RESUMEN

INTRODUCTION: - At present, surgical strategies for breast cancer patients with >2 lymph nodes (LN) involved differ from those with no or lower degree of nodal involvement. Preoperative assessment of the axilla is less sensitive in patients with lobular carcinoma (ILC) than patients with other histological tumour types. MATERIALS AND METHODS: - A retrospective analysis of axillary staging by palpation, axillary ultrasound (AXUS) and AXUS-guided fine-needle aspiration cytology (FNAC) of 153 patients with ILC diagnosed and operated on between January 2013 and December 2020 was performed. Patients had either sentinel node biopsy or axillary lymph node dissection according to current practice. In period 1, patients had FNAC only when AXUS suggested nodal involvement (n = 106), and in period 2, all ILC patients had axillary FNAC (n = 47). RESULTS: - Of the factors associated with >2LNs involvement, logistic regression suggested only AXUS/FNAC based staging as independent variable for all patients. Patients with AXUS-guided FNAC had a significantly higher proportion of true negative and lower proportion of true positive cases in the P2 period (0 vs 55% and 72% vs 11% for >2 LNs involvement, respectively; both p < 0.0001). CONCLUSIONS: - AXUS-guided FNAC of all ILC patients did not result in improved preoperative identification of patients with >2 metastatic LNs but increased the false-negative rate of the assessment by producing false-negative results in patients who would not have undergone a biopsy due to negative AXUS findings.

Asunto(s)

RESUMEN

OBJECTIVES: The aim of our study was to evaluate placental three-dimensional power Doppler indices in diabetic pregnancies in the second and third trimesters and to compare them with those of the normal controls. METHODS: Placental vascularization of pregnant women was determined by three-dimensional power Doppler ultrasound technique. The calculated indices included vascularization index (VI), flow index (FI), and vascularization flow index (VFI). Uncomplicated pregnancies (n = 113) were compared with pregnancies complicated by gestational diabetes mellitus (n = 56) and diabetes mellitus (n = 43). RESULTS: The three-dimensional power Doppler indices were not significantly different between the two diabetic subgroups. All the indices in diabetic patients were significantly reduced compared with those in non-diabetic individuals (p < 0.001). Placental three-dimensional power Doppler indices are slightly diminished throughout diabetic pregnancy [regression coefficients: -0.23 (FI), -0.06 (VI), and -0.04 (VFI)] and normal pregnancy [regression coefficients: -0.13 (FI), -0.20 (VI), and -0.11 (VFI)]. The uteroplacental circulation (umbilical and uterine artery) was not correlated significantly to the three-dimensional power Doppler indices. If all placental indices are low during late pregnancy, then the odds of the diabetes are significantly high (adjusted odds ratio: 1.10). CONCLUSIONS: A decreased placental vascularization could be an adjunct sonographic marker in the diagnosis of diabetic pregnancy in mid-gestation and late gestation.

Asunto(s)

RESUMEN

BACKGROUND: Some of the most important questions relating to the use of biological therapy in inflammatory bowel diseases concern the duration of maintenance therapy. AIM: To assess the disease course and frequency of relapse of Crohn's disease (CD) following discontinuation of biological therapy, and to determine predictive factors for relapse. METHODS: One hundred twenty-one CD patients who had achieved clinical remission following 1 year of biological therapy and for whom biological therapy was then discontinued participated in this prospective observational study. Eighty-seven CD patients had received infliximab and 34 adalimumab. The definition of relapse was an increase of >100 points in CDAI to at least a CDAI of 150 points. RESULTS: Biological therapy was restarted within 1 year of treatment cessation in 45% of patients. Logistic regression analysis revealed that previous biological therapy (P = 0.011) and dose intensification during the 1-year course of biological therapy (P = 0.024) were associated with the need for and the time to the restarting of biological therapy. Smoking was observed to have an effect that was not statistically significant (P = 0.053). CONCLUSIONS: Biological therapy was restarted a median of 6 months after discontinuation in almost half of Crohn's disease patients in who had been in clinical remission following 1 year of biological therapy. These results suggest that, in the event of the presence of certain predictive factors, biological therapy should probably be continued for more than 1 year by most patients.

