Waldemar Naves do Amaral

Congenital toxoplasmosis and prenatal care state programs

BackgroundControl programs have been executed in an attempt to reduce vertical transmission and the severity of congenital infection in regions with a high incidence of toxoplasmosis in pregnant women. We aimed to evaluate whether treatment of pregnant women with spiramycin associated with a lack of monitoring for toxoplasmosis seroconversion affects the prognosis of patients.MethodsWe performed a prospective cohort study with 246 newborns (NB) at risk for congenital toxoplasmosis in Goiânia (Brazil) between October 2003 and October 2011. We analyzed the efficacy of maternal treatment with spiramycin.ResultsA total of 40.7% (66/162) of the neonates were born seriously infected. Vertical transmission associated with reactivation during pregnancy occurred in 5.5% (9/162) of the NB, with one showing severe infection (systemic). The presence of specific immunoglobulins (fetal IgM and NB IgA) suggested the worst prognosis. Treatment of pregnant women by spiramycin resulted in reduced vertical transmission. When infected pregnant women did not undergo proper treatment, the risk of severe infection (neural-optical) in NB was significantly increased. Fetal IgM was associated with ocular impairment in 48.0% (12/25) of the fetuses and neonatal IgA-specific was related to the neuro-ophthalmologic and systemic forms of the disease. When acute toxoplasmosis was identified in the postpartum period, a lack of monitoring of seronegative pregnant women resulted in a higher risk of severe congenital infection.ConclusionTreatment of pregnant women with spiramycin reduces the possibility of transmission of infection to the fetus. However, a lack of proper treatment is associated with the onset of the neural-optical form of congenital infection. Primary preventive measures should be increased for all pregnant women during the prenatal period and secondary prophylaxis through surveillance of seroconversion in seronegative pregnant woman should be introduced to reduce the severity of congenital infection in the environment.

HIV, reproductive aging, and health implications in women: a literature review.

Infection by the human immunodeficiency virus (HIV) is increasing among women. After the advent of highly active antiretroviral therapy (HAART), a decrease occurred in the mortality rate, which now seems to have stabilized. One of the consequences of this current situation is that more and more HIV-infected women are now reaching menopause. Therefore, factors often investigated in seronegative women need to be evaluated in middle-aged, HIV-positive women. In midlife, HIV-positive women will experience the onset of menopause, while concomitantly they may also be affected by metabolic complications related to the HIV infection and to HAART. This literature review was therefore carried out to identify studies dealing with conditions related to middle-aged women with HIV with the aim of providing data on age at menopause, menopausal symptoms, reproductive hormones, cognitive function, bone mineral density, cardiovascular disease, and lipid and glucose metabolism in middle-aged women with HIV and discussing these issues. Some of these factors may be aggravated by the HIV infection and by HAART. The prevention and treatment of these conditions in middle-aged, HIV-positive women are discussed in the light of current knowledge.

Congenital toxoplasmosis: evaluation of serological methods for the detection of anti-Toxoplasma gondii IgM and IgA antibodies.

A study was carried out to evaluate the presence of serological markers for the immunodiagnosis of the vertical transmission of toxoplasmosis. We tested the sensitivity, specificity and predictive values (positive and negative) of different serological methods for the early diagnosis of congenital toxoplasmosis. In a prospective longitudinal study, 50 infants with suspected congenital toxoplasmosis were followed up in the ambulatory care centre of Congenital Infections at University Hospital in Goiânia, Goiás, Brazil, from 1 January 2004-30 September 2005. Microparticle Enzyme Immunoassay (MEIA), Enzyme-Linked Fluorescent Assay (ELFA) and Immune-Fluorescent Antibody Technique (IFAT) were used to detect specific IgM anti-Toxoplasma gondii antibodies and a capture ELISA was used to detect specific IgA antibodies. The results showed that 28/50 infants were infected. During the neonatal period, IgM was detected in 39.3% (11/28) of those infected infants and IgA was detected in 21.4% (6/28). The sensitivity, specificity and predictive values (positive and negative) of each assay were, respectively: MEIA and ELFA: 60.9%, 100%, 100%, 55.0%; IFAT: 59.6%, 91.7%, 93.3%, 53.7%; IgA capture ELISA: 57.1%, 100%, 100%, 51.2%. The presence of specific IgM and IgA antibodies during the neonatal period was not frequent, although it was correlated with the most severe cases of congenital transmission. The results indicate that the absence of congenital disease markers (IgM and IgA) in newborns, even after confirming the absence with several techniques, does not constitute an exclusion criterion for toxoplasmosis.

