“…Afterwards, a wide lumen thoracic drainage (at least 28 Ch) has to be placed via “minithoracotomy” to prevent a tension pneumothorax caused by the tamponade (insertion of trocars is contraindicated) [ 31 ], [ 32 ], [ 33 ]. Nevertheless a tension pneumothorax can develop for example because of malposition of the drainage or obstruction through blood clots [ 31 ], [ 32 ], [ 33 ], [ 34 ], [ 35 ], [ 36 ], [ 37 ]. An increase in blood pressure and a decrease in oxygenation as well as a volume-resistant shock [ 34 ] are warning signs concerning this matter and should effect the placement of a second wide lumen drainage [ 14 ], [ 16 ], [ 33 ], [ 34 ].…”