Muscle Hypertonia

肌张力增高
  • 文章类型: Journal Article
    目的:鞘内注射巴氯芬(ITB)是治疗儿童高张力的有效方法,涉及泵和导管系统的植入。ITB的最高浓度在导管尖端。导管尖端位置最常见的是在腰椎或胸椎内。由于担心通气不足和肺炎,传统上避免了宫颈尖端位置;但是,与胸部或腰椎放置相比,颈椎的这些并发症尚未得到可靠证实。一些研究表明,宫颈ITB位置更好地治疗上肢高渗症。描述宫颈ITB对高渗症的安全性和有效性的数据有限。作者提出了一个单机构回顾性病例系列,强调了使用宫颈ITB位置治疗高张力的安全性和有效性。
    方法:对2022年4月至2023年10月期间连续给药宫颈ITB的儿童进行回顾性数据分析。不可改变的危险因素,临床变量,手术特征,并收集不良结局.
    结果:本研究包括25名患者(8名女性)。植入时的平均年龄为12.4岁,平均手术时间为90分钟。平均Barry-Albright肌张力障碍量表评分下降9.5分(p=0.01)。上肢改良Ashworth量表的平均总评分下降了2.14分(p=0.04),下肢下降4.98分(p<0.01)。每个患者(4%)有感染和巴氯芬毒性。两名患者(8%)有呼吸抑制,需要持续气道正压通气。没有肺炎或伤口开裂的发生率。
    结论:ITB的宫颈导管尖端位置是安全的,有效控制音调,应考虑用于治疗高张力症。需要进行更大的研究和更长时间的随访,以进一步确定这些患者的上限给药安全性以及长期功能益处。
    Intrathecal baclofen (ITB) is an effective treatment for hypertonia in children involving the implantation of a pump and catheter system. The highest concentration of ITB is at the catheter tip. The catheter tip location is most commonly within the lumbar or thoracic spine. The cervical tip location has traditionally been avoided because of concerns of hypoventilation and pneumonia; however, these complications in cervical compared with thoracic or lumbar placement have not been reliably proven. Some studies have suggested that cervical ITB location better treats upper-extremity hypertonia. There are limited data describing the safety and efficacy of cervical ITB on hypertonia. The authors present a single-institution retrospective case series highlighting the safety and efficacy of using cervical ITB location for the treatment of hypertonia.
    Retrospective data analysis was performed for children who underwent continuous dosing cervical ITB between April 2022 and October 2023. Nonmodifiable risk factors, clinical variables, operative characteristics, and adverse outcomes were collected.
    This study included 25 patients (8 female). The mean age at implantation was 12.4 years, and the mean operative duration was 90 minutes. The mean Barry-Albright Dystonia Scale score decreased by 9.5 points (p = 0.01). The mean aggregated modified Ashworth scale score in the upper extremities decreased by 2.14 points (p = 0.04), and that in the lower extremities decreased by 4.98 points (p < 0.01). One patient each (4%) had infection and baclofen toxicity. Two patients (8%) had respiratory depression requiring continuous positive airway pressure. There was no incidence of pneumonia or wound dehiscence.
    The cervical catheter tip location for ITB is safe, is effective to control tone, and should be considered for the treatment of hypertonia. Larger studies with longer follow-up are necessary to further determine upper-limit dosing safety along with long-term functional benefits in these patients.
