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World Journal of Oncology Apr 2023Immune checkpoint inhibitors (ICPIs) and chimeric antigen receptor (CAR) T-cell constitute recently approved novel therapies targeted to treat a wide number of... (Review)
Review
Immune checkpoint inhibitors (ICPIs) and chimeric antigen receptor (CAR) T-cell constitute recently approved novel therapies targeted to treat a wide number of malignancies. Both the treatments modulate the immune system and can cause a number of immune-related adverse events (irAEs), including polyendocrinopathies, gastrointestinal and neurological complications. This literature review focuses on the neurological side effects of these therapies as these are uncommon and alter the course of the treatment. Neurological complications involve the peripheral and central nervous system, including polyneuropathy, myositis, myasthenia gravis, demyelinating polyradiculopathy, myelitis, and encephalitis. If early recognized, the neurological complications can be treated effectively with steroids to reduce the potential of short-term and long-term complications. Therefore, early identification and treatment of irAEs are needed to optimize the outcomes associated with ICPI and CAR T-cell therapies.
PubMed: 37188042
DOI: 10.14740/wjon1575 -
Indian Journal of Nuclear Medicine :... 2023Neurolymphomatosis is rarely encountered in high-grade lymphomas. In this case series, we retrospectively analyzed six neurolymphomatosis cases to look for possible risk...
Neurolymphomatosis is rarely encountered in high-grade lymphomas. In this case series, we retrospectively analyzed six neurolymphomatosis cases to look for possible risk factors, common and uncommon presentations, and the lessons learned. Neuropathic pain was the most common symptom with mono or polyradiculopathy in this series. However, all lymphomatous infiltrated nerves diagnosed on fluorodeoxyglucose positron emission tomography-computed tomography (FDG PET/CT) were not symptomatic. The lumbar, brachial plexus, and trigeminal nerve were the most common sites and were depicted well on FDG PET/CT. Magnetic resonance imaging (MRI) of the brain better delineates cranial nerves and meningeal involvement. Cerebrospinal fluid flow cytometry was normal until meninges were involved. FDG PET/CT incrementally evaluated extra-neural disease sites, thus helping in deciding biopsy sites and further management. We concluded that a whole-body FDG PET/CT including limbs with MRI brain was the appropriate investigation for evaluating suspected neurolymphomatosis in advanced-stage diffuse large B-cell lymphoma.
PubMed: 37180178
DOI: 10.4103/ijnm.ijnm_165_22 -
The American Journal of Case Reports Apr 2023BACKGROUND Cervical spine deformities can occur because of genetic, congenital, inflammatory, degenerative, or iatrogenic causes. CASE REPORT We report a 45-year-old...
Double Fascicular Nerve Transfer Restored Nearly Normal Functional Movements in a Completely Paralyzed Upper Extremity Resulting from an ACDF Surgery: A Case Report and Review of Recent Literature.
BACKGROUND Cervical spine deformities can occur because of genetic, congenital, inflammatory, degenerative, or iatrogenic causes. CASE REPORT We report a 45-year-old woman who presented to our clinic with complete paralysis of the left upper extremity 5 months after C4-C6 discectomy and fusion surgery. The electrodiagnostic and EMG reports 3 months after her previous surgery revealed left C5-C7 polyradiculopathy involving the upper trunk, lateral and posterior cords, and atrophy of the left deltoids, triceps, and biceps muscles. She underwent the following nerve transfer procedures with the senior author (RKN): The median nerve fascicles were transferred to the biceps and brachialis branches of the musculocutaneous nerve. Radial nerve triceps branches were transferred to the deltoid and teres minor branches of the axillary nerve. The patient could fully abduct her left shoulder to 170°, and the LUE functions were restored to nearly normal 17 months after the surgery. CONCLUSIONS Neurolysis combined with nerve transfer might be the most effective treatment for cervical spinal root injuries. Advances in peripheral nerve rewiring, transcranial magnetic stimulation, brain-computer interface robotic technologies, and emerging rehabilitation will undoubtedly increase the possibility of reviving the extremities in patients with central pathology by restoring the descending motor signals through the residual neural network connections.
