Spontaneous regression of herniated nucleus pulposus occurs when intervertebral disc herniation loses its volume partly or totally without surgical interventions. Cases of spontaneous regression of large extruded lumbar disc are rare. We presented a patient with large lumbar disc extrusion documented by Magnetic Resonance Imaging, but not found intraoperatively four months after performing diagnostic. Postoperatively he felt well for two months when the pain reappeared. Control Magnetic Resonance of lumbar spine showed complete resolution of extruded disc fragment comparing with the initial Magnetic Resonance Imaging.

The nonlocal van der Waals density functional approach is applied to calculate the binding of graphene to Ir(111). The precise agreement of the calculated mean height h = 3.41  Å of the C atoms with their mean height h = (3.38±0.04)  Å as measured by the x-ray standing wave technique provides a benchmark for the applicability of the nonlocal functional. We find bonding of graphene to Ir(111) to be due to the van der Waals interaction with an antibonding average contribution from chemical interaction. Despite its globally repulsive character, in certain areas of the large graphene moiré unit cell charge accumulation between Ir substrate and graphene C atoms is observed, signaling a weak covalent bond formation.

Aim.Goal of the study was to assess the frequency of birth and mortality of low birth weight infants based on the level of neonatal institution where they were born and/or treated according to gestational age, in the Federation of Bosnia and Herzegovina. Methods. Through the prospective study over one-year period from 01.01. to 31.12.2009, the infants were analysed (stillborn and liveborn) of both genders, gestational age 24-42 weeks and birth weight below 2500 grams. Results. During the assessment period, 22897 infants were born, 669 with low birth weight, so that the incidence was 2.9 %. Gender breakdown is proportional. Most of the infants were born in two largest Cantons, Sarajevo and Tuzla. In the first level neonatal institutions 29 infants were born, 286 in the neonatal institutions of the second level, and 354 low birth weight infants were born in the neonatal institutions of third level. There is statistically significant discrepancy in frequency of low birth weight infants' births between neonatal institutions of first and second level (χ2=272.1; P<0.0001), as well as second and third level (χ2=13.4; P<0.0002). Of 29 low birth weight infants born in neonatal institutions of first level, 26 were referred to other institutions, while 3 died in the institution where they were born. Neonatal institution of second level kept 127 infants at treatment, 53 of whom died. There was no statistically significant discrepancy in mortality of low birth weight infants between the institutions of first and second level (χ2=0.71; P=0.398), with relative risk [ RR=0.507 (95% CI 0.148- 1.738) ]. In third level neonatal institutions, 513 infants were treated and 461 survived, while 52 died. Statistically significant discrepancy was found in the mortality rate of low birth weight infants between the institutions of second and third level ( χ2=71.8; P<0.0001), with high relative risk [ RR=6.349 (95% CI 4.030-10.003) ]. Conclusion: Survival of low birth weight infants born in the maternity hospitals with neonatal institutions of third level is statistically higher than the survival rate of infants born in the maternity hospital with neonatal institutions of first and second level.

Background. Transfusion therapy represents a rational model of therapy which is frequently used in neonatal period. Aim.to investigate predictive role of blood group, Rh factor and gestational age in transfusions reaction in neonates. Patients and methods. we evaluated 95 neonates gestational age between 28 and 42 weeks treated with blood components. All neonates were treated in the Unit of Neonatology at Department of Gynecology and Obstetrics at University Clinical Center Tuzla in the period of 01.01.2006.-31.12.2008. Results. During the period of investigation there were 12 526 born neonates gestational age from 28 to 42 weeks. Incidence of transfusion reaction was 0, 37%. The median of gestational age in the complete sample was 38 weeks, with interquartile range from 35 to 39 weeks, with 28 weeks minimum and 40 weeks maximum. The incidence of transfusion reaction in relation with the blood group was most evident in recipients in blood group type A, but there were no statistically significant differences in incidence of transfusion reactions between four blood groups (X2=6.352; df=3; p=0.097). There was no statistically significant difference in incidence of transfusion reaction according to the Rh factor (X2=0.755; df=1; p=0.385). Investigation of transfusion reaction according to the blood group and Rh factor showed no statistically significant difference (X2=8.063; df=7; p=0.327). The logistic regressional analyses showed that the gestational age is significant predictor of appearance of transfusion reaction (OR=0.867; %95 CI=0.756 do 0.993; p=0.04). Conclusion. Transfusion reactions in neonates are not rare. The blood group and Rh factor are not valid in prediction of transfusion reaction while the gestational age is good predictor in appearance of transfusion reaction.

BACKGROUND: Heart failure is a common disease that requires frequent and long hospitalizations, the active participation of health workers and family members in the care of such patients, and it leads to reduction of physical activity and lifestyle changes with the patient, which significantly affects the quality of life of patients with heart failure. OBJECTIVE: To determine the quality of life of patients with heart failure in relation to severity of the clinical features. RESPONDENTS AND METHODOLOGY: Analysis of life quality was performed for 120 patients suffering from heart failure, both genders, all age groups in relation to severity of the clinical features. Patients were divided into 4 groups according to NYHA classification of heart failure. The control group consisted of 10 subjects who do not suffer from heart failure. Assessment of quality of life was performed using the SF-36 questionnaire which consists of 8 segments classified in the dimension of physical and mental health. RESULTS: Study group consisted of 130 participants with heart failure had 66 (51%) of male, and other were females, divided into 4 NYHA groups, where every group had 30 subjects (23.1%), and one control group of 10 subjects (7.7%). The analysis of gender and age distribution within the groups found no statistically significant difference (X2=1.70; df=4; p=0.79), (ANOVA; F=0.74; p=0.57). The values of SF-36 score expressed as the median in the control and 4 NYHA groups were decreasing as the functional class progressed. The Spearman Correlation Coefficient showed that there is a strong negative correlation between the scores of SF 36 (total, segments and dimensions) and heart failure expressed through the NYHA classes. CONCLUSION: Quality of life in patients with heart failure was exacerbated and associated with severity of the clinical features.

An otherwise healthy, 12.5-year-old malepresented with sudden onset chest pain, wasadmitted to hospital for elevated blood pres-Panel 1Panel 2Acta Medica Academica 2011;40(1):83DOI 10.5644/ama2006-124.12sure. Physical examination showed systolicheart murmur grade 2/6 in the aortic areawith abdominal vascular murmur and normalperipheral pulses. Blood pressure waselevated: (left arm) 170/110 mmHg, (left leg)185/115 mmHg. The plasma renin activity(6.5 nmol/l/h) was elevated. Renal functionwas normal. Doppler blood flow fromboth renal arteries showed a suspected mildobstruction.