Cancer Research and Treatment

Original Articles

Outcomes of Stereotactic Body Radiation Therapy for Large Uveal Melanoma: A Retrospective Analysis of Asian Population: Jong Won Park, Seowoong Jun, Ki Chang Keum, Christopher Seungkyu Lee, Kyung Hwan Kim; Received June 20, 2024 Accepted December 28, 2024 Published online December 31, 2024; DOI: https://doi.org/10.4143/crt.2024.580 [Accepted]

Abstract PDF: Purpose
To investigate the clinical outcomes of stereotactic body radiation therapy (SBRT) in patients with large uveal melanoma (UM).
Materials and Methods
We conducted a retrospective review of 64 consecutive patients with UM treated with Cyberknife at Yonsei Cancer Center from September 2015 to October 2021. The median radiation dose was 60 Gy (range 48-64 Gy) administered in four fractions every alternate day. The local failure-free rate (LFFR), distant metastasis-free rate (DMFR), progression-free survival (PFS), and overall survival (OS) were assessed using the Kaplan–Meier method and log-rank test. Cox regression analysis was performed to analyze the predictive factors affecting survival outcomes and the factors associated with vision loss.
Results
The median tumor diameter and height were 11.5 mm and 8.4 mm, respectively. After a median follow-up of 32.1 months (range 4.9–89.9), the 3-year LFFR, DMFR, PFS, and OS were 89.5%, 70.5%, 65.5%, and 89.4%, respectively. Enucleation was performed in 13 (20.3%) patients, with three cases attributed to disease progression. A larger tumor diameter was associated with significantly worse DMFR (HR=1.35, p=0.015) and OS (HR=1.49, p=0.026) in the multivariate analysis. Regarding visual prognosis, 41 (64.1%) patients had baseline visual acuity ≥20/200, but only 4 (6.3%) patients maintained visual acuity ≥20/200 by the final follow-up. Initial visual acuity ≥20/40 (HR 0.45, p=0.030) was the single favorable significant factor predicting visual retention ≥20/200 in multivariate analysis.
Conclusion
SBRT using CyberKnife demonstrated a comparable local control rate to that observed in historical studies for patients with large UM. Distant metastasis and treatment-related ocular toxicity remain the limitations of this treatment.

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Lung and Thoracic cancer

Upfront Stereotactic Radiosurgery or Fractionated Stereotactic Radiotherapy in Elderly Patients with Brain Metastases from Non–Small Cell Lung Cancer: A Retrospective Analysis of a 10-Year Bi-institutional Experience: Myungsoo Kim, Jihye Cha, Hun Jung Kim, Woo Chul Kim, Jeongshim Lee; Cancer Res Treat. 2025;57(1):47-56. Published online July 3, 2024; DOI: https://doi.org/10.4143/crt.2024.223

Abstract PDF PubReader ePub: Purpose
Stereotactic radiosurgery (SRS) or fractionated stereotactic radiotherapy (FSRT) are increasingly used as initial therapies for brain metastases (BM). We aimed to assess the outcomes of SRS/FSRT in patients aged ≥ 65 years who had 1-10 BM from non–small cell lung cancer (NSCLC).
Materials and Methods
We retrospectively reviewed 91 elderly NSCLC patients with 222 BM who were treated with SRS/FSRT at two institutions between 2010 and 2020. The primary endpoint was overall survival (OS) after SRS/FSRT. In addition, in-field local control (IFLC) within the treated field was evaluated. Statistical analysis was performed to identify the prognostic factors affecting OS and IFLC.
Results
During a median follow-up of 18 months, the median OS was 32 months. The 1- and 2-year survival rates were 69.8% and 56.1%, respectively. In multivariate analysis, the NSCLC-specific graded prognostic assessment (GPA) score (p=0.007) and administration of systemic therapy (p=0.039) were defined as prognosticators affecting OS. The median IFLC period was 31 months, and the 1- and 2-year IFLC rates were 75.9% and 57.6%, respectively. The total BM volume (p=0.042) significantly affected IFLC. No severe adverse events were reported after SRS/FSRT.
Conclusion
SRS/FSRT is an effective upfront treatment option for BM arising from NSCLC in elderly patients, with a good OS without severe side effects. Higher GPA score and active systemic treatment were associated with improved OS, indicating that elderly patients are significant candidates for SRS/FSRT.

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Clinical Effect of Endosonography on Overall Survival in Patients with Radiological N1 Non–Small Cell Lung Cancer: Bo-Guen Kim, Byeong-Ho Jeong, Goeun Park, Hong Kwan Kim, Young Mog Shim, Sun Hye Shin, Kyungjong Lee, Sang-Won Um, Hojoong Kim, Jong Ho Cho; Cancer Res Treat. 2024;56(2):502-512. Published online December 4, 2023; DOI: https://doi.org/10.4143/crt.2023.840

Abstract PDF Supplementary Material PubReader ePub: Purpose
It is unclear whether performing endosonography first in non–small cell lung cancer (NSCLC) patients with radiological N1 (rN1) has any advantages over surgery without nodal staging. We aimed to compare surgery without endosonography to performing endosonography first in rN1 on the overall survival (OS) of patients with NSCLC.
Materials and Methods
This is a retrospective analysis of patients with rN1 NSCLC between 2013 and 2019. Patients were divided into ‘no endosonography’ and ‘endosonography first’ groups. We investigated the effect of nodal staging through endosonography on OS using propensity score matching (PSM) and multivariable Cox proportional hazard regression analysis.
Results
In the no endosonography group, pathologic N2 occurred in 23.0% of patients. In the endosonography first group, endosonographic N2 and N3 occurred in 8.6% and 1.6% of patients, respectively. Additionally, 51 patients were pathologic N2 among 249 patients who underwent surgery and mediastinal lymph node dissection (MLND) in endosonography first group. After PSM, the 5-year OSs were 68.1% and 70.6% in the no endosonography and endosonography first groups, respectively. However, the 5-year OS was 80.2% in the subgroup who underwent surgery and MLND of the endosonography first group. Moreover, in patients receiving surgical resection with MLND, the endosonography first group tended to have a better OS than the no endosonography group in adjusted analysis using various models.
Conclusion
In rN1 NSCLC, preoperative endosonography shows better OS than surgery without endosonography. For patients with rN1 NSCLC who are candidates for surgery, preoperative endosonography may help improve survival through patient selection.

