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Titolo:
Imaging the trigeminal nerve and pons before and after surgical intervention for trigeminal neuralgia
Autore:
Jawahar, A; Kondziolka, D; Kanal, E; Bissonette, DJ; Lunsford, LD;
Indirizzi:
Univ Pittsburgh, Med Ctr, Dept Neurol Surg, Pittsburgh, PA 15213 USA Univ Pittsburgh Pittsburgh PA USA 15213 ol Surg, Pittsburgh, PA 15213 USA Univ Pittsburgh, Med Ctr, Dept Radiol, Pittsburgh, PA 15213 USA Univ Pittsburgh Pittsburgh PA USA 15213 Radiol, Pittsburgh, PA 15213 USA Univ Pittsburgh, Med Ctr, Ctr Image Guided Neurosurg, Pittsburgh, PA 15213USA Univ Pittsburgh Pittsburgh PA USA 15213 eurosurg, Pittsburgh, PA 15213USA
Titolo Testata:
NEUROSURGERY
fascicolo: 1, volume: 48, anno: 2001,
pagine: 101 - 106
SICI:
0148-396X(200101)48:1<101:ITTNAP>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
GAMMA-KNIFE RADIOSURGERY; MULTIPLE-SCLEROSIS; COMPRESSION; NEUROPATHY; CONTACT;
Keywords:
microvascular decompression; neuroimaging; radiosurgery; rhizotomy; trigeminal nerve; trigeminal neuralgia;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
21
Recensione:
Indirizzi per estratti:
Indirizzo: Kondziolka, D Univ Pittsburgh, Med Ctr, Dept Neurol Surg, Suite B-400,200 Lothrop St, Pittsburgh, PA 15213 USA Univ Pittsburgh Suite B-400,200 Lothrop St Pittsburgh PA USA 15213
Citazione:
A. Jawahar et al., "Imaging the trigeminal nerve and pons before and after surgical intervention for trigeminal neuralgia", NEUROSURGER, 48(1), 2001, pp. 101-106

Abstract

OBJECTIVE: To study the various imaging changes occurring in the trigeminal nerve and brainstem in patients before or after trigeminal neuralgia surgery. METHODS: During a 7-year period, 275 patients with trigeminal neuralgia underwent high-resolution, contrast-enhanced magnetic resonance imaging (MRI)of the pens during gamma knife radiosurgery. Ninety-seven patients had no previous surgical intervention for trigeminal neuralgia, and 178 patients had undergone one or move previous procedures. Two independent observers, one of whom was blinded to patients' clinical details, reviewed MRI scans retrospectively. The analysis of the independent observers was then correlatedwith all previous therapeutic interventions. RESULTS: One hundred one MRI scans demonstrated no radiological changes related to trigeminal neuralgia, and 174 MRI scans exhibited some radiological abnormality. The average axial plane diameter of the nerve for all patients was 4 mm (range, 2-6 mm). In the group that had not undergone previous surgery, 65 patients (67%) exhibited vascular compression. In the 88 patients who had undergone previous microvascular decompression, 21 (24%) had evidence of a pontine infarction. Twenty-six patients experienced facial sensory loss, 22 (88%) of whom had undergone previous surgery with evidence of a pontine infarction (n = 11) or perineural scarring (n = 6). CONCLUSION: The majority of patients who had undergone previous trigeminalneuralgia surgery demonstrated readily identifiable abnormalities of the trigeminal nerve or brainstem. The frequency of such changes correlated withthe type and number of procedures. Evidence of vascular compression was detected in the majority of patients. Most patients with postoperative facialsensory loss demonstrate changes in the nerve or pens on MR images.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 15:40:23