Asunto(s)

RESUMEN

AIMS/HYPOTHESIS: We aimed to study diurnal variation in glucose regulation by examining the effects of time of day and fasting duration on fasting plasma glucose (FPG), 2 h post-load plasma glucose (2hPG) and HbA(1c) levels. METHODS: We analysed data from 5,978 non-diabetic white men and women from the prospective Whitehall II Study. All studied participants fasted for at least 8 h before a clinical examination, which included an OGTT and anthropometric measurements. We fitted mixed-effects models for FPG, 2hPG and HbA(1c) as outcome variables, and time of day and/or fasting duration as explanatory variables. Models were adjusted for age, BMI and study phase. RESULTS: Time of day and fasting duration were associated inversely with FPG and positively with 2hPG. The mean difference between measures at 08:00 and 15:00 hours in men/women was -0.46 (95% CI -0.50, -0.42) mmol/l/-0.39 (95% CI -0.46, -0.31) mmol/l and 1.39 (95% CI 1.25, 1.52) mmol/l/1.19 (95% CI 0.96, 1.42) mmol/l for FPG and 2hPG, respectively. HbA(1c) levels were independent of either time. Time of day and fasting duration were independently associated with 2hPG. In contrast, the effect of fasting duration on FPG was markedly attenuated with adjustment for time of day. Ageing, but not obesity, was associated with increased diurnal variation in glucose tolerance. CONCLUSIONS/INTERPRETATION: Both time of day and fasting duration should be considered in clinical practice and epidemiological studies, since they have clinically relevant effects on FPG and 2hPG levels. As biochemically expected, HbA(1c) levels are independent of time of blood sampling and fasting duration.

Asunto(s)

RESUMEN

The aetiology of childhood acute lymphoblastic leukaemia has been linked with spatially heterogeneous environmental exposures. The presence of spatial clustering would be consistent with geographically localized environmental exposures over long periods of time. The present study is the first to examine spatial clustering amongst children aged 0-4 years using population-based data from Hungary. The data set consisted of 134 children diagnosed with acute lymphoblastic leukaemia who were resident in part of Hungary during the period 1981-2000. Two levels of spatial aggregation were examined: counties and settlements. The Potthoff-Whittinghill and Moran I autocorrelation methods were used to test for spatial clustering. Additionally, an evaluation of the environmental changes during the study period was considered. Specifically analyses were carried out on sub-periods to investigate a possible effect of the Chernobyl catastrophe. There was statistically significant spatial clustering both at the county (estimate of extra-Poisson variation [Formula: see text], P = 0.04) and settlement levels (estimate of extra-Poisson variation [Formula: see text], P = 0.0003). At county level, the finding was attributable to clustering amongst female cases, but at settlement level, the finding was limited to male cases. There was significant spatial autocorrelation in the sub-periods immediately following the accident (1986-1990 & 1991-1995), but not before 1986, nor after 1995. A significant autocorrelation was observed during the 5 year period immediately following the accident (1986-1990, global Moran I = 0.1334, p = 0.005). The centre of significant excesses of ALL cases was located in the county of Baranya. Our study is consistent with an environmental aetiology for acute lymphoblastic leukaemia in children associated with constant exposure to an, as yet unknown, environmental factor in small geographical areas. Although a possible effect of the Chernobyl accident was found in the autocorrelation analysis, the role of chance cannot be excluded.

