https://www.sciencedaily.com/releases/2021/02/210216115112.htm > The systematic review reinforces cardiopulmonary resuscitation (CPR) as the 'gold standard' technique when health professionals or members of the public are attempting to resuscitate someone in cardiac arrest. > The article, published in the journal Resuscitation, is the first comprehensive systematic review of evidence on the effectiveness of three less-used resuscitation techniques: cough CPR, percussion pacing and precordial thump. The precordial thump, in which a patient is struck on the chest in the hope of restarting the heart, has often been used in dramatic scenes in TV and film, such as in Grey's Anatomy and Lost.