title: Echoguided treatment of simple renal cysts: our experience from 1995 to 2010.
abstract: The simple renal cysts are the most frequent lesions of kidney in adults. Approximately 30% of subjects older than 70 years presents a simple renal cysts. It is well accepted that a simple renal cyst without symptoms does not require any treatment.
  
  
  OBJECTIVE
  Evaluate the efficacy of the echoguided treatment of simple renal cysts with a single sclerotherapy.
  
  
  METHODS
  Since 1995 to March 2010 in our clinic 329 patients underwent percutaneous drainages of simple renal cysts. In 56 cases (17% of patients) it was a simple aspiration, in 69 cases (21%) a drainage was placed for 24 hour continuous draining and in 204 cases (62%) lesions were treated by sclerotherapy. After aspiration of fluid we injected inside the cyst 99% ethanol in the amount equal to 30% of aspirated volume and never exceeding 60 ml. After 40 minutes we aspirated ethanol and removed the drainage.
  
  
  RESULTS
  The outcome was considered good if the size of the cyst was less of 50% of the primary size. Percutaneous drainage with sclerotherapy showed a success rate of almost 100% using 99% ethanol. However, this method is not completely free from complications.
  
  
  CONCLUSIONS
  The long-term results and the mini-invasive modality of treatment without hospedalization are the most important advantages of this procedure. Furthermore our experience showed a good success rate with a single sclerotherapy with benefit to the patient and lower costs of procedure.
authors.affiliation: Department of Emergency and Organ Transplantation - Urology I, University of Bari "Aldo Moro", Italy. martino@urologia.uniba.it
authors.forename: Pasquale
authors.initials: P
authors.lastname: Martino
authors.forename: Silvano
authors.initials: S
authors.lastname: Palazzo
authors.forename: Vincenzo
authors.initials: V
authors.lastname: Crudele
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Benedetto
authors.forename: Michele
authors.initials: M
authors.lastname: Tedeschi
authors.forename: Carlo
authors.initials: C
authors.lastname: Bettocchi
authors.forename: Pasquale
authors.initials: P
authors.lastname: Ditonno
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Lucarelli
authors.forename: Francesco Paolo
authors.initials: FP
authors.lastname: Selvaggi
mesh_terms: D006801:Humans; D052177:Kidney Diseases, Cystic / Q000000981:diagnostic imaging* / Q000628:therapy*; D013997:Time Factors; D018084:Ultrasonography, Interventional