Incidence and risk factors for recurrent primary spontaneous pneumothorax after video-assisted thoracoscopic surgery: a systematic review and meta-analysis

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Abstract
Background: The incidence and risk factors for recurrent primary spontaneous pneumothorax (PSP) after video-assisted thoracoscopic surgery (VATS) remain controversial. A systematic review and meta-analysis were conducted to determine the incidence and risk factors for recurrence of PSP after VATS. Methods: A systematic search of PubMed, Web of Science, Embase, and Cochrane Library databases was conducted to identify studies that reported the rate and risk factors for recurrence of PSP after VATS published up to December 2023. The pooled recurrence rate and odds ratio (OR) with 95% confidence interval (CI) were calculated using a random-effects model. In addition, risk factors were similarly included in the meta-analysis, and sources of heterogeneity were explored using meta-regression analysis. Results: A total of 72 studies involving 23,531 patients were included in the meta-analysis of recurrence. The pooled recurrence rate of PSP after VATS was 10% (95% CI: 8–12%). Male sex (OR: 0.61; 95% CI: 0.41–0.92; P=0.02), younger age [mean difference (MD): −2.01; 95% CI: −2.57 to −1.45; PConclusions: The recurrence rate of PSP after VATS remains high. Healthcare professionals should focus on factors, including sex, age, weight, BMI, and history of contralateral pneumothorax, that may influence recurrence.

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