早期综合康复治疗对颅脑损伤患者神经功能恢复的疗效

目的分析早期综合康复治疗对颅脑损伤患者神经功能恢复的临床效果。方法将2011-07—2013-07于我院接受治疗的80例颅脑损伤患者为研究对象,按照随机数字法将其分为对照组与观察组各40例,对照组给予常规恢复训练治疗,观察组则在常规恢复训练的基础上加用针灸、电刺激、促醒治疗等综合康复治疗,对比2组患者神经功能恢复情况。结果(1)观察组评分升高幅度明显高于对照组,差异有统计学意义(P0.05);(2)观察组清醒时间明显短于对照组,且并发症发生率明显低于对照组,差异有统计学意义(P0.05)。结论在颅脑损伤患者的治疗中采用早期综合康复治疗方案,能缩短患者的神经功能恢复时间,提升其生活质量,值得推广。     

重型颅脑损伤患者精神障碍的临床分析

目的 探讨重型颅脑损伤后精神障碍的发生率、表现形式及影响因素。方法 以深圳市1999年10月1日至2000年9月30日因交通事故所致重型颅脑损伤的183例幸存者为研究对象,在颅脑损伤治疗后（平均6个月）,由2名精神科副主任医师根据中国精神疾病分类方案与诊断标准第2版修订本对这些伤者的精神状态进行评估。结果 （1）在183例中,罹患各类精神障碍者共165例,发生率为90．2％,其中智能障碍者为142例（77．6％）。（2）在183例,中度及其以上智力损伤者为29例（15．8％）。（3）有智力损伤组的脑干损伤、颅内血肿及≥3个脑叶损伤的比例高于无智力损伤组（P＜0．01）;伴有精神障碍组的平均年龄（P＜0．05）、脑干损伤（P＜0．05）及≥3个脑中损伤（P＜0．01）的比例高于无精神病性障碍组;有人格改变组额叶损伤、开颅清除血肿并减压治疗的比例高于无人格改变组（P＜0．01）。结论 重型颅脑损伤后精神障碍的发生率较高,应引起有关临床学科的重视。     

颅脑损伤合并精神障碍121例患者治疗回顾

颅脑损伤是一种常见的创伤，常遗留有不同程度的精神功能障碍，严重影响了患者的生存质量。本院神经外科自2001年开始，开展对121例颅脑损伤精神障碍患者进行相应的精神功能障碍治疗，取得了很好的效果，现总结如下。     

重型颅脑损伤患者的神经功能康复护理

根据GCS评分标准8分以下为重型颅脑损伤,作者从2006-01～2007-10共收集30例患者,入院后均经过脱水、降颅压、消炎、消肿、保脑、手术及预防并发症等治疗后,脑水肿消除,危险期已过,病情稳定后,通过对其知觉、言语、记忆、功能等方面的康复功能训练,在其原有的基础上回复到最佳功能状态,缩短了患者的住院治疗时间,使患者及家属看到治愈的希望,从而增强了战胜疾病的信心.     

利培酮与氯丙嗪治疗颅脑外伤所致精神障碍的疗效比较

作者对利培酮与氯丙嗪治疗颅脑外伤所致精神障碍的疗效及不良反应进行了比较分析,现报道如下：     

健康教育对颅脑损伤后精神障碍的效果观察

随着现代护理学的发展,健康教育成为贯穿整个护理过程中的重要环节,通过向患者及家属进行医学健康宣教,讲解病理原因、护理学、心理学、社会性等方面的知识,以此提高患者对疾病的认识,促进康复,提高生活质量[1]。我院对2010-03—2011-03收治颅脑损伤后精神障碍患者进行健康教育,患者和家属能够积极参与,临床效果显著,现报道如下。     

重型颅脑损伤后并发精神障碍临床分析

目的回顾分析重症颅脑损伤后并发精神障碍。方法总结我院1998-10~2006-10收治的重症颅脑损伤后并发精神障碍46例病人,分析伤情、受伤部位与并发的精神障碍间的关系。结果本组病人共出现4型精神障碍:躁狂型、抑郁型、精神分裂样型、痴呆型。损伤部位分别为:额叶损伤、颞叶损伤、胼胝体损伤、脑干损伤。损伤类型为:脑挫伤、弥漫性轴索损伤(DAI)、脑挫伤并发颅内血肿或并发脑疝。结论额叶脑挫伤或颞叶脑挫伤并发躁狂型精神障碍最多见,脑干损伤及DAI常出现痴呆型精神障碍。     