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Aggressive Local Ablative Radiotherapy Mitigates Progression Risk in Oligometastatic Lung Adenocarcinoma: Gowoon Yang, Kyung Hwan Kim, Chang Geol Lee, Min Hee Hong, Hye Ryun Kim, Yeona Cho, Hong In Yoon; Cancer Res Treat. 2024;56(1):115-124. Published online August 29, 2023; DOI: https://doi.org/10.4143/crt.2023.600

Abstract PDF Supplementary Material PubReader ePub: Purpose
This study aimed to determine the role of local ablative radiotherapy (LART) in oligometastatic/oligoprogressive lung adenocarcinoma.
Materials and Methods
Patients (n=176) with oligometastatic lung adenocarcinoma treated with LART were identified, and those treated with LART at the initial diagnosis of synchronous oligometastatic disease (OMD group) or treated with LART when they presented with repeat oligoprogression (OPD group) were included.
Results
In the OMD group (n=54), the 1- and 3-year progression-free survival (PFS) were 50.9% and 22.5%, respectively, whereas the 1- and 3-year overall survival in the OPD group were 75.9% and 58.1%, respectively. Forty-one patients (75.9%) received LART at all gross disease sites. Tyrosine kinase inhibitor (TKI) use and all-metastatic site LART were significant predictors of higher PFS (p=0.018 and p=0.046, respectively). In patients treated with TKIs at the time of LART (n=23) and those treated with all-metastatic site LART, the 1-year PFS was 86.7%, while that of patients not treated with all-metastatic site LART was 37.5% (p=0.006). In the OPD group (n=122), 67.2% of the patients (n=82) maintained a systemic therapy regimen after LART. The cumulative incidence of changing systemic therapy was 39.6%, 62.9%, and 78.5% at 6 months, 1 year, and 2 years after LART, respectively.
Conclusion
Aggressive LART can be an option to improve survival in patients with oligometastatic disease. Patients with synchronous oligometastatic disease receiving TKI and all-metastatic site LART may have improved PFS. In patients with repeat oligoprogression, LART might potentially extend survival by delaying the need to change the systemic treatment regimen.

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Sublobar Resection versus Stereotactic Body Radiation Therapy for Clinical Stage I Non–Small Cell Lung Cancer: A Study Using Data from the Korean Nationwide Lung Cancer Registry: Jeonghee Yun, Jong Ho Cho, Tae Hee Hong, Kyungmi Yang, Yong Chan Ahn, Hong Kwan Kim, Korean Association for Lung Cancer, Korea Central Cancer Registry; Cancer Res Treat. 2023;55(4):1171-1180. Published online April 17, 2023; DOI: https://doi.org/10.4143/crt.2022.1581

Abstract PDF Supplementary Material PubReader ePub: Purpose
Stereotactic body radiotherapy (SBRT) had been increasingly recognized as a favorable alternative to surgical resection in patients with high risk for surgery. This study compared survival outcomes between sublobar resection (SLR) and SBRT for clinical stage I non–small cell lung cancer (NSCLC).
Materials and Methods
Data were obtained from the Korean Association of Lung Cancer Registry, a sampled nationwide database. This study retrospectively reviewed 382 patients with clinical stage I NSCLC who underwent curative SLR or SBRT from 2014 to 2016.
Results
Of the patients, 43 and 339 underwent SBRT and SLR, respectively. Patients in the SBRT group were older and had worse pulmonary function. The 3-year overall survival (OS) rate was significantly better in the SLR group compared with the SBRT group (86.6% vs. 57%, log-rank p < 0.001). However, after adjusting for age, sex, tumor size, pulmonary function, histology, smoking history, and adjuvant therapy, treatment modality was not an independent prognostic factor for survival (hazard ratio, 0.99; 95% confidence interval, 0.43 to 2.77; p=0.974). We performed subgroup analysis in the following high-risk populations: patients who were older than 75 years; patients who were older than 70 years and had diffusing capacity of lung for carbon monoxide ≤ 80%. In each subgroup, there were no differences in OS and recurrence-free survival between patients who underwent SLR and those who received SBRT.
Conclusion
In our study, there were no significant differences in terms of survival or recurrence between SBRT and SLR in medically compromised stage I NSCLC patients. Our findings suggest that SBRT could be considered as a potential treatment option for selected patients.

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Clinical Outcome of Stereotactic Body Radiotherapy in Patients with Early-Stage Lung Cancer with Ground-Glass Opacity Predominant Lesions: A Single Institution Experience: Jeong Yun Jang, Su Ssan Kim, Si Yeol Song, Young Seob Shin, Sei Won Lee, Wonjun Ji, Chang-Min Choi, Eun Kyung Choi; Cancer Res Treat. 2023;55(4):1181-1189. Published online March 21, 2023; DOI: https://doi.org/10.4143/crt.2022.1656

