Device to predict pelvic floor integrity during vaginal delivery: an intra- and interrater reliability study of the Epi-no distensibility measurement.

OBJECTIVE: To determine the test-retest reliability of the pelvic floor distensibility evaluation with Epi-no® device. METHODS: Prospective, blinded observational study with 32 women pregnant from 35 gestational weeks. An Epi-no® balloon was inflated within the pregnant woman's vagina and the maximum circumference achieved was measured using a standard metric measuring tape. Measurements were performed twice in a day by two physiotherapists in a randomized order. Intraobserver reproducibility was obtained with another evaluation 7-14 d after the initial examination. The intraclass correlation coefficient (ICC) was used to determine the intra and interrater reliability and the respective 95% confidence intervals with an alpha level of 0.05. RESULTS: From a total of 32 included pregnant women, 28 were analyzed; they were 29.3 (±5.97) years old, were at 37 (±1.3) weeks' gestation and presented a mean Epi-no® circumference of 20.4 (±2.4) cm. Regarding the intraobserver analysis, examiner 1 observed a maximum circumference of 20.6 (±2.6) cm in the first evaluation and 20.2 (±2.4) cm in the second evaluation, with good reliability (ICC = 0.85). Examiner 2 observed 19.7 (±2.4) cm in the first evaluation and 21.0 (±2.0) cm in the second one, with moderate reliability (ICC = 0.58). Regarding the interobserver analysis, there was good reliability on two evaluation days, with an ICC of 0.76 and 0.82, respectively. CONCLUSIONS: Epi-no® device is a reliable device for physiotherapists to measure pelvic floor distention during pregnancy.

Quantitative assessment of pelvic floor muscle extensibility in pregnant women with a perineal elasticity meter.

Objective: The objective of this study was to compare measurements of pelvic floor muscle extensibility in pregnant women obtained through the Epi-no® and perineal elasticity meter (PEM) devices.Methods: This was an observational, cross-sectional study with a consecutive sample, conducted in a prenatal care outpatient clinic. The pelvic floors of 62 healthy pregnant women with gestational ages between 35 and 40 weeks were assessed. Perineal extensibility was measured using the Epi-no® and PEM devices. Through the linear regression method, a formula was created to calculate the Epi-no® values from the PEM values. To determine the degree of relationship between both variables, Pearson's correlation coefficient was used.Results: In the comparison of the results for 62 pregnant women using the two perineal extensibility assessment methods, the value obtained in the Pearson correlation coefficient analysis (0.621) indicated a moderate relationship between the variables. This finding was not confirmed by the Kappa correlation test. When the measurements were classified into three groups, a slight correlation was identified (perineum with restrictions, moderate extensibility, and good extensibility).Conclusion: There was a relationship between Epi-no® and PEM from slight to moderate agreement.

Determination of a cutoff value for pelvic floor distensibility using the Epi-no balloon to predict perineal integrity in vaginal delivery: ROC curve analysis. Prospective observational single cohort study / Determinação de um valor de ponto de corte para a extensibilidade do assoalho pélvico pelo balão Epi-no para predizer integridade perineal no parto vaginal: análise pela curva ROC. Estudo prospectivo observacional de coorte única

CONTEXT AND OBJECTIVE: Several risk factors are involved in perineal lacerations during vaginal delivery. However, little is known about the influence of perineal distensibility as a protective factor. The aim here was to determine a cutoff value for pelvic floor distensibility measured using the Epi-no balloon, which could be used as a predictive factor for perineal integrity in vaginal delivery. DESIGN AND SETTING: Prospective observational single cohort study conducted in a maternity hospital. METHODS: A convenience sample of 227 consecutive at-term parturients was used. All women had a single fetus in the vertex presentation, with up to 9.0 cm of dilation. The maximum dilation of the Epi-no balloon was measured using a tape measure after it had been inflated inside the vagina up to the parturients' maximum tolerance. The receiver operating characteristic (ROC) curve was used to obtain the Epi-no circumference measurement with best sensitivity and specificity. RESULTS: Among the 161 patients who were included in the study, 50.9% underwent episiotomy, 21.8% presented lacerations and 27.3% retained an intact perineum. Age > 25.9 years; number of pregnancies > 3.4; number of deliveries > 2.2 and circumference measured by Epi-no > 21.4 cm were all directly correlated with an intact perineum. Circumference measurements using the Epi-no balloon that were greater than 20.8 cm showed sensitivity and specificity of 70.5% and 66.7% (area under curve = 0.713), respectively, as a predictive factor for an intact perineum in vaginal delivery. CONCLUSION: Circumferences greater than 20.8 cm achieved using the Epi-no balloon are a predictive factor for perineal integrity in parturients.

