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1.
Clinics (Sao Paulo) ; 79: 100484, 2024 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-39284277

RESUMO

INTRODUCTION: Subtotal Parathyroidectomy (S-PTx) and total Parathyroidectomy with immediate Autograft (PTx-AG) are well-established techniques for the treatment of refractory Secondary Hyperparathyroidism (SHPT), with comparable improvements in patients' quality of life and survival. However, the long-term costs after these operations may impact the choice of surgical technique. The objective of the study is to analyze the impact of surgical treatment on medication costs and whether there is any difference between medication use after each procedure, considering impacts on the health system. MATERIAL AND METHODS: Prospective and randomized study in patients with severe SHPT undergoing S-PTx and PTx-AG. Analysis of prescribed medication costs in the month before the postoperative period at 1-, 3-, 6-, 12-, and 18 months. Costs were estimated according to government payment system values. The medications of 65 patients after PTx-AG were compared with those of 24 patients after S-PTx. A comparison of the total costs of the period between 38 men and 51 women was also made. RESULTS: There were 89 evaluable cases. Surgery reduced medication costs after 12 months. The median of total drug costs in the analyzed period was R$ 8,375.00 per patient. There was no difference in costs per patient in the S-PTx group compared to the PTx-AG group. The median total costs were R$ 11,063.0 for men and R$ 7,651.0 for women (p = 0.0078). CONCLUSIONS: The type of parathyroidectomy did not impact costs after surgery. In the first year after surgery, the use of calcium and calcitriol was more significant than the use of other medications. In the following months, the use of sevelamer is responsible for the highest costs. Men have higher costs in outpatient follow-up after surgery.

2.
Oral Dis ; 2024 Aug 18.
Artigo em Inglês | MEDLINE | ID: mdl-39155483

RESUMO

OBJECTIVE: This systematic review and meta-analysis aimed to compare the risk of recurrence and cancer progression after surgical treatment for oral potentially malignant disorders (OPMD) and precancerous lesions in different anatomical sites. MATERIALS AND METHODS: A comprehensive search was conducted in nine databases and grey literature. We included randomized controlled trials assessing surgical treatment efficacy for OPMD and precancerous lesions of cervical, vaginal, anal, and penile sites. Excision or ablation surgical treatments were considered. RESULTS: Overall, 12 studies met the eligibility criteria for oral leukoplakia (OL), proliferative verrucous leukoplakia, cervical intraepithelial neoplasia (CIN), vaginal intraepithelial neoplasia, and anal intraepithelial neoplasia (AIN). In qualitative analysis of surgical protocols, the lack of margin description impacts the clinical outcomes of OL and AIN, and the ablative protocols were heterogeneous in both OPMD and precancerous lesions. No significant difference in OL (risk ratio 0.82 [95% CI: 0.59-1.15]) and CIN (risk ratio 0.31 [95% CI: 0.09-1.09]) for recurrence was observed when cold-knife was compared with ablative protocols. OL exhibited higher recurrence and cancer progression rates compared to CIN and AIN. CONCLUSION: There is no difference in recurrence risk post-surgical treatment for OL and CIN. Surgical protocols for oral leukoplakia and CIN/AIN lack standardized approaches.

