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Biomedical subjects

D Milanović

Publications and source records attributed to D Milanović.

At least 19 recordsLinked to original sources

Anthropometric characteristics of elite junior male and female javelin throwers.

The purpose of this study was to examine the anthropometric characteristics of elite junior javelin throwers on a sample of eleven male and twelve female finalists of the European Junior Championship in Athletics (MEPA 98). The chosen subjects were measured with a set of nine anthropometric variables, according to the methodology recommended by the International Biological Programme. The results show that no common constitutional type of a junior male or female javelin thrower exists, but that the anthropometric characteristics are very individually defined. At least two constitutional types exist for each gender, ensuring equal success in javelin. Correlational analysis shows that no statistically significant correlations exist between the individual anthropometric characteristics of the male and female throwers with their competitive result. Success in this track and field discipline is therefore more a synthesis of anthropometric characteristics and motor abilities, as well as an optimal technique.

Adolescent↗

Morphologic and kinematic characteristics of elite sprinters.

The purpose of the study was to ascertain the basic morphologic and kinematic characteristics of elite sprinters. The sample included 24 sprinters, with times over a 100 m distance between 10.21 s and 11.19 s. Morphologic characteristics of the sprinters were measured with a test battery of 17 measures, obtained according to the methodology prescribed by the International Biologic Programme (IBP). The kinematic variables were obtained from a flying start 20 m run and a 20 m run with a low start, with the technology of a contact carpet (ERGO TESTER-Bosco). Stride frequency and length, duration of contact and flight phases were registered. Time parameters were measured with a system of infrared photocells (BROWER Timing System). T-test showed that elite sprinters do not differ significantly in morphologic characteristics (p > 0.05) from the 100 m results point of view. However, statistically significant differences were obtained in starting acceleration and maximal velocity. The most important kinematic parameters for generating differences between the elite sprinters are contact time and stride frequency.

Adult↗

Analysis of changes in indicators of functional and motor readiness of female basketball players within one-year training cycles.

The basic goal of this work was the evaluation of functional and motor preparedness of 13 top female basketball players during a one-year training cycle. Across of the six time points the preparedness of subjects was measured by means of a twelve-test battery measuring the basic and specific motor and functional abilities. The experimental training program was the yearly training macrocycle with all its components and duration. The differences among individual measurements in the space of twelve basic and specific functional and motor variables were analyzed by the statistical procedures in the framework of discriminant analyses. In comparison to the first measurement, the players achieved better results in the second, third, fourth, fifth and sixth measurements. On the multivariate level, only the analysis of differences between the first and third measurements indicated statistically significant differences. It can be concluded that the training process executed during the course of the preparation and competition periods (the transitional period was excluded from the analysis) induced positive changes.

Adult↗

Extravesical detrusor tunneling: a variant of antireflux procedure.

Detrusor tunneling procedure is an extravesical technique, which provides antireflux implantation of different tube systems (ureter, appendix, tubularized preputial flap, tapered ileum). The main characteristic of the technique is the formation of extravesical submucosal tunnel by creating a bridge from the unresected bladder muscle under which the tube is passed. During the period from January 1987 to July 1995, the technique was performed on 442 different tube systems: 402 ureters, 12 appendices, 26 tubularized preputial flaps and 2 tapered ileums. Patients were aged from 15 days to 42 years (mean 39 months). Follow-up was from 2 months to 8 years (mean 2.9 years). Postoperative complications occurred in 11 cases. There were 3 stenoses and 5 refluxes in ureteroneocystostomies, and one stenosis and 2 urine leakages in continent cutaneous vesicostomies. The extravesical detrusor tunneling procedure could be a very useful method for antireflux implantation of various tube systems.

Adolescent↗

[Cystic tumefaction in the minor pelvis--the agenesis-dysplasia syndrome (case report)].

UNLABELLED: Ectopic kidney often shows signs of parenchyma maldifferentiation. Multicystic or dysplastic kidney is usually associated with congenital urogenital and skeletal system anomalies. In the Unilateral form of the agenesia-dysplasis syndrome, the kidney, if it is present, is small dysplastic and usually cystically changed. Ipsilateral uterus horn or vaginal agenesia are the most frequently associated anomalies. Case report. A six years old girl was clinically examined due to recurrent urinary tract infections. On ultrasound, the left kidney was enlarged, while the right kidney was absent in normal position. Cystic mass 4x5 cm was seen in the pelvis. The right kidney was not seen on IVP. CT scan showed a cystic formation in the pelvis, described as cystically changed dysplastic kidney. Pelviceal mass was extirpated. Exploration of the genital system revealed vaginal arch blinded in the hypoplastic right uterus horn. On pathohystology tumefaction corresponded to the dysplastic kidney. IN CONCLUSION: unilateral renal aplasia or dysplasia may indicate genital anomalies having in mind the hereditary character of unilateral form of the agenesia-dysplasia syndrome therefore, it could be helpful in prenatal diagnosis of cystic pelvic mass of fetus in families with this syndrome.

Abnormalities, Multiple↗

[Surgical treatment of vesicoureteral reflux by tunnelling of the detrusor muscles].

Detrusor tunnelling is an extravesical surgical procedure of ureteral reimplantation. It is surely the least traumatic method of surgical correction of vesico-ureteral reflux because antireflux mechanism is achieved with minimal detrusor muscle dissection. This procedure simplifies implantation of dilated ureters, double ureters as well as the ureters shortened by previous antireflux surgical procedures. Ureteral tapering is unnecessary. One hundred and forty detrusor tunnelling uretero-cysto-neostomies in 102 patients have been performed in the University Children's Hospital between January 1990 and September 1994. The youngest patient was 1 month old and the eldest was 15 years (mean age 6.8 years). Indications for surgical treatment were primary (45.0%) and secondary (26.4%) megaureter as well as grade IV & V (international classification) vesico-ureteral reflux (28.6%). Follow up was 1-40 months (mean 26 months). Excellent postoperative results were achieved in 130 detrusor tunnelling uretero-cysto-neostomies, i.e. more than 90% of patients. Complication rate was 7.1% (6 patients-10 ureteral units) and about one third were classified as major-postoperative relapses or stenosis or minor-intraoperative mucosal perforation, hematuria, parahiatal diverticulum, spontaneous proximal migration of ureteral double J stent-about two thirds.

