5 research outputs found

    Analysis of Expression of Vascular Endothelial Growth Factor A and Hypoxia Inducible Factor-1alpha in Patients Operated on Stage I Non-Small-Cell Lung Cancer

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    Objectives. Recent studies show that expression of hypoxia inducible factor-1alpha (HIF-1α) favours expression of vascular endothelial growth factor A (VEGF-A), and these biomarkers are linked to cellular proliferation, angiogenesis, and metastasis in different cancers. We analyze expression of HIF-1α and VEGF-A to clinicopathologic features and survival of patients operated on stage I non-small-cell lung cancer. Methodology. Prospective study of 52 patients operated on with stage I. Expression of VEGF-A and HIF-1α was performed through real-time quantitative polymerase chain reaction (qRT-PCR). Results. Mean age was 64.7 and 86.5% of patients were male. Stage IA represented 23.1% and stage IB 76.9%. Histology classification was 42.3% adenocarcinoma, 34.6% squamous cell carcinoma, and 23.1% others. Median survival was 81.0 months and 5-year survival 67.2%. There was correlation between HIF-1α and VEGF-A (P=0.016). Patients with overexpression of HIF-1α had a tendency to better survival with marginal statistical significance (P=0.062). Patients with overexpression of VEGF-A had worse survival, but not statistically significant (P=0.133). Conclusion. The present study revealed that VEGF-A showed correlation with HIF-1α. HIF-1α had a tendency to protective effect with a P value close to statistical significance. VEGF-A showed a contrary effect but without statistical significance

    Manejo quirúrgico del neumotórax espontáneo primario. Encuesta nacional del Grupo Emergente de Cirugía Torácica de la Sociedad Española de Neumología y Cirugía Torácica (SEPAR)

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    Resumen: Introducción: En febrero de 2022, el Grupo Emergente de Cirugía Torácica de la Sociedad Española de Neumología y Cirugía Torácica inició un estudio multicéntrico sobre el manejo quirúrgico del neumotórax espontáneo primario (NEP). Como paso previo, se desarrolló esta encuesta cuyo objetivo fue conocer la situación actual en nuestro país, y así, concretar y dirigir dicho proyecto. Método: Se realizó un estudio descriptivo a partir de los resultados de esta encuesta lanzada a través de la plataforma Google Docs®. La encuesta se envió a todos los cirujanos torácicos nacionales en activo, un total de 319. Esta constaba de 20 preguntas que incluían datos demográficos, quirúrgicos y de seguimiento. Resultados: Se obtuvieron 124 respuestas (39% del conjunto de médicos especialistas y médicos en formación del territorio nacional). Las indicaciones más consistentes fueron: recidiva homolateral para 124 (100%), falta de resolución del episodio para 120 (96,7%), profesiones de riesgo para 104 (84%) y neumotórax bilateral para 93 (75%). El abordaje de elección para el 100% de los encuestados fue la videotoracoscopia. De estos, 96 contemplaban la resección pulmonar de las lesiones evidentes (77%). En relación con la técnica de pleurodesis, la abrasión pleural es la técnica más utilizada por 70 de los encuestados (56,7%), mientras que 49 (40%) realiza pleurodesis química con talco, bien sola, o en combinación con la pleurodesis mecánica. Conclusiones: Si bien hay cierta consistencia en algunos aspectos del manejo quirúrgico del NEP, esta encuesta hace evidente la variabilidad en cuanto a las técnicas de pleurodesis aplicadas entre los cirujanos de nuestro país. Abstract: Introduction: In February 2022, the Emerging Thoracic Surgery Group of the Spanish Society of Pneumology and Thoracic Surgery initiated a multicenter study on the surgical management of primary spontaneous pneumothorax (PSP). As a preliminary step, this survey was developed with the aim of finding out the current situation in our country to specify and direct this project. Method: A descriptive study was carried out based on the results of this survey launched through the Google Docs® platform. The survey was sent to all active national thoracic surgeons, a total of 319. It consisted of 20 questions including demographic, surgical and follow-up data. Results: We obtained 124 responses (39% of all specialists and doctors in training in the national territory). The most consistent indications were: homolateral recurrence for 124 (100%), lack of resolution of the episode for 120 (96.7%), risk professions for 104 (84%) and bilateral pneumothorax for 93 (75%). The approach of choice for 100% of respondents was videothoracoscopy. Of these, 96 contemplated pulmonary resection of obvious lesions (77%). Regarding the pleurodesis technique, pleural abrasion was the technique most used by 70 respondents (56.7%) while 49 (40%) performed chemical pleurodesis with talc either alone or in combination with mechanical pleurodesis. Conclusions: While there is some consistency in some aspects of surgical management of PSP, this survey makes evident the variability in pleurodesis techniques applied among surgeons in our country
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