CONTEXTO E OBJETIVO: Diversos fatores de risco estão envolvidos nas lacerações do períneo durante o parto vaginal, contudo, pouco se sabe sobre a influência da extensibilidade perineal como um fator protetor. O objetivo foi avaliar o ponto de corte da extensibilidade do assoalho pélvico medido pelo balão Epi-no, o qual poderia ser usado como fator preditor de integridade perineal no parto vaginal. TIPO DE ESTUDO E LOCAL: Estudo prospectivo observacional de coorte única conduzido em maternidade. MÉTODOS: Uma amostra de conveniência de 277 parturientes consecutivas no termo foi utilizada. Todas as mulheres tinham feto único com apresentação cefálica fletida, com até 9,0 cm de dilatação. A máxima dilatação do balão Epi-no foi medida com fita métrica após a sua insuflação dentro da vagina até a tolerância máxima da parturiente. Uma curva característica de operação do receptor (ROC) foi utilizada para obter a medida da circunferência com a melhor sensibilidade e especificidade. RESULTADOS: Dentre as 161 pacientes que foram incluídas no estudo, 50,9% sofreram episiotomia, 21,8% lacerações e 27,3% tiveram o períneo intacto. Idade > 25,9 anos; número de gestações > 3,4; número de partos > 2,2; e medida do perímetro do Epi-no > 21,4 cm foram todos diretamente correlacionados com períneo intacto. Os valores do perímetro com o balão Epi-no que estavam acima de 20,8 cm mostraram sensibilidade e especificidade de 70,5% e 66,7% (área sob a curva = 0,713), respectivamente, como fator preditor de períneo intacto no parto vaginal. CONCLUSÃO: Circunferência medida pelo balão Epi-no maior que 20,8 cm é fator preditor de integridade perineal em parturientes.

Determination of a cutoff value for pelvic floor distensibility using the Epi-no balloon to predict perineal integrity in vaginal delivery: ROC curve analysis. Prospective observational single cohort study.

CONTEXT AND OBJECTIVE: Several risk factors are involved in perineal lacerations during vaginal delivery. However, little is known about the influence of perineal distensibility as a protective factor. The aim here was to determine a cutoff value for pelvic floor distensibility measured using the Epi-no balloon, which could be used as a predictive factor for perineal integrity in vaginal delivery. DESIGN AND SETTING: Prospective observational single cohort study conducted in a maternity hospital. METHODS: A convenience sample of 227 consecutive at-term parturients was used. All women had a single fetus in the vertex presentation, with up to 9.0 cm of dilation. The maximum dilation of the Epi-no balloon was measured using a tape measure after it had been inflated inside the vagina up to the parturients' maximum tolerance. The receiver operating characteristic (ROC) curve was used to obtain the Epi-no circumference measurement with best sensitivity and specificity. RESULTS: Among the 161 patients who were included in the study, 50.9% underwent episiotomy, 21.8% presented lacerations and 27.3% retained an intact perineum. Age > 25.9 years; number of pregnancies > 3.4; number of deliveries > 2.2 and circumference measured by Epi-no > 21.4 cm were all directly correlated with an intact perineum. Circumference measurements using the Epi-no balloon that were greater than 20.8 cm showed sensitivity and specificity of 70.5% and 66.7% (area under curve = 0.713), respectively, as a predictive factor for an intact perineum in vaginal delivery. CONCLUSION: Circumferences greater than 20.8 cm achieved using the Epi-no balloon are a predictive factor for perineal integrity in parturients.

Immunoregulatory molecules in patients with gestational diabetes mellitus.

