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      Papel actual de la videomediastinoscopía en el cáncer pulmonar Translated title: Current Role of Videomediastinoscopy in Lung Cancer

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          Abstract

          RESUMEN La exploración mediastinal comienza desde la época de Galeno. Su desarrollo se alcanzó en la segunda mitad del siglo XX, utilizada para el estudio de los ganglios y tumores mediastinales. En la actualidad su uso se ha ampliado no solo como diagnóstico, sino con fines terapéuticos, al lograr realizar resecciones pulmonares. El objetivo es realizar una revisión actualizada de la literatura, acerca del uso de la mediastinoscopia en el diagnóstico del cáncer pulmonar. Se realizó una revisión de la literatura médica donde se utilizaron las bases de datos Scopus, Medline y Cochrane bajo los criterios de sus revisores. Se emplearon las palabras claves en idioma español e inglés. El método de análisis y síntesis se usó para la interpretación de la bibliografía. Se revisaron 173 artículos, de los cuales, se escogieron 58, que cumplían con los criterios de selección, entre ellos, 6 meta análisis, 11 artículos de revisión y 41 artículos originales. La videomediastinoscopía constituye una herramienta válida para el diagnóstico, así como para el estadiamiento de enfermedades dentro y fuera de la cavidad torácica y mediastino. Por otra parte, permite el tratamiento de algunas enfermedades.

          Translated abstract

          ABSTRACT The mediastinal exploration begins from the time of Galen. Its development was reached in the second half of the 20th century, used for the study of lymph nodes and mediastinal tumors. At present its use has been expanded not only as a diagnosis, but also for therapeutic purposes, by achieving lung resections. The objective is to carry out an updated review of the literature on the use of mediastinoscopy in the diagnosis of lung cancer. A review of the medical literature was carried out where the Scopus, Medline and Cochrane databases were used under the criteria of their reviewers. The keywords in Spanish and English were used. The method of analysis and synthesis was used for the interpretation of the bibliography. 173 articles were reviewed, of which 58 were chosen, which met the selection criteria, including 6 meta-analyzes, 11 review articles, and 41 original articles. Videomediastinoscopy is a valid tool for diagnosis, as well as for the staging of diseases inside and outside the thoracic cavity and mediastinum. On the other hand, it allows the treatment of some diseases.

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          Most cited references58

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          Revised ESTS guidelines for preoperative mediastinal lymph node staging for non-small-cell lung cancer.

          Accurate preoperative staging and restaging of mediastinal lymph nodes in patients with potentially resectable non-small-cell lung cancer (NSCLC) is of paramount importance. In 2007, the European Society of Thoracic Surgeons (ESTS) published an algorithm on preoperative mediastinal staging integrating imaging, endoscopic and surgical techniques. In 2009, the International Association for the Study of Lung Cancer (IASLC) introduced a new lymph node map. Some changes in this map have an important impact on mediastinal staging. Moreover, more evidence of the different mediastinal staging technique has become available. Therefore, a revision of the ESTS guidelines was needed. In case of computed tomography (CT)-enlarged or positron emission tomography (PET)-positive mediastinal lymph nodes, tissue confirmation is indicated. Endosonography [endobronchial ultrasonography (EBUS)/esophageal ultrasonography (EUS)] with fine-needle aspiration (FNA) is the first choice (when available), since it is minimally invasive and has a high sensitivity to rule in mediastinal nodal disease. If negative, surgical staging with nodal dissection or biopsy is indicated. Video-assisted mediastinoscopy is preferred to mediastinoscopy. The combined use of endoscopic staging and surgical staging results in the highest accuracy. When there are no enlarged lymph nodes on CT and when there is no uptake in lymph nodes on PET or PET-CT, direct surgical resection with systematic nodal dissection is indicated for tumours ≤ 3 cm located in the outer third of the lung. In central tumours or N1 nodes, preoperative mediastinal staging is indicated. The choice between endoscopic staging with EBUS/EUS and FNA or video-assisted mediastinoscopy depends on local expertise to adhere to minimal requirements for staging. For tumours >3 cm, preoperative mediastinal staging is advised, mainly in adenocarcinoma with high standardized uptake value. For restaging, invasive techniques providing histological information are advisable. Both endoscopic techniques and surgical procedures are available, but their negative predictive value is lower compared with the results obtained in baseline staging. An integrated strategy using endoscopic staging techniques to prove mediastinal nodal disease and mediastinoscopy to assess nodal response after induction therapy needs further study.
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            Methods for staging non-small cell lung cancer: Diagnosis and management of lung cancer, 3rd ed: American College of Chest Physicians evidence-based clinical practice guidelines.

