0061: IS THERE ANY NEED FOR DRAINS TO BE LEFT LONGER FOLLOWING BREAST RECONSTRUCTION WITH TI-LOOP BRA? A. Lindsay, D. Wirth, P. Frecker, A. Said*, S. Aggarwal, Z. Ullah. Whipps Cross Hospital, Barts Health NHS Trust, London, UK. Background: Ti-Loop Bra ® mainly used as a hammock to cover the lower lateral pole of the implant for breast reconstruction. Studies have shown that the rate of post-operative seroma collection is increased when bio- logical products are used and so a drain is required to stay in situ for longer. (3) TiLoop Bra is a non-biological product, and from our experience does not create as much seroma as biological products, therefore not requiring a drain to be left in situ for a prolonged period of time. Method: We have collected data from 30 cases from March 2015 carried out at our hospital by 2 oncoplastic surgeons. We have collected data retrospectively from our data base and compared data with other products available. Result: A total of 29 reconstructions. 9 bilateral and 11 unilateral. Of these 29 reconstructions, 6 (20.6%) had seroma formation. The average length of time the drain was left in was 4 days. In total, 20 of the 29 procedures had no complications (69%). There was 1 implant loss out of 29 cases (3.4%) Conclusion: We concluded from our study that using TiLoop Bra extralight does not increase seroma formation or drain time when compared to other studies. 0104: AUDIT ON SENTINEL NODE POSITIVITY FOLLOWING DIAGNOSIS OF INCIDENTAL BREAST CANCER ON WIDE LOCAL EXCISION FOR DUCTAL CARCINOMA IN SITU O. Mahmoud*, A. Abbas, C. Roshanlall. Macclesfield District General Hospital, Macclesfield, Cheshire, UK. Aim: Our aim was to identify the incidence of invasive cancers in patients having WLE only for DCIS and find proportion of patients whom had positive nodes or recurrance. Method: A retrospective audit of patients having WLE only for DCIS (n¼154) over 5 year period (2010-2015). Pathology reports and case notes reviewed to find the incidence and management of incidental invasive disease detected on WLE. Result: All patients with DCIS were treated as per ABS guidelines including those who had a diagnosis of incidental cancer (WLE-DCIS confirmed n¼120 (78%) ;Invasive cancer, SLN performed n¼34 (22 %). Sentinel node is positive n¼2 (6%) and had further axillary treatment as per MDT. However, all pa- tients with incidental cancer < 5mm had negative sentinel nodes (41%). identify recurrence rates in those found to have incidental breast cancer. Conclusion: Audit confirms our departmental practice for DCIS manage- ment is as per the standard set by ABS. Incidental invasive disease (<5mm) diagnosed during WLE is less likely to metastasize to axilla and omitting SLN can be a safe option. Another option can be considering Oncotype Dx assay for incidental small invasive focus (ER+) and if recurrence score is low then surgery for SLN is futile. 0108: PROSPECTIVE AUDIT ON SURGICAL MANAGEMENT OF MASTEC- TOMY PATIENTS WITH AND WITHOUT A DRAIN N. Merali*, V. Pronisceva, A. Poddar. Breast Surgery Department, Queen Elizabeth Queen Mother Hospital, East Kent Hospitals University NHS Foundation Trust, UK. Primary aim was to determine optimal surgical management in mastec- tomy patients: drain versus no drain. Secondary aims were to compare patient recovery following mastectomy, pain score, seroma formation and length of hospital stay. A prospective data collection from November 2015 to June 2016 was conducted with 55 patients who underwent simple mastectomy. 37 pa- tients where included, 22 with drain and 15 patients without a drain. Decision on drain placement was made intra-operatively. Inclusion criteria consisted of single consultant operating list and Simple Mastectomy +/- SLNB. Patients were given a post-operative questionnaire with regards to their pain score. All patients were reviewed within 24hrs, followed by an outpatient clinic assessment within a week. Overall Pain score within 24 Hrs. was higher in patients ‘with a drain’ compared to ‘no drain’. 