Prevención de la preeclampsia y su relevancia en el contexto latinoamericano: una revisión narrativa

La preeclampsia es un trastorno hipertensivo de la gestación que se evidencia durante las últimas semanas de esta. Globalmente, la preeclampsia es la segunda causa de mortalidad materna. Se estima que su incidencia es de aproximadamente un 16% en los países en vías de desarrollo, y llega a superar el 25% en algunos países de Latinoamérica. Se describirán las principales estrategias de prevención de la preeclampsia y su relevancia en el contexto latinoamericano. La búsqueda de información tuvo lugar en PubMed y BVS para las publicaciones realizadas sobre prevención de la preeclampsia, utilizando la expresión de búsqueda (“Disease Prevention” OR “Primary Prevention”) AND (Pre-eclampsia OR Preeclampsia OR “Pre eclampsia”) AND (“Latin America” OR “Central America” OR “South America” OR Caribbean). En PubMed se encontraron 60 y en BVS 42 resultados que responden a la expresión de búsqueda, y fueron seleccionados 18 artículos que discuten estrategias de prevención de la preeclampsia en Latinoamérica. Con estos resultados, se pueden afirmar que, describir las mejores estrategias de prevención de la preeclampsia en Latinoamérica es una tarea pendiente, pues existe una relativa carencia de publicaciones. En consecuencia, se espera que esta revisión motive futuras investigaciones y sea un recurso útil en la actualización médica.

Preeclampsia is a hypertensive disorder of pregnancy that is evident during the last weeks of it. Globally, preeclampsia is the second leading cause of maternal mortality. It is estimated that the incidence is approximately 16% in developing countries, and reaches over 25% in some Latin American countries. The main strategies for the prevention of preeclampsia and their relevance in the Latin American context will be described. The search for information took place in PubMed and BVS for publications on preeclampsia prevention, using the search expression (“Disease Prevention” OR “Primary Prevention”) AND (Pre-eclampsia OR Pre-eclampsia OR “Pre eclampsia”) AND (“Latin America” OR “Central America” OR “South America” OR Caribbean). In PubMed we found 60 and in VHL 42 results that respond to the search expression, and 18 articles were selected that discuss prevention strategies for preeclampsia in Latin America. With these results, it is possible to afirm that describing the best strategies for the prevention of preeclampsia in Latin America is a pending task, since there is a relative lack of publications. Consequently, it is hoped that this review will motivate future research and be a useful resource in medical updating.

Fatores associados à deficiência de vitamina D em mulheres gestantes e lactantes / Factores asociados a la deficiencia de vitamina D en mujeres embarazadas y lactantes / Factors associated with vitamin d deficiency in pregnant and lactatingwomen

Introdução: A deficiência de vitamina D durante a gestação e a lactação pode repercutir negativamente no desenvolvimento fetal e infantil, devido seu papel fundamental nos sistemas imunológico, cardíaco, ósseo, muscular e neural. Objetivo: Realizar uma revisão de literatura para integrar estudos que evidenciam a deficiência de vitamina D em gestantes e lactantes, e os fatores de risco associados a essa carência. Metodologia: Foi realizado um levantamento bibliográfico entre agosto e outubro de 2021, com atualização entre outubro e novembro de 2022 através de pesquisas às bases Pubmed e Scielo, bem como às listas de referências dos artigos selecionados. Foram empregados os descritores consumo alimentar, vitamina D, deficiência de vitamina D, gestantes e lactantes, usando-se o operador booleano AND para a associação entre eles. Como critérios de inclusão foram adotados o tipo de estudo (epidemiológicos, ensaios clínicos e revisões integrativa e sistemática), o idioma (espanhol, inglês e português) e o período de publicação (2010 a 2022). Resultados: Evidenciou-se que existem vários fatores de riscos para a inadequação do status de vitamina D em gestantes e lactantes como a baixa exposição da pele à luz solar e fatores relacionados (uso excessivo de protetor solar, menor tempo de atividades ao ar livre, clima, religião e hábitos culturais, maior escolaridade);a pigmentação mais escura da pele; o baixo consumo alimentar de vitamina D e variáveis associadas; a menor idade materna; o primeiro trimestre gestacional; a primiparidade e o excesso de tecido adiposo. Conclusões: Em gestantes e lactantes, a carência de vitamina D associa-se a distintos fatores, com destaque principalmente para a baixa exposição à luz solar, a pigmentação mais escura da pele e o excesso de tecido adiposo, sendo de extrema importância que sejam abordados com cautela, visando ações voltadas a variáveis modificáveis, de modo a auxiliar na redução da hipovitaminose D nestes grupos (AU).

Introduction: Vitamin D deficiency during pregnancy and breastfeeding can have a negative impact on fetal and infant development due to its fundamental role in the immune, cardiac, bone, muscular and neural systems. Objective: To conduct a literature review to integrate studies which show the Vitamin D deficiency in pregnant andlactating women, and the risk factors associated with this deficiency. Methodology: A bibliographic survey was carried out between August and October 2021, with an update between October and November 2022 through searches in the Pubmed and Scielo databases, as well as the reference lists of the selected articles. The descriptors food consumption, vitamin D, vitamin D deficiency, pregnant and lactating women were used, using the Boolean operator AND for the association between them. The type of study (epidemiological, clinical trials and integrative and systematic reviews), language (Spanish, English and Portuguese) and publication period (2010 to 2022) was adopted as inclusion criteria.Results:It was shown that there are several risk factors for inadequate vitamin D status in pregnant and lactating women, such as low skin exposure to sunlight and related factors (excessive use of sunscreen, less time spent outdoors, climate, religion and cultural habits, higher education); darker skin pigmentation; low dietary intake of vitamin D and associated variables; the lowest maternal age; the first gestational trimester; primiparity and excess adipose tissue.Conclusions: Vitamin D deficiency in pregnant and lactating women is associated with different factors, witha main emphasis on low exposure to sunlight, darker skin pigmentation and excess adipose tissue. Furthermore, it is extremely important that these factors are approached with caution, implementing actions aimed at modifiable variables in order to help reduce hypovitaminosis D in these groups (AU).

