Diagnostic significance of pleural pressure swing in patients with pleural effusion syndrome underwent thoracocentesis

Hasanov Ilgiz Ravilyevich, Korzhuk Mikhail Sergeevich, Bezmozgin Kirill Gennadievich, Blokh Aleksey Igorevich

Pleural effusion often complicates many systemic diseases and significantly reduces the quality of patient's life. In our study, we developed a device and method for measuring pleural pressure during thoracocentesis and drainage of the pleural cavity. A prospective clinical study included 36 clinical cases of patients who underwent inpatient and outpatient treatment with pleural effusion, which was performed thoracocentesis with pleural manometry recording. The control values of the parameters of pleural pressure were recorded before and after the evacuation of the fluid from the pleural cavity. The digital material is processed using the methods of regression statistics and ROC analysis. Depending on the outcomes of the manipulation, the sample was divided into groups with a straightened (n = 18) and an unexpandable lung (n = 18), and a subgroup of patients with pneumothorax (n = 6) appeared after thoracocentesis. It has been proven that a decrease in the amplitude of pleural pressure swing after fluid removal is a predictor of the unexpandable lung.

Keywords:pleural manometry, pleural effusion, pleuritis, thoracentesis, hydrothorax