Multivariate analysis of clinical prognostic factors in patients with glioblastoma multiforme treated with a combined modality approach

ABSTRACT Aims: We present retrospective analysis of patients of glioblastoma multiforme (GBM) and discuss clinical characteristics, various treatment protocols, survival outcomes, and prognostic factors influencing survival. Materials and Methods: From January 2002 to June 2009, 439 patients of GBM were registered in our department. The median age of patients was 50 years, 66.1% were males, and 75% underwent complete or near-total excision. We evaluated those 360 patients who received radiotherapy (RT). Radiotherapy schedule was selected depending upon pre-RT Karnofsky Performance Status (KPS). Patients with KPS < 70 (Group I, n = 48) were planned for RT dose of 30-35 Gy in 10-15 fractions, and patients with KPS ≥ 70 (Group II, n = 312) were planned for 60 Gy in 30 fractions. In group I, six patients and in group II, 89 patients received some form of chemotherapy (lomustine or temozolomide). Statistical Analysis Used: Statistical analysis was done using Statistical Package for Social Sciences, version 12.0. Overall survival (OS) was calculated using Kaplan-Meier method, and prognostic factors were determined by log rank test. The Cox proportional hazards model was used for multivariate analysis. Results: The median follow-up was 7.53 months. The median and 2-year survival rates were 6.33 months and 2.24% for group I and 7.97 months and 8.21% for group II patients, respectively ( P = 0.001). In multivariate analysis, site of tumor (central vs. others; P = 0.006), location of tumor (parietal lobe vs. others; P = 0.003), RT dose (<60 Gy vs. 60 Gy; P = 0.0001), and use of some form of chemotherapy ( P = 0.0001) were independent prognostic factors for survival. Conclusions: In patients with GBM, OS and prognosis remains dismal. Whenever possible, we should use concurrent and/or adjuvant chemotherapy to maximize the benefits of post-operative radiotherapy. Patients with poor performance status may be considered for hypofractionated RT schedules, which have similar median survival rates as conventional RT.

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Combined-Modality Therapy for Locally Advanced Esophageal Cancer in Endemic Region of Turkey: A Single-Center Multimodal Experience

10.32592/ircmj.2021.23.3.325 ◽

2021 ◽

Keyword(s):

Esophageal Cancer ◽

Multivariate Analysis ◽

Prognostic Factors ◽

Median Time ◽

Combined Modality Therapy ◽

Locally Advanced ◽

Tnm Stage ◽

Endemic Region ◽

Combined Modality

Background: Esophageal cancer (EC) is known as the most common cancer around the world. The evidence supports that preoperative chemoradiotherapy (CRT) improves resectability and survival in locally advanced EC patients. Objectives: The current study aimed to evaluate the results of treatment in patients suffering from EC in an endemic region. Methods: In this study, a total of 180 EC patients treated with curative radiotherapy (RT) were retrospectively evaluated. Primary tumor location, histopathological characteristics, tumor, nodes, and metastases (TNM) status, gender, age, treatment modalities, and survival period were also assessed. The effects of prognostic factors on the survival rate were evaluated using single variable analysis. Results: The median time of follow-up was reported as 22.9 months (range: 6-115 months). After 1-, 3-, and 5-year follow-up, the rates of survival were calculated at 86.6%, 46.6%, and 32.5%, respectively. The present study was conducted on 77 (42.8%) male and 103 (57.2%) female patients (mean age: 60±12 years). In histopathological assessment, squamous cell carcinoma was the most frequent diagnosis (n=156; -86.6%). The clinical stages were reported as II in 36.6% (n=66), IIIa in 23.4% (n=42), IIIb in 15.5% (n=28), and IIIc in 24.5% (n=44) of the patients. In this study, 54 (25%) patients were treated with definitive RT, 33 patients (18.3%) with postoperative adjuvant CRT or RT, 59 patients (32.8%) with preoperative CRT or RT, and 43 patients (23.9%) with definitive CRT. The Eastern Cooperative Oncology Group (ECOG) performance status was observed to be ECOG 0 in 51 subjects (28.4%), ECOG 1 in 95 subjects (52.8%), and ECOG 2 in 34 subjects (18.8%). Moreover, 96 (53.4%) and 84 (46.6%) patients received conventional and conformal RT, respectively. The median time of overall survival (OS) was reported as 29 months. In univariate analysis, the T stage (P=0.041), N stage (P=0.033), TNM staging (P=0.00), and concomitant CRT (0.001) were prognostic factors affecting median OS time. Concomitant CRT (hazard ratio [HR]: 0.513; 95% CI: 0.337-0.779; P=0.002) and TNM stage (HR: 2.265; 95% CI: 1.409-3.641) were observed statistically significant as independent prognostic factors of mortality in multivariate analysis. Conclusions: Long-term survival using combined-modality therapy was demonstrated in patients with locally advanced EC. Furthermore, based on the results of multivariate analysis, TNM stage and concomitant CRT were considered independent prognostic factors of mortality.