Introducción: La deficiencia de vitamina D durante el embarazo y la lactancia puede tener un impacto negativo en el desarrollo fetal e infantil, por su papel fundamental en los sistemas inmunológico, cardíaco, óseo, muscular y neural. Objetivo: Realizar una revisión bibliográfica para integrar estudios que evidencien la deficiencia de vitamina D en mujeres embarazadas y lactantes, y los factores de riesgo asociados. Metodología:Se realizó un levantamiento bibliográfico entre agosto y octubre de 2021, con actualizaciones entre octubre y noviembre de 2022 mediante búsquedas en las bases de datos Pubmed y Scielo, así como en las listas de referencias de los artículos seleccionados. Se utilizaron los descriptores consumo de alimentos, vitamina D, deficiencia de vitamina D, gestantes y lactantes, utilizándose el operador booleano AND para la asociación entre ellos. Se adoptaron como criterios de inclusión el tipo de estudio (epidemiológicos, clínicos, revisiones integradoras y sistemáticas), idioma (español, inglés y portugués) y período de publicación (2010 a 2022).Resultados: Existen varios factores de riesgo para un estado inadecuado de vitamina D en mujeres embarazadas y lactantes, como la baja exposición de la piel a la luz solar y factores relacionados (uso excesivo de protector solar, menor tiempo al aire libre, clima, religión y hábitos culturales, educación más alta); pigmentación de la piel más oscura; baja ingesta dietética de vitamina D y variables asociadas; la edad materna más baja; el primer trimestre gestacional; Primiparidad y exceso de tejido adiposo. Conclusiones:En mujeres embarazadas y lactantes, el déficit de vitamina D se asocia a diferentes factores, especialmente la baja exposición solar, la pigmentación de la piel más oscura y el exceso de tejido adiposo, y es de suma importancia abordarlos con precaución, apuntando a acciones dirigidas a variables modificables, con el fin de ayudar a reducir la hipovitaminosis D en estos grupos (AU).

Características clínicas y epidemiológicas de embarazadas y puérperas con covid-19 ingresadas en cuidados intensivos

Introducción: La infección por el virus SARS-CoV-2 se ha convertido en una pandemia que ha ocasionado gran número de complicaciones y suele ser fatal para embarazadas y puérperas. Objetivo: Describir las características clínicas y epidemiológicas de embarazadas y puérperas con covid-19 ingresadas en cuidados intensivos. Métodos: Se realizó un estudio observacional descriptivo, de corte transversal, de 56 embarazadas y puérperas con diagnóstico confirmado de covid-19, ingresadas en el Servicio de Cuidados Intensivos del Hospital Provincial Docente Dr. Joaquín Castillo Duany de Santiago de Cuba durante el 2021. Las variables analizadas fueron la edad, los antecedentes personales, la causa de ingreso, el estado al egreso y la principal causa de muerte. A tal efecto, se calcularon las frecuencias, los porcentajes y la tasa de letalidad. Resultados: Hubo predominio de las gestantes en todos los grupos de edades (58,9 %) en relación con las puérperas (41,1 %), principalmente en el grupo etario de 31-35 años (30,3 %). La hipertensión arterial resultó ser la comorbilidad más frecuente con 71,4 y 28,6 %, para embarazadas y puérperas, respectivamente; en tanto, 66,6 % de las primeras y 33,3 % de las segundas fueron ingresadas por neumonía. Todas las embarazadas egresaron vivas y 7 puérperas fallecieron. La tasa de letalidad fue de 12,5 y el síndrome de disfunción multiorgánica apareció en 57,2 % de las afectadas. Conclusiones: La hipertensión arterial fue la comorbilidad más frecuente, la neumonía viral, el principal diagnóstico al ingreso y el síndrome de disfunción multiorgánica, la primera causa directa de muerte.

Introduction: Infection due to SARS-CoV-2 virus has become a pandemic that has caused great number of complications and is usually fatal for pregnant and newly-delivered women. Objective: To describe the clinical and epidemiological characteristics of pregnant and newly-delivered women with Covid-19 admitted to intensive care units. Methods: An observational descriptive, cross-sectional study of 56 pregnant and newly-delivered women with confirmed diagnosis of Covid-19 was carried out; they were admitted to the Intensive Care Unit of Dr. Joaquín Castillo Duany Teaching Provincial Hospital in Santiago de Cuba during 2021. The analyzed variables were age, past health history, cause of admission, state when discharged from the institution and the main cause of death. For this purpose, the frequencies, percentages and case fatality rate were calculated. Results: There was a prevalence of pregnant women in all the age groups (58.9%) relative to the newly-delivered women (41.1%), mainly in the 31- 35 age group (30.3%). Hypertension was the most frequent comorbidity with 71.4 and 28.6%, for pregnant and newly-delivered women, respectively; as long as, 66.6% of the first ones and 33.3% of the second ones were admitted due to pneumonia. All the pregnant women were discharged alive and 7 newly-delivered women died. Case fatality rate was 12.5 and multiple organ dysfunction syndrome appeared in 57.2% of those affected. Conclusions: Hypertension was the most frequent comorbidity, viral pneumonia was the main admission diagnosis and multiple organ dysfunction syndrome, the first direct cause of death.

Importancia de las determinaciones inmunohematológicas en el control prenatal de gestantes con grupo sanguíneo RhD negativo

La guía para la atención prenatal es el marco regulatorio de las normas de obstetricia para el control y cuidado de las gestantes, con énfasis en aquellas que poseen el grupo sanguíneo RhD negativo. La aloinmunización por anti-D es la causa más frecuente y grave de la enfermedad hemolítica del recién nacido. Para un diagnóstico temprano de la embarazada con dicho grupo sanguíneo, resulta necesario determinar los anticuerpos antieritrocitarios involucrados. En la presente comunicación se resalta la función del laboratorio de inmunohematología en el seguimiento de la gestante con grupo de sangre RhD negativo.

The guide for prenatal care is the regulatory mark of obstetrics norms for the control and care of pregnant women, with emphasis on those who have the RhD negative blood group. Alloimmunization by anti-D is the most frequent and serious cause of hemolytic disease of the newborn. For an early diagnosis of the pregnant woman with said blood group, it is necessary to determine the red blood cell antibodies involved. This communication highlights the role of the immunohematology laboratory in the follow-up of pregnant woman with RhD negative blood type.