急性闭合性颅脑损伤康复早期精神障碍分析

目的分析急性闭合性颅脑康复早期的精神障碍。方法对1996年到1998年住院的43例急性闭合性颅脑损伤病人康复早期的精神障碍进行分析。结果颅脑损伤康复早期的精神障碍多继发于颞叶损伤,其次为额叶损伤。其临床分型可分为4型①躁狂型;②抑郁型;③痴呆型;④精神分裂型。其中以躁狂型。结论硬膜外血肿引起的精神障碍多为躁狂型,而硬膜下血肿及脑挫裂伤(包括脑内血肿)则以抑郁型及痴呆型为主。     

Recombinant human fibroblast growth factor-2 promotes nerve regeneration and functional recovery after mental nerve crush injury

Several studies have shown that fibroblast growth factor-2(FGF2) can directly affect axon regeneration after peripheral nerve damage. In this study, we performed sensory tests and histological analyses to study the effect of recombinant human FGF-2(rh FGF2) treatment on damaged mental nerves. The mental nerves of 6-week-old male Sprague-Dawley rats were crush-injured for 1 minute and then treated with 10 or 50 μg/m L rh FGF2 or PBS in crush injury area with a mini Osmotic pump. Sensory test using von Frey filaments at 1 week revealed the presence of sensory degeneration based on decreased gap score and increased difference score. However, at 2 weeks, the gap score and difference score were significantly rebounded in the mental nerve crush group treated with 10 μg/m L rh FGF2. Interestingly, treatment with 10 μg/m L rh FGF had a more obviously positive effect on the gap score than treatment with 50 μg/m L rh FGF2. In addition, retrograde neuronal tracing with Dil revealed a significant increase in nerve regeneration in the trigeminal ganglion at 2 and 4 weeks in the rh FGF2 groups(10 μg/m L and 50 μg/m L) than in the PBS group. The 10 μg/m L rh FGF2 group also showed an obviously robust regeneration in axon density in the mental nerve at 4 weeks. Our results demonstrate that 10 μg/m L rh FGF induces mental nerve regeneration and sensory recovery after mental nerve crush injury.     

ISP and PAP4 peptides promote motor functional recovery after peripheral nerve injury

Both intracellular sigma peptide(ISP) and phosphatase and tensin homolog agonist protein(PAP4) promote nerve regeneration and motor functional recovery after spinal cord injury. However, the role of these two small peptides in peripheral nerve injury remains unclear. A rat model of brachial plexus injury was established by crush of the C6 ventral root. The rats were then treated with subcutaneous injection of PAP4(497 μg/d, twice per day) or ISP(11 μg/d, once per day) near the injury site for 21 successive days. After ISP and PAP treatment, the survival of motoneurons was increased, the number of regenerated axons and neuromuscular junctions was increased, muscle atrophy was reduced, the electrical response of the motor units was enhanced and the motor function of the injured upper limbs was greatly improved in rats with brachial plexus injury. These findings suggest that ISP and PAP4 promote the recovery of motor function after peripheral nerve injury in rats. The animal care and experimental procedures were approved by the Laboratory Animal Ethics Committee of Jinan University of China(approval No. 20111008001) in 2011.     

Schwann cells seeded in acellular nerve grafts improve functional recovery

Introduction: This study evaluated whether Schwann cells (SCs) from different nerve sources transplanted into cold‐preserved acellular nerve grafts (CP‐ANGs) would improve functional regeneration compared with nerve isografts. Methods: SCs isolated and expanded from motor and sensory branches of rat femoral and sciatic nerves were seeded into 14mm CP‐ANGs. Growth factor expression, axonal regeneration, and functional recovery were evaluated in a 14‐mm rat sciatic injury model and compared with isografts. Results: At 14 days, motor or sensory‐derived SCs increased expression of growth factors in CP‐ANGs versus isografts. After 42 days, histomorphometric analysis found CP‐ANGs with SCs and isografts had similar numbers of regenerating nerve fibers. At 84 days, muscle force generation was similar for CP‐ANGs with SCs and isografts. SC source did not affect nerve fiber counts or muscle force generation. Conclusions: SCs transplanted into CP‐ANGs increase functional regeneration to isograft levels; however SC nerve source did not have an effect. Muscle Nerve 49 : 267–276, 2014     