Topics: Female; Humans; Middle Aged; Nerve Transfer; Brachial Plexus; Muscle, Skeletal; Paralysis; Upper Extremity
PubMed: 37081753
DOI: 10.12659/AJCR.938650 -
Annals of the Royal College of Surgeons... Jan 2024For cauda equina syndrome (CES), current clinical assessment in the emergency department usually involves perianal sensation (PAS) and anal tone (AT). Neither reliably... (Review)
Review
For cauda equina syndrome (CES), current clinical assessment in the emergency department usually involves perianal sensation (PAS) and anal tone (AT). Neither reliably predict magnetic resonance imaging (MRI) demonstrating a large central disc prolapse (MRI+). Other clinical examination findings increase the probability of MRI+. Other tests of sacral nerve root function include anal squeeze (AS) and the bulbocavernosus reflex (BCR). If BCR, PAS and AT, and AS are combined and they are all normal, CES can be excluded in almost all cases. Portable bladder ultrasonography is now commonly used to assess bladder function, particularly in measuring the post-void residual urinary volume (PVR). PVR is deemed normal at <50ml. If the PVR is <200ml and there are no objective signs, MRI+ is rare. If the PVR is >200ml, MRI+ is found in 43% of cases. The combined assessment of PAS, AT and AS (and BCR in selected cases) and PVR increases the specificity and sensitivity of a clinical diagnosis of CES (i.e. maximising MRI+ and minimising MRI-). Recommendations for when to perform MRI are made.
Topics: Humans; Urinary Bladder; Cauda Equina Syndrome; Polyradiculopathy; Intervertebral Disc Displacement; Emergency Service, Hospital
PubMed: 37051769
DOI: 10.1308/rcsann.2022.0168 -
Medicina (Kaunas, Lithuania) Mar 2023Neurogenic bowel dysfunction (NBD) is common in patients with cauda equina syndrome (CES). Previous studies have reported that electrical stimulation (ES) improves NBD...
Neurogenic bowel dysfunction (NBD) is common in patients with cauda equina syndrome (CES). Previous studies have reported that electrical stimulation (ES) improves NBD but more neurophysiologic evidence is required. This case report describes a patient who experienced difficulty with defecation as a result of cauda equina syndrome (CES) that developed after a cesarean section performed 12 years ago under spinal anesthesia. The neurophysiological effects were assessed using the bulbocavernosus reflex (BCR) and electromyography (EMG). Two ES treatments, interferential current therapy and transcutaneous electrical stimulation, were used to stimulate the intestine and the external anal sphincter, respectively. The BCR results showed right-side delayed latency and no response on the left side. Needle EMG revealed abnormal spontaneous activities of the bilateral bulbocavernosus (BC) muscles. Electrodiagnostic testing revealed chronic bilateral sacral polyradiculopathy, compatible with CES. After treatment, the patient reported an improved perianal sensation, less strain and time for defecation than before, and satisfaction with her bowel condition. At the follow-up electrodiagnosis, the BCR latency was normal on the right side-needle EMG revealed reductions in the abnormal spontaneous activities of both BC muscles and re-innervation of the right BC muscle. Electrodiagnostic testing can offer insight into the neurophysiological effects of ES, which can help in understanding the mechanism of action and optimizing the therapy for patients with NBD.
Topics: Humans; Pregnancy; Female; Cauda Equina Syndrome; Neurogenic Bowel; Anesthesia, Spinal; Cesarean Section; Electric Stimulation
PubMed: 36984589
DOI: 10.3390/medicina59030588 -
Arquivos de Neuro-psiquiatria Jan 2023Concomitant neurological diseases in people living with HIV/AIDS (PLWHA) is a challenging subject that has been insufficiently evaluated by prospective clinical studies.... (Observational Study)
Observational Study
BACKGROUND
Concomitant neurological diseases in people living with HIV/AIDS (PLWHA) is a challenging subject that has been insufficiently evaluated by prospective clinical studies. The goal of the present study was to identify the clinical characteristics and outcomes of PLWHA with cerebral toxoplasmosis and neurological co-infections.