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  • 文章类型: Journal Article
    目前尚无脊髓损伤(SCI)后过度肌张力的按需和局部治疗。这里,我们检查了中胸患者腿部高张力的减少,使用商用经皮电刺激器(TES)以50或150Hz的频率施加到下背部,以及可能的机制使腿部张力双侧降低。在没有TES的情况下和在TES期间,将阴极(T11-L2)和阳极(L3-L5)放置在脊柱上方(中线,MID)或中线左侧10厘米(横向,LAT)仅对活跃的底层皮肤和肌肉传入,用摆锤测试同时测量两条腿。在与应用的LATTES相对的右腿中检查了本体感觉(H反射)和皮肤神经反射(CMR)传入介导的脊柱反射。双腿的高张力消失,但仅在胸腰椎TES期间消失,甚至在LATTES期间。音调的明显减少反映在从完全伸展位置释放后,两个小腿首先下降到更大的距离。在MID和LATTES期间增加了172.8%和94.2%,分别,与没有TES相比。MID和LAT(左)TES都增加了H反射,但减少了第一次爆发,并延长了随后爆发的时间,在右腿的皮肤神经反射中。胸腰椎TES是一种有前途的方法来减少腿部高张力的慢性,运动性完全SCI而不激活脊髓结构,并且可能通过促进本体感受输入而起作用,从而激活具有双侧投射的兴奋性中间神经元,进而招募复发性抑制性神经元。NEW&NOTEWORTHY我们提出了概念证明,下背部的表面刺激可以减少运动完全的参与者的严重腿部过度紧张,胸椎脊髓损伤(SCI),但仅在施加刺激期间。我们建议胸腰椎经皮电刺激(TES)激活皮肤和肌肉传入神经可能会招募具有双侧投射的兴奋性脊髓中间神经元,从而招募复发性抑制网络,以按需抑制正在进行的非自愿运动神经元活动。
    On demand and localized treatment for excessive muscle tone after spinal cord injury (SCI) is currently not available. Here, we examine the reduction in leg hypertonus in a person with mid-thoracic, motor complete SCI using a commercial transcutaneous electrical stimulator (TES) applied at 50 or 150 Hz to the lower back and the possible mechanisms producing this bilateral reduction in leg tone. Hypertonus of knee extensors without and during TES, with both cathode (T11-L2) and anode (L3-L5) placed over the spinal column (midline, MID) or 10 cm to the left of midline (lateral, LAT) to only active underlying skin and muscle afferents, was simultaneously measured in both legs with the pendulum test. Spinal reflexes mediated by proprioceptive (H-reflex) and cutaneomuscular reflex (CMR) afferents were examined in the right leg opposite to the applied LAT TES. Hypertonus disappeared in both legs but only during thoracolumbar TES, and even during LAT TES. The marked reduction in tone was reflected in the greater distance both lower legs first dropped to after being released from a fully extended position, increasing by 172.8% and 94.2% during MID and LAT TES, respectively, compared with without TES. Both MID and LAT (left) TES increased H-reflexes but decreased the first burst, and lengthened the onset of subsequent bursts, in the cutaneomuscular reflex of the right leg. Thoracolumbar TES is a promising method to decrease leg hypertonus in chronic, motor complete SCI without activating spinal cord structures and may work by facilitating proprioceptive inputs that activate excitatory interneurons with bilateral projections that in turn recruit recurrent inhibitory neurons.NEW & NOTEWORTHY We present proof of concept that surface stimulation of the lower back can reduce severe leg hypertonus in a participant with motor complete, thoracic spinal cord injury (SCI) but only during the applied stimulation. We propose that activation of skin and muscle afferents from thoracolumbar transcutaneous electrical stimulation (TES) may recruit excitatory spinal interneurons with bilateral projections that in turn recruit recurrent inhibitory networks to provide on demand suppression of ongoing involuntary motoneuron activity.
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  • 文章类型: Case Reports
    鞘内注射巴氯芬(ITB)治疗,对于不合适的常规痉挛药物候选药物,是口服途径给药的优选方法。由于其生物利用度提高,ITB确保在目标地点更有效地交付。
    目前缺乏关于使用ITB治疗治疗痉挛型肌张力障碍非卧床患者的确凿证据。ITB泵植入前,患者通常接受ITB推注试验,以排除潜在的不良反应,并验证对高渗问题的治疗效果.在这份报告中,我们重点介绍一例痉挛性肌张力障碍,特别关注在ITB注射试验后在改良Ashworth量表(MAS)评分和步态模式方面均显示显著改善的非卧床患者.
