Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 419
Filtrar
1.
J Laparoendosc Adv Surg Tech A ; 34(9): 798-807, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39288366

RESUMO

The treatment of non-small cell lung cancer (NSCLC) has evolved tremendously in recent decades as innovations in medical therapies advanced concomitantly with minimally invasive surgical techniques. Despite early skepticism regarding its benefits, video-assisted thoracoscopic surgery (VATS) techniques for the surgical resection of early-stage NSCLC have now become the standard of care. After being the subject of many studies since its inception, VATS has been shown to cause less postoperative pain, have shorter recovery time, and have fewer overall complications when compared to conventional open approaches. Furthermore, some studies have shown it to have comparable oncological outcomes, though more higher evidence studies are needed. Newer technologies and improved surgical instruments, advancements in nodule localization techniques, and improved preoperative staging procedures have allowed for the development of newer, less invasive techniques such as uniportal VATS and parenchymal-sparing sublobar resections, which might further improve postoperative rates of complications in specific cases. These minimally invasive approaches have allowed surgeons to offer surgery to high-risk patients and those who would otherwise not tolerate conventional thoracotomy, though some relative contraindications still exist. This review aims to describe the evolution of VATS lobectomy, current techniques, its indications, contraindications, preoperative testing, benefits, and outcomes in patients with stage I and II NSCLC.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Estadiamento de Neoplasias , Pneumonectomia , Cirurgia Torácica Vídeoassistida , Humanos , Cirurgia Torácica Vídeoassistida/métodos , Neoplasias Pulmonares/cirurgia , Neoplasias Pulmonares/patologia , Pneumonectomia/métodos , Carcinoma Pulmonar de Células não Pequenas/cirurgia , Carcinoma Pulmonar de Células não Pequenas/patologia
2.
Plants (Basel) ; 13(17)2024 Aug 23.
Artigo em Inglês | MEDLINE | ID: mdl-39273841

RESUMO

Fruit shape significantly impacts the quality and commercial value of tomatoes (Solanum lycopersicum L.). Precise grading is essential to elucidate the genetic basis of fruit shape in breeding programs, cultivar descriptions, and variety registration. Despite this, fruit shape classification is still primarily based on subjective visual inspection, leading to time-consuming and labor-intensive processes prone to human error. This study presents a novel approach incorporating machine learning techniques to establish a robust fruit shape classification system. We trained and evaluated seven supervised machine learning algorithms by leveraging a public dataset derived from the Tomato Analyzer tool and considering the current four classification systems as label variables. Subsequently, based on class-specific metrics, we derived a novel classification framework comprising seven discernible shape classes. The results demonstrate the superiority of the Support Vector Machine model in terms of its accuracy, surpassing human classifiers across all classification systems. The new classification system achieved the highest accuracy, averaging 88%, and maintained a similar performance when validated with an independent dataset. Positioned as a common standard, this system contributes to standardizing tomato fruit shape classification, enhancing accuracy, and promoting consensus among researchers. Its implementation will serve as a valuable tool for overcoming bias in visual classification, thereby fostering a deeper understanding of consumer preferences and facilitating genetic studies on fruit shape morphometry.

5.
Int J Cardiol Cardiovasc Risk Prev ; 22: 200298, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38983606

RESUMO

Background: The objective of this research is to evaluate the efficacy and safety of drugs in the residual risk in any of its three components: lipid, inflammatory and thrombotic risk. Methods: A systematic review was conducted of randomized clinical trials that included as a primary outcome, at least one of the conditions related to atherosclerotic cardiovascular disease. The databases used were PUBMED/MEDLINE, Scopus and ClinicalTrials.gov. The risk of bias of the studies was assessed using the Risk of Bias 2 tool. Results: and discussion: 18 studies were included in the analysis. Half of the studies had low risk of bias or some concerns. Several drugs were effective in reducing the primary outcome: ethyl eicosapentaenoeic acid (17.2 % E-EPA versus 22 % placebo HR: 0.75; 95 % CI 0.68-0.83; p < 0.001), colchicine in stable coronary artery disease (6.8 % vs placebo 9.6 %, HR 0.59, 95 % CI 0.57-0.83; p < 0.001), Canakinumab (150 mg vs placebo ARR 15 %, HR 0.85, 95 % CI 0.74-0.98; p = 0.021) and Rivaroxaban with Aspirin in stable atherosclerotic disease (4.1 % versus aspirin 5.4 %, HR 0.76, 95 % CI 0.66-0.86, P < 0.001). Serious adverse events did not differ between study groups, except for a higher rate of bleeding with the use of combination antithrombotic therapy. Conclusion: The residual risk can be reduced through the use of different drugs that act by modifying atherogenic lipid levels, modulating inflammatory pathways and the risk of thrombosis, with an acceptable safety profile in most studies.

