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01.03.2018 | Original Article | Ausgabe 3/2018

Surgery Today 3/2018

The outcome and risk factors for recurrence and extended hospitalization of secondary spontaneous pneumothorax

Zeitschrift:
Surgery Today > Ausgabe 3/2018
Autoren:
Yoshitaro Saito, Yohei Suzuki, Ryo Demura, Hideki Kawai

Abstract

Purpose

Secondary spontaneous pneumothorax (SSP) is difficult to treat by itself and due to its association with serious underlying diseases. It has a high rate of recurrence and often requires extended hospitalization. Therefore, we evaluated the outcome and risk factors associated with recurrence and extended hospitalization.

Methods

We retrospectively examined 61 patients with SSP, and evaluated the patients’ characteristics, underlying diseases, introduction of home oxygen therapy, Brinkman index, and X-ray imaging findings to determine the risk factors for recurrence and extended hospitalization.

Results

There were 28 patients (46.0%) with chronic obstructive pulmonary disease, 8 (13.1%) with interstitial pneumonia, 16 (26.2%) with massive emphysema, and 9 (14.8%) with other diseases. Adhesion and mediastinal shift visualized by X-ray imaging were observed in 37 (37.9%) and 25 patients (40.1%), respectively. Recurrence occurred in 25 patients (40.9%) and the average hospitalization duration was 14.5 days (±11.2). A multivariate analysis showed that adhesion on X-ray imaging was a significant risk factor for recurrence (odds ratio 4.90, 95% confidence interval 1.38–21.44) and mediastinal shift on X-ray imaging was a significant risk factor for extended hospitalization (odds ratio 6.05, 95% confidence interval 1.44–31.06).

Conclusions

Findings from X-ray imaging, and not underlying diseases, are risk factors for recurrence and extended hospitalization.

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