Ludwig's angina in a child: a case report and literature review

BackgroundLudwig's angina is a diffuse cellulitis in the sub-mandibular space, which extends to the sublingual space. It is an emergency that often occurs in adults as a complication of oral infections. It is rare in children and is particularly life-threatening due to the smaller size, as well as the characteristics in these spaces in a child. This is the case of Ludwig's angina in a 2-year-old boy, with rapid onset of signs of respiratory discomfort, no dental or systemic etiology, and great evolution.Case presentationA little boy was brought by his mom to the emergency room for the onset a firm swelling in the sub-mental region along with pain and fever, which appeared 3 days prior to the consultation. He was first examined by a pediatrician who prescribed oral broad-spectrum antibiotics (amoxicillin). The symptoms worsened over 48 h, as the little boy presented respiratory discomfort in supine position.He was admitted in the emergency department. Without dysphagia or respiratory distress.The clinical examination showed swelling in the sub-mental and sub-mandibular region with/without trismus or signs of oral infection. The laboratory investigations showed hyper-leukocytosis with a microcytic hypochromic anemia.CRP = 300; HIV test was negative.The computed tomography (CT scan) showed a diffuse abscess in the sub-mental and sub-mandibular and sub-lingual regions.No mediastinal collection was found.The diagnosis of Ludwig's angina was established.The patient underwent percutaneous surgical drainage of 15 ml of pus, which alleviated his symptoms, the treatment was carried out through broad-spectrum antibiotics, analgesics, and daily cleaning of the wound and change of surgical dressing. Bacteriological exam found gram-positive cocci in chains. The culture showed a Staphylococcus aureus. The patient presented clinical and biological improvement and was discharged after 7 days.Six months follow-up showed a healthy child, without signs of infection or any other complication.ConclusionLudwig's angina in children -however rare- is a potentially life-threatening, rapidly spreading, bilateral swelling of the sub-mandibular. Its management is based on airway control, drainage of the collection and broad-spectrum intravenous antibiotics, as well as surveillance of the biological parameters.Early diagnosis and appropriate management enhances outcome and decreases mortality significantly.