Despite advances, malignant pleural mesothelioma (MPM) remains a challenging disease in terms of diagnosis, treatment, and overall management. Herein, we analyzed, in a large-scale single-center cohort, the characteristics and perioperative course of patients undergoing surgical diagnosis of MPM. We identified a total of 514 consecutive patients, 71.4% male and 28.6% female, with mean age 71.3 +/− 13.6 years. Most exhibited pleural, respiratory, or general symptoms and American Society of Anesthesiologists (ASA) score was ≥3 in 68.3% of cases. Thoracoscopy was the most frequent approach (92.0%) and short open thoracotomy was performed in the remaining patients. Pleurodesis was simultaneously performed in 74.3% of cases. Diagnostic failure led to redo surgery in 3.7% of patients. Non-epithelioid histology was found in 19.5% of MPMs and was significantly more frequent in right-sided MPM (p = 0.04), and in patients without history of cancer (p = 0.03), or pleural nodules at thoracoscopy (p = 0.01). Minor only or major complications occurred in respectively 7.8% and 3.6% of cases. They were more frequent in patients ≥ 70 years (p = 0.05) and Performance Status > 2 (p = 0.05). The mean hospital stay was 7.5 days. The 30-day and 90-day early mortality rates were 2.3% and 6.4%, respectively. Surgical diagnosis of MPM is a reliable procedure but is associated with significant morbidity and hospital-stay duration.
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