Predictive factors for complications after surgical treatment for schwannomas of the extremities View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2019-04-11

AUTHORS

Toshihide Hirai, Hiroshi Kobayashi, Toru Akiyama, Tomotake Okuma, Hiroyuki Oka, Yusuke Shinoda, Masachika Ikegami, Yusuke Tsuda, Takashi Fukushima, Takahiro Ohki, Yuki Ishibashi, Ryoko Sawada, Takahiro Goto, Sakae Tanaka

ABSTRACT

BACKGROUND: Schwannomas are well-encapsulated, benign neoplasms, and enucleation is a standard operation procedure. The incidence of neurological complications after surgical treatment for schwannomas of the extremities varies, and there is no consensus concerning predictive factors for complications. The aim of this study was to elucidate predictive factors for complications after surgical treatment of schwannomas that develop in the major nerves of the extremities. METHODS: A total of 139 patients with 141 schwannomas arising in major nerves were retrospectively analyzed. Data regarding preoperative clinical features, the postoperative neurological complications, and clinical course of complications, with a median follow-up period of 2 months (range, 0.5-96), were obtained. Predictive factors for complications were statistically analyzed. RESULTS: Postoperative complications occurred in 49 lesions (34.8%), including 42 with sensory disturbance and 8 with motor weakness. In univariate analysis, older age, tumors originating from the upper extremity, and major motor nerve involvement were associated with a higher complication rate (p = 0.03, p = 0.003, and p = 0.001, respectively). In multivariate analysis, major motor nerve involvement was an independent predictive factor for postoperative complications (p = 0.03). Almost all complications gradually improved, but 6 out of 8 patients with motor weakness did not show full recovery at the final follow-up. CONCLUSIONS: Schwannomas originating from major motor nerves can lead to a higher risk for postoperative complications. More... »

PAGES

166

Identifiers

URI

http://scigraph.springernature.com/pub.10.1186/s12891-019-2538-8

DOI

http://dx.doi.org/10.1186/s12891-019-2538-8

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1113377841

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/30975128


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35 schema:description BACKGROUND: Schwannomas are well-encapsulated, benign neoplasms, and enucleation is a standard operation procedure. The incidence of neurological complications after surgical treatment for schwannomas of the extremities varies, and there is no consensus concerning predictive factors for complications. The aim of this study was to elucidate predictive factors for complications after surgical treatment of schwannomas that develop in the major nerves of the extremities. METHODS: A total of 139 patients with 141 schwannomas arising in major nerves were retrospectively analyzed. Data regarding preoperative clinical features, the postoperative neurological complications, and clinical course of complications, with a median follow-up period of 2 months (range, 0.5-96), were obtained. Predictive factors for complications were statistically analyzed. RESULTS: Postoperative complications occurred in 49 lesions (34.8%), including 42 with sensory disturbance and 8 with motor weakness. In univariate analysis, older age, tumors originating from the upper extremity, and major motor nerve involvement were associated with a higher complication rate (p = 0.03, p = 0.003, and p = 0.001, respectively). In multivariate analysis, major motor nerve involvement was an independent predictive factor for postoperative complications (p = 0.03). Almost all complications gradually improved, but 6 out of 8 patients with motor weakness did not show full recovery at the final follow-up. CONCLUSIONS: Schwannomas originating from major motor nerves can lead to a higher risk for postoperative complications.
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