    本病例报告概述了一名67岁男性的病史,诊断为左侧偏瘫和痉挛性肌张力障碍,由于他的右丘脑颅内出血的第二次发作。开始了ITB注射试验,因为患者不适合继续注射肉毒杆菌毒素和口服药物。这是由于上肢和下肢持续发生痉挛性肌张力障碍。患者接受了为期四天的ITB注射试验,剂量逐渐增加,改善MAS评分和步态参数,包括节奏,步长,步进时间,步幅长度,步伐时间增加了。特别是,运动学步态分析表明,在僵硬的膝关节步态模式下,在摆动阶段膝关节屈曲增加有了显着改善。这些结果表明痉挛相关症状逐渐减少,表明ITB注射试验的积极作用。患者最终接受了ITB泵植入。
    在这位患有痉挛型肌张力障碍的中风后患者中,ITB治疗已证明有效和实质性的痉挛管理,随着步态模式的改善。
    UNASSIGNED: Intrathecal baclofen (ITB) therapy, a viable alternative for unsuitable candidates of conventional spasticity medications, is a preferred method of administration over the oral route. Owing to its enhanced bioavailability, ITB ensures a more effective delivery at the target site.
    UNASSIGNED: There is a lack of conclusive evidence regarding the use of ITB treatment in managing ambulatory patients with spastic dystonia. Before ITB pump implantation, patients commonly undergo an ITB bolus injection trial to rule out potential adverse reactions and verify the therapeutic effects on hypertonic issues. In this report, we highlight a case of spastic dystonia, particularly focusing on an ambulatory patient who demonstrated significant improvement in both the modified Ashworth scale (MAS) score and gait pattern following the ITB injection trial.
    UNASSIGNED: This case report outlines the medical history of a 67-year-old male diagnosed with left-side hemiplegia and spastic dystonia, resulting from his second episode of intracranial hemorrhage in the right thalamus. An ITB injection trial was initiated because the patient was not suitable for continued botulinum toxin injections and oral medications. This was due to the persistent occurrence of spastic dystonia in both the upper and lower extremities. The patient underwent a four-day ITB injection trial with progressively increasing doses, resulting in improved MAS scores and gait parameters, including cadence, step length, step time, stride length, and stride time were increased. Particularly, kinematic gait analysis demonstrates a substantial improvement of increased knee flexion in the swing phase in stiff knee gait pattern. These findings indicated a gradual reduction in spasticity-related symptoms, signifying the positive effect of the ITB injection trial. The patient eventually received an ITB pump implantation.
    UNASSIGNED: In this post-stroke patient with spastic dystonia, ITB therapy has demonstrated effective and substantial management of spasticity, along with improvement in gait patterns.
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  • 文章类型: Case Reports
    一名9个月大的女婴出现呕吐和腹泻的体格检查显示右上腹部有压痛,腹部肌肉张力升高。腹部超声检查发现肝脏右叶内不规则的低回声区域。尽管随后的增强CT检查发现了明确的病变,表现出内部局灶性钙化和延迟的异质增强。随后,她接受了手术切除,术后病理显示上皮样血管内皮瘤和海绵状血管瘤。免疫组织化学显示CD34,CD31,FLI-1和F-VIII的阳性表达。病理诊断为复合血管内皮瘤(CHE)。
    A physical examination of a 9-month-old female infant presenting with vomiting and diarrhea revealed tenderness in the right upper abdomen and heightened abdominal muscle tone. Abdominal ultrasonography identified an irregular hypoechoic area within the right lobe of the liver. While a subsequent enhanced CT examination disclosed a well-defined lesion exhibiting internal focal calcification and delayed heterogeneous enhancement. Subsequently, she underwent surgical resection, and postoperative pathology revealed areas of epithelioid hemangioendothelioma and cavernous hemangioma. Immunohistochemistry demonstrated positive expression of CD34, CD31, FLI-1, and F-VIII. The pathologic diagnosis was confirmed as composite hemangioendothelioma (CHE).