METHODS
We conducted a prospective observational cohort study at a tertiary teaching center in São Paulo, Brazil, from January to July 2017. Hospitalized PLWHA aged ≥ 18 years with cerebral toxoplasmosis were consecutively enrolled. A standardized neurological examination was performed at admission and weekly until discharge or death. Diagnosis and treatment followed institutional routines; neuroradiology, molecular diagnosis, neurosurgery, and the intensive care unit (ICU) were available. The main outcomes were neurological coinfections and in-hospital death.
RESULTS
We included 44 (4.3%) cases among 1,032 hospitalized patients. The median age was 44 (interquartile range [IQR]: 35-50) years, and 50% (n = 22) of the patients were male. The median CD4+ T lymphocyte count was of 50 (IQR: 15-94) cells/mm. Multiple lesions on computed tomography were present in 59% of the cases. Neurological coinfections were diagnosed in 20% (n = 9) of the cases, and cytomegalovirus was the most common etiology (encephalitis: n = 3; polyradiculopathy: n = 2). Longer hospital stays (30 versus 62 days; = 0.021) and a higher rate of ICU admissions (14% versus 44%; = 0.045) were observed among PLWHA with neurological coinfections in comparison to those without them. The rate of in-hospital mortality was of 13.6% (n = 6) (coinfection group: 33%; no coinfection group: 8.6%; = 0.054).
CONCLUSION
Neurological c-infections were common among PLWHA with cerebral toxoplasmosis, and cytomegalovirus was the main copathogen. The group of PLWHA with neurological co-infections underwent longer hospital stays and more frequent intensive care unit admissions. Additionally, this group of patients tended to have higher in-hospital mortality rate.
Topics: Humans; Male; Adult; Middle Aged; Female; Toxoplasmosis, Cerebral; Coinfection; Hospital Mortality; Prospective Studies; Brazil; Nervous System Diseases; AIDS-Related Opportunistic Infections; HIV Infections
PubMed: 36918005
DOI: 10.1055/s-0042-1759758 -
Journal of Neurology, Neurosurgery, and... Sep 2023Neuromyelitis optica spectrum disorders (NMOSDs) are a group of diseases mainly characterised by recurrent optic neuritis and/or myelitis. Most cases are associated with...
BACKGROUND AND OBJECTIVES
Neuromyelitis optica spectrum disorders (NMOSDs) are a group of diseases mainly characterised by recurrent optic neuritis and/or myelitis. Most cases are associated with a pathogenic antibody against aquaporin-4 (AQP4-Ab), while some patients display autoantibodies targeting the myelin oligodendrocyte glycoprotein (myelin oligodendrocyte glycoprotein antibodies (MOG-Abs)). Anti-Argonaute antibodies (Ago-Abs) were first described in patients with rheumatological conditions and were recently reported as a potential biomarker in patients with neurological disorders. The aims of the study were to investigate if Ago-Abs can be detected in NMOSD and to evaluate its clinical usefulness.
METHODS
Sera from patients prospectively referred to our centre with suspected NMOSD were tested for AQP4-Abs, MOG-Abs and Ago-Abs with cell-based assays.
RESULTS
The cohort included 104 prospective patients: 43 AQP4-Abs-positive cases, 34 MOG-Abs positive cases and 27 double-negative patients. Ago-Abs were detected in 7 of 104 patients (6.7%). Clinical data were available for six of seven patients. The median age at onset of patients with Ago-Abs was 37.5 [IQR 28.8-50.8]; five of six patients tested positive also for AQP4-Abs. Clinical presentation at onset was transverse myelitis in five patients, while one presented with diencephalic syndrome and experienced a transverse myelitis during follow-up. One case presented a concomitant polyradiculopathy. Median EDSS score at onset was 7.5 [IQR 4.8-8.4]; median follow-up was 40.3 months [IQR 8.3-64.7], and median EDSS score at last evaluation was 4.25 [IQR 1.9-5.5].
