Transfer
Transfer patients with disk batteries lodged in the esophagus to a medical treatment facility capable of performing endoscopic procedures.
Deterrence/Prevention
More than one half of ingested batteries (53%) were removed from a product before ingestion. Products need to be designed with secure battery compartments that can withstand a child's prying hands or a fall.
Complications
Complications in major outcome cases have included tracheoesophageal fistulas, other esophageal perforations, esophageal strictures requiring repeated dilations, vocal cord paralysis from recurrent laryngeal nerve damage, mediastinitis, pneumothorax, pneumoperitoneum, tracheal stenosis, tracheomalacia, aspiration pneumonia, empyema, lung abscess, and spondylodiscitis.[1]
The possibility of heavy metal poisoning, especially from mercury, has been considered. A typical battery may contain from 15-50% mercuric oxide, leading to possible ingestion of as much as 5 g of mercury, a potentially lethal amount. This theoretical threat of toxicity has not been borne out by clinical experience. In a series of 2382 battery ingestions, no clinical evidence of mercury toxicity was observed.[6]
A spent cell, which no longer has enough power for the intended device, may still maintain considerable residual voltage. However, new cells are 3.2 times likely to be associated with clinically significant outcomes than spent cells.[1]
Retrograde movement of the battery from the stomach to the esophagus has been reported as a complication of use of ipecac syrup, necessitating emergent endoscopic removal. If the battery produces a mucosal burn, a theoretical risk exists of battery aspiration and perforation of the esophagus or stomach.
Prognosis
The usual outcome of disk battery ingestions is an uneventful passage. More than 97% of disk battery ingestions have only mild effects or none at all. See image below.
NPDS button-battery ingestion frequency and severity (for moderate, major, and fatal outcomes), according to year. From reference 17. Patient Education
For excellent patient education resources, visit eMedicine's Poisoning Center. Also, see eMedicine's patient education article Battery Ingestion.
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