Publications by authors named "Zhong Guo Liang"

Objectives: To meet the demand for personalized treatment, effective stratification of patients with metastatic nasopharyngeal carcinoma (mNPC) is essential. Hence, our study aimed to establish an M1 subdivision for prognostic prediction and treatment planning in patients with mNPC.

Materials And Methods: This study included 1239 patients with mNPC from three medical centers divided into the synchronous mNPC cohort (smNPC, n = 556) to establish an M1 stage subdivision and the metachronous mNPC cohort (mmNPC, n = 683) to validate this subdivision.

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Objective: We investigated the efficacy of metastatic lesion radiotherapy (MLRT) in patients with metastatic nasopharyngeal carcinoma (mNPC).

Materials And Methods: Patients with mNPC from three institutions were included in this study. Propensity score matching (PSM) was employed to ensure comparability between patient groups.

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Purpose: To investigate the role of induction chemotherapy (IC) in lymph node-positive (LN-positive) stage III nasopharyngeal carcinoma (NPC) receiving concurrent chemoradiotherapy (CCRT).

Methods: In total, 627 patients with newly diagnosed LN-positive stage III NPC receiving CCRT or IC plus CCRT were included. The primary endpoint was progression-free survival (PFS).

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Purpose: To investigate the efficacy of chemotherapy among intermediate-risk (stage II/T3N0) nasopharyngeal carcinoma (NPC) patients receiving radiotherapy (RT).

Methods: We identified stage II/T3N0 NPC patients who received radiotherapy with or without chemotherapy from the Surveillance, Epidemiology and End Results database (2004-2019). Overall survival (OS) and cancer-specific survival (CSS) were assessed using the Kaplan-Meier method with log-rank test and Cox proportional hazards models to evaluate the efficacy of chemotherapy.

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Induction chemotherapy (IC) plus concurrent chemoradiotherapy (CCRT) and CCRT alone were the optional treatment regimens for T3-4N1M0 nasopharyngeal carcinoma (NPC) patients. Therefore, we established a nomogram to predict clinical prognosis and guide individualized IC in T3-4N1M0 NPC. Overall, 699 T3-4N1M0 NPC patients treated with CCRT with or without IC between January 2010 and December 2018 were examined.

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Background: The optimal number of cycles of induction chemotherapy (IC) in locoregionally advanced nasopharyngeal carcinoma (LANPC) is unclear. We aimed to combine the tumor response during IC and tumor stage to individualize the number of IC cycles.

Methods: Totally, 498 LANPC patients who received IC plus CCRT between 2014 and 2018 were reviewed.

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Article Synopsis
  • The study aimed to identify which advanced N-stage nasopharyngeal carcinoma (NPC) patients would benefit from adding induction chemotherapy (IC) to concurrent chemoradiotherapy (CCRT).
  • A nomogram was developed to predict overall survival based on data from 624 NPC patients, showing good prognostic accuracy and stratifying patients into low and high-risk groups.
  • Results indicated that in high-risk groups, IC+CCRT significantly improved overall survival compared to CCRT alone, but in low-risk groups, there was no significant difference, although IC+CCRT had higher toxicities.
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Purpose: The role of concurrent chemoradiotherapy (CCRT) in stage II nasopharyngeal carcinoma (NPC) is still controversial. Our objective is to evaluate the value of concurrent chemotherapy in stage II NPC receiving radiotherapy (RT).

Methods: We searched the PubMed, Embase, and Scopus databases for studies comparing CCRT versus RT alone in stage II NPC with survival outcomes and toxicities, including locoregional recurrence-free survival (LRFS), metastasis-free survival (DMFS), progression-free survival (PFS), overall survival (OS), and grade 3-4 acute toxicities.

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Background: The prognostic significance of wait time between definite diagnosis and initial radical radiotherapy is not well established in patients with locoregionally advanced nasopharyngeal carcinoma (LA-NPC) receiving both induction chemotherapy (IC) and concurrent chemoradiotherapy (CCRT).

Methods: From 2010 to 2018, 648 patients with LA-NPC treated with IC followed by CCRT were included.

Results: A total of 172 pairs of patients with LA-NPC were selected by propensity score matching (PSM).

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Background: To evaluate the clinical significance of tumor response to induction chemotherapy (IC) in locoregionally advanced nasopharyngeal carcinoma (LANPC) patients and further to develop a nomogram for predicting survival prognosis.

Methods: A total of 498 patients with stage III-IVA NPC applying IC and concurrent chemotherapy were reviewed (training cohort, n = 376; validation cohort, n = 122).

Results: Tumor response was an independent predictor for clinical outcomes.

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There is no conclusive on the optimal number of cycles of induction chemotherapy (IC) with the greatest benefit to patient survival. This study aimed to assess the efficiency and acute toxicities of different cycles of IC for patients with locoregionally advanced nasopharyngeal carcinoma (LA-NPC). We reviewed data from patients with LA-NPC treated with IC plus concurrent chemoradiation (CCRT).

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Purpose: To evaluate the efficacy and safety of induction chemotherapy (IC) combined with concurrent chemoradiotherapy (CCRT) CCRT combined with adjuvant chemotherapy (AC) in patients with stage II-IVA nasopharyngeal carcinoma (NPC), we conducted a retrospective study and a meta-analysis combining the results of our studies.

Patients And Methods: We used the propensity score matching (PSM) to balance variables. A total of 168 patients were chosen by one-to-two PSM, including 101 patients with IC + CCRT and 67 cases with CCRT + AC.

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Background: The optimal cumulative cisplatin dose (CCD) during radiation therapy for locoregionally advanced nasopharyngeal carcinoma (LA-NPC) patients receiving induction chemotherapy (IC) plus CCRT remains controversial. This study aimed to explore the treatment efficiency of CCD for high-and low-risk patients with LA-NPC.