Asunto(s)

RESUMEN

In situ hybridization, quantitative reverse transcription polymerase chain reaction (RT-PCR), immunohistochemistry, and Western blot analysis were applied to study the changes in expression of the major nociceptive ion channel transient receptor potential vanilloid type 1 receptor (TRPV1) after the perineural application of capsaicin or nerve transection. In control rats, quantitative morphometric and statistical analyses of TRPV1 protein and mRNA expression in L5 dorsal root ganglion cells revealed distinct populations of small (type C) and small-to-medium (type B) neurons, which showed very high and moderate levels of TRPV1, whereas larger (type A) neurons mostly did not express this receptor. After either transection or capsaicin treatment of the sciatic nerve, immunohistochemistry and Western blotting demonstrated a massive (up to 80%) decrease in the proportion of TRPV1-immunoreactive neurons and TRPV1 protein at all postoperative survival times. In situ hybridization indicated marked decreases (up to 85%) in the proportion of neurons that expressed TRPV1 mRNA after sciatic nerve transection. In contrast, although perineural treatment with capsaicin resulted in similar substantial decreases in the proportions of type B and C neurons of the L5 dorsal root ganglia 3 days postoperatively, a clear-cut tendency to recovery was observed thereafter. Hence, the proportions of both type B and C neurons expressing TRPV1 mRNA reached up to 70% of the control levels at 30 days postoperatively. In accord with these findings, quantitative RT-PCR revealed a marked and significant recovery in TRPV1 mRNA after perineural capsaicin but not after nerve transection. These observations suggest the involvement of distinct cellular mechanisms in the regulation of the TRPV1 mRNA expression of damaged neurons, specifically triggered by the nature of the injury. The present findings imply that the antinociceptive and anti-inflammatory effects of perineurally applied capsaicin involve distinct changes in neuronal TRPV1 mRNA expression and long-lasting alterations in (post)translational regulation.

Asunto(s)

RESUMEN

Specialized intestinal metaplasia (SIM) is considered as a premalignant condition of the esophagus, but other types of esophageal metaplasia are commonly neglected. A standardized histopathological analysis was focused not only on SIM but also on the presence of metaplastic processes typical of additional glands. A morphological study using standardized histopathological tests was carried out between 2004 and 2007, with biopsies taken from esophageal mucosa of 826 consecutive patients. Mean age and male : female ratio of patients were 55.6 ± 14.7 and 1.1 : 1, respectively. Only 4.1% (n = 34) of all cases proved to have SIM. The remainder of the cases (n = 615; 74.4%) contained cardiac-fundic mucosa without SIM. Some samples exhibited superficial mucous glands, pancreatic acinar metaplasia (PAM), and ciliated metaplasia accounting for 24% (n = 198), 14.9% (n = 123), and 0.2% (n = 2), respectively. SIM was colocalized with superficial mucous glands (103/198 superficial mucous gland cases; P < 0.001). Low-grade dysplasia (n = 51; 6.2%) and high-grade dysplasia (n = 9; 1.1%) were found mainly in SIM (37/51; 9/9; P = 0.071) with male preponderance (3 : 1 at low-grade and 2 : 1 at high-grade dysplasia). PAM was found mainly in cases without dysplasia (103 of 123 pancreatic metaplasias; P < 0.001). SIM alone in the esophagus is rare, and its frequent association with cardiac mucosa-type metaplasia testifies to transition of mucinous-goblet cell through pseudogoblet cells. PAM rather indicates absence of dysplasia, but superficial mucous glands predicts that SIM follows dysplasia.

Asunto(s)

Asunto(s)

RESUMEN

This study was carried out to determine the prevalence and risk factors of genital HPV infection in women diagnosed with non-negative cytology in Southeastern Hungary. Cervical samples were collected for cytology and HPV testing from women seen at gynaecological outpatient clinics and diagnosed with non-negative cytology. The observed overall average HPV infection rate was found to be 61%. A smoking habit was the only risk factor in the logistic regression analysis that related significantly to exposure to HPV infection. Thus, prevention strategies should focus on the regular clinical cytological screening of HPV-infected patients and on the reduction of smoking.

