#9 An in-depth analysis and cohort study of the techniques used to repair complex incisional hernias after abdominal surgery (oral presentation)
Rationale: Incisional hernias develop in approximately 15% of patients following midline incisions for abdominal surgery. Midline fascial reconstruction with mesh reinforcement is the recommended technique, but often requires separation of the abdominal wall layers (component separation). Anterior component separation has been used, but recently posterior component separation (PCS) has been introduced to improve outcomes. However, the PCS technique is still developing and has not been widely implemented. (Source: International Journal of Surgery)
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: S. Pathak, N. Smart, J. Rees, J.M. Blazeby, D. Messenger Source Type: research

#10 Portuguese Inguinal Hernia Cohort Study (oral presentation)
Rationale: Inguinal hernia repair with mesh has been documented to be associated with chronic pain in a minority of patients. However, the individual prediction of the development of chronic pain is still not possible and different countries expressed differences in the incidence of this complication. The factors leading to these differences have still not been identified. (Source: International Journal of Surgery)
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: Portuguese Surgical Research Collaborative:, A.S. Soares, A.A. Jo ão, J. Simões, M. Peyroteo, J.M. Azevedo Source Type: research

#11 The Pre-Bra Study (oral presentation)
Rationale: Implant-based breast reconstruction (IBBR) is the most commonly performed reconstructive technique worldwide. Pre-pectoral reconstruction in which the implant, wrapped in mesh, is placed on top of the muscle is the latest innovation but subcutaneous IBBR was previously abandoned due to high complication rates. (Source: International Journal of Surgery)
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: K. Harvey, S. Potter, N. Mills, C. Holcombe Source Type: research

#12 Proposed randomised controlled feasibility trial of a novel polyvinylideneflouride (PVDF) mesh (Dynamesh ®-HIATUS) cruroplasty versus suture-only repair of large hiatus hernia: the DYNAMIC Study (oral presentation)
Background: Gastro-oesophageal reflux disease (GORD) is a significant health problem affecting up to 25% of adults. Keyhole surgical treatment of chronic GORD has become an alternative to medical treatment over the past 20 years. However, patients with large hiatus hernias more than 5cm in size appear to have poorer results with recurrence in up to half of the patients. The use of mesh reinforcement has been considered to improve this, as this has been efficacious in other hernia repairs. However, with hiatal hernia repair there have been concerns about risks of mesh erosion and infection, and results to date have been equ...
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: S. Toh, B. Knight, C. Fogg, E. Baddesley, A. Higginson, R. Beable, S. Babu, E. Hawes, M. Moon, J. Shoebridge, P. Meredith, M. Amos-Lyons, P. May-Miller Source Type: research

#13 A systematic review to assess the reporting of surgical innovation: a case study of the Subdural Evacuating Port System (SEPS) (poster presentation)
Background: The evaluation and reporting of innovations in surgery are often to a poor standard. In response to this, the IDEAL framework (Idea, Development, Exploration, Assessment, Long-term follow-up) was developed, aiming to improve the developmental process and outcome reporting of surgical innovations. The Subdural Evacuating Port System (SEPS) is a new approach for the evacuation of chronic and subacute haematomas. A novel variant of the twist-drill craniotomy, the SEPS poses several advantages to current management options, including a reduced pneumocephalus risk and the need for only local anaesthesia. (Source: In...
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: A.T. Storrar, B.G. Main, J.M. Blazeby, A. Kolias, N.S. Blencowe Source Type: research

#14 Integrating inter-surgeon variability and learning effects into the interpretation of a surgical RCT (poster presentation)
Background: Inter-surgeon variability and learning effects are a threat to the generalizability of the results of surgical randomised controlled trials (RCTs). (Source: International Journal of Surgery)
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: W. Vach, F. Saxer Source Type: research

#15 Applying the IDEAL framework to a methodological complex intervention (PIRRIST) (poster presentation)
Rationale: Patient and public involvement (PPI) in surgical trials is widely conducted but under-evaluated. PIRRIST is an evidence-based PPI intervention which aims to improve recruitment and retention in surgical trials. (Source: International Journal of Surgery)
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: J. Crocker, N. Farrar, S. Treweek, S. Petit-Zeman, A. Chant, J. Bostock, K. Woolfall, Locock, S. Rees, R. Bulbulia Source Type: research