3.
Support Care Cancer ; 32(9): 607, 2024 Aug 22.
Artigo em Inglês | MEDLINE | ID: mdl-39172259

RESUMO

PURPOSE: Oral alterations are frequently observed in patients undergoing palliative care and are linked to the direct or indirect effects of the primary medical condition, comorbidities and medical management, leading to oral pain, impacting oral intake, and affecting quality of life. This systematic review aims to assess the prevalence of oral disease in palliative care patients. METHODS: The protocol was registered at the PROSPERO database, and a systematic review of the literature was performed based on the PRISMA statement. A thorough evaluation of studies from five databases and gray literature was conducted. The risk of bias in each study was assessed using the Joanna Briggs Institute checklist for cross-sectional and case-control studies. A quantitative analysis was conducted on five studies using meta-analysis, and the degree of certainty in the evidence was determined using the GRADE tool. RESULTS: The sample consisted of 2,502 patients, with a slight male predominance (50.43%). The average age was 66.92 years. The prevalence of oral diseases among palliative care patients was as follows: caries 32% (95% CI, 0.11-0.56; I2 = 93%), and oral candidiasis 17% (95% CI,0.11-0.25; I2 = 74%). Gingivitis and stomatitis were also reported, but with less frequency. CONCLUSION: Dental intervention should take place as early as possible, ideally from the time of the patient's initial admission to palliative care, with regular monitoring of oral health. This approach can enhance the patient's comfort and quality of life and help prevent more severe complications in the future.


Assuntos
Doenças da Boca , Cuidados Paliativos , Humanos , Cuidados Paliativos/métodos , Prevalência , Doenças da Boca/epidemiologia , Doenças da Boca/etiologia , Qualidade de Vida , Masculino , Feminino , Idoso
4.
J Oral Pathol Med ; 53(7): 444-450, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38831737

RESUMO

BACKGROUND: Neural tumors are difficult to distinguish based solely on cellularity and often require immunohistochemical staining to aid in identifying the cell lineage. This article investigates the potential of a Convolutional Neural Network for the histopathological classification of the three most prevalent benign neural tumor types: neurofibroma, perineurioma, and schwannoma. METHODS: A model was developed, trained, and evaluated for classification using the ResNet-50 architecture, with a database of 30 whole-slide images stained in hematoxylin and eosin (106, 782 patches were generated from and divided among the training, validation, and testing subsets, with strategies to avoid data leakage). RESULTS: The model achieved an accuracy of 70% (64% normalized), and showed satisfactory results for differentiating two of the three classes, reaching approximately 97% and 77% as true positives for neurofibroma and schwannoma classes, respectively, and only 7% for perineurioma class. The AUROC curves for neurofibroma and schwannoma classes was 0.83%, and 0.74% for perineurioma. However, the specificity rate for the perineurioma class was greater (83%) than in the other two classes (neurofibroma with 61%, and schwannoma with 60%). CONCLUSION: This investigation demonstrated significant potential for proficient performance with a limitation regarding the perineurioma class (the limited feature variability observed contributed to a lower performance).


Assuntos
Estudos de Viabilidade , Neoplasias Bucais , Neoplasias de Bainha Neural , Redes Neurais de Computação , Neurilemoma , Neurofibroma , Humanos , Neurofibroma/patologia , Neurilemoma/patologia , Neoplasias de Bainha Neural/patologia , Neoplasias Bucais/patologia , Diagnóstico Diferencial
5.
J Oral Pathol Med ; 53(7): 415-433, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38807455

RESUMO

BACKGROUND: The purpose of this systematic review (SR) is to gather evidence on the use of machine learning (ML) models in the diagnosis of intraosseous lesions in gnathic bones and to analyze the reliability, impact, and usefulness of such models. This SR was performed in accordance with the PRISMA 2022 guidelines and was registered in the PROSPERO database (CRD42022379298). METHODS: The acronym PICOS was used to structure the inquiry-focused review question "Is Artificial Intelligence reliable for the diagnosis of intraosseous lesions in gnathic bones?" The literature search was conducted in various electronic databases, including PubMed, Embase, Scopus, Cochrane Library, Web of Science, Lilacs, IEEE Xplore, and Gray Literature (Google Scholar and ProQuest). Risk of bias assessment was performed using PROBAST, and the results were synthesized by considering the task and sampling strategy of the dataset. RESULTS: Twenty-six studies were included (21 146 radiographic images). Ameloblastomas, odontogenic keratocysts, dentigerous cysts, and periapical cysts were the most frequently investigated lesions. According to TRIPOD, most studies were classified as type 2 (randomly divided). The F1 score was presented in only 13 studies, which provided the metrics for 20 trials, with a mean of 0.71 (±0.25). CONCLUSION: There is no conclusive evidence to support the usefulness of ML-based models in the detection, segmentation, and classification of intraosseous lesions in gnathic bones for routine clinical application. The lack of detail about data sampling, the lack of a comprehensive set of metrics for training and validation, and the absence of external testing limit experiments and hinder proper evaluation of model performance.


