1.Effect of group exercise therapy on improving sleep quality in patients with mild to moderate depressive disorder during the acute phase
Ruinan LI ; Jianjun GUO ; Wenyang LIU ; Yu QIAO ; Lu TIAN ; Shengtao JIA ; Jingjing ZHOU
Sichuan Mental Health 2024;37(6):492-496
BackgroundPatients with depressive disorder commonly experience sleep disturbances. Previous studies have indicated that group exercise therapy is beneficial in alleviating depressive symptom among patients with depressive disorder. However, there is a lack of research on the impact of group exercise therapy on improving sleep quality in patients with depressive disorder. ObjectiveTo explore the impact of group exercise therapy on sleep quality in patients with acute mild-to-moderate depression during the acute phase, so as to provide references for clinically improving the sleep quality of patients with mild to moderate depressive disorder during the acute phase. MethodsFrom December 2018 to July 2021, patients with mild-to-moderate depressive disorder during the acute phase (n=40), who met the diagnostic criteria for depressive disorder according to International Classification of Diseases, tenth edition (ICD-10) ,were recruited from the outpatient clinic of Beijing Anding Hospital, Capital Medical University. All participants underwent an 8-week moderate-intensity group exercise therapy program comprising three sessions per week, each lasting 60 minutes. Assessments were conducted at baseline and after 2, 4, 6 and 8 weeks of intervention using Visual Analogue Scale (VAS), Hamilton Depression Scale-17 item (HAMD-17) and Pittsburgh Sleep Quality Index (PSQI). The reduction scores at each time point relative to baseline treated as the dependent variables, time as the independent variable, baseline scores as covariates, with time as a fixed effect and baseline values as random effects. Data were analyzed using a linear mixed-effects model. ResultsThe PSQI scores of patients at baseline, 2, 4 , 6 and 8 weeks after the intervention were (10.62±5.12), (9.07±3.58), (7.39±3.66), (6.54±3.84) and (5.50±3.41), respectively. The results of linear mixed effect model analysis showed that after 2, 4, 6 and 8 weeks of intervention, patients scored lower than baseline, with statistically significant differences observed in all cases (P<0.01). The HAMD-17 sleep fcctor scores at baseline, 2, 4, 6 and 8 weeks were (2.25±1.56), (2.06±1.49), (1.36±1.27), (1.22±1.46) and (0.97±1.34), respectively. The results of linear mixed effects model analysis showed that the HAMD-17 sleep factor scores of 4, 6 and 8 weeks of intervention were lower than that of baseline, and the difference was statistically significant (P<0.05 or 0.01). The VAS scores at baseline, 2, 4, 6 and 8 weeks after the intervention were (3.18±2.17), (4.74±2.22), (6.01±2.31), (6.54±2.16) and (7.90±1.64), respectively. The results of linear mixed effect model analysis showed that VAS scores of 2, 4, 6 and 8 weeks of intervention were higher than baseline,and the difference was statistically significant (P<0.01). ConclusionGroup exercise therapy may improve sleep quality and alleviate depressive symptoms in patients with mild-to-moderate depressive disorder during the acute phase. [Funded by National Key Research and Development Plan Project (number, 2016YFC1307200); Beijing Municipal Hospital Scientific Research and Cultivation Plan Project (number, PX2024070)]
2.Application of optimized hippocampus-avoidance prophylactic cranial irradiation in limited-stage small cell lung cancer
Tianyou ZHAN ; Lei DENG ; Wenqing WANG ; Tao ZHANG ; Nan BI ; Jianyang WANG ; Xin WANG ; Wenyang LIU ; Yirui ZHAI ; Zefen XIAO ; Jima LYU ; Qinfu FENG ; Dongfu CHEN ; Ye-Xiong LI ; Zongmei ZHOU
Chinese Journal of Radiation Oncology 2024;33(3):205-211
