Clinical study of esophageal foreign bodies attributable to PTP material.

Retrospective survey of patients with esophageal foreign bodies who were treated in the Osaka Medical College over the past 21 years, and the patients with esophageal foreign bodies attributed to press through package (PTP) who were treated at the Osaka Central Emergency Clinic, a representative holiday emergency institution in Japan, was carried out. The incidence of foreign bodies attributed to PTP material tends to increase throughout the period reviewed. The patients over 60 years of age accounted for 25/28 (89%) of all PTP patients in Osaka Medical College and 27/32 (84%) in Osaka Central Emergency Clinic, strongly suggesting that PTP dysphagia is most common in elderly patients. Diagnostic methods and preventive measures against PTP foreign bodies were discussed.