128 Primary lung cancer surgery should be done by VATS (video assisted thoracoscopic surgery)

Background Uniportal video-assisted thoracoscopic surgery is one of the latest development in minimal invasive thoracic surgery. It is being increasing applied in various parts of the world for the treatment of lung cancer. Although the technique has become popular, there is a lack of largescale literature addressing the safety and oncological outcomes. We aimed to describe our experience, highlighting the short-term outcomes and oncological efficacy. Methods From July 2013 to December 2017, 441 uniportal video-assisted thoracoscopic procedures were carried out in patients with primary lung cancer and no metastatic disease. The male-to-female ratio was 240:201. The median age of the patients was 63 years (range10 to 85 years). Results The median number of mediastinal lymph node stations dissected and median number of mediastinal nodes were 5 and 14, respectively. Ten or more nodes were dissected in 93.1% of patients. All surgeries were complete R0 resection. Minor postoperative morbidity according to the Clavien-Dindo classification was 4%. Seven patients experienced major morbidity requiring intensive care management. There was no 30-day mortality. Conclusion Uniportal video-assisted thoracoscopic anatomical resection for lung cancer appears to have similar postoperative outcomes to multiport surgery in terms of short-term morbidity and oncological efficacy. Uniportal video-assisted thoracoscopic surgery can be offered as a standard of care for lung cancer surgery in centers with adequate surgical expertise. Long-term follow-up will be needed to establish the long-term oncological outcomes.

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Circulating tumour cells and circulating cell-free DNA in patients with lung cancer: a comparison between thoracotomy and video-assisted thoracoscopic surgery

BMJ Open Respiratory Research ◽

10.1136/bmjresp-2021-000917 ◽

2021 ◽

Vol 8 (1) ◽

pp. e000917

Author(s):

Periklis Katopodis ◽

Vladimir Anikin ◽

Uday Kishore ◽

Thomas Carter ◽

Marcia Hall ◽

...

Keyword(s):

Lung Cancer ◽

Thoracoscopic Surgery ◽

Lung Cancer Surgery ◽

Dna Integrity ◽

Cell Free Dna ◽

Video Assisted ◽

Free Dna ◽

The Impact ◽

Video Assisted Thoracoscopic Surgery ◽

Circulating Cell Free Dna

IntroductionThe type of lung cancer surgery impacts on tumour manipulation during surgery and may drive dissemination of cancer cells into the vasculature, thus facilitating metastatic spread. The aim of this study was to investigate the impact of surgically induced trauma using peripheral blood from preoperative and postoperative patients with non-small cell lung cancer (NSCLC) undergoing thoracotomy or video-assisted thoracoscopic surgery (VATS) resection.MethodsImaging flow cytometry was used to measure circulating cancer-associated cells (CCs). Circulating cell-free DNA (ccfDNA) isolation was performed using Promega dsDNA HS Assay Kit. DNA integrity measurements were calculated by the ALU247 to ALU115 ratio and cytokine levels measured using the Luminex screening assay.ResultsCCs were increased in postoperative blood samples in 54 patients with NSCLC. Patients who underwent thoracotomy instead of VATS had higher numbers of EpCAM (p=0.004) and PanCK-labelled (p=0.03) CCs postoperatively. ccfDNA and DNA integrity index were also significantly increased in postoperative samples (p=0.0009 and p=0.04), with concomitant increase in interleukin 6 and interleukin 10 levels in the same cohorts (p=0.0004 and p=0.034, respectively).ConclusionsIn this study we have shown the potential clinical utility of several biomarkers from liquid biopsies to guide perioperative management, as well as provide a snapshot of the type of surgical resection in terms of circulating tumour cell release. Obtaining reliable readouts from blood can provide crucial information for disease progression, as well as being of prognostic value monitoring patients’ response to treatment.

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