Assuntos
Inteligência Artificial , Radiômica , Humanos , Ameloblastoma/diagnóstico por imagem , Ameloblastoma/patologia , Cisto Dentígero/diagnóstico por imagem , Doenças Maxilomandibulares/diagnóstico por imagem , Aprendizado de Máquina , Cistos Odontogênicos/diagnóstico por imagem , Cistos Odontogênicos/patologia , Reprodutibilidade dos Testes
6.
Gland Surg ; 13(4): 490-499, 2024 Apr 29.
Artigo em Inglês | MEDLINE | ID: mdl-38720671

RESUMO

Background: Neck dissection performed via retroauricular approach emerged as an alternative to the conventional approach, aiming to maintain therapeutic efficacy with lower postoperative morbidity. Differences among these modalities in terms of functional aspects and quality of life (QOL) remains unclear. This study aims to evaluate the anatomical and functional aspects and the QOL in patients undergoing unilateral neck dissection via conventional or retroauricular (endoscopic or robotic) access. Methods: This study involved consecutively 35 patients who underwent unilateral neck dissection for head and neck cancer, 25 submitted to the conventional surgery [conventional group (CG)] and 10 to the retroauricular approach [retroauricular group (RG)]. Patients were evaluated preoperatively and on the 30th postoperative day (POD) regarding range of motion (ROM) of the cervical spine and shoulder, trapezius muscle strength and QOL. Results: The CG and RG were similar in terms of anthropometric, clinical and surgical variables. The mean age of both groups was between 52 and 55 years old. There was a predominance of females in the CG (52%) and males in the RG (70%); P=0.08. The most affected site was the oropharynx followed by the thyroid in the two groups and the most frequently dissected levels were I-III in both groups. There was a difference in the length of hospital stay {CG: 5 [1-22] days and RG: 2 [1-6] days; P=0.02} and pain scores at the 30th POD was higher in CG group (P=0.002). Regarding the cervical spine ROM, it was better in RG in the 30th POD for neck extension, ipsilateral lateroflexion, contralateral lateroflexion and contralateral rotation (P<0.05). No significant differences were found regarding shoulder ROM. Trapezius muscle strength, was also higher at the 30th POD in RG group (P<0.05). QOL was most impacted in the CG in the Chewing and Shoulder domains and Physical Function dimension at the 30th POD (P<0.05). Conclusions: Postoperative functional morbidity was lower in patients undergoing retroauricular neck dissection. The cervical spine ROM and trapezius muscle strength were better in patients undergoing retroauricular approach and postoperative QOL was worse in patients undergoing conventional neck dissection.

8.
J Clin Med ; 13(9)2024 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-38731017

RESUMO

Background/Objectives: Positive margins are associated with locoregional recurrence in early laryngeal cancer. The aim of this study was to evaluate the impacts of specimen-driven (ex vivo) positive margins on patients with early-stage laryngeal cancer whose tumor bed (defect-driven) margins had been negative. Methods: A retrospective study was performed on 60 consecutive T1b/T2 glottic cancer patients who underwent open frontolateral laryngectomy. The intraoperative margins were obtained from the tumor bed. Their recurrence and disease-free survival were evaluated. In all cases, negative margins were obtained from the surgical bed. The impact of positive margins from the specimen was evaluated in a paraffin study. Results: Among 10 patients with positive margins in the specimen, six experienced local relapse, and among 50 patients with negative margins in the specimen, three developed recurrence. The 5-year disease-free survival rates were 37.5% and 93.9%, respectively (p < 0.001; log-rank). Even with negative margins in the surgical bed, patients with positive margins in the specimen at the final histopathological examination had a 3.5-fold higher chance of developing local recurrence than those with negative margins (HR = 13.993; 95% CI: 3.479-56.281; p < 0.001; univariate Cox regression). Conclusions: Specimen-driven positive margins represent a significant risk factor for local recurrence, even under negative margins at the tumor bed.