Asunto(s)

RESUMEN

The objective of the study in rats was to investigate the anti-inflammatory effects of pure meloxicam (ME) with different particle sizes and of physical mixtures of the binary ME-mannitol system. The level of local inflammation was significantly decreased when the amount of mannitol was the highest and the particle size of ME was the lowest as well as the components had the interparticulate interaction. The same results were achieved in in vitro experiments.

Asunto(s)

RESUMEN

UNLABELLED: The high cost of infliximab inhibits the regular retreatment of all patients in Hungary with Crohn's disease (CD) after beneficial induction therapy. This study is set out to evaluate the medium-term efficacy of induction therapy with infliximab without retreatment in CD patients with chronic activity and/or fistulae refractory to conventional therapy. METHODS: A retrospective 1-year review was undertaken of all CD patients with successfully induced remission or fistula closure with 3 infusions of infliximab. Infliximab was administered in a dose of 5 mg/kg 3 times, in weeks 0, 2 and 6. Clinical remission was defined as symptom resolution and an estimated Crohn's Disease Activity Index (CDAI) <150 and complete fistula closure. We evaluated the clinical response, the estimated CDAI, the number of draining fistulae, the dosages of steroid and immunosuppressive drugs at 6 and 12 months after the last infusion, and the needs for hospitalization and surgical intervention during this period. Breslow (Generalized Wilcoxon) test was used as the statistical method. RESULTS: The data of the 50 patients (19 luminal, 31 fistulizing disease; average age 29. 3 [13-59] years, disease localization: 23 colon, 13 ileum, 13 ileocolon, 1 duodenum) were suitable for analysis. Infliximab induction therapy without retreatment resulted in a beneficial effect lasting for at least 1 year in 22 of the 50 patients (44%). 11 of the 19 patients (57.9%) with luminal disease remained in steroid-free complete remission, while the fistulae persisted closed in only 11 of the 31 patients (35.5%) (p<0.05). CONCLUSION: Infliximab induction therapy alone may result in sustained remission mainly in patients with luminal disease. These results suggest the need for maintenance therapy with infliximab after successful therapy induction in patients with fistulae, while luminal CD patients could possibly participate in regular retreatment only if needed. If these data are confirmed, this modification of the therapeutic procedure could well increase the cost-effectiveness of infliximab.

RESUMEN

BACKGROUND: NOD1/CARD4, a member of the pattern-recognition receptor family, is a perfect candidate as a susceptibility gene for Crohn's disease. Since only limited and conflicting data are available on G796A polymorphisms in inflammatory bowel disease patients, we set out to study the effect of this polymorphism on the susceptibility and course of Crohn's disease in the Hungarian population. METHODS: Four hundred thirty-four unrelated Crohn's disease patients (age at presentation: 28.6+/-9.6 years, female/male: 210/224, duration of Crohn's disease: 8.2+/-6.9 years) and 200 healthy subjects (blood donors) and 136 non-inflammatory bowel disease gastrointestinal controls with chronic gastritis were investigated. NOD1 G796A was detected by using polymerase chain reaction/restriction fragment length polymorphism. Detailed clinical phenotypes were determined by reviewing the medical charts. RESULTS: The frequencies of the variant alleles of NOD1 G796A differed significantly between the Crohn's disease patients and both healthy (GG 49.5% vs. 67%; AG 41.5% vs. 28%; and AA 9.0% vs. 5.2%; p<0.0001) and non-inflammatory bowel disease controls with chronic gastritis. Carriage of the single nucleotide polymorphism of NOD1 G796A proved to be a highly significant risk factor for Crohn's disease compared to both healthy (p<0.0001, OR: 2.1, 95% CI: 1.5-2.9) and non-inflammatory bowel disease controls with chronic gastritis (p=0.008). Significant associations were not found between the different genotypes and the demographic data on the patients or the clinical characteristics of Crohn's disease. The different polymorphisms of pattern-recognition receptors (e.g. NOD2/CARD15 SNP8, SNP12 and SNP13 mutations, the TLR4 D299G polymorphism and NOD1 G796A) did not reveal a mutual basis. CONCLUSIONS: Our results suggest that carriage of the NOD1 G796A mutation increases susceptibility for Crohn's disease in the Hungarian population.

