Force-Velocity Profile of Competitive Kayakers: Evaluation of a Novel Single Kayak Stroke Test

The assessment of the force-velocity (F-V) profile in athletes may have important applications for training prescription, injury management, and fatigue monitoring. This study aimed to assess whether a novel single kayak stroke test (SKST) is able to provide the F-V relationship variables (maximum force, maximum velocity and maximum power) of competitive kayakers with acceptable reliability and external validity. Six female (age: 20.3 ± 3.7 years) and eight male (age: 20.8 ± 2.4 years) elite kayakers performed the SKST, bench press, bench pull, and short Wingate kayak test. The individual F-V relationships were highly linear [median r (range): left stroke = 0.986 (0.897 - 0.998); right stroke = 0.987 (0.971 - 0.999)]. The reliability of the F-V relationship parameters obtained during the SKST was high (within-session: CV ≤ 4.48% and ICC ≥ 0.93; between-session: CV ≤ 8.06% and ICC ≥ 0.65). The validity of the F-V relationship parameters obtained during the SKST was generally very high for maximum power (r range = 0.825 - 0.975), high for maximum force during both the bench press and the bench pull (r range = 0.751 - 0.831), and high or moderate for maximal velocity during the bench pull (r = 0.770 - 0.829) and the bench press (r = 0.355 - 0.471), respectively. The SKST can be considered a feasible procedure for testing the maximal upper-body muscle mechanical capacities of kayakers

The efficacy of moxifloxacin in patients with bacterial keratitis

Background/Aim. Keratitis is a sociomedical problem of moderately developed countries. including Serbia, too. The incidence of bacterial keratitis in the world is about 20% in relation to all keratitis, but its frequency in Serbia is still not known. Bearing in mind the complications in the front segment of the eye after bacterial keratitis (ulcer, neovascularization, fibrosis) and decline in visual acuity, it was necessary to assess the efficacy of local therapy by moxifloxacin which will shorten the healing time and reduce complications. The aim of the study was to analyze the efficiency of shortening the treatment of bacterial keratitis with moxifloxacin. Methods. The study was designed as prospective, randomized, double-blind study. The study included 30 patients with diagnosed keratitis and locally applied antibiotic moxifloxacin, and 60 patients in a control group, with locally applied artificial tears. All participants were subjected to complete clinical ophthalmologic analysis (2015/16), for a period of 1–15 days after the application of therapies (healing time of corneal pathology). The following was determined in all patients: degree of hyperemia, degree of epithelial defect, level of corneal sensitivity, level of tear secretion and tear quality, degree of conjunctival secretion, degree of neovascularisation and corneal scarring, degree of visual acuity, score of subjective symptomatology and correlation of ophthalmological findings and subjective symptoms. Results. There was a statistically significant difference in times of therapeutic efficacy/clinical response between the study group patients who received moxifloxacin and the control group patients who received arteficial tears. Conclusion. Local application of moxifloxacin had therapeutic effect (total benefit) both in terms of the effective shortening of the healing time and also the reduction of the complications of bacterial keratitis, without unwanted effects

Treatment of multiple chalazions with intralesional Kenalog-40 injections in juvenile patient: A case report

Aim: To case report the efficacy of subcutaneous steroid injections in the treatment of multiple chalazions and to evaluate the safety of intralesional injection in primary and recurrent chalazions in juvenile patient. Case report: A 25-year-old man noticed lesions which appeared on upper lid during past three months. It was clinically presented with three focal, large and painful nodules in upper right eyelid. Inflammation process began on May the 1st of 2013. After one month in May 30th 2013 was directly administered synthetic steroid, Kenalog-40. Application of triamcinolone acetonide resulted in two satellite lesions, compared to the original, when the same incisions drained during the first surgery in July 5th 2013, with topical antibiotic-steroidal drugs and hot compresses. Second surgery was in July 26th 2013. Third surgery was performed in August 5st 2013 with second application of Kenalog-40. Combined treatment leads to recovery of clinical signs and inflammation of right upper eyelid with regressions of primary and recurrent chalazions. Conclusion: Two steroid subcutaneous injections produced complete resolution of multiple primary and recurrent chalazions. Clinical imperative was that recurrent or unusual refractory chalazions require referral to Hystopathological examination of curetting to exclude malignancy. © 2013 Janicijevic-Petrovic MA