Asociación del bajo peso al nacer con el control prenatal, la anemia materna y ser madre soltera

Fundamento: la elevada frecuencia de recién nacidos con peso inferior al adecuado, en relación con la anemia materna, la atención prenatal insuficiente y la condición de madre soltera, puede tener importantes repercusiones en la salud de las madres y los niños. Objetivo: identificar la relación entre el control prenatal, la anemia materna y la condición de ser madre soltera con el bajo peso al nacer de los infantes. Método: se realizó un estudio observacional, analítico y retrospectivo de casos y controles en gestantes atendidas en un hospital de la región Sierra de Ecuador durante el año 2022. La muestra fue de 280 pacientes. El grupo de casos lo conformaron las gestantes con hijos con bajo peso al nacer (n = 70) y el grupo de control por gestantes con recién nacidos con peso normal (n = 210). Se realizó la prueba de Chi cuadrado de independencia y se calculó el Odds Ratio y su intervalo de confianza del 95 % para el nivel de asociación entre las variables. Resultados: la relación de la variable asistencia a controles prenatales con respecto al bajo peso al nacer mostró una asociación protectora (OR = 0,5). Se identificaron como factores de riesgo, la anemia materna (OR = 3,1) y la condición de madre soltera (OR = 2,3) por sus altos valores de asociación positiva y directa. Conclusiones: el control prenatal, la anemia materna y la condición de madre soltera resultaron tener un nivel de asociación significativa con el bajo peso al nacer.

Foundation: the high frequency of newborns with less than adequate weight, in relation to maternal anemia, insufficient prenatal care and single mother status, can have important repercussions on the health of mothers and children. Objective: to identify the relationship between prenatal control, maternal anemia and the condition of being a single mother with low birth weight of infants. Method: an observational, analytical and retrospective case-control study was carried out in pregnant women treated in a hospital in the Sierra region of Ecuador during the year 2022. The sample was 280 patients. The case group was made up of pregnant women with children with low birth weight (n = 70) and the control group was made up of pregnant women with newborns with normal weight (n = 210). The Chi square test of independence was performed and the Odds Ratio and its 95 % confidence interval were calculated for the level of association between the variables. Results: the relationship between the variable attendance at prenatal check-ups and low birth weight showed a protective association (OR = 0,5). Maternal anemia (OR = 3,1) and being a single mother (OR = 2,3) were identified as risk factors due to their high values of positive and direct association. Conclusions: prenatal control, maternal anemia and single mother status turned out to have a significant level of association with low birth weight.

Perfil clínico e epidemiológico de gestantes que vivem com HIV na Macrorregião Sul de Saúde de Santa Catarina / Clinical and epidemiological profile of pregnant women living with HIV in the Southern Health Macroregion of Santa Catarina

Objetivo: Nos últimos anos, a epidemia de HIV tem incidido consideravelmente e de forma silenciosa na população de mulheres gestantes, sobretudo devido à subnotificação, ao diagnóstico tardio e à negligência quanto à realização de teste anti-HIV pelas infectadas. Diante disso, este estudo tem por objetivo descrever o perfil clínico e epidemiológico de gestantes que vivem com HIV na Macrorregião Sul de Saúde de Santa Catarina. Métodos: Trata-se de um estudo ecológico, ana- lítico, retrospectivo, com base em dados secundários retirados das plataformas Sistema de Informações de Agravos de Notificação (Sinan) e Sistema de Monitora- mento Clínico das Pessoas Vivendo com HIV/AIDS (SIMC), acerca de gestantes que vivem com HIV na Macrorregião Sul de Saúde de Santa Catarina, no período entre 2019 e 2022. Resultados: A partir dos dados sociodemográficos, obteve-se um perfil epidemiológico prevalente de mulheres com idade entre 30 e 49 anos, brancas, com baixo nível de escolaridade e entre 1 a 13 semanas de gestação no momento da notificação de infecção por HIV. O perfil clínico apontou para a prevalência de mulheres em uso de terapia antirretroviral, com carga viral acima de 1.000 cópias/ mL e contagem de linfócitos T-CD4+ superior a 350 células/mm3. Conclusão: Apesar do baixo nível de escolaridade e da elevada carga viral, o resultado foi positivo para a população selecionada, uma vez que foi demonstrada boa adesão ao tra- tamento e alta contagem de linfócitos, sendo esses bons preditores de evolução clínica para o HIV.

Objective: In recent years, the HIV epidemic has significantly and silently affected the population of pregnant women, mainly due to underreporting, late diagnosis, and neglect of HIV testing among infected individuals. In light of this, the aim of this study is to describe the clinical and epidemiological profile of pregnant women living with HIV in the Southern Health Macroregion of Santa Catarina. Methods: This is an ecological, analytical, retrospective study based on secondary data retrieved from the Notifiable Diseases Information System (Sinan) and the Clinical Monitoring System for People Living with HIV/ AIDS (SIMC), regarding pregnant women living with HIV in the Southern Health Macroregion of Santa Catarina from 2019 to 2022. Results: Based on sociodemographic data, a prevalent epidemiological profile was identified, with women aged 30 to 49 years, white, with low educational level, and between 1 to 13 weeks of gestation at the time of HIV infection notifica- tion. The clinical profile revealed a prevalence of women on antiretroviral therapy, with a viral load above 1,000 copies/ mL and a T-CD4+ lymphocyte count above 350 cells/mm3. Conclusion: Despite the low educational level and high viral load, the outcome was positive for the selected population, as good treatment adherence and high lymphocyte count were demonstrated, both of which are good predictors of clinical progression for HIV.

Management of hepatitis C in children and pregnant women / 临床肝胆病杂志

Hepatitis C virus infection is a global public health issue， and the emergence of direct-acting antiviral agents has brought revolutionary breakthroughs in the treatment of hepatitis C patients. Although direct-acting antiviral agents have a marked therapeutic effect in adult patients， there are still many challenges in the treatment of special populations such as pregnant women， infants， young children， and adolescents. This article reviews the current status of antiviral therapy for these special populations with hepatitis C and the problems that need to be solved， in order to provide reference and guidance for clinical workers.

