Pain assessment in acute myocardial infarction patients

The purpose of this study was to investigate the pain intensity and duration, and to assess the pain control intervention, in patients with acute myocardial infarction (AMI). Ninety-seven patients (18 diabetics and 79 non-diabetics) admitted to the hospital with chest pain were included in this study. Pain was measured on the numerical rating scale (NRS) 0–10, where 0 means no pain and 10 unbearable pain. All patients were followed for 12 hours, after the last chest pain episode. The data were statistically evaluated with the Student's t-test and chi square (χ 2). The pain in AMI patients with diabetes mellitus was lower in intensity ( P < 0.002) and shorter in duration ( P < 0.000) respectively, compared with the non-diabetic AMI patients. The intensity of pain in patients with an anterior infarction tended to be higher ( P < 0.03) than in those with an inferior infarction. Finally, the systolic blood pressure fell si gnificantly ( P < 0.000) 90 min after admission. No other significant differences were found.