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Biomedical subjects

T Chernev

Publications and source records attributed to T Chernev.

At least 37 records · Page 2Linked to original sources

[Asymptomatic infections of the genital tract and infertility].

Diagnosis of male genital tract inflammations plays a significant role in andrology. Although genital infections are often silent they can severely impair male infertility. In seminal plasma of 100 patients were determined IgG and SigA (radial immunodiffusion) the number of peroxydase-positive cells in addition to conventional semen parameters and microbiological investigations. There was carried out quantitative determination of alpha-amylase in connection with semen liquefaction. The results showed that exact quantitation of above mentioned parameters distinguish inflammatory male adnexal affections, which is appropriate for control of anti-inflammatory treatment and facilitates the diagnosis of inflammatory process in andrology.

Adult↗

[Application of low-molecular-weight heparin during pregnancy and delivery in case of reproductive failure due to antiphospholipid syndrome].

The authors report the results of application of low molecular weight heparin during pregnancy, delivery and after birth to counter placental insufficiency in case of primary antiphospholipid syndrome. The patient had been treated with Fraxiparin for 126 days. No systemic or local side effects were spotted. There were no genital bleeding and tromboembolic accidents during pregnancy. A Caesaerean section was carried out under spinal anaesthesia. Fraxiparin treatment was not halted during the section, which was accompanied by a normal blood loss. The pregnancy yielded an eutrophic newborn and no complications were demonstrated during the neonatal period.

Adult↗

[Modern noninvasive methods for terminating pregnancy in the 2nd trimester].

Pregnancy interruption upon medical indications between the 13th and 21st gestational weeks is carried out mainly by two-phase invasive techniques including intraamnial application of NaCl and vaginally prostaglandins, laminarie or solutio rivanoli, followed by a surgical treatment (instrumental revision). Because of its invasive character these techniques can cause severe complications. The application of prostaglandin analogues (P.G.) is safer but it is connected with gastrointestinal side effects and their action is often protrachirated especially "primigravida" with a undeveloped infantile P.V.C.U. the author proposes a highly effective non-invasive technique implementing the following combination: sensibilization with an antiprogestin (synthetic norsteroid--Ru 486), applied perorally: 1 tablet 200 mg; 24 hours before the intracervical (vaginal) insertion of the PGO2 tablet or gel. Results are extremely effective and good: the time for pregnancy interruption is reduced to more than 50% (average 5 to 10 hours), side effects and complications are minimized and the hospital stay is significantly reduced.

Abortifacient Agents, Steroidal↗

[The preoperative preparation of the vagina with Betadine before abortion on demand].

Recent evidence has associated bacterial vaginosis and trichomoniasis with several postoperative complications. We carried out a prospective study aiming to estimate the frequency of vaginitis in women wanting to make an artificial abortion and the possibility to influence this infections by local application of vaginal BETADINE suppositories in all forms of infectious vaginitis: Candida albicans, trichomonas vaginalis and bacterial vaginosis.

Abortion, Legal↗

[Administration of exogenous surfactant in premature very low birth weight infants with RDS].

A retrospective study is carried out with the aim of establishing the effect from surfactant therapy on pulmonary function, survival and complication from intensive therapy on VLBWI with RDS. 67 premature infants below 1500 grams are included in the study divided in 3 groups: I gr.--27 babies treated with Corosurf; II gr.--16 babies treated with Exosurf; III gr.--24 control babies without surfactant. The results show that in spite of relatively lower gestational age and higher incidence of inborn infection in group I, Curosurf treated babies spend shortest time on mechanical ventilation and oxygen therapy showing lower incidence of BPD, IVH and mortality rate.

Case-Control Studies↗

[Second trimester pregnancy termination with and without prostaglandins].

The effectiveness of three methods for second trimester pregnancy termination [TOP) was compared. A retrospective analysis was made in 34 cases with TOP by intraamniotic saline instillation and 19 cases with extra-amniotic appreciation of y ballon-catheter, followed by stimulation of uterine contractions by intravenous oxytocin infusion. The results were compared with the ones in 13 prospectively studied cases in which the extra-amniotic appreciation of the ballon-catheter was preceded by treatment of the cervix with 0.5 mg prostin E2 intracervically. In nulliparous patients the treatment of the cervix with y single dose prostaglandins did not shorten the mean abortion time neither reduced the percentage of unsuccessful and prolonged abortions. In parous patients the abortion time was significantly reduced. No failed or prolonged abortions were registered.

