Azadeh rafipoor kiaabadi1*, Manouchehr Aghajanzadeh2, seyyed Ali Alavi3, Alireza Jafarinejad4, Azita Tangestaninejad5, Bahareh mohtasham alsharyeh6
Introduction: Pneumothorax is applied to the entering of air or gas into the peripheral space (pleural space) and creating a positive pressure in it; it can disrupt the performance of ventilation and oxygenation, and potentially threaten life. So far no detailed statistics has been collected in Iran on the prevalence of this disease. The present study was done to investigate the predicting role of the high resolution CT scan findings in the therapeutic path of spontaneous pneumothorax in patients referring to the Aria and Razi hospitals of Rasht during September 2013 to 2016.
Research method: This study is a retrospective cohort study. The files of all patients referred to the Aria and Razi hospital of Rasht were examined; after rejection of specified causes of pneumothorax they were hospitalized based on diagnosing spontaneous pneumothorax. Then based on having or not having a CT scan the patients were divided into spontaneous pneumothorax with HRCT and spontaneous pneumothorax without performing HRCT; they were followed up for one year through the registration of medical records, repeated references or via a phone call in terms of the incidence of relapse and the relapse side. The information of all patients was registered including age, sex, stature, history of tobacco use, status of the Dystrophic lesions (number and severity), involved side, pneumothorax volume, primary shortness of breath, breathing distress, heart rate etc. The therapeutic path was studied in the first group of patients having HRCT Scan and in the second group without HRCT Scan. An analysis of the variables was done using the Chi-square test and the significance level was considered 0.05.
Results: In this study, 80.1% of the patients under study were male and their average age was 42 years. 40.2% of the studied patients used HRCT. Patients who have suffered from a spontaneous pneumothorax for the first time were of 63.3% frequency and those who were exposed to relapse were of 36.7% frequency. Also using statistical analysis of Chi-Square there was observed a significant difference between the two groups (P = 0.001). Using statistical analysis of Chi-Square, between the two groups of individuals suffering from PSP, those whose 49.7% had done HRCT and those whose 50.3% had not done it, a significant statistical difference was observed (P = 0.001).
Discussion and conclusion: It seems that respecting the importance of the question, dealing with patients with spontaneous pneumothorax in our country needs to pay more serious attention; with understanding more and better this disease it should be tried as much as possible to use less costly therapies and less invasion like HRCT.
