Emergency crews expanded the search for a missing Otsego County man on Tuesday, after he left Bassett Medical Center in Cooperstown against doctors’ advice. We learned Tuesday that Matt Sisson left the hospital with an IV port still in his arm. He has not been seen since. Searchers have been seen in wooded areas around the facility, along the Susquehanna River banks, and up and down Routes 26 and 28. Drones have also been used to assist, but there has been no sign of Matt Sisson.