* More than 25 years of experience* Consultant General and Endocrine Surgeon, Spire Cardiff Hospital (2012 - present) * Consultant General and Endocrine Surgeon, University Hospital of Wales (2010 - present)* Honorary secretary of the British Association of Endocrine and Thyroid Surgeons (BAETS) (2016 - present) ...

* Doctor of Medicine, University of Birmingham (2010)* Bachelor of Medicine and Bachelor of Surgery, University of Birmingham (1994)

* British Association of Endocrine and Thyroid Surgeons* British Medical Association * Intercollegiate Fellowship in General and Endocrine Surgery, Royal College of Surgeons Edinburgh (2008) ...

* Prognostic model to predict postoperative acute kidney injury in patients undergoing major gastrointestinal surgery based on a national prospective observational cohort study. STARSurg Collaborative. BJS Open. 2018 Jul 27;2(6):400-410. doi: 10.1002/bjs5.86. eCollection 2018 Dec.* A practical risk scale for predicting morbidity and mortality in the emergency general surgical setting: A prospective multi-center study. Ablett AD, McCarthy K, Carter B, Pearce L, Stechman M, Moug S, Ceelen W, Hewitt J, Myint PK; Older Persons Surgical Outcomes Collaboration. Int J Surg. 2018 Dec;60:236-244. doi: 10.1016/j.ijsu.2018.11.023. Epub 2018 Nov 24. PMID: 30481611 * Cognitive impairment is associated with mortality in older adults in the emergency surgical setting: Findings from the Older Persons Surgical Outcomes Collaboration (OPSOC): A prospective cohort study. Ablett AD, McCarthy K, Carter B, Pearce L, Stechman M, Moug S, Hewitt J, Myint PK; Older Persons Surgical Outcomes Collaboration. Surgery. 2018 Nov 16. pii: S0039-6060(18)30725-6. doi: 10.1016/j.surg.2018.10.013. [Epub ahead of print]* An N-Ethyl-N-Nitrosourea (ENU)-Induced Tyr265Stop Mutation of the DNA Polymerase Accessory Subunit Gamma 2 (Polg2) Is Associated With Renal Calcification in Mice. Gorvin CM, Ahmad BN, Stechman MJ, Loh NY, Hough TA, Leo P, Marshall M, Sethi S, Bentley L, Piret SE, Reed A, Jeyabalan J, Christie PT, Wells S, Simon MM, Mallon AM, Schulz H, Huebner N, Brown MA, Cox RD, Brown SD, Thakker RV. J Bone Miner Res. 2018 Nov 5. doi: 10.1002/jbmr.3624. [Epub ahead of print] PMID: 30395686* Prognostic Significance of Acute Kidney Injury Following Emergency Laparotomy: A Prospective Observational Cohort Study. Dewi F, Egan RJ, Abdelrahman T, Morris C, Stechman MJ, Lewis WG. World J Surg. 2018 Nov;42(11):3575-3580. doi: 10.1007/s00268-018-4744-1. PMID: 30097705* Association between peri-operative angiotensin-converting enzyme inhibitors and angiotensin-2 receptor blockers and acute kidney injury in major elective non-cardiac surgery: a multicentre, prospective cohort study. STARSurg Collaborative. Anaesthesia. 2018 Oct;73(10):1214-1222. doi: 10.1111/anae.14349. Epub 2018 Jul 9.* Body mass index and complications following major gastrointestinal surgery: a prospective, international cohort study and meta-analysis. EuroSurg Collaborative. Colorectal Dis. 2018 Aug;20(8):O215-O225. doi: 10.1111/codi.14292. Epub 2018 Jul 9.* Association between preadmission frailty and care level at discharge in older adults undergoing emergency laparotomy. Carter B, Law J, Hewitt J, Parmar KL, Boyle JM, Casey P, Maitra I, Pearce L, Moug SJ; ELF Study Group. Br J Surg. 2020 Feb;107(3):218-226. doi: 10.1002/bjs.11392. Epub 2020 Jan 10.* Impact of the change from the seventh to eighth edition of the AJCC TNM classification of malignant tumours and comparison with the MACIS prognostic scoring system in non-medullary thyroid cancer. Dwamena S, Patel N, Egan R, Stechman M, Scott-Coombes D. BJS Open. 2019 Jun 28;3(5):623-628. doi: 10.1002/bjs5.50182. eCollection 2019 Oct.* How to pass the emergency OSCE station. Edwards PJ, Stechman MJ, Green JT. BMJ. 2019 Oct 1;367:l2414. doi: 10.1136/sbmj.l2414.* Accreditation of endocrine surgery units. Musholt TJ, Bränström R, Kaderli RM, Pérez NM, Raffaelli M, Stechman MJ; ESES. Langenbecks Arch Surg. 2019 Nov;404(7):779-793. doi: 10.1007/s00423-019-01820-y. Epub 2019 Sep 7. Review.* Outcomes of surgery for benign and malignant adrenal disease from the British Association of Endocrine and Thyroid Surgeons' national registry. Patel N, Egan RJ, Carter BR, Scott-Coombes DM, Stechman MJ; British Association of Endocrine and Thyroid Surgeons. Br J Surg. 2019 Oct;106(11):1495-1503. doi: 10.1002/bjs.11297. Epub 2019 Aug 19.* Frailty predicts mortality in all emergency surgical admissions regardless of age. An observational study. Hewitt J, Carter B, McCarthy K, Pearce L, Law J, Wilson FV, Tay HS, McCormack C, Stechman MJ, Moug SJ, Myint PK. Age Ageing. 2019 May 1;48(3):388-394. doi: 10.1093/ageing/afy217. ...

* Secretary, British Association of Endocrine and Thyroid Surgeons (2016 - present)

* Director of Year 5, Centre for Medical Education, Cardiff University School of Medicine, Cochrane Building, Heath Park, Cardiff (2011 - present)* Quality and Safety Lead, Department of Surgery, Cardiff and Vale University Health Board (2013 - 2016)