9.
medRxiv ; 2024 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-38699364

RESUMO

Tobacco smoke, alone or combined with alcohol, is the predominant cause of head and neck cancer (HNC). Here, we further explore how tobacco exposure contributes to cancer development by mutational signature analysis of 265 whole-genome sequenced HNC from eight countries. Six tobacco-associated mutational signatures were detected, including some not previously reported. Differences in HNC incidence between countries corresponded with differences in mutation burdens of tobacco-associated signatures, consistent with the dominant role of tobacco in HNC causation. Differences were found in the burden of tobacco-associated signatures between anatomical subsites, suggesting that tissue-specific factors modulate mutagenesis. We identified an association between tobacco smoking and three additional alcohol-related signatures indicating synergism between the two exposures. Tobacco smoking was associated with differences in the mutational spectra and repertoire of driver mutations in cancer genes, and in patterns of copy number change. Together, the results demonstrate the multiple pathways by which tobacco smoke can influence the evolution of cancer cell clones.

10.
JCO Glob Oncol ; 10: e2300343, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38603656

RESUMO

Head and neck squamous cell carcinoma (HNSCC) is well known as a serious health problem worldwide, especially in low-income countries or those with limited resources, such as most countries in Latin America. International guidelines cannot always be applied to a population from a large region with specific conditions. This study established a Latin American guideline for care of patients with head and neck cancer and presented evidence of HNSCC management considering availability and oncologic benefit. A panel composed of 41 head and neck cancer experts systematically worked according to a modified Delphi process on (1) document compilation of evidence-based answers to different questions contextualized by resource availability and oncologic benefit regarding Latin America (region of limited resources and/or without access to all necessary health care system infrastructure), (2) revision of the answers and the classification of levels of evidence and degrees of recommendations of all recommendations, (3) validation of the consensus through two rounds of online surveys, and (4) manuscript composition. The consensus consists of 12 sections: Head and neck cancer staging, Histopathologic evaluation of head and neck cancer, Head and neck surgery-oral cavity, Clinical oncology-oral cavity, Head and neck surgery-oropharynx, Clinical oncology-oropharynx, Head and neck surgery-larynx, Head and neck surgery-larynx/hypopharynx, Clinical oncology-larynx/hypopharynx, Clinical oncology-recurrent and metastatic head and neck cancer, Head and neck surgery-reconstruction and rehabilitation, and Radiation therapy. The present consensus established 48 recommendations on HNSCC patient care considering the availability of resources and focusing on oncologic benefit. These recommendations could also be used to formulate strategies in other regions like Latin America countries.


Assuntos
Carcinoma de Células Escamosas , Neoplasias de Cabeça e Pescoço , Humanos , Carcinoma de Células Escamosas de Cabeça e Pescoço/terapia , América Latina/epidemiologia , Consenso , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/patologia , Neoplasias de Cabeça e Pescoço/terapia
11.
Arch Endocrinol Metab ; 68: e220506, 2024 Apr 04.
Artigo em Inglês | MEDLINE | ID: mdl-38578436