Adolescent↗

[Surgery in recurrence of undescended testes].

In the period from Jan. '80 to Dec. '87 at the Pediatric Surgical Clinic in Belgrade 119 patients were operated upon or 147 recurrencies of undescended testes; in 28 cases (23.52%) there were bilateral recurrences. 4 patients were twice unsuccessfully operated on at the same side. The authors analyse the causes of failures of orchiopexy; the proved mistakes were divided into four groups: a) Mistakes due to the undiscovering of the testis, b) unpreparation, or insufficiently preparated the testis from surrounding tissues, c) insufficiently shortening of the testis' way toward the scrotum, and d) mistakes being occasionally arised during the fixation of the testis into the scrotum. During the first unsuccessful operation 20 testes have atrophied, so that a reintervention consisted only in the exploration. In other cases the testis was placed into the scrotum regardless whether it was normal or hypotrophic. In two cases a Fowler-Stephens procedure was carried out, and in one case an autotransplantation of the testis was done. An improvement was found in 89 testes (60.57%), while 38 cases (25.85%) remained with the same characteristics, as they were in the course of our surgical interventions.

Adolescent↗

[Diagnostic and therapeutic significance of percutaneous nephrostomy in children].

During the period from April 1986 to March 1988 on the Pediatric Clinic in Belgrade a total of 12 percutaneous nephrotomies were performed to relieve obstruction of the upper urinary tract. The youngest patient was a two-month old with giant hydronephrosis, and the oldest was a 12-year old girl with an acute kidney obstruction caused by impaction of wedging the poured off stone. The most common reasons for obstruction of the upper urinary tract were congenital stenoses and postoperative scars, urethrocystoneostomia and pyeloplasty. The most frequent clinical manifestations in patients on whom nephrotomy was carried out as an emergency operation were infection, palpable tumor (cyst) and acute kidney insufficiency. Percutaneous nephrostomy was always performed with basal sedation and local infiltrative anesthesia under X-ray control. Surgery was necessary in all cases, but no complications needing surgical intervention occurred. Mild hematuria can be expected at almost every punction, so it should not be treated as a complication. Dislocation of the nephrostoma catheter immediately after surgery can be a complication which necessitates reintervention, but if this happens after more than ten days, the catheter can easily be replaced through the formed fistulous channel. In one case percutaneous placing of the catheter was not possible, so it was placed surgically in the kidney and skin to enable drainage of the infected urinome a month after rupture of the ureteropyelic segment. Percutaneous placing of a catheter through the nephrostoma is the method of choice for urgent and temporary relief of obstructions of the upper urinary system regardless of etiology, and this procedure achieves immediate therapeutic and, if necessary, diagnostic effect which enables recovery of the patient and preparation for definitive surgery which in such a situation could be hazardous.

Child↗

[Stenosis of the external urethral opening as one of the causes of recurrent urinary infections in girls--surgical treatment].

105 middleaged girls (8.4 years) were operated upon at this Clinic because of distal meatal stenosis (DMS) as one of the causes of recurrent urinary infections and/or tenacious dysuria. Meatoplasty, one small surgical intervention, does treat about 78.1% infections of the urinary tract, as well as about 36.8% vesicoureteral reflux (VUR) of the I and II grade. The fibrous ring which is an anatomical alteration of DMS, is primarily obstructive lesion, which is appearing most frequently associated with urinary infection. In one quarter of cases in which a meatoplasty did not show a clinical improvement, one should think over the more radical surgery either at the urinary neck or at the vesico-ureteral junction. Spontaneous improvement or/and regression of VUR, in one third of cases following meatoplasty is an encouraging datum; but this intervention by itself is not a method for its treatment. A small number of complications, one stress incontinence only, demonstrate a reliability of this procedure in selected cases. Meatoplasty and dilatation of stenosed urethral meatus are alternative methods, which give similar results and their use mainly depends on the urologist's affinity to this method.

Adolescent↗

[Successful autotransplantation of intra-abdominal testes into the scrotum using microvascular technics].

The surgical treatment of undescended and nonpalpable testes still remains controversial. The shorter the vascular stem, the greater difficulties are during orchidopexy. The results of the formerly used "stage" and "Loop" techniques are unsure and frequently lead to postoperative atrophy of the testes. Thanks to the marked development of the microsurgical technique, over the past 10 years, besides the conventional methods for orchidopexy of the testes with a short vascular stem, microvascular revascularization on the autotransplanted testes from the abdomen into the scrotum is also used. During the last year two boys were successfully operated upon with this method with which this microvascular anastomosis technique is described and the problems openly discussed.

Adolescent↗

The genetic variation and covariation among fitness components in Drosophila melanogaster females and males.

The results presented in this study indicate low to moderate level of heritable variation for the following fitness components in Drosophila melanogaster sampled from natural population: early and late fecundity of females, virility of males and longevity of females and males. The most striking exception from this are high additive genetic variances for preadult developmental duration in both sexes. Females exhibit significant negative genetic correlations between early and late components of fitness. In contrast to females, we did not observe any measurable correlations between components of fitness in males. Our data suggest that genetic covariance structure between fitness components differs by sex. We also observed significant negative correlations between virility of males and late components of female life history.

Animals↗