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Demographics, clinical characteristics, and recurrence rate of patients with primary spontaneous pneumothorax at a tertiary care center in Qatar
Introduction: Primary spontaneous pneumothorax (PSP) is a common medical emergency. Its treatment includes simple observation needle thoracentesis pleural catheter video-assisted thoracoscopy (VATS) and open surgery. We aimed to establish the demographic clinical characteristics and 12-month recurrence rate of patients with PSP in four hospitals of the Hamad Medical Corporation Qatar.
Materials and methods: We conducted a retrospective analysis of patients >14 years old who were admitted with PSP from January 1 2017 to December 31 2019. The patients were followed up for 12 months for the recurrence of PSP.
Results: Out of 246 patients enrolled in this study 223 (90.7%) were males and 23 (9.3%) were females. Their mean age was 29.1 ± 9.59 years and their mean body mass index (BMI) was 21.7 ± 4.22 kg/m2. Of these 123 (51.2%) patients were smokers. Chest pain was the most common presenting complaint (82.5%). A total of 59 (23.98%) patients had a small pneumothorax whereas 187 (76.01%) patients had a large pneumothorax.
Among the patients with small pneumothorax 16 (28.33%) were managed through observation alone 2 (3.33%) required needle aspiration 15 (25%) required pleural catheter insertion and 26 (44.06%) underwent surgical intervention for management. Out of 187 patients with large pneumothorax 16 (8.6%) were managed through observation 7 (3.76%) required needle aspiration 73 (38.1%) required pleural catheter insertion and 91 (48.6%) underwent surgery.
During the 12-month follow-up 58 patients were lost to follow-up and 5 patients (5/188; 2.66%) presented with a recurrence of PSP. Out of 108 patients who underwent VATS 2 (1.85%) had a recurrence of PSP.
Conclusion: PSP is more common in males than in females with a tendency for younger age onset. The recurrence rate of PSP in our study was 2.66%. Furthermore the recurrence rate in our patients who underwent VATS was 1.85%. Prospective studies are warranted to compare the success rates of different treatment interventions.