Cause Of Acute Myelopathy Research Articles

Determination of the Efficiency of Magnetic Resonance Imaging in the Evaluation of Compressive Myelopathy.

Background The phrase "compressive myelopathy" refers to compression of the spinal cord, either internally or externally. This compression might arise from various sources such as a herniated disc, post-traumatic compression, and epidural abscess as well as epidural or intradural neoplasms. Magnetic resonance imaging (MRI)plays a crucial role in differentiating between compressive and non-compressive myelopathy. After eliminating compressive lesions, attention is directed toward intrinsic cord-related causes of acute myelopathy including vascular, infectious, and inflammatory pathologies. Aims The study aimed to assess different etiologies of compressive myelopathy, analyze the MRI features of spinal cord compressive lesions, classify the lesions depending on site, and correlate MRI findings with intraoperative findings and histopathology in operated cases. Material &methods A total of 50 patients, who exhibited clinical symptoms indicative of compressive myelopathy sent to the Radiology department, Rangaraya Medical College (RMC), Kakinada for MRI spine were included in the study. It's an observational cross-sectional study. Statistical Package for Social Sciences (SPSS) version 22.0 (IBM Corp., Armonk, USA) was used for statistical calculations. Result Among the 50 cases of compressive myelopathy, the etiologiesare distributed as follows: trauma (22 cases), infection (12 cases), primary neoplasm (eight cases), and secondary neoplasm (eight cases); extradural compressive lesions (84%)and Intradural-extramedullary lesions (16%). Conclusion Utilizing MRI successfully assessed the spinal cord integrity and characterized spinal tumors. Consequently, the study concludes that MRI is a highly definitive, sensitive, and accurate tool for evaluating compressive myelopathy.

A Case of Hematomyelia in a Teenager with Behcet’s Disease due to both Warfarin and Intramedullary Cavernous Malformation (P6-5.029)

<h3>Objective:</h3> Highlight the importance of recognizing bleeding of intramedullary cavernous malformation or cavernoma as a cause of spinal cord lesion. <h3>Background:</h3> Intramedullary spinal cord hemorrhage, or hematomyelia, is a rare cause of acute myelopathy. Vascular malformations, anticoagulation therapy, and other bleeding diathesis are the most common causes. Cavernoma is a vascular malformation made of closely clustered, enlarged capillaries with a single layer of endothelium and without the elements of normal vascular structure or normal intervening brain parenchyma. Although they can bleed, cavernomas have a relatively benign prognosis. Hemorrhage of an intramedullary cavernoma during anticoagulation with warfarin was not previously reported. <h3>Design/Methods:</h3> Nineteen-year-old man with Behçet’s disease taking warfarin for intraventricular thrombus and multiple pulmonary emboli complained of acute back pain, unilateral leg weakness, and urinary retention. He had no personal or family history of vascular malformations. Examination was remarkable for paraplegia, a sensory level at T10, lower limb hyporeflexia and Babinski reflex bilaterally. INR was supratherapeutic at 3.6. CT of head, cervical and thoracic spine was unremarkable. <h3>Results:</h3> MRI of spine showed an enhancing intramedullary lesion at T8–T9, 3.8 cm in length, with surrounding edema. The mixed T1 hyperintensity and T2 hypointensity was suggestive of hemorrhage caused by a cavernoma. Warfarin was reversed with prothrombin complex concentrate. He was not a candidate for neurosurgical intervention. At discharge, the patient had not regained any motor or sensory function. <h3>Conclusions:</h3> This case highlights the need to suspect hematomyelia as a cause of acute myelopathy in a patient taking anticoagulation. While anticoagulation is not contraindicated in patients with known cavernoma, there should be a low threshold for considering the presence of a bleeding intramedullary cavernoma in a patient with acute myelopathy. <b>Disclosure:</b> Dr. Sacks has nothing to disclose. Dr. Treidler has nothing to disclose.

Spinal cord infarction: Clinical and imaging insights from the periprocedural setting

ObjectiveDescribe the range of procedures associated with spinal cord infarction (SCI) as a complication of a medical/surgical procedure and define clinical and imaging characteristics that could be applied to help diagnose spontaneous SCI, where the diagnosis is often less secure. MethodsWe used an institution-based search tool to identify patients evaluated at Mayo Clinic, Rochester, MN from 1997 to 2016 with a periprocedural SCI. We performed a descriptive analysis of clinical features, MRI and other laboratory findings, and outcome. ResultsSeventy-five patients were identified with SCI related to an invasive or non-invasive surgery including: aortic aneurysm repair (49%); other aortic surgery (15%); and a variety of other procedures (e.g., cardiac surgery, spinal decompression, epidural injection, angiography, nerve block, embolization, other vascular surgery, thoracic surgery) (36%). Deficits were severe (66% para/quadriplegia) and maximal at first post-procedural evaluation in 61 patients (81%). Impaired dorsal column function was common on initial examination. Imaging features included classic findings of owl eyes or anterior pencil sign on MRI (70%), but several other T2-hyperintensity patterns were also seen. Gadolinium enhancement of the SCI and/or cauda equina was also common when assessed. Six patients (10%) had an initial normal MRI despite a severe deficit. ConclusionsProcedures associated with SCI are many, and this complication does not exclusively occur following aortic surgery. The clinical and radiologic findings that we describe with periprocedural SCI may be used in future studies to help distinguish spontaneous SCI from alternate causes of acute myelopathy.

Emergency Neurologic Life Support: Spinal Cord Compression.