CONCLUSION
Ago-Abs are present in a subset of patients with NMOSD and, in some cases, represent the only biomarker of an autoimmune process. Their presence is associated with a myelitis phenotype and a severe disease course.
Topics: Humans; Myelitis, Transverse; Myelin-Oligodendrocyte Glycoprotein; Prospective Studies; Neuromyelitis Optica; Aquaporin 4; Biomarkers; Autoantibodies
PubMed: 36810322
DOI: 10.1136/jnnp-2022-330707 -
Asia Oceania Journal of Nuclear... 2023Neurolymphomatosis is an uncommon manifestation of lymphoma, often presenting with painful polyneuropathy or polyradiculopathy and concomitant distal extremity weakness....
Neurolymphomatosis is an uncommon manifestation of lymphoma, often presenting with painful polyneuropathy or polyradiculopathy and concomitant distal extremity weakness. Differentiation from other etiologies resulting in similar neuropathic symptoms such as compressive or inflammatory pathologies can be difficult and often results in delayed diagnosis. Here we describe a case of neurolymphomatosis affecting a 64-year-old man with a history of diffuse large B-cell lymphoma (DLBCL) in remission presenting with a right-sided foot drop following a gunshot wound. MRI at that time demonstrated thickening and enhancement of the cauda equina nerve roots. Over the course of the subsequent eight months, he developed left lower extremity sensory symptoms, left-sided foot drop and signs of upper motor neuron involvement, including left facial weakness, dysphonia, and dysphagia. F-FDG PET/CT revealed intensely avid left lumbosacral nerve roots, bilateral lower extremity and left upper extremity neurovascular bundles. Left sural nerve biopsies showed infiltration of DLBCL and confirmed neurolymphomatosis. We highlight the role of F-FDG PET/CT, with histological verification, for the diagnosis of an extended course of neurolymphomatosis occurring in the absence of typical painful neuropathy but with cranial and peripheral neuropathies.
PubMed: 36619186
DOI: 10.22038/AOJNMB.2022.66666.1464 -
Arquivos de Neuro-psiquiatria Dec 2022Studies were carried out with the objective of evaluating the quality of life (QoL) of patients affected by chronic inflammatory demyelinating polyradiculopathy (CIDP)....
BACKGROUND
Studies were carried out with the objective of evaluating the quality of life (QoL) of patients affected by chronic inflammatory demyelinating polyradiculopathy (CIDP). However, the cognitive issue is still little addressed.
OBJECTIVES
To assess the QoL and cognitive impairment of patients with CIDP and to analyze whether there is a correlation between these parameters.
METHODS
Seven patients with CIDP and seven paired controls were subjected to: mini-mental state examination (MMSE); Montreal cognitive assessment (MoCA); digit symbol replacement/symbol copy test (DSST); fatigue severity scale (FSS); Beck depressive inventory-I (BDI-I), and a short-form of health survey (SF-36).
RESULTS
The mean age of the participants was 50 years (71.4% male). The MMSE and MoCA had no statistical difference between the groups. Patients showed superior results in the memory domain in the MoCA (5 vs. 2, = 0.013). In the DSST, we observed a tendency for patients to be slower. There was a strong negative correlation between fatigue levels and vitality domain (SF-36). There was no significant correlation between depression levels and QoL, and there was no correlation between depression and the results obtained in the cognitive tests. The patients presented higher levels of depression (15.28 vs. 3.42, < 0.001). A total of 57% had severe fatigue, 28.8% self-reported pain, and 57.1% complained of cramps.
CONCLUSION
There was no cognitive impairment in these patients. However, there was a tendency of slower processing speed. To better evaluate the alterations found, a study with a larger number of individuals would be necessary. Chronic inflammatory demyelinating polyradiculopathy affects the QoL of patients in different ways.
Topics: Humans; Male; Middle Aged; Female; Quality of Life; Polyradiculoneuropathy, Chronic Inflammatory Demyelinating; Polyradiculopathy; Cognitive Dysfunction; Cognition; Neuropsychological Tests; Fatigue
PubMed: 36580963
DOI: 10.1055/s-0042-1758455