#16 The introduction and evolution of an innovative endovascular device for venous arterialisation: A systematic analysis of current practice (poster presentation)
This study is an in-depth analysis of methods used to introduce and modify venous arterialisation and a CE marked endovascular device, LimFlow (Paris, France). (Source: International Journal of Surgery)
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: R.L. Morley, M. Edmondson, G. Dovell, N.S. Blencowe, B.G. Main, J.M. Blazeby, R. Hinchliffe Source Type: research

#17 Introducing and reporting surgical innovation: a case study in magnetic sphincter augmentation (MSA) of the lower oesophagus (poster presentation)
Background: Magnetic sphincter augmentation (MSA) is reported to be an innovative alternative to anti-reflux surgery. The evidence behind this is, however, uncertain and little is known about its safety and long-term outcomes. (Source: International Journal of Surgery)
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: E.N. Kirkham, B.G. Main, J.M. Blazeby, N.S. Blencowe Source Type: research

#18 Treatment of Hidradenitis Suppurativa Evaluation Study (THESEUS) (poster presentation)
Background: Hidradenitis suppurativa (HS) is a common, painful skin disease characterised by recurrent boils, which affects young people ’s quality of life, relationships and economic productivity, and poses significant health service costs. Treatments range from topical agents, through to major surgery to remove the apocrine sweat glands of axillae and groins, with poorly defined roles for different treatments, and probably undesi rable variation in practice. Additionally, a simpler procedure to deroof disease areas, developed in continental Europe, may have advantages over these but appears to not be used in the UK. (S...
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: J. Ingram, K. Thomas, T. Burton, J. Rodrigues, R. Howes, K. Hood, E. Thomas-Jones, R. Cannings-John, F. Collier, P. Tappenden, P. Leighton Source Type: research

#19 Patient experiences of pain relief following major lower limb amputation in the PLACEMENT randomised study (poster presentation)
Background: The PLACEMENT study explored perineural catheter usage for postoperative pain relief in amputees. A perineural catheter is a thin plastic tube placed adjacent to a major nerve at the time of amputation, through which a local anaesthetic infusion can be given. Qualitative interviews with study participants enabled detailed exploration of patient experiences of pain relief. (Source: International Journal of Surgery)
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: S. Milosevic, H. Strange, L. Brookes-Howell, G.K. Ambler, C.-A. Waldron, E. Thomas-Jones, D.C. Bosanquet, C.P. Twine Source Type: research

#20 Design and rationale of the PIlonidal sinus Treatment - STudying the OPtions (PITSTOP) study: a multicentre cohort, nested mixed-methods case study and discrete choice experiment (poster presentation)
Background: Pilonidal Sinus (PS) involves rupture of hair follicles in the natal cleft, leading to abscess and sinus formation. There is uncertainty regarding classification, front-running interventions and clinical equipoise, as well as which outcome measures are both relevant to patients and sensitive to change. (Source: International Journal of Surgery)
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: E. Beal, D. Hind, M. Bradburn, E. Lee, A. Howard, P. Shackley, M. Lee, S. Brown Source Type: research

#21 Handling of informed consent and inclusion in research on geriatric trauma patients: a matter of protection or disrespect? (poster presentation)
Background: Despite the aging of numerous societies, clinical research in the elderly is under-represented. Restrictive handling of informed consent (IC) and inclusion criteria can exclude relevant subpopulations from research. (Source: International Journal of Surgery)
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: J.S. Jensen, W. Vach, S. Reiter-Theil, D. Celio, M. Jakob, F. Saxer Source Type: research

#22 Postoperative coffee consumption for accelerated resolution of ileus following abdominal surgery: a systematic review and meta-analysis of randomised controlled trials (poster presentation)
Background: Ileus following abdominal surgery is a common post-operative complication. It is a source of considerable morbidity to patients and prolongs hospital stay. Despite its ready availability, there is limited evidence to support the use of coffee to promote resolution of post-operative ileus. (Source: International Journal of Surgery)
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: H. Cornwall, B. Edwards, J.F. Curran, S. Boyce Source Type: research

#23 The role of multiparametric Magnetic Resonance Imaging (mpMRI) for different follow-up schemes in active surveillance of men with low-risk prostate cancer in the US: a cost-effectiveness modelling study (poster presentation)
Background: Active surveillance (AS) programs in the US vary widely across institutions and guidelines, particularly the recommended time interval between biopsies varies from 1 to 3 years. (Source: International Journal of Surgery)
Source: International Journal of Surgery - November 1, 2018 Category: Surgery Authors: S. Patel, M. Rovers, J.J. F ütterer, A. Boltyenkov, J.J. Rongen Source Type: research