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P1.01 - Poster Session/ Treatment of Advanced Diseases – NSCLC (ID 206)
- Event: WCLC 2015
- Type: Poster
- Track: Treatment of Advanced Diseases - NSCLC
- Presentations: 1
- Coordinates: 9/07/2015, 09:30 - 17:00, Exhibit Hall (Hall B+C)
P1.01-029 - Dutch Radiotherapy Lung Audit: Results of 2014 (ID 1340)
09:30 - 17:00 | Author(s): J. Peer-Valstar
The Dutch Radiotherapy Lung Audit (DLRA) is an outcome registration that provides the local health professionals with an instrument to compare and improve their lung cancer treatments. It ensures transparency regarding clinical outcome, quality and safety of lung cancer treatments in the radiotherapy departments throughout the Netherlands. Patients receiving thoracic radiation treatment with curative intent for (primary or recurrent) stage I-IIIB Non-Small Cell Lung Cancer (NSCLC) were included in the registry. The results of the DLRA on the first fully registered year, 2014, are reported.
Information collected included patient, tumor and treatment characteristics, the incidence and severity of acute toxicity, mortality within three months after radical radiation treatment and the time interval between diagnostic work-up and start of the radiotherapy. The adherence to the waiting time (time between referral and start of the irradiation) and throughput time (time between planning CT scan and start of the irradiation) guidelines were registered and analyzed, as well as the use of modern treatment techniques such as stereotactic irradiation and image-guided radiotherapy.
14 out of 21 radiotherapy institutes included patients in the DLRA database. A total of 1350 patients were entered from January-December 2014. Patients were treated with concurrent (32%) or sequential chemoradiation(20%), radiotherapy only (13%) or stereotactic ablative body radiotherapy (SABR [35%]). On a patient record level, there was a high level of completeness. The mean age was 69 years (range 32-91, 59% males). Charlson comorbidity index ≥ 2 was present in 42% of patients. Most patients (45%) were cN+ with 20% cT4 tumors. Fifty eight percent of all patients started irradiation within 21 days after referral (range 0-89%). For 68% of the patients SABR started within 10 days after the planning-CT scan was acquired (range 17-100%) (fig 1). There was no correlation between the number of patients treated and the throughput times. Most patients received IMRT or VMAT irradiation. All registered patients had position verification during irradiation, mostly 3D (94%). Three-month (calculated from the end of RT) acute esophagus toxicity (grade≥ III) and pneumonitis (grade≥ II) of concurrent treatment were 12.4% and 3.9%, 6.1% and 4.1% for sequential chemoradiation, 3.3% and 4.3% for radiotherapy only, and 0.4% and 2.3% for SABR, respectively. Three-month mortality rates were 8.2%, 8.5%, 9.6%, and 1.7%, respectively. Figure 1
The Dutch Radiotherapy Lung Audit on outcomes after (chemo)radiotherapy is directed towards an improvement of care for lung cancer patients. There's room for improvement in the waiting and throughput times.
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