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

122 PROCARE – phase 2 KCE reports 81PROPORTION OF CSTAGE II-III PATIENTS THAT RECEIVED ALONG COURSE OF NEOADJUVANT PELVIC RT(the same algorithm is used as the previous QI)Measurement in prospective PROCARE database (Figure 33)As for the previous QI, stage II and III RC patients are selected using the variables‘SPR_V147’ and ‘PT_V106’ for the cStage. In this group of patients, those receivingsurgery are selected using variable ‘AD_V111’. Within this group of patients, patientsreceiving preoperative radiotherapy are again selected using variable ‘RD_V101’.Patients receiving a long course of radiotherapy (i.e. at least 25 fractions of 1.8 Gy) areselected using variables ‘RD_V106’ (number of fractions) and ‘RD_V109’ (total dose).Measurement in coupled administrative databaseAgain, in the nomenclature, codes are available for radiotherapy (Table 70). However, itis not possible to identify the exact number of fractions and radiation dose with thesecodes. Therefore, the identification of a long course of RT is impossible. The sameapplies to the ICD-9-CM codes (Table 71).PROPORTION OF STAGE II-III PATIENTS THAT RECEIVEDNEOADJUVANT CHEMORADIATION WITH A REGIMENCONTAINING 5-FUMeasurement in prospective PROCARE database (Figure 34)cStage II and III RC patients receiving surgery are selected in the same way as the twoprevious QI. When neoadjuvant CRT is provided (patients receiving neoadjuvantradiotherapy or chemotherapy as monotherapy are excluded), the variable ‘CH_V101’is checked in the chemotherapy section of the data entry form. When the neoadjuvantchemotherapy regimen contained 5-FU, this is registered in variables ‘CH_V109’ and‘CH_V110’ or in variables ‘CH_V119’ and ‘CH_V120’.Measurement in coupled administrative database (Figure 35)Patients with rectal cancer cStage II-III are selected from the BCR database. Thosepatients receiving surgery are selected using the nomenclature codes forabdominoperineal resection, Hartmann’s procedure and sphincter-sparing surgery(Table 64). The identified ICD-9-CM codes were not used for this selection (Table 66).Within the group of cStage II-III patients undergoing surgery, those receivingneoadjuvant chemoradiotherapy are selected using the nomenclature codes forradiotherapy (Table 70) and the ATC codes for chemotherapy (Table 72), but only ifthe date of chemoradiotherapy falls within the interval between the incidence date andsurgery date. The ATC codes for 5-fluorouracil are used to calculate the denominator(Table 72).