Electrical stimulation accelerates nerve regeneration and functional recovery in delayed peripheral nerve injury in rats

The present study aims to investigate the potential of brief electrical stimulation (ES; 3 V, 20 Hz, 20 min) in improving functional recovery in delayed nerve injury repair (DNIR). The sciatic nerve of Sprague Dawley rats was transected, and the repair of nerve injury was delayed for different time durations (2, 4, 12 and 24 weeks). Brief depolarizing ES was applied to the proximal nerve stump when the transected nerve stumps were bridged with a hollow nerve conduit (5 mm in length) after delayed periods. We found that the diameter and number of regenerated axons, the thickness of myelin sheath, as well as the number of Fluoro‐Gold retrograde‐labeled motoneurons and sensory neurons were significantly increased by ES, suggesting that brief ES to proximal nerve stumps is capable of promoting nerve regeneration in DNIR with different delayed durations, with the longest duration of 24 weeks. In addition, the amplitude of compound muscle action potential (gastrocnemius muscle) and nerve conduction velocity were also enhanced, and gastrocnemius muscle atrophy was partially reversed by brief ES, indicating that brief ES to proximal nerve stump was able to improve functional recovery in DNIR. Furthermore, brief ES was capable of increasing brain‐derived neurotrophic factor (BDNF) expression in the spinal cord in DNIR, suggesting that BDNF‐mediated neurotrophin signaling might be one of the contributing factors to the beneficial effect of brief ES on DNIR. In conclusion, the present findings indicate the potential of using brief ES as a useful method to improve functional recovery for delayed repair of peripheral nerve lesions.     

Miconazole enhances nerve regeneration and functional recovery after sciatic nerve crush injury

Introduction: Improving axonal outgrowth and remyelination is crucial for peripheral nerve regeneration. Miconazole appears to enhance remyelination in the central nervous system. In this study we assess the effect of miconazole on axonal regeneration using a sciatic nerve crush injury model in rats. Methods: Fifty Sprague‐Dawley rats were divided into control and miconazole groups. Nerve regeneration and myelination were determined using histological and electrophysiological assessment. Evaluation of sensory and motor recovery was performed using the pinprick assay and sciatic functional index. The Cell Counting Kit‐8 assay and Western blotting were used to assess the proliferation and neurotrophic expression of RSC 96 Schwann cells. Results: Miconazole promoted axonal regrowth, increased myelinated nerve fibers, improved sensory recovery and walking behavior, enhanced stimulated amplitude and nerve conduction velocity, and elevated proliferation and neurotrophic expression of RSC 96 Schwann cells. Discussion: Miconazole was beneficial for nerve regeneration and functional recovery after peripheral nerve injury. Muscle Nerve 57 : 821–828, 2018     

Edaravone promotes functional recovery after mechanical peripheral nerve injury

Edaravone has been shown to reduce ischemia/reperfusion-induced peripheral nerve injury. However, the therapeutic effect of edaravone on peripheral nerve injury caused by mechanical factors is unknown. In the present study, we established a peripheral nerve injury model by crushing the sciatic nerve using hemostatic forceps, and then administered edaravone 3 mg/kg intraperitoneally. The sciatic functional index and superoxide dismutase activity of the sciatic nerve were increased, and the malondialdehyde level was decreased in animals in the edaravone group compared with those in the model group. Bcl-2 expression was increased, but Bax expression was decreased in anterior horn cells of the L4–6 spinal cord segments. These results indicated that edaravone has a neuroprotective effect following peripheral nerve injury caused by mechanical factors through alleviating free radical damage to cells and inhibiting lipid peroxidation, as well as regulating apoptosis-related protein expression.     