Induction of maternal-fetal immune tolerance is essential for the development of normal pregnancy. Impaired expression of costimulatory molecules may lead to intense inflammatory reaction, a mechanism involved in the pathophysiology of gestational diabetes mellitus (GDM). The aim of this study was to investigate whether immunoregulatory molecules are involved in the physiopathology of GDM. This case-control study included 30 healthy pregnant women and 20 GDM patients. Flow cytometry was used to assess peripheral blood T subpopulations (CD4(+) and CD8(+)), the expression of immunoregulatory molecules (CD28, ICOS, CTLA-4, and PD-1) and activation markers (CD69 and HLA-DR). Compared to healthy women, GDM patients had a significantly higher frequency of CD4(+)CD69(+) and CD8(+)CD69(+) T cells; only patients with insulin-treated GDM had increased numbers of CD4(+)HLA-DR(+) T cells. We also observed significantly higher percentages of CD4(+)CD28(+)HLA-DR(+), CD3(+)CD4(+)ICOS(+), CD3(+)CD4(+)PD-1(+), CD8(+)CD28(+)CD69(+), CD8(+)CD28(+)HLA-DR(+), CD8(+)CTLA-4(+)HLA-DR(+), and CD3(+)CD8(+)ICOS(+) T cells and lower frequency of CD3(+)CD4(+)CTLA-4(+), CD3(+)CD8(+)CTLA-4(+), and CD8(+)ICOS(+)HLA-DR(+) T cells in GDM patients compared to healthy pregnant women. This first study assessing costimulatory molecules in GDM patients shows that these patients have exacerbated markers of T cell activation along with CTLA-4 deficiency, findings that indicate that the maternal-fetal tolerance is compromised in these patients.

Distensibility and strength of the pelvic floor muscles of women in the third trimester of pregnancy.

OBJECTIVE: The objective of this study was to compare the role of the pelvic floor muscles between nulliparous and multiparous women in the third trimester of pregnancy, by analyzing the relationship between electrical activity (surface electromyography-EMG), vaginal palpation (modified Oxford scale), and perineal distensibility (Epi-no). METHODS: This was an observational cross-sectional study on a sample of 60 healthy pregnant women with no cervical dilation, single fetus, gestational age between 35 and 40 weeks, and maternal age ranging from 15 to 40 years. The methods used were bidigital palpation (modified Oxford scale, graded 0-5), surface EMG (electrical activity during maximal voluntary contraction), and perineal distensibility (Epi-no device). The Pearson correlation coefficient (r) was used to analyze the Epi-no values and the surface EMG findings. The Kruskal-Wallis test was used to compare the median values from surface EMG and Epi-no, using the modified Oxford scale scores. RESULTS: Among the 60 patients included in this study, 30 were nulliparous and 30 multiparous. The average maternal age and gestational age were 26.06 (± 5.58) and 36.56 (± 1.23), respectively. It was observed that nulliparous women had both higher perineal muscle strength (2.53 ± 0.57 versus 2.06 ± 0.64; P = 0.005) and higher electrical activity (45.35 ± 12.24 µV versus 35.79 ± 11.66 µV; P = 0.003), while among the multiparous women, distensibility was higher (19.39 ± 1.92 versus 18.05 ± 2.14; P = 0.013). We observed that there was no correlation between perineal distensibility and electrical activity during maximal voluntary contraction (r = - 0.193; P = 0.140). However, we found a positive relationship between vaginal palpation and surface electromyography (P = 0.008), but none between Epi-no values (P = 0.785). CONCLUSION: The electrical activity and muscle strength of the pelvic floor muscles of the multiparous women were damaged, in relation to the nulliparous women, while the perineal distensibility was lower in the latter group. There was a positive relationship between surface EMG and the modified Oxford scale.

Parturient perineal distensibility tolerance assessed by EPI-NO: an observational study.

OBJECTIVE: To determine how parturient women tolerate the use of a perineal distensibility assessment technique using the EPI-NO device. METHODS: An observational study with a total of 227 full-term parturient women was performed. During the evaluation with EPI-NO, parturient patients were asked about their sensation of discomfort. The degree of discomfort was measured using the Visual Analogue Scale, with a score from zero to 10. The Mann-Whitney test was applied to assess perineal distensibility measured by EPI-NO and the degree of discomfort caused by the test according to parity. The relation between perineal distensibility and discomfort was analyzed by using the Spearman correlation test (r). RESULTS: The test with EPI-NO caused only slight discomfort (mean Visual Analogue Scale of 3.8), and primiparous women reported significantly greater discomfort (mean Visual Analogue Scale of 4.5) than did multiparous (mean Visual Analogue Scale=3.1), with p<0.001 women. A negative correlation was observed, in other words, the greater the perineal distensibility on the EPI-NO, the lower the pain reported by the patients (r=-0.424; p<0.001). CONCLUSION: The assessment of perineal distensibility with EPI-NO was well tolerated by the parturient women.