RESUMO

Objective: Despite a favorable prognosis, some patients with papillary thyroid carcinoma (PTC) develop recurrence. The objective of this study was to examine the impact of the combination of initial American Thyroid Association (ATA) risk stratification with serum level of postoperative stimulated thyroglobulin (s-Tg) in predicting recurrence in patients with PTC and compare the results with an assessment of response to initial therapy (dynamic risk stratification). Subjects and methods: We retrospectively analyzed 1,611 patients who had undergone total thyroidectomy for PTC, followed in most cases (87.3%) by radioactive iodine (RAI) administration. Clinicopathological features and s-Tg levels obtained 3 months postoperatively were evaluated. The patients were stratified according to ATA risk categories. Nonstimulated thyroglobulin levels and imaging studies obtained during the first year of follow-up were used to restage the patients based on response to initial therapy. Results: After a mean follow-up of 61.5 months (range 12-246 months), tumor recurrence was diagnosed in 99 (6.1%) patients. According to ATA risk, recurrence was identified in 2.3% of the low-risk, 9% of the intermediate-risk, and 25% of the high-risk patients (p < 0.001). Using a receiver operating characteristic curve approach, a postoperative s-Tg level of 10 ng/mL emerged as the ideal cutoff value, with positive and negative predictive values of 24% and 97.8%, respectively (p < 0.001). Patients with low to intermediate ATA risk with postoperative s-Tg levels < 10 ng/mL and excellent response to treatment had a very low recurrence rate (<0.8%). In contrast, higher recurrence rates were observed in intermediate-riskto high-risk patients with postoperative s-Tg > 10 ng/mL and indeterminate response (25%) and in those with incomplete response regardless of ATA category or postoperative s-Tg value (38.5-87.5%). Using proportion of variance explained (PVE), the predicted recurrence using the ATA initial risk assessment alone was 12.7% and increased to 29.9% when postoperative s-Tg was added to the logistic regression model and 49.1% with dynamic risk stratification. Conclusion: The combination of ATA staging system and postoperative s-Tg can better predict the risk of PTC recurrence. Initial risk estimates can be refined based ondynamic risk assessment following response to therapy, thus providing a useful guide for follow-up recommendations.


Assuntos
Recidiva Local de Neoplasia , Tireoglobulina , Neoplasias da Glândula Tireoide , Humanos , Radioisótopos do Iodo , Recidiva Local de Neoplasia/diagnóstico , Estudos Retrospectivos , Medição de Risco , Câncer Papilífero da Tireoide/diagnóstico , Câncer Papilífero da Tireoide/patologia , Câncer Papilífero da Tireoide/cirurgia , Neoplasias da Glândula Tireoide/diagnóstico , Neoplasias da Glândula Tireoide/patologia , Neoplasias da Glândula Tireoide/cirurgia , Tireoidectomia
12.
Cancers (Basel) ; 16(5)2024 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-38473236

RESUMO

BACKGROUND: HOXA1 is a prognostic marker and a potential predictive biomarker for radioresistance in head and neck tumors. Its overexpression has been associated with promoter methylation and a worse prognosis in oral squamous cell carcinoma (OSCC) patients. However, opposite outcomes are also described. The effect of the methylation of this gene on different gene regions, other than the promoter, remains uncertain. We investigated the methylation profile at different genomic regions of HOXA1 in OSCC and correlated differentially methylated CpG sites with clinicopathological data. METHODS: The HOXA1 DNA methylation status was evaluated by analyzing data from The Cancer Genome Atlas and three Gene Expression Omnibus datasets. Significant differentially methylated CpG sites were considered with a |∆ß| ≥ 0.10 and a Bonferroni-corrected p-value < 0.01. Differentially methylated CpGs were validated by pyrosequencing using two independent cohorts of 15 and 47 OSCC patients, respectively. RESULTS: Compared to normal tissues, we found significantly higher DNA methylation levels in the 3'UTR region of HOXA1 in OSCC. Higher methylation levels in tumor samples were positively correlated with smoking habits and patients' overall survival. CONCLUSIONS: Our findings suggest that HOXA1 gene body methylation is a promising prognostic biomarker for OSCC with potential clinical applications in patient monitoring.