Abstract PDF Supplementary Material PubReader ePub

Purpose
The detection rate of early-stage lung cancer with ground-glass opacity (GGO) has increased, and stereotactic body radiotherapy (SBRT) has been suggested as an alternative to surgery in inoperable patients. However, reports on treatment results are limited. Therefore, we performed a retrospective study to investigate the clinical outcome after SBRT in patients with early-stage lung cancer with GGO-predominant tumor lesions at a single institution.
Materials and Methods
This study included 89 patients with 99 lesions who were treated with SBRT for lung cancer with GGO-predominant lesions that had a consolidation-to-tumor ratio of ≤0.5 at Asan Medical Center between July 2016 and July 2021. A median total dose of 56.0 Gy (range, 48.0–60.0) was delivered using 10.0–15.0 Gy per fraction.
Results
The overall follow-up period for the study was median 33.0 months (range, 9.9 to 65.9 months). There was 100% local control with no recurrences in any of the 99 treated lesions. Three patients had regional recurrences outside of the radiation field, and three had distant metastasis. The 1-year, 3-year, and 5-year overall survival rates were 100.0%, 91.6%, and 82.8%, respectively. Univariate analysis revealed that advanced age and a low level of diffusing capacity of the lungs for carbon monoxide were significantly associated with overall survival. There were no patients with grade ≥3 toxicity.
Conclusion
SBRT is a safe and effective treatment for patients with GGO-predominant lung cancer lesions and is likely to be considered as an alternative to surgery.

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Recent Advancements in Minimally Invasive Surgery for Early Stage Non-Small Cell Lung Cancer: A Narrative Review
Jibran Ahmad Khan, Ibrahem Albalkhi, Sarah Garatli, Marcello Migliore
Journal of Clinical Medicine.2024; 13(11): 3354. CrossRef
The clinical effect of thoracoscopic segmentectomy in the treatment of lung malignancies less than 2CM in diameter
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Radiation Oncology.2024;[Epub] CrossRef

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General

Role of Local Treatment for Oligometastasis: A Comparability-Based Meta-Analysis: Chai Hong Rim, Won Kyung Cho, Jong Hoon Lee, Young Seok Kim, Yang-Gun Suh, Kyung Hwan Kim, Eui Kyu Chie, Yong Chan Ahn, The Oligometastasis Working Group, Korea Cancer Association; Cancer Res Treat. 2022;54(4):953-969. Published online August 16, 2022; DOI: https://doi.org/10.4143/crt.2022.329

Abstract PDF Supplementary Material PubReader ePub

Purpose
We intend to investigate the oncological efficacy and feasibility of local consolidative therapy (LCT) through a meta-analysis method.
Materials and Methods
Four databases including PubMed, MEDLINE, Embase, and Cochrane library were searched. Target studies are controlled trials comparing outcomes of LCT versus a control group. Primary endpoints are overall survival (OS) and progression-free survival (PFS).
Results
A total of 54 studies involving 7,242 patients were included. Pooled analyses showed that the LCT arm could achieve improved OS with pooled odds ratio of 2.896 (95% confidence interval [CI], 2.377 to 3.528; p < 0.001). Regarding PFS, pooled analyses showed pooled odds ratio of 3.045 (95% CI, 2.356 to 3.937; p < 0.001) in favor of the LCT arm. In the subgroup analyses including the studies with reliable comparability (e.g. randomized studies or intentionally matched studies without significant favorable prognosticator in LCT arms), pooled odds ratio was 2.548 (95% CI, 1.808 to 3.591; p < 0.001) favoring the LCT arm regarding OS. Regarding PFS, pooled OR was 2.656 (95% CI, 1.713 to 4.120; p < 0.001) which also favored the LCT arm. Subgroup analyses limited to the randomized controlled trials (RCT) were also performed and pooled odds ratios on OS and PFS were 1.535 (95% CI, 1.082 to 2.177; p=0.016) and 1.668 (95% CI, 1.187 to 2.344; p=0.003). The rates of grade ≥ 3 complications related to LCT was mostly low (< 10%) and not significantly higher compared to the control arm.
Conclusion
Pooled analyses results of all included studies, selected studies with reliable comparability, and RCT’s demonstrated the survival benefit of LCT. These consistent results suggest that LCT was beneficial to the patients with oligometastasis.

Citations

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Identifying Trends in Oncology Research through a Bibliographic Analysis of Cancer Research and Treatment
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The Society of Thoracic Surgeons (STS) Clinical Practice Guideline on Surgical Management of Oligometastatic Non-small Cell Lung Cancer
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The Annals of Thoracic Surgery.2025;[Epub] CrossRef
Aggressive Local Ablative Radiotherapy Mitigates Progression Risk in Oligometastatic Lung Adenocarcinoma
Gowoon Yang, Kyung Hwan Kim, Chang Geol Lee, Min Hee Hong, Hye Ryun Kim, Yeona Cho, Hong In Yoon
Cancer Research and Treatment.2024; 56(1): 115. CrossRef
MR-guided stereotactic radiotherapy of infra-diaphragmatic oligometastases: Evaluation of toxicity and dosimetric parameters
Mette van Overeem Felter, Pia Krause Møller, Mirjana Josipovic, Susanne Nørring Bekke, Uffe Bernchou, Eva Serup-Hansen, Kasper Madsen, Parag J. Parikh, Joshua Kim, Poul Geertsen, Claus P. Behrens, Ivan R. Vogelius, Mette Pøhl, Tine Schytte, Gitte Fredberg
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Impact of high dose radiotherapy for breast tumor in locoregionally uncontrolled stage IV breast cancer: a need for a risk-stratified approach
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Gynecologic cancer

Effect of BRCA1/2 Mutational Status on Survival Outcomes According to Secondary Cytoreductive Surgery and Maintenance Therapy in Platinum-Sensitive Relapsed Ovarian Cancer: A Real-World Evidence Study: Se Ik Kim, Hyunji Lim, Hee Seung Kim, Hyun Hoon Chung, Jae-Weon Kim, Noh Hyun Park, Yong-Sang Song, Maria Lee; Cancer Res Treat. 2023;55(1):245-257. Published online July 19, 2022; DOI: https://doi.org/10.4143/crt.2022.232

