Evidence map›Paper›PMID 31653805›Full record

ArticleJournal of neurosurgery2020

Safe marginal resection of atypical neurofibromas in neurofibromatosis type 1.

Charlie N Nelson, Eva Dombi, Jared S Rosenblum, Markku M Miettinen, Tanya J Lehky, Patricia O Whitcomb, Christina Hayes, Gretchen Scott, Sarah Benzo, Brigitte C Widemann and 1 more

Open access · greenAbstract read
In one paragraph

Article in Journal of neurosurgery, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. [Progress in neurosurgical treatment of neurofibromatosis type 1].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2024
    Review
  14. [Application of multimodal intraoperative neurophysiological monitoring technology in neurofibromatosis type 1 related peripheral nerve tumor surgery].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2024
    Article
  15. Early Detection of Malignant and Premalignant Peripheral Nerve Tumors Using Cell-Free DNA Fragmentomics.Clinical cancer research : an official journal of the American Association for Cancer Research · 2024
    Article
  16. Contemporary Approach to Neurofibromatosis Type 1-Associated Malignant Peripheral Nerve Sheath Tumors.American Society of Clinical Oncology educational book. American Society of Clinical Oncology. Annual Meeting · 2024
    Review
  17. Article
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 2 countries.

Charlie N Nelson1Surgical Neurology Branch.
Eva Dombi3Pediatric Oncology Branch and.
Jared S Rosenblum1Surgical Neurology Branch.
Markku M Miettinen5Laboratory of Pathology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland; and.
Tanya J Lehky6Electromyography Section, and.
Patricia O Whitcomb3Pediatric Oncology Branch and.
Christina Hayes1Surgical Neurology Branch.
Gretchen Scott1Surgical Neurology Branch.
Sarah Benzo1Surgical Neurology Branch.
Brigitte C Widemann3Pediatric Oncology Branch and.
Prashant Chittiboina1Surgical Neurology Branch.
Pediatric Oncology Group · CACenter for Cancer Research · USNational Institute of Neurological Disorders and Stroke · USNational Institutes of Health · USNortheast Ohio Medical University · US

Funding

Immunohistochemical and genomic analysis of tumorsZIABC011427 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI MIETTINEN, MARKKU · 2012 to 2025
$24.0M
Therapy for NF1-Related Tumors and other Genetic Tumor Predisposition SyndromesZIABC010801 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI WIDEMANN, BRIGITTE · 2009 to 2020
$13.8M
Neurooncology of Benign Central and Peripheral Nervous System TumorsZIANS003132 · NINDS · NATIONAL INSTITUTE OF NEUROLOGICAL DISORDERS AND STROKE · PI CHITTIBOINA, PRASHANT · 2012 to 2025
$7.8M
Intramural NIH HHS ZIA BC010801Intramural NIH HHS ZIA BC011427Intramural NIH HHS ZIA NS003132
6 · The paper itself

Abstract

objectivePatients with neurofibromatosis type 1 (NF1) are predisposed to visceral neurofibromas, some of which can progress to premalignant atypical neurofibromas (ANFs) and malignant peripheral nerve sheath tumors (MPNSTs). Though subtotal resection of ANF may prevent malignant transformation and thus deaths with no neural complications, local recurrences require reoperation. The aim of this study was to assess the surgical morbidity associated with marginal resection of targeted ANF nodules identified via preoperative serial volumetric MRI and 18F-FDG-PET imaging.

methodsThe authors analyzed clinical outcomes of 16 NF resections of 21 tumors in 11 NF1 patients treated at the NIH Clinical Center between 2008 and 2018. Preoperative volumetric growth rates and 18F-FDG-PET SUVMax (maximum standardized uptake value within the tumor) of the target lesions and any electromyographic or nerve conduction velocity abnormalities of the parent nerves were measured and assessed in tandem with postoperative complications, histopathological classification of the resected tumors, and surgical margins through Dunnett's multiple comparisons test and t-test. The surgical approach for safe marginal resection of ANF was also described.

resultsEleven consecutive NF1 patients (4 male, 7 female; median age 18.5 years) underwent 16 surgical procedures for marginal resections of 21 tumors. Preoperatively, 13 of the 14 (93%) sets of serial MRI studies and 10 of the 11 (91%) 18F-FDG-PET scans showed rapid growth (≥ 20% increase in volume per year) and avidity (SUVMax ≥ 3.5) of the identified tumor, respectively (median tumor size 48.7 cm3; median growth rate 92% per year; median SUVMax 6.45). Most surgeries (n = 14, 88%) resulted in no persistent postoperative parent nerve-related complications, and to date, none of the resected tumors have recurred. The median length of postoperative follow-up has been 2.45 years (range 0.00-10.39 years). Histopathological analysis confirmed significantly greater SUVMax among the ANFs (6.51 ± 0.83, p = 0.0042) and low-grade MPNSTs (13.8, p = 0.0001) than in benign neurofibromas (1.9).

conclusionsThis report evaluates the utility of serial imaging (MRI and 18F-FDG-PET SUVMax) to successfully detect ANF and demonstrates that safe, fascicle-sparing gross-total, extracapsular resection of ANF is possible with the use of intraoperative nerve stimulation and microdissection of nerve fascicles.

Indexed as

atypical neurofibromamarginal marginneurofibromatosis 1peripheral nerveresectionsurgery

Identifiers

PMID31653805
PMCPMC8320705
OpenAlexW2982527772

What Socratic holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.