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Primary spontaneous pneumothorax (PSP) is a common cause of presentation to emergency departments and subsequent hospitalization. Patients with large PSP are treated with tube thoracostomy (TT) and followed up with x-rays. In this study, we investigated the efficiency of bedside ultrasound and compared it with x-ray imaging for the clinical follow-up of PSP patients treated with TT.This is a prospective observational study. After ethical committee approval and written informed consent were obtained, patients who were treated with TT because of PSP were screened. In the follow-up of these patients, a bedside lung ultrasound (BLUS) was performed before every chest x-ray by an emergency physician experienced in performing BLUSs. The performance of BLUSs in detecting free air in the pleural cavity was compared statistically with that of x-rays.Sixty-two patients were enrolled in the study. In total, 166 BLUSs and x-rays were compared. The sensitivity of BLUS was 95.65% (85.20-99.50), specificity was 100% (79.40-100.00), positive predictive value was 100% (92-100), negative predictive value was 88.90% (65.30-98.60), and the area under the curve was 0.99 (0.974-1.000; P = 0.001) for detecting air in the pleural cavity. These results showed that there was no statistically significant difference between BLUS and x-ray methods for detecting air in the pleural cavity.Our study revealed that BLUS can be safely used for the follow-up of PSP patients treated with TT to determine if air is present in the pleural cavity. Further studies are needed.

ObjectivesSynthetic cannabinoid or “Bonzai” use is a public health issue as its use has increased in Turkey as well as all over the world. The aim of this study is to evaluate the effectiveness of the “Synthetic Cannabinoids Seminar” that was provided to physicians who work in emergency services, using multiple choice questionnaires before and after the seminar as a tool for evaluation.Material and methodSynthetic cannabinoids seminars were provided to physicians who work in emergency services in two different cities, with the participation of 20 physicians in each scheduled seminar. The seminars were instructed by emergency medicine specialists and psychiatrists who were certified as an instructor by the Turkish Ministry of Health, after receiving an instructor course in synthetic cannabinoids. In order to measure basal knowledge levels of the participants, a pretest was performed for all participants before the seminar. After the seminar, a posttest was performed using the same questions in the pretest. The number of correct answers in both tests was then compared.ResultsIn total, 85 individuals attended the seminars; 29 individuals from Dumlupınar University Evliya Çelebi Training and Research Hospital constituted first group, and 56 individuals from Denizli State Hospital constituted second group. In both groups, the ratios of correct answers in the posttest were determined to be higher when compared to the pretest.ConclusionThe seminars on synthetic cannabinoids are useful and necessary for physicians.