Assessment of prognostic value and development of predictive model for prolonged lymphopenia in patients with glioblastoma following chemoradiotherapy
- Shuhei Takahashi 1,2, Kentaro Nishioka 3, Takashi Mori 2, Shigeru Yamaguchi 4, Yukitomo Ishi 4, Keiji Kobashi 3, Yoichi M Ito 5, Zen-Ichi Tanei 6, Hiromi Kanno-Okada 7, Shinya Tanaka 6,7,8, Hidefumi Aoyama 1,2
- Shuhei Takahashi 1,2, Kentaro Nishioka 3, Takashi Mori 2
- 1Department of Radiation Oncology, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo 060-8638, Japan.
- 2Department of Radiation Oncology, Hokkaido University Hospital, Kita 14, Nishi 6, Kita-ku, Sapporo 060-8648, Japan.
- 3Global Center for Biomedical Science and Engineering, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo 060-8638, Japan.
- 4Department of Neurosurgery, Faculty of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo 060-8638, Japan.
- 5Data Science Center, Promotion Unit, Institute of Health Science Innovation for Medical Care, Hokkaido University Hospital, Kita 14, Nishi 6, Kita-ku, Sapporo 060-8648, Japan.
- 6Department of Cancer Pathology, Faculty of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo 060-8638, Japan.
- 7Department of Surgical Pathology, Hokkaido University Hospital, Kita 14, Nishi 6, Kita-ku, Sapporo 060-8648, Japan.
- 8Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21, Nishi 10, Kita-ku, Sapporo 001-0021, Japan.
- 0Department of Radiation Oncology, Graduate School of Medicine, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo 060-8638, Japan.
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View abstract on PubMed
Summary
This summary is machine-generated.Prolonged lymphopenia after glioblastoma chemoradiotherapy is linked to shorter progression-free survival. Predictive factors include irradiated brain volume and patient characteristics, suggesting strategies to reduce radiation exposure may improve outcomes.
Area Of Science
- Neuro-oncology
- Radiation Oncology
- Immunology
Background
- Lymphopenia during chemoradiotherapy (CRT) for glioblastoma is a known poor prognostic factor.
- The impact of prolonged lymphopenia (PL) after CRT on glioblastoma prognosis requires further investigation.
Purpose Of The Study
- To investigate the association between PL and glioblastoma prognosis.
- To develop a predictive model for PL risk following CRT.
Main Methods
- Analysis of 87 primary glioblastoma patients undergoing postoperative CRT.
- Definition of PL as grade 2+ lymphopenia one month post-CRT.
- Survival analysis, risk factor identification, and predictive model development.
Main Results
- 41 out of 87 patients developed PL.
- PL was associated with significantly shorter progression-free survival (PFS) (8.0 vs 15.4 months).
- Brain V20Gy, gross total resection (GTR), and preoperative Karnofsky performance status (KPS) were significant risk factors for PL.
Conclusions
- Prolonged lymphopenia is a significant factor for shorter PFS in glioblastoma patients.
- A predictive model incorporating irradiated brain volume, GTR, and KPS can estimate PL risk.
- Reducing irradiated brain volume may prevent PL and potentially improve glioblastoma prognosis by preserving anti-tumor immunity.
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