Diabetic foot is a formidable complication of diabetes mellitus. It is frequent and serious, with a very high rate of amputation of pelvic limbs and dramatic socio-economic and psychological consequences.

Objective: To study the epidemiological, diagnostic and therapeutic aspects of diabetic feet in the emergency department of the Brazzaville University Hospital Center.

Patients and method: This was a descriptive cross-sectional study with retrospective data collection that took place in the medical-surgical emergency department of the Brazzaville University Hospital. It covered the period from 1^er January 2021 to 31 December 2022. We included all patients treated surgically in the emergency department for a diabetic foot. Epidemiological, diagnostic and therapeutic variables were studied.

Results: During the study period, 673 patients were admitted to the emergency department of Brazzaville University Hospital, including 106 patients with trophic disorders of the foot who had undergone surgical treatment, representing a frequency of 15.75%. The mean age was 55.41 ± 9.94 years (37 to 83 years). Males predominated, with a sex ratio of 1.3. Type 2 diabetes mellitus was found in 92 patients (86.79%). Hypertension (51.90%), dyslipidaemia (29%) and obesity (13.96%) were the main associated cardiovascular risk factors. 12 patients had previous foot lesions leading to amputation, involving the leg (2 cases), the metatarsals (4 cases) and a toe (1 case). Foot lesions were classified as stage 3D (29.24%), stage 3C (27.35%), stage 3B (18.86%), stage 2B (14.15%) and stage 1C (9.43%). 80 patients (75.5%) had undergone amputation: trans tibial (62.5%), trans femoral (18.75%), trans metatarsal (8.75%).