"Emergency surgery" refers to a medical procedure that is done urgently and unexpectedly in order to save a person's life or prevent serious harm. Full definition
-- can make pets very ill indeed, ranging from an upset stomach to the need for emergency surgery. (gopetplan.com)
You should consider having your kitten tested to find out which type of blood she has in case she needs emergency surgery in the future. (cat-lovers-only.com)
A few months ago, she had to undergo emergency surgery and was off work for several weeks. (alliedcash.com)