Continuation Of a Study to Investigate the Effect of Thoracocentesis on Neural Respiratory Drive in Pleural Effusion

The surface parasternal EMG of participants will be measured pre, immediately post and at days 1 and 7 following pleural fluid removal

The ipsilateral and contralateral surface diaphragm EMG of participants will be measured pre and immediately post pleural fluid removal

The thickness of the parasternal intercostal muscle of participants will be measured using thoracic ultrasound pre and immediately post pleural fluid removal

The VAS breathlessness score and Dyspnoea-12 questionnaire of participants will be measured pre, immediately post and at days 1 and 7 following pleural fluid removal