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Purpose: This large-scale nationwide population-based study aimed to determine the recurrence rate and risk factors for recurrence after video-assisted thoracoscopic surgery (VATS) for primary spontaneous pneumothorax (PSP). Methods: This retrospective study used data from the Taiwan National Health Insurance Database to identify individuals who underwent VATS for PSP from 2007 to 2014. All patients were followed up until December 31, 2017. Study variables included demographic characteristics, intensive care unit admission, lung resection status, use of non-steroidal anti-inflammatory drugs (NSAIDs), and hospital level. The primary outcome was 1-year recurrence, and the secondary outcomes were the 1-year rate of reintervention for recurrence and overall recurrence rate. Results: During the study period, 6654 patients underwent VATS for PSP (average age: 23.2 years, 89.1% male), including 910 patients (13.7%) who experienced recurrence within 1 year and 531 patients (8.0%) who required reintervention within 1 year. The overall recurrence rate was 24.8%, with an average follow-up time of 6.7 years. Age ≤18 years and the use of NSAIDs, especially ketorolac, were significant risk factors for 1-year recurrence and overall recurrence. Younger age was a risk factor for 1-year reintervention. In subgroup analysis, NSAID use was a significant risk factor for 1-year recurrence, 1-year reintervention, and overall recurrence in pediatric patients but not in adult patients. Conclusions: In Taiwan, the 1-year recurrence rate was 13.7% after VATS for PSP. Younger age and the use of NSAIDs, especially ketorolac, were significant risk factors for short- and long-term recurrence after VATS for PSP. |