Autologous serum eye drops for post-chemical injuries and corneal epithelial defects

Aim: To evaluate success rate (efficacy, safety) in treatment of post-chemical injuries and corneal defects using autologous serum eye drops. Material and Methods: Authors reviewed 93 patients (116 eyes) hospitalized in Clinic of ophthalmology from 2010 to 2013, who had post-causoma corneal defects that were nonresponsive to conventional treatment and were treated with serum therapy. Authors correlated time of epithelialization of defects with rate of epithelial healing. Results: Authors investigated 93 patients (52 males, 41 females; aged 18 - 74) for treatment of corneal defects. Application of autologous serum therapy 56 (48.28%) of 116 eyes was healed in an average time of 4 weeks. Among 116 eyes, epithelial defects healed in 4 (3.45%) within 1 week, in additional 17 (14.65%) in 1-2 weeks, totalling 31 (26.72%) within 3 weeks. Five eyes (4.31%) completely healed at 5 week; three eyes (2.59%) had subsequent healing of epithelial defect at 6 week; 56 eyes completely healed within one month, and the remaining eight eyes healed within 1.5 month. Conclusion: Using serum therapy, it was managed to reduce time of healing from eleven weeks, which were necessary just couple years ago (before 2010) to four (maximum six) weeks to complete healing which are necessary today. © 2013 Janicijevic-Petrovic MA

Tumor of orbit

The cavernous hemangiomas are the most common intra orbital tumors found in adults of the middle age. Although histological benign, they can encroach on intra orbital or the adjacent structures (optic nerve) and be considered anatomically or positional malignant. We present a case report of orbital cavernous hemangioma of right orbit in young women after pregnancy, from Topola near Kragujevac (Central Serbia) with visual compromise and it's by trans-nasal endoscopic surgical management. Our patient was controlled and treated with the symptomatic therapy, topical therapy with artificial tears and surgical treatment. Our patient has optimal visual acuity of affected right eye after surgical treatment of orbital tumor. Surgical treatment of symptomatic orbital cavernous hemangioma is safe and effective, so that the cosmetic results are the important parameter to evaluate the clinical outcome

A toxic hepatitis caused the kombucha tea - Case report

Background: Toxic hepatitis may clinically manifest as other diseases of the liver, where it must always be considered in differential diagnoses of unexplained liver damage, such as poisoning with kombucha tea. Case report: 47-year old female patient was hospitalized and has consumed daily ounces of kombucha tea. During hospitalization patient was diagnosed with toxic hepatitis and treated with intravenous solutions of hepatic protective and ursodeoxycholic-acid (effective therapy). Conclusion: Examinations showed that kombucha tea has potential to revert the CCl4-induced hepatic toxicity, but used in overdose can induce toxicity himself. © 2013 Kovacevic Z

Hospitalization characteristics of patients with glaucoma in central and west Serbia

© 2019, Serbia Medical Society. All rights reserved. Introduction/Objective Glaucoma is a chronic disease that impairs the optic nerve irreversibly and can lead to serious loss of vision and blindness. As the most frequent out of all, primary open-angle glaucoma has a worldwide incidence of 2.4 million. The objective of this article is to examine the characteristics of glaucoma hospitalization patterns in Central and West Serbia in the 2006–2017 period. Methods This study was a retrospective analysis of glaucoma hospitalizations in the Kragujevac Clinical Center from 2006 to 2017 (n = 1,751). All hospitalizations were divided according to discharge diagnoses into the following three subgroups: primary open-angle glaucoma, the primary closure glaucoma, and secondary glaucoma and other glaucoma types. Results The average hospitalization rate for glaucoma is 5/10,000 inhabitants. The lowest rate was recorded in 2013 (1.8/10,000) and the highest in 2015 (9.3/10,000). The rehospitalization rate ranged from 0.5/10,000 in 2013 to 6.9/10,000 in 2015, with an average of 2.4 patients per 10,000. The most common glaucoma was secondary glaucoma and other glaucoma types (44.6%), followed by primary open-angle glaucoma (37.9%) and primary closure glaucoma (17.5%). The average hospitalization length was 6.5 ± 4.9 days and it decreased from the average 9.7 ± 6.5 (2006) to 5.5 ± 3.7 days (2013) (p < 0.01) in all glaucoma types. Conclusion There was a significant reduction of the hospitalization length in all glaucoma types in Central and West Serbia. The hospitalization rates varied with a significant increase since 2013, which is the consequence of the increase in rehospitalization rates

