in all patients, with lidocaine plasma concentrations being too low to account for a systemic effect of the drug. Intravenous lidocaine infusion reduced the spontaneous pain by 45.5% (±31.7%), and it reduced mechanical and thermal hypersensitivity in most patients who displayed such signs. However, the improvement in evoked hypersensitivity was not related to the effect of the drug on spontaneous pain intensity. This study demonstrated that regardless of the individual somatosensory phenotype and signs of central sensitization, primary afferent input is critical for maintaining neuropathic pain in peripheral nerve injury and distal polyneuropathy. 相似文献
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Emil Peters Mustapha Itani Alexander G. Kristensen Astrid Juhl Terkelsen Thomas Krøigård Hatice Tankisi Troels S. Jensen Nanna B. Finnerup Sandra Sif Gylfadottir 《Journal of the peripheral nervous system : JPNS》2023,28(3):450-459
Background and Aims
Cardiovascular autonomic neuropathy (CAN) in patients with diabetes is associated with poor prognosis. We aimed to assess signs of CAN and autonomic symptoms and to investigate the impact of sensorimotor neuropathy on CAN by examining type 2 diabetes patients with (DPN [distal sensorimotor polyneuropathy]) and without distal sensorimotor polyneuropathy (noDPN) and healthy controls (HC). Secondarily, we aimed to describe the characteristics of patients with CAN.Methods
A population of 374 subjects from a previously described cohort of the Danish Centre for Strategic Research in Type 2 Diabetes (DD2) were included. Subjects were examined with the Vagus™ device for the diagnosis of CAN, where two or more abnormal cardiovascular autonomic reflex tests indicate definite CAN. Autonomic symptoms were assessed with Composite Autonomic Symptom Score 31 (COMPASS 31) questionnaire. DPN was defined according to the Toronto consensus panel definition.Results
Definite CAN was present in 22% with DPN, 7% without DPN and 3% of HC, and 91% of patients with definite CAN had DPN. Patients with DPN and definite CAN reported higher COMPASS 31 scores compared to patients with noDPN (20.0 vs. 8.3, p < 0.001) and no CAN (22.1 vs. 12.3, p = 0.01). CAN was associated with HbA1c and age in a multivariate logistic regression analysis but was not associated with IEFND or triglycerides.Interpretation
One in five patients with DPN have CAN and specific CAN characteristics may help identify patients at risk for developing this severe diabetic complication. Autonomic symptoms were strongly associated with having both DPN and CAN, but too unspecific for diagnosing CAN. 相似文献118.
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Release of cytokines, soluble cytokine receptors, and interleukin-1 receptor antagonist after intravenous immunoglobulin administration in vivo 总被引:6,自引:3,他引:6
Aukrust P; Froland SS; Liabakk NB; Muller F; Nordoy I; Haug C; Espevik T 《Blood》1994,84(7):2136-2143
We investigated the in vivo effects of one bolus injection (400 mg/kg) of intravenous immunoglobulin (IVIG) on a number of cytokines, soluble cytokine receptors, and interleukin-1 receptor antagonist (IL-1Ra) in plasma in 12 patients with primary hypogammaglobulinemia. A significant and rapid increase in plasma levels of IL-6, IL-8, and tumor necrosis factor alpha (TNF alpha) was seen within 1 hour after IVIG infusion. This increase was accompanied by a more prolonged elevation in levels of both types of soluble TNF receptors (sTNFRs), which remained elevated throughout the study period (44 hours) although they reached peak levels within 1 hour. After an initial increase in the ratio between TNF alpha and sTNFRs, this ratio decreased to values significantly lower than baseline values 20 and 44 hours postinfusion with approximately 600-fold molar excess of sTNFRs to TNF alpha (trimer). Although only a modest but statistically significant increase in plasma levels of IL-1 beta was seen, IVIG infusion was followed by a marked increase in plasma levels of IL-1Ra with 1,000-fold molar excess of IL-1Ra to IL-1 beta in some patients. The demonstrated effects of IVIG infusion on the cytokine network, particularly the induction of IL- 1Ra and sTNFRs release, might be important for the therapeutic effects of IVIG in several immune-mediated disorders. 相似文献
120.
Yajnesh Kidiyoor MBBS Post Graduate Student Vinod C. Nayak MD Assistant Professor Vasudha Devi MD Assistant Professor Shankar M. Bakkannavar MD Assistant Professor G. Pradeep Kumar MD Professor Head Ritesh G. Menezes MD Diplomate NB Assistant Professor 《Journal of Forensic and Legal Medicine》2009,16(8):472-474
Organophosphorus poisoning occurs very commonly in southern India where farmers form a significant proportion of the population who commonly use organophosphorus compounds like parathion as insecticides. Awareness of the complications caused by parathion poisoning is essential for proper monitoring and treatment. We report a case of suicidal parathion poisoning in a farmer who was treated with atropine and oximes. He subsequently developed myocardial infarction, to the treatment of which, he showed no response and succumbed. In conclusion, myocardial infarction is a rare complication of parathion poisoning. Awareness of this complication of parathion poisoning, proper monitoring and treatment could prevent fatalities. 相似文献