• Thordis Magnadottir, Leon Arnar Heitmann, Tinna Harper Arnardottir, Tomas Thor Kristjansson, Per Martin Silverborn, Martin Ingi Sigurdsson, and Tomas Gudbjartsson.
• Departments of Cardiothoracic Surgery, Landspitali University Hospital, Reykjavik, Iceland.
• Laeknabladid. 2022 Jun 1; 108 (6): 299-305.

BackgroundPrimary spontaneous pneumothorax (PSP) is a common disease where surgery is indicated for persistant air leak or recurrent pneumothorax. We studied the outcomes of PSP-surgery over a 28 year period in a whole nation.Materials And MethodsA retrospective study on 386 patients (median age 24 years, 78% males) that underwent 430 PSP surgeries at Landspitali University Hospital 1991-2018. Annual incidence of the procedure was calculated and previous medical history, indication and type of surgery, complications and length of hospital stay were registered. Patients in four 7 year periods were compared, recurrent pneumothoraces requiring reoperation (median follow-up 16 years) registered and predictors of reoperation identified with logistic regression.ResultsAnnually 14.5 PSP surgeries (median, range 9-27) were performed; the incidence decreasing by 2.9% per year on average. Every other patient smoked and 77% of surgeries were performed with video assisted thoracocopic surgery (VATS). The most common early complications (p<30 days from surgery) were persistent airleak (17%), pneumonia (2%) and empyema (0,5%). No patient died within 30 days from surgery. Reoperation for recurrent pneumothorax was performed on 27 patients; 24 following VATS (7%), median time from the primary surgery being 16 months. Logistic regression showed that younger patients were more likely to require reoperation for recurrent pneumothorax.ConclusionsSurgical treament for PSP is safe and major early complications rare. The rate of recurrent pneumothorax requiring surgery was 6%, which is similar to other studies. For unknown reasons the incidence of PSP surgery declined, but future research has to answer if it is linked to decreased smoking in the Icelandic population.

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