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Objectives: Persistent air leak (PAL; >5 days after surgery) is the most common complication after pulmonary resection and associated with prolonged hospital stay and increased morbidity. Literature is contradictory about the prevention and treatment of PAL. Variation is therefore hypothesized. The aim of this study is to understand the variation in the incidence, preventive management and treatment of PAL., Methods: Data from the Dutch Lung Cancer Audit for Surgery were combined with results of an online survey among Dutch thoracic surgeons. The national incidence of PAL and case-mix corrected between-hospital variation were calculated in patients who underwent an oncological (bi)lobectomy or segmentectomy between January 2012 and December 2018. By multivariable logistic regression, factors associated with PAL were assessed. A survey was designed to assess variation in (preventive) management and analysed using descriptive statistics. Hospital-level associations between management strategies and PAL were assessed by univariable linear regression., Results: Of 12 382 included patients, 9.0% had PAL, with a between-hospital range of 2.6-19.3%. Factors associated with PAL were male sex, poor lung function, low body mass index, high American Society of Anesthesiologists (ASA) score, pulmonary comorbidity, upper lobe resection, (bi)lobectomy (vs segmentectomy), right-sided tumour and robotic-assisted thoracic surgery. Perioperative (preventive) management of PAL differed widely between hospitals. When using water seal compared to suction drainage, the average incidence of PAL decreased 2.9%., Conclusions: In the Netherlands, incidence and perioperative (preventive) management of PAL vary widely. Using water seal instead of suction drainage and increasing awareness are potential measures to reduce this variation., (© The Author(s) 2021. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery.)

Objectives: Quality assessment is an important element in providing surgical cancer care. The main objective of this study was to develop a new composite measure 'textbook outcome', to evaluate and improve quality of surgical care for patients undergoing a resection for non-small-cell lung cancer (NSCLC)., Methods: All patients undergoing an anatomical resection for NSCLC from 2012 to 2016 registered in the nationwide Dutch Lung Cancer Audit were included in an analysis to assess usefulness of a composite measure as a quality indicator. Based on expert opinion, textbook outcome was defined as having a complete resection (negative resection margins and sufficient lymph node dissection), plus no 30-day or in-hospital mortality, no reintervention in 30 days, no readmission to the intensive care unit, no prolonged hospital stay (<14 days), no hospital readmission after discharge and no major complications. The percentage of patients with a textbook outcome was calculated per hospital. Between-hospital variation in textbook outcome was analysed using case-mix adjustment models., Results: In total, 5513 patients were included in this study. Textbook outcome was achieved in 26.4% of patients. Insufficient lymph node dissection had the most substantial effect on not realizing textbook outcome. If 'sufficient lymph node dissection' was not included as a criterion, textbook outcome would be 60.7%. Case-mix adjusted textbook outcome proportions per hospitals varied between 13.2% and 37.7%., Conclusions: In contrast to focusing on a single aspect, the composite measure textbook outcome provides insight into comprehensive performance in NSCLC surgery. It can be used to evaluate both individual hospitals and national performance and provides the opportunity to give benchmarked feedback to thoracic surgeons., (© The Author(s) 2020. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery.)

Objectives: Surgical resection is widely employed as a potential curative treatment option for patients with limited lung metastases originating from a wide range of primary tumours. However, there are no clear national or international practice guidelines and, thereby, the risk for potential practice variation exists. This study aims to define the current practice for the surgical treatment of pulmonary metastases in the Netherlands by using data from the Dutch Lung Cancer Audit for Surgery (DLCA-S)., Methods: Data from the DLCA-S were used to analyse patients undergoing a parenchymal lung resection for the treatment of pulmonary metastases between 2012 and 2017. Volume of metastasectomies per hospital was calculated as a proportion of the volume of primary lung cancer resection. Studied outcomes were overall complications and postoperative mortality and complicated course. For the latter, both the national average and between-hospital variation were calculated., Results: A total of 2090 patients, distributed over 45 Dutch hospitals, were included for analysis. The most common primary cancer was colorectal carcinoma (N = 1087, 52.0%) followed by the urogenital carcinoma (N = 296, 14.2%). The most common type of parenchymal resection was a wedge resection (N = 1477, 70.7%) followed by a lobectomy (N = 424, 20.3%). Resection was performed minimally invasively in 1548 patients (74.1%) with a conversion rate of 3.8%. Resection of a solitary metastasis was performed in 1663 patients (79.6%). In 40 patients (1.9%), 4 or more metastases were resected. A postoperative complicated course was noted in 3.6%, and the 30-day mortality rate was 0.7%. The variety between hospitals in the volume of metastasectomies in proportion to the volume of primary lung cancer resections was 3.4-41.5%., Conclusions: This analysis of the DLCA-S registry provides a unique insight into current practice on pulmonary metastasectomies in the Netherlands over a 6-year period. The rate of postoperative adverse outcome was limited, and the morbidity and mortality were lower compared to primary lung cancer resections in the DLCA-S database., (© The Author(s) 2020. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.)

