火薬の爆発による鼓膜火傷の1例

THERMAL BURN OF THE TYMPANIC MEMBRANE DUE TO EXPLOSION OF GUN POWDER

　Ⅰ．序

　中学生が火薬を作つている時に，誤つて爆発し，右手を挫滅して，手術的に手関節より切断するという不幸な事故があつた。

　耳鼻科的には，右鼓膜に火花によると考えられるかなり大きな穿孔を認めたが，紙の小片を鼓膜に貼付することにより，鼓膜の穿孔の再生閉鎖に成功した。

　A case of thermal burn of the tympanic membrane is reported.

　A boy, aged 14, while experimenting with explosive powder met an accidental explosion which caused a second degree burn of the face, upper part of the body and maiming of the right hand that, eventually, required an amputation at the wrist.

　During the course of treatment and hospitalization the patient complained of tinnitus aurium of the right ear. Examination showed a large perforation of the tympanum that covered about 2/5 of its area. Because a part of the remaining portion of the membrane showed a darkened area the diagnosis of thermic-burn-perforation was made.

　This perforation was covered over by a piece of paper for the period of one month; and, at the end of which time the perforation was found to be completely healed. At the final examination the patient showed the effects of some conduction deafness but there was no sign of vestibular disturbance.