Surgical management strategy for leiomyosarcoma of Zone I-II inferior vena cava: A case series.

Objectives: Leiomyosarcoma of inferior vena cava (IVC) is a rare clinical entity with severe vascular involvement. Surgical management of leiomyosarcoma is still challenging.

Methods: This a retrospective study of consecutive patients referred to our hospital from January 2017 to June 2019. Depending on the anatomical site of affected IVC, leiomyosarcomas were categorized into zone I-II. The clinical data including baseline information, surgical parameters, peri-operative management, short- and mid-term outcomes were observed.

Results: Four patients with leiomyosarcoma of zone I-III underwent radical resection without intraoperative mortality. Prosthetic grafts were interpositioned in all patients to instruct vena cava. Renal vein reconstruction was perfumed in two patients due to involvement to renal veins. Median blood loss was 450 mL (200-600 mL), median operative time was 215 minutes (150-240 minutes). No Clavien-Dindo IIIa or higher complication was observed. No organ dysfunction and recurrence were observed with median follow-up of 25.5 months.

Conclusions: Curative resection of zone I-II leiomyosarcoma is associated with longer survival in selected cases, en-bloc resection with complex vascular reconstruction could be considered.