13.
Crit Rev Oncol Hematol ; 196: 104326, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38479584

RESUMO

Head and neck cancer (HNC) is the 6th most common cancer across the world, with a particular increase in HNC associated with human papilloma virus (HPV) among younger populations. Historically, the standard treatment for this disease consisted of combined surgery and radiotherapy or curative platinum-based concurrent chemoradiotherapy, with associated long term and late toxicities. However, HPV-positive HNC is recognized as a unique cancer subtype, typically with improved clinical outcomes. As such, treatment de-escalation strategies have been widely researched to mitigate the adverse effects associated with the current standard of care without compromising efficacy. These strategies include treatment de-escalation, such as novel surgical techniques, alternative radiation technologies, radiation dose and volume reduction, as well as neoadjuvant chemotherapies, immunotherapies, and combined therapies. Although these therapies show great promise, many of them are still under investigation due to hesitation surrounding their widespread implementation. The objective of this review is to summarize the most recent progress in de-escalation strategies and neoadjuvant therapies designed for HPV-positive HNC. While specific treatments may require additional research before being widely adopted, encouraging results from recent studies have highlighted the advantages of neoadjuvant chemotherapy and immunotherapy, as well as radiation and surgical de-escalation approaches in managing HPV-positive HNC.


Assuntos
Neoplasias de Cabeça e Pescoço , Neoplasias Orofaríngeas , Infecções por Papillomavirus , Humanos , Terapia Neoadjuvante , Neoplasias Orofaríngeas/terapia , Infecções por Papillomavirus/complicações , Neoplasias de Cabeça e Pescoço/terapia , Neoplasias de Cabeça e Pescoço/complicações , Quimiorradioterapia
14.
Head Neck ; 46(5): 985-1000, 2024 05.
Artigo em Inglês | MEDLINE | ID: mdl-38482546

RESUMO

OBJECTIVE: This study used array comparative genomic hybridization to assess copy number alterations (CNAs) involving miRNA genes in pleomorphic adenoma (PA), recurrent pleomorphic adenoma (RPA), residual PA, and carcinoma ex pleomorphic adenoma (CXPA). MATERIALS AND METHODS: We analyzed 13 PA, 4 RPA, 29 CXPA, and 14 residual PA using Nexus Copy Number Discovery software. The miRNAs genes affected by CNAs were evaluated based on their expression patterns and subjected to pathway enrichment analysis. RESULTS: Across the groups, we found 216 CNAs affecting 2261 miRNA genes, with 117 in PA, 59 in RPA, 846 in residual PA, and 2555 in CXPA. The chromosome 8 showed higher involvement in altered miRNAs in PAs and CXPA patients. Six miRNA genes were shared among all groups. Additionally, miR-21, miR-455-3p, miR-140, miR-320a, miR-383, miR-598, and miR-486 were prominent CNAs found and is implicated in carcinogenesis of several malignant tumors. These miRNAs regulate critical signaling pathways such as aerobic glycolysis, fatty acid biosynthesis, and cancer-related pathways. CONCLUSION: This study was the first to explore CNAs in miRNA-encoding genes in the PA-CXPA sequence. The findings suggest the involvement of numerous miRNA genes in CXPA development and progression by regulating oncogenic signaling pathways.


Assuntos
Adenocarcinoma , Adenoma Pleomorfo , MicroRNAs , Neoplasias das Glândulas Salivares , Humanos , Adenoma Pleomorfo/genética , Adenoma Pleomorfo/patologia , Variações do Número de Cópias de DNA , Neoplasias das Glândulas Salivares/patologia , MicroRNAs/genética , Hibridização Genômica Comparativa , Transformação Celular Neoplásica/patologia , Adenocarcinoma/patologia
15.
Braz J Otorhinolaryngol ; 90(3): 101404, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38461656

