Epidemiological data on lower limb lymphedema

Objective: The aim of the present study was to evaluate epidemiological data of patients seen at a clinic specialized in the treatment of lymphedema. Methods: A retrospective, cross-sectional study was conducted involving data from 150 consecutive patients with lower limb lymphedema in clinical stages II and III treated at the Godoy Clinic in São Jose do Rio Preto. The follow data were collected: sex, age, type of lymphedema (primary or secondary), cause of secondary lymphedema (cancer, trauma, venous disease) and limb dominance. The diagnosis of lymphedema was based on the clinical history and physical examination; in cases of doubt, lymphoscintigraphy of the lower limbs was requested. Descriptive statistics were performed and results were expressed as percentages. Results: Twenty-five (16.66%) of the patients were male and 125 (83.33%) were female. Mean age was 42.52 years (41.8 years among the men and 42.67 years among the women). One hundred nine cases (72.66%) were primary lymphedema and 41 (27.33%) were secondary. Among the secondary cases, 27 (18%) were related to cancer treatment, 10 (6.6%) were linked to trauma and four (2.6%) were cases of phlebolymphedema. Mean age was 51.4 years among the patients with cancer treatment-related lymphedema, 41 years among those with trauma-related lymphedema and 64.25 years among those with phlebolymphedema. The left leg was affected in 61 cases (40.66%), the right leg was affected in 37 cases (24.66%) and lymphedema was bilateral in 52 cases (34.66%). Conclusion: Primary lymphedema was predominant and affected women more than men. Primary lymphedema occurred at an earlier age compared to cancer treatment-related lymphedema and phlebolymphedema. The left leg was affected more often, followed by bilateral lymphedema and, finally, the right leg alone.