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"Cryoablation has demonstrated therapeutic effectiveness for selected renal tumors. We compared our perioperative and short-term outcomes of laparoscopic (LAP) v percutaneous (PERC) renal cryoablation," scientists in the United States report (see also Kidneys).
"Thirty-four patients (18 men/16 women) underwent a LAP and 26 patients (19 men/7 women) underwent a PERC procedure between September1998 and January 2007. LAP cryoablation was performed transperitoneally with ultrasonographic monitoring. PERC cryoablation was performed with CT guidance. Follow-up imaging was obtained at regular intervals. Mean follow-up was 25 months. Average age (years) was 67.0 for the LAP and 69.7 for the PERC procedure (P = 0.307). Mean body mass index (kg/m(2)) was 29.8 for those undergoing LAP and 28.7 for those undergoing PERC procedures (P = 0.543). Mean tumor size (cm) was 2.9 for LAP patients and 3.1 for PERC patients (P = 0.432). Anterior tumors comprised 61.7% of LAP and 15.4% of PERC procedures (P
The researchers concluded: "Longer-term data are needed to establish success of this approach."
Derweesh and colleagues published their study in the Journal of Endourology (Single Center Comparison of Laparoscopic Cryoablation and CT-Guided Percutaneous Cryoablation for Renal Tumors. Journal of Endourology, 2008;22(11):2461-2467).
For additional information, contact I.H. Derweesh, University of Tennessee, Center Health Science, Dept. of Urology, 910 Madison Avenue, Room 412, Memphis, TN 38163, ...