Perirenal hematomas caused by SWL with EDAP LT-01 lithotripter.
A total of 419 calculi in the upper urinary tract of 402 patients were treated by SWL with the EDAP LT-01 lithotripter from July 1988 to September 1989. Subcapsular hematomas resulted in 17 kidneys of 16 patients, an incidence of 4.1%. On CT scan, fractures with subcapsular hematomas were observed in nine kidneys, and a retroperitoneal hematoma was observed in one patient. There was no significant difference in stone location and size, grade of hydronephrosis, number of shock waves, applied energy, or post-treatment fever between the groups with and without hematomas. However, the hematoma group revealed significantly (P < 0.01) higher incidences of pretreatment hypertension (> 160/95 mm Hg) and use of antiplatelet agents. It is difficult to detect some disorders of blood coagulation in ordinary laboratory studies in patients receiving low dosages of antiplatelet agents; and many drugs including analgesic and anti-inflammatory agents, calcium antagonists, coronary vasodilators, antiplatelet agents, beta-blockers, and lipid-regulating agents have antiplatelet actions. Therefore, particular care should be taken in SWL when a patient is using those drugs.
Ueda
S
S
Department of Urology, Kurume University School of Medicine, Japan.
Matsuoka
K
K
Yamashita
T
T
Kunimi
H
H
Noda
S
S
Eto
K
K
D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D005260:Female; D006406:Hematoma / Q000209:etiology*; D006801:Humans; D007674:Kidney Diseases / Q000209:etiology*; D008096:Lithotripsy / Q000009:adverse effects* / Q000295:instrumentation; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D014545:Urinary Calculi / Q000628:therapy*