Risk factors for recurrent spontaneous pneumothorax
The study suggests that the risk of recurrence after spontaneous pneumothorax is 26.2%. The greatest risk of recurrence is within 2 years. Age <35 and prior tube thoracostomy are at the highest risk for recurrence. Mechanical pleurodesis associated with the greatest reduction in recurrence.

Researchers sought to determine the rate and risk factors of recurrent spontaneous pneumothorax in a diverse population.

A cohort study using the California Public Discharge Data file was conducted. Researchers identified patients with first-time spontaneous pneumothorax. The primary outcome was recurrent pneumothorax.

- Among 14,609 patients with a first-time episode of spontaneous pneumothorax, 26.2% developed a recurrence.

- Risk factors included age <35, Asian race, and tube thoracostomy.

- Mechancial pleurodesis was superior to chemical pleurodesis in reducing recurrence risk.

The American Journal of Surgery
Source: https://doi.org/10.1016/j.amjsurg.2021.05.017
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