Dr Philip Johnston

Qualifications

MB BCh BAO Queen’s University Belfast 2003

MD Queen’s University Belfast 2011

MRCP (Endocrine and Diabetes) Royal College of Physicians 2011

ECFMG 2013

OHIO State Medical Board License, MD Training Certificate, USA 2014

FRCP (Lon) Royal College of Physicians 2017

Professional bodies (Positions held in last 3 years)

Royal College of Physicians (London)

General Medical Council

Medical Defence Union

Diabetes UK

Ulster Medical Society

Irish Endocrine Society

Society for Endocrinology

The Endocrine Society

American Association of Clinical Endocrinologists

Pituitary Society

Publications

PC Johnston, A Herron, M Davies, M Taylor, G Magee, A Nugent, J Garrity, I Wallace, J Thompson.

Clinical characteristics, management and psychological outcomes of patients with diabetes mellitus secondary to chronic pancreatitis (DMsCP) referred to the Belfast Pancreatic Diabetes clinic. Practical Diabetes February 2024

AJ Waterworth, AC Hamilton , PC Johnston, A Todd, G Connolly, A Nugent, P 5 Scullin, S McKenna, S Lawless, HJ Wallace, IR Wallace.

Identifying patients at risk of steroid-induced diabetes and hyperglycaemia in a day-case systemic anti-cancer therapy (SACT) population: the Belfast Regional Oncology Centre Experience. Practical Diabetes March 2023

Lad SU, Ali KF, Johnston PC, San Martin VT, Bottino R, Lin YK, Walsh RM, Stevens T, Tu C, Hatipoglu B.

Follow-up of Patients After Total Pancreatectomy and Islet Cell Autotransplantation at Off-Site Islet Isolation Facility. J Clin Endocrinol Metab. 2022 Dec 13

PC Johnston. J Thompson ,B Roberts, A McKee, M Taylor, V Ellison.

Faecal elastase (FEL-1) testing and factors associated with the development of pancreatic exocrine insufficiency (PEI) amongst patients with diabetes mellitus: the Belfast Trust Experience. Practical Diabetes Accepted April 2022 in print

C Hamill, PK Ellis, PC Johnston.

Thyroid ultrasound for the assessment of thyroid nodules: an overview for non-radiologists. British Journal of Hospital Medicine. Accepted April 2022 in print

Jamison C, Peto T, Quinn N, D'Aloisio R, Cushley LN, Johnston PC.

Screening attendance, prevalence and severity of diabetic retinopathy (DR) in a cohort of patients with diabetes mellitus secondary to chronic pancreatitis (DMsCP) in Northern Ireland. BMJ Open Diabetes Res Care. 2021 Sep;9(1):e002267. 

McCleane A, Hunter M, Johnston PC, Trimble M, Malloy J, Wallace IR.

A rare, but life-threatening sore throat: A case of Lemierre's syndrome. Acute Med. 2021;20(1):78-82

Henry A, Nugent A, Wallace IR, Oladipo B, Sheehy O, Johnston PC.

Pituitary metastasis: a clinical overview. Ulster Med J. 2021 Sep;90(3):146-150

Perlman JE, Johnston PC, Hui F, Mulligan G, Weil RJ, Recinos PF, Yogi-Morren D, Salvatori R, Mukherjee D, Gallia G, Kennedy L, Hamrahian AH.

Pitfalls in Performing and Interpreting Inferior Petrosal Sinus Sampling: Personal Experience and Literature Review. J Clin Endocrinol Metab. 2021 Apr 23;106(5):e1953-e1967

Hamill C, Ellis PK, Johnston PC.

Point of care thyroid ultrasound (POCUS) in endocrine outpatients: a pilot study.  Ulster medical Journal 2020;89 (1);21-24

Treatments and areas of interest

• Pituitary disorders-cushings, prolactin, acromegaly and adrenal disorders
• Addison’s paragangliomas, obesity/weight loss, thyroid-hypothyroidism/hyperthyroidism
• Calcium disorders, cushings syndrome, thyroid ultrasound, thyroid nodules/goitres
• Pancreatic diabetes, pancreatic exocrine insufficiency (PEI), type 1 diabetes, type 2 diabetes
• PCOS, endocrine and metabolic effects of cancer treatment
• Delayed puberty, testosterone deficiency, hypercholesterolemia, hypertension, general endocrinology

Referral Requirements

• Referral preferred, but will accept self referrals