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Twee publicaties in het European Journal of Surgical Oncology

Het European Journal of Surgical Oncology heeft vorige week 2 artikelen geplaatst waarin data uit de DUCA en de DLCA-S (voorheen DLSA) gebruikt zijn. 

DUCA:
Hospital variation and the impact of postoperative complications on the use of perioperative chemo(radio)therapy in resectable gastric cancer. Results from the Dutch Upper GI Cancer Audit
M.G. Schouwenburg, L.A.D. Busweiler, N. Beck, D. Henneman, S. Amodio, M.I. van Berge Henegouwen, A. Cats, R. van Hillegersberg, J.W. van Sandick, B.P.L. Wijnhoven, M.W.J. Wouters, G.A.P. Nieuwenhuijzen on behalf of the Dutch Upper GI Cancer Audit group

DLCA-S:
The Dutch national clinical audit for lung cancer: a tool to improve clinical practice? An analysis of unforeseen ipsilateral mediastinal lymph node involvement in the Dutch Lung Surgery Audit (DLSA)
David Jonathan Heineman, Naomi Beck, Michael Wilhelmus Wouters, Thomas Jan van Brakel, Johannes Marlene Daniels, Wilhelmina Hendrika Schreurs, Chris Dickhoff

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Samenvatting DUCA:

Hospital variation and the impact of postoperative complications on the use of perioperative chemo(radio)therapy in resectable gastric cancer. Results from the Dutch Upper GI Cancer Audit

Background
Dutch national guidelines on the diagnosis and treatment of gastric cancer recommend the use of perioperative chemotherapy in patients with resectable gastric cancer. However, adjuvant chemotherapy is often not administered. The aim of this study was to to evaluate hospital variation on the probability to receive adjuvant chemotherapy and to identify associated factors with special attention to postoperative complications.

Methods
All patients who received neoadjuvant chemotherapy and underwent an elective surgical resection for stage IB-IVa (M0) gastric adenocarcinoma between 2011 and 2015 were identified from a national database (Dutch Upper GI Cancer Audit). A multivariable linear mixed model was used to evaluate case-mix adjusted hospital variation and to identify factors associated with adjuvant therapy.

Results
Of all surgically treated gastric cancer patients who received neoadjuvant chemotherapy (n=882), 68% received adjuvant chemo(radio)therapy. After adjusting for case-mix and random variation, a large hospital variation in the administration rates for adjuvant chemo(radio)therapy was observed (OR range 0.31 - 7.1). In multivariable analysis, weight loss, a poor health status and failure of neoadjuvant chemotherapy completion were strongly associated with an increased likelihood of adjuvant therapy omission. Patients with severe postoperative complications had a threefold increased likelihood of adjuvant therapy omission (OR 3.07 95% CI 2.04 – 4.65).

Conclusion
Despite national guidelines, considerable hospital variation was observed in the probability of receiving adjuvant chemo(radio)therapy. Postoperative complications were strongly associated with adjuvant chemo(radio)therapy omission, underlining the need to further reduce perioperative morbidity in gastric cancer surgery.

Lees het volledige artikel hier.

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Samenvatting DLCA-S:

The Dutch national clinical audit for lung cancer: a tool to improve clinical practice? An analysis of unforeseen ipsilateral mediastinal lymph node involvement in the Dutch Lung Surgery Audit (DLSA)

Objective
Optimal treatment selection for patients with non-small cell lung cancer (NSCLC) depends on the clinical stage of the disease. Particularly patients with mediastinal lymph node involvement (stage IIIA-N2) should be identified since they generally do not benefit from upfront surgery. Although the standardized preoperative use of PET-CT, EUS/EBUS and/or mediastinoscopy identifies most patients with mediastinal lymph node metastasis, a proportion of these patients is only diagnosed after surgery. The objective of this study was to identify all patients with unforeseen N2 disease after surgical resection for NSCLC in a large nationwide database and to evaluate the preoperative clinical staging process.

Methods
Data was derived from the Dutch Lung Surgery Audit. Patients with pathological stage IIIA NSCLC after an anatomical resection between 2013 and 2015 were evaluated. Clinical and pathological TNM-stage were compared and an analysis was performed on the diagnostic work-up of patients with unforeseen N2 disease.

Results
From 3585 patients undergoing surgery for NSCLC between 2013 and 2015, a total of 527 patients with pathological stage IIIA NSCLC were included. Of all 527 patients, 254 patients were upstaged from a clinical N0 (n=186) or N1 (n=68) disease to a pathological N2 disease (7.1% unforeseen N2). In these 254 patients, 18 endoscopic ultrasounds, 62 endobronchial ultrasounds and 67 mediastinoscopies were performed preoperatively.

Conclusions
In real world clinical practice in The Netherlands, the percentage of unforeseen N2 disease in patients undergoing surgery for NSCLC is seven percent. To further reduce this percentage, optimization of the standardized preoperative workup is necessary.

Lees het volledige artikel hier.