Abstract Pleural infection is a frequent clinical condition. Prompt treatment has been shown to reduce morbidity, mortality and duration of hospital stay. Unfortunately, advanced stages of empyema need to use extensive surgery - decortications or thoracoplasty. Early recognition of the parapneumonic effusion and the adequate treatment with thoracentesis or pleural drainage, which is minimally invasive, is possible not to prograde the process and not to become empyema. Aim: To analyze the results of the surgical treatment in patients with empyema treated at Clinic for thoracic surgery. Material and methods: In the retrospective study we analyzed 234 patients with empyema which were treated at the Clinic for Thoracic Surgery in 5 year period (2011-2015). The mean age of the patients was 51.94 years. They were treated with pleural drainage, decortications or thoracoplasty. Results: With pleural drainage were treated 165/234 (70.51%) patients, of which successfully were finished 124/165 (75.15%), but 41/165 (24.85%) were indicated after the decortications. A total of 108/234 (46.15%) were treated with decortications from which, primary decortications were indicated in 67/234 (28.63%) patients. 5/234 (2.14%) patients were treated with thoracoplasty – 3 of the patients with decortications and 2 with primary indicated thoracoplasty according to the local findings, long term untreated empyema and bad general condition. The Mean hospitalization was 17.4 days, of which 13.4 days after surgery. In the group with primary drainage it was detected a lethal outcome in 7/124 (5.64%) patients, 5/105 (4.76%) in the group with decortications and 2/5 (40%) in the group with thoracoplasty. Conclusion: Early detection of the parapneumonic effusion and the adequate treatment will prevent the appearance of empyema. If the empyema is detected it is necessary as early as possible to start the treatment with minimally invasive pleural drainage. In earlier stages it is possible to use less invasive decortications, using VATS than the open thoracotomy decortication which is more extensive surgical intervention.

A 48-year-old man with retrosternal chest pain and upper abdominal pain with propagation to the back, with clinical signs of nausea, dyspnea and dysphagia was referred to the Clinics of thoracic surgery. After esophagography, operative treatment was indicated. Left thoracotomy with mediastinothomy were performed. During the operation, a sample of pus was taken and sent for a microbiological examination at the Institute of Microbiology and Parasitology, Medical Faculty in Skopje. Standard microbiological procedures were used. The sample was cultured anaerobically on Schaedler agar and incubated for 48 hours at 37ºC. Oval, smooth colonies were observed. Gram stained smear revealed short branching Gram-positive filaments suspected for genus Actinomyces. For a definitive diagnosis and differentiation of the Actinomyces species, an automated VITEK system was used. Two weeks after treatment by ceftriaxon, metronidazol and analgetics, all clinical signs improved and patient was released in good physical condition.

AIM:The aim of the study was to identify the impact of T stage, the presence of estrogen, progesterone, HER2neu receptors and the values of the Ki67 on the positivity for metastases of the axillary lymph nodes, from primary breast cancer.MATERIAL AND METHODS:290 surgically treated patients for breast cancer were included in the study. All cases have been analyzed by standard histological analysis including microscopic analysis on standard H&E staining. For determining the molecular receptors - HER2neu, ER, PR, p53 and Ki67, immunostaining by PT LINK immunoperoxidase has been done.RESULTS:Patients age was ranged between 18-90 years, average of 57.6+11.9. The mean size of the primary tumor in the surgically treated patient was 30.27 + 18.3 mm. On dissection from the axillary pits 8 to 39 lymph nodes were taken out, an average of 13.81+5.56. Metastases have been found in 1 to 23 lymph nodes, an average 3.14+4.71. In 59% of the patients there have been found metastases in the axillary lymph nodes. The univariate regression analysis showed that the location, size of tumor, differentiation of the tumor, stage, the value of the Ki67 and presence of lymphovascular invasion influence on the positivity of the axillary lymph nodes. The presence of the estrogen receptors, progesterone receptors and HER2neu receptors showed that they do not have influence on the positivity for metastatic deposits in axillary lymph nodes. The multivariate model and the logistic regression analysis as independent significant factors or predictors of positivity of the axillary lymph nodes are influenced by the tumor size and the positive lymphovascular invasion.CONCLUSION:Our study showed that the involving of the axillary lymph nodes is mainly influenced by the size of the tumor and the presence of lymphovascular invasion in the tumor. Ki67 determined proliferative index in the univariate analysis points the important influence of positivity in the axillary lymph nodes, but not in the multivariate regressive analysis.

Abstract Introduction: Surgical stress response, results in elevated levels of anti-insulin hormones and reduced insulin secretion. This hormonal state may be detrimental for surgical patients due to the presence of insulin resistance and hyperglycemia. Additionally, pre-operative fasting favors this conditions. The aim of this study is to analyze the impact of pre-operative caloric load, with 440kJ from amino acid infusions on the levels of glucose, cortisol and insulin resistance in surgical patients. Material and Methods: The study included 20 female patients scheduled for mastectomy, aged 30-60 years without diabetes and BMI < 30 m2, divided into two groups. The study group A, the evening before the surgery, received 1000 ml amino acid infusions, while the control group B didn′t receive any infusion. In both groups glucose, C-peptide and cortisol levels were determinate preoperatively and postoperatively. From the obtained C-peptide and glucose values, with the help of computer model (HOMA2*), the insulin resistance (IR), functionality of beta cells (BETA) and insulin sensitivity (IS) were calculated. Results: Postoperative values of insulin resistance (0.94 ± 0.12 vs 1.13 ± 0.2; p = 0.02) and glucose (4.79 ± 0.5 vs 5.77 ± 0.6; p = 0.002) were lower in the study group compared to control group. Postoperative cortisol levels in both groups were higher than the preoperative, but no significant difference was found. The study group showed higher values for BETA and IS. Percentage changes between the groups were significant for all parameters. Conclusion: Pre-operative caloric load (amino acids) reduces the level of insulin resistance and glucose in the presence of elevated cortisol levels.

