Laparoscopic Renal Cryoablation Procedure

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Laparoscopic Renal Cryoablation Procedure
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Renal Biopsy
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Freeze Test Each Probe

• To ensure each
• CryoProbe will function properly they must be
  tested in a basin of sterile water or saline
  before placement in patient

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Laparoscopic Renal Cryoablation Intraoperative
Real Time Ultrasound

• Dedicated articulating laparoscopic transducer
• Place transducer crystal on kidney surface
  opposite lesion
• Survey treatment progress through normal renal
  tissue

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Cryo Probe Insertion
CryoProbeShaft
Tip of CryoProbe
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Laparoscopic Cryoablation Ultrasound Monitoring

• Survey kidney and assessment of tumor size
• Ultrasound visualization across the kidney is
  essential to monitor the full extent of iceball
• Monitor in real-time to confirm total coverage of
  lesion margin

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Iceball Images
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Iceball Images
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Ultrasound Images
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Ice Ball Formation
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Laparoscopic Renal Cryoablation Post
Cryoablation Follow-up

• MRI/CT- post-op day 1
• MRI/CT- 3 month
• MRI/CT biopsy - 6 month
• MRI/CT CXR - annually
• 6 month follow-up biopsy all negative, n18

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Laparoscopic Renal Cryoablation Post-operative
MRI Imaging
Preoperative
24 hours post-op
3 months post-op
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Laparoscopic Renal Cryoablation

• Minimal complications
• Renal function maintained
• No intraoperative complications
• Laparoscopic (gill)
• 1.8 day hospital stay
• 2.9 h surgery time
• 66.8 ml blood loss

Zegel HG, J Ultrasound Med 17 571-6 1998, Gill
IS Urology 2000 56 748-53, Rodriguez Urology
2000 55 25-30.