tractotomy

tractotomy
Interruption of a nerve tract in the brainstem or spinal cord. [L. tractus, tract, + G. tome, incision]
- anterolateral t. SYN: anterolateral cordotomy.
- pyramidal t. may be mesencephalic (pedunculotomy or crusotomy), medullary (medullary pyramidotomy), or spinal (spinal pyramidotomy).
- Schwartz t. a medullary spinothalamic t..
- Sjöqvist t. SYN: trigeminal t..
- spinal t. SYN: anterolateral cordotomy.
- spinothalamic t. may be spinal (cordotomy), medullary (Schwartz t.), or mesencephalic (Walker t.).
- trigeminal t. division of the descending fibers of the trigeminal tract in the medulla. SYN: intramedullary t., Sjöqvist t..
- Walker t. a mesencephalic spinothalamic t..

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trac·tot·o·my trak-'tät-ə-mē n, pl -mies surgical division of a nerve tract

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n.
a neurosurgical operation for the relief of intractable pain. The nerve fibres that carry painful sensation to consciousness travel from the spinal cord through the brainstem in the spinothalamic tracts. This procedure is designed to sever the tracts within the medulla oblongata. See also cordotomy.

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trac·tot·o·my (trak-totґə-me) surgical severing or incising of a nerve tract.

Medical dictionary. 2011.

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  • tractotomy — noun The surgical excision of nerve tracts in the medulla of the brain …   Wiktionary

  • tractotomy — trac·tot·o·my …   English syllables

  • tractotomy — n. a neurosurgical operation for the relief of intractable pain. The nerve fibres that carry painful sensation to consciousness travel from the spinal cord through the brainstem in the spinothalamic tracts. This procedure is designed to sever the …   The new mediacal dictionary

  • tractotomy — trakˈtad.əmē noun ( es) Etymology: International Scientific Vocabulary tract (III) + o + tomy : chordotomy …   Useful english dictionary

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  • medullary tractotomy — interruption of one or more tracts in the medulla oblongata for the relief of pain …   Medical dictionary

  • mesencephalic tractotomy — mesencephalotomy …   Medical dictionary

  • stereotactic tractotomy — production of lesions in the fibers of the caudate nucleus; used as a psychosurgical technique to relieve intractable depression, anxiety, or obsessional states …   Medical dictionary

  • ТРАКТОТОМИЯ — (tractotomy) нейрохирургическая операция, выполняющаяся для уменьшения непреходящей боли, заключающаяся в перерезании проводящих путей, по которым к головному мозгу поступают болевые импульсы, проходят от спинного мозга через ствол головного… …   Толковый словарь по медицине

  • History of psychosurgery in the United Kingdom — Psychosurgery is a surgical operation that destroys brain tissue in order to alleviate the symptoms of mental disorder. [Mental Health Act 1983, section 57.] The lesions are usually, but not always, made in the frontal lobes. Tissue may be… …   Wikipedia

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