Clinical features of critically ill pregnant and parturient women infected with chronic hepatitis B virus： An analysis of 41 cases / 临床肝胆病杂志

ObjectiveTo investigate the clinical features and outcomes of critically ill pregnant and parturient women with chronic hepatitis B virus （HBV） infection， and to provide clinical experience for the rescue of critically ill pregnant and parturient women and the prevention and treatment of the severe exacerbation of liver disease. MethodsA total of 41 pregnant and parturient women with chronic HBV infection who were admitted to Department of Critical Care Medicine， Nanjing Second Hospital， from March 2013 to March 2023 were enrolled in this study， and their clinical data were collected through the electronic medical record system of hospital to summarize the main causes of transfer to the intensive care unit （ICU）， the causes of death， and treatment. The independent-samples t test was used for comparison of normally distributed continuous data between two groups， and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups. The chi-square test was used for comparison of categorical data between two groups. ResultsAmong the 41 patients， 13 （31.71%） did not receive regular antenatal examination and 8 （19.51%） with a high viral load （HBV DNA ≥2×105 IU/mL） did not receive antiviral therapy. Cesarean section was the main mode of delivery in 32 patients （78.05%）； 23 patients （56.10%） had premature delivery， and 5 patients died （12.20%）. The top three causes of transfer to the ICU were liver failure， postpartum hemorrhage， and hypertensive disorders of pregnancy. Liver failure mainly occurred in late pregnancy， with hepatic encephalopathy as the most common complication （28.57%） and intrahepatic cholestasis of pregnancy as the most common comorbidity （21.43%）； among the 14 patients with liver failure， 6 （42.86%） received regular antenatal examination， and 13 （92.86%） did not receive antiviral therapy before admission. The mean length of ICU stay was 3.31±1.65 days for the patients with postpartum hemorrhage， among whom the patients with severe liver disease had coagulation disorders before delivery， which were difficult to correct after 48 hours of treatment. ConclusionPregnant and parturient women with chronic HBV infection tend to have complex conditions and a relatively high mortality rate. For pregnant and parturient women with chronic HBV infection， assessment of liver status， regular antenatal examination， and timely antiviral therapy are of vital importance to reduce severe exacerbation and mortality rate.

Abnormal liver biochemical parameters in pregnancy during the epidemic of coronavirus disease 2019 / 临床肝胆病杂志

ObjectiveTo investigate the differences in abnormal liver biochemical parameters in pregnant patients during the epidemic or non-epidemic period of coronavirus disease 2019 （COVID-19）. MethodsA retrospective analysis was performed for 539 pregnant women who were discharged from Department of Obstetrics， Peking University First Hospital， from October 2017 to March 2022 and had at least one abnormal liver biochemical parameter among alanine aminotransferase （ALT）， aspartate aminotransferase （AST）， gamma-glutamyl transpeptidase （GGT）， total bilirubin （TBil）， and total bile acid. The patients in the epidemic period of COVID-19 and those in the non-epidemic period of COVID-19 were compared in terms of etiology， coagulation parameters， aminotransferases， bile acid， and renal function. The independent samples t-test was used for comparison of continuous data between two groups， and the chi-square test was used for comparison of categorical data between two groups. ResultsAmong the patients discharged from Department of Obstetrics during the non-epidemic period of COVID-19， 262 had abnormal liver biochemical parameters， accounting for 1.46%， while 277 patients had abnormal liver biochemical parameters during the epidemic period of COVID-19， accounting for 1.73% among the patients discharged from Department of Obstetrics during the same period of time， and there was a significant difference between these two groups （χ2=3.947， P=0.047）. The etiological analysis of the patients with abnormal liver biochemical parameters during the two periods showed that there was no difference in the proportion of patients with four pregnancy-specific liver diseases （hyperemesis gravidarum， preeclampsia and eclampsia， intrahepatic cholestasis of pregnancy， and acute fatty liver of pregnancy）. As for the patients with abnormal liver biochemical parameters in pregnancy， there was no significant difference in the proportion of patients with normal creatinine and stimated glomerular filtration rate （eGFR） between the epidemic period and the non-epidemic period （86.78% vs 87.90%， χ2=0.141， P=0.708）. The patients with ALT≥5×upper limit of normal accounted for 7.94% in the epidemic period of COVID-19 and 9.54% in the non-epidemic period （χ2=0.433， P=0.511）， and the patients with severe cholestasis accounted for 7.75% in the epidemic period of COVID-19 and 9.27% in the non-epidemic period （χ2=0.392， P=0.531）. The proportion of patients with obstetric bleeding during the epidemic period of COVID-19 was significantly lower than that during the non-epidemic period （14.61% vs 24.19%， χ2=489.334， P<0.001）. ConclusionThere is no difference in the proportion of patients with pregnancy-specific liver diseases among the patients with abnormal liver biochemical parameters in pregnancy between the epidemic period and the non-epidemic period of COVID-19， and there is no change in the proportion of patients with normal creatinine and eGFR among these patients in the epidemic period of COVID-19.

Impact of doula's continuous support on serotonin release in parturients: a pilot randomized clinical trial

Abstract Objective: To evaluate whether the continuous support provided by doulas influences the endogenous release of serotonin in parturients. Methods: This pilot study included 24 primigravidae at term. Of these, 12 women received continuous doula support (Experimental Group), whereas the other 12 received the usual assistance without doula support (Control Group). Blood samples were collected from all the women at the active and expulsion stages of labor and at the fourth period of labor (Greenberg period) for evaluation of their serotonin levels using high-performance liquid chromatography. Results: The average serotonin concentrations in the control and experimental groups were respectively 159.33 and 150.02 ng/mL at the active stage, 179.13 and 162.65 ng/mL at the expulsion stage, and 198.94 and 221.21 ng/mL at the Greenberg period. There were no statistically significant differences in serotonin concentrations between the two groups at the active and expulsion stages of labor. By contrast, within the experimental group, a significant increase in serotonin concentration was observed in the Greenberg period compared with the levels in the active and expulsion stages (p < 0.05). Conclusion: The novelty of this study relies on the ability to correlate the influence of the continuous support offered by doulas with the release of serotonin in parturients, with the results suggesting that the assistance received during labor can modulate the levels of hormone release in the Greenberg period. Brazilian Registry of Clinical Trials: RBR-4zjjm4h

Factors associated with the absence of postpartum consultations in a high-risk population

Abstract Objective: To assess the rate of missed postpartum appointments at a referral center for high-risk pregnancy and compare puerperal women who did and did not attend these appointments to identify related factors. Methods: This was a retrospective cross-sectional study with all women scheduled for postpartum consultations at a high-risk obstetrics service in 2018. The variables selected to compare women were personal, obstetric, and perinatal. The variables of interest were obtained from the hospital's electronic medical records. Statistical analyses were performed using the Chi-square, Fisher's exact, or Mann-Whitney tests. For the variable of the interbirth interval, a receiver operating characteristic curve (ROC) was used to best discriminate whether or not patients attended the postpartum consultation. The significance level for the statistical tests was 5%. Results: A total of 1,629 women scheduled for postpartum consultations in 2018 were included. The rate of missing the postpartum consultation was 34.8%. A shorter interbirth interval (p = 0.039), previous use of psychoactive substances (p = 0.027), current or former smoking (p = 0.003), and multiparity (p < 0.001) were associated with non-attendance. Conclusion: This study showed a high rate of postpartum appointment non-attendance. This is particularly relevant because it was demonstrated in a high-risk obstetric service linked to clinical severity or social vulnerability cases. This highlights the need for new approaches to puerperal women before hospital discharge and new tools to increase adherence to postpartum consultations, especially for multiparous women.

