Impact of HA-PCI on self-reported cognitive functioning and brain metastases in small-cell lung cancer: Pooled findings of NCT01780675 and PREMER trials.

Background: Cognitive decline is an arising concern in patients who need cranial irradiation. We used the pooled longitudinal individual patient data of two phase III trials: NCT01780675 and PREMER to investigate whether hippocampal avoidance (HA)-PCI is associated with improved self-reported cognitive functioning (SRCF) compared with PCI without increasing brain metastases (BM) development within the HA area.

Methods: Patients with stage I-IV small cell lung cancer (SCLC) were randomized to PCI or HA-PCI.

A taskforce for national improvement of innovation implementation in radiotherapy.

Background And Purpose: Previous research among Dutch radiotherapy centres (RTCs) showed that 69% of innovations was simultaneously implemented in 7/19 centres, with a success rate of 51%. However, no structure to share lessons learned about the implementation process existed. Therefore, a national Taskforce Implementation (TTI) was raised to stimulate efficient implementation of innovations.

The Dutch Lung Cancer Audit-Radiotherapy (DLCA-R): Real-World Data on Stage III Non-Small Cell Lung Cancer Patients Treated With Curative Chemoradiation.

Introduction: Chemoradiotherapy (CRT) is the standard of care in inoperable non-small-cell lung cancer (NSCLC) patients, favoring concurrent (cCRT) over sequential CRT (seqCRT), with adjuvant immunotherapy in responders. Elderly and frail NSCLC patients have generally been excluded from trials in the past. In elderly patients however, the higher treatment related morbidity of cCRT, may outweigh the possible lower tumor control of seqCRT.

Trends and variations in the treatment of stage I-III small cell lung cancer from 2008 to 2019: A nationwide population-based study from the Netherlands.

Objectives: Recent treatment patterns for small cell lung cancer (SCLC) in the Netherlands were unknown. This nationwide population-based study describes trends and variations in the treatment of stage I-III SCLC in the Netherlands over the period 2008-2019.

Materials And Methods: Patients were selected from the population-based Netherlands Cancer Registry.

Trends and variations in treatment of stage I-III non-small cell lung cancer from 2008 to 2018: A nationwide population-based study from the Netherlands.

Introduction: This Dutch population-based study describes nationwide treatment patterns and its variations for stage I-III non-small cell lung cancer (NSCLC).

Materials And Methods: Patients diagnosed with clinical stage I-III NSCLC in the period 2008-2018 were selected from the Netherlands Cancer Registry. Treatment trends were studied over time and age groups.

Phase 3 Randomized Trial of Prophylactic Cranial Irradiation With or Without Hippocampus Avoidance in SCLC (NCT01780675).

Introduction: To compare neurocognitive functioning in patients with SCLC who received prophylactic cranial irradiation (PCI) with or without hippocampus avoidance (HA).

Methods: In a multicenter, randomized phase 3 trial (NCT01780675), patients with SCLC were randomized to standard PCI or HA-PCI of 25 Gy in 10 fractions. Neuropsychological tests were performed at baseline and 4, 8, 12, 18, and 24 months after PCI.

Video-assisted thoracic lobectomy stereotactic body radiotherapy for stage I nonsmall cell lung cancer in elderly patients: a propensity matched comparative analysis.

Comparative studies of the overall survival (OS) in elderly patients with nonsmall cell lung cancer (NSCLC) after surgery or stereotactic body radiotherapy (SBRT) have been limited by mixed extents of resection and different surgical approaches.792 patients aged ≥65 years with clinical stage I NSCLC underwent video-assisted thoracic surgery (VATS) lobectomy or SBRT between 2010 and 2015. The propensity score-matched primary analysis included data from the full cohort; the secondary analysis included data from a subgroup of patients with data on pulmonary function.

Impact of brachytherapy technique (2D versus 3D) on outcome following radiotherapy of cervical cancer.

Purpose: The purpose of this study was to analyze the effect of 2D conventional brachytherapy (CBT) compared to 3D MRI-guided brachytherapy (IGBT) with and without the use of interstitial needles on local control, overall survival, and toxicity in patients treated for cervical cancer with radiation or chemoradiation.

Material And Methods: A retrospective analysis was performed of biopsy-proven FIGO IB-IVA cervical cancer patients, treated with primary radiation or chemoradiation, followed by brachytherapy (BT) between January 1997 and July 2016. Endpoints were local control, overall survival, and toxicity.

Interobserver variability in the delineation of the primary lung cancer and lymph nodes on different four-dimensional computed tomography reconstructions.

Purpose: The study compared interobserver variation in the delineation of the primary tumour (GTVp) and lymph nodes (GTVln) between three different 4DCT reconstruction types; Maximum Intensity Projection (MIP), Mid-Ventilation (Mid-V) and Mid-Position (Mid-P).

Material And Methods: Seven radiation oncologists delineated the GTVp and GTVln on the MIP, Mid-V and Mid-P 4DCT image reconstructions of 10 lung cancer patients. The volumes, the mean standard deviation (SD) and distribution of SD (SD/area) over the median surface contour were compared for different tumour regions.

Patient reported outcomes following stereotactic ablative radiotherapy or surgery for stage IA non-small-cell lung cancer: Results from the ROSEL multicenter randomized trial.