Asunto(s)

RESUMEN

AIMS: We hypothesized that an increased serum insulin level in early pregancy reflects an increased demand on the compensatory capacity of the pregnant woman, and can serve as a predictor of gestational diabetes mellitus (GDM). METHODS: A 2-h, 75-g oral glucose tolerance test (OGTT), with fasting and 2-h postprandial serum insulin determination, was performed in 71 pregnant women with one or more risk factors for GDM before gestation week 16. In 64 patients, subsequent OGTTs were performed at gestation weeks 24-28, and in the event of a negative result, at gestation weeks 32-34. RESULTS: Insulin determination at fasting and at 120 min had sensitivities of 69.2% and 92.3%, and specificities of 96.4% and 85.7%, respectively, for the prediction of GDM at gestation weeks 24-28. The sensitivities decreased to 33.3% and 75.0%, respectively, for the prediction of GDM at gestation weeks 32-34. Insulin determination at fasting and at 120 min had positive predictive values of 0.90 and 0.75, respectively, for the prediction of GDM at gestation weeks 32-34. The negative predictive values of fasting and 120-min serum insulin determination at gestation week < or = 16 were 0.87 and 0.96, respectively, for the prediction of GDM at gestation weeks 24-28. Increased serum insulin levels both at fasting and 120 min before gestation week 16 were very strong predictive factors for GDM by gestation weeks 32-34 with an odds ratio of 16.6 and 13.3, respectively. CONCLUSIONS: Serum insulin determination at gestation week < or = 16 is an easy and reliable method with which to predict GDM in a high-risk group. Despite a negative OGTT, patients with an elevated fasting and/or 120-min serum insulin level at gestation week < or = 16 should be managed in the same way as those with GDM. Considering the very high negative predictive value of the method, patients with a normal fasting and/or 120-min serum insulin level at gestation week < or = 16 should undergo an OGTT only at gestation weeks 32-34.

Asunto(s)

RESUMEN

The pathological steroid biosynthesis of a virilizing ovarian tumor was examined via high performance liquid chromatography-radioimmunoassay (HPLC-RIA) determination of the intratissular steroid concentrations. Sex cord-stromal tumor of the ovary was obtained surgically from an 18-year-old female patient with extremely high androst-4-ene-3,17-dione (4-en-dione) and testosterone (Test) blood serum levels. The tissue specimen was extracted with ethyl acetate and the extract was then purified on a C18 mini-column with methanol-water eluents. Steroids were isolated by reversed-phase HPLC on a C18 silica gel column with 51%, 55% and 64% v/v methanol-water eluents. Steroids in the collected eluent fractions were detected by the radioactivity of tritiated internal standards and then quantified by specific RIAs. In the tumor specimen, very high 17alpha-hydroxyprogesterone (17-OH-Prog; 6300 fmol/g), dehydro-epiandrosterone (2870 fmol/g), androst-4-ene-3,17-dione (3000 fmol/g), testosterone (5700 fmol/g) concentrations, and less progesterone (PROG; 320 fmol/g) and androst-5-ene-3beta,17beta-diol (5-en-diol; 320 fmol/g), were determined. Tissue levels of 5alpha-dihydrotestosterone (DHT), 5alpha-androstane-3alpha,17beta-diol (3alpha-diol), 5alpha-androstane-3beta,17beta-diol (3beta-diol), and 17beta-estradiol were found to be 71, 20, 28, and 12 fmol/g, respectively. Steroid profile analysis verified a pathological steroid biosynthesis in the ovarian tumor and suggested that the 17alpha-hydroxylase (17alpha-H), 17,20-lyase (17,20-L), and 3beta-hydroxysteroid dehydrogenase/Delta5-4-isomerase (Delta5-3beta-HSD) activities were particularly elevated in this tumorous tissue. Present data demonstrate that the analysis of intratissular steroid profile by a HPLC-RIA method may valuably contribute to the steroidal pathophysiology of endocrine tumors.