Parturient perineal distensibility tolerance assessed by EPI-NO: an observational study / Tolerância da parturiente à extensibilidade perineal avaliada pelo EPI-NO: estudo observacional / Tolerância da parturiente à extensibilidade perineal avaliada pelo EPI-NO: estudo observacional

Objective : To determine how parturient women tolerate the use of a perineal distensibility assessment technique using the EPI-NO device. Methods : An observational study with a total of 227 full-term parturient women was performed. During the evaluation with EPI-NO, parturient patients were asked about their sensation of discomfort. The degree of discomfort was measured using the Visual Analogue Scale, with a score from zero to 10. The Mann-Whitney test was applied to assess perineal distensibility measured by EPI-NO and the degree of discomfort caused by the test according to parity. The relation between perineal distensibility and discomfort was analyzed by using the Spearman correlation test (r). Results : The test with EPI-NO caused only slight discomfort (mean Visual Analogue Scale of 3.8), and primiparous women reported significantly greater discomfort (mean Visual Analogue Scale of 4.5) than did multiparous (mean Visual Analogue Scale=3.1), with p<0.001 women. A negative correlation was observed, in other words, the greater the perineal distensibility on the EPI-NO, the lower the pain reported by the patients (r=-0.424; p<0.001). Conclusion : The assessment of perineal distensibility with EPI-NO was well tolerated by the parturient women. .

Objetivo : Determinar como a mulher parturiente tolera o uso de uma nova técnica de extensibilidade perineal, por meio do aparelho EPI-NO. Métodos : Estudo observacional com um total de 227 gestantes a termo. Durante a avaliação pelo EPI-NO, as parturientes foram perguntadas sobre a sensação de desconforto. O grau de desconforto foi medido usando a Escala Visual Analógica, com escore entre zero a 10. O teste de Mann-Whitney foi usado para avaliar a extensibilidade perineal avaliada pelo EPI-NO e o grau de desconforto causado pelo teste de acordo com a paridade. A relação entre extensibilidade perineal e desconforto foi avaliada pelo teste de correlação de Spearman (r). Resultados : O teste com EPI-NO causou apenas leve desconforto (média da Escala Visual Analógica de 3,8), sendo que as primíparas reportaram mais desconforto de modo significativo (média da Escala Visual Analógica de 4,5) que as multíparas (média da Escala Visual Analógica de 3,1), com p<0,001. Observou-se correlação negativa, ou seja, a maior extensibilidade no EPI-NO foi acompanhada de menor dor referida pelas pacientes (r=-0,424; p<0,001). Conclusão : A avaliação da extensibilidade perineal com EPI-NO foi bem tolerada pelas parturientes. .

Assessment of pelvic floor of women runners by three-dimensional ultrasonography and surface electromyography. A pilot study.

AIM: To evaluate female runners' pelvic floor muscles using three-dimensional ultrasonography (3DUS) and surface electromyography (SEMG). MATERIAL AND METHODS: A cross-sectional study was conducted on 24 female runners. SEMG was performed using surface electrodes inserted in the vagina. 3DUS was performed using perineal convex transducer. SEMG was evaluated at rest and with maximum voluntary contraction (MVC) and slow contraction. Levator ani muscle thickness, levator hiatus area and the angle between the levator muscles at rest and with MVC and Valsalva were evaluated using 3DUS. The women were divided into two groups (women running 25 km/week). Means, standard deviations and non-paired t tests were used for both groups. RESULTS: Among the 24 women, 11 ran 25 km/week (40.77 +/- 1.15 km/week). The mean SEMG at rest and with MVC and slow contraction were 16.25, 65.86 and 71.41 mV, respectively. For the levator hiatus area at rest and with MVC and Valsalva, the means were 12.54, 10.06 and 16.57 sqcm, respectively. Correlations between 3DUS and SEMG showed significant differences in SEMG at rest and levator thickness with Valsalva (r = 0.46; p = 0.04). CONCLUSIONS: 3DUS and SEMG are two feasible methods for evaluating female runners' pelvic floor. Correlations between 3DUS and SEMG showed significant differences in SEMG at rest and levator thickness with Valsalva.

Assessment of pelvic floor by three-dimensional-ultrasound in primiparous women according to delivery mode: initial experience from a single reference service in Brazil.