There are many causes of acute myelopathy including multiple sclerosis, systemic disease, and acute spinal cord compression (SCC). SCC should be among the first potential causes considered given the significant permanent loss of neurologic function commonly associated with SCC. This impairment can occur over a short period of time, and may be avoided through rapid and acute surgical intervention. Patients with SCC typically present with a combination of motor and sensory dysfunction that has a distribution referable to a spinal level. Bowel and bladder dysfunction and neck or back pain may also be part of the clinical presentation, but are not uniformly present. Because interventions are critically time-sensitive, the recognition and treatment of SCC was chosen as an ENLS protocol.

Acute parasitic and other infectious myelopathies in the tropics: 26 cases at the University Hospital in Conakry.

In tropical countries, laboratory-confirmed diagnostic certainty of parasitic and other infectious causes of acute myelopathy is difficult because of a shortage of medical professionals and consulting delays. We performed a retrospective study of 168 patients hospitalized for spinal disorders between 2007 and 2013 and identified 26 diagnosed with acute non-compressive myelopathy of presumed sudden onset. An parasitic or other infectious cause was established for all. A preliminary clinical infection preceding the development of neurologic signs was reported for 22 patients (84.6%). Neurological signs were limited to the existence of a progressive sensorimotor symptomatology with sphincter disorders.

ACR Appropriateness Criteria Myelopathy

Patients presenting with myelopathic symptoms may have a number of causative intradural and extradural etiologies, including disc degenerative diseases, spinal masses, infectious or inflammatory processes, vascular compromise, and vertebral fracture. Patients may present acutely or insidiously and may progress toward long-term paralysis if not treated promptly and effectively.Noncontrast CT is the most appropriate first examination in acute trauma cases to diagnose vertebral fracture as the cause of acute myelopathy. In most nontraumatic cases, MRI is the modality of choice to evaluate the location, severity, and causative etiology of spinal cord myelopathy, and predicts which patients may benefit from surgery. Myelopathy from spinal stenosis and spinal osteoarthritis is best confirmed without MRI intravenous contrast. Many other myelopathic conditions are more easily visualized after contrast administration. Imaging performed should be limited to the appropriate spinal levels, based on history, physical examination, and clinical judgment.The ACR Appropriateness Criteria are evidence-based guidelines for specific clinical conditions that are reviewed every three years by a multidisciplinary expert panel. The guideline development and review include an extensive analysis of current medical literature from peer-reviewed journals, and the application of a well-established consensus methodology (modified Delphi) to rate the appropriateness of imaging and treatment procedures by the panel. In those instances in which evidence is lacking or not definitive, expert opinion may be used to recommend imaging or treatment.

Emergency Neurologic Life Support: Spinal Cord Compression.

There are many causes of acute myelopathy including multiple sclerosis, systemic disease (SD), and acute spinal cord compression (SCC). SCC should be among the first potential causes considered given the significant permanent loss of neurologic function commonly associated with SCC. This impairment can occur over a short period of time, and may be avoided through rapid and acute surgical intervention. Patients with SCC typically present with a combination of motor and sensory dysfunction that has a distribution referable to a spinal level. Bowel and bladder dysfunction and neck or back pain may also be part of the clinical presentation, but are not uniformly present. Because interventions are critically time-sensitive, the recognition and treatment of SCC was chosen as an ENLS protocol.

Spinal Epidural Hematoma after Pain Control Procedure

Spinal epidural hematoma is a rare complication associated with pain control procedures such as facet block, acupuncture, epidural injection, etc. Although it is an uncommon cause of acute myelopathy, and it may require surgical evacuation. We report four patients with epidural hematoma developed after pain control procedures. Two procedures were facet joint blocks and the others were epidural blocks. Pain was the predominant initial symptom in these patients while two patients presented with post-procedural neurological deficits. Surgical evacuation of the hematoma was performed in two patients while in remaining two patients, surgery was initially recommended but not performed since symptoms were progressively improved. Three patients showed near complete recovery except for one patient who recovered with residual deficits. Although, spinal epidural hematoma is a rare condition, it can lead to serious complications like spinal cord compression. Therefore, it is important to be cautious while performing spinal pain control procedure to avoid such complications. Surgical treatment is an effective option to resolve the spinal epidural hematoma.

Ossification of the proximal thoracic ligamenta flava causing acute myelopathy in a Caucasian: case report and literature review

Case report and literature review. To illustrate that ossification of the proximal thoracic ligamenta flava can be a rare cause of acute myelopathy in a Caucasian patient and that timely surgery can lead to a good outcome. Nottingham, UK. Proximal multiple contiguous ossified thoracic ligamenta flava from T3/T4 to T5/T6 causing acute myelopathy was diagnosed in a Caucasian man based on history and examination followed by magnetic resonance imaging and computed tomography scanning. The literature is reviewed for all reported cases of ossified ligamenta flava causing myelopathy in Caucasians. Following prompt diagnosis and T3 to T5 laminectomies, our patient made near-complete neurological recovery over a 10-month period. This condition usually affects the lower thoracic spine. Although chronic and subacute myelopathy secondary to this circumstance has been reported in Caucasians, acute myelopathy has not been reported and proximal thoracic involvement has been reported twice. Ossification of the proximal thoracic ligamenta flava can be a rare cause of acute myelopathy in Caucasians. Prognosis following decompressive surgery is usually good.

Differential diagnosis of acute myelopathies.

Diagnosis of acute myelopathy applies to subjects with acute motor involvement, segmental sensory loss and sphincter dysfunction, reaching a maximum no later than 4 weeks after onset. Among the different causes of acute myelopathy (e.g. compressive, vascular, traumatic or toxic lesions, paraneoplastic involvement and electrical injury), acute myelitis due to infective agents or to an autoimmune-inflammatory process frequently causes problems relating to the differential diagnosis of multiple sclerosis (MS) and its potential risk of developing MS.