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Partial laparoscopic nephrectomy using monopolar saline-coupled radiofrequency device: animal model and tissue effect
Jason Sprunger1, S Duke Herrell
1Department of Urologic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee 37232-2765, USA.
Journal of Endourology
|May 25, 2005
Summary
The TissueLink Floating Ball device offers effective hemostasis and parenchymal resection for laparoscopic partial nephrectomy (LPN). This study found it valuable for LPN, enabling deep resection with good control.
Area of Science:
- Urology
- Minimally Invasive Surgery
- Surgical Technology
Background:
- Optimal tools for laparoscopic partial nephrectomy (LPN) require deep lesion resection, hemostasis, and precise visualization.
- The TissueLink Floating Ball was investigated as a potential simple tool for LPN.
Purpose of the Study:
- To evaluate the efficacy of the TissueLink Floating Ball for laparoscopic partial nephrectomy (LPN).
- To assess its capabilities in achieving hemostasis and managing deep parenchymal resection.
Main Methods:
- Ten pigs underwent LPN using the TissueLink device for hemostasis.
- Operative time, blood loss, and specimen characteristics were recorded.
- Postoperative urograms and subsequent open partial nephrectomy with temperature monitoring were performed.
Main Results:
- LPNs were completed without complications, averaging 148 minutes with 49 mL estimated blood loss.
- Postoperative urograms showed no urinary extravasation or hydronephrosis.
- Pathologic examination revealed tissue alterations up to 8 mm from the treated surface and localized urine leaks when the collecting system was entered.
Conclusions:
- The saline-cooled monopolar radiofrequency dissector (TissueLink) is a valuable adjunct for LPN.
- It provides excellent hemostatic control, allowing resection of up to 40% of renal parenchyma.
- A successful technique for deep parenchymal resection using this device was developed.