Dr. David Caparelli spoke with <a href="https://twitter.com/CBSNews&quot; target="_blank">@CBSNews</a> about how Cryo Nerve Block is improving recovery for cardiac patients. By freezing nerves during surgery, <a href="https://twitter.com/hashtag/cryoNB?src=hashtag_click&quot; target="_blank">#cryoNB</a> can reduce pain for months &amp; help patients return to daily life more comfortably. Watch now: