Pigmenturia and acute renal injury after intense drum session
Abstract
Background: among regular drummers it is usual the emission of rust-colored urine after sessions. Since 1999, many patients have presented rust-colored urine and acute renal injury (ARI) after sessions.
A prospective study of a group of drummers after playing intensively their instruments in order to analyze the incidence of urinary alterations and to assess pathogenic mechanisms.
Methods: people of two Candombe bands were recruited a week before the Llamadas. After obtaining the informed consent, blood and urine samples were got from the participants before the session.
Results: we assessed 26 people (3 women and 23 men). Mean age was 32 years (17-54 years). Pre-execution urine test was normal in all participants. Post-execution 18/26 (0.70) showed urinary anomalies; 6/26 (0.23) showed rust-colored urine; 8/26 (0.35) microhematuria, and 7/26 (030) proteinuria greater than 1 g/l. Mioglobine was negative in all cases.
People that showed rust-colored urine after an intense session, also presented high levels of lactate dehydrogenase hormone and total bilirrubine compared with people free of urinary anomalies. No significant differences of creatine phosphokinase plasmatic were seen.
Conclusions: data suggest that rust-colored urine emission is mainly due to extracorpuscular hemolysis induced by manual traumatisme and not caused by rabdomiolisis. Percussion players may develop ARI due to hemolysis.
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