Objective:To analyze the treatment efficacy, safety and dose parameters of optimized hippocampus-avoidance prophylactic cranial irradiation (HA-PCI) in limited-stage small cell lung cancer (LS-SCLC) and explore the corresponding dosimetric parameters under the condition of narrowing the hippocampus avoidance region as hippocampus region plus 2 mm in three dimensions.Methods:Clinical data of patients with LS-SCLC receiving HA-PCI (hippocampus avoidance region defined as hippocampus region plus 2 mm in three dimensions) in Cancer Hospital Chinese Academy of Medical Sciences from August 2014 to June 2020 were retrospectively analyzed. Dose parameters of HA-PCI and adverse events were analyzed using descriptive statistics analysis. Changes of neurocognitive function, such as mini-mental state examination (MMSE) and Hopkins verbal learning test-revised (HVLT-R) scores, were evaluated by analysis of variance and Kruskal-Wallis H test. Overall survival (OS), progression-free survival (PFS) and intracranial PFS (iPFS) were calculated using Kaplan-Meier method. The cumulative incidence of local-regional recurrence (LRR), extracranial distant metastases (EDM), and locoregional recurrence (LR) were investigated under competing risk analysis. Results:A total of 112 patients were included, the median follow-up time was 50 months (95% CI: 45.61-54.38). The median volume of hippocampus was 4.85 ml (range: 2.65-8.34 ml), with the average dose ≤9 Gy in 106 patients (94.6%), ≤8 Gy in 92 patients (82.1%). The median volume of hippocampus avoidance area was 15.00 ml (range: 8.61-28.06 ml), with the average dose ≤12 Gy in 109 patients (97.3%), ≤10 Gy in 101 patients (90.2%). The 2-year cumulative LRR, EDM, LR rates were 16.9%, 23.2% and 28.5%, respectively. The 5-year cumulative LRR, EDM, LR rates were 23.2%, 26.9% and 33.3%, respectively. The 2-year iPFS, PFS and OS rates were 66.1% (95% CI: 57.9%-75.4%), 53.6% (95% CI: 45.1%-63.7%) and 80.4% (95% CI: 73.3%-88.1%), respectively. The most common grade I-Ⅱ adverse events were nausea (33.9%) and dizziness (31.3%), and only 1 patient developed grade Ⅲ nausea and dizziness. MMSE ( n=57) and HVLT-R tests ( n=56) showed no significant decline. Conclusions:Optimized HA-PCI can achieve similar dose limitation with favorable efficacy and light toxicity. No significant decline is observed in short-term neurocognitive function in evaluable patients.
3.Role of neoadjuvant rectal score in prognosis and adjuvant chemotherapy decision-making in locally advanced rectal cancer following neoadjuvant short-course radiotherapy and consolidation chemotherapy
Qiang ZENG ; Yuan TANG ; Haitao ZHOU ; Ning LI ; Wenyang LIU ; Silin CHEN ; Shuai LI ; Ningning LU ; Hui FANG ; Shulian WANG ; Yueping LIU ; Yongwen SONG ; Yexiong LI ; Jing JIN
Chinese Journal of Oncology 2024;46(4):335-343
Objectives:To assess the prognostic impact of the neoadjuvant rectal (NAR) score following neoadjuvant short-course radiotherapy and consolidation chemotherapy in locally advanced rectal cancer (LARC), as well as its value in guiding decisions for adjuvant chemotherapy.Methods:Between August 2015 and August 2018, patients were eligible from the STELLAR phase III trial (NCT02533271) who received short-course radiotherapy plus consolidation chemotherapy and for whom the NAR score could be calculated. Based on the NAR score, patients were categorized into low (<8), intermediate (8-16), and high (>16) groups. The Kaplan-Meier method, log rank tests, and multivariate Cox proportional hazard regression models were used to evaluate the impact of the NAR score on disease-free survival (DFS).Results:Out of the 232 patients, 24.1%, 48.7%, and 27.2% had low (56 cases), intermediate (113 cases), and high NAR scores (63 cases), respectively. The median follow-up period was 37 months, with 3-year DFS rates of 87.3%, 68.3%, and 53.4% ( P<0.001) for the low, intermediate, and high NAR score groups. Multivariate analysis demonstrated that the NAR score (intermediate NAR score: HR, 3.10, 95% CI, 1.30-7.37, P=0.011; high NAR scores: HR=5.44, 95% CI, 2.26-13.09, P<0.001), resection status ( HR, 3.00, 95% CI, 1.64-5.52, P<0.001), and adjuvant chemotherapy ( HR, 3.25, 95% CI, 2.01-5.27, P<0.001) were independent prognostic factors for DFS. In patients with R0 resection, the 3-year DFS rates were 97.8% and 78.0% for those with low and intermediate NAR scores who received adjuvant chemotherapy, significantly higher than the 43.2% and 50.6% for those who did not ( P<0.001, P=0.002). There was no significant difference in the 3-year DFS rate (54.2% vs 53.3%, P=0.214) among high NAR score patients, regardless of adjuvant chemotherapy. Conclusions:The NAR score is a robust prognostic indicator in LARC following neoadjuvant short-course radiotherapy and consolidation chemotherapy, with potential implications for subsequent decisions regarding adjuvant chemotherapy. These findings warrant further validation in studies with larger sample sizes.
