Evidence map›Paper›PMID 28432590›Full record

ArticleJournal of neuro-oncology2017

Pathological analysis of the surgical margins of resected glioblastomas excised using photodynamic visualization with both 5-aminolevulinic acid and fluorescein sodium.

Hirohito Yano, Noriyuki Nakayama, Naoyuki Ohe, Kazuhiro Miwa, Jun Shinoda, Toru Iwama

Abstract read
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In one paragraph

Article in Journal of neuro-oncology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

21 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  10. Intraoperative MR Imaging during Glioma Resection.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2022
    Review
  11. Article
  12. The utilization of sodium fluorescein in pediatric brain stem gliomas: a case report and review of the literature.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2021
    Review
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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

6 authors.

Hirohito YanoDepartment of Neurosurgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan. hirohito@gifu-u.ac.jp.ORCID http://orcid.org/0000-0002-4252-4780
Noriyuki NakayamaDepartment of Neurosurgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan.
Naoyuki OheDepartment of Neurosurgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan.
Kazuhiro MiwaDepartment of Neurosurgery, Gifu Prefectural Gero Hot Spring Hospital, 2211 Mori, Gero, 509-2292, Japan.
Jun ShinodaDepartment of Neurosurgery, Chubu Medical Center for Prolonged Traumatic Brain Dysfunction, Kizawa Memorial Hospital, 639 Shimo-kobi, Kobi-cho, Minokamo, 505-8503, Japan.
Toru IwamaDepartment of Neurosurgery, Gifu University Graduate School of Medicine, 1-1 Yanagido, Gifu, 501-1194, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

During glioma resection, 5-aminolevulinic acid (5-ALA) and fluorescein sodium (Fl-Na) are used for photodynamic tumor visualization. The objective of this study was to evaluate the pathological findings of the boundary zone between the tumor and adjacent normal brain in glioblastoma patients undergoing simultaneous double staining with 5-ALA and Fl-Na during surgery. Eight patients received 5-ALA (20 mg/kg orally) before the induction of general anesthesia, and Fl-Na (20 mg/kg) was administered intravenously before the dural incision was performed. The tumor bulk was removed under the guidance of Fl-Na staining alone using conventional white light. Subsequently, residual tumor was removed under the guidance of both fluorescent agents within functionally safe limits until both were visibly undetectable. Twenty specimens exhibiting different staining intensities of both agents were obtained. The vessel index (VI) was calculated from CD31 immunohistochemistry (IHC) samples. Boundary zone tumor cells were detected by IHC for olig2, and were expressed as the olig2 index (OLI). The VI was significantly higher in Fl-Na-positive areas than in Fl-Na-negative areas (p = 0.0005). In contrast, the OLI was significantly higher in 5-ALA-positive areas than in 5-ALA-negative areas (p = 0.0149). 5-ALA-positive/Fl-Na negative areas were observed in 7 patients. These findings indicate that Fl-Na accumulates in areas with a disrupted blood-brain barrier, and that 5-ALA fluorescence is dependent on tumor cell protoporphyrin IX metabolism. In conclusion, 5-ALA was better for detecting tumor cells in the boundary zone than was Fl-Na. Of note, tumor cells existed outside the fluorescence-stained boundaries of both agents.

Indexed as

AdultAgedAminolevulinic AcidBrain NeoplasmsFemaleFluoresceinGlioblastomaHumansKi-67 AntigenMagnetic Resonance ImagingMaleMargins of ExcisionMiddle AgedNeurosurgical ProceduresOligodendrocyte Transcription Factor 2Photosensitizing AgentsAminolevulinic AcidFluoresceinKi-67 AntigenOligodendrocyte Transcription Factor 2Photosensitizing AgentsPlatelet Endothelial Cell Adhesion Molecule-15-Aminolevulinic acidCD31Fluorescein sodiumGlioblastomaKi-67Olig2

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Registered trials

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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 OpenQuestion graph.