Stoppage
Suspension
noun, する verb
Halt and stop. When something does this, it's in a stoppage.
ていし
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
私の兄は一度心肺停止にまで至ったんですが、外科医が心臓マッサージを施した後に、心臓が再び脈動しだしたんです。
My brother once went into cardiopulmonary arrest, but his heart started beating again after the surgeon performed a cardiac massage.