Comparing Active Versus Passive Aspiration in Therapeutic Thoracentesis: Efficacy, Procedure Time, and Patient Safety

For the Active Manual Syringe Aspiration, the operator manually withdraws pleural fluid using a syringe attached to a 3-way stopcock and transfusion set. The fluid is then expelled into a collection bag.

In Passive Gravity Drainage, after confirming proper needle placement with initial aspiration, the syringe is detached, and pleural fluid is allowed to drain passively by gravity through the transfusion set into a collection bag.