4.Role of neoadjuvant rectal score in prognosis and adjuvant chemotherapy decision-making in locally advanced rectal cancer following neoadjuvant short-course radiotherapy and consolidation chemotherapy
Qiang ZENG ; Yuan TANG ; Haitao ZHOU ; Ning LI ; Wenyang LIU ; Silin CHEN ; Shuai LI ; Ningning LU ; Hui FANG ; Shulian WANG ; Yueping LIU ; Yongwen SONG ; Yexiong LI ; Jing JIN
Chinese Journal of Oncology 2024;46(4):335-343
Objectives:To assess the prognostic impact of the neoadjuvant rectal (NAR) score following neoadjuvant short-course radiotherapy and consolidation chemotherapy in locally advanced rectal cancer (LARC), as well as its value in guiding decisions for adjuvant chemotherapy.Methods:Between August 2015 and August 2018, patients were eligible from the STELLAR phase III trial (NCT02533271) who received short-course radiotherapy plus consolidation chemotherapy and for whom the NAR score could be calculated. Based on the NAR score, patients were categorized into low (<8), intermediate (8-16), and high (>16) groups. The Kaplan-Meier method, log rank tests, and multivariate Cox proportional hazard regression models were used to evaluate the impact of the NAR score on disease-free survival (DFS).Results:Out of the 232 patients, 24.1%, 48.7%, and 27.2% had low (56 cases), intermediate (113 cases), and high NAR scores (63 cases), respectively. The median follow-up period was 37 months, with 3-year DFS rates of 87.3%, 68.3%, and 53.4% ( P<0.001) for the low, intermediate, and high NAR score groups. Multivariate analysis demonstrated that the NAR score (intermediate NAR score: HR, 3.10, 95% CI, 1.30-7.37, P=0.011; high NAR scores: HR=5.44, 95% CI, 2.26-13.09, P<0.001), resection status ( HR, 3.00, 95% CI, 1.64-5.52, P<0.001), and adjuvant chemotherapy ( HR, 3.25, 95% CI, 2.01-5.27, P<0.001) were independent prognostic factors for DFS. In patients with R0 resection, the 3-year DFS rates were 97.8% and 78.0% for those with low and intermediate NAR scores who received adjuvant chemotherapy, significantly higher than the 43.2% and 50.6% for those who did not ( P<0.001, P=0.002). There was no significant difference in the 3-year DFS rate (54.2% vs 53.3%, P=0.214) among high NAR score patients, regardless of adjuvant chemotherapy. Conclusions:The NAR score is a robust prognostic indicator in LARC following neoadjuvant short-course radiotherapy and consolidation chemotherapy, with potential implications for subsequent decisions regarding adjuvant chemotherapy. These findings warrant further validation in studies with larger sample sizes.
