Evaluation of Post-Exercise Test Hematuria in Hamadan, Iran

Background- Hematuria associated with sports activity is a well-recognized entity in subjects who participate in a variety of sports. This study was designed to determine the incidence of postexercise hematuria in patients participating in exercise test. Methods- 120 patients who were referred by cardiologists from August to October 2003 to participate in treadmill exercise tests were randomly selected. The first urine sample was taken before exercise and the second urine sample after the completion of the exercise test. In those patients who had post-exercise hematuria, ultrasound studies were performed to rule out other potential causes of hematuria. Results- 85% of the participants in the exercise-test had post-exercise test hematuria (59.8% microscopic, 25.2% macroscopic). Regarding age, there was no statistically significant difference between the mean age of the patients who had hematuria and those who did not (55.2 vs. 55.8 yrs, P>.05). Regarding gender, the incidence of post-exercise test hematuria was higher in women, but the difference was again not statistically significant (87.2% vs. 83.8%, P>.05).Conclusion- The incidence of post-exercise hematuria is high, and it is very important to be familiar with this entity in patients who participate in treadmill exercise tests to properly deal with them and avoid unnecessary work-ups, especially if they are young and have transient hematuria (Iranian Heart Journal 2007; 8 (3): 32-35).