Objectives. To determinate the risk of death in new-boros with diagnosis of Selective intrauterine growth restriction in twin pregnancy according sex. Material and methods. Analytic, cross sectional and retrospective. The sample of new-boms with diagnosis of selective intrauterine growth restriction (SIUGR) was selected in the period between February 21'h, 2011 and November 241', 2014 on the National Maternal Perinatal Institute where were included 60491 new-boros, of which 58629 corresponded to single pregnancies, 1790 to twin pregnancies (683 new-borns with SIUGR; 335 of feminine sex and 348 of masculine sex) and 72 to triple pregnancies.

Objectives. To determine the relationship between obesity at the beginning, in the second and third trimester of pregnancy and macrosomic newborns treated at the National Maternal Perinatal Institute during the period from 2003 to 2005. Materials and methods. An analytical, prospective study in which it was followed two cohorts of pregnant women, the first one with 210 pregnant with adequate prepregnancy weight or overweight; and the second one with 211 pregnant with prepregnancy maternal obesity. We proceeded to descriptive analysis, through percentages, means and standard deviations. For the determination of hypothesis tests proceeded to significant inferential statistics with an alpha level of statistical significance of less than 0.05. To determine the influence, it proceeded to use the Relative Risk (RR) with confidence intervals at 95%.

Objectives: To determine the relationship between the average pulsatility index of the uterine arteries taken by ultrasound inpregnant women between 11 and 14 and 20 to 26 weeks of gestation with neonatal macrosomia. Materials and methods:Prospective, longitudinal, analytical study. A total of 3,279 pregnant women attended at the National Maternal Perinatal Institutebetween 2011 and 2014, of whom 952 were patients between 11 and 14 weeks and 2327 between 20 and 26 weeks, two groupswere formed: 11 to 14 and 20 to 26 weeks; The weights considered for the comparison were: 3,600, 3,800, 4,000, 4,200 and 4,400grams, a correlation was performed by the Pearson method, statistical significance was performed by means of Chi square test forboth groups, to calculate the probability Of occurrence of events was calculated odss ratio and to evaluate the precision were usedconfidence intervals, subsequ...

Objectives: Set the values for reference index pulsatilidad of artery uterine between 11-41 weeks of gestation in fetuses healthyin the maternal perinatal national institute in the period 2010 to 2016. Desing: Retrospective Cross-sectional descriptive study.Participants: Healthy fetuses. Main outcome measures: Reference ranges of the uterine artery pulsatility index.

Objective: To establish reference values of pulsatility index of the middle cerebral artery in healthy fetuses. Method: This is adescriptive, retrospective and cross-sectional study conducted at the National Maternal Perinatal Institute between 2014 and 2016.1865 women with a single pregnancy and low risk were registered between 20 and 40 weeks of gestation and were screened DopplerFetal middle cerebral artery.

Objective. To determine the similarity or difference in femur length of normal fetuses compared to fetuses with Downsyndrome at the Maternal Perinatal Institute period 2011-2015. Methodology. It is a quantitative, retrospective, observational,descriptive and cross-sectional descriptive study. Our population was all fetuses of the National Perinatal Maternal Institutein the period 2011-2015, which had the measure of Femur Length and the complete database, which meet the criteria ofInclusion and Exclusion.

Determina la relación entre el índice de pulsatilidad promedio de las arterias uterinas tomadas por ecografía en gestantes entre las 11 a 14 y 20 a 26 semanas de gestación con la macrosomía neonatal. Estudio prospectivo, longitudinal, analítico. Se incluyen a 3,279 gestantes atendidas en el Instituto Nacional Materno Perinatal entre el periodo 2011 a 2014, de los cuales 952 son pacientes captadas entre las 11 a 14 semanas y 2327 entre las 20 a 26 semanas, se forma dos grupos: 11 a 14 y 20 a 26 semanas; los pesos considerados para la comparación son: 3,600, 3,800, 4,000, 4,200 y 4,400 gramos, se realiza una correlación por el método de Pearson, la significación estadística se realiza por medio de la prueba de Chi cuadrado para ambos grupos, para calcular la probabilidad de ocurrencia de los eventos se calcula el odss ratio y para evaluar la precisión se utiliza intervalos de c...

Objectives. To determinate the risk of death in new-boros with diagnosis of Selective intrauterine growth restriction in twin pregnancy according sex. Material and methods. Analytic, cross sectional and retrospective. The sample of new-boms with diagnosis of selective intrauterine growth restriction (SIUGR) was selected in the period between February 21'h, 2011 and November 241', 2014 on the National Maternal Perinatal Institute where were included 60491 new-boros, of which 58629 corresponded to single pregnancies, 1790 to twin pregnancies (683 new-borns with SIUGR; 335 of feminine sex and 348 of masculine sex) and 72 to triple pregnancies.

Objectives. To determine the relationship between obesity at the beginning, in the second and third trimester of pregnancy and macrosomic newborns treated at the National Maternal Perinatal Institute during the period from 2003 to 2005. Materials and methods. An analytical, prospective study in which it was followed two cohorts of pregnant women, the first one with 210 pregnant with adequate prepregnancy weight or overweight; and the second one with 211 pregnant with prepregnancy maternal obesity. We proceeded to descriptive analysis, through percentages, means and standard deviations. For the determination of hypothesis tests proceeded to significant inferential statistics with an alpha level of statistical significance of less than 0.05. To determine the influence, it proceeded to use the Relative Risk (RR) with confidence intervals at 95%.

Objectives: To determine the relationship between the average pulsatility index of the uterine arteries taken by ultrasound inpregnant women between 11 and 14 and 20 to 26 weeks of gestation with neonatal macrosomia. Materials and methods:Prospective, longitudinal, analytical study. A total of 3,279 pregnant women attended at the National Maternal Perinatal Institutebetween 2011 and 2014, of whom 952 were patients between 11 and 14 weeks and 2327 between 20 and 26 weeks, two groupswere formed: 11 to 14 and 20 to 26 weeks; The weights considered for the comparison were: 3,600, 3,800, 4,000, 4,200 and 4,400grams, a correlation was performed by the Pearson method, statistical significance was performed by means of Chi square test forboth groups, to calculate the probability Of occurrence of