6.
Sci Rep ; 14(1): 15085, 2024 07 02.
Artigo em Inglês | MEDLINE | ID: mdl-38956222

RESUMO

Obesity poses significant challenges, necessitating comprehensive strategies for effective intervention. Bariatric Surgery (BS) has emerged as a crucial therapeutic approach, demonstrating success in weight loss and comorbidity improvement. This study aimed to evaluate the outcomes of BS in a cohort of 48 Uruguayan patients and investigate the interplay between BS and clinical and metabolic features, with a specific focus on FSTL1, an emerging biomarker associated with obesity and inflammation. We quantitatively analyzed BS outcomes and constructed linear models to identify variables impacting BS success. The study revealed the effectiveness of BS in improving metabolic and clinical parameters. Importantly, variables correlating with BS success were identified, with higher pre-surgical FSTL1 levels associated with an increased effect of BS on BMI reduction. FSTL1 levels were measured from patient plasma using an ELISA kit pre-surgery and six months after. This research, despite limitations of a small sample size and limited follow-up time, contributes valuable insights into understanding and predicting the success of BS, highlighting the potential role of FSTL1 as a useful biomarker in obesity.


Assuntos
Cirurgia Bariátrica , Biomarcadores , Proteínas Relacionadas à Folistatina , Obesidade , Humanos , Proteínas Relacionadas à Folistatina/sangue , Proteínas Relacionadas à Folistatina/metabolismo , Feminino , Masculino , Cirurgia Bariátrica/métodos , Adulto , Pessoa de Meia-Idade , Biomarcadores/sangue , Obesidade/cirurgia , Obesidade/metabolismo , Uruguai/epidemiologia , Estudos de Coortes , Redução de Peso , Resultado do Tratamento , Índice de Massa Corporal
7.
J Laparoendosc Adv Surg Tech A ; 34(9): 786-797, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38900703

RESUMO

Background: Lung cancer is a leading cause of cancer deaths in the United States. An increasing understanding of relevant non-small cell lung cancer (NSCLC) biomarkers has led to the recent development of molecular-targeted therapies and immune checkpoint inhibitors that have revolutionized treatment for patients with advanced and metastatic disease. The purpose of this review is to provide surgeons with a state-of-the-art understanding of the current medical and surgical treatment trends and their implications in the future of management of NSCLC. Materials and Methods: A systematic search of PubMed was conducted to identify English language articles published between January 2010 and March 2024 focusing on molecular markers, tumor targeting, and immunotherapy in the diagnosis and treatment of NSCLC. Case series, observational studies, randomized trials, guidelines, narrative reviews, systematic reviews, and meta-analyses were included. Results: There is now increasing data to suggest that molecular-targeted therapies and immune therapies have a role in the neoadjuvant setting. Advances in intraoperative imaging allow surgeons to perform increasingly parenchymal-sparing lung resections without compromising tumor margins. Liquid biopsies can noninvasively detect targetable mutations in cancer cells and DNA from a blood draw, potentially allowing for earlier diagnosis, personalized therapy, and long-term monitoring for disease recurrence. Conclusions: The management of NSCLC has advanced dramatically in recent years fueled by a growing understanding of the cancer biology of NSCLC. Advances in medical therapies, surgical techniques, and diagnostic and surveillance modalities continue to evolve but have already impacted current treatment strategies for NSCLC, which are encompassed in this review.


