The use of high-volume thoracentesis and pleural pressure measurement to study the newly described pathophysiological phenomena in patients with pleural fluid

Acronym
PROJEKT_OPUS18
Project Title
Wykorzystanie wysokoobjętościowej toracentezy i pomiaru ciśnienia
opłucnowego do badania nowo opisanych zjawisk patofizjologicznych u chorych z płynem w
jamie opłucnej
Nazwa Kliniki/Zakładu
Katedra i Klinika Chorób Wewnętrznych, Pneumonologii i Alergologii
Konkurs/program
OPUS18
Financing Institution
Lead
prof. dr hab. Rafał Marian Krenke
Subject
Wykorzystanie wysokoobjętościowej toracentezy i pomiaru ciśnienia
opłucnowego do badania nowo opisanych zjawisk patofizjologicznych u chorych z płynem w
jamie opłucnej
Project Objective

The objectives of the project

Objective 1. To study whether voluntary cough and/or CPAP facilitate the recruitment of atelectatic

lung regions and elevation of Ppl in patients undergoing TT.

Objective 2. To assess the percentage of patients in whom TT is associated with a decline in blood

oxygenation and whether this decline is caused by increased V/Q mismatch and pulmonary shunt.

Objective 3. To evaluate whether mediastinum and diaphragm compliance and the anatomical shift of these structures have a significant impact on the pattern of Ppl fall

Objective 4. To study PPP and its changes in terms of the relationship with systolic and diastolic heart

volume and the changes in stroke volume.

Objective 5. To evaluate whether large volume PE impairs function of the respiratory muscles and

whether impaired function of inspiratory muscles is associated with the sensation of the breathlessness.

Expected results
The relationship between cough and PPl elevation during thoracentesis with comparing effect of cough and passive CPAP on the course of TT and PPl changes.
The positive results may be a prerequisite for changing the recommendations on TT in the future (e.g. encouragement to cough or CPAP application during and after the procedur )
The results may also encourage a more thorough rehabilitation of patients with pleural effusion to decrease muscle weakness and sensation of breathlessness. The results of this study may shed a new light on the understanding of the mechanisms responsible for the components of Pel different than lung expandability.