Early and late-onset preeclampsia: effects of DDAH2 polymorphisms on ADMA levels and association with DDAH2 haplotypes

Abstract Objective: To examine whether the DDAH2 promoter polymorphisms -1415G/A (rs2272592), -1151A/C (rs805304) and -449G/C (rs805305), and their haplotypes, are associated with PE compared with normotensive pregnant women, and whether they affect ADMA levels in these groups. Methods: A total of 208 pregnant women were included in the study and classified as early-onset (N=57) or late-onset PE (N =49), and as normotensive pregnant women (N = 102). Results: Pregnant with early-onset PE carrying the GC and GG genotypes for the DDAH2 -449G/C polymorphism had increased ADMA levels (P=0.01). No association of DDAH2 polymorphisms with PE in single-locus analysis was found. However, the G-C-G haplotype was associated with the risk for late-onset PE. Conclusion: It is suggested that DDAH2 polymorphisms could affect ADMA levels in PE, and that DDAH2 haplotypes may affect the risk for PE.

Factors associated with adherence to the COVID-19 vaccine in pregnant women / Factores asociados a la adherencia a la vacuna contra la COVID-19 en mujeres embarazadas / Fatores associados à adesão da vacina contra a COVID-19 em gestantes

Objective: to identify factors associated with adherence to the COVID-19 vaccine during pregnancy. Method: cross-sectional and analytical study with 348 postpartum women in shared accommodation at the Municipal Maternities of Recife-PE. Data was collected through interviews during the months of June to September 2022. Pearson's Chi-Square or Fisher's Exact tests and the Poisson regression model were applied for statistical analysis. Results: 17.2% of pregnant women adhered to the complete vaccination schedule, and adherence was associated with access to the internet/TV/radio (p-value = 0.011), routine prenatal vaccination (p-value = 0.019), safety of the efficacy of the COVID-19 vaccine and partner support (p-value = 0.020). Postpartum women without access to the internet/TV/radio, and who feel confident about the effectiveness of the vaccine, had higher prevalence rates for adhering to COVID-19 vaccination, with PRs of 2.56 and 3.25, respectively. Conclusion: there was evidence of low adherence to the vaccination schedule against COVID-19 during the gestational period, considering the number of recommended doses and the interval between them. Therefore, professionals in their clinical practice must make pregnant women aware of the importance of immunization and compliance with the vaccination schedule.

Objetivo: identificar factores asociados con la adherencia a la vacuna contra la COVID-19 durante el embarazo. Método: estudio transversal y analítico con 348 puérperas en alojamiento compartido en Maternidades Municipales de Recife-PE. Los datos fueron recolectados por medio de entrevistas durante los meses de junio a septiembre de 2022. Para el análisis estadístico se aplicaron las pruebas Chi-Cuadrado de Pearson o Exacta de Fisher y el modelo de regresión de Poisson. Resultados: el 17,2% de las gestantes cumplió con el esquema completo de vacunación, y la adherencia se asoció con el acceso a internet/televisión/radio (p-valor = 0,011), la vacunación prenatal de rutina (p-valor = 0,019), la seguridad con relación a la eficacia de la vacuna contra la COVID-19 y el apoyo de la pareja (p-valor = 0,020). Las mujeres puérperas sin acceso a internet/televisión/radio, y que se sienten seguras de la eficacia de la vacuna, tuvieron tasas de prevalencia más altas de adherencia a la vacunación contra la COVID-19, con RP de 2,56 y 3,25, respectivamente. Conclusión: se evidenció baja adherencia al esquema de vacunación contra la COVID-19 durante el período gestacional, considerándose el número de dosis recomendadas y el intervalo entre ellas. Por ello, los profesionales en su práctica clínica deben concienciar a las mujeres embarazadas sobre la importancia de la inmunización y del cumplimiento del esquema vacunal.

Objetivo: identificar os fatores associados à adesão da vacina contra a covid-19 no período gestacional. Método: estudo transversal e analítico com 348 puérperas em alojamentos conjuntos das Maternidades Municipais de Recife-PE. Os dados foram coletados por meio de entrevistas durante os meses de junho a setembro de 2022. Aplicou-se para a análise estatística o teste Qui-Quadrado de Pearson ou Exato de Fisher e o modelo de regressão de Poisson. Resultados: 17,2% das gestantes aderiram ao esquema completo de vacinação, e a adesão estava associada ao acesso à internet/TV/rádio (p-valor = 0,011), à vacinação de rotina no pré-natal (p-valor = 0,019), à segurança da eficácia da vacina contra a covid-19 e ao apoio do companheiro/parceria (p-valor = 0,020). As puérperas sem acesso à internet/TV/rádio, e que se sentem seguras com relação à eficácia da vacina, apresentaram maiores prevalências para adesão à vacinação da COVID-19, com RP de 2,56 e 3,25, respectivamente. Conclusão: evidenciou-se uma baixa adesão ao esquema vacinal contra a covid-19 no período gestacional, considerando-se o número de doses recomendadas e o intervalo entre as mesmas. Dessa maneira, os profissionais em sua prática clínica devem conscientizar as gestantes da importância da imunização e do cumprimento do esquema vacinal.

Percepção de gestantes quanto à atuação do enfermeiro no pré-natal / Perception of pregnant women regarding the performance of nurses in prenatal care / Percepción de las gestantes sobre la actuación del enfermero en el prenatal

Objetivo: identificar a percepção de gestantes quanto à atuação do enfermeiro no pré-natal. Método: pesquisa fenomenológica que entrevistou 10 gestantes de um município de Minas Gerais, Brasil. Os depoimentos foram organizados em categorias e analisados segundo a fenomenologia social de Alfred Schütz e literatura temática. Resultados: emergiram as categorias "Assistência centrada em ações técnicas", "Fragilidade na comunicação entre enfermeiro e gestante" e a expectativa de "orientações qualificadas desenvolvidas mediante atividades coletivas". Considerações finais: os resultados suscitam a necessidade de valorizar os aspectos subjetivos e comunicacionais no pré-natal, para além das ações técnicas, com vistas a efetivação do vínculo entre os atores, ampliação da adesão e da qualidade do pré-natal. Para tal, recomenda-se atividades de educação permanente