Abortifacient Agents↗

[The use of Curosurf with premature infants--the prevention or treatment of the neonatal RDS].

A randomized clinical prospective study is carried out aiming to compare prophylaxis with Curosurf versus rescue treatment. 28 inborn VLBW I are included: 17 received Curosurf as prophylaxis and 11 controls, who received rescue treatment if indicated. Both groups are similar regarding mean body weight, mean gestational age, dosage of Curosurf, etc. Results underwent statistic analysis. Data from the study shows better effect from prophylaxis with Curosurf: smaller number of babies developed RDS and especially RDS grade III-IV (subsequently less babies needed a second dose of Curosurf); higher PaO2/FiO2 ratio; reduced duration of artificial ventilation and of oxygen therapy; reduced incidence of BPD. Results do not show statistically significant difference, but a tendency for ft. As a conclusion: prophylaxis with Curosurf leads to a decrease in the incidence and severity of RDS and to reduced duration of ventilation support and oxygen therapy.

Biological Products↗

[Pregnancy outcome (perinatal mortality and morbidity) in women with diabetes].

In our study we have 313 cases--100 cases as a control group and 213 cases as a diabetic group. Different types of pregnancy outcome have been studied in these cases (perinatal mortality rate and perinatal morbidity). The most frequent morbidity is from: fetopathy diabetic, congenital malformation, respiratory distress syndrome, preterm delivery, intrapartum traumatic complications (shoulder dystocia, brachial plexus injury, intracranial bleeding, fracture of clavicle), hypoglycemia, hypocalcemia, hyperbilirubinemia.

Adult↗

[The mode of delivery in pregnant diabetics].

In our study we have 313 cases--100 cases as a control group and 213 cases as a diabetic group. We studied in these cases the mode of delivery either spontaneous labour, labour induction, cesarean section, forceps and vacuum delivery.

Bulgaria↗

[Current monophasic hormonal contraception].

Data are presented from an investigation of the use of monophasic contraceptive pills chosen by different age groups. Analyses are made of the data obtained from the Bulgarian Association for Family Planning (BAFP) card index for the last two years. Information is given on the number of observed cycles, type of applied contraceptive pill, aims of their application (contraception, treatment of acne, menstrual disturbances etc.), age of patients, as well as any possible adverse effects--change in blood pressure, bodyweight changes, intermenstrual bleeding, hairiness, breast problems, paraclinical changes, etc. The observed cycles show a very small percentage of adverse effects with hormonal contraception, mainly during the first 2 or 3 cycles, with predominance of intermenstrual bleeding. No bodyweight changes or increased hairiness were observed.

Adolescent↗

[The effect of antenatal corticosteroid prophylaxis in premature newborns with the use of surfactant therapy].

The study is retrospective aiming to elucidate the effect of antenatal corticosteroids (CS) for prevention of RDS in preterm deliveries, followed by surfactant therapy. 28 premature babies from 26 to 31 gest. weeks, receiving Curosurf at birth, were included in the study. They were divided in two groups: group A-17 babies of mothers with CS prophylaxis and group B-11 babies from deliveries without prenatal CS. All babies were followed for incidence and severity of RDS, duration of artificial ventilation and oxygen therapy. Although mean gestational age and body weight are lower in group A, incidence of severe RDS is lower (23.5% versus 36.4% in group B); duration of artificial ventilation with FiO2 > 0.60 and as a whole is smaller (mean 28.9 hrs and 186 hrs v/s 50.3 hrs and 228 hrs resp. in group B; p < 0.05), duration of oxygen therapy is shorter (mean 428 hrs v/s 540 hrs in group B; p < 0.05), smaller is the incidence of pneumothorax, IVH gr. III-IV, inborn infections and death rate although not statistically significant. The conclusion is made that antenatal use of CS improves lung function in premature babies and potentiates the effect of surfactant.