5.Efficacy and toxicity analysis of thoracic radiotherapy for extensive-stage small cell lung cancer patients after first-line chemoimmunotherapy
Chaonan ZHANG ; Wenqing WANG ; Zongmei ZHOU ; Lei DENG ; Nan BI ; Tao ZHANG ; Jianyang WANG ; Xin WANG ; Wenyang LIU ; Zefen XIAO ; Jima LYU ; Yirui ZHAI ; Qinfu FENG
Chinese Journal of Radiation Oncology 2024;33(8):703-710
Objective:To evaluate the safety and efficacy of thoracic radiotherapy (TRT) for extensive-stage small cell lung cancer (ES-SCLC) patients in the era of first-line chemoimmunotherapy.Methods:Medical records of 56 patients with ES-SCLC who received thoracic radiotherapy after first-line platinum-based chemotherapy plus immunotherapy in Cancer Hospital Chinese Academy of Medical Sciences from January 2018 to December 2021 were retrospectively analyzed. The control group was not established for clinical causes. The overall survival (OS), progression-free survival (PFS) and local recurrence-free survival (LRFS) were calculated using the Kaplan-Meier method. Univariate and multivariate analyses were employed to identify prognostic factors using the Cox proportional hazards model. The cumulative incidence of local regional recurrence (LRR) was estimated using the Fine-Grey competing risks regression model.Results:Among 56 patients in our cohort, 47 patients received consolidative TRT (cTRT) before progression and 9 patients received salvage TRT after progression. The median follow-up time was 21 months (95% CI=19.8-22.2 months), the median OS was not reached, the median PFS was 9 months (95% CI=7.0-13.0 months), and the 1-year and 18-month OS rates were 84.9%, 62.1%. In the cTRT group, the 1-year and 18-month OS rates were 84.1%, 64.5%, with the median PFS of 10 months; 1-year and 18-month LRFS rates were 73.6% and 66.0%, respectively; the cumulative incidence of LRR at 1-year and 2-year were 24.9% and 30.8%, respectively. No other 4-5 grade adverse events (AE) were reported except 6 patients presenting with 4 grade hematologic toxicities. Three grade radiation esophagitis occurred in 3 patients (5%). Ten patients (18%) developed 1-2 grade treatment-related pneumonitis, including 5 (9%) patients with immune related pneumonitis and 5 (9%) patients with radiation pneumonitis. Conclusion:The application of TRT after first-line chemoimmunotherapy is safe and may has potential survival benefit for patients with ES-SCLC.
6.Phase II trial of hippocampal avoidance whole-brain irradiation with simultaneous integrated boost for treatment of brain metastases of lung cancer
Zhuoran LI ; Wenqing WANG ; Lei DENG ; Yirui ZHAI ; Tao ZHANG ; Nan BI ; Jingbo WANG ; Jianyang WANG ; Xin WANG ; Wenyang LIU ; Zefen XIAO ; Dongfu CHEN ; Jima LYU ; Qinfu FENG ; Zongmei ZHOU
Chinese Journal of Radiation Oncology 2023;32(5):400-406
Objective:To evaluate the efficacy and safety of hippocampal avoidance whole-brain irradiation with simultaneous integrated boost in the treatment of brain metastases of lung cancer.Methods:Forty lung cancer patients with brain metastases who received whole-brain radiotherapy with simultaneous integrated boost and hippocampal avoidance in Cancer Hospital, Chinese Academy of Medical Sciences from 2014 to 2020 were enrolled in this study. Brain MRI, survival follow-up and evaluation of side effects were performed before radiotherapy and at 1, 3, 6 and 12 months after radiotherapy, respectively. Overall survival (OS), progression-free survival (PFS) and changes in cognitive function were analyzed. Continuous data were described as Mean ± SD. Categorical data were described by frequency and composition ratio or percentage. Survival analysis was conducted by Kaplan-Meier method. Influencing factors of survival were identified by univariate and multivariate Cox's regression analyses.Results:A total of 40 patients were enrolled in the study. The median follow-up time was 14.2 months and the median OS, PFS and intracranial PFS of all patients were 14.8 months, 6.7 months and 14.8 months, respectively. Multivariate analysis showed that male gender and newly diagnosed stage Ⅳ disease were associated with worse OS and PFS, respectively. The Hopkins verbal learning test-revised (HVLT-R) scores at baseline and 1, 3 and 6 months after radiotherapy were 21.94±2.99, 20.88±3.12, 20.03±3.14, and 19.78±2.98, respectively. The HVLT-R score at 6 months after radiotherapy was decreased by approximately 9.8% compared with the baseline. No grade 3 or above toxic and side effect occurred in the entire cohort.Conclusion:Hippocampal avoidance whole-brain irradiation with simultaneous integrated boost is a safe and effective treatment for brain metastases of lung cancer, which is expected to reduce the impact of radiotherapy on cognitive function.
7.State-of-the-art and outlook of drug-eluting stents
Wenyang HE ; Yanyi ZHOU ; Yaoming ZHANG ; Hao GU ; Ruisheng QU ; Chaoqiang CUI ; Dong ZHOU
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2022;29(07):930-934
Implantation of drug-eluting stents (DES) is one of the most effective treatment for intraluminal vascular diseases such as vascular stenosis caused by atherosclerosis. Antiproliferative drugs offered by could significantly reduce the restenosis of blood vessels, which is beneficial to interventional therapy in more advanced and complex vascular diseases. This review sumarizes the state-of-the-art of the DES based on the function of loaded drug and material of the stents. We hope this review can provide basic information of DES for clinicians and researchers to make more rational choices in practical applications. Moreover, this review also propses the prospects of drug-loaded stents.