A toxic hepatitis caused the kombucha tea – case report

© 2013 Kovacevic Z. Background: Toxic hepatitis may clinically manifest as other diseases of the liver, where it must always be considered in differential diagnoses of unexplained liver damage, such as poisoning with kombucha tea. Case report: 47-year old female patient was hospitalized and has consumed daily ounces of kombucha tea. During hospitalization patient was diagnosed with toxic hepatitis and treated with intravenous solutions of hepatic protective and ursodeoxycholic-acid (effective therapy). Conclusion: Examinations showed that kombucha tea has potential to revert the CCl4-induced hepatic toxicity, but used in overdose can induce toxicity himself

The importance of developing atherosclerosis in pseudoexfoliation glaucoma

© 2017, Institut za Vojnomedicinske Naucne Informacije/Documentaciju. All rights reserved. Background/Aim. Pseudoexfoliation syndrome (XPS) is an age-related systemic disorder characterized by increased production and accumulation of elastic microfibrillar material in different tissues of the body: skin, connective tissue portions of visceral organs, periphery blood vessels and the eye, as well. The aim of our study was to determine the significance of atherosclerotic changes in the carotid arteries in the development of XFS and pseudoexfoliation glaucoma (XFG). Methods. The study included 120 patients – 40 patients per each of the three defined groups: XFS group, XFG group and age- and sex-matched control subjects (control group) without XFG. Blood samples were collected from the patients before cataract surgery. Serum levels of total cholesterol, low-density lipoprotein – LDL, high density lipoprotein – HDL and triglycerides were analyzed by standard laboratory techniques. Standard ultrasonography of the carotid blood vessels was performed in all the participants. Results. Lipid’s profile was disturbed in the patients with XFS and XFG with statistical significance p control group (p < 0.01). Systolic and diastolic pressure was elevated in the patients with XFS and XFG (p < 0.01). Resistance index was increased in the patients with XFG (p < 0.01). Intimamedia thickness was prolonged in patients with XFG (p < 0.01). Conclusion. A disturbed lipid profile with elevated resistancy index and intima media thickness and increased systolic and diastolic pressure were compulsory findings in patients with developed XFG. So, these factors could be considered as risk. It seems to be difficult to inhibit the process of pseudoexfolation production in the whole body, but it appears that with proper therapy (antihypertnesive, cardiotoncs, etc.) and adequate nourishing, the process of XFG development could be interrupted

Cilioretinal arteries and collateral vessels after occlusion of central retinal artery

© 2018, Inst. Sci. inf., Univ. Defence in Belgrade. All rights reserved. Background/Aim. Central retinal artery occlusion (CRAO) is a disease of the eye where the flow of blood through the central retinal artery is blocked. It causes sudden, painless, unilateral and usually severe vision loss. The aim of our study was to examine significance of cilioretinal artery on collateral and neovasculatization development after occlusion of the central retinal artery. ­ethods. This study retrospectively reviewed all fluorescein angiography (FA) cases with confirmed CRAO and presenting, one or more, cilioretinal arteries on initial examination. The study included patients referred to the Clinic of Ophthalmology, Clinical Center Kragujevac for the examination in the period from January 2010 to January 2015. Ten eyes of 10 patients with confirmed CRAO and existing cilioretinal artery on initial examination were found and analyzed in this study. Results. This study included 10 (6 males and 4 females) patients from 50 to 76 years old (mean 66.3 ± 10.078 years). Visual acuity on initial examination presented on the decimal scale was from 0.01 to 0.2 (mean 0.087 ± 0.066). Intraocular pressure measured by applanation tonometry was in the range from 14 to 20 mmHg (mean 16.7 ± 2.540 mmHg). Cilioretinal artery was revealed on the first FA examination of all eyes. On control FA, in three eyes de novo collaterals were discovered. In the first eye, collaterals were discovered after two months, in the second eye after four months, and in the third eye after seven months of the performing the initial angiogram. Visual acuity was checked after one year. It was from light perception to 0.03 (mean 0.016 ± 0.009). Conclusion. The presence of cilioretinal arteries with preexisting or de novo developed collaterals was not enough to preserve visual acuity and prevent neovascularisation over a longer period after CRAO