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

KCE Reports 81 PROCARE – phase 2 133Figure 42. Algorithm for QI 1233 (prospective database).All patientsN=1071Surgery?SurgeryN=1058Patients with SSOsurgeryN=734Major leakageof the anastomosisN=334,56%Leakage of theanastomosis?SSO surgery?Minor leakageof the anastomosisN=22No surgeryN=13No SSO surgeryN=216No leakageof the anastomosisN=669SSO surgery=MISSINGN=108Leakage of theanastomosis:MISSINGN=10INPATIENT OR 30-DAY MORTALITY (FIGURE 43 AND FIGURE 44)Mortality data are collected from the mortality database of the sickness funds, and areavailable until December 31 st 2006. Coupling with the PROCARE database is done usingthe social security number. Therefore, an accurate follow-up is only available forpatients with a known social security number and Belgian postal code. Since data areavailable until December 31 st 2006, the analysis of the 30-day mortality can only be donefor patients with a surgery date before December 2 nd 2006.Inpatient mortality is calculated using the same time frame. When the date of deathoccurs at the date of discharge (variable ‘SPO_V216’ in PROCARE database), death isconsidered inpatient. In theory, the QI can be underestimated, since some patientshaving had surgery before December 2 nd 2006 could have died in hospital afterDecember 31 st 2006. However, this was manually checked and didn’t occur.