Assessment of laboratory methods used in the diagnosis of congenital toxoplasmosis after maternal treatment with spiramycin in pregnancy

BackgroundThe different laboratory methods used in the diagnosis of congenital toxoplasmosis have variable sensitivity and specificity. There is no evidence to prove that maternal treatment reduces the risk of fetal infection. The purpose of this study was to assess methods for the confirmation of congenital toxoplasmosis after maternal treatment with spiramycin during pregnancy, and to evaluate the effect of this treatment on clinical manifestations of the disease in newborns (NB).MethodsThis was a community-based, cross-sectional study of acute toxoplasmosis in newborns at risk of acquiring congenital infection. Participating newborns were born in the Clinical Hospital Maternity Ward of the Federal University of Goiás. Eligible participants were divided into 2 groups: group 1 consisted of 44 newborns born to mothers treated with spiramycin during pregnancy and group 2 consisted of 24 newborns born to mothers not treated with spiramycin during pregnancy because the diagnosis of toxoplasmosis was not performed. The sensitivity and specifity of PCR for T. gondii DNA in peripheral blood and serological testing for specific anti-T. gondii IgM and IgA, and the effects of maternal spiramycin treatment on these parameters, were determined by associating test results with clinical manifestations of disease.ResultsThe sensitivity of the markers (T. gondii DNA detected by PCR, and the presence of specific anti-T. gondii IgM and IgA) for congenital toxoplasmosis was higher in group 2 than in group 1 (31.6, 68.4, 36.8% and 3.7, 25.9, 11.1% respectively). Even with a low PCR sensitivity, the group 2 results indicate the importance of developing new techniques for the diagnosis of congenital toxoplasmosis in newborns. Within group 1, 70.4% of the infected newborns were asymptomatic and, in group 2, 68.4% showed clinical manifestations of congenital toxoplasmosis.ConclusionsThe higher proportion of infants without clinical symptoms in group 1 (70.4%) suggests the maternal treatment with spiramycin delays fetal infection, reducing the clinical sequelae of the disease in newborns. Given the low sensitivity of the tests used, when there is suspicion of congenital transmission several serological and parasitological tests are required in order to confirm or exclude congenital toxoplasmosis in newborns.

Infeccoes de transmissao vertical em material abortivo e sangue com enfase em Toxoplasmose gondii

PURPOSE To analyze the serological, anatomopathological and parasitological results obtained from abortive material in order to detect infections with the risk of vertical transmission, with emphasis on toxoplasmosis. METHODS A cross-sectional cohort study was conducted in order to determine the prevalence of infectoparasitic diseases. A total of 105 women who suffered spontaneous complete or incomplete abortion participated in the study. The women were interviewed, answered a questionnaire and had their blood and abortive material collected. Immunological tests were carried out in order to detect toxoplasmosis, Chagas disease, rubeola, cytomegalovirus and syphilis, and anatomopathological analysis of the ovular remains was performed. RESULTS 55% of the women studied were 20 to 30 years old. Most of them (68%) presented a gestational age between the 7th and 14th week. 54.3% of the women had complete or incomplete high school education. Serological analysis showed cytomegalovirus (CMV) as the most common vertically transmitted infection with 97.1% positivity, followed by rubeola with 95.2%. Toxoplasmosis showed 54.3% positivity, Chagas disease 1.9% and syphilis 0.95%. Anatomopathological analysis showed inflammation in 63.1% of the cases and absence of inflammation in 34%. The results of the serological, anatomopathological and parasitological analysis of the 105 participants showed that 57 women were T. gondii positive. However, none showed positivity in the polymerase chain reaction (PCR) or in mouse inoculation. CONCLUSIONS The prevalence of diseases with the risk of vertical transmission is important in women with spontaneous abortion, indicating the need for more research in order to investigate the etiology of abortion.