63% of patients ‘with a drain’ described their pain as moderate to severe during hospital stay compared to 30% of patients ‘without drain’. The length of stay in hospital was shorter in patients without a drain. On clinic review seroma drainage was more common in patients with drainage. Our study has shown that patients without a drain had less pain, shorter length of stay in hospital and reduced seroma formation. 0174: SHOULD WE TAKE A MINIMUM OF THREE SENTINEL LYMPH NODES? H.K.S.I. Singh* 1 , S. Randhawa 2 , C. Bonner 3 , S. Syal 4 , A. Pittathankal 2 . 1 Princess Alexandra Hospital, Harlow, UK; 2 King George Hospital, Goodmayes, UK; 3 Broomfield Hospital, Chelmsford, UK; 4 Southend University Hospital, Essex, UK. Aim: In 2015 the Association of Breast Surgery (ABS), proposed that axil- lary clearance (ANC) would not be required in patients with macro- metastases in 1-2 nodes at sentinel lymph node biopsy (SLNB) due to receive breast conservation therapy with whole breast radiation and that are post-menopausal, with T1, grade 1/2, ER positive and HER2 negative tumours. The primary aim was to determine if our practice at King George Hospital (KGH) was compliant with the new consensus. Method: Female patients with SLNB at their initial operation from April 2015 to 2016 were included. Data including demographics, treatment, number of nodes and tumour pathology was collected and analysed. Result: 363 females had SLNB. 16% (58/363 patients) would not need further ANC. However, 15% (9/58 patients) did proceed unnecessarily to ANC. In 77.8% (7/9 patients), decision-making challenges regarding further ANC resulted when only 1-2 nodes were taken at SLNB. At ANC, only 11.1% (1/9 patients) had a further positive node. Conclusion: Practice at KGH is changing to now take a minimum of 3 nodes at SNLB and to not proceed to ANC when unnecessary. Additionally, we aim to review the number of positive nodes at ANC in those with an intermediate risk of recurrence. 0272: AXILLARY LYMPH NODE DISSECTION IN SENTINEL NODE POSI- TIVE PATIENTS UNDERGOING MASTECTOMY: CAN E AVOID IT? M.F. Shah* 1 , I.S. Ali 2 , M.T. Pirzada 1 , I. ul islam Nasir 1 , H.M. Khan 1 , A.W. Anwer 1 . 1 Shaukat Khanum Memorial Cancer Hospital and Research Centre, Lahore, Pakistan; 2 Lady Reading Hospital, Peshawar, Pakistan. Aim: To see whether in sentinel LN positive patients undergoing mastec- tomy and ALND the status of non-sentinel lymph nodes has any effect on the 5 year disease free survival and overall survival. Method: A retrospective review of database from January 2009 till December 2013 was accomplished. Patients (111) who had positive sentinel node(s) on frozen section examination were enrolled. ALND specimens with less than 9 lymph nodes were excluded. Patients were categorized into Groups A and B the basis of whether they were ALND positive or negative respectively. Statistical analysis was performed on SPSS 21. Result: The 5-year OS of group A and group B was 93% and 97.8% respec- tively. There was no statistically significant difference observed in OS be- tween the group in the log-rank test (p¼0.228). The 5-year DFS of ALND+ and ALND- groups was 74.4% and 91.1% respectively, the difference was statistically significant in the log-rank test (p¼0.031). Conclusion: With the development of non-invasive prognostic indicators, axillary lymph node dissection as a prognostic indicator can be avoided if adequate sampling has been done in SLNB to avoid procedure related complications. 0302: AUDIT OF RE-OPERATIVE INTERVENTION FOR POSTOPERATIVE BREAST HAEMATOMA IN A DISTRICT GENERAL HOSPITAL O.S. Olayinka*, J. Dicks, S. Ghosh, H. Adwan. Brantley Hospital NHS Foundation Trust, Barnsley, South Yorkshire, UK. Abstracts / International Journal of Surgery 47 (2017) S15eS108 S17