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Mr Benjamin Allin MBBS BSc MRCS DPhil

Post Doctoral Clinical Research Fellow in Paediatric Surgery


Ben Allin is a Postdoctoral Clinical Research Fellow in Paediatric Surgery. He graduated from Imperial College in 2010, before completing foundation training in London, and a Paediatric Surgical Academic Clinical Fellowship in Oxford. His DPhil in Population Health focussed on investigating whether outcomes for children undergoing early surgery could be improved through the development and use of core outcome sets. Ben is a Paediatric Surgical Registrar at Chelsea and Westminster Hospital, and an Honorary Paediatric Surgical Registrar at Oxford Children's Hospital.

Ben's past research has focussed primarily on conducting large-scale National/International cohort studies, and using Delphi methodology to achieve consensus around clinically important questions. Amongst other things, his work has helped to advance the evidence base for treating children with gastroschisis and Hirschsprung's disease, and has helped develop a pathway for the management of children with Paediatric Inflammatory Multi-System Syndrome Temporally associated with COVID-19.

Ben is a co-applicant on a £2 million NIHR HS&DR Research Grant, the overall aim of which is to investigate whether it is possible to reduce unwarranted variation in outcomes of children's surgery by developing the Children's Surgery Outcome Reporting system (CSOR). CSOR will combine routinely collected data, data from electronic operative records, and parent reported outcomes data, and through use of an online dashboard and facilitated feedback, provide individual hospitals with data on how their case-mix adjusted outcomes compare to those of other hospitals. Provision of such feedback will allow investigation of where variation in practice results in variation in outcome


National Consensus Management Study Group. A national consensus management pathway for paediatric inflammatory multisystem syndrome temporally associated with COVID-19 (PIMS-TS): results of a national Delphi process. Harwood R, Allin B, Jones CE, Whittaker E, Ramnarayan P, Ramanan AV, Kaleem M, Tulloh R, Peters MJ, Almond S, Davis PJ, Levin M, Tometzki A, Faust SN, Knight M, Kenny S; PIMS-TS Lancet Child Adolesc Health. 2020 Sep 18:S2352-4642(20)30304-7. doi: 10.1016/S2352-4642(20)30304-7.

Core outcome set for uncomplicated acute appendicitis in children and young people. Sherratt, F.C., Allin, B.S.R., Kirkham, J.J., Walker, E., Young, B., Wood, W., Beasant, L. Eaton, S. and Hall, N.J. (2020), Br J Surg. doi:10.1002/bjs.11508

The identification of key indicators to drive quality improvement in obstetric anaesthesia: results of the Obstetric Anaesthetists' Association/National Perinatal Epidemiology Unit collaborative Delphi project. Bamber, J. H., Lucas, D. N., Plaat, F. , Allin, B. , Knight, M. and (2019), Anaesthesia. doi:10.1111/anae.14861

Developing a set of consensus indicators to support maternity service quality improvement: using Core Outcome Set methodology including a Delphi process. KJ Bunch, BSR Allin, M Jolly, T Hardie, M Knight. BJOG: an international journal of obstetrics and gynaecology. 2018;125(12):1612-8.

Development of a gastroschisis core outcome set. BSR Allin, NJ Hall, AR Ross, SS Marven JJ Kurinczuk, M Knight. Archives of Disease in Childhood - Fetal and Neonatal Edition:104:F76-F82 (2019)

Systematic review and meta-analysis comparing outcomes following orchidopexy for cryptorchidism before or after 1 year of age. B. S. R. Allin, E. Dumann, D. Fawkner-Corbett, C. Kwok, C. Skerritt,on behalf of the Paediatric Surgery Trainees Research Network. BJS Open, DOI: 10.1002/bjs5.36 (2018)

One-year outcomes following surgery for necrotising enterocolitis: a UK-wide cohort study. BSR Allin, A Long, A Gupta, K Lakhoo, M Knight, The British Association of Paediatric Surgeons Congenital Anomalies Surveillance System Necrotising Enterocolitis Collaboration, Archives of Disease in Childhood - Fetal and Neonatal Edition 2018;103:F461-F466.

NETS1HDstudy: development of a Hirschsprung's disease core outcome set. BSR Allin, T Bradnock, S Kenny, J Kurinczuk, G Walker, M Knight. Archives of disease in childhood, doi:10.1136/archdischild-2017-312901 (2017).

A UK wide cohort study describing management and outcomes for infants with surgical Necrotising Enterocolitis. BSR Allin, A-M Long, A Gupta, M Knight, K Lakhoo. Scientific Reports 7, 41149, doi:10.1038/srep41149

Development of a core outcome set for use in determining the overall success of gastroschisis treatment. BSR Allin, A Ross, S Marven, NJ Hall, M Knight. Trials. 2016 Jul 27;17:360. doi: 10.1186/s13063-016-1453-7.

NETS1HD: study protocol for development of a core outcome set for use in determining the overall success of Hirschsprung's disease treatment. BSR Allin, T Bradnock, S Kenny, G Walker, M Knight, M. Trials 17, 577, doi:10.1186/s13063-016-1693-6 (2016)

Oesophageal atresia with no distal tracheoesophageal fistula: Management and outcomes from a population-based cohort. AM Long, A Tyraskis, BSR Allin, DM Burge, M Knight. Journal of pediatric surgery. 2017;52(2):226-30.

Variability of outcome reporting in Hirschsprung's Disease and gastroschisis: a systematic review. BSR Allin, A Irvine, N Patni, M Knight, M. Sci Rep 6, 38969, doi:10.1038/srep38969 (2016).

What evidence underlies clinical practice in paediatric surgery? A systematic review assessing choice of study design. BSR Allin, N Aveyard, T Campion –Smith, E Floyd, J Kimpton, K Swarbrick, E Williams, M Knight. PLoS One. 2016 Mar 9;11(3):e0150864. doi: 10.1371/journal.pone.0150864. eCollection 2016. Review.

Laparoscopic assistance for primary transanal pull-through in Hirschsprung's disease: a systematic review and meta-analysis. D Thompson, BSR Allin, A Long, T Bradnock, G Walker, M Knight. BMJ open 5: e006063.

Challenges of improving the evidence base in smaller surgical specialties, as highlighted by a systematic review of gastroschisis management. BSR Allin, WHW Tse, S Marven, PRV Johnson, M Knight. PLoS One. 2015 Jan 26;10(1):e0116908. doi: 10.1371/journal.pone.0116908. eCollection 2015.

Positive outcomes following entero-lithotomy for the treatment of large bowel obstruction secondary to gallstones. K Swarbrick, BSR Allin, T Yeung, M Sampson. BMJ Case Rep 2014.

Outcomes at one-year post anastomosis from a national cohort of infants with oesophageal atresia. BSR Allin, M Knight, P Johnson, D Burge, on behalf of BAPS-CASS. PLoS ONE. 2014 Aug 9(8) e106149. doi:10.1371/journal.pone.0106149

A Single Centre Experience of Abdominal Wall Graft Rejection after Combined Intestinal and Abdominal Wall Transplantation submitted. BSR Allin, CDL Ceresa, F Issa, G Casey, O Espinoza, S Reddy, S Sinha, H Giele, PJ Friend, A Vaidya. American Journal of transplantation. 2013 Aug 13(8):2211-5.

Ruptured Renal Calyx Mimicking Leaking Abdominal Aortic Aneurysm. BSR Allin, A Chetwood, B Koubehi, R DasGupta. BMJ case Reports. 2012 May 30;2012.