[Pain: its occurrence and evolution in the postoperative period of heart and abdominal surgery].

The high incidence and low resolution of the pain after surgery are shown in international literature. During the five days after the cardiac and abdominal surgery, these patients were asked once a day about their pain. Nearly 50% of the patients answers showed pain complaints. At the cardiac patients 47% did not take treatment during the last four hours, although the medicine was prescribed by the doctor to be used in eventual necessity. Similar occurrences happened with abdominal patients where no medicine was given in 68.2% events of their pain complaints. So, we find that the under-identification and undertreatment of the pain are like the other studies.