Professional background

Andrea qualified from Barts and The London Medical School in 2001 with degrees in medicine (MBBS) and neuroscience (BSc).

Following this she undertook general and subspecialty paediatric training in North Central and East London including tertiary oncology and haemoglobinopathy posts. She worked as a general paediatric and neonatal consultant at Whipps Cross from 2013-2019. During this time she was the clinical lead for the Paediatric Oncology Shared Care Unit and haemoglobinopathy service.

She was the Barts Health Lead for adolescent care and has an interest in transition and service development. Andrea joined the team at UCLH as a general paediatric consultant in 2019 and undertakes clinical work in the paediatric emergency and inpatient department, as well as undertaking general paediatric and rapid access clinics.

She has a weekly paediatric red cell clinic with Dr Sara Trompeter and contributes to the red cell MDT. Andrea also has an interest in paediatric supportive care oncology and is working with the team to develop supportive care pathways for proton beam therapy.

Research interests

Andrea has an interest in transition from child to adult services.

At Barts Health NHS Trust Andrea was a co-investigator on an NIHR funded study entitled 'Transitions from paediatric to adult services for Sickle Cell Disease (SCD): A prospective qualitative study examining young adult patient experiences'. At UCLH she is involved in various clinical trials in children and young people with sickle cell and thalassaemia disorders.


Chanchlani N, Rack D, Hossain U, Leigh A. A 14-month old boy with abrupt-onset petechiae and bruising. Arch Dis Child Educ Pract Ed. 2019 Jun 5. pii: edpract-2019-316952. PMID: 31167853.

Telfer P, Dwan K, Simmons A et al. (2016). Transcranial Doppler Screening in a Regional Care Network for Sickle Cell Disease in the United Kingdom.J Pediatr Hematol Oncol vol. 38, (7) 517-524. 10.1097/MPH.0000000000000633

Chanchlani N, Harewood C, Hossain U, Leigh A. Better Transition Readiness for Adolescents Begins With Effective Communication. J Pediatr Hematol Oncol. 2015 Oct;37(7):574-5. doi: 10.1097/MPH.0000000000000404. No abstract available. PMID: 26207774


Transition of patients with Sickle Cell Disease, how can we help? N Chanchlani, A Leigh et al. Arch Dis Child 2015;100(suppl 3): A66.

Percutaneous endoscopic gastrostomy feeds improve weight and body mass index in children with Sickle Cell Disease. AY Leigh, P Telfer et al. Haematologica 96(s2):307, 2011.

Percutaneous endoscopic gastrostomy feeds in children with sickle cell disease and growth failure; a novel approach with high patient and carer satisfaction. AY Leigh, P Telfer et al. BJH 153:65, 2011.

Online resources:Transition from child to adult services. A video co-produced with service users and medical students exploring transition.