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  • 文章类型: Journal Article
    目的:据作者所知,没有关于在多发性硬化症(MS)患者中使用等速阻力训练来管理踝部屈肌痉挛性高张力的数据.这项概念验证研究的目的是探索同心收缩对痉挛相关的被动运动阻力的可行性和影响,力量,患有多发性硬化症和踝部屈肌痉挛的人的活动能力。
    方法:在这个前测/后测案例系列中,5名MS患者(平均年龄=53.6[SD=8.8]岁;中位扩展残疾状态量表评分=5;改良的Ashworth量表范围=1-4)接受了6周的等速阻力训练。干预前后,评估了以下结果:被动机器人动员期间的平均峰值扭矩,等距强度,来自痉挛肌肉的表面肌电图(sEMG),完成10米步行测试和定时“Up&Go”测试的时间。标准化效应大小用于在个体水平上测试前测和后测效应。还进行了组水平分析。
    结果:培训结束后,在以每秒150度的速度进行被动运动期间,足底屈肌记录的平均峰值扭矩在除1例之外的所有参与者中至少降低了1SD,在组水平上显著降低了23.8%.相反,未检测到sEMG活性的变化.小组水平分析显示,经过训练的足底屈肌的最大强度显着增加(31.4%)。4名参与者的快速步行速度增加,完成定时“Up&Go”测试的时间减少,尽管在组级别上并不重要。
    结论:等速阻力训练在患有MS和踝屈肌痉挛的患者中被证明是安全可行的。在没有sEMG变化的情况下,观察到的痉挛plant屈肌对被动运动的抵抗力降低可能表明训练的机械效应而不是神经效应。
    结论:基于这些初步发现,等速阻力训练不会加剧患有MS和踝屈肌痉挛的人的高张力,可以安全地用于治疗该人群的肌肉无力。
    To the best of the authors\' knowledge, no data are available about the use of isokinetic resistance training for managing ankle plantarflexor spastic hypertonia in people with multiple sclerosis (MS). The aim of this proof-of-concept study was to explore the feasibility and effects of concentric contractions on spasticity-related resistance to passive motion, strength, and mobility in people with MS and ankle plantarflexor spasticity.
    In this pretest/posttest case series, 5 people with MS (mean age = 53.6 [SD = 8.8] years; median Expanded Disability Status Scale score = 5; Modified Ashworth Scale range = 1-4) received 6 weeks of isokinetic resistance training of the spastic plantarflexors. Before and after the intervention, the following outcomes were assessed: average peak torque during passive robotic mobilization, isometric strength, surface electromyography (sEMG) from the spastic muscles, time to complete the 10-m Walk Test, and the Timed \"Up & Go\" Test. The standardized effect size was used to test pretest and posttest effects at the individual level. Group-level analyses were also performed.
    Following the training, the average peak torque recorded from the plantarflexors during passive motion at a velocity of 150 degrees per second was found to be decreased by at least 1 SD in all participants but 1, with a significant reduction at the group level of 23.8%. Conversely, no changes in sEMG activity were detected. Group-level analyses revealed that the maximal strength of the trained plantarflexors increased significantly (31.4%). Fast walking speed increased and time to complete the Timed \"Up & Go\" Test decreased in 4 participants, although not significantly at the group level.
    Isokinetic resistance training proved safe and feasible in people who had MS and ankle plantarflexor spasticity. The observed reductions in resistance to passive motion from the spastic plantarflexors in the absence of sEMG changes might suggest a mechanical rather than a neural effect of the training.
    Based on these preliminary findings, isokinetic resistance training does not exacerbate hypertonia in people with MS and ankle plantarflexor spasticity and could be safely used to manage muscle weakness in this population.
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  • 文章类型: Case Reports
    新生儿Schwartz-Jampel综合征II型是一种罕见且严重的遗传性疾病。与婴儿期的古典外观不同,新生儿表现涉及呼吸和进食困难,随着典型的嘴巴外观,肌强直,骨骼发育不良和严重致命的高热。这种综合征的临床范围如此广泛,以至于很容易与更常见的差异相混淆。在这个案例报告中,出生在三级近亲结婚前两次流产的新生儿出现呼吸困难,严重的高热和喂养困难,由于难以接受标准的管理,这对管理来说是艰巨的挑战。严重的肌强直和严重的畸形是具有挑战性的点连接。靶向外显子组测序是一线希望,这揭示了染色体5p13上白血病抑制因子受体基因的纯合突变,证实了对相当常见的症状谱的遗传诊断。新生儿后来出现气腹,并死于潜在的严重新生儿疾病。
    Neonatal Schwartz-Jampel syndrome type II is a rare and severe form of genetic disorder. Different from the classical appearance in infancy, neonatal presentation involves respiratory and feeding difficulties, along with characteristic pursed appearance of the mouth, myotonia, skeletal dysplasia and severe fatal hyperthermia. The clinical spectrum of this syndrome is so wide that it easily baffles with more common differentials. In this case report, a neonate born to third-degree consanguineous marriage with previous two abortions presented with respiratory difficulty, severe hyperthermia and feeding difficulty, which were daunting challenges to manage due to being refractory to standard line of management. Severe myotonia and gross dysmorphism were challenging dots to connect. Targeted exome sequencing was a ray of hope, which revealed homozygous mutation in the leukaemia inhibitory factor receptor gene on chromosome 5p13, confirming the genetic diagnosis for a fairly common spectrum of symptoms. The neonate later developed pneumoperitoneum and succumbed to underlying severe neonatal illness.
