Post-cardiac arrest myocardial dysfunction significantly contributes to early mortality after the return of spontaneous circulation. However. no effective therapy is available now. Aldehyde dehydrogenase 2 (ALDH2) enzyme has been shown to protect the heart from aldehyde toxicity such as 4-hydroxy-2-nonenal (4-HNE) and oxidative stress. https://www.chiggate.com/nhl-hockey-2020-draft-puck-hot-on-sale/