We report quality of life and indirect costs from patient reported outcomes from the ROSEL randomized control trial comparing stereotactic ablative radiotherapy (SABR, also known as stereotactic body radiotherapy or SBRT) versus surgical resection for medically operable stage IA non-small cell lung cancer. ROSEL closed prematurely after accruing and randomizing 22 patients. This exploratory analysis found the global health related quality of life and indirect costs to be significantly favorable and cheaper, with SABR.

Stereotactic ablative radiotherapy versus lobectomy for operable stage I non-small-cell lung cancer: a pooled analysis of two randomised trials.

Background: The standard of care for operable, stage I, non-small-cell lung cancer (NSCLC) is lobectomy with mediastinal lymph node dissection or sampling. Stereotactic ablative radiotherapy (SABR) for inoperable stage I NSCLC has shown promising results, but two independent, randomised, phase 3 trials of SABR in patients with operable stage I NSCLC (STARS and ROSEL) closed early due to slow accrual. We aimed to assess overall survival for SABR versus surgery by pooling data from these trials.

Patient selection for whole brain radiotherapy (WBRT) in a large lung cancer cohort: Impact of a new Dutch guideline on brain metastases.

Background: Median survival after diagnosis of brain metastases is, depending on the Recursive Partitioning Analysis (RPA) classes, 7.1 (class I) to 2.3 months (class III).

Dose painting by contours versus dose painting by numbers for stage II/III lung cancer: practical implications of using a broad or sharp brush.

Purpose: Local recurrence rates are high in patients with locally advanced NSCLC treated with 60 to 66 Gy in 2 Gy fractions. It is hypothesised that boosting volumes with high SUV on the pre-treatment FDG-PET scan potentially increases local control while maintaining acceptable toxicity levels. We compared two approaches: threshold-based dose painting by contours (DPBC) with voxel-based dose painting by numbers (DPBN).

Outcomes of stereotactic radiotherapy for a new clinical stage I lung cancer arising postpneumonectomy.

Background: Resection of second primary lung tumors that arise after previous pneumonectomy is associated with a high risk of complications. In this study, the authors reviewed outcomes after stereotactic radiation therapy (SRT) for such patients.

Methods: SRT was undergone by 15 patients who developed a new clinical stage I lung cancer at a median of 8.

Evaluation of a single-isocenter technique for axillary radiotherapy in breast cancer.

The aim of this study was to develop a technique for axillary radiotherapy that minimizes the risk of radiation-induced damage to the surrounding normal tissue (i.e., arm, shoulder, lung, esophagus, and spinal cord) while keeping the risk of a nodal recurrence to a minimum.

Final results of a Phase I/II dose escalation trial in non-small-cell lung cancer using three-dimensional conformal radiotherapy.

Purpose: The aim of this study was to determine the maximum tolerated dose (MTD) delivered within 6 weeks in patients with non-small-cell lung cancer (NSCLC). The impact of tumor volume and delivered dose on failure-free interval (FFI) and overall survival (OS) were also studied.

Methods And Materials: A Phase I/II trial was performed including inoperable NSCLC patients.

Observer variation in target volume delineation of lung cancer related to radiation oncologist-computer interaction: a 'Big Brother' evaluation.

Background And Purpose: To evaluate the process of target volume delineation in lung cancer for optimization of imaging, delineation protocol and delineation software.

Patients And Methods: Eleven radiation oncologists (observers) from five different institutions delineated the Gross Tumor Volume (GTV) including positive lymph nodes of 22 lung cancer patients (stages I-IIIB) on CT only. All radiation oncologist-computer interactions were recorded with a tool called 'Big Brother'.

Reduction of observer variation using matched CT-PET for lung cancer delineation: a three-dimensional analysis.

Purpose: Target delineation using only CT information introduces large geometric uncertainties in radiotherapy for lung cancer. Therefore, a reduction of the delineation variability is needed. The impact of including a matched CT scan with 2-[18F]fluoro-2-deoxy-D-glucose positron emission tomography (FDG-PET) and adaptation of the delineation protocol and software on target delineation in lung cancer was evaluated in an extensive multi-institutional setting and compared with the delineations using CT only.

Standardised FDG uptake: a prognostic factor for inoperable non-small cell lung cancer.

The aim of this study was to investigate the relationship between standardised uptake value (SUV) obtained from [(18)F]fluorodeoxyglucose positron emission tomography (FDG PET) and treatment response/survival of inoperable non-small cell lung cancer (NSCLC) patients treated with high dose radiotherapy. Fifty-one patients were included recording stage, performance, weight loss, tumour volume, histology, lymph node involvement, SUV, and delivered radiation dose. The maximum SUV (SUV(max)) within the primary tumour was a sensitive and specific factor for predicting treatment response.

Pulmonary function changes after radiotherapy in non-small-cell lung cancer patients with long-term disease-free survival.

Purpose: To evaluate the changes in pulmonary function after high-dose radiotherapy (RT) for non-small-cell lung cancer in patients with a long-term disease-free survival.

Methods And Materials: Pulmonary function was measured in 34 patients with inoperable non-small-cell lung cancer before RT and at 3 and 18 months of follow-up. Thirteen of these patients had a pulmonary function test (PFT) 36 months after RT.