Pneumothorax is the presence of abnormal air in the intrapleural space that results in lung collapse and are mostly treated with simple interventions such as chest tube thoracotomy. A long-term concern with chest tube clamping versus no chest tube clamping is the possibility of recurrence of pneumothorax
OBJECTIVES: The objective of this study is to determine the incidence and association of factors of the recurrence of pneumothorax, hemothorax and its combination among trauma patients with unclamped chest tube
METHODS: This is a retrospective case cohort study done in the Department of General Surgery of Corazon Locsin Montelibano Memorial Regiona Hospital (CLMMRH). Data of participants from years 2013 to 2015 were collected from Medical Records and categorical data were expressed as frequencies and percentages, while Chi-square tests at p < 0.05 were used in determining the association between the demographic profile and their incidence.
RESULTS: There were a total of four hundred twenty-six (426) trauma patient who had unclamped chest tubes. Results showed that most participants with pneumothorax (n=219 or 94%), hemothorax (n=127 or 95%), and combination of both (n=59 or 88%) were males. Hence from this, there were eighteen (18 or 4.2%) who had recurrence of the said conditions and blunt chest trauma (50%), gunshot wound (22%), and stabwound (28%) were the most common mode of injury. Though the recorded recurrence in this case were few, patients who expired were not counted. Analysis of the demographic factors revealed that recurrence was not related to the patients' age, sex, nor to its mode of injury. Recurrence was again more common among men (78%) of those who had pneumothorax (39%). Accordingly, various studies have shown that risk of recurrence is 20-60% after one episode and 56% after second episode. The risk of recurrence is probably multifactorial and that factors which may or may not predispose to recurrence have not yet been established. However, a prospective study should be done to determine the initial size of pneumothorax, smoking status, and the primary form of treatment should be employed since these factors were shown to affect recurrence rate.