Healing activity of laser InGaAlP (660nm) in rats

PURPOSE To evaluate the effect the healing activity of diode laser Indium Gallium Aluminum Phosphorus (InGaAlP) ë660nm on healing of surgical wounds in rats. METHODS Fifty-four female Wistar rats were used, divided into three groups (n=18) and subdivided into three subgroups (n=6) to be studied in 5, 10 and 15(th) days after surgical procedures. The wound was induced in the dorsal-cervical using punch. The lesions were irradiated on alternate days with InGaAlP laser, the energy densities of 3J/cm(2) (L3) or 6J/cm(2) (L6). The control group received no irradiation. At 5, 10 and 15(th) days after surgery the animals were euthanized and the repair area was removed and histological sections were stained with hematoxylin-eosin and picrossírius. We evaluated macroscopic and histological lesions in the times cited, as well as morphometric analysis of angiogenesis and collagen content. RESULTS The wound healing activity InGaAlP laser was evidenced by increased angiogenesis group L3 and L6 in relation to control group (CG) at the 5(th) day (p=0.0001) and decreased polymorphonuclear infiltrate and hemorrhage (p=0.045 and p=0.07 respectively) in the groups L3 and L6 in relation to control group (GC). On the 10 and 15(th) days was also observed in groups treated with laser L3 and L6 stimulation was pronounced fibroplasia (p=0.0003 and p=0.034 respectively) when compared with the control group (CG). CONCLUSION The InGaAlP laser acted positively on the healing of skin wounds in rats.

Prenatal Catheter Placement for Fetal Cystic Adenomatoid Pulmonary Malformation: A Case Report

Introduction: Fetal congenital cystic adenomatoid malformation is a pulmonary developmental anomaly arising from an overgrowth of the terminal respiratory bronchioles. This is such a rare malformation that it is not always thought of as a diagnostic possibility. Case: In the present case, after a large pulmonary cyst started deviating the mediastinum and following an increase in amniotic fluid volume in the fetus at 28 weeks of gestation, the placement of a catheter for continuous drainage was performed. Subsequent follow-up with ultrasounds and serial echocardiograms revealed normalization of the position of mediastinum, normal amniotic fluid levels, and the correct position of the catheter. The size of the cyst was decreasing daily, but 8 weeks after fetal invasive procedure, there was concern about the stabilization of its size, with the suspicion of obstruction of the catheter. Cesarean delivery was performed at 38 weeks’ gestation. The size of the cyst on the day of C-section was 3.0 × 2.9 × 2.1 cm. At delivery, the infant weighed 3,030 g, with no evidence of respiratory distress, revealing the correct location of catheter. At day 4 after delivery a superior right pulmonary lobe resection was performed. Conclusion: Large pulmonary cysts may produce deviation of mediastinum and can lead to cardiac tamponade, nonimmune hydrops and pulmonary hypoplasia. Precise prenatal imaging and different fetal therapeutic strategies may allow survival of affected fetuses.

Comparison of pelvic floor muscle strength between women undergoing vaginal delivery, cesarean section, and nulliparae using a perineometer and digital palpation

Objectives. To compare pelvic floor muscle (PFM) strength between women undergoing vaginal delivery, cesarean section, and nulliparae, investigating the factors associated with PFM strength, and observing the correlation between vaginal digital palpation and use of a perineometer. Methods. A cross-sectional study was conducted, including 31 women following vaginal delivery, 30 women following cesarean section, and 30 nulliparous women. PFM strength was measured by vaginal digital palpation and use of a perineometer. Multiple linear regression analysis with adjustment for covariables was used to compare the mean PFM strength and identify its associated factors. Results. The mean PFM strength of women undergoing vaginal delivery and cesarean section was 25.6 ± 14.5 cmH2O and 39.6 ± 22.0 cmH2O (p < 0.01, adjusted for covariables), respectively. A correlation was observed between measurements of PFM strength obtained by vaginal digital palpation and use of a perineometer (tau = 0.82; p < 0.01). The non-white race/ethnicity was negatively associated with PFM strength (coefficient: −10.2424; p = 0.02). Conclusions. A lower PFM strength was observed in women with a history of vaginal delivery compared to those undergoing cesarean section. Non-white race/ethnicity negatively affected PFM strength. Our data suggest that vaginal digital palpation may be used in clinical practice because of its expressive correlation with use of a perineometer.

