JOURNAL ARTICLE
Clinical Outcomes With Recurrence After Pleurectomy/Decortication for Malignant Pleural Mesothelioma.
Annals of Thoracic Surgery 2020 May
BACKGROUND: Most patients with malignant pleural mesothelioma experience recurrence after treatment. However no clinical studies have evaluated postrecurrence survival after pleurectomy/decortication for malignant pleural mesothelioma. This study aimed to clarify postrecurrence survival, treatment, prognostic factors, and recurrence pattern after pleurectomy/decortication.
METHODS: We conducted a retrospective cohort study of 90 patients who underwent neoadjuvant chemotherapy followed by pleurectomy/decortication at our hospital between September 2012 and December 2017. Survival and recurrence were calculated using the Kaplan-Meier method with the log-rank test. Clinical factors related to postrecurrence survival were assessed using multivariate analysis with the Cox proportional hazards model.
RESULTS: Of 90 patients, 57 (63.3%) developed recurrence. The 1- and 3-year recurrence-free survival rates were 69.7% and 34.0%, respectively (median recurrence-free survival time, 19.0 months). With regard to initial recurrence, 39 patients (68.4%) developed local recurrence, 6 (10.5%) developed distant recurrence, and 12 (21.1%) developed both local and distant recurrences. The 1-year postrecurrence survival rate was 59.5% (median post-recurrence survival time, 14.4 months). Forty-three patients (75.4%) underwent a postrecurrence treatment. Multivariate analysis revealed that postrecurrence treatment (hazard ratio, 0.2; 95% confidence interval, 0.07-0.55; P = .002), performance status 0 to 1 (hazard ratio, 0.24; 95% confidence interval, 0.08-0.76; P = .01), and disease-free interval more than 12 months (hazard ratio, 0.4; 95% confidence interval, 0.16-0.99; P = .04) were the independent, favorable, and significant prognostic factors of postrecurrence survival.
CONCLUSIONS: Postrecurrence survival after pleurectomy/decortication is acceptable, and postrecurrence treatment, performance status, and disease-free interval are important prognostic factors of postrecurrence survival.
METHODS: We conducted a retrospective cohort study of 90 patients who underwent neoadjuvant chemotherapy followed by pleurectomy/decortication at our hospital between September 2012 and December 2017. Survival and recurrence were calculated using the Kaplan-Meier method with the log-rank test. Clinical factors related to postrecurrence survival were assessed using multivariate analysis with the Cox proportional hazards model.
RESULTS: Of 90 patients, 57 (63.3%) developed recurrence. The 1- and 3-year recurrence-free survival rates were 69.7% and 34.0%, respectively (median recurrence-free survival time, 19.0 months). With regard to initial recurrence, 39 patients (68.4%) developed local recurrence, 6 (10.5%) developed distant recurrence, and 12 (21.1%) developed both local and distant recurrences. The 1-year postrecurrence survival rate was 59.5% (median post-recurrence survival time, 14.4 months). Forty-three patients (75.4%) underwent a postrecurrence treatment. Multivariate analysis revealed that postrecurrence treatment (hazard ratio, 0.2; 95% confidence interval, 0.07-0.55; P = .002), performance status 0 to 1 (hazard ratio, 0.24; 95% confidence interval, 0.08-0.76; P = .01), and disease-free interval more than 12 months (hazard ratio, 0.4; 95% confidence interval, 0.16-0.99; P = .04) were the independent, favorable, and significant prognostic factors of postrecurrence survival.
CONCLUSIONS: Postrecurrence survival after pleurectomy/decortication is acceptable, and postrecurrence treatment, performance status, and disease-free interval are important prognostic factors of postrecurrence survival.
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