Abstract Background: Anatomical lung resection offers the best chance of cure for patients with localized lung cancer. Very often late diagnoses, advanced stage of the disease limit radical anatomical surgical resection. Use of neoadjuvant chemotherapy made some of the cases operable, and later they were surgically treated. Aim: to evaluate early (surgical) complications at patients with neoadjuvant therapy. Material and Methods: We compare 36 patients surgically treated with lung resection, before treated with neoadjuvant chemotherapy (3 to 6 cycles with platinum based regiments under protocol) with 42 patients surgically treated without neoadjuvant chemotherapy, in the same period, in the 2009 and 2010. Results: At the group with neoadjuvant chemotherapy we register more intraoperative and early postoperative complications as: bleeding 10 vs. 7, p=0.63, changes in lung vessels 3 vs. 0, p=0.8, prolonged air leak 9 vs. 6, p=0.63, stump fistula (at pneumectomy patients) 2 vs. 0, p=0.76, pneumonia 9 vs. 3, p=0.86, wound infection 2 vs 0, p=0.73, atelectasis 8 vs. 2, p=0.88, prolonged pleural drainage 10 vs. 4, p=0.87. There, also, was no difference in 30 days mortality rate between groups. Conclusions: Neoadjuvant therapy increased theperioperative complications in this group of patients compared with a similar group undergoing anatomical lung resection in the same institution. The most common complication in patients receiving induction chemotherapy was detected at the group with neoadjuvant chemotherapy. Strategies to prevent these complications will be important, especially if chemotherapy before resection becomes the standard for all patients with non-small cell lung cancer

Open and Video-Assisted Thoracoscopycal pleural decortications are proved and effective surgical procedure in the surgical treatment of pleural empyema in the fibrinopurulent stage. Early referral to surgery gives a better chance of success in VATS pleural decortications than open decortications. Pleural morphology, biochemistry and biology can also affect the outcome of the surgical treatment of pleural empyema. The aim of this paper is to compare the results of VATS and open decortications of the pleura according to the preoperative morphological and biochemical conditions of the pleura and the pleural cavity as well as postoperative morphological and functional improvement in patients with parapneumonic, fibrinopurulent pleural empyema. Two different approaches (VATS and open pleural decortications) were analyzed in 37 patients divided into two groups. The biochemical analysis of pleural fluid (LDH, glucose, pH and albumins) and the pleural thickness of the chest CT scan were measured. The success of the operations was measured by plain chest X-ray and functional tests after 3 months postoperatively. The group with VATS pleural decortications showed a significantly (p<0.001) lower pleural LDH level and pleural thickness and significantly higher levels (p<0.001) of glucose and albumins than the group with opened pleural decortications. The differrences in the pleural pH were not significant. Postoperative chest X-rays at discharge were significantly better in VATS pleural decortications. FEV1 and FVC, predicted and 3 months after operation, were not significantly different between the two groups. VATS and open decortications are safe and effective for the majority of patients. When VATS pleural decortications cannot be performed due to an obliterated pleural space, open pleural decortication still remains an effective procedure that allows acceptable functional and morphological results. Preoperative determination of pleural LDH, glucose, and albumins, as well as the thickness of pleural peel on CT scan, enables better evaluation of the pleural condition and a more exact indication of the right procedure.

Background. The HER-2 protein or p185her2 is a membrane receptor with tyrosine kinase activity encoded by HER-2/neu gene. Overexpression of HER-2/neu has been observed in many human cancers, including lung cancer. In the study, the expression of HER-2 protein is determined in the spectrum of lung cancer (adenocarcinoma, squamous cell carcinoma and small cell carcinoma). Patients and methods. The study population consisted of two groups: 19 patients that had undergone surgical treatment and 10 patients that had undergone fiber-optic bronchoscopy and biopsy for primary diagnosis only. Tissue specimens were neutral formaldehyde-fixed and paraffin-embedded. Standard histochemical and immunohistochemical staining were used for diagnosis. Expression of HER-2/neu protein was determined by immunohistochemical staining with Hercep TestTM (DAKO). The results were graded 0-1 as negative and 2-3 as positive. Results. Overall incidence of HER-2/neu overexpression was 34.4% (10 of 29). Higher incidence was found in the patients with adenocarcinoma 45.4% (5 of 11). In squamous cell carcinoma and small cell carcinoma, the overexpression incidence was 30.7% (4 of 13) and 20% (1 of 5), respectively. No statistically significant difference was seen given the age and gender. HER-2/neu overexpression was more pronounced in the patients with advanced tumour: all patients with squamous cell carcinoma and HER-2/neu overexpression had stage IIIB and stage IV disease, while 80 % of adenocarcinoma patients with HER-2/neu overexpression had stage IIIA and IIIB disease. Conclusions. These results are satisfactory and encourage us to continue this work in the follow-up study to evaluate HER-2/neu role as predictive and prognostic factor for the patients with lung cancer.