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Biomedical subjects

J Jirous

Publications and source records attributed to J Jirous.

At least 19 recordsLinked to original sources
PubMed2002

A favorable outcome of pregnancies in women with primary and secondary recurrent pregnancy loss associated with antiphospholipid syndrome.

OBJECTIVE: To study the outcome of pregnancies in women with primary and secondary recurrent pregnancy loss associated with antiphospholipid syndrome treated with the standard treatment regimes including intravenous immunoglobulin (IV Ig). METHODS: Forty three patients with recurrent pregnancy loss associated with antiphospholipid syndrome diagnosed before pregnancy and subdivided into primary (18) and secondary (25) subgroups were closely monitored all through pregnancy with serial blood tests and ultrasonography until the pregnancy ended in miscarriage or delivery. The patients were treated with low-dose aspirin and heparin and or steroids and IV Ig given to some selected patients. The maternal and fetal outcomes were analysed. RESULTS: The mean age of the patients in the primary subgroup (24.60 +/- 4.30) years was significantly lower than the mean age of the secondary recurrent pregnancy loss group (31.50 +/- 4.50) years, (p < 0.0001). 85.00% of all the previous miscarriages were in the first trimester. There was no significant difference in the incidence of live births in the primary (77.80%) and secondary (84.00%) groups, (p > 0.05); the babies were of normal birth weight. The incidence of caesarean section in the primary and secondary groups, 22.23% and 12.00% respectively, were not significantly different (p > 0.05). Intravenous immunoglobulin added to the standard therapy resulted in 100% live births. Maternal complications were negligible. CONCLUSIONS: The fetal and maternal outcome of pregnancies in patients with primary and secondary recurrent pregnancy loss associated with antiphospholipid syndrome were virtually identical and quite satisfactory. Intravenous immunoglobulin added to the standard therapy resulted in excellent fetal and maternal outcome, although its definitive role will have to wait for the outcome of randomised trials.

Abortion, Habitual↗
PubMed2001

A correlation of the uterine and ovarian blood flows with parity of nonpregnant women having a history of recurrent spontaneous abortions.

The aim of this prospective study was to explore the relationship between the incidence of recurrent spontaneous abortions (RSA) and values of Doppler indices characterizing the uterine and ovarian flows in nonpregnant women with a history of primary and secondary RSA using color, power and pulsed Doppler transvaginal ultrasonography. A total of 19 healthy women as a control group A and 81 women with a history of RSA as a study group B were examined on the 21st day of a regular menstrual cycle. Our study demonstrated the presence of significantly decreased uterine and ovarian blood flows in women with primary and secondary RSA if more than 3 abortions had occurred. The obtained values were less favorable in the primary RSA compared with the secondary RSA cases.

Abortion, Spontaneous↗
PubMed2000

Middle cerebral artery to umbilical artery resistance index ratio in the prediction of neonatal outcome.

OBJECTIVE: The objectives of this study were to evaluate the usefulness of the middle cerebral artery to umbilical artery resistance index ratio (C/U ratio) as a predictor of adverse perinatal outcome, and to show that the absence of fetal umbilical artery end-diastolic velocity (AEDV) in SGA fetuses is associated with high morbidity and mortality. METHOD: In this prospective study, color Doppler flow imaging was used for the estimation of the C/U ratio in fetuses that were small for their gestational age, in 70 singleton pregnancies between 29 and 42 weeks of gestation. The subjects were categorized into two groups, with Group A consisting of 35 small for gestational age (SGA) fetuses with a normal C/U ratio (1.05 or higher), and Group B comprising 35 SGA fetuses with an abnormal C/U ratio (below 1.05). RESULT: The mean C/U ratio values for birth weight and gestational age were higher in group A than in group B. Fetuses born to mothers in group B stayed longer in the neonatal special care unit (NSCU), whereas the period from ultrasound examination to delivery was higher in the cases in group A. A higher percentage of mothers with an abnormal C/U ratio underwent cesarean section. Fetuses with an absent end-diastolic velocity of the umbilical artery had a higher morbidity. Three stillbirths occurred in fetuses with an absent end-diastolic velocity of the umbilical artery. CONCLUSION: Our results suggest that the C/U ratio is a good predictor of neonatal outcome, and could be used to identify fetuses at risk of morbidity and mortality. Fetal umbilical artery AEDV with intrauterine growth restriction is associated with high perinatal morbidity and mortality.

Adult↗
PubMed1998

[Present problems with rubella in the Czech Republic Army].

The authors evaluate the proportion of subjects susceptible to rubella infection based on serological investigations and the possible development of epidemics in units of the Czech Army. New aspects of the problem of rubella are outlined: a higher incidence of the disease in adolescents and young adults, possible re-infection, loss of typical cyclic character of epidemics in the Czech Army, incidence of new complications among conscripts and suggested provisions for prevention and in the event of occurrence of the disease in army units.

