Search results for "gea"
showing 10 items of 1040 documents
Clinical-pathological and sociodemographic factors associated with the distant metastasis and overall survival of oral cavity and oropharynx squamous…
2020
Background The objective of this study was to evaluate the influence of clinical-pathological and sociodemographic factors on the prevalence of distant metastasis (DM) and overall survival in patients with oral cavity and oropharynx squamous cell carcinoma (OOSCC). Material and Methods Cross-sectional study based on the records of 404 OOSCC patients evaluated for DM, covering the period 2000-2014. We analysed the influence of age, sex, level of schooling, primary tumor subsite, treatment, marital status, family history of cancer, history of smoking and alcohol consumption, type of health care coverage (private vs. public) and overall survival. Findings were submitted to Fisher’s exact test,…
Histomorphological tumor regression grading of esophageal carcinoma after neoadjuvant radiochemotherapy: which score to use?
2006
Histopathological tumor regression grade (TRG) has been shown to be a prognostic factor in patients with esophageal cancer after neoadjuvant radiochemotherapy (RCT). The system introduced by Mandard to group TRG (Cancer 1994;73:2680-2686) has been used to analyse and discuss its prognostic significance on survival in a single institution retrospective analysis: TRG 1 (complete regression) - TRG 5 (absence of regressive changes). Sixty patients with locally advanced (T3/4 or N1) adenocarcinoma or squamous cell carcinoma received cisplatin-based RCT. Three to four weeks later operation for curative intent was performed. Median follow-up was 17.7 months. Histopathological tumor stages were sta…
Olfaction in chemotherapy for head and neck malignancies
2015
Abstract Objective Systemic chemotherapy for different malignancies occurs alongside various side effects, including reduced sensory function. To date, little is known about the effect of chemotherapeutic agents on olfaction. The aim of this study was to provide new data about changes in sense of smell during chemotherapy among patients with advanced squamous cell carcinomas of the head and neck region. Methods In a prospective, controlled cohort study of patients undergoing up to three courses of chemotherapy (cis- or carboplatin, 5-fluorouracil and docetaxel), olfaction was evaluated prior to and directly following completing a cycle, as well as 3 weeks later with the beginning of the nex…
Quality of Life after Surgical Treatment for Esophageal Atresia: Long-Term Outcome of 154 Patients.
2017
Background The short- and long-term surgical results in patients with esophageal atresia (EA) with or without tracheoesophageal fistula (TEF) have been described in depth from a physician's perspective. Contrarily, the perception and coping strategies of affected patients and their parents have rarely been reported. The aim of this study was to generate data on this matter. Patients and Methods A total of 154 patients who had operative reconstruction for EA between 1971 and 2012 were evaluated for demographic data, surgical technique, affection of daily life, and coping strategies. Results Gastroesophageal reflux (GER) symptoms were reported in 59% of cases with 33% requiring fundoplicatio…
Gene expression profiles of metabolic aggressiveness and tumor recurrence in benign meningioma.
2013
Around 20% of meningiomas histologically benign may be clinically aggressive and recur. This strongly affects management of meningioma patients. There is a need to evaluate the potential aggressiveness of an individual meningioma. Additional criteria for better classification of meningiomas will improve clinical decisions as well as patient follow up strategy after surgery. The aim of this study was to determine the relationship between gene expression profiles and new metabolic subgroups of benign meningioma with potential clinical relevance. Forty benign and fourteen atypical meningioma tissue samples were included in the study. We obtained metabolic profiles by NMR and recurrence after s…
Distribution and density of CD1a+ and CD83+ dendritic cells in HPV-associated laryngeal papillomas.
2009
Summary Background Respiratory papillomatosis associated with human papilloma virus (HPV) infection is the most common benign laryngeal neoplasm. The age of patients at disease onset, HPV type, number of surgeries are well known prognostic factors of the disease course. The correlation between dendritic cell (DC) density in tumor tissue and clinical prognosis was established. Aim The aim of our study was to estimate the density of DC in laryngeal papillomas associated with HPV types 6/11 infection and to evaluate the relationship between the number of DC and the disease severity. Materials and methods Our study included 40 randomly selected biopsy specimens from patients with HPV-positive l…
In vivo histology of Barrett's esophagus and associated neoplasia by confocal laser endomicroscopy.
2006
Background & Aims: Confocal laser endomicroscopy allows subsurface analysis of the intestinal mucosa and in vivo histology during ongoing endoscopy. Here, we have applied this technique to the in vivo diagnosis of Barrett's epithelium and associated neoplasia. Methods: Fluorescein-aided endomicroscopy was performed by applying the endomicroscope over the whole columnar-lined lower esophagus. Images obtained within 1 cm of the columnar-lined lower esophagus were stored digitally and a targeted biopsy examination or endoscopic mucosal resection of the examined areas was performed. In vivo histology was compared with the histologic specimens. All digitally stored images were re-assessed by a b…
Low-level 809 nm GaAlAs laser irradiation increases the proliferation rate of human laryngeal carcinoma cells in vitro
2002
The aim of the study was to investigate the effect of low-level 809 nm laser irradiation on the proliferation rate of human larynx carcinoma cells in vitro. Epithelial tumor cells were obtained from a laryngeal carcinoma and cultured under standard conditions. For laser treatment the cells were spread on 96-well tissue culture plates. Sixty-six cell cultures were irradiated with an 809 nm GaAlAs laser. Another 66 served as controls. Power output was 10 mW(cw) and the time of exposure 75–300 s per well, corresponding to an energy fluence of 1.96–7.84 J/cm2. Subsequent to laser treatment, the cultures were incubated for 72 h. The proliferation rate was determined by means of fluorescence acti…
Analysis of tissue and circulating microRNA expression during metaplastic transformation of the esophagus
2016
Genetic changes involved in the metaplastic progression from squamous esophageal mucosa toward Barrett's metaplasia and adenocarcinoma are almost unknown. Several evidences suggest that some miRNAs are differentially expressed in Barrett's esophagus (BE) and esophageal adenocarcinoma. Among these, miR-143, miR-145, miR-194, miR-203, miR-205, miR-215 appear to have a key role in metaplasia and neoplastic progression. The aim of this study was to analyze deregulated miRNAs in serum and esophageal mucosal tissue biopsies to identify new biomarkers that could be associated with different stages of esophageal disease. Esophageal mucosal tissue biopsies and blood samples were collected and analyz…
HPV infection and oral carcinogenesis
2010
To the Editor,High risk human papilloma viruses (HPV) have been found in head and neck squamous cell carcinomas (HNSCC), particularly in oropharyngeal carcinomas (1). Nevertheless, there are some controversial aspects regarding this issue (2) such as whether the HPV infec-tion is a temporary or a persistent oral infection in these patients.Recently, Chuang et al. (3) have associated the presence of HPV-16 DNA in surveillance salivary rinses with a significant risk for recurrence in HNSCC.We hypothesized that the improved prognosis of many patients with HPV-related oropharyngeal carcinoma is due to the temporary nature of the infection, and there-fore in the absence of lesions no HPV genomic…