The aim of the paper was to examine the effect of noise on the blood flow velocity through a period of three years on workers who work on press machine. It was proven that continuous exposure to noise affects the blood flow velocity through the aorta and increases the diameter of ascending aorta and this, consequently, leads to an increase in cardiovascular risk. Prevention of changes in the cardiovascular system is considered to be imperative, and the limitation of noise levels and the length of exposure to noise must be established as factors that must be planned during the construction of the work environment.

Introduction: Laparoscopic cholecystectomy is now considered the procedure of choice that achieves a shorter recovery period after the surgery and reduction in the cost of treatment. Aim: The aim of the study is to prove which method: early or delayed laparoscopic cholecystectomy is the method of choice in the treatment of acute cholecystitis by examining: duration of hospitalization, conversion rate, duration of surgery, postoperative complications, and total cost. Methods: The study was conducted at the University Clinical Center of Republika Srpska as a retrospective-prospective study from May 1st 2013 until December 31st 2019. Patients diagnosed with acute cholecystitis were divided into two groups: Patients designated for early laparoscopic cholecystectomy within 72 hours of admission (group A–42 patients), Patients designated for initial conservative treatment followed by a delayed interval of 6-12 weeks until surgery (group B-42 patients). Results: In both groups, there were statistically significantly more female respondents. The results showed that the average cost of treatment in the early treated group was statistically significantly lower than the cost of treatment in the delayed treatment group. The patients in the early group had shorter hospitalization times (an average of 2.8 days and 5.6 days in the delayed group of patients), a smaller percentage of conversions (4.8% in the early and 16.7 in the delayed group of patients), the total cost of in the early group it was 1300.83 KM, while in the delayed group it was 1645.43 KM. Conclusion: Early laparoscopic cholecystectomy is a method to be preferred in surgical treatment.

Introduction: Injuries to the radial nerve can occur at any point along its anatomical route, and the etiology quite varies. A particular entity are war injuries of the extremities, which have high morbidity but low mortality. After irreparable radial nerve injury, the only treatment is tendon transfer (if we neglect arthrodesis) with over then 40 methods. Four tendon transfers are considered as better than the other and two of them are the subject of our article flexor carpi radialis (FCR) and flexor carpi ulnaris (FCU). Aim: To evaluate the ultimate functional results of forearm tendon transfers for irreparable radial nerve damage caused by war injuries and indicate the better operative treatment choice in accordance with the evaluation schemes. Methods: This retrospective research included 40 patients with isolated irreparable radial nerve damage. Patients were operated from 1993 to 1996. The follow-up period is from 3.5 to 11.5 years (until 2007). Twenty patients were operated using FCR tendon transfer method and twenty patients were operated using FCU tendon transfer method. The surgery was performed at the Clinic for Reconstructive and Plastic Surgery, Clinical Center University of Sarajevo. Three score evaluation schemes were used: Zachary, Neumann Pertecke and Tajima scheme, along with subjective evaluation of treatment. Results: Measured by the Zachary Evaluation Scheme, the overall score in patients undergoing FCR tendon transfer is 92.25%. In patients undergoing FCU tendon transfer, the total score was 82.20%. The total result of all 40 operated patients was 87.25%. The Zachary evaluation scheme showed a significant difference between FCR and FCU results by tendon transfer (p <0.05) in favor of the FCR tendon transfer. Tajima scheme proved a statistically significant difference between the two tendon transfers (p = 0.024), also in favor of FCR tendon transfers. Conclusion: Forearm tendon transfer is a relevant method to compensate for the loss of function of the wrist, fingers and thumb extensions as a result of irreparable damage to the radial nerve. FCR tendon transfer provides better functional results than FCU tendon transfer in irreparable radial nerve damage. The time elapsed from the injury to the performed surgery of the tendon transfer has no effect on the final functional result. There is no surgical tendon transfer procedure that can be recommended as a standard for any patient. Practically, the surgeon must tailor the surgery to the patient’s needs. It is necessary to develop a unique and generally accepted evaluation scheme for the results of tendon transfers that will enable comparisons of results achieved. Both methods can be used for irreparable damage of radial nerve due to any etiology.

Introduction: Achilles tendon injuries usually occur with abrupt movements at the level of the ankle and foot, and the consequence is the overload of the Achilles tendon. Aim: Examine the Achilles tendon load as a function of the landing angle, and find the critical point at which the tendon overload begins and when a further increase in the landing angle can lead to rupture. Methods: The study has a prospective character. The input data represent the anthropometric values of the respondents, who are professional basketball players in the senior national team of Bosnia and Herzegovina and were processed in the CATIA v5-6 software solution. Software data processing analyzed the landing angles and the transfer of force to the Achilles tendon. The end result is a regression curve, which projects the angle at which the Achilles tendon is overloaded, and indicates an increased risk of possible injury to the tendon itself. Results: The onset of overloading starts at an angle of 32.28° and at an angle of 35.75° the overloaded load occurs, indicating the need for the subject to change the position of the foot to prevent damage to the tendon itself. Conclusion: An angle of 35.75° is the critical point at which the Achilles tendons are overloaded at the very landing. Prevention of injury should go in the direction of practicing the feet for a particular position at the time of the landing, and in the direction to develop adequate footwear that would mitigate the angle at the landing.

