[Extracorporeal shock wave lithotripsy and recurrent urolithiasis]

Changes in concentrations of total thyroxine (T4) and triiodothyronine (T3) in blood plasma, blood coagulation and prothrombin index (PI) 9 days after exposure to extracorporeal shock-wave lithotripsy (ESWL) were studied in patients with urolithiasis. Urolithiasis patients with chronic pyelonephritis running with non-severe renal pain had often elevated concentrations of T3, T4 and blood coagulation. On day 9 after ESWL plasma concentration of T3 and coagulation decreased while T4 concentration and PI rose. The analysis of 4-year follow-up after ESWL demonstrates that high levels of T4 and PI on day 9 after ESWL may contribute to development of recurrent urolithiasis.