Research
What I work on, and a selection of the papers.
Most of my research asks a single question in different settings: what happens, psychologically, to people who live with a serious heart condition, and what would it take for the health system to attend to it properly.
What I work on
Congenital heart disease across the lifespan
Children are now surviving heart conditions that used to be fatal, and they grow into adults who carry both the condition and the history of it. I study how those adults actually fare: quality of life, anxiety and depression, how they perceive their illness, what they report about their own care. Much of this work has been done through APPROACH-IS, an international collaboration that has now collected patient-reported data across dozens of countries, which lets us ask which of these difficulties are universal and which are made by the country a patient happens to live in.
The handover from paediatric to adult care
The transfer out of paediatric cardiology is one of the most dangerous moments in a patient's life, and it is largely an organisational problem rather than a medical one. I have worked on international consensus guidance for doing it better.
Illness, surgery and hospitalisation as psychological events
Cardiac surgery, intensive care and rehabilitation each make their own psychological demands, on patients and on the people around them. This includes the clinicians: the psychological load carried by staff is real, it is measurable, and it is usually ignored until it produces attrition.
Trauma, and EMDR
A serious cardiac event can leave genuine post-traumatic symptoms, and they often go unnamed because everyone involved is focused, reasonably enough, on the heart. I work on the use of EMDR in this population, including delivered remotely, and on the evidence base for EMDR more broadly.
Rare disease
I work with patients and families affected by Marfan syndrome, Alström syndrome and hereditary angioedema, on fatigue, quality of life, and the measures we use to capture them. Rare disease concentrates every problem in the paragraphs above and adds isolation to it.
Getting evidence into practice
A good model of psychosocial care that nobody adopts is not a good model. A recurring strand of my work is implementation: consensus recommendations, position papers, and the frameworks that determine whether any of it survives contact with a real service.
Selected publications
A selection, most recent first. The complete record is on the institutional repositories linked below.
- Person-centred care in congenital heart disease: intercountry variation in patient-reported experiences across 32 countries Lykkeberg B, Christensen AV, Berg SK, et al, Callus E, et al, Moons P. International Journal of Cardiology, 2026;444:133958. doi:10.1016/j.ijcard.2025.133958
- Remote eye movement desensitization and reprocessing for posttraumatic stress disorder in adult congenital heart disease: a clinical case study Callus E. Clinical Case Studies, 2025;24(6):409–426. doi:10.1177/15346501251386456
- Phenotyping fatigue profiles in Marfan syndrome through cluster analysis: a cross-sectional study of psychosocial and clinical correlates Udugampolage NS, Taurino J, Pini A, Callus E, et al, Caruso R. Journal of Clinical Medicine, 2025;14(16):5802. doi:10.3390/jcm14165802
- Anxiety and depression in adults with congenital heart disease Kovacs AH, Luyckx K, Thomet C, et al, Callus E, et al, Moons P. Journal of the American College of Cardiology, 2024;83(3):430–441. doi:10.1016/j.jacc.2023.10.043
- EMDR: dispelling the false memory creation myth, in response to Otgaar et al. (2022a) Frontiers in Psychology, 2024;15:1366137. doi:10.3389/fpsyg.2024.1366137
- Assessing patient education needs in cardiac rehabilitation: a commentary on the Information Needs in Cardiac Rehabilitation scale (short version) validation study Callus E. European Journal of Preventive Cardiology, 2024;31(16):1937–1938. doi:10.1093/eurjpc/zwae161
- Recommendations for developing effective and safe paediatric and congenital heart disease services in low-income and middle-income countries: a public health framework BMJ Global Health, 2023;8(5):e012049. doi:10.1136/bmjgh-2023-012049
- Transition to adulthood and transfer to adult care of adolescents with congenital heart disease: a global consensus statement Moons P, Bratt EL, De Backer J, et al, Callus E, et al, Johansson B. European Heart Journal, 2021;42(41):4213–4223. doi:10.1093/eurheartj/ehab388
- Stress reduction techniques for health care providers dealing with severe coronavirus infections (SARS, MERS and COVID-19): a rapid review Frontiers in Psychology, 2020;11:589698. doi:10.3389/fpsyg.2020.589698
- Best practice in psychological activities in cardiovascular prevention and rehabilitation: position paper Monaldi Archives for Chest Disease, 2018;88(2):47–83. doi:10.4081/monaldi.2018.966
- Multidisciplinary family-centred psychosocial care for patients with CHD: consensus recommendations from the AEPC Psychosocial Working Group Cardiology in the Young, 2018;28(2):192–198. doi:10.1017/S1047951117001378
- Quality of life of adults with congenital heart disease in 15 countries: evaluating country-specific characteristics Journal of the American College of Cardiology, 2016;67(19):2237–2245. doi:10.1016/j.jacc.2016.03.477
- Social support, depression, and heart disease: a ten year literature review Frontiers in Psychology, 2013;4:384. doi:10.3389/fpsyg.2013.00384
The complete record
- ORCID · 0000-0001-9286-1825
- Scopus author profile
- AIR, the University of Milan research archive
- ResearchGate