Asunto(s)

RESUMEN

Tobacco represents the single most preventable cause of disease and death in the world today. There were an estimated 3 million deaths annually at the end of the 20th century and it has been estimated that this will rise to more than 10 million by 2030. A disproportionate share of the burden of mortality is already being borne in the Russian Federation and the countries of Eastern Europe. For example, some of the highest rates worldwide of cigarette consumption and smoking prevalence are in the Czech Republic, Hungary and Poland. Cancer is one of the major tobacco-related causes of disease and death and Hungary has the highest male incidence rates in the world for both oropharyngeal and lung cancer. A consequence of this is that the mortality rate of middle-aged (50-60-year-old) men in Hungary today is higher today than it was in the 1930s, particularly among the lower socioeconomic groups. Of the many different approaches to tobacco cessation and control, advice or intervention by healthcare professionals ranks high in effectiveness; a recent survey indicated that requests from healthcare professionals to quit ranked second in effectiveness after requests by the smoker's own family. If healthcare professionals are to play a role in reducing death and disease from tobacco related cancers it is necessary to assess the attitudes and behaviours among healthcare professional students. Our survey assesses perceptions, behaviour and consequences among university students.

Asunto(s)

RESUMEN

In a retrospective cohort study of 673 787 live births in the Northern Region of England, 1975-1994, we investigated whether a higher level of population mixing around birth was a risk factor for solid tumours, by diagnostic group (Hodgkin's disease, brain and spinal tumours, neuroblastoma, other solid tumours), diagnosed during 1975-2001 under age 15 years. Logistic regression was used to relate risk to population mixing, based on (i) all movers and (ii) incomers from outside the region. Both ward and county district level analyses were performed. There was a decreased risk of brain and spinal tumours with increasing population mixing based on incomers from outside the region (OR for trend across three categories=0.79, 95% CI: 0.66-0.95, P=0.01 in the ward level analysis). Although this may be because of chance, it is consistent with a role of exposure to infection and immunological response in the aetiology of these tumours. For other tumour groups, there was no consistent evidence of an association between risk and population mixing.

Asunto(s)

RESUMEN

In a retrospective cohort study of all 99 976 live births in Cumbria, 1975-1992, we investigated whether higher levels of community infections during the mother's pregnancy and in early life were risk factors for solid tumours (brain/spinal and other tumours), diagnosed 1975-1993 under age 15 years. Logistic regression was used to relate risk to incidence of community infections in three prenatal and two postnatal quarters. There was an increased risk of brain/spinal tumours among children exposed around or soon after birth to higher levels of community infections, in particular measles (OR for trend=2.1, 95%CI : 1.3-3.6, P=0.008) and influenza (OR for exposure=3.3, 95%CI : 1.5-7.4, P=0.005). There was some evidence of an association between exposure to infections around and soon after birth and risk of other tumours, but this may have been a chance finding. The findings are consistent with other recent epidemiological studies suggesting brain tumours may be associated with perinatal exposure to infections.

