Lymphatic complications in renal transplantation

Area of Science:

• Nephrology
• Transplantation Surgery
• Urology

Background:

• Lymphocele and lymphatic fistulae are recognized complications following renal transplantation.
• These conditions occur in approximately 8% of renal transplant recipients.
• Understanding their pathogenesis is crucial for effective management.

Purpose of the Study:

• To discuss the origin and pathogenesis of lymph collection and augmented lymph flow after renal transplantation.
• To highlight the importance of differentiating these lymphatic complications from other post-transplant issues.
• To review and recommend management strategies for lymphocele and lymphatic fistulae.

Main Methods:

• Review of 248 renal transplant cases to determine incidence.
• Discussion of the etiology and pathophysiology of lymph accumulation.
• Evaluation of diagnostic challenges, particularly differentiating from urinary fistulae and rejection.
• Assessment of treatment outcomes for various drainage techniques.

Main Results:

• The incidence of lymphocele and lymphatic fistulae in the series was 8%.
• Differential diagnosis with urinary fistula, acute rejection, and phlebothrombosis is critical.
• Percutaneous closed aspiration is presented as the most successful initial treatment.
• Internal marsupialization, with omentoplasty for renal-origin leaks, is the preferred definitive treatment when aspiration fails.

Conclusions:

• Lymphocele and lymphatic fistulae are significant but manageable complications in renal transplantation.
• Accurate diagnosis is essential to guide appropriate therapeutic interventions.
• Percutaneous aspiration followed by internal marsupialization offers effective management for these lymphatic complications.