Experimental strategies to promote functional recovery after peripheral nerve injuries

The capacity of Schwann cells (SCs) in the peripheral nervous system to support axonal regeneration, in contrast to the oligodendrocytes in the central nervous system, has led to the misconception that peripheral nerve regeneration always restores function. Here, we consider how prolonged periods of time that injured neurons remain without targets during axonal regeneration (chronic axotomy) and that SCs in the distal nerve stumps remain chronically denervated (chronic denervation) progressively reduce the number of motoneurons that regenerate their axons. We demonstrate the effectiveness of low-dose, brain-derived neurotrophic and glial-derived neurotrophic factors to counteract the effects of chronic axotomy in promoting axonal regeneration. High-dose brain-derived neurotrophic factor (BDNF) on the other hand, acting through the p75 receptor, inhibits axonal regeneration and may be a factor in stopping regenerating axons from forming neuromuscular connections in skeletal muscle. The immunophilin, FK506, is also effective in promoting axonal regeneration after chronic axotomy. Chronic denervation of SCs (>1 month) severely deters axonal regeneration, although the few motor axons that do regenerate to reinnervate muscles become myelinated and form enlarged motor units in the reinnervated muscles. We found that in vitro incubation of chronically denervated SCs with transforming growth factor-beta re-established their growth-supportive phenotype in vivo, consistent with the idea that the interaction between invading macrophages and denervated SCs during Wallerian degeneration is essential to sustain axonal regeneration by promoting the growth-supportive SC phenotype. Finally, we consider the effectiveness of a brief period of 20 Hz electrical stimulation in promoting the regeneration of axons across the surgical gap after nerve repair.     

Risperidone in the treatment of behavioral disorders associated with autism in children and adolescents

This is a review of the clinical trials investigating the efficacy and safety of risperidone in the treatment of children with autistic spectrum disorders (ASD). The main clinical characteristics are impairment in social skills, communication difficulties, repetitive movements and behaviors, including stereotypies. Pharmacotherapy is mainly directed at the so-called target symptoms, ie, behavioral disorders and the various kinds of repetitions associated with ASD. According to the available data, risperidone seems to be moderately efficacious and safe for treating behavioral disorders. 4 double blind controlled trial. 3 reanalysis studies, and 12 open studies have documented the role of risperidone in children with ASD. Controlled studies have been thoroughly considered in this review.     

Serial assessment of functional recovery following nerve injury using implantable thin‐film wireless nerve stimulators

Introduction: Comprehensive assessment of the time course of functional recovery following peripheral nerve repair is critical for surgical management of peripheral nerve injuries. This study describes the design and implementation of a novel implantable wireless nerve stimulator capable of repeatedly interfacing peripheral nerve tissue and providing serial evaluation of functional recovery postoperatively. Methods: Thin‐film wireless implants were fabricated and subcutaneously implanted into Lewis rats. Wireless implants were used to serially stimulate rat sciatic nerve and assess functional recovery over 3 months following various nerve injuries. Results: Wireless stimulators demonstrated consistent performances over 3 months in vivo and successfully facilitated serial assessment of nerve and muscle function following nerve crush and nerve transection injuries. Conclusions: This study highlights the ability of implantable wireless nerve stimulators to provide a unique view into the time course of functional recovery in multiple motor targets. Muscle Nerve 54 : 1114–1119, 2016     

Characterization of tests of functional recovery after median and ulnar nerve injury and repair in the rat forelimb

The majority of human peripheral nerve injuries occur in the upper limb but the majority of studies in the rat are performed in the hindlimb. The upper and lower limbs differ in dexterity and control by supraspinal systems, so an upper limb model is a better representation of the common form of human injury. The purpose of this study was to further develop a rat model involving lesions of the median and ulnar nerves. To produce different degrees of misdirection of axons following nerve repair, we studied nerve crush, cut and repair of the two nerves, and cut and repair with crossover. Assessment of functional recovery was performed using a battery of motor and sensory tests: the staircase test, which assesses skilled forepaw reaching; grip strength meter, which assesses grip strength; pawprint analysis, which assesses toe spread and print length; horizontal ladder, which assesses forepaw placement during skilled locomotion; modified Randall-Selitto device and electronic von Frey probes, which assess fine touch; and cold probes, which assess temperature sensation. All tests revealed deficits in forepaw function after nerve injury except the print length and modified Randall-Selitto device. The time course of functional recovery was observed over 15 weeks. The final degree of functional recovery achieved was related to the misdirection of axon regeneration. The tests that most clearly revealed the effects of axon misdirection on function were the skilled paw reaching and grip strength tests. The lesion model and functional tests that we have developed will be useful in testing therapeutic strategies for treating the consequences of inaccurate axon regeneration following peripheral nerve injury in humans.