[Localization of the interpleural space using the "hanging drop" method]

"Hanging drop" method was used in 45 patients to determine interpleural needle placement which was easily achieved in 100% of the cases, advancing a catheter through the needle without any difficulty. No pneumothorax was observed. In conclusion, we consider that "hanging drop" method is effective to determine interpleural needle placement, with little disturbance to the patient.