Abstract PDF Supplementary Material PubReader ePub: Purpose
This study aimed to investigate the impact of BRCA1/2 mutational status on survival outcomes in patients with platinum-sensitive relapsed (PSR) epithelial ovarian cancer (EOC).
Materials and Methods
We retrospectively identified patients who received secondary treatment for PSR EOC at our institution between January 2007 and June 2021 and who underwent BRCA1/2 gene testing by either germline or somatic methods. The association between BRCA1/2 mutational status and survival outcomes was evaluated. Both secondary cytoreductive surgery (CRS) and maintenance therapy were stratified considering real-world clinical practice.
Results
Of 262 patients, 91 (34.7%) and 171 (65.3%) were assigned to BRCA1/2 mutation and wild-type groups, respectively. The two groups had similar proportions of patients undergoing secondary CRS (26.4% vs. 32.7%, p=0.286) and maintenance therapy (54.9% vs. 46.2%, p=0.178). Overall, no differences in progression-free survival (PFS; median, 19.7 vs. 15.1 months, p=0.120) and overall survival (OS; p=0.400) were observed between the two groups. In multivariate analyses, BRCA1/2 mutational status was not associated with PFS (adjusted hazard ratio, 0.816; 95% confidence interval, 0.596 to 1.119; p=0.207). BRCA1/2 mutational status did not affect PFS among patients who underwent secondary CRS (n=80) and among those who did not (n=182) (p=0.074 and p=0.222, respectively). PFS did not differ in the BRCA1/2 mutational status among the patients who received bevacizumab maintenance (n=90, p=0.992).
Conclusion
In this real-world evidence study, BRCA1/2 mutational status itself was not associated with PFS and OS in PSR EOC, which was consistent with whether secondary CRS or not and with bevacizumab maintenance.

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Breast cancer

Effect of Postoperative Radiotherapy after Primary Tumor Resection in De Novo Stage IV Breast Cancer: A Multicenter Retrospective Study (KROG 19-02): Yeon Joo Kim, Yeon-Joo Kim, Yong Bae Kim, Ik Jae Lee, Jeanny Kwon, Kyubo Kim, Jihye Cha, Myungsoo Kim, In Young Jo, Jung Hoon Kim, Jaehyeon Park, Jin Hee Kim, Juree Kim, Kyung Hwan Shin, Su Ssan Kim; Cancer Res Treat. 2022;54(2):478-487. Published online July 12, 2021; DOI: https://doi.org/10.4143/crt.2021.632

Abstract PDF Supplementary Material PubReader ePub

Purpose
This study aimed to investigate the impact of postoperative radiotherapy (PORT) in de novo metastatic breast cancer (dnMBC) patients undergoing planned primary tumor resection (PTR) and to identify the subgroup of patients who would most benefit from PORT.
Materials and Methods
This study enrolled 426 patients with dnMBC administered PTR alone or with PORT. The primary and secondary outcomes were overall and progression-free survival (OS and PFS), respectively.
Results
The median follow-up time was 53.7 months (range, 3.1 to 194.4). The 5-year OS and PFS rates were 73.2% and 32.0%, respectively. For OS, clinical T3/4 category, triple-negative breast cancer (TNBC), postoperative chemotherapy alone were significantly poor prognostic factors, and administration of PORT failed to show its significance. Regarding PFS, PORT was a favorable prognostic factor (hazard ratio, 0.64; 95% confidence interval, 0.50 to 0.82; p < 0.001), in addition to T1/2 category, ≤ 5 metastases, and non-TNBC. According to the multivariate analyses of OS in the PORT group, we divided the patients into three groups (group 1, T1/2 and non-TNBC [n=193]; group 2, T3/4 and non-TNBC [n=171]; and group 3, TNBC [n=49]), and evaluated the effect of PORT. Although PORT had no significance for OS in all subgroups, it was a significant factor for good prognosis regarding PFS in groups 1 and 2, not in group 3.
Conclusion
PORT was associated with a significantly better PFS in patients with dnMBC who underwent PTR. Patients with clinical T1/2 category and non-TNBC benefited most from PORT, while those with TNBC showed little benefit.

Citations

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Letter to the editor for the article“Tumor margin irregularity degree is an important preoperative predictor of adverse pathology for clinical T1/2 renal cell carcinoma and the construction of predictive model”
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Tian Yang, Xiaorong Zhong, Jun Wang, Zhongzheng Xiang, Yuanyuan Zeng, Siting Yu, Zelei Dai, Ningyue Xu, Ting Luo, Lei Liu
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Impact of high dose radiotherapy for breast tumor in locoregionally uncontrolled stage IV breast cancer: a need for a risk-stratified approach
Nalee Kim, Haeyoung Kim, Won Park, Won Kyung Cho, Tae Gyu Kim, Young-Hyuck Im, Jin Seok Ahn, Yeon Hee Park, Ji-Yeon Kim
Radiation Oncology.2023;[Epub] CrossRef
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Head and Neck cancer

Radiotherapy versus Surgery in Early-Stage HPV-Positive Oropharyngeal Cancer: Dong-Yun Kim, Hong-Gyun Wu, Jin Ho Kim, Joo Ho Lee, Soon-Hyun Ahn, Eun-Jae Chung, Keun-Yong Eom, Young Ho Jung, Woo-Jin Jeong, Tack-Kyun Kwon, Suzy Kim, Chan Woo Wee; Cancer Res Treat. 2022;54(2):406-416. Published online June 23, 2021; DOI: https://doi.org/10.4143/crt.2021.441

