The author presents a case study of the use of resuscitative endovascular balloon occlusion (REBOA) as a suitable alternative to thoracotomy and clamping of the descending aorta to control retroperitoneal bleeding in a patient with a pelvic injury. The patient who suffered multiple trauma after car accident, type C pelvic injury and retroperitoneal bleeding among other things, was following the pre-hospital ambulance care transported to the department of emergency medicine, with catecholamine infusion to support the blood flow. After the primary survey following the ATLS principles, the patient was taken for a CT scan. The CT examination revealed also multiple sources of retroperitoneal bleeding. Subsequently, the patient was brought to the operating room, where endovascular balloon occlusion of the descending aorta was performed to temporarily control retroperitoneal bleeding, which provided more time to treat the patient in line with the damage control surgery principles. In bleeding patients who suffered blunt torso traumas and serious haemorrhagic shock, or patients "in extremis", the survival after emergency thoracotomy ranges only around 1%. The to date results of REBOA technique applied in same indications are very promising globally. The survival rate increases multiple times especially in hypotensive patients, without the necessity of their immediate cardiopulmonary resuscitation. Key words:resuscitative balloon occlusion of the aorta, REBOA, haemorrhagic shock, retroperitoneal bleeding.