PURPOSE: To evaluate changes to the pelvic floor of primiparous women with different delivery modes, using three-dimensional ultrasound. METHODS: A prospective cross-sectional study on 35 primiparae divided into groups according to the delivery mode: elective cesarean delivery (n=10), vaginal delivery (n=16), and forceps delivery (n=9). Three-dimensional ultrasound on the pelvic floor was performed on the second postpartum day with the patient in a resting position. A convex volumetric transducer (RAB4-8L) was used, in contact with the large labia, with the patient in the gynecological position. Biometric measurements of the urogenital hiatus were taken in the axial plane on images in the rendering mode, in order to assess the area, anteroposterior and transverse diameters, average thickness, and avulsion of the levator ani muscle. Differences between groups were evaluated by determining the mean differences and their respective 95% confidence intervals. The proportions of levator ani muscle avulsion were compared between elective cesarean section and vaginal birth using Fisher's exact test. RESULTS: The mean areas of the urogenital hiatus in the cases of vaginal and forceps deliveries were 17.0 and 20.1 cm(2), respectively, versus 12.4 cm(2) in the Control Group (elective cesarean). Avulsion of the levator ani muscle was observed in women who underwent vaginal delivery (3/25), however there was no statistically significant difference between cesarean section and vaginal delivery groups (p=0.5). CONCLUSION: Transperineal three-dimensional ultrasound was useful for assessing the pelvic floor of primiparous women, by allowing pelvic morphological changes to be differentiated according to the delivery mode.

Assessment of pelvic floor by three-dimensional-ultrasound in primiparous women according to delivery mode: initial experience from a single reference service in Brazil / Avaliação do assoalho pélvico por meio da ultrassonografia tridimensional de mulheres primíparas de acordo com o tipo de parto: experiência inicial de um centro de referência do Brasil

PURPOSE: To evaluate changes to the pelvic floor of primiparous women with different delivery modes, using three-dimensional ultrasound. METHODS: A prospective cross-sectional study on 35 primiparae divided into groups according to the delivery mode: elective cesarean delivery (n=10), vaginal delivery (n=16), and forceps delivery (n=9). Three-dimensional ultrasound on the pelvic floor was performed on the second postpartum day with the patient in a resting position. A convex volumetric transducer (RAB4-8L) was used, in contact with the large labia, with the patient in the gynecological position. Biometric measurements of the urogenital hiatus were taken in the axial plane on images in the rendering mode, in order to assess the area, anteroposterior and transverse diameters, average thickness, and avulsion of the levator ani muscle. Differences between groups were evaluated by determining the mean differences and their respective 95% confidence intervals. The proportions of levator ani muscle avulsion were compared between elective cesarean section and vaginal birth using Fisher's exact test. RESULTS: The mean areas of the urogenital hiatus in the cases of vaginal and forceps deliveries were 17.0 and 20.1 cm², respectively, versus 12.4 cm² in the Control Group (elective cesarean). Avulsion of the levator ani muscle was observed in women who underwent vaginal delivery (3/25), however there was no statistically significant difference between cesarean section and vaginal delivery groups (p=0.5). CONCLUSION: Transperineal three-dimensional ultrasound was useful for assessing the pelvic floor of primiparous women, by allowing pelvic morphological changes to be differentiated according to the delivery mode.

OBJETIVO: Avaliar as mudanças no assoalho pélvico de mulheres primíparas em diversos tipos de partos por meio da ultrassonografia tridimensional. MÉTODOS: Estudo de corte transversal prospectivo com 35 primigestas, divididas em grupos com relação ao tipo de parto: cesariana eletiva (n=10), parto vaginal (n=16) e fórceps (n=9). A ultrassonografia tridimensional do assoalho pélvico foi realizada no segundo dia pós-parto com a paciente em repouso. Utilizou-se transdutor convexo volumétrico (RAB4-8L) em contato com os grandes lábios vaginais, estando a paciente em posição ginecológica. Medidas biométricas do hiato urogenital foram tomadas no plano axial da imagem renderizada para avaliar a área, os diâmetros anteroposterior e transverso, a espessura média e a avulsão do músculo elevador do ânus. Diferenças entre os grupos foram avaliadas pela determinação da média das diferenças com seus respectivos intervalos de confiança de 95%. As proporções de avulsão do músculo elevador do ânus foram comparadas entre a cesárea eletiva e o parto vaginal pelo teste exato de Fisher. RESULTADOS: As áreas médias do hiato urogenital dos partos vaginais e fórceps foram 17,0 e 20,1 cm², respectivamente, contra 12,4 cm² do Grupo Controle (cesárea eletiva). Avulsão do músculo elevador do ânus foi observado em mulheres submetidas ao parto vaginal (3/25); no entanto, não houve diferença significativa entre os grupos cesárea e parto vaginal (p=0,5). CONCLUSÃO: A ultrassonografia tridimensional por via perineal foi útil na avaliação do assoalho pélvico de mulheres primíparas, diferenciando alterações pélvicas de acordo com o tipo de parto.

Cytokine levels in gestational diabetes mellitus: a systematic review of the literature.