Abstract PDF Supplementary Material PubReader ePub

Purpose
This study aimed to compare the outcomes of primary radiotherapy (RT) versus surgery in early-stage human papilloma virus–positive oropharyngeal squamous cell carcinoma (hpv+OPC), and investigate the preoperative clinical factors that can predict the requirement for postoperative adjuvant treatment.
Materials and Methods
This multicenter study included 166 patients with American Joint Committee on Cancer 8th edition-Stages I-II hpv+OPC. Sixty (36.1%) and 106 (63.9%) patients underwent primary (concurrent chemo)radiotherapy [(CC)RT] and surgery, respectively. Seventy-eight patients (73.6%) in the surgery group received postoperative (CC)RT.
Results
With a median follow-up of 45.6 months for survivors, the 2-year overall survival (OS), progression-free survival (PFS), and locoregional control (LC) for RT/surgery were 97.8%/96.4%, 91.1%/92.0%, and 92.9%/93.3%, respectively. In multivariate analyses, patients with synchronous radiologic extranodal extension and conglomeration (ENEcong) of metastatic lymph nodes (LNs) showed significantly poorer OS (p=0.047), PFS (p=0.001), and LC (p=0.003). In patients undergoing primary surgery, two or more clinically positive LN metastases (odds ratio [OR], 5.15; p=0.004) and LN metastases with ENEcong (OR, 3.75; p=0.009) were predictors of postoperative chemoradiotherapy. No patient in the primary RT group demonstrated late severe toxicity whereas three (2.8%), one (0.9%), and one (0.9%) patient in the surgery group showed grade 3 dysphagia, grade 3 xerostomia, and fatal oral cavity bleeding.
Conclusion
We found no differences in OS, PFS, and LC between upfront RT and surgery in stage I-II hpv+OPC which warrants comparison through a prospective trial in the treatment de-escalation era. However, most early-stage hpv+OPC patients undergoing surgery received adjuvant (CC)RT. Pretreatment LN findings were prognostic and predictive for adjuvant treatment.

Citations

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Definitive radio(chemo)therapy versus upfront surgery in the treatment of HPV-related localized or locally advanced oropharyngeal squamous cell carcinoma
Jérémy Baude, Caroline Guigou, David Thibouw, Noémie Vulquin, Mireille Folia, Guillaume Constantin, Jihane Boustani, Christian Duvillard, Sylvain Ladoire, Gilles Truc, Aurélie Bertaut, Cédric Chevalier, Scott M. Langevin
PLOS ONE.2024; 19(7): e0307658. CrossRef
INFLUENCE OF CONFORMAL RADIOTHERAPY IN COMBINATION WITH RADIOMODIFIERS ON THE CONTENT OF VEGF, COX-2, AND PGE-2 IN BLOOD SERUM OF PATIENTS WITH HEAD AND NECK SQUAMOUS CELL CARCINOMA
N. MITRYAYEVA, L. GREBINYK, S. ARTIUKH, N. BILOZOR, V. STARENKIY
Experimental Oncology.2024; 46(3): 253. CrossRef
Assessment of Radiologic Extranodal Extension Using Combinatorial Analysis of Nodal Margin Breakdown and Metastatic Burden in Oropharyngeal Cancer
Sungryeal Kim, Hannah Park, Se Hyun Yeou, Jin Roh, Yoo Seob Shin, Chul-Ho Kim, Eun Ju Ha, Jeon Yeob Jang
Cancers.2023; 15(13): 3276. CrossRef
Expanding the role of combined immunochemotherapy and immunoradiotherapy in the management of head and neck cancer (Review)
Chun Wei, Xiaojun Lan, Maona Qiu, Ran Cui, Qiuxia Fu, Shafiu Umar Shinge, Tobias Muluh, Ou Jiang
Oncology Letters.2023;[Epub] CrossRef

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Oncological and Functional Outcomes of Larynx-preserving Surgery for Hypopharyngeal Cancer: A Comparison with Definitive Radiation-based Treatment: Donghyeok Kim, Nalee Kim, Sungmin Koh, Man Ki Chung, Young-Ik Son, Dongryul Oh, Han-Sin Jeong, Yong Chan Ahn; Cancer Res Treat. 2022;54(1):84-95. Published online March 26, 2021; DOI: https://doi.org/10.4143/crt.2020.1197

Abstract PDF Supplementary Material PubReader ePub

Purpose
Larynx-preserving surgery (LPS) have recently gained popularity and achieved comparable oncologic outcomes to conventional radical surgery for localized hypopharyngeal cancer (HPC). In the current study, the role of LPS has been assessed thoroughly in comparison with upfront radiation therapy (RT).
Materials and Methods
We retrospectively reviewed 185 candidates for LPS with cT1-2 disease; 59 patients underwent upfront LPS while 126 patients received upfront RT, respectively. Oncological and functional outcomes were investigated and compared.
Results
Following LPS, safe margin (≥ 5 mm) was achieved in 37.3% of patients. Overall, better clinical outcomes at 5 years were achieved following upfront LPS than those following upfront RT: overall survival (OS) (72.7% vs. 59.0%, p=0.045), disease-free survival (DFS) (59.8% vs. 45.0%, p=0.039), and functional laryngeal preservation (100% vs. 89.7%, p=0.010). Although similar outcomes were observed in patients with cT1 disease, better 5-year DFS was achieved following upfront LPS in patients with cT2 disease (57.0% vs. 36.4%, p=0.023) by virtue of better local control. Despite frequent cN2-3 disease in upfront LPS group, comparable outcomes were observed between upfront RT and LPS group. However, multivariable analyses revealed that performance status and double primary cancer diagnosed within 6 months of HPC diagnosis affected OS significantly, while treatment modality per se did not.
Conclusion
Although upfront LPS could provide better local control than upfront RT in patients with cT2 disease, overall outcomes were comparable following either modality. Treatment selection of larynx-preserving approach for HPC should be individualized based on tumor and patient factors.

