TAILIEUCHUNG - Chapter 025. Numbness, Tingling, and Sensory Loss (Part 6)

Spinal Cord (See also Chap. 372) If the spinal cord is transected, all sensation is lost below the level of transection. Bladder and bowel function are also lost, as is motor function. Hemisection of the spinal cord produces the Brown-Séquard syndrome, with absent pain and temperature sensation contralaterally and loss of proprioceptive sensation and power ipsilaterally below the lesion (see Figs. 25-1 and 372-1). Numbness or paresthesias in both feet may arise from a spinal cord lesion; this is especially likely when the upper level of the sensory loss extends to the trunk. When all extremities are affected, the lesion. | Chapter 025. Numbness Tingling and Sensory Loss Part 6 Spinal Cord See also Chap. 372 If the spinal cord is transected all sensation is lost below the level of transection. Bladder and bowel function are also lost as is motor function. Hemisection of the spinal cord produces the Brown-Sequard syndrome with absent pain and temperature sensation contralaterally and loss of proprioceptive sensation and power ipsilaterally below the lesion see Figs. 25-1 and 372-1 . Numbness or paresthesias in both feet may arise from a spinal cord lesion this is especially likely when the upper level of the sensory loss extends to the trunk. When all extremities are affected the lesion is probably in the cervical region or brainstem unless a peripheral neuropathy is responsible. The presence of upper motor neuron signs Chap. 23 supports a central lesion a hyperesthetic band on the trunk may suggest the level of involvement. A dissociated sensory loss can reflect spinothalamic tract involvement in the spinal cord especially if the deficit is unilateral and has an upper level on the torso. Bilateral spinothalamic tract involvement occurs with lesions affecting the center of the spinal cord such as in syringomyelia. There is a dissociated sensory loss with impairment of pinprick and temperature appreciation but relative preservation of light touch position sense and vibration appreciation. Dysfunction of the posterior columns in the spinal cord or of the posterior root entry zone may lead to a bandlike sensation around the trunk or a feeling of tight pressure in one or more limbs. Flexion of the neck sometimes leads to an electric shock-like sensation that radiates down the back and into the legs Lhermitte s sign in patients with a cervical lesion affecting the posterior columns such as from multiple sclerosis cervical spondylosis or recent irradiation to the cervical region. Brainstem Crossed patterns of sensory disturbance in which one side of the face and the opposite side of the body

• Y học thường thức
• Numbness
• Tingling
• Sensory Loss
• bệnh học và điều trị
• bài giảng bệnh học
• tài liệu học ngành y
• Harrisons Internal Medicine
• BMC Musculoskeletal Disorders
• Lumbar disc herniation endoscopic numbness
• Transforaminal endoscopic discectomy
• Lumbar disc herniation
• Central disc herniation
• Anterior chest wall numbness
• Clavicle fracture
• Mini open
• Minimal invasive
• Locking compression plate
• medical books
• pharmacology
• epidemiologic
• Obstetrics
• anatomy
• Preventing Morbidity
• Multidisciplinary Care
• 1 Bromopropane
• Risk assessment
• Animal experiments
• Human studies
• Toxicity to 1 bromopropane including numbness
• BMC Pediatrics
• Local anesthetics
• Third molar surgery
• Postoperative pain
• Duration of surgery
• Lip numbness
• BMC Anesthesiology
• Trigeminal neuralgia
• Radiofrequency thermocoagulation
• Idiopathic trigeminal neuralgia
• Postoperative facial numbness