PROBLEM: Gestational diabetes mellitus (GDM) is an inflammatory condition that involves unbalanced cytokine production. We carried out a systematic review on the relationship between GDM and maternal circulating levels of cytokines in the 2nd/3rd trimesters. METHOD OF STUDY: Three electronic databases (MEDLINE, EMBASE and LILACS), were searched. Duplicate study selection, extraction and quality assessment was performed. RESULTS: Twenty-two studies with 1982 participants reporting levels of 9 cytokines (IL-1B, IL-2, IL-6, IL-10, IL-13, IL-18, IFN-G, TGF-B and TNF-A) were included. Most studies differed considerably in selection criteria, sampling and assay methods and in reporting their results. Consequently, only two studies could be pooled: TNF-A concentration was slightly higher in GDM than in control patients, although not significant (WMD=0.45, 95% CI -0.34-1.23). CONCLUSIONS: New studies with well-defined, more homogeneous methodological parameters are needed to detect whether there are significant differences in circulating levels of cytokines in patients with GDM.

Electromyographic evaluation of pelvic floor muscles in pregnant and nonpregnant women.

INTRODUCTION AND HYPOTHESIS: We compared the maximal voluntary contraction (MVC) and strength of pelvic floor muscles (PFM) of pregnant and nonpregnant women using surface electromyography (SEMG). METHODS: Fifteen pregnant primiparous women and 15 nulliparous nonpregnant women were evaluated. The healthy pregnant women were in the third trimester of pregnancy with a single fetus and did not have any neuromuscular alterations. The nonpregnant women did not present with PF dysfunctions and, as with the pregnant women, did not have any previous gynecological surgeries or degenerative neuromuscular alterations. The evaluation methods used were digital palpation (Oxford Grading Scale, which ranges from 0 to 5) and SEMG. In the EMG exam, MVC activity was evaluated, and the better of two contractions was chosen. Before the evaluation, all women received information about PFM localization and function and how to correctly contract PFM. RESULTS: In the EMG evaluation, MVC was significantly greater in the nonpregnant group (90.7 µv) than in the pregnant group (30 µv), with p < 0.001. The same results were observed after vaginal palpation, measured by the Oxford scale, which presented an average of 2.1 in the pregnant group and 4.5 in the nonpregnant group (p = 0.005). CONCLUSION: In comparison to nulliparous women, pregnant women demonstrated worse PFM function with decreased strength and electrical activity.

Eletromiografia de superfície para avaliação dos músculos do assoalho pélvico feminino: revisão de literatura / Evaluation of female pelvic floor muscles using surface electromyography: literature review

A eletromiografia de superfície tem grande importância clínica e de pesquisa para o fisioterapeuta. Apesar de captar a atividade elétrica promovida pelo recrutamento das unidades motoras, há boa correlação entre o número de unidades ativadas e a força muscular. É um dos métodos de maior especificidade na avaliação do assoalho pélvico, embora não haja consenso em relação à sua aplicação. Essa revisão de literatura foi desenvolvida com o objetivo de agrupar as informações sobre o uso da eletromiografia de superfície na avaliação do assoalho pélvico. Foram pesquisados artigos nas bases de dados Medline, PubMed, Lilacs, SciELO e Biblioteca Cochrane, e selecionados os que avaliassem o assoalho pélvico feminino por meio de eletromiografia de superfície. Apesar de sua metodologia ainda carecer de padronização, é um instrumento que deve ser considerado nas pesquisas científicas em nosso meio, pois parece apresentar boa reprodutibilidade e confiabilidade. Pacientes com disfunções do assoalho pélvico possuem alterações no tempo de ativação dos músculos do assoalho pélvico (MAP) e músculos abdominais. Quanto à gestação e puerpério, ainda faltam evidências sobre possíveis alterações da ativação elétrica dos MAP nesses períodos.

Surface electromyography has clinical and research importance for the physiotherapist. Although capturing electrical activity promoted by recruitment of motor units, there is a good correlation between the number of activated units and muscle strength. This is one of the methods of higher specificity in pelvic floor evaluation, although the lack of consensus regarding its application. The aim of this literature review was to cluster information regarding to the use of surface electromyography in the evaluation of pelvic floor. Papers were searched in Medline, Pubmed Lilacs, SciELO and Cochrane Library. Were selected papers which methods used surface electromyography to evaluate the pelvic floor. Although its methodology still lacks standardization, is an instrument that should be considered in scientific research in our country because it seems to have good reproducibility and reliability. Women with pelvic floor disorders have changes in the activation time of the pelvic floor muscles (PFM) and abdominal muscles. With respect to pregnancy and postpartum, there is a lack of evidence on possible changes in electrical activation of PFM in these periods.