            Correctly staging lung cancer is important because the treatment options and prognosis differ significantly by stage. Several noninvasive imaging studies and invasive tests are available. Understanding the accuracy, advantages, and disadvantages of the available methods for staging non-small cell lung cancer is critical to decision-making. Test accuracies for the available staging studies were updated from the second iteration of the American College of Chest Physicians Lung Cancer Guidelines. Systematic searches of the MEDLINE database were performed up to June 2012 with the inclusion of selected meta-analyses, practice guidelines, and reviews. Study designs and results are summarized in evidence tables. The sensitivity and specificity of CT scanning for identifying mediastinal lymph node metastasis were approximately 55% and 81%, respectively, confirming that CT scanning has limited ability either to rule in or exclude mediastinal metastasis. For PET scanning, estimates of sensitivity and specificity for identifying mediastinal metastasis were approximately 77% and 86%, respectively. These findings demonstrate that PET scanning is more accurate than CT scanning, but tissue biopsy is still required to confirm PET scan findings. The needle techniques endobronchial ultrasound-needle aspiration, endoscopic ultrasound-needle aspiration, and combined endobronchial ultrasound/endoscopic ultrasound-needle aspiration have sensitivities of approximately 89%, 89%, and 91%, respectively. In direct comparison with surgical staging, needle techniques have emerged as the best first diagnostic tools to obtain tissue. Based on randomized controlled trials, PET or PET-CT scanning is recommended for staging and to detect unsuspected metastatic disease and avoid noncurative resections. Since the last iteration of the staging guidelines, PET scanning has assumed a more prominent role both in its use prior to surgery and when evaluating for metastatic disease. Minimally invasive needle techniques to stage the mediastinum have become increasingly accepted and are the tests of first choice to confirm mediastinal disease in accessible lymph node stations. If negative, these needle techniques should be followed by surgical biopsy. All abnormal scans should be confirmed by tissue biopsy (by whatever method is available) to ensure accurate staging. Evidence suggests that more complete staging improves patient outcomes.
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              Endobronchial ultrasound-guided transbronchial needle aspiration for staging of lung cancer: a systematic review and meta-analysis.

              Recently, less invasive methods have emerged as potential alternatives for staging with tissue confirmation of suspected metastatic mediastinal lymph nodes in lung cancer. The objective of this review was to assess the overall diagnostic accuracy of EBUS-TBNA in detecting metastatic mediastinal lymph node in lung cancer with a meta-analysis. The MEDLINE, EMBASE, Cancerlit and Cochrane Library database, from January 1995 to September 2008, were searched for studies evaluating EBUS-TBNA accuracy. Meta-analysis methods were used to pool sensitivity and specificity and to construct summary receiver-operating characteristic. A total of 11 studies with 1299 patients, who fulfilled all of the inclusion criteria, were considered for the analysis. No publication bias was found. EBUS-TBNA had a pooled sensitivity of 0.93 (95% CI, 0.91-0.94) and a pooled specificity of 1.00 (95% CI, 0.99-1.00). The subgroup of patients who were selected on the basis of CT or PET positive results had higher pooled sensitivity (0.94, 95% CI 0.93-0.96) than the subgroup of patients without any selection of CT or PET (0.76, 95% CI 0.65-0.85) (p<0.05). Study sensitivity was not correlated with the prevalence of lymph node metastasis. Only two complications occurred (0.15%). EBUS-TBNA was an accurate, safe and cost-effective tool in lung cancer staging. The selection of patients who had positive results of suspected lymph node metastasis in CT or PET may improve the sensitivity of EBUS-TBNA. High-quality prospective studies regarding EBUS-TBNA in lung cancer staging are still needed to be conducted.
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                Author and article information

                Journal
                cir
                Revista Cubana de Cirugía
                Rev Cubana Cir
                Editorial Ciencias Médicas (Ciudad de la Habana, , Cuba )
                0034-7493
                1561-2945
                June 2020
                : 59
                : 2
                : e917
                Affiliations
                [1] Camagüey orgnameUniversidad de Ciencias Médicas de Camagüey orgdiv1Hospital Universitario “Manuel Ascunce Domenech” Cuba
                Article
                S0034-74932020000200008 S0034-7493(20)05900200008
                edcaff03-b545-4a5f-952b-a6975c285dcd

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 27 March 2020
                : 27 February 2020
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 58, Pages: 0
                Product

                SciELO Cuba


                extended transcervical lymphadenectomy,mediastinoscopia,complications,complicaciones,linfoadenectomía transcervical extendida,mediastinoscopy,endosonography,cáncer del pulmón,lung cancer,endosonografia

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