Objective: to identify the perception of pregnant women regarding the role of nurses in prenatal care. Method: phenomenological research that interviewed 10 pregnant women in a city in Minas Gerais, Brazil. The statements were organized into categories and analyzed according to Alfred Schütz's social phenomenology and thematic literature. Results: the categories "Care centered on technical actions", "Fragility in communication between nurse and pregnant woman" and the expectation of "qualified guidelines developed through collective activities" emerged. Final considerations: the results raise the need to value subjective and communicational aspects in prenatal care, in addition to technical actions, with a view to establishing the bond between actors, expanding adherence and quality of prenatal care. To this end, continuing education activities are recommended

Objetivos: identificar la percepción de las gestantes sobre el papel del enfermero en el prenatal. Método: investigación fenomenológica que entrevistó a 10 mujeres embarazadas en una ciudad de Minas Gerais, Brasil. Los enunciados fueron organizados en categorías y analizados según la fenomenología social y la literatura temática de Alfred Schütz. Resultados: surgieron las categorías "Cuidado centrado en acciones técnicas", "Fragilidad en la comunicación entre enfermero y gestante" y la expectativa de "orientaciones calificadas desarrolladas a través de actividades colectivas". Consideraciones finales: los resultados plantean la necesidad de valorar los aspectos subjetivos y comunicacionales en el prenatal, además de las acciones técnicas, con miras a establecer el vínculo entre los actores, ampliando la adherencia y la calidad del prenatal. Para ello, se recomiendan actividades de educación continua

Trends and spatial distribution of hepatitis B in pregnant women in Brazil / Tendência e distribuição espacial da hepatite B em gestantes no Brasil

Abstract Objectives: to analyze the trend and spatial distribution of hepatitis B in pregnant women in Brazil. Methods: ecological study based on all notified cases of hepatitis B in pregnant women through the Information System for Notifiable Diseases - Sinan between 2009 and 2018. Hepatitis B virus (HBV) detection rates were calculated in all municipalities. Spatial analysis was performed using the Global Moran Index for global data and local indicators of spatial association (Lisa) for the 5,570 municipalities. For trend analysis by State, the Prais-Winsten generalized linear regression model was used. Results: 15,253 pregnant women with HBV were reported. High detection rates were observed in the municipalities of São Miguel da Boa Vista-SC (68.96/1000 live births (LB)), Araguaiana-MT (68.18/1000 LB), Reserva do Cabaçal-MT (80, 00/1,000 LB), São Geraldo da Piedade-MG (75/1000 LB), Porto Mauá-RS (111, 11/1000 LB), in the respective bienniums. Moran (I) (I=0.056) showed a positive spatial association. In Lisa, 78 municipalities were included in the high-high cluster, 51.28% in the South region and 48 in the low-low cluster with 72.91% in the Southeast. There was an increasing trend in Maranhão (p=0.004) and Pernambuco (p=0.007) and a decrease in Mato Grosso (p=0.012), Paraná (p=0.031) and Santa Catarina (p=0.008). Conclusion: the detection of hepatitis B in pregnant women was observed in most Brazilian municipalities, with an increasing trend in two states and a decrease in three others.

Resumo Objetivos: analisar a tendência e distribuição espacial da hepatite B em gestantes no Brasil. Métodos: estudo ecológico a partir de todos os casos notificados de hepatite B em gestantes pelo Sistema de Informação de Agravos de Notificação - Sinan entre 2009 e 2018. Foram calculadas as taxas de detecção do vírus da hepatite B (HBV) em todos os municípios. A análise espacial foi realizada por meio do Índice Global de Moran para os dados globais e os indicadores locais de associação espacial (Lisa) para os 5.570 municípios. Para análise de tendências por Estado, utilizou-se o modelo de regressão linear generalizada de Prais-Winsten. Resultados: foram notificadas 15.253 gestantes com HBV. Observou-se altas taxas de detecção nos municípios de São Miguel da Boa Vista-SC (68,96/1000 Nascidos vivos (NV)), Araguaiana-MT (68,18/1000 NV), Reserva do Cabaçal-MT(80,00/1.000 NV), São Geraldo da Piedade-MG (75/1000 NV), Porto Mauá-RS (111,11/1000 NV), nos respectivos biênios. Moran (I) (I=0,056) apresentou associação espacial positiva. No Lisa observou-se 78 municípios inserido no cluster alto-alto, sendo 51,28%na região Sul e 48 no cluster baixo-baixo com 72,91% no Sudeste. Verificou-se tendência crescente no Maranhão (p=0,004) e Pernambuco (p=0,007) e diminuição no Mato Grosso (p=0,012), Paraná (p=0,031) e Santa Catarina (p=0,008). Conclusão: Observou-se a detecção de hepatite B em gestantes na maioria dos municípios brasileiros, com tendência crescente em dois estados e diminuição em outros três.

Efeitos da suplementação do cálcio sobre marcadores da pré-eclâmpsia: ensaio clínico randomizado / Efectos de los suplementos de calcio en marcadores de preeclampsia: ensayo clínico aleatorizado / Effects of calcium supplementation on markers of preeclampsia: randomized clinical trial

Resumo Objetivo Analisar os efeitos da suplementação de cálcio nos marcadores da pré-eclâmpsia ao longo do tempo, comparando o uso de cálcio em alta e baixa dosagem em mulheres grávidas com hipertensão. Métodos Trata-se de ensaio clínico randomizado com três grupos paralelos, placebo controlado, realizado no ambulatório de referência para o pré-natal de alto risco na Região Sul do Brasil, com análise de intenção de tratar e seguimento após quatro e oito semanas. A intervenção consistiu na ingestão de cálcio 500mg/dia, cálcio 1500mg/dia e placebo. Os dados foram analisados segundo um modelo generalizado de estimação de equações mistas adotando α 0,05. Resultados O efeito do cálcio em baixa e alta dosagem na evolução ao longo do tempo foi mantido entre os grupos, mesmo após o ajuste para os fatores de confusão. Houve diferença significativa nos parâmetros analisados na interação tempo e grupo (p <0,000) e diminuição nas médias de 12,3mmHg na PAS, 9,2 mmHg na PAD, 3,2 mg/dl creatinina e 7,2 mg/dl proteinúria para o grupo cálcio 500mg/dia. Os resultados foram semelhantes para o grupo com suplementação máxima. Conclusão O cálcio melhorou o prognóstico vascular em mulheres grávidas com hipertensão ao reduzir os níveis pressóricos e os marcadores da pré-eclâmpsia.

