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Our Research

Our research includes Cardio-Pulmonary Exercise Testing (CPET), indirect calorimetry, body composition analysis, non-invasive cardiac output analysis, muscle ultrasound imaging, near infrared spectrometry and blood analysis of mitochondrial function. We are also exploring the use of artificial intelligence in healthcare to better understand the factors influencing the development of perioperative morbidity. Our research aims to help identify the 'at-risk' patient by evaluating perioperative metabolic and mitochondrial phenotypes to generate a risk profile for postoperative complications. 

Research Opportunities 

There is a wide range of research opportunities within the HPPL lab, ranging from Undergraduate Research projects to PhD mentorship so please do reach out if you would like to be involved. 


Current funded opportunities include research focused perioperative medicine fellowships based clinically at UCLH.

We collaborate closely with:

  • The Bloomsbury Institute of Intensive Care Medicine, headed by Professor Mervyn Singer where Dr Arulkumaran and Dr Tim Snow are carrying out work on the immune response to surgery. 

  • The UCL Centre for Perioperative medicine, headed by Professor Ramani Moonesinghe though the Perioperative theme at the National Institute of Health Research funded Biomedical Research Centre.


  • The Echo Lab, headed by Dr Sam Clark,  which focuses on using advanced imaging techniques of the heart to predict and map complications around surgery and in critical illness.

  • The Welconme/EPSRC Centre for Interventional and Surgical Sciences (WEISS) where Dr Evans Mazomenos supports Dr Arina in his Machine Learning and AI work to identify and detect patterns in perioperative physiological data. 

  • The Cardio-Pulmonary Exercise Testing (CPET) Lab, headed by Dr Robert Stephens and Dr John Whittle where exercise physiologists Nicholas Tetlow and Amy Dewar lead the day-to-day CPET clinic and Physiological assessments. They are also supported by Daisy Jarvis and Jack Colbert. 

  • The UCLH prehabilitation program, headed by Dr Whittle where a multi-dispilinary team including, dietitians, physiotherapists, physiologists, geriatricians, and clinicians work on identifying, optimising, and improving a patients surgical journey. 

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