Pelvic floor muscle and transversus abdominis activation in abdominal hypopressive technique through surface electromyography.

AIMS: The abdominal hypopressive technique (AHT) is performed mainly via transversus abdominis (TrA) activation and has been indicated for pelvic floor muscle (PFM) disorders. In some European countries, this technique has become widely used. This study aimed to investigate PFM and TrA activation during the AHT through surface electromyography. METHODS: Thirty-four nulliparous physical therapists in good general health were asked to participate in the trial. To ascertain a correct PFM contraction, each of the participants was assessed by inspection and digital palpation. Ability to contract the TrA was assessed by surface electromyography and AHT training was given before analysis. TrA and PFM activity was recorded using surface electromyography. RESULTS: The mean age of the volunteers was 28.1 (±6.0) years and the mean body mass index was 23.7 (±3.3) kg/m(2) . More than half of the volunteers were physically active (61.3%) and regularly performed PFM training (52.9%) but not TrA exercises (58.8%). Although the AHT activates the PFM when compared to resting tone (P < 0.001), this method is significantly less effective than PFM alone (P < 0.001). Additionally, the combination of the two techniques (AHT + PFM) was similarly effective as isolated PFM contraction (P = 0.586). Although the AHT activated the TrA significantly more than did PFM alone (P = 0.002), the addition of PFM contraction to the AHT significantly increased the amount of TrA activation (P < 0.001). CONCLUSIONS: Based on our results, the AHT is less effective than PFM contraction alone, and adding PFM contraction to AHT also improves the TrA contraction.

Episiotomia: revendo conceitos / Episiotomy: concepts review

A episiotomia ainda é o procedimento cirúrgico mais utilizado em obstetrícia. Seu uso rotineiro pode levar a uma série de complicações, dentre as quais se destacam: infecção, hematoma, rotura de períneo de terceiro e quarto graus, dispareunia e lesão do nervo pudendo. Este artigo é uma revisão de literatura que aborda o histórico, as indicações, as complicações, os motivos que ainda incentivam sua prática rotineira e os custos envolvidos na episiotomia. Foram utilizadas as bases de dados da Medline, Lilacs, Pubmed e Biblioteca Cochrane. Embora as evidências científicas indiquem que o uso restrito da episiotomia deva ser incorporado em todos os serviços, na América Latina verificamos que sua utilização é muito elevada, podendo atingir taxas de até 90 porcento. Sugerimos que as instituições hospitalares realizam treinamentos e atualizações acerca das diretrizes baseadas em evidências na obstetrícia.

Episiotomy is still the most widely used surgical procedure in obstetrician. Its frequent use may cause complications such as infection, 3rd and 4th grades of perineal lacerations, dyspaurenia and pudendal nerve injury. This paper is a literature review that comprises history, indications, complications, reasons that encourage the routine practice and costs implicated in episiotomy. Medline, Lilacs, Pubmed and Cochrane Library were used as databases. Although evidences suggest that restrictive use of episiotomy may be part of obstetrical care, in the Latin America its use is very common and may reach rates of up to 90 percent. It is suggested that hospital institutions should provide updating about obstetrics evidence based guidelines.

Cord blood cardiac troponin I, fetal Doppler velocimetry, and acid base status at birth.

OBJECTIVE: To analyze the association between umbilical cord cardiac troponin I (cTnI), obstetric Doppler, and birth acidemia. METHOD: This prospective observational study was conducted on 58 singleton pregnancies at 3 Brazilian hospitals. Umbilical and middle cerebral artery Doppler velocimetry were performed 24 h prior to birth. At delivery, cord blood was collected for pH, blood gas analysis, and cTnI measurement. RESULTS: Cardiac troponin I > or =0.20 ng/mL was detected in 5 neonates (8.6%). Centralization was recorded in 12 fetuses; 4 of these (33.3%) had detectable cTnI compared with 1/46 (2.2%) fetuses with normal Doppler (P=0.005). Acidemia was present in 60% of the neonates with detectable cTnI, compared with 15% of the neonates with undetectable cTnI (P=0.042). CONCLUSION: Centralization and birth acidemia are associated with detectable cTnI in cord blood supporting the possibility of myocardial ischemia in these fetuses.

Obstetric and perinatal effects of active and/or passive smoking during pregnancy.

