PubMed Health⌕ Search

Biomedical subjects

D Petrović

Publications and source records attributed to D Petrović.

At least 19 recordsLinked to original sources
PubMed2000

[Results of IVF treatment methods in Germany in 1998--the German IVF Registry].

We used data in Germany IVF registar 1998 from 86 (94.6%) centers which take upon IVF procedures. The total documentary were treated 46730. The cultivated data were 45459. The visible is increase number of group which use IVF procedures and growth IVF/ICSI centers with options KRYO preservations. In Germany 1998, IVF ICSI, KRYO and GIFT procedures were treated 30,009 women, on an average 1,515 cycles per year. The endurance leaning of children was amoung 2 and 8 years for both procedures. In stimulated cycles on an average were taken 9.04 eggs (follicule punction). During IVF procedures it was 22.64% clinical pregnancy and ICSI procedures 23.53% clinical pregnancy. In most of the cases cycles were stimulated with long gonadotropine protocol, with GnRH-agonists, after suppression adenohypophysis. Considering pregnancies and abortions in addiction to chosen gonadothropine it was not possible to confirm significant difference neither for IVF of ICSI procedures. Results of therapy showed clear addiction to age of women and become worse after 39 the year of life and distintcly less after 49th year for both procedures. During transvaginal ultrasonography follicule punction reported is 253 (0.67%) complications. Severe cases such as ovarial hyperstimulation syndroms (OHSS III) were reported in 1.12% cases.

Female↗
PubMed1997

Prostatic polyp in the prostatic urethra.

The authors report on a case of prostatic polyp in the urethral bulb of a 35-year-old man. The presence of this lesion in the urethral bulb is quite unusual and may be overlooked on cystocopic evaluation.

Adult↗
PubMed1996

Cystosarcoma phyllodes of the prostate.

We report a case of a 40-year-old man with cystosarcoma phyllodes of the prostate. This tumour is very rare in the prostate. The stroma of the tumour was cellular and composed of elongated cells with spindle shaped nuclei, scanty, pale and eosinophilic cytoplasm. Some cells showed nuclear atypia but the cells did not display mitotic activity. We categorised this tumour as benign. The suprapubic prostatectomy was done. The patient is alive and well after three years.

Adult↗
PubMed1996

[Postoperative infection as an indication for hysterectomy after cesarean section].

Even today infection is the most important cause of morbidity and mortality after cesarean section. The aim of this paper is to point to the significance of hysterectomy in treatment of puerperal infection in the contemporary obstetrics. During a 15- year period (1981 - 1995) 85231 deliveries were performed at the Clinic for Gynecology and Obstetrics in Novi Sad (Yugoslavia). There were 8609 (10.10%) cesarean sections. Hysterectomy was performed in 16 cases (0.186%) of women undergoing cesarean section due to dehiscence of uterine suture, endometritis, diffuse peritonitis or sepsis. Infection during delivery was diagnosed in 3 (18.75%) cases, the delivery itself began by amnion rupture in 5 (31.25%) cases, it lasted more than 12 hours in 6 (37.50%) cases. Elective cesarean section was performed in 3 (18.75%) cases, cesarean section during delivery in 13 (81.25%) and iterative cesarean section in 5 (31.25%) cases. Total hysterectomy was performed in 9 (56.25%) cases and subtotal in 7 (43.75%) cases. Postoperative treatment by antibiotics was carried out in all cases. There were postoperative complications after hysterectomy in 7 (43.75%) cases. According to results of microbiologic analyses in 7 (43.75%) cases one cause was determined, while in 9 (56.25%) cases two or more causes were determined. Gram-negative-bacteria were the most common cause (68.75%).

Adult↗
PubMed1990

[The surgical anatomy of the sublingual gland].

Because of its position, the sublingual gland is clinically important especially in the events of injuries and infections in the anterior part of the sublingual region. The morphology and relationships of this gland were studied by dissection methods applied on 80 fresh or formaldehyde fixed preparations of the mouth floor and of the tongue, which were partly (31 preparations) taken out together with the mandible. As for the shape of the gland, three main types were found: the cuneiform type which was the most frequent (71%), the pyramidal type which was less frequent (16%) and the fusiform type (13%) which comprised the case of a very elongated gland (up to 65 mm). The space in which the gland lied had four walls. Its internal wall consisted of the mylohyoid muscle and it comprised the hyoglossus muscle as well when the gland was very elongated. The inferior wall consisted of the mylohyoid muscle and sometimes it comprised also a narrow part of the superior surface of the geniohyoglossus muscle. An osseous depression on the internal side of the mandible represented the external wall of the sublingual gland space. The superior wall is clinically the most significant. It consists of the sublingual mucosa and a sublingual fold. This wall represents a main surgical access to the gland. In edentulous mandibles this mucous fold may be at the level of the upper mandibular border which may hinder the use of the lower dental prosthesis.