Efeito de um programa de exercícios para o fortalecimento dos músculos do assoalho pélvico de multíparas

OBJETIVOS: Investigar o efeito de um programa individualizado e supervisionado de exercicios para os musculos do assoalho pelvico (MAP) no pos-parto de multiparas e verificar a correlacao entre dois metodos de medida de forca dos MAP. METODOS: Conduziu-se um ensaio clinico aberto em que foram incluidas puerperas, multiparas com idade entre 18 e 35 anos. A amostra foi de 23 puerperas divididas em dois grupos: Grupo Intervencao (GI, n=11) e Grupo Controle (GC, n=12). As puerperas do GI participaram de um programa de exercicios para os MAP durante oito semanas, com frequencia de duas vezes por semana. As puerperas do GC nao receberam orientacao quanto a pratica de exercicios. A forca dos MAP foi medida em duas oportunidades, utilizando-se a palpacao vaginal digital e o perineometro. A analise estatistica foi realizada atraves dos seguintes testes: exato de Fisher, do c2, t de Student, Kolmogov-Smirnov para duas amostras e coeficiente de correlacao de Pearson. Foi considerado como significativo p<0,05. RESULTADOS: A media de idade das participantes do GI foi de 24±4,5 anos e do GC foi de 25,3±4 anos (p=0,4). Apos o programa de exercicios, verificou-se diferenca significativa entre os grupos nas duas medidas da forca muscular (p<0,001). Os dois metodos de medida da forca muscular apresentaram correlacao significativa nas duas avaliacoes (1a avaliacao: r=0,889, p<0,001; 2a avaliacao: r=0,925, p<0,001). CONCLUSOES: O programa de exercicios resultou em aumento significativo da forca dos MAP. Verificou-se boa correlacao entre a palpacao vaginal digital e o perineometro, indicando que a palpacao vaginal pode ser utilizada na pratica clinica por ser um metodo de baixo custo e que demonstrou uma correlacao significativa com um metodo objetivo, o perineometro.

Correlação entre a idade e a contagem dos folículos antrais em mulheres inférteis

PURPOSE To produce age-related nomograms for ovarian antral follicle count (AFC) in infertile women. METHODS It was done a cross-sectional study of patients attended in the center of assisted reproduction Fêmina, from March 2010 to October 2011. The patients were submitted to transvaginal ultrasonography from day 2 to day 4 of their menstrual period. Patients included were between 21 to 45 years old, with regular menses, two healthy ovaries, without any evidence of endocrinopathies and who gave written informed consent. Patients excluded were smokers, with galactosemia or ovarian cysts, with antecedents of liver disease, ovarian surgeries or who were treated with chemotherapy or radiotherapy. In order to check the evolution of the AFC in relation to patient age, we used the 5th, 25th, 50th, 75th and 95th percentiles. Linear regression was carried out using these percentiles, permitting us to determine the effect of age on the CFA. RESULTS A total of 172 patients with a mean age of 32.7 years were included in the trial. The male and tubal factors were the main causes of infertility, accounting for 65% of cases. The age-related nomogram for the 5th, 25th, 50th, 75th and 95th percentiles of AFC revealed that changes were best fitted by a linear function. The percentiles that showed the highest correlations were 25 (r=-0.9; p<0.001), 50 (r=-0.9; p<0.001) and 75 (r=-0.9; p<0.001). CONCLUSION A nomogram was constructed correlating age with the different AFC percentiles in infertile women without endocrinopathies. This showed a linear pattern of decline in AFC with age in all percentiles. These nomograms could provide a reference guide for the clinician. However, future validation, with longitudinal data, still is needed.