Evidence map›Paper›PMID 41313358›Full record

ArticleJournal of neuro-oncology2025

Neoadjuvant gamma knife surgery for metastatic brain tumor: clinical use and impact on leptomeningeal seeding.

Jihwan Yoo, In-Ho Jung, Won Seok Chang, Hyun Ho Jung, Hun Ho Park, Ju Hyung Moon, Eui Hyun Kim, Seok-Gu Kang, Jong Hee Chang

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In one paragraph

Article in Journal of neuro-oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–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

2 citing papers in PubMed.

  1. Observational
  2. Article
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

9 authors.

Jihwan Yoo *Department of Neurosurgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
In-Ho Jung *Department of Neurosurgery, Dankook University College of Medicine, Cheonan, Republic of Korea.
Won Seok ChangDepartment of Neurosurgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
Hyun Ho JungDepartment of Neurosurgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
Hun Ho ParkDepartment of Neurosurgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
Ju Hyung MoonDepartment of Neurosurgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
Eui Hyun KimDepartment of Neurosurgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
Seok-Gu KangDepartment of Neurosurgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
Jong Hee ChangDepartment of Neurosurgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea. changjh@yuhs.ac.ORCID http://orcid.org/0000-0003-1509-9800

Funding

National Research Foundation of Korea RS-2023-246346Yonsei University 2025-32-0033
6 · The paper itself

Abstract

purposeThis study aimed to compare leptomeningeal seeding (LMS) incidence, local failure rates, and survival outcomes between neoadjuvant and adjuvant gamma knife surgery (GKS) in patients with brain metastases.

methodsWe retrospectively analyzed 120 patients treated at a single institution from 2008 to 2022. Overall survival (OS), progression‑free survival (PFS), LMS occurrence, local failure, and key clinical prognostic variables were compared between the neoadjuvant and adjuvant GKS groups.

resultsSeventy patients received neoadjuvant GKS, while 50 received adjuvant GKS. Baseline differences in primary tumor origin, preoperative Karnofsky Performance Score, and extracranial metastasis were statistically significant. No significant differences were observed in OS (p = 0.21), PFS (p = 0.27), radiation induced edema (p = 0.219) or local failure (p = 0.19) between groups. LMS incidence was significantly lower in the neoadjuvant group (p = 0.043), with this advantage maintained after propensity score matching (p = 0.046).

conclusionsNeoadjuvant GKS yields survival and local failure outcomes comparable to adjuvant GKS, while significantly reducing the risk of LMS. These findings support the potential clinical advantage of neoadjuvant GKS in the management of brain metastases.

Indexed as

Brain NeoplasmsMeningeal NeoplasmsNeoadjuvant TherapyNeoplasm SeedingRadiosurgeryAdultAgedFemaleFollow-Up StudiesHumansMaleMiddle AgedPrognosisRetrospective StudiesSurvival RateLeptomeningeal seedingMetastatic brain tumorNeoadjuvant GKS

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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.