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Case Report

Spine subdural hematoma: a rare complication associated with vitamin K antagonist (VKA)

Uri Adrian Prync Flato et al. Paulo Sérgio Rheder Helio Penna Guimarães Elias Silva Flato Paulo Cretella

Spinal subdural hematoma (SSDH) is a rare condition, which is difficult to diagnose, related to Vitamin K Antagonist. This a case report of a life-threatening situation in a octogenarian patient with a history of recent atrial fibrillation that received K-Vitamin Antagonist (KVA) therapy. The history and the clinical assessment were normal at the admission, associated with increase in the coagulation parameters (INR >10). Twenty-four hours after the admission, the patient developed progressive tetraparesis and a Magnetic Resonance Imaging (MRI) was performed, disclosing the evidence of a SSDH (Figure 1). An emergency neurosurgical intervention was performed associated with normalization of the coagulation parameters. After the procedure, the patient presented improvement of the neurological symptoms.

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Ischemic preconditioning and spinal cord function monitoring in the descending thoracic aorta approach

Bernardo Assumpção de Mônaco et al. Anderson Benício Ivan Salvador Bonillo Contreras Larissa Eckmann Mingrone … Gerson Ballester Luiz Felipe Pinho Moreira

OBJECTIVES: To evaluate the effectiveness of acute ischemic preconditioning (IP), based on somatosensory evoked potentials (SSEP) monitoring, as a method of spinal cord protection and to asses SSEP importance in spinal cord neuromonitoring. METHODS: Twenty-eight dogs were submitted to spinal cord ischemic injury attained by descending thoracic aorta cross-clamping. In the C45 group, the aortic cross-clamping time was 45 min (n=7); in the IP45 group, the dogs were submitted to IP before the aortic cross-clamping for 45 min (n=7). In the C60 group, the dogs were submitted to 60 min of aortic cross-clamping (n=7), as in the IP60 group that was previously submitted to IP. The IP cycles were determined based on SSEP changes. RESULTS: Tarlov scores of the IP groups were significantly better than those of the controls (p = 0.005). Paraplegia was observed in 3 dogs from C45 and in 6 from C60 group, although all dogs from IP45 group were neurologically normal, as 4 dogs from IP60. There was a significant correlation between SSEP recovery time until one hour of aortic reperfusion and the neurological status (p = 0.011), showing sensitivity of 75% and specificity of 83%. CONCLUSION: Repetitive acute IP based on SSEP is a protection factor during spinal cord ischemia, decreasing paraplegia incidence. SSEP monitoring seems to be a good neurological injury assessment method during surgical procedures that involve spinal cord ischemia.

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Spine subdural hematoma: a rare complication associated with vitamin K antagonist (VKA)

Ischemic preconditioning and spinal cord function monitoring in the descending thoracic aorta approach

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Electronic Document Format (Vancouver)

Electronic Document Format (ABNT)

Electronic Document Format (APA)

Electronic Document Format (ISO)