WARNING: Performing the Heimlich maneuver can result in broken ribs and other serious abdominal injuries. You should only perform the maneuver if you are certain the victim's life is in peril.
上面摘自这个指南
http://www.mahalo.com/how-to-perform-the-heimlich-maneuver/
里的警告。
CPR和Heimlich maneuver都有可能弄断或弄裂肋骨,即使受过训练仍然不能完全避免。