8.Prognostic value of pretreatment body mass index in patients with unresectable locally advanced non-small cell lung cancer after chemoradiotherapy
Xinling FAN ; Yin YANG ; Yu WANG ; Jianyang WANG ; Lei DENG ; Xin WANG ; Wenyang LIU ; Wenqing WANG ; Dongfu CHEN ; Zefen XIAO ; Qinfu FENG ; Jima LYU ; Zongmei ZHOU ; Nan BI ; Tao ZHANG
Cancer Research and Clinic 2022;34(7):487-492
Objective:To explore the effect of pretreatment body mass index (BMI) on the prognosis of patients with unresectable locally advanced non-small cell lung cancer (NSCLC) after chemoradiotherapy.Methods:The clinical data of 711 patients with locally advanced NSCLC treated with radiotherapy, sequential chemoradiotherapy or concurrent chemoradiotherapy from January 2013 to December 2017 in Cancer Hospital of Chinese Academy of Medical Science and Peking Union Medical College were retrospectively analyzed. Radiotherapy was performed with intensity-modulated radiotherapy (IMRT) or volumetric-modulated arc therapy (VMAT), and the chemotherapy regimens were paclitaxel+carboplatin, pemetrexed+cisplatin or etoposide+cisplatin. The effects of pretreatment BMI and other clinical factors on overall survival (OS) of patients were analyzed. Survival analysis was performed by using Kaplan-Meier method; univariate and multivariate analyses were performed by using Cox proportional hazards model.Results:According to the World Health Organization (WHO) recommended BMI grouping method for Asian, the median OS time of low BMI group (<18.5 kg/m 2, 23 cases), normal BMI group (18.5-23.9 kg/m 2, 293 cases) and high BMI group (≥24.0 kg/m 2, 395 cases) was 17 months (95% CI 11-29 months), 29 months (95% CI 22-36 months) and 30 months (95% CI 27-34 months), respectively. OS in the low BMI group was poorer than that in the normal BMI group and high BMI group ( χ2 = 11.20, P = 0.004). Maximally selected rank statistics was used to determine the optimal cut-off value of BMI for prediction of survival as 21.31 kg/m 2, according to which patients were divided into low BMI group (BMI<21.31 kg/m 2, 130 cases) and high BMI group (BMI≥21.31 kg/m 2, 581 cases), the median OS time of the two groups was 20 months (95% CI 17-27 months) and 32 months (95% CI 28-35 months), respectively. OS in the low BMI group was poorer than that in the high BMI group ( χ2 = 12.30, P < 0.001). Multivariate analysis showed that age ≥ 65 years old, male, Karnofsky score < 80 points, low BMI, smoking, histological type of squamous cell carcinoma and radiotherapy alone were independent risk factors for OS (all P < 0.05). Conclusions:For patients with unresectable locally advanced NSCLC who received chemoradiotherapy, those with low pretreatment BMI have poor prognosis.
9.Safety of thoracic radiotherapy followed by PD-1/PD-L1 inhibitor after induction therapy for extensive-stage small cell lung cancer
Wenyang LIU ; Ziming HAN ; Jianyang WANG ; Tao ZHANG ; Dongfu CHEN ; Qinfu FENG ; Zefen XIAO ; Jima LYU ; Xin WANG ; Lei DENG ; Wenqing WANG ; Yirui ZHAI ; Zhijie WANG ; Jie WANG ; Nan BI ; Zongmei ZHOU
Chinese Journal of Radiation Oncology 2022;31(3):236-241
Objective:To evaluate the safety and tolerance of sequential thoracic radiotherapy combined with PD-1/PD-L1 inhibitors in patients with extensive-stage small cell lung cancer (ES-SCLC) after induction systemic therapy.Methods:ES-SCLC patients from a phase I trial and a real-world study were enrolled for those who received thoracic radiotherapy after induction systemic treatment (chemotherapy/chemotherapy combined with PD-1/PD-L1 inhibitors) and consolidated with PD-1/PD-L1 inhibitors. These two studies were both approved by the Ethics Committee of Chinese Academy of Medical Sciences Cancer Hospital (Clinical Trials.gov number, NCT03971214, NCT04947774).Results:Between January 2019 and March 2021, a total of 11 patients with ES-SCLC were analyzed, aged 52-73 years, with a median age of 62 years. Among them, five patients (45.5%) received induction chemotherapy and six patients (54.5%) received chemotherapy combined with PD-1/PD-L1 inhibitor, and then all received intensity-modulated thoracic radiotherapy after evaluation of systemic treatment efficacy. Two patients developed treatment-related grade G3-5 toxicity (18.2%, 1 treatment-related pneumonitis and 1 radiation esophagitis). G 1-G 2 hematologic toxicity, pneumonia, and anorexia were common mild toxicities. Only one patient (9.1%) terminated immunotherapy due to immune-related pneumonitis. During a median follow-up time of 12.5 months (range: 3.5-16.4 months), the median disease progression-free survival and overall survival was 7.4 months (95% CI: 6.9-8.0 months) and 14.6 months (95% CI: 9.0-20.2 months), respectively. Conclusions:Sequential thoracic radiotherapy followed by PD-1/PD-L1 inhibitor is safe and feasible in patients with ES-SCLC after induction therapy. Given that both thoracic radiotherapy and immunotherapy benefits the ES-SCLC in survival, this comprehensive treatment modality warrants further investigation.
