Laparoscopic Partial Nephrectomy with a Remotely Activated Bulldog Clamp in a Pig Model.

Area of Science:

• Urology
• Surgical Innovation
• Medical Devices

Background:

• Minimizing warm ischemia time (WIT) is crucial in laparoscopic partial nephrectomy (LPN) to preserve renal function.
• Standard bulldog vascular clamps require manual application and removal, potentially prolonging WIT.
• Developing innovative tools to improve efficiency and safety in LPN is an ongoing area of surgical research.

Purpose of the Study:

• To evaluate the effectiveness, convenience, and safety of a novel remotely activated bulldog clamp for LPN.
• To compare the performance of the new device against the standard bulldog vascular clamp in a porcine model.

Main Methods:

• A comparative study was conducted using a pig model with fifteen cases of LPN.
• Eight cases utilized the remotely activated bulldog clamp (test group), while seven used the standard bulldog vascular clamp (control group).
• Key metrics including operative time, blood loss, and WIT were measured and compared between groups.

Main Results:

• Operative time and blood loss showed no significant difference between the test and control groups (p < 0.05).
• The mean WIT in the test group was significantly lower (19.0 ± 3.42 minutes) compared to the control group (31.54 ± 5.23 minutes) (p < 0.05).
• On-demand clamping with the new device facilitated easier and potentially faster renal artery control.

Conclusions:

• The remotely activated bulldog clamp is effective and safe for use in LPN.
• The device simplifies renal artery clamping and unclamping, contributing to reduced WIT.
• This innovation holds promise for improving outcomes in partial nephrectomy procedures.