Introduction: Breast augmentation is one of the most frequently performed aesthetic surgical procedures in the world. The most important preoperative decisions which influence the final appearance of the augmented breast are the breast implant pocket choice and selection of the most appropriate implant. Described pocket locations are subglandular, subfascial, partially retropectoral, totally submuscular and dual plane. Aim: We have introduced a new method of pocket forming for implant placement, which is combination of Tebbett’s dual-plane 2 or 3 and Graf’s subfascial. We named it as dual plane subfascial. Methods: Between January 2016 and April 2018, total of 27 patients were operated using dual plane subfascial breast augmentation. The pinch test in the medial pole less than 2,0 cm and in upper pole less than 2,5 cm are indications for this technique. In our modification, in primary cases a dissected flap in front of muscle is fasciocutaneous (not cutaneous as in Tebbett’s technique). It will be finally located caudally of pectoral muscle and in front of the lower pole of implant. Fasciocutaneous flap in primary cases and two independent levels of soft tissue coverage (fascial and cutaneous) in secondary cases (subglandular to dual plane subfascial conversion) in front of the lower pole of implants provide better coverage than cutaneous flap alone. Results: Hematoma and infection did not occur in any patient in our study. A capsular contracture grade I/II without the need for reoperation occurred in two patients. In one patient with secondary augmentation minimal bottoming out was noticed (before reoperation patient had significant bottoming out deformity). Minimal palpability of implants is recorded in three patients. Conclusion: Dual plane subfascial is a good option in primary breast augmentation with a well set indication especially in the breasts with the upper pinch test less than 25 mm and medial pinch test less than 20 mm. The idea can be followed even in secondary breast augmentation (subglandular to dual plane subfascial conversion). There is additional soft tissue in front of the implant which led to a less implant palpability, especially in thin patient with smaller amount of subcutaneous fat.

Aim: The aim of this article is to determine the possible correlation between the smoking habit and the incidence of basocellular skin cancer (BCC). Patients and methods: The prospective study, which lasted from June 2012 to June 2018, included subjects diagnosed with basocellular skin cancer (BCC). Respondents were divided into 3 groups. The first, group A (21 respondents), are respondents who smoke 20-35 cigarettes a day. The second, group B (19 respondents), consists of respondents who smoke 35-50 cigarettes a day. The third, group C (91 respondents), consist of non-smokers. Observed parameters are sex, age, current and previous smoking habits, including duration (total smoking year) and intensity (average number of cigarettes smoked per day), age at the start of smoking, and prolonged exposure to the sun. Results: No statistically significant relationship was found between smoking and BCC frequency. It was shown that with BCC of the skin was more affected those who did not smoke. There is no clear relationship between the duration of smoking and/or the amount of smoking and the development of BCC, and it follows that this relationship is not likely to be causative. A suggestive, but not significant, evidence of relationship between smoking and skin cancer is found at this time. Conclusion: Since it is a conglomerate of possible etiological factors, further research is needed to definitively clarify the effect of tobacco consumption on the development of BCC by monitoring a larger number of respondents over a longer period of time in large prospective studies. In any case, a possible association with skin cancer is a reason to avoid smoking.

Introduction: Timely diagnosis is a prerequisite for the successful treatment of malignant skin tumors. Late diagnosis leads a patient into a situation of losing valuable time and chance for cure. Material and methods: A prospective study was conducted from February 2006 until August 2011 which analyzed the reasons that led to establishing the diagnosis of malignant skin tumors in 220 patients. Patients were divided into two groups: Group A (102 patients), patients with diagnosed melanoma, and group B (118 patients) of patients suffering from basocellular (BCC) and planocellular cell (PCC) skin cancer. Parameters for comparison of analysis results were the reasons for coming to examination and reasons for not coming to the examination, because of which skin cancers were not diagnosed in time. Goal: To determine the factors that influences the establishment of late diagnosis and treatment of skin tumors. Results: It was confirmed that the prejudices of patients that tumors of the skin „should not be operated because it is dangerous“ is the main reason for late diagnosis. At the same time it is confirmed that the belief that it is unnecessary to operate congenital changes of the skin is the second most important reason for delayed diagnosis of malignant skin tumors.