Residual apical space following surgery for pneumothorax increases the risk of recurrence

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Abstract

Objective: Residual air spaces on chest radiographs after pneumothorax surgery are not uncommon. We aimed to study their incidence and impact on surgical outcomes. Methods: Four hundred and twenty-seven patients [283 men and 144 women with a median age of 31 (14-96) years] underwent surgery for pneumothorax from 1995 to 2005 in a single unit. Video-assisted thoracoscopy was used in 225 cases (53%). Outcomes were: duration of intercostal drainage and hospital stay, recurrence, re-operation and referral to chronic pain clinic. Results: Median duration of intercostal drainage and hospital stay were 5 and 6 days, respectively. We found a recurrence rate of 6.6% (n = 28), re-operation rate of 2.8% (n = 12) and need for referral to pain clinic of 7% (n = 30). In 129 patients (30%) a small residual apical space (RAS) was reported on chest radiograph prior to discharge. Hospital stay and duration of drainage were longer in these cases (p = 0.002 and 0.02, respectively). On multivariate analysis RAS on chest radiograph was associated with increased risk of recurrence [hazard ratio 3.1 (1.4-6.8 95% CI)] (p = 0.005); but no need for re-operation or referral to pain clinic. Re-operation was associated with VATS surgery (p = 0.001) and when no abnormalities were identified at operation (p = 0.04). Referral to pain clinic was more common after open surgery (p = 0.01). Discussion: The risk of recurrence after pneumothorax surgery is low. But the presence of a residual apical space on chest radiography after surgery increases it significantly. Recurrence may be due to the failure to achieve early pleural symphysis. © 2008 European Association for Cardio-Thoracic Surgery.

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Gaunt, A., Martin-Ucar, A. E., Beggs, L., Beggs, D., Black, E. A., & Duffy, J. P. (2008). Residual apical space following surgery for pneumothorax increases the risk of recurrence. European Journal of Cardio-Thoracic Surgery, 34(1), 169–173. https://doi.org/10.1016/j.ejcts.2008.03.049

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