After Santos spent time with his dog, doctors noted a welcome change. Their patient's overall outlook seemed to transform.
"I was surprised," Dr. Rodrigo Tancredi told news outlet Globo. "He was conscious, oriented and talking."
Tancredi went on to note that such visits from pets appear to have both psychological and physical benefits, resulting in an increased appetite and lower heart rate and blood pressure.
"We visibly noticed his improvement the other day," Tancredi said. "The improvement occurred in a gradual way and remains."