Methods: Seven patients (5 boys, 2 girls; mean age 4.4 years; range 1 to 14 years) who underwent rigid esophagoscopy due to ingestion of an alkaline battery were evaluated.
Results: All the patients presented within the first 24 hours of ingestion. One patient had fever and vomiting. Foreign bodies were observed in the esophagus on direct radiograms, being in the cervical esophagus in two cases, thoracic esophagus in four cases, and distal esophagus in one case. The alkaline batteries were removed via rigid esophagoscopy under general anesthesia. Endoscopic examination showed mucosal erosion in five patients. No complications were encountered within a mean hospital stay of three days (range 1 to 5 days).
Conclusion: Ingestion of alkaline batteries can result in corrosive esophagitis leading to perforation and mediastinitis. Thus, they should be removed via rigid esophagoscopy without delay to prevent these complications.