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Single center comparison of laparoscopic cryoablation and CT-guided percutaneous cryoablation for renal tumors.

Abstract：

BACKGROUND AND PURPOSE: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. PATIENTS AND METHODS: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. RESULTS: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 < 0.001). Posterior tumors comprised 32.4% of LAP and 65.4% of PERC procedures (P = 0.01). Mean procedure time (minutes) was 165.7 for LAP and 106.6 for PERC procedures (P < 0.001). Hospital stay (days) was 2.6 for those undergoing LAP and 1.8 for those undergoing PERC procedures (P < 0.001). Both LAP patients (82.4%) and PERC patients (19.2%) needed postoperative narcotics (P < 0.001). Atelectasis developed in 70.6% of LAP patients and 34.6% of PERC patients (P = 0.005). Residual enhancement was seen in 11.5% of PERC patients and 2.9% of LAP patients (P = 0.192). Complications developed in 14.7% of LAP patients and 26.9% of PERC patients (P = 0.248). 1-year, 2-year, and 3-year disease-specific survival for the two groups was 100%. Tumor size > 4 cm and endophytic location were significantly associated with residual enhancement. CONCLUSIONS:LAP and PERC renal cryoablation have similar short-term outcomes. Significantly more anterior tumors were approached laparoscopically and significantly more posterior tumors were approached percutaneously. The PERC approach may offer advantages regarding hospital stay, narcotic need, and development of atelectasis. Longer-term data are needed to establish success of this approach.

journal_name

J Endourol

journal_title

Journal of endourology

authors

Derweesh IH,Malcolm JB,Diblasio CJ,Giem A,Rewcastle JC,Wake RW,Patterson AL,Gold R

doi

10.1089/end.2008.0196

subject

Has Abstract

pub_date

2008-11-01 00:00:00

pages

2461-7

issue

eissn

0892-7790

issn

1557-900X

journal_volume

pub_type

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Single center comparison of laparoscopic cryoablation and CT-guided percutaneous cryoablation for renal tumors.