The Experts below are selected from a list of 21 Experts worldwide ranked by ideXlab platform
Julien Bogousslavsky - One of the best experts on this subject based on the ideXlab platform.
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face arm trunk leg sensory loss limited to the contraLateral side in Lateral medullary infarction a new variant
Journal of Neurology Neurosurgery and Psychiatry, 1998Co-Authors: Ph Vuadens, Julien BogousslavskyAbstract:Two patients are reported on who experienced loss of pain and temperature sensation in the entire contraLateral hemibody but sparing the ispsiLateral face (pure sensory stroke pattern) related to acute Lateral medullary infarction. In both patients MRI showed a notch-like retro-olivary ischaemic lesion in the ventromedial tegmentum with preservation of the far Lateral medulla. The medioLateral lesion involved the crossed Lateral Spinothalamic Tract and the ventral trigeminothalamic Tract, corresponding to sensory loss in the contraLateral face, arm, and upper trunk. The ventroLateral extension of infarct damaged the far Lateral part of the Spinothalamic Tract, corresponding to sensory loss in the contraLateral lower trunk and leg. The findings suggest that hemisensory loss of the Spinothalamic type involving—and limited to—the whole hemibody can occur in infarction in the lower brainstem. This form of pure sensory stroke may be classified as type IV of sensory loss in Lateral medullary infarction.
Gunther Pendl - One of the best experts on this subject based on the ideXlab platform.
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evidence for segregated pain and temperature conduction within the Spinothalamic Tract
Journal of Neurosurgery, 1995Co-Authors: Gerhard Friehs, O Schrottner, Gunther PendlAbstract:✓ The Lateral Spinothalamic Tract, located in the anteroLateral quadrant of the white matter of the spinal cord, is one of the most important structures in transmitting pain within the central nervous system. It has been known for almost a century that destruction of fibers in this Tract results in analgesia contraLateral to the lesion. The effectiveness and clinical importance of interruption of the Lateral Spinothalamic Tract has been proven in many studies. Today cordotomies are still a useful neurosurgical treatment modality, especially when pain can no longer be sufficiently controlled by analgesic drugs. Although analgesia on the contraLateral side is the desired effect, one must also expect to cause disturbance in temperature sensation when performing a cordotomy. The authors' observations showed that after a cordotomy the dermatome level of analgesia can be variable within certain limits, which is in accordance with the literature. Surprisingly, however, the loss of temperature sensation may diffe...
Ph Vuadens - One of the best experts on this subject based on the ideXlab platform.
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face arm trunk leg sensory loss limited to the contraLateral side in Lateral medullary infarction a new variant
Journal of Neurology Neurosurgery and Psychiatry, 1998Co-Authors: Ph Vuadens, Julien BogousslavskyAbstract:Two patients are reported on who experienced loss of pain and temperature sensation in the entire contraLateral hemibody but sparing the ispsiLateral face (pure sensory stroke pattern) related to acute Lateral medullary infarction. In both patients MRI showed a notch-like retro-olivary ischaemic lesion in the ventromedial tegmentum with preservation of the far Lateral medulla. The medioLateral lesion involved the crossed Lateral Spinothalamic Tract and the ventral trigeminothalamic Tract, corresponding to sensory loss in the contraLateral face, arm, and upper trunk. The ventroLateral extension of infarct damaged the far Lateral part of the Spinothalamic Tract, corresponding to sensory loss in the contraLateral lower trunk and leg. The findings suggest that hemisensory loss of the Spinothalamic type involving—and limited to—the whole hemibody can occur in infarction in the lower brainstem. This form of pure sensory stroke may be classified as type IV of sensory loss in Lateral medullary infarction.
Gerhard Friehs - One of the best experts on this subject based on the ideXlab platform.
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evidence for segregated pain and temperature conduction within the Spinothalamic Tract
Journal of Neurosurgery, 1995Co-Authors: Gerhard Friehs, O Schrottner, Gunther PendlAbstract:✓ The Lateral Spinothalamic Tract, located in the anteroLateral quadrant of the white matter of the spinal cord, is one of the most important structures in transmitting pain within the central nervous system. It has been known for almost a century that destruction of fibers in this Tract results in analgesia contraLateral to the lesion. The effectiveness and clinical importance of interruption of the Lateral Spinothalamic Tract has been proven in many studies. Today cordotomies are still a useful neurosurgical treatment modality, especially when pain can no longer be sufficiently controlled by analgesic drugs. Although analgesia on the contraLateral side is the desired effect, one must also expect to cause disturbance in temperature sensation when performing a cordotomy. The authors' observations showed that after a cordotomy the dermatome level of analgesia can be variable within certain limits, which is in accordance with the literature. Surprisingly, however, the loss of temperature sensation may diffe...
Takashi Kanda - One of the best experts on this subject based on the ideXlab platform.
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hyperalgesia with loss of temperature sensation in one side of the body due to pinpoint infarction of contraLateral Spinothalamic Tract
Rinshō shinkeigaku Clinical neurology, 2009Co-Authors: Yoko Kashiwamura, Jun-ichi Ogasawara, Motoharu Kawai, Kiyoshi Negoro, Michiaki Koga, Takashi KandaAbstract:: We report a 67-year-old man who presented sudden loss of temperature sensation associated with hyperalgesia in the left trunk and extremities. No abnormal lesions were found on routine magnetic resonance image (MRI) in the brain and spinal cord. He did not show common manifestations of the Lateral medullary syndrome including vertigo, nystagmus, ataxia, Horner's syndrome and ipsiLateral facial sensory loss. We however suspected this syndrome, because he complained of characteristic, severe pain and electrical sensations in one side of his body. Reexamined, thinly sliced T2-weighted MRI showed a very small high intensity spot in the right medulla, corresponding to the location of Lateral Spinothalamic Tract. Oral carbamazepine was partially effective to ameliorate the inTractable central poststroke pain.