Adolescent↗
PubMed1990

An immunological study of Lyme disease.

84 patients in the second or third stages of serologically diagnosed Lyme disease suffering from different forms of central as well as peripheral nervous system involvement were tested for the participation of autoimmune mechanisms. Cell hypersensitivity to the encephalitogenic basic protein and to antigens from peripheral myelin was evaluated on an Opton cytopherometer according to the effect of the macrophage slowing factor--liberated during short-term incubation of sensibilized lymphocytes by the respective antigen--on the mobility of tannin-treated sheep red blood cells in an electric field. Judged by the presence of autoimmune reactions. Lyme disease has come to occupy a prominent position compared with previously examined other types of neuroinfections. An explanation can be sought in disordered immunoregulating mechanisms, even though the changes in total and active T lymphocytes were not statistically significant. Data on immunological changes are relevant for the indication of immunomodulating therapy as a suitable complement to antibiotic treatment.

Adolescent↗
PubMed1990

[Cutaneous forms of Lyme borreliosis in children].

Thirty-seven children with skin manifestations of Lyme borreliosis (31 with erythema chronicum migrans and six with lymphadenosis benigna cutis) were treated and followed up prospectivelly for 1-24 months (mean 7.58 months). The diagnosis was confirmed serologically by the finding of increased levels of antiborrelial antibodies assessed by the ELISA method, using antigen from Borrelia recurrentis, in a total of 87% patients with erythema chronicum migrans and in all patients with lymphadenosis benigna cutis. In nine patients the dermatoses were associated with general non-characteristic symptoms, after antibiotic treatment in five patients temporary fatigue, arthralgia and gastrointestinal complaints were observed. No extradermal organ complications were present. The authors discuss the clinical pictures of erythema chronicum migrans and lymphadenosis benigna cutis in children, mention diagnostic criteria and the recommended pattern of treatment.

Adolescent↗
PubMed1989

[Immunologic study of Lyme borreliosis].

In 84 patients in the second or third stage of serologically proved Lyme borreliosis suffering from different forms of central and/or peripheral nervous system involvement the participation of autoimmunological mechanisms was investigated. The cellular hypersensitivity to encephalitogenic basic protein and to antigens from peripheral myelin was evaluated on the cytopherometer Opton according to the influence of macrophage slowing factor--liberated during the short-term incubation of the sensibilized lymphocytes with specific antigen--on the mobility of tanned sheep red blood cells in the electrical field. The frequency of positive findings in comparison with the results in other types of neuroinfections, examined previously, put the Lyme borreliosis on the first place. The explanation of this fact may be seen in the immunoregulatory disturbances, even though the changes of the total and active T lymphocytes were not significant. The knowledge of immunological changes is very important for the indication of immunomodulating procedures suitably complementing the treatment by antibiotics.

Adolescent↗
PubMed1989

Ultrastructure of Borrelia burgdorferi in tissues of patients with Lyme disease.

Spirochetal organisms were sought in 18 skin and 4 synovial membrane specimens obtained by biopsy from 22 Lyme disease patients. The presence of spirochetes in body tissues was histologically demonstrated in one patient with lymphadenosis benigna cutis, one patient with acrodermatitis chronica atrophicans and in one patient with active arthritis. The organisms were 5-30 microns long and 0.12-0.25 microns thick, had 8 or 11 flagella arising from both ends of the body, and their ultrastructure was analogous to that of cultured Borrelia burgdorferi strains. They were located intra- or perivascularly, or in the collagenous connective tissue of the skin and synovium. This implies that Lyme spirochetes may have a potential to survive in body tissues and cause injury to blood vessels.

Antibodies, Bacterial↗
PubMed1989

Detection of Borrelia in the synovial tissue from a patient with Lyme borreliosis by electron microscopy.

We describe a woman who suffered for several years from joint pain with subsequent development of arthritis of her left knee. Because of these symptoms she was subjected to repeated studies including arthroscopy and menisectomy. IgG antibodies to Borrelia determined by ELISA were reported to be present and showed an increase of IgG titer to 1:1024. Histology from the last synovial biopsy disclosed only evidence of a nonspecific synovitis and marked inflammatory infiltration with lymphocytes and plasma cells. Borrelia-like structures were detected electron microscopically on semithin Epon sections from the lumen of the strongly infiltrated blood capillary. In our case the detection of Borrelia indicated the basis for increase of antibodies against Borreliae. It established the correct diagnosis and led to specific therapy of the disease after several years of unsuccessful attempts to control it.

Antibodies, Bacterial↗