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In Reply to Liu and Luo
Kangpyo Kim, Yong Chan Ahn
International Journal of Radiation Oncology*Biology*Physics.2024; 118(1): 308. CrossRef
The role and clinical significance of microRNA-29a-3p in the development of hypopharyngeal carcinoma
Tao Liu, Detao Ding, Wei Wang, Yungang Wu, Dengdian Ma, Miaomiao Liu, Ziqiao Tan, Jing Yao, Xiaoyu Li
Brazilian Journal of Otorhinolaryngology.2023; 89(3): 401. CrossRef
Survival and swallowing function outcome impact factors analysis of surgery-oriented comprehensive treatment for hypopharyngeal cancer in a series of 122 patients
Wan-Xin Li, Yan-Bo Dong, Cheng Lu, Patrick J. Bradley, Liang-Fa Liu
Ear, Nose & Throat Journal.2022; 101(8): 532. CrossRef

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Lung Cancer

Prognostic Factor and Clinical Outcome in Stage III Non-Small Cell Lung Cancer: A Study Based on Real-World Clinical Data in the Korean Population: Ho Cheol Kim, Wonjun Ji, Jae Cheol Lee, Hyeong Ryul Kim, Si Yeol Song, Chang-Min Choi, Korean Association for Lung Cancer, Korea Central Cancer Registry; Cancer Res Treat. 2021;53(4):1033-1041. Published online February 16, 2021; DOI: https://doi.org/10.4143/crt.2020.1350

Abstract PDF Supplementary Material PubReader ePub

Purpose
The optimal treatment for patients with stage III non-small cell lung cancer (NSCLC) remains controversial. This study aimed to investigate prognostic factors and clinical outcome in stage III NSCLC using real-world clinical data in the Korean population.
Materials and Methods
Among 8,110 patients with lung cancer selected from 52 hospitals in Korea during 2014-2016, only patients with stage III NSCLC were recruited and analyzed. A standardized protocol was used to collect clinical information and cox proportional hazards models were used to identify risk factors for mortality.
Results
A total of 1,383 patients (46.5% had squamous cell carcinoma and 40.9% had adenocarcinoma) with stage III NSCLC were enrolled, and their median age was 70 years. Regarding clinical stage, 548 patients (39.6%) had stage IIIA, 517 (37.4%) had stage IIIB, and 318 (23.0%) had stage IIIC. Pertaining to the initial treatment method, the surgery group (median survival period: 36 months) showed better survival outcomes than the non-surgical treatment group (median survival period: 18 months, p=0.001) in patients with stage IIIA. Moreover, among patients with stage IIIB and stage IIIC, those who received concurrent chemotherapy and radiation therapy (CCRT, median survival period: 24 months) showed better survival outcomes than those who received chemotherapy (median survival period: 11 months), or radiation therapy (median survival period: 10 months, p<0.001).
Conclusion
While surgery might be feasible as the initial treatment option in patients with stage IIIA NSCLC, CCRT showed a beneficial role in patients with stage IIIB and IIIC NSCLC.

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Jiyun Lee, Hee Kyung Ahn, Sang‐We Kim, Ji‐Youn Han, Sung Sook Lee, Hyung Soon Park, Hyun Woo Lee, Joo‐Hang Kim, Eunhan Cho, Reto Huggenberger, Byoung Chul Cho
Cancer Medicine.2024;[Epub] CrossRef
Contribution of Enhanced Locoregional Control to Improved Overall Survival with Consolidative Durvalumab after Concurrent Chemoradiotherapy in Locally Advanced Non–Small Cell Lung Cancer: Insights from Real-World Data
Jeong Yun Jang, Si Yeol Song, Young Seob Shin, Ha Un Kim, Eun Kyung Choi, Sang-We Kim, Jae Cheol Lee, Dae Ho Lee, Chang-Min Choi, Shinkyo Yoon, Su Ssan Kim
Cancer Research and Treatment.2024; 56(3): 785. CrossRef
Glucose metabolic heterogeneity correlates with pathological features and improves survival stratification of resectable lung adenocarcinoma
Yu-Hung Chen, Yen-Chang Chen, Kun-Han Lue, Sung-Chao Chu, Bee-Song Chang, Ling-Yi Wang, Ming-Hsun Li, Chih-Bin Lin
Annals of Nuclear Medicine.2023; 37(2): 139. CrossRef
The combined tumor-nodal glycolytic entropy improves survival stratification in nonsmall cell lung cancer with locoregional disease
Yu-Hung Chen, Kun-Han Lue, Sung-Chao Chu, Bee-Song Chang, Chih-Bin Lin
Nuclear Medicine Communications.2023; 44(1): 100. CrossRef
Prognostic value of pretherapeutic FDG PET/CT in non-small cell lung cancer with pulmonary lymphangitic carcinomatosis
Yong-Jin Park, Yunjoo Im, O. Jung Kwon, Joungho Han, Myung-Ju Ahn, Jhingook Kim, Sang-Won Um, Joon Young Choi
Scientific Reports.2023;[Epub] CrossRef
A Propensity-Matched Retrospective Comparative Study with Historical Control to Determine the Real-World Effectiveness of Durvalumab after Concurrent Chemoradiotherapy in Unresectable Stage III Non-Small Cell Lung Cancer
Cheol-Kyu Park, Nakyung Jeon, Hwa-Kyung Park, Hyung-Joo Oh, Young-Chul Kim, Ha-Lim Jeon, Yong-Hyub Kim, Sung-Ja Ahn, In-Jae Oh
Cancers.2023; 15(5): 1606. CrossRef
Association between clinical outcomes and local treatment in stage IV non‐small cell lung cancer patients with single extrathoracic metastasis
Jeong Uk Lim, Hye Seon Kang, Ah Young Shin, Chang Dong Yeo, Chan Kwon Park, Sang Haak Lee, Seung Joon Kim
Thoracic Cancer.2022; 13(9): 1349. CrossRef
Conversion therapy from unresectable stage IIIC non-small-cell lung cancer to radical surgery via anti-PD-1 immunotherapy combined with chemotherapy and anti-angiogenesis: A case report and literature review
Guohua Jia, Shuimei Zhou, Tangpeng Xu, Yabing Huang, Xiangpan Li
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A phase II, multicenter study of lazertinib as consolidation therapy in patients with locally advanced, unresectable, EGFR mutation‐positive non‐small cell lung cancer (stage III) who have not progressed following definitive, platinum‐based, chemoradiatio
Juwhan Choi, Jeong Eun Lee, Chang‐Min Choi, In‐Jae Oh, Kye Young Lee, Tae Won Jang, Seung Hyeun Lee, Eun Young Kim, Dong Won Park, Sun Hyo Park, Sung Yong Lee
Thoracic Cancer.2022; 13(23): 3431. CrossRef
Prognostic Value of Combing Primary Tumor and Nodal Glycolytic–Volumetric Parameters of 18F-FDG PET in Patients with Non-Small Cell Lung Cancer and Regional Lymph Node Metastasis
Yu-Hung Chen, Sung-Chao Chu, Ling-Yi Wang, Tso-Fu Wang, Kun-Han Lue, Chih-Bin Lin, Bee-Song Chang, Dai-Wei Liu, Shu-Hsin Liu, Sheng-Chieh Chan
Diagnostics.2021; 11(6): 1065. CrossRef