Assuntos
Biomarcadores Tumorais , Carcinoma Pulmonar de Células não Pequenas , Imunoterapia , Neoplasias Pulmonares , Humanos , Carcinoma Pulmonar de Células não Pequenas/terapia , Carcinoma Pulmonar de Células não Pequenas/genética , Neoplasias Pulmonares/terapia , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/genética , Imunoterapia/métodos , Biomarcadores Tumorais/sangue , Terapia de Alvo Molecular/métodos , Inibidores de Checkpoint Imunológico/uso terapêutico
9.
Rev Gastroenterol Peru ; 44(1): 52-62, 2024.
Artigo em Espanhol | MEDLINE | ID: mdl-38734912

RESUMO

Obesity has become a growing global epidemic, demanding effective solutions for its management. Bariatric-metabolic surgery is currently the best therapeutic option for patients with morbid obesity and associated comorbidities. This review article addresses the importance of endoscopy in the preoperative and postoperative evaluation, as well as in the detection and management of complications associated with bariatric surgery.


Assuntos
Cirurgia Bariátrica , Obesidade Mórbida , Complicações Pós-Operatórias , Humanos , Cirurgia Bariátrica/métodos , Cirurgia Bariátrica/efeitos adversos , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/diagnóstico , Obesidade Mórbida/cirurgia , Obesidade Mórbida/complicações , Endoscopia Gastrointestinal/métodos , Resultado do Tratamento
10.
J Laparoendosc Adv Surg Tech A ; 34(9): 773-785, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38727568

RESUMO

Background: Lung cancer remains the leading cause of cancer deaths in the United States despite declining incidence and improved outcomes because of advancements in early detection and development of novel therapies. Accurate mediastinal lymph node staging is crucial for determining prognosis and guiding treatment decisions, particularly for non-small cell lung cancer (NSCLC). Materials and Methods: A systematic search of PubMed was conducted to identify English language articles published between January 2010 and January 2024 focusing on preoperative lymph node staging in adults with NSCLC. Case series, observational studies, randomized trials, guidelines, narrative reviews, systematic reviews, and meta-analyses were included. Results: Various imaging modalities, surgical and nonsurgical procedures for mediastinal lymph node staging were reviewed, including positron emission tomography with computed tomography, cervical mediastinoscopy, video-assisted cervical mediastinoscopy, anterior mediastinotomy, video-assisted thoracoscopy, endobronchial ultrasound-guided fine needle aspiration (EBUS-FNA), transesophageal endoscopic ultrasound-guided fine needle aspiration (EUS-FNA), and computed tomography-guided percutaneous lymph node biopsy. EBUS-FNA emerged as the preferred initial staging procedure because of its high sensitivity and low complication rate. Combining it with other procedures or confirmatory testing may be helpful in determining appropriate treatment. Conclusions: Although cervical mediastinoscopy remains a valuable confirmatory procedure in select cases, its role as a first-line staging modality is diminishing with the widespread adoption of EBUS-FNA and EUS-FNA. The combination of EBUS-FNA and EUS-FNA allows access to nearly all mediastinal lymph node stations with high diagnostic accuracy. Future research may further refine the selection criteria for invasive mediastinal staging procedures, ultimately optimizing patient outcomes in the management of NSCLC.


Assuntos
Carcinoma Pulmonar de Células não Pequenas , Neoplasias Pulmonares , Mediastinoscopia , Mediastino , Estadiamento de Neoplasias , Humanos , Carcinoma Pulmonar de Células não Pequenas/patologia , Carcinoma Pulmonar de Células não Pequenas/diagnóstico por imagem , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/diagnóstico por imagem , Mediastino/patologia , Mediastinoscopia/métodos , Linfonodos/patologia , Linfonodos/diagnóstico por imagem , Metástase Linfática/patologia , Procedimentos Cirúrgicos Minimamente Invasivos/métodos , Aspiração por Agulha Fina Guiada por Ultrassom Endoscópico/métodos , Cirurgia Torácica Vídeoassistida/métodos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA