Safety and feasibility of radiofrequency ablation for treatment of Bosniak IV renal cysts
Int. braz. j. urol
;
42(3): 456-463, tab, graf
Article
in English
| LILACS
| ID: lil-785731
ABSTRACT
ABSTRACT Purpose To describe our initial experience with radiofrequency ablation (RFA) of Bosniak IV renal cysts. Materials and Methods From 2010 to 2014, 154 renal tumor cases were treated with percutaneous thermal ablation, of which 10 cases (6.4%) from nine patients were complex renal cysts and were treated with radiofrequency ablation. Results All complex cysts were classified as Bosniak IV (four women and five men; mean age 63.6 yrs, range 33–83 years). One patient had a single kidney. Lesion size ranged from 1.5 to 4.1cm (mean 2.5cm) and biopsy was performed on four cysts immediately before the procedure, all of which were malignant (two clear cell and two papillary carcinoma). Mean volume reduction of complex cysts was 25% (range 10–40%). No patients required retreatment with RFA and no immediate or late complications were observed. The follow-up of Bosniak IV cysts had a median of 27 months (interquartile range [IQR], 23 to 38) and no recurrence or significant loss of renal function were observed. Conclusions Mid-term follow-up of the cases in our database suggests that image-guided percutaneous RFA can treat Bosniak IV cysts with very low complication rates and satisfactorily maintain renal function.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Catheter Ablation
/
Kidney Diseases, Cystic
Type of study:
Etiology study
/
Evaluation studies
/
Observational study
Limits:
Adult
/
Aged
/
Aged80
/
Female
/
Humans
/
Male
Language:
English
Journal:
Int. braz. j. urol
Journal subject:
Urology
Year:
2016
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade de São Paulo/BR
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