current early and mid-term outcome after the arterial switch operation for transposition of great arteries does interluminal papverine injection improve internal mammary artery free flow during coronary artery bypass grafting? double orifice mitral valve repair extrapleural versus epidural catheter techniques employing ropivacine analgesia for post thoracotomy pain relief flail chest :ventilate or not to ventilate? profile of thoracic trauma:analysis of 300 patients repair of tetralogy of fallot in infantcy and early childhood/Decision making and outcome VATS versus open thoracotomy in the managment of primary spontanous pneumothorax; Acomparative study video assisted thoracoscopic sympathectomy in patients with primary hyperhydrosis