Betamethasone↗

Use of surfactant for prophylaxis versus rescue treatment of respiratory distress syndrome: experience from an Italian-Bulgarian trial.

OBJECTIVE: To show if surfactant applied in different social-sanitary realities as prophylaxis of respiratory distress syndrome (RDS) is equally useful and able to reduce mortality and incidence of 3-4 radiological grade RDS. METHODS AND PATIENTS: Two neonatal intensive care units (NICU) in Italy, one NICU in Bulgaria and one NICU in Romania were involved in a randomized controlled clinical trial of prophylaxis vs rescue treatment of RDS. Babies with gestational age 26-30 wks were randomized before birth to prophylaxis in the delivery-room with 200 mg/kg of porcine surfactant (prophylaxis) or to routine assistance (control). Subsequently the babies developing RDS requiring mechanical ventilation and fraction of inspired oxygen (FiO2) > or = 0.4 to maintain PaO2 about 50 mmHg were allowed to be treated rescue with 200 mg/kg of the same surfactant. To reach end-points of reducing mortality by 40% and incidence of radiological grade 3-4 RDS a total number of 174 patients were required. RESULTS: Due to logistic, practical and social-political problems the study was interrupted after enrollment of 93 babies (61 in Italy and 32 in Bulgaria). The Romanian centre did not start the study because it was impossible in the scheduled times to equip it for mechanical ventilation of the newborn infants. Analysis done on an intention to treat basis did not show significant reductions of mortality and 3-4 radiological grade RDS, even if there was a trend towards a reduction in the babies given prophylaxis. A significantly lower number of babies given prophylaxis required a subsequent rescue treatment compared to controls (p < 0.001). There was no difference in other complications such as intraventricular haemorrhage, air-leak syndromes and infections between prophylaxis and control infants. As regards pulmonary gas exchange, the PaO2/FiO2 ratio was significantly improved in the babies given prophylaxis for the first 12 hours of life vs the controls. CONCLUSION: Even if the study was terminated before term, the analysis of the data shows that prophylaxis with surfactant is equally effective in different social-clinical conditions to improve pulmonary gas-exchange, especially in the first critical hours of life of premature babies.

Analysis of Variance↗

[The use of the preparation Cilest in the practice of the Bulgarian Association for Family Planning].

Data are presented from a questionnaire study on the sexual activity of Bulgarian teenagers as well information on the contraceptive methods chosen by them. The authors inform in short about the activities of the Bulgarian Association for Family Planning (BAFP). Analyses are made of the data obtained from BAFP card-index for the last two years. Information is given on the number of observed cycles, types of applied contraceptive method, aims of their application (contraception, treatment of acne, menstrual disturbances etc.). The attention was concentrated on the third generation contraceptive pills Cilest, on the age of patients, as well as on the adverse effects--change in blood pressure, body-weight changes, intermenstrual bleeding, hairiness, breast problems, paraclinical changes, etc. Underlined is the number of teenagers who seen the BAFP help on problems of contemporary contraception. The observed cycles show a very small percentage of adverse effects with hormonal contraception, mainly during the first 2 of 3 cycles, with predominance of intermenstrual bleeding. No body-weight changes or increased hairiness were observed.

Adolescent↗

[Twin pregnancy. Its incidence].

The authors evaluate changes in the incidence and proportion of the life births by plurality in Mothernal Hospital in Sofia between 1991-1995 and compare it with the incidence of multiple births in other countries in the world. The influence of some factors on the incidence of multiple pregnancy are discussed.

Bulgaria↗

[Unsuccessful contraception among patients seeking abortion on demand].

We have conducted a prospective study aimed to analyse contraceptive use among women seeking for legal abortion in the State University Hospital "Maĭchin dom"--Sofia. Our date demonstrate that the patients were well informed about the existing contraceptive methods. On the contrary the percentage of women-using contraception and especially those, using highly effective ones is relatively low. The patients claim the possible side effects of the high effective contraception as a reason against use.

Abortion, Legal↗