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Superior vena cava prosthetic replacement for non-small cell lung cancer: is it worthwhile?
Josephine Chenesseau1, Delphine Mitilian1, Gaurav Sharma1
1Department of Thoracic and Vascular Surgery, Marie Lannelongue Hospital and Paris Saclay University, Le Plessis-Robinson, France.
Objectives:
Direct involvement of the superior vena cava (SVC) by non-small cell lung cancer (NSCLC) requires en-bloc tumour resection with complete vascular clamping and prosthetic replacement. We report the outcomes of this highly demanding procedure in the largest patient cohort to date.
Methods:
We searched our institution's database for patients who underwent complete en-bloc resection of NSCLC invading the SVC followed by prosthetic SVC replacement, between 1980 and 2018. Patients with cN2, cN3 or distant metastases were not eligible.
Results:
We identified 48 patients (38 males, 10 females; mean age of 57 years; tumour size, 1.9-17 cm). Neoadjuvant therapy was administered to 17 and adjuvant therapy to 31 patients. R0 resection was achieved in 41 (85%) patients; lymph node involvement was pN0 in 8, pN1 in 23, pN2 in 14 and pN3 in 3 patients. Five patients died within 30 days of surgery. Right pneumonectomy was significantly associated with postoperative death (P = 0.02). Postoperative complications developed in 13 other patients. No neurologic events related to SVC clamping occurred. Graft thrombosis developed in 2 patients. Median survival was 24 months; 3-, 5- and 10-year survival rates were 45%, 40% and 35%, respectively; and corresponding disease-free survival rates were 37%, 37% and 30%, respectively. By univariable analysis, only margin-free (R0) resection was associated with better survival (P = 0.02).
Conclusions:
In highly selected patients with NSCLC involving the SVC, mortality is acceptable after complete en-bloc resection and prosthetic replacement done in an expert centre. SVC involvement should not preclude consideration of curative resection in selected patients.
