Complete radical nephrectomy and vena caval thrombectomy during circulatory arrest

Area of Science:

• Urology
• Oncology
• Cardiovascular Surgery

Background:

• Renal carcinoma with vena caval tumor thrombus presents surgical challenges.
• Hypothermic circulatory arrest (HCA) is used for complex surgeries.
• Minimizing risks like tumor embolization is crucial.

Purpose of the Study:

• To present a modified radical nephrectomy and vena caval tumor thrombectomy technique.
• To evaluate the safety and efficacy of this modified procedure under HCA.
• To reduce the risk of tumor fragmentation and embolization.

Main Methods:

• A modified radical nephrectomy and vena caval embolectomy were performed.
• The procedure was conducted during HCA in 16 consecutive patients.
• Data were compared to a previous series using conventional techniques.

Main Results:

• The average HCA time increased by 6 minutes.
• Tumor manipulation before HCA was eliminated, minimizing embolization risk.
• No significant differences in blood loss or complications were observed compared to conventional methods.

Conclusions:

• Radical nephrectomy with vena caval embolectomy during HCA is safe.
• This modified approach increases procedural safety.
• The technique does not lead to significant additional morbidity.