RESUMO

OBJECTIVE: To compare the oncological results and the functional outcomes of patients undergoing Total Laryngectomy (TL) with the non-surgical treatment (organ preservation protocol) in the treatment of advanced laryngeal carcinomas through systematic review and meta-analysis. METHODS: A literature survey strategy was employed in order to perform a systematic review of the available evidence. Success rate and functional outomes after oncological treatment of patients with advanced laryngeal carcinomas was evaluated through systematic review and metanalysis, comparing TL and organ preservation protocol. RESULTS: The surgical treatment was associated with better survival outcomes. When stratifying by T stage, while patients with T4 staging have less risk of mortality with TL, there is no difference between the different treatments for patients with T3 tumors. Surgery is related to a lower chance of recurrence, late dysphagia and feeding tube dependence. CONCLUSION: Patients with T4 tumors should undergo TL as their treatment of choice. For patients with T3 tumors, there is no differences on the risk of mortality according to the therapeutic option, however, there is a greater chance of recurrence and dysphagia when surgery is not performed.


Assuntos
Neoplasias Laríngeas , Laringectomia , Estadiamento de Neoplasias , Tratamentos com Preservação do Órgão , Humanos , Neoplasias Laríngeas/cirurgia , Neoplasias Laríngeas/mortalidade , Neoplasias Laríngeas/patologia , Laringectomia/métodos , Tratamentos com Preservação do Órgão/métodos , Resultado do Tratamento , Recidiva Local de Neoplasia
16.
Lancet Reg Health Am ; 31: 100690, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38370581

RESUMO

Colonialism's enduring impact on Brazil has had significant implications for health and oncology outcomes. This historical essay delves into the profound changes brought about by the transatlantic slave trade from Africa to the Americas, particularly in terms of its influence on the economy, sociocultural habits, and health outcomes. This essay explores the enduring connections between the colonial period's operational dynamics in Brazil and the current epidemiological panorama of head and neck cancer (HNC). The examination provides original insights on the role of tobacco and alcohol production and consumption, alongside the investigation of structural racism, which contributes to disparities in access to diagnosis, treatment, and prognosis for patients with HNC. This article presents novel visions and an analysis of evidence-based strategies to disrupt the adverse impact of colonialism's legacy on the epidemiology of HNC in Brazil.

17.
BMC Cancer ; 24(1): 213, 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38360653

RESUMO

BACKGROUND: The clinical significance of single cell invasion and large nuclear diameter is not well documented in early-stage oral tongue squamous cell carcinoma (OTSCC). METHODS: We used hematoxylin and eosin-stained sections to evaluate the presence of single cell invasion and large nuclei in a multicenter cohort of 311 cases treated for early-stage OTSCC. RESULTS: Single cell invasion was associated in multivariable analysis with poor disease-specific survival (DSS) with a hazard ratio (HR) of 2.089 (95% CI 1.224-3.566, P = 0.007), as well as with disease-free survival (DFS) with a HR of 1.666 (95% CI 1.080-2.571, P = 0.021). Furthermore, large nuclei were associated with worse DSS (HR 2.070, 95% CI 1.216-3.523, P = 0.007) and with DFS in multivariable analysis (HR 1.645, 95% CI 1.067-2.538, P = 0.024). CONCLUSION: Single cell invasion and large nuclei can be utilized for classifying early OTSCC into risk groups.


Assuntos
Carcinoma de Células Escamosas , Neoplasias de Cabeça e Pescoço , Neoplasias da Língua , Humanos , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia , Prognóstico , Carcinoma de Células Escamosas/patologia , Neoplasias da Língua/patologia , Neoplasias de Cabeça e Pescoço/patologia , Estadiamento de Neoplasias , Estudos Retrospectivos
18.
Cell Genom ; 4(3): 100500, 2024 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-38325367

RESUMO

Large-scale biorepositories and databases are essential to generate equitable, effective, and sustainable advances in cancer prevention, early detection, cancer therapy, cancer care, and surveillance. The Mutographs project has created a large genomic dataset and biorepository of over 7,800 cancer cases from 30 countries across five continents with extensive demographic, lifestyle, environmental, and clinical information. Whole-genome sequencing is being finalized for over 4,000 cases, with the primary goal of understanding the causes of cancer at eight anatomic sites. Genomic, exposure, and clinical data will be publicly available through the International Cancer Genome Consortium Accelerating Research in Genomic Oncology platform. The Mutographs sample and metadata biorepository constitutes a legacy resource for new projects and collaborations aiming to increase our current research efforts in cancer genomic epidemiology globally.