10.Simultaneous integrated boost vs. routine IMRT in limited-stage small-cell lung cancer: an open-label, non-inferiority, randomized, phase 3 trial
Tianyou ZHAN ; Tao ZHANG ; Zongmei ZHOU ; Wenbin YAN ; Yirui ZHAI ; Lei DENG ; Wenqing WANG ; Nan BI ; Jianyang WANG ; Xin WANG ; Wenyang LIU ; Zefen XIAO ; Qinfu FENG ; Dongfu CHEN ; Jima LYU ; Zhouguang HUI ; Jun LIANG ; Lyuhua WANG
Chinese Journal of Radiation Oncology 2022;31(5):425-430
Objective:Simultaneous integrated boost radiation technique in limited-stage small cell lung cancer is lack of evidence. This prospective study aims to evaluate whether the simultaneous integrated boost is as efficacious and safe as conventional fractionated radiotherapy.Methods:Patients diagnosed with treatment-naive and confirmed limited-stage SCLC were eligible. Participants were randomly assigned (1: 1) to receive simultaneous integrated boost radiotherapy (PGTV 60.2 Gy/2.15 Gy/28F, PTV 50.4 Gy/1.8 Gy/28F) or conventional fractionated radiotherapy (PTV 60 Gy/2 Gy/30F). The primary endpoint was 2-year progression-free survival, and the secondary endpoints were 2-year overall survival, 2-year local-regional recurrence-free survival and toxicity.Results:Between February 2017 and July 2019, 231 patients were enrolled. We analyzed 216 patients whose follow-up time was more than 2 years or who had died, among whom 106 patients in the conventional fractionated radiotherapy group and 110 patients in the simultaneous integrated boost radiotherapy group. The median follow-up time was 37 months (95% CI: 35.2-38.7). The 2-year progression-free survival rates were 45.2% vs. 38.2%( HR=1.22, 95% CI: 0.87-1.72, P=0.2). The 2-year overall survival rates were 73.5% vs. 60.9%( HR=1.35, 95% CI: 0.90-2.04, P=0.14). The 2-year local-regional recurrence-free survival rates were 68.7% vs. 69.9%( HR=0.98, 95% CI: 0.62-1.56, P=1.0). Multivariate analysis showed that early radiotherapy yielded better 2-year progression-free survival, overall survival and local-regional recurrence-free survival than delayed radiotherapy in two groups ( HR=1.69, 95% CI: 1.18-2.41, P=0.003; HR=1.72, 95% CI: 1.09-2.70, P=0.018; HR=1.66, 95% CI: 1.01-2.73, P=0.046). Tumor staging was an influencing factor of overall survival (stage Ⅲ vs. stage Ⅰ-Ⅱ, HR=3.64, 95% CI: 1.15-11.57, P=0.028). The most common grade 3-4 adverse events were myelosuppression (21.7% vs. 15.4%, P=0.83), radiation pneumonitis (4.7% vs. 2.7%, P=0.44) and radiation esophagitis (3.8% vs. 1.8%, P=0.51). Conclusions:Simultaneous integrated boost radiotherapy yields equivalent efficacy and toxicities to conventional fractionated radiotherapy for limited-stage small cell lung cancer. Early radiotherapy can enhance clinical prognosis.

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