Methods: Data from 472 LA-NPC patients diagnosed from 2014 to 2018 and treated with IC plus CCRT were reviewed.

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Objective: The present study aimed to evaluate the role of integrating the pretreatment neutrophil-to-lymphocyte ratio (NLR) into the eighth edition of the AJCC staging system for nasopharynx cancer in an endemic region.

Methods: Between May 2007 and December 2012, a total of 713 cases with NPC were retrospectively analyzed. The separation ability in terms of overall survival (OS), local failure-free survival (LFFS), distant metastasis-free survival (DMFS), and failure-free survival (FFS) was evaluated.

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Purpose: We aimed to construct of a nomogram to predict progression-free survival (PFS) in locoregionally advanced nasopharyngeal carcinoma (LA-NPC) with risk stratification using computed tomography (CT) radiomics features and clinical factors.

Patients And Methods: A total of 311 patients diagnosed with LA-NPC (stage III-IVa) at our hospital between 2010 and 2014 were included. The region of interest (ROI) of the primary nasopharyngeal mass was manually outlined.

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Purpose: The prognosis of inflammation-related indicators like lactate dehydrogenase/albumin ratio (LAR) and the platelet/lymphocyte ratio (PLR) in nasopharyngeal carcinoma (NPC) is not yet clear. Our objective is to establish and verify the nomogram using LAR and PLR ratio for the first time to explore the prognostic value in NPC.

Patients And Methods: This was a retrospective collection of 1661 patients with non-metastatic NPC admitted to our hospital from 2010 to 2017.

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Objectives: To establish and validate an effective nomogram to predict clinical outcomes for patients with locoregionally advanced nasopharyngeal carcinoma (LA-NPC).

Materials And Methods: The clinicopathological parameters and follow-up information of 402 locoregionally advanced NPC patients (training cohort, n = 302; validation cohort, n = 100) were retrospectively enrolled. The nomogram was built with the important prognostic variables identified by Cox regression analysis.

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Purpose: Improved antitumor responses have been observed in patients after combination radiation therapy (RT) and immune checkpoint blockade (ICB). Whether these clinical responses are linked to the host systemic immune system has not been elucidated.

Methods And Materials: In this single-institution prospective observational study, peripheral blood was longitudinally collected from 10 patients with metastatic disease who had responded to anti-PD-1/anti-PD-L1 ICB and received RT (8-50 Gy in 1-5 fractions) upon disease progression at the following timepoints: baseline (pre-RT), 1 to 2 weeks post-RT, and post-ICB (cycle 1) on reintroduction post-RT.

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To investigate N-staging Assessment of pretreatment Shear wave elastrography (SWE) in small cervical lymph nodes (0. 5 cm ≤ maximum diameter < 1 cm, intact capsule, no central necrosis, sCLNs) in nasopharyngeal carcinoma (NPC) patients. Pathological biopsy proven 28 NPC patients with sCLNs shown in pretreatment magnetic resonance (MR) images and 40 target lymph nodes were enrolled.

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Purpose: To construct a prognostic index (PI) for overall survival (OS) to stratify nasopharyngeal carcinoma (NPC) into high-risk and low-risk groups. We also applied the model to investigate the role of the addition of adjuvant chemotherapy (AC) to concurrent chemoradiotherapy (CCRT) regimens for the treatment of NPC.

Methods: A prognostic model was established based on a retrospective study of 362 patients from January 2008 to June 2011.

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Article Synopsis
  • Xerostomia is a common late side effect of radiation therapy, particularly in patients with Nasopharyngeal Carcinoma (NPC), and this study aimed to develop a nomogram to predict its occurrence.
  • The research involved 195 NPC patients, analyzing various dose-response factors related to the parotid glands to identify which were most predictive of experiencing grade 2-3 xerostomia one year post-treatment.
  • The developed nomogram showed a strong predictive capability with a concordance index of 0.796, outperforming other single measurement methods, indicating its potential to improve treatment outcomes and quality of life for patients.
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Background And Aim: Nasopharyngeal carcinoma (NPC) is one of the most common cancers in Southern China, Southeast Asia. Radiotherapy is the main treatment for NPC. Still, about 20% of patients with NPC have a recurrence.

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Objective: Radiomics pipelines have been developed to extract novel information from radiological images, which may help in phenotypic profiling of tumours that would correlate to prognosis. Here, we compared two publicly available pipelines for radiomics analyses on head and neck CT and MRI in nasopharynx cancer (NPC).

Methods And Materials: 100 biopsy-proven NPC cases stratified by T- and N-categories were enrolled in this study.

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Background: Epidermal growth factor receptor (EGFR) overexpression is characteristic in head and neck cancers and is associated with tumour regrowth following photodynamic therapy (PDT).

Purpose: We investigated vandetanib, which selectively blocks EGFR and vascular endothelial growth factor receptor-2 (VEGFR-2), to enhance the efficacy of PDT.

Methods: We assessed the in vitro therapeutic efficacy of: 1) vandetanib; 2) PDT with the photosensitizer Chlorin e6 (Fotolon®); and 3) combined PDT + vadetanib treatment in CAL-27 oral squamous cell carcinoma (OSCC) cell line by cell viability, γH2AX foci immunostaining, cell cycle arrest and western blot.

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Paranasal sinus and skull base tumors are rare aggressive head and neck cancers, and typically present in the locally advanced stages. As a result, achieving wide surgical resection with clear margins is a challenge for these tumors, and radiotherapy is thus usually indicated as an adjuvant modality following surgery to optimize local control. Given the integral role of radiotherapy in the management of this subgroup of head and neck tumors, the advent of intensity-modulated radiotherapy (IMRT) has led to substantial improvement of clinical outcomes for these patients.

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