Resumen Objetivo Analizar los efectos de los suplementos de calcio en los marcadores de preeclampsia a lo largo del tiempo, comparando el uso de calcio en dosis altas y bajas en mujeres embarazadas con hipertensión. Métodos Se trata de un ensayo clínico aleatorizado con tres grupos paralelos, placebo controlado realizado en consultorios externos de referencia en el control prenatal de alto riesgo en la Región Sur de Brasil, con análisis de intención de tratar y seguimiento luego de cuatro y ocho semanas. La intervención consistió en la ingesta de calcio 500 mg/día, calcio 1500 mg/día y placebo. Los datos se analizaron de acuerdo con un modelo generalizado de estimación de ecuaciones mixtas adoptando α 0,05. Resultados El efecto del calcio en dosis bajas y altas en la evolución a lo largo del tiempo se mantuvo entre los grupos, inclusive después de los ajustes por los factores de confusión. Hubo diferencia significativa en los parámetros analizados en la interacción tiempo y grupo (p <0,000) y reducción de los promedios de 12,3 mmHg en la PAS, 9,2 mmHg en la PAD, 3,2 mg/dl creatinina y 7,2 mg/dl proteinuria en el grupo calcio 500 mg/día. Los resultados fueron parecidos en el grupo con suplemento en dosis máxima. Conclusión El calcio mejoró el pronóstico vascular en mujeres embarazadas con hipertensión al reducir los niveles de presión y los marcadores de preeclampsia. Registro Brasileiro de Ensaios Clínicos: RBR-9ngb95

Abstract Objective To analyze the effects of calcium supplementation on markers of preeclampsia over time by comparing the use of high- and low-dose calcium in hypertensive pregnant women. Methods This is a randomized clinical trial, placebo controlled, with three parallel groups carried out at the reference outpatient clinic for high-risk prenatal care in the South Region of Brazil, with intention-to-treat analysis and follow-up after four and eight weeks. The intervention consisted of ingesting calcium 500mg/day, calcium 1500mg/day and placebo. Data were analyzed according to a generalized mixed equation estimation model adopting α 0.05. Results The effect of low- and high-dose calcium on evolution over time was maintained between groups, even after adjustment for confounding factors. There was a significant difference in the parameters analyzed in the time and group interaction (p <0.000) and a decrease in the means of 12.3 mmHg in SBP, 9.2 mmHg in DBP, 3.2 mg/dl creatinine and 7.2 mg/dl proteinuria for the 500mg calcium/day group. The results were similar for the maximal supplementation group. Conclusion Calcium improved vascular prognosis in hypertensive pregnant women by reducing blood pressure levels and markers of preeclampsia. Brazilian Registry of Clinical Trials: RBR-9ngb95

Caracterización de la interrupción voluntaria del embarazo en pacientes mayores de 19 años

Introducción: Se conoce como interrupción voluntaria del embarazo a la muerte biológica del embrión o feto para su posterior eliminación, con o sin asistencia médica y en cualquier circunstancia social o legal. Objetivo: Caracterizar la interrupción voluntaria del embarazo en pacientes mayores de 19 años en los municipios de la región del Guacanayabo perteneciente a la provincia Granma en el año 2022. Métodos: Se realizó un estudio descriptivo, retrospectivo y de corte transversal sobre la interrupción voluntaria del embarazo en pacientes mayores de 19 años pertenecientes a los siete municipios a la región del Guacanayabo, provincia Granma en el periodo de enero a diciembre del 2022. El universo estuvo constituido por 579 gestantes, para lo cual se seleccionó una muestra de 572 mediante muestreo no probabilístico intencional. Resultados: El municipio de Manzanillo fue el que mayor casos aportó (53,1 %). Prevalecieron las edades de 20 a 24 años (34,3 %). Predominaron las mujeres con un nivel de escolaridad de preuniversitario/técnico medio (56,9 %), 71,9 % estaban casadas, el 53,2 % trabajaban, el 54,9 % eran de procedencia urbana y 76,4 % de las mujeres tenían antecedentes obstétricos. El método de interrupción más utilizado fue el de dilatación y curetaje (98,6 %). Conclusiones: El municipio Manzanillo aportó el mayor número de casos de interrupciones de embarazos al año. Las mujeres de procedencia urbana se someten con mayor frecuencia a interrupciones de embarazos, siendo el procedimiento de dilatación y curetaje el método de interrupción más empleado.

Introduction: It is known as voluntary interruption of pregnancy to the biological death of the embryo or fetus for its subsequent elimination, with or without medical assistance, and in any social or legal circumstance. Objective: To characterize the voluntary interruption of pregnancy in patients over 19 years of age in the municipalities of the Guacanayabo region belonging to Granma province in 2022. Methods: A descriptive, retrospective and cross-sectional study was conducted on voluntary termination of pregnancy in patients over 19 years of age from the seven municipalities of the Guacanayabo region, Granma province, from January to December 2022. The universe consisted of 579 pregnant women, for which a sample of 572 was selected by intentional non-probabilistic sampling. Results: The municipality of Manzanillo was the one with the highest number of cases (53, 1 %). The prevalence was between 20 and 24 years of age. Women with a pre-university/intermediate technical education predominated. (56, 9 per cent), 71, 9 per cent were married, 53, 2 per cent worked, 54.9 per cent were of urban origin and 76.4 per cent of women had an obstetric history. The most commonly used method of interruption was dilatation and curettage (98,6 %). Conclusions: The municipality of Manzanillo contributes the highest number of cases of terminations of pregnancies per year. Urban women are more likely to undergo abortions, with dilatation and curettage being the most widely used method of termination.

Internet use by pregnant women during prenatal care

ABSTRACT Objective: The search for medical information on the internet is a part of people's daily lives. Exponential volumes of data are available through various media and platforms. There are several problems related to the ease of creating and accessing medical information on the internet, as evidenced by the quantity of false content and increasing anxiety due to the consumption of these data. In light of this accessibility, it is necessary to understand how people use internet-based medical information and its impact on specific populations. This prospective study aimed to analyze pregnant women's behavior when searching for health-related information on the internet, and how they were influenced by the information. Methods: Questionnaires were administered to the participants during their immediate puerperium, and their answers were tabulated. Results: Three hundred and two patients answered the questionnaires. We observed that internet use was frequent, and most patients discussed the findings with their physicians. However, this did not affect the delivery routes. Conclusion: The search for health information by pregnant women is very prevalent but does not interfere with the delivery route.