Assuntos
Neoplasias , Humanos , Neoplasias/diagnóstico , Genômica , Bases de Dados Factuais , Atenção à Saúde , Bancos de Espécimes Biológicos
19.
Oral Dis ; 2024 Feb 21.
Artigo em Inglês | MEDLINE | ID: mdl-38380784

RESUMO

OBJECTIVE: This study aimed to explore perceived barriers to early diagnosis and management of oral cancer, as well as potential pathways for improvement in Latin America and the Caribbean (LAC). METHODS: This cross-sectional study used a self-administered online questionnaire created via the Research Electronic Data Capture platform. The survey was distributed to health professionals trained in Oral Medicine, Oral Pathology, Oral and Maxillofacial Surgery, and Dentists with clinical and academic expertise in oral potentially malignant disorder (OPMD) and oral cancer. Data obtained were systematically organized and analyzed descriptively using Microsoft Excel. RESULTS: Twenty-three professionals from 21 LAC countries participated. Major barriers included the limited implementation of OPMD and oral cancer control plans (17.4%), low compulsory reporting for OPMD (8.7%) and oral cancer (34.8%), unclear referral pathways for OPMD (34.8%) and oral cancer (43.5%), and a shortage of trained professionals (8.7%). Participants endorsed the utility of online education (100%) and telemedicine (91.3%). CONCLUSION: The survey highlights major perceived barriers to early diagnosis and management of OPMD and oral cancer in LAC, as well as potential avenues for improvement.

20.
Laryngoscope ; 134(8): 3862-3867, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38411345

RESUMO

OBJECTIVE: We investigated motivation levels across the general Brazilian population and subgroups and their willingness to spend for surgery without a cervical scar. METHODS: This random-sample survey was performed by a specialized third-party research institute. In this study, we created a hypothetical thyroidectomy scenario, and the transcervical and transoral endoscopic thyroidectomy vestibular approach (TOETVA) were used. The survey included sociocultural data and questions regarding participants' surgical preferences. RESULTS: Data were obtained from 1250 participants; 42.4% were of the opinion that a cervical scar affects social or professional life. Young and childless women were most likely to be affected (p <0.001). All respondents accepted the transoral approach to avoid cervical scarring. However, 30.7% and 31.9% of respondents maintained their preference for TOETVA despite understanding the risks of a hypothetical increase in complications and unfavorable oncological outcomes and 98.6% were of the opinion that this approach was likely associated with greater postoperative pain. Only 16.2% were unwilling to spend for TOETVA. The variable that most affected patients' willingness to spend was a salary greater than 10 Brazilian minimum wages (odds ratio 9.797, 95% confidence interval, p <0.005). Upper class respondents were 10 times more likely to spend for TOETVA than lower class patients. CONCLUSION: This study highlights patients' interest in TOETVA. Cervical scar perception is affected by concerned about appearance, particularly in certain societal subgroups. Our study population showed significant motivation to undergo TOETVA, which was emphasized by their acceptance of the complication rate, poor postoperative outcomes, greater postoperative pain, and willingness to spend on surgery with an invisible scar. LEVEL OF EVIDENCE: 4 Laryngoscope, 134:3862-3867, 2024.


Assuntos
Cicatriz , Estética , Tireoidectomia , Humanos , Feminino , Cicatriz/psicologia , Cicatriz/etiologia , Cicatriz/prevenção & controle , Tireoidectomia/efeitos adversos , Tireoidectomia/métodos , Brasil , Masculino , Adulto , Pessoa de Meia-Idade , Inquéritos e Questionários , Adulto Jovem , Motivação , Idoso , Adolescente , Preferência do Paciente/estatística & dados numéricos
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