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Does the carinal involvement have the same surgical outcome as the main bronchus involvement in patients with
Volkan Erdogu1, Necati Citak2, Celal Bugra Sezen3
1Department of Thoracic Surgery, Yedikule Chest Diseases, Thoracic Surgery Training and Research Hospital, SUAM Zeytinburnu/İST, 34188, Istanbul, Turkey. verdogu@gmail.com.
Objective:
Carinal and main bronchus involvement were compared in terms of the survival of patients with N0-1 non-small cell lung cancer (NSCLC).
Methods:
Sixty-six NSCLC patients who underwent complete surgical carinal resection/reconstruction (Carina group) and complete resection because of main bronchus involvement (Main Bronchus group) between 2006 and 2016 were retrospectively analyzed. The Carina group included 30 patients and the Main Bronchus group included 36. In the Carina group, conditions other than carinal involvement that rendered patients pathological (p) T4, and in the Main Bronchus group, conditions that would upstage the pT status from pT2 were excluded. Patients with mediastinal lymph node metastases were excluded. Thus, an isolated main bronchial invasion and isolated carinal invasion patient population was tried to be obtained.
Results:
The overall 5-year survival rate was 49.4% (median 61.5 ± 19.9 months). The 5-year survival rates of patients in the Carina group was 49.2% (median 63.3 months), and that of patients in the Main Bronchus group was 46.4% (median 55.9 months). The difference between survival rates was not statistically significant (p = 0.761). The survival rates of pN0 and pN1 patients also did not differ significantly (63.2% vs. 45.5%, p = 0.207). Recurrence was significantly more common in the Main Bronchus group than the Carina group (28.1% vs. 7.1%; p = 0.04).
Conclusions:
Isolated carinal invasion had a comparable outcome to isolated main bronchus invasion in pN0-1 patients with NSCLC who are undergoing anatomical surgical resection.