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Glioblastoma: Prognostic Factors and Predictive Response to Radio and Chemotherapy

Current Medicinal Chemistry ◽

10.2174/0929867327666200131095256 ◽

2020 ◽

Vol 27 (17) ◽

pp. 2814-2825

Author(s):

Francesco Fiorica ◽

Maria Colella ◽

Rosaria Taibi ◽

Andrea Bonetti ◽

Jacopo Giuliani ◽

...

Keyword(s):

Prognostic Factors ◽

Glioblastoma Multiforme ◽

Poor Prognosis ◽

Therapeutic Strategy ◽

Biological Factors ◽

Near Future ◽

Predictive Response

: Glioblastoma multiforme (GBM) is characterized by poor prognosis despite an aggressive therapeutic strategy. In recent years, many advances have been achieved in the field of glioblastoma biology. : Here we try to summarize the main clinical and biological factors impacting clinical prognostication and therapy of GBM patients. From that standpoint, hopefully, in the near future, personalized therapies will be available.

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Prognostic Significance of Metabolic Parameters by 18F-FDG PET/CT in Thymic Epithelial Tumors

Cancers ◽

10.3390/cancers13040712 ◽

2021 ◽

Vol 13 (4) ◽

pp. 712

Author(s):

Joohee Lee ◽

Young Seok Cho ◽

Jhingook Kim ◽

Young Mog Shim ◽

Kyung-Han Lee ◽

...

Keyword(s):

Multivariate Analysis ◽

Prognostic Factors ◽

Fdg Pet ◽

Univariate Analysis ◽

Thymic Epithelial Tumors ◽

Epithelial Tumors ◽

Masaoka Stage ◽

Pet Ct ◽

18F Fdg ◽

Fdg Pet Ct

Background: Imaging tumor FDG avidity could complement prognostic implication in thymic epithelial tumors. We thus investigated the prognostic value of volume-based 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography (PET)/CT parameters in thymic epithelial tumors with other clinical prognostic factors. Methods: This is a retrospective study that included 83 patients who were diagnosed with thymic epithelial tumors and underwent pretreatment 18F-FDG PET/CT. PET parameters, including maximum and average standardized uptake values (SUVmax, SUVavg), metabolic tumor volume (MTV), and total lesion glycolysis (TLG), were measured with a threshold of SUV 2.5. Univariate and multivariate analysis of PET parameters and clinicopathologic variables for time-to-progression was performed by using a Cox proportional hazard regression model. Results: There were 21 low-risk thymomas (25.3%), 27 high-risk thymomas (32.5%), and 35 thymic carcinomas (42.2%). Recurrence or disease progression occurred in 24 patients (28.9%). On univariate analysis, Masaoka stage (p < 0.001); histologic types (p = 0.009); treatment modality (p = 0.001); and SUVmax, SUVavg, MTV, and TLG (all p < 0.001) were significant prognostic factors. SUVavg (p < 0.001) and Masaoka stage (p = 0.001) were independent prognostic factors on multivariate analysis. Conclusion: SUVavg and Masaoka stage are independent prognostic factors in thymic epithelial tumors.

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PROGNOSTIC FACTORS OF RENAL TUMOR RECURRENCE AFTER RADICAL NEPHRECTOMY

British Journal of Surgery ◽

10.1093/bjs/znab160.044 ◽

2021 ◽

Vol 108 (Supplement_3) ◽

Author(s):

G Martínez Izquierdo ◽

A R Arnaiz Pérez ◽

E Escolano Fernández ◽

M Merayo Álvarez ◽

B Carrasco Aguilera ◽

...

Keyword(s):

Multivariate Analysis ◽

Prognostic Factors ◽

Radical Nephrectomy ◽

Univariate Analysis ◽

Malignant Neoplasms ◽

Histopathological Analysis ◽

Chi Square ◽

Renal Sinus ◽

Chi Square Test

Abstract INTRODUCTION Renal cell carcinoma (RCC) represents 3% of overall malignant neoplasms in adults. However, its aetiology has not been clearly established. Although surgery represents the cornerstone in treatment, recurrence postoperative rates are around 20-30%, what implies prognostic factors search must be mandatory in order to help to plan de follow-up and the different adjuvant therapy possibilities available in case they were necessary. MATERIAL AND METHODS A retrospective observational study was carried out in 110 patients who underwent radical nephrectomy between 2004 and 2018, with the aim of identifying possible prognostic factors of recurrence of RCC after these surgeries. Preoperative data (epidemiological, comorbidities and laboratory tests), surgical, pathological and variables related to follow-up were taken into account. A univariate and multivariate analysis were performed, using chi-square test and logistic regression, respectively. RESULTS The median follow-up time was 53.5 months (SD = 35.8), time in which 19 patients had a recurrence of RCC after radical nephrectomy (17.2%). Histopathological items such as the surgical piece size, the nodal and microvascular invasion, the renal sinus invasion and the presence of necrosis in the surgical piece were associated with RCC recurrence in the univariate analysis, while only the presence of necrosis in the surgical piece showed a significant result in the multivariate analysis (p = 0.004). CONCLUSIONS Histopathological analysis, highlighting the presence of necrosis in the histological sample, was proved to be the main risk factor of RCC recurrence.

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