CONTEXT: Cigarette smoke, whether inhaled voluntarily or not, causes damage to the mother-infant pair. The antenatal period may present the best opportunity for performing effective anti-smoking campaigns. OBJECTIVE: To study the obstetric and perinatal effects of smoking on pregnancy and the infant. TYPE OF STUDY: Prospective study, interviewing pregnant women who were randomly selected at the maternity hospital as they were being discharged after giving birth. SETTING: Hospital Municipal Vereador José Storópolli, São Paulo, Brazil. METHODS: 758 patients were interviewed regarding smoke inhalation before being discharged from the maternity hospital. The groups were formed by 42 active smokers, 272 passive smokers, 108 who inhaled smoke both actively and passively, and 336 non-smokers. The groups were compared regarding age, parity, school education, incidence of spontaneous abortion, rate of caesarian births, average gestational age at birth, rate of low birth weight and adequacy of weight in relation to the gestational age of newborn infants. For all variables we considered p < 0.05 as statistically significant. RESULTS: There was a high rate (55.7%) of pregnant smokers, including 5.5% active, 35.9% passive and 14.3% active-passive smokers. Active and active-passive smokers were older and had higher parity. Active smokers had lower education levels and higher rates of previous spontaneous abortion. The weights of newborn babies were lower for smoking mothers. DISCUSSION: The study was performed among patients that were mostly of low economic, social and cultural levels, thus possibly explaining the high incidence of smokers. Worse still was that 35.9% of the non-smokers were actually passive smokers. These rates we report were similar to those from the literature. The typical receptiveness of teenage girls to unrestricted advertising in the media contributes towards an early start to acquiring the habit of smoking, including during pregnancy in our country. We emphasize the difficulties in quantifying exposure to cigarettes even among active smokers. CONCLUSIONS: Cigarette smoke, whether inhaled voluntarily or not, has an unfavorable effect on the mother-infant pair.

Obstetric and perinatal effects of active and/or passive smoking during pregnancy

CONTEXTO: Objetivamos neste estudo avaliar as repercussões obstétricas e perinatais do tabagismo. A fumaça do cigarro inalada de forma voluntária ou não traz prejuízos sobre o binômio materno-fetal. O período pré-natal pode ser a melhor oportunidade para a realização de campanhas antitabagistas mais efetivas. OBJETIVO: Estudar as repercussões do tabagismo na gravidez e no recém-nascido. TIPO DE ESTUDO: Prospectivo, por meio de entrevistas realizadas entre as pacientes internadas na maternidade, escolhidas aleatoriamente após a resolução da gravidez. LOCAL: Hospital Municipal Vereador José Storópolli, São Paulo, Brasil. MÉTODOS: 758 Pacientes foram entrevistadas quanto ao tabagismo previamente à alta da maternidade. Os grupos estudados foram compostos de 42 fumantes ativas, 272 fumantes passivas, 108 que inalaram ativa e passivamente, e de 336 mulheres não-fumantes. Os grupos foram comparados entre si quanto a idade, paridade, grau de escolaridade, incidência de abortamento, taxa de cesariana, média da idade gestacional no parto, a freqüência de baixo peso e adequação peso/idade gestacional dos recém nascidos. Para todas as variáveis, consideramos p < 0,05 como estatisticamente significante. RESULTADOS: Observamos elevada incidência de tabagismo na gravidez (55,7%) incluindo fumantes ativas (5,5%), passivas (35,9%) e ativas-passivas (14,3%). As fumantes ativas e ativas-passivas mostraram-se com idade e paridade superiores, enquanto as ativas apresentavam menor grau de instrução e maior incidência de abortamentos prévios. Os neonatos de mães tabagistas tiveram menor peso. DISCUSSAO: O estudo foi realizado principalmente com pacientes de baixo nível sócioeconomico-cultural, possivelmente explicando a elevada incidência de tabagistas. Ressaltamos que 35,9% das não-fumantes eram, na realidade, fumantes passivas. Estes resultados foram similares àqueles da literatura. O mesmo pode ser dito em relação a ocorrência de aborto e recém-nascidos de baixo peso. A nicotina não filtrada está presente na fumaça de cigarro ambiental, cujo policiamento governamental da poluição se mostra inefetivo. Além disso, atitude típica das jovens adolescentes de permissividade e acesso à livre propaganda do cigarro na mídia contribuem para um início precoce de aquisição do vício durante a gravidez no nossos País. Enfatizamos as dificuldades em quantificar a exposição ao cigarro mesmo em fumantes ativas, pior ainda para as passivas. CONCLUSÕES: A fumaça do cigarro inalada de...