[Surgical Outcome of Sublobar Resection in High-risk Patients with Non-small Cell Lung Cancer]. 2019

Hiroyuki Nitanda, and Ryo Taguchi, and Akitoshi Yanagihara, and Hirozo Sakaguchi, and Hironori Ishida, and Koichi Kaneko
Department of General Thoracic Surgery, Saitama Medical University International Medical Center, Hidaka, Japan.

OBJECTIVE Pulmonary lobectomy is the standard surgical procedure for resectable non-small cell lung cancer (NSCLC), while sublobar resection is an important surgical alternative for high-risk patients with comorbidities. We evaluated the treatment outcome and prognostic factors of sublobar resection in high-risk patients with NSCLC. METHODS Eighty three high-risk patients who underwent compromised sublobar resection for clinical-N0 NSCLC with a solid appearance were retrospectively reviewed. A total of 47 wedge resections and 36 segmentectomies performed. RESULTS Poor pulmonary function and synchronous or metachronous multiple lung cancer were found in 56.7% and 20.5% of patients respectively, all requiring sublobar resection. There were 21 instances of tumor recurrence and 24 deaths during a mean follow-up of 1,500 days. There was no local recurrence in the segmentectomy group. The 3-year recurrence free survival (RFS) and overall survival (OS) were 72.6% and 73.8% respectively. A multivariate analysis indicated that resection type and lymphatic invasion were independent prognostic factors for RFS. In the wedge resection group, a ratio of surgical margin to clinical tumor size greater than 1 (MT ratio≥1) was an independent prognostic factor for RFS( 87.1%,p=0.001). CONCLUSIONS Segmentectomy leads to a favorable prognosis. MT ratio was independently associated with a longer RFS in the wedge resection group.

UI MeSH Term Description Entries
D008175 Lung Neoplasms Tumors or cancer of the LUNG. Cancer of Lung,Lung Cancer,Pulmonary Cancer,Pulmonary Neoplasms,Cancer of the Lung,Neoplasms, Lung,Neoplasms, Pulmonary,Cancer, Lung,Cancer, Pulmonary,Cancers, Lung,Cancers, Pulmonary,Lung Cancers,Lung Neoplasm,Neoplasm, Lung,Neoplasm, Pulmonary,Pulmonary Cancers,Pulmonary Neoplasm
D009364 Neoplasm Recurrence, Local The local recurrence of a neoplasm following treatment. It arises from microscopic cells of the original neoplasm that have escaped therapeutic intervention and later become clinically visible at the original site. Local Neoplasm Recurrence,Local Neoplasm Recurrences,Locoregional Neoplasm Recurrence,Neoplasm Recurrence, Locoregional,Neoplasm Recurrences, Local,Recurrence, Local Neoplasm,Recurrence, Locoregional Neoplasm,Recurrences, Local Neoplasm,Locoregional Neoplasm Recurrences,Neoplasm Recurrences, Locoregional,Recurrences, Locoregional Neoplasm
D009367 Neoplasm Staging Methods which attempt to express in replicable terms the extent of the neoplasm in the patient. Cancer Staging,Staging, Neoplasm,Tumor Staging,TNM Classification,TNM Staging,TNM Staging System,Classification, TNM,Classifications, TNM,Staging System, TNM,Staging Systems, TNM,Staging, Cancer,Staging, TNM,Staging, Tumor,System, TNM Staging,Systems, TNM Staging,TNM Classifications,TNM Staging Systems
D011013 Pneumonectomy The excision of lung tissue including partial or total lung lobectomy. Bronchoscopic Lung Volume Reduction,Endoscopic Lung Volume Reduction,Lung Volume Reduction,Lung Volume Reduction Surgery,Partial Pneumonectomy,Partial Pneumonectomies,Pneumonectomies,Pneumonectomy, Partial,Reduction, Lung Volume,Volume Reduction, Lung
D011379 Prognosis A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations. Prognostic Factor,Prognostic Factors,Factor, Prognostic,Factors, Prognostic,Prognoses
D002289 Carcinoma, Non-Small-Cell Lung A heterogeneous aggregate of at least three distinct histological types of lung cancer, including SQUAMOUS CELL CARCINOMA; ADENOCARCINOMA; and LARGE CELL CARCINOMA. They are dealt with collectively because of their shared treatment strategy. Carcinoma, Non-Small Cell Lung,Non-Small Cell Lung Cancer,Non-Small Cell Lung Carcinoma,Non-Small-Cell Lung Carcinoma,Nonsmall Cell Lung Cancer,Carcinoma, Non Small Cell Lung,Carcinomas, Non-Small-Cell Lung,Lung Carcinoma, Non-Small-Cell,Lung Carcinomas, Non-Small-Cell,Non Small Cell Lung Carcinoma,Non-Small-Cell Lung Carcinomas
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012189 Retrospective Studies Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. Retrospective Study,Studies, Retrospective,Study, Retrospective
D012306 Risk The probability that an event will occur. It encompasses a variety of measures of the probability of a generally unfavorable outcome. Relative Risk,Relative Risks,Risk, Relative,Risks,Risks, Relative
D015999 Multivariate Analysis A set of techniques used when variation in several variables are studied simultaneously. In statistics, multivariate analysis is interpreted as any analytic method that allows simultaneous study of two or more dependent variables. Analysis, Multivariate,Multivariate Analyses

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