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Superior vena cava resection in thoracic malignancies: does prosthetic replacement pose a higher risk?
Francesco Leo1, Roberto Bellini, Barbara Conti
1Thoracic Surgery Department, Istituto Nazionale dei Tumori, Via Venezian 1, 20100 Milan, Italy. francesco.leo@istitutotumori.mi.it
Summary
Superior vena cava (SVC) resection with polytetrafluoroethylene (PTFE) prosthetic replacement is safe. This SVC reconstruction method does not increase postoperative complications compared to other repair techniques.
Area of Science:
- Cardiovascular Surgery
- Thoracic Surgery
- Surgical Oncology
Background:
- Superior vena cava (SVC) resection necessitates reconstruction, with options including tangential resection, pericardial patch repair, and prosthetic replacement.
- Polytetrafluoroethylene (PTFE) prosthetic replacement may require altered surgical approaches, intraoperative SVC cross-clamping, and anticoagulation.
- The study investigates whether PTFE replacement impacts perioperative outcomes.
Purpose of the Study:
- To evaluate the perioperative outcomes of superior vena cava (SVC) reconstruction using polytetrafluoroethylene (PTFE) prostheses.
- To compare the morbidity and mortality rates between PTFE prosthetic replacement and other SVC repair methods.
Main Methods:
- A retrospective review of 72 consecutive SVC resections between 1998 and 2008.
- Complications were categorized (surgical, respiratory, cardiac, SVC thrombosis, nerve damage) and analyzed.
- Univariate and multivariate analyses were used to identify risk factors for postoperative complications.
Main Results:
- 28 patients underwent PTFE prosthetic replacement, while 44 had SVC repair (suture, stapling, or pericardial patch).
- Overall postoperative mortality was 2.8% (2 patients).
- Major complications, primarily respiratory failure, occurred in similar proportions in both groups (21.4% for PTFE vs. 15.9% for repair; p=0.54).
Conclusions:
- Complete prosthetic replacement of the SVC does not elevate overall postoperative morbidity.
- PTFE prosthetic replacement is a safe and viable option when other reconstruction techniques are insufficient for achieving tumor-free margins or adequate blood flow.