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Gynecologic cancer

Nationwide Comparison of Surgical and Oncologic Outcomes in Endometrial Cancer Patients Undergoing Robotic, Laparoscopic, and Open Surgery: A Population-Based Cohort Study: Kyung-Jin Eoh, Eun-Ji Nam, Sang-Wun Kim, Minkyung Shin, Stella J-H Kim, Jung-Ae Kim, Yong-Tae Kim; Cancer Res Treat. 2021;53(2):549-557. Published online October 22, 2020; DOI: https://doi.org/10.4143/crt.2020.802

Abstract PDF Supplementary Material PubReader ePub

Purpose
Population-based comparisons between minimally invasive surgery (MIS) (robotic surgery [RS] and laparoscopic surgery [LS]) and open surgery (OS) for managing endometrial cancer are lacking. This study aimed to compare surgical and oncologic outcomes between endometrial cancer patients who underwent surgical staging via MIS or OS.
Materials and Methods
A population-based retrospective cohort study was performed using claims data from the Korean National Health Insurance database from January 2012 to December 2016. All patients who underwent hysterectomy under diagnosis of endometrial cancer were identified. Patients were classified into RS, LS, and OS groups. Operative and oncologic outcomes were compared among the three groups after adjustments for age group, risk group (adjuvant therapy status), modified Charlson comorbidity index, income level, insurance type, and index year using propensity scores obtained via the inverse probability of treatment weighted method.
Results
After adjustment, 5,065 patients (RS, n=315; LS, n=3,248; OS, n=1,503) were analyzed. Patient demographics were comparable. Hospital stay, postoperative complications, and cost were more favorable in the RS and LS groups than in the OS group (all p < 0.001). Five-year overall survival was significantly longer in the RS and LS groups than in the OS group (94.8%, 91.9%, and 86.9%, respectively; p < 0.001). Moreover, the survival benefit of RS was shown in the subgroup analysis of low-risk endometrial cancer patients.
Conclusion
Our study provides further evidence for the RS being a safe surgical alternative to the LS and OS, especially in low-risk endometrial cancer patients, offering surgical and oncologic outcomes equivalent to other surgical approaches.

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Thomas Davidson, Rune Sjödahl, Åke Aldman, Claes Lennmarken, Ann-Sofi Kammerlind, Elvar Theodorsson
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Sociodemographic, clinical characteristics, and treatment patterns of endometrial cancer cases in Puerto Rico during the period 2009 to 2015: A retrospective study
Yisel Pagán Santana, Maira Castañeda Ávila, Ruth Ríos Motta, Karen J. Ortiz Ortiz, Asmerom Tesfamariam Sengal
PLOS ONE.2024; 19(5): e0302253. CrossRef
Comparison of Long-Term Outcomes in Early-Stage Endometrial Cancer: Robotic Single-Site vs. Multiport Laparoscopic Surgery
Heeju Kang, Hyewon Chung, Seungmee Lee, Tae-Kyu Jang, So-Jin Shin, Sang-Hoon Kwon, Chi-Heum Cho
Journal of Personalized Medicine.2024; 14(6): 601. CrossRef
Impact of Robotic Assistance on Minimally Invasive Surgery for Type II Endometrial Cancer: A National Cancer Database Analysis
Kelly Lamiman, Michael Silver, Nicole Goncalves, Michael Kim, Ioannis Alagkiozidis
Cancers.2024; 16(14): 2584. CrossRef
Surgical staging in Early Endometrial Cancer without intrauterine manipulator Using the da Vinci SP Robotic System
Eun Bi Jang, Yong-hee Park, Kyeong A. So, Sun Joo Lee, Tae Jin Kim, Seung-Hyuk Shim
International Journal of Gynecological Cancer.2024; : 101615. CrossRef
Clinical Relevance of Uterine Manipulation on Oncologic Outcome in Robot-Assisted versus Open Surgery in the Management of Endometrial Cancer
Kyung Jin Eoh, Yoo-Na Kim, Eun Ji Nam, Sang Wun Kim, Young Tae Kim
Journal of Clinical Medicine.2023; 12(5): 1950. CrossRef
Trend and characteristics of minimally invasive surgery for patients with endometrial cancer in Japan
Hiroshi Yoshida, Hiroko Machida, Koji Matsuo, Yoshito Terai, Takuma Fujii, Masaki Mandai, Kei Kawana, Hiroaki Kobayashi, Mikio Mikami, Satoru Nagase
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Clinical Relevance of Red Blood Cell Distribution Width (RDW) in Endometrial Cancer: A Retrospective Single-Center Experience from Korea
Kyung-Jin Eoh, Tae-Kyung Lee, Eun-Ji Nam, Sang-Wun Kim, Young-Tae Kim
Cancers.2023; 15(15): 3984. CrossRef
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Arnav Goel, Soumya Pamnani, Ashish Anjankar
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Robot-assisted versus conventional laparoscopic surgery for endometrial cancer: long-term comparison of outcomes
Kyung Jin Eoh, Tae-Joong Kim, Jeong-Yeol Park, Hee Seung Kim, Jiheum Paek, Young Tae Kim
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Comparison of Single-Port Laparoscopy with Other Surgical Approaches in Endometrial Cancer Surgical Staging: Propensity-Score-Matched Analysis
Sang Hyun Cho, Jung-Yun Lee, Eun Ji Nam, Sunghoon Kim, Young Tae Kim, Sang Wun Kim
Cancers.2023; 15(22): 5322. CrossRef
Short-Term Outcome of Robotic versus Laparoscopic Hysterectomy for Endometrial Cancer in Women with Diabetes: Analysis of the US Nationwide Inpatient Sample
Huang-Pin Shen, Chih-Jen Tseng
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Xing Zhou, Sitian Wei, Qingchun Shao, Jun Zhang, Rong Zhao, Rui Shi, Wei Zhang, Kejun Dong, Wan Shu, Hongbo Wang
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Louisa Proppe, Ibrahim Alkatout, Ricarda Koch, Sascha Baum, Christos Kotanidis, Achim Rody, Lars C. Hanker, Georgios Gitas
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Peter A. Argenta, Jordan Mattson, Colleen L. Rivard, Elizabeth Luther, Alexandra Schefter, Rachel I. Vogel
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Effects of Quantitative Nursing Combined with Psychological Intervention in Operating Room on Stress Response, Psychological State, and Prognosis of Patients Undergoing Laparoscopic Endometrial Cancer Surgery
Xiaojing Chen, Huiyan Li, Shouyan Wang, Yu Wang, Li Zhang, Dandan Yao, Li Li, Ge Gao, Shakeel Ahmad
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Xueyan Shi, Zhenghao Deng, Shouman Wang, Shuai Zhao, Lan Xiao, Jiang Zou, Tao Li, Sichuang Tan, SipAin Tan, Xianzhong Xiao
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Surgical and Patient Outcomes of Robotic Versus Conventional Laparoscopic Hysterectomy: A Systematic Review
Khadija Alshowaikh, Katarzyna Karpinska-Leydier, Jashvini Amirthalingam , Gokul Paidi, Anuruddhika I Iroshani Jayarathna, Divya Bala Anthony Manisha R Salibindla, Huseyin Ekin Ergin
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Surgical outcomes of robotic-assisted surgery in endometrial cancer:comparison with laparoscopic surgery and laparotomy
Yoshitsugu Chigusa, Sae Yu, Naoki Horikawa, Haruko Okamoto, Masumi Sunada, Ukita Masayo, Koji Yamanoi, Ken Yamaguchi, Akihito Horie, Masaki Mandai
JAPANESE JOURNAL OF GYNECOLOGIC AND OBSTETRIC ENDOSCOPY.2021; 37(2): 10. CrossRef