Background: The nationwide Dutch Lung Surgery Audit (DLSA) started in 2012 to monitor and evaluate the quality of lung operations in The Netherlands as an improvement tool. This outline describes the establishment, structure, and organization of the audit by the Dutch Society of Lung Surgeons (NVvL) and the Dutch Society of Cardiothoracic Surgeons (NVT), in collaboration with the Dutch Institute for Clinical Auditing. In addition, the first 4-year results are presented., Methods: The NVvL and NVT initiated a web-based registration, including weekly updated online feedback for participating hospitals. Data verification by external data managers is performed on regular basis. The audit is incorporated in national quality improvement programs, and participation in the DLSA is mandatory by health insurance organizations and the National Healthcare Inspectorate., Results: Between January 1, 2012, and December 31, 2015, all hospitals performing lung operations participated, and a total of 19,557 patients were registered from which almost half comprised lung cancer patients. Nationwide the guideline adherence increased over the years, and 96.5% of lung cancer patients were discussed in preoperative multidisciplinary teams. Overall postoperative complications and mortality after non-small cell lung cancer operations were 15.5% and 2.0%, respectively., Conclusions: The audit provides reliable benchmarked information for caregivers and hospital management with potential to start local, regional, or national improvement initiatives. Currently, the audit is further completed with data from nonsurgical lung cancer patients, including treatment data from pulmonary oncologists and radiation oncologists. This will ultimately provide a comprehensive overview of lung cancer treatment in The Netherlands., (Copyright © 2018 The Society of Thoracic Surgeons. Published by Elsevier Inc. All rights reserved.)

Background: In case of suspicious lymph nodes on computed tomography (CT) or fluorodeoxyglucose positron emission tomography (FDG-PET), advanced tumour size or central tumour location in patients with suspected non-small cell lung cancer (NSCLC), Dutch and European guidelines recommend mediastinal staging by endosonography (endobronchial ultrasound (EBUS) and endoscopic ultrasound (EUS)) with sampling of mediastinal lymph nodes. If biopsy results from endosonography turn out negative, additional surgical staging of the mediastinum by mediastinoscopy is advised to prevent unnecessary lung resection due to false negative endosonography findings. We hypothesize that omitting mediastinoscopy after negative endosonography in mediastinal staging of NSCLC does not result in an unacceptable percentage of unforeseen N2 disease at surgical resection. In addition, omitting mediastinoscopy comprises no extra waiting time until definite surgery, omits one extra general anaesthesia and hospital admission, and may be associated with lower morbidity and comparable survival. Therefore, this strategy may reduce health care costs and increase quality of life. The aim of this study is to compare the cost-effectiveness and cost-utility of mediastinal staging strategies including and excluding mediastinoscopy., Methods/design: This study is a multicenter parallel randomized non-inferiority trial comparing two diagnostic strategies (with or without mediastinoscopy) for mediastinal staging in 360 patients with suspected resectable NSCLC. Patients are eligible for inclusion when they underwent systematic endosonography to evaluate mediastinal lymph nodes including tissue sampling with negative endosonography results. Patients will not be eligible for inclusion when PET/CT demonstrates 'bulky N2-N3' disease or the combination of a highly suspicious as well as irresectable mediastinal lymph node. Primary outcome measure for non-inferiority is the proportion of patients with unforeseen N2 disease at surgery. Secondary outcome measures are hospitalization, morbidity, overall 2-year survival, quality of life, cost-effectiveness and cost-utility. Patients will be followed up 2 years after start of treatment., Discussion: Results of the MEDIASTrial will have immediate impact on national and international guidelines, which are accessible to public, possibly reducing mediastinoscopy as a commonly performed invasive procedure for NSCLC staging and diminishing variation in clinical practice., Trial Registration: The trial is registered at the Netherlands Trial Register on July 6th, 2017 ( NTR 6528 ).