Exploration of the Parameters Influencing the Effort Limitation of Patients Suffering From Homozygous Sickle Cell Anemia

The cardiovascular complications of sickle cell disease are associated with major morbidity and mortality, as well as impaired quality of life. Stratifying the cardiovascular risk of these patients solely on resting parameters (blood pressure, cardiac ultrasound) is limited. The hypothesis that an exhaustive analysis of the physiological parameters of exercise is launched allows more relevant phenotyping and therefore much better stratification of the individual risk of these patients.

Recent studies have shown a paradigm shift in the use of physical activity. Hitherto inadvisable (acidosis, vaso-occlusive crises), if adapted, moderate and regular, it can lead to functional improvement and a reduction in crises. As a result, cardiovascular exercise rehabilitation is becoming increasingly popular in this population.

It's easy to see how effort assessment, particularly through cardiorespiratory exchanges, will become more common in this pathology, making its analysis accessible and interesting.

Inclusion criteria

• Adult patient ≥ 18 years old
• Affiliated with a social security scheme (beneficiary or beneficiary's beneficiary)

Exclusion criteria

• Pregnant or breast-feeding women
• Patients under guardianship, curatorship or legal protection
• Patient under AME
• Patient with a contraindication or unsuitability for physical activity on a cycloergometer