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Gastrointestinal cancer

Tumor Control and Overall Survival after Stereotactic Body Radiotherapy for Pulmonary Oligometastases from Colorectal Cancer: A Meta-Analysis: Hoon Sik Choi, Bae Kwon Jeong, Ki Mun Kang, Hojin Jeong, Jin Ho Song, In Bong Ha, Oh-Young Kwon; Cancer Res Treat. 2020;52(4):1188-1198. Published online July 21, 2020; DOI: https://doi.org/10.4143/crt.2020.402

Abstract PDF Supplementary Material PubReader ePub

Purpose
In pulmonary oligometastases from colorectal cancer (POM-CRC), the primarily recommended local therapy is metastasectomy. Stereotactic body radiotherapy (SBRT) is another local therapy modality that is considered as an alternative option in patients who cannot undergo surgery. The purpose of this meta-analysis is to demonstrate the effects of SBRT on POM-CRC by integrating the relevant studies.
Materials and Methods
The authors explored MEDLINE, EMBASE, Cochrane Library, Web of Science, and SCOPUS, and selected studies including patients treated with SBRT for POM-CRC and availability of local control (LC) or overall survival (OS) rate. In this meta-analysis, the effect of SBRT was presented in the form of the LC and OS rates for 1, 2, 3, and 5 years after SBRT as pooled estimates, and the frequency of pulmonary toxicity of grade 3 or higher after SBRT (PTG3-SBRT).
Results
Fourteen full texts among the searched 4,984 studies were the objects of this meta-analysis. The overall number of POM-CRC patients was 495 as per the integration of 14 studies. The pooled estimate LC rate at 1, 2, 3, and 5 years after SBRT was 81.0%, 71.5%, 56.0%, and 61.8%, and the OS rate was 86.9%, 70.1%, 57.9%, and 43.0%, respectively. The LC and OS rates gradually declined until 3 years after SBRT in a similar pattern. Among the 14 studies, only two studies reported PTG3-SBRT as 2.2% and 10.8%, respectively.
Conclusion
For POM-CRC, SBRT is an ablative therapy with a benefit on LC and OS rates and less adverse effects on the lung.

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Clinical outcomes and lung toxicities after lung SABR using dynamic conformal arc therapy: a single-institution cohort study
Emmanuel Mesny, Myriam Ayadi, Pauline Dupuis, Guillaume Beldjoudi, Ronan Tanguy, Isabelle Martel-Lafay
Radiation Oncology.2023;[Epub] CrossRef
Knowing When to Use Stereotactic Ablative Radiation Therapy in Oligometastatic Cancer
Davide Franceschini, Maria Ausilia Teriaca, Luca Dominici, Ciro Franzese, Marta Scorsetti
Cancer Management and Research.2021; Volume 13: 7009. CrossRef

8,244 View
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3 Crossref

Laparoscopic Surgery for Colorectal Cancer in Korea: Nationwide Data from 2013 to 2018: Sun Jin Park, Kil Yeon Lee, Suk-Hwan Lee; Cancer Res Treat. 2020;52(3):938-944. Published online April 6, 2020; DOI: https://doi.org/10.4143/crt.2020.043

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