Asunto(s)

RESUMEN

BACKGROUND: A multicentre epidemiological survey was carried out in order to determine the prevalence of, and risk factors for, persistent cervical human papillomavirus (HPV) infection in women in Hungary. METHODS AND RESULTS: A total of 728 women were examined for the prevalence of HPV. The estimated overall rate of HPV infection was 17%. In univariate analysis the strongest predictors were young age (< or =24 years), unmarried family status, smoking, a pathological Papanicolaou (Pap) smear, having a condyloma and previous gynaecological cancer in the family (age and marital status being the most important predictors). In multiple regression analysis, young age (< or =24 years)(odds ratio = 1.86, 95% confidence interval = 1.19-2.90, P < 0.01), smoking (1.78, 1.17-2.71, P < 0.05), an abnormal Pap smear (6.92, 2.68-17.84, P < 0.001), having a condyloma (4.22, 1.42-12.58, P < 0.01) and living in a region where the unemployment rate is relatively high (1.56, 1.24-2.82, P < 0.01) were associated risk factors for HPV infection. CONCLUSIONS: The prevalence of HPV infection in young women in Hungary is high. Screening for HPV is suggested only in women with an unfavourable gynaecological history who are < or =24 years old.

Asunto(s)

RESUMEN

Along with crown-rump length (CRL), the size (diameter) of embryonic structures such as gestational sac (GS) and yolk sac (YS) may have prognostic value for embryonic development. We proposed that first-trimester volume calculations of these structures using transvaginal three-dimensional ultrasound technique may have value as predictors of adverse reproductive outcome. Forty-nine consecutive patients (treated for infertility) with singleton pregnancies were included in this prospective study. Seventy-three examinations were performed in case of pregnancies with normal, and 12 with abnormal outcome. GS and YS volumes were plotted against gestational age (GA) (25-65 days post ovulation) to create nomograms for normal outcome and the same procedure was carried out with CRL measurements as well. Measurements of abnormal pregnancies were compared with these nomograms. Specificity, sensitivity, positive and negative predictive values were also calculated. Regression analysis revealed a power correlation between GS volumes and GA, logarithmic relationship was observed when YS volumes were plotted against GA. CRL showed logarithmic correlation with GA as well. Both GS volumetry and CRL measurements proved to have statistically significant predictive value for adverse outcome (p<0.05). However, no statistically significant difference was found when YS volumes of normal and abnormal pregnancies were compared. Specificity, sensitivity, positive and negative predictive values of GS volumes and CRL were similar. Mean YS/GS ratios also had good predictive values (p<0.05). Volume determination of YS and GS can be performed quickly and simply applying three-dimensional sonography. Volumetry of GS proved to be a sensitive predictor for pregnancy outcome and can be a good supplement to CRL measurements.

Asunto(s)

RESUMEN

BACKGROUND: A multicenter survey was carried out in order to determine the prevalence and risk factors for Chlamydia trachomatis infection in the population of asymptomatic women in Hungary. Results were used to carry out a cost-effectiveness analysis of screening for chlamydial infection in women with asymptomatic genital infections. METHODS: The non-amplified nucleic acid hybridization method (PACE 2 Gen-Probe) was used to diagnose C. trachomatis and Bayes' theorem was applied to assess the prevalence of the infection. Multiple logistic regression analysis was performed to differentiate the risk factors for chlamydial infections. RESULTS: According to the test, the prevalence of Chlamydia trachomatis among 1300 pregnant women was 4.5%. The sensitivity and specificity of the test are estimated to be 70% and 99%, respectively. After Bayes' correction, the overall estimated prevalence of chlamydial infection was 5.1%. There were significant differences in proportions of chlamydial infection in different regions, and also in different age groups and different family status groups. The highest rate was for women aged below 20 years: 16.9%. Cost-effectiveness analysis, with associated sensitivity analysis was carried out for women aged below 20 years. Three screening strategies were compared: using the ELISA method, using amplified Gen-Probe method and no screening. The amplified Gen-Probe method was best provided, the infection prevalence exceeded 16.7%, the PID rate exceeded 24% and the probability of tubal infertility in untreated women exceeded 25%. CONCLUSION: We conclude that screening with amplified Gen-Probe assays (followed by treatment of positive patients) is the preferred screening strategy for young women in Hungary.

Asunto(s)