Humans↗
PubMed1988

Modification of potentially lethal damage repair by some intrinsic intra- and extracellular agents: I. Proteinases and proteinase inhibitors.

The effects of nine intra- and extracellular proteinases and six proteinase inhibitors on the repair of potentially lethal damage (PLDR) induced by gamma-rays in plateau-phase V79 cells were examined. It was demonstrated that these agents, which are intrinsic factors produced within mammalian cells, can modify PLDR activity. A stimulatory effect on PLDR was seen with calf liver neutral proteinase, and to a lesser extent, with inhibitor pepstatin A. Other proteinases which belong to serine, cysteine and aspartic superfamilies, as well as proteinase inhibitors, inhibited PLDR to different degrees. The effects of some of these agents, present during the PLDR period, on the rate of tritiated thymidine incorporation into the acid-insoluble cell fraction was also examined. They can modify the DNA synthesis of cells when subcultured from plateau phase for the assessment of colony-forming ability. There is no clear evidence that the effects observed are entirely attributed to the alteration of cellular proliferative processes. It seems more likely that many serine and cysteine proteinases and their inhibitors can adversely affect the PLDR process by modulating the activity of proteinase(s) and other enzymes involved more directly in PLDR because of interrelationships of the entire intracellular proteinase system.

Animals↗
PubMed1981

Absence of AET protection against fast neutrons: cellular effects.

A series of experiments has been undertaken in order to test the biological properties of neutrons produced in the cyclotron of the Institute "Ruder Bosković" (IRB) in Zagreb. Protective effect of AET (2-amino ethylisothiuronium bromide hydrobromide) on survival of L cells irradiated by fast neutrons generated in the IRB cyclotron were studied by employing the single cell clonal growth method. For comparison the protective effect of AET after gamma irradiation has also been studied. The most important findings that have emerged from these experiments can be summarized as follows: (1) Protective effect of AET was present after gamma irradiation only. (2) The degree of protection was dependent on AET concentration in the growth medium. (3) No protective effect was found after neutron irradiation. These findings are in agreement with the generally less efficient protection of this compounds after high-LET irradiation.

Animals↗
PubMed1981

[Noise and hearing damage in operators of construction machinery].

Spectral analysis of noise and graphical illustrations of total noise levels at working places of assistants of engineering machines in road building activities were performed. Also, otoscopic and audiometric examinations were carried out in 134 assistants of engineering machines. In spite of a relatively intensive noise of a larger number of the examined machines, new perceptive hearing impairment during army service were not found, except for 10,45% cases detected on the day of entering the Y.P.A. service. Absence of acoustic trauma can be explained by short total exposure since 6 months are spent on road building as well as short daily exposure since the working day lasts four hours for assistants and their helpers when working with engineering machines.

Hearing Loss, Noise-Induced↗
PubMed1979

Dependence of the nucleoside effect on linear energy transfer.

L929 cells were irradiated by cyclotron-produced neutrons and by 14.8 MeV monoenergetic neutrons. For comparison cells were also irradiated by 60Co gamma rays. Following irradiation cells were treated by an equimolar solution of deoxyribonucleosides, and the effect on cell survival measured. Results show that nucleoside treatment was efficient after low-LET irradiation: gamma ray survival curves were altered by deoxyribonucleosides in terms of significantly increased extrapolation numbers only, but without Do change. Cells irradiated by neutrons from either of the two sources did not respond to nucleoside treatment, and consequently their survival curves remained unaltered. These results show that the nucleoside effect does occur after low-LET irradiation, but apparently not following high-LET irradiation. Since deoxyribonucleosides as well as other cell breakdown products are released in irradiated and necrotic tumours due to massive cell destruction, such a nucleoside effect could possibly enhance the cell survival and thus effect the result of radiotherapy. Absence of the nucleoside effect in case of high-LET irradiation may therefore be an additional potential gain from neutrons in radiotherapy.

Animals↗