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Assurance de qualité pour le cancer rectal – phase 2 ...

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KCE Reports 81 PROCARE <strong>–</strong> <strong>phase</strong> 2 39Tab<strong>le</strong> 26. Number of patients that received a short or long course ofneoadjuvant pelvic radio(chemo)therapy, measured with prospectivePROCARE data.cStageI II III X II-IIIPatients with <strong>rectal</strong> <strong>cancer</strong> 107 160 357 335 517Patients with <strong>rectal</strong> <strong>cancer</strong> that un<strong>de</strong>rwent surgery 107 160 356 330 516Patients with a short course (numerator QI 1221) 2 7 19 17 26 (6%)Patients with a long course (numerator QI 1222) 7 42 178 104 220 (52%)Patients with other course 5 13 43 23 56No neoadjuvant radiotherapy 88 57 62 153 119Patients with neoadjuvant radiotherapy unknown or regimen 5 41 54 33 95unknown (missing data) **The <strong>de</strong>nominator is calculated by subtracting the missing data from the proportion of patientsthat un<strong>de</strong>rwent surgery (see appendix for algorithm).Proportion of cStage II-III patients that received a long course ofneoadjuvant pelvic RTDEFINITIONNumerator: all patients with cStage II or III RC that un<strong>de</strong>rwent surgery and that receiveda long course of neoadjuvant pelvic RT (with or without chemotherapy).Denominator: all patients with cStage II or III RC that un<strong>de</strong>rwent surgery.Exclusion:• patients with cStage other than II and III• cStage II and III patients not treated with surgeryRESULTSSee previous QI.Proportion of cStage II-III patients that received neo-adjuvantchemoradiation with a regimen containing 5-FUDEFINITIONNumerator: all patients with cStage II or III RC that un<strong>de</strong>rwent surgery and that receivedneoadjuvant CRT with a regimen containing 5-FU.Denominator: all patients with cStage II or III RC that un<strong>de</strong>rwent surgery and thatreceived neoadjuvant CRT.Exclusion:• patients with cStage other than II and III• cStage II and III patients not treated with surgery• cStage II and III patients receiving neoadjuvant radiotherapy orchemotherapy as a monotherapyRESULTSIn the prospective cohort 95% (95%CI 90 <strong>–</strong> 100%) of the cStage II-III patients thatun<strong>de</strong>rwent surgery and received neoadjuvant chemoradiotherapy, received achemotherapy regimen with 5-FU (Tab<strong>le</strong> 27). However, a high number of missing datawas i<strong>de</strong>ntified, which is due to the comp<strong>le</strong>te absence of a specific chemotherapy form inthe first data entry version and the comp<strong>le</strong>x data entry form for chemotherapy atpresent. For 335 patients the cStage was unknown. For 18 of the 516 patientsun<strong>de</strong>rgoing surgery, no information was availab<strong>le</strong> on neoadjuvant treatment. Above this,for 227 of the 290 patients receiving neoadjuvant chemoradiation, no information wasavailab<strong>le</strong> on the administered regimen (total missings: 580/1017, 54%).

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