Annelotte van Bommel

125 Information provision of immediate breast reconstruction Shared decision-making for patients who had received IBR versus no IBR Patients with IBR compared to patients without IBRweremore often preoperatively informed about the opportunity for IBR (99% vs 75%; p<0.001), were just as often informed about DBR (77% vs 73%; p=0.534), and they were less often informed about the possibility of an external breast prosthesis to conceal the missing breast when dressed (64% vs 81%; p<0.001). Of all patients who had received preoperative information about IBR, 86% of the patients with IBR versus 68% of the patients without IBR had discussed the advantages and disadvantages of IBR with their physician (p<0.001). Moreover, patients with IBR more often reported that the information about breast reconstruction had been comprehensible (p<0.001) and they felt more often than patients without IBR they had had the opportunity to ask questions about breast reconstruction issues (p<0.001). More patients with IBR (91%) than patients without IBR (67%) felt they had shared the decision-making with their physicians (p<0.001; Table 2 ). Most patients reported they had chosen their treatment based on their preferences (IBR: 53%, without IBR 68%) or their physician had recommended the received treatment (IBR: 41%, without IBR: 10%; Figure 1 ). For both patients with IBR and without IBR, 41% of patients who had been treated with radiotherapy had received a preoperative consultation with a radiation oncologist. Furthermore, for patients who were treated with radiotherapy and had received information about IBR, 63% of patients with IBR and 51% without IBR had been informed about the effects of radiotherapy on breast reconstruction (p=0.082, Table 2 ). 7