Intimate partner violence during pregnancy and quality of life in Southern Brazil: a cross-sectional study, 2022 / Violencia de pareja durante el embarazo y calidad de vida en el sur de Brasil: estudio transversal, 2022 / Violência por parceiro íntimo durante a gestação e qualidade de vida no Sul do Brasil: estudo transversal, 2022

ABSTRACT Objective To analyze the association between intimate partner violence during pregnancy (IPVP) and quality of life (QOL). Methods A cross-sectional study was conducted with pregnant women receiving care in Primary Health Care in the municipality of Criciúma, Santa Catarina state, Brazil, in 2022; QOL was assessed in the physical, psychological, social relationship and environmental domains using WHOQOL-Bref instrument; IPVP was evaluated by means of the World Health Organization Violence Against Women; Crude and adjusted linear regression analyses were performed. Results A total of 389 pregnant women were evaluated; IPVP was observed in 13.6% of cases; in the adjusted analysis, IPVP remained associated with physical, psychological and social relationship domains; pregnant women who experienced IPVP had a reduction in their QOL score by 9.77, 11.07 and 8.95 points, respectively, when compared to those who did not experience IPVP. Conclusion IPVP was associated with poorer QOL in the physical, psychological and social relationships domains. Health services equipped to address and prevent violence against pregnant women are essential.

RESUMEN Objetivo Analizar la asociación entre violencia de pareja durante el embarazo (VPE) y calidad de vida (CV). Métodos Estudio transversal con mujeres embarazadas en Atención Primaria de Salud, se evaluó la CV en los dominios físico, psicológico, relaciones sociales y entorno (WHOQOL-Bref); la VPE fue evaluada por la Organización Mundial de la Salud; se realizaron análisis de regresión lineal bruta y ajustada. Resultados Se evaluaron 389 gestantes. La VPE estuvo presente en el 13,6% de las gestantes; en el análisis ajustado, la violencia de género permaneció asociada a aspectos físicos, psicológicos y a las relaciones sociales; las mujeres embarazadas que sufrieron VPE presentaron disminución de 9,77; 11,07 y 8,95 puntos de CV en comparación con quienes no sufrieron VPE. Conclusión La VPE se asocia con una peor calidad de vida en los ámbitos físico, psicológico y de relaciones sociales; los servicios de salud preparados para combatir la violencia son esenciales para prevenir los casos de violencia durante el embarazo.

RESUMO Objetivo Analisar a associação entre violência por parceiro íntimo na gestação (VPIG) e qualidade de vida (QV). Métodos Estudo transversal, com gestantes atendidas na Atenção Primária à Saúde, em Criciúma, Santa Catarina, Brasil, em 2022; avaliou-se a QV quanto aos domínios físico, psicológico, das relações sociais e do meio ambiente (WHOQOL-Bref); a VPIG foi avaliada pela World Health Organization Violence Against Women; foram realizadas análise de regressão linear bruta e ajustada. Resultados Foram avaliadas 389 gestantes; a VPIG esteve presente em 13,6%; na análise ajustada, a VPIG manteve-se associada aos aspectos físico, psicológico e das relações sociais; gestantes que sofreram VPIG tiveram reduzidos 9,77, 11,07 e 8,95 pontos no escore de QV, respectivamente, quando comparadas às que não sofreram VPIG. Conclusão A VPIG esteve associada à pior QV nos domínios físico, psicológico e das relações sociais; serviços de saúde preparados para o enfrentamento e prevenção da violência contra gestantes são essenciais.

Anemia ferropénica en el embarazo: esquema de sulfato ferroso intermitente en comparación con el continuo / Iron deficiency anaemia in pregnancy: comparison of intermittent versus continuous ferrous sulphate regimen

Resumen OBJETIVO: Comparar las concentraciones de hemoglobina en embarazadas con anemia por deficiencia de hierro que recibieron un tratamiento intermitente en comparación con el continuo de 200 mg de sulfato ferroso por vía oral. Además, comparar la frecuencia de efectos secundarios del tratamiento intermitente con el continuo. MATERIALES Y MÉTODOS: Ensayo clínico, aleatorizado, no cegado, efectuado en la Unidad Médica de Alta Especialidad Hospital de Ginecoobstetricia 4 Luis Castelazo Ayala, IMSS, en pacientes de 18 a 35 años atendidas entre los meses de enero a marzo del 2023 con 30 o más semanas de embarazo, diagnóstico de anemia ferropénica (definida operativamente solo con una biometría hemática inferior a 11 g/dL, con hipocromía y microcitosis), sin antecedentes de enfermedad crónico-degenerativa. El análisis estadístico se procesó en el programa SPSS v21, la distribución y características de la muestra con análisis univariado, seguido de un análisis bivariado con t de Student y diferencia de medias. Se consideró con significación estadística el valor de p < 0.05. RESULTADOS: Se estudiaron 32 pacientes: 16 con esquema continuo y 16 con el intermitente. Ambos grupos con incremento de 1 g/dL entre la hemoglobina inicial y final (p < 0.01), con una diferencia de medias entre el aumento de los grupos con p = 0.4. Con disminución significativa de la epigastralgia y la náusea. CONCLUSIONES: El tratamiento intermitente con sulfato ferroso incrementa las concentraciones de hemoglobina igual que un esquema continuo, pero con menos efectos adversos.

Abstract OBJECTIVE: To compare hemoglobin concentrations in pregnant women with iron deficiency anemia who received intermittent versus continuous treatment with 200 mg oral ferrous sulfate. In addition, to compare the incidence of side effects of intermittent versus continuous treatment. MATERIALS AND METHODS: Randomized, non-blinded, clinical trial conducted at the Unidad Médica de Alta Especialidad Hospital de Ginecoobstetricia 4 Luis Castelazo Ayala, IMSS, in patients aged 18 to 35 years attended between January and March 2023 with 30 or more weeks of pregnancy, diagnosis of iron deficiency anemia (operationally defined only with a blood biometry lower than 11 g/dL, with hypochromia and microcytosis), without a history of chronic degenerative disease. Statistical analysis was performed in SPSS v21 program, distribution and characteristics of the sample with univariate analysis, followed by bivariate analysis with Student's t and mean difference. A value of p < 0.05 was considered statistically significant. RESULTS: Thirty-two patients were studied: 16 with continuous and 16 with intermittent regimen. Both groups with increase of 1 g/dL between initial and final hemoglobin (p < 0.01), with a mean difference between groups increase with p = 0.4. With significant reduction in epigastralgia and nausea. CONCLUSIONS: Intermittent treatment with ferrous sulfate increases hemoglobin concentrations.