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  • 文章类型: Case Reports
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  • 文章类型: Case Reports
    BACKGROUND: Pain management is an essential part of good obstetrical care. The rapid onset of pain relief after combined spinal-epidural (CSE) analgesia may cause a transient imbalance in maternal catecholamine level, leading to uterine hyperactivity and fetal heart rate (FHR) abnormalities. How to manage the uterine basal tone and FHR abnormalities after labor analgesia still remains controversial.
    UNASSIGNED: A 33-year-old nulliparous woman at 40 weeks\' gestation underwent induction of labor after premature rupture of membranes. CSE analgesia was provided when the patient described her pain as the top on a scale of 10 during induction of labor with oxytocin infusion.
    UNASSIGNED: Uterine hypertonus and fetal bradycardia were diagnosed within 10 minutes after CSE analgesia.
    METHODS: Oxytocin infusion and CSE analgesia were immediately suspended, and measures of staying in left lateral decubitus position and giving supplemental oxygen were attempted to resuscitating the baby. Because of suspicious fetal distress, the baby was rapidly delivered by emergency cesarean section.
    RESULTS: The Apgar score of the baby was 8 and 10 at 1 and 5 minutes after birth. Subsequent follow-up confirmed that both mother and baby were in good condition.
    CONCLUSIONS: The loss of the tocolytic effect of epinephrine after CSE analgesia and continuous oxytocin infusion may work together to form a totally synergistic function, finally leading to inevitable uterine hypertonus and fetal bradycardia. Both the obstetrical provider and anesthesiologist should carefully monitor all patients in the first 15 minutes after CES analgesia induction. Oxytocin administration in this critical period deserves attention. Additionally, intraprofessional collaboration is also necessary to ensure high quality and safe delivery for all childbearing women.
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  • 文章类型: Case Reports
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  • 文章类型: Journal Article
    Myofascial pelvic pain is a chronic and debilitating condition, sometimes associated with pelvic floor disorders (PFD) such as urinary incontinence, defecatory dysfunction or pelvic organ prolapse. Our aim was to identify risk factors in women with PFD and hypertonic pelvic floor, compared to controls without hypertonicity.
    Case control study (2009-2017) of patients with PFD and a diagnosis of hypertonic pelvic floor. Cases were matched with patients who presented with the same PFD but without pelvic floor hypertonicity. Postoperative patients with hypertonic pelvic floor were matched with patients who underwent surgery for the same PFD but did not develop pain. Risk factors were compared between groups.
    Ninety-five cases were matched; 71% had urogynecologic surgery as a possible trigger for myofascial pain. Most were post-menopausal. Overall, case patients were younger than controls (mean 54 vs 59, P = 0.002). Multivariate logistic regression identified risk factors of younger age (OR 1.45, 95%CI 1.04-2.07), history of depression (OR 3, 95%CI 1.03-9.09), musculoskeletal spine injury (OR 4.32, 95%CI 1.01-21.26) and transobturator midurethral sling (OR 8.36, 95%CI 2.68-31.32). Retropubic midurethral sling was protective against pelvic floor hypertonicity (OR 0.37, 95%CI 0.15-0.86). A clinical prediction model including depression, endometriosis, irritable bowel, spine injury and type of midurethral sling was developed to estimate the probability for myofascial pain after urogynecologic surgery.
    Specific risk factors predispose women with PFD to chronic pelvic floor hypertonicity. Knowledge of these can help with patient counselling and choice of midurethral sling prior to PFD surgery.
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