體外震波碎石術是治療腎結石安全又廣為使用的機器，雖然腎臟包膜下血腫是很少見的併發症，但是一豆發生就須積極小心的處理，否則有失去腎臟的包險，本研究在十年間共遇到十例腎臟包膜下血腫的病例，其中有八例高血壓、四例尿路感染、二例糖尿病及一例消化性潰瘍的病史，本組病人並未有人死亡但有一例糖尿病病人合併尿路感染致發生腎周圍膿瘍而施行腎切除手術，由於在本研究中年齡超過五十歲及多發結石病人群中有較高的發生率，建議鄉追蹤時應特別注意此類病人。

Extracorporeal shock-wave lithotripsy (ESWL) is a safe and widespread modality for the treatment of renal stones. Although rarely used for treatment of subcapsular hematoma of the kidney, this procedure may sometimes be required in critical case for possible renal loss. This study investigated 10 subcapsular hematomas that were encountered during a 10-year period using ESWL treatment in patients with renal stones. This history revealed eight with hypertension, four with urinary tract infection (UTI), two with diabetes mellitus (DM) and 1 with peptic ulcer. None of the patients died. One Dm patient with coexisting UTI underwent nephrectomy due to the occurrence of perirenal abscess. Age older than 50 years and multiple stones might be risk fac-tors of the occurrence of perirenal hematoma after ESWL.(J Urol R.O.C., 10:164-167,1999)