INTRODUCTION Primitive neuroectodermal tumor or Ewing's sarcoma is a tumor of undifferentiated small round cells that arise from the soft tissues, and is believed to be of neural origin. It occurs most often in children, followed by adolescents and young adults. CASE OUTLINE A case of a 24-year-old patient with ulcerostenosans Ewing's sarcoma of the initial part of the small intestine is presented in our paper. Reviewing the literature and using as an example the case of a female patient with signs of sideropenic anemia caused by primitive neuroectodermal tumor of the small intestine, an attempt was made to clarify the etiology, clinical presentation, diagnosis and therapy with the aim of its rapid detection and treatment. CONCLUSION Mesenteric primitive neuroectodermal tumor is a rare neoplasm in adults, while it usually occurs in children and young adults. Surgical resection of the lesions with the application of chemotherapy is the main form of treatment of patients suffering from this disease.

Knowledge of pathophysiological basis of laparoscopic procedures, that is, the influence of CO2 pneumoperitoneum (PNP) on the body in particular, can prevent the complications during laparoscopy to occur. Standard intra-abdominal pressure (IAP), which is used during laparoscopic surgery, is 12-15 mm / Hg. The direct effect of CO2 pneumoperitoneum is a result of mechanical action of the gas and increasement of intra-abdominal pressure (IAP). The indirect effect of CO2 pneumoperitoneum is caused by the absorption of gas inserted into the abdomen. Analysis of published articles that assess the effects of CO2 pneumoperitoneum on the body and abdominal organs contributes to a better usage of the laparoscopic method. Different techniques in laparoscopy, created as an alternative to standard CO2-pneumoperitoneum, have the task to reduce the risks for patients with comorbidity and simultaneously raise the abdominal wall and allow the surgeon to perform smooth operation, which is especially important for ASA III and ASA IV patients. Alternative techniques can be divided into three groups: laparoscopy using pneumoperitoneum with low intra-abdominal pressure (up to 8 mm / Hg), laparoscopy using retractors abdominal wall and limited pneumoperitoneum, and laparoscopy without the use of gas (gasless laparoscopy; raising the abdominal wall retractor only ). Low insufflation pressure in the abdomen (up to 8 mm / Hg) is beneficial for patients with laparoscopic procedures and its routine usage in elderly patients and patients with severe cardiorespiratory diseases, should be common practice. Gasless laparoscopy was created because of the need to prevent the negative effects of increased intra-abdominal pressure on the body during laparoscopy, primarily in patients with high comorbidity (ASA III and ASA IV). When compared to other techniques, numerous studies prefer laparoscopy with low insufflation pressure, but in practice this is not done routinely, yet each technique is applied selectively, according to the needs and condition of the patient, which is the most appropriate. To avoid the side effects of CO2 pneumoperitoneum, which is important in high-risk patients, it is more likely to operate on low IAP (6-8 mm / Hg) or use gasless laparoscopy. This is especially important for long – duration operations. DOI: 10.7251/SMDEN1501066H (Scr Med 2015:46:66-72)

U ovom radu se analizira kauzalnost između dostignutog stepena razvoja bankarskog sektora Republike Srbije i njenog ekonomskog razvoja, kroz analizu određenih parametara finansijskog zdravlja, zatim ekonomski rast koji se putem makroekonomskih parametara dovodi u vezu sa parametrima razvoja bankarskog sektora. Glavni cilj u ovom radu je da se utvrdi putem modela višestruke regresione analize da li postoji obostrana kauzalnost i uslovljenost performansi realnog i bankarskog sektora, odnosno da li performanse bankarskog sektora imaju uticaja na kvalitet performansi ekonomskog razvoja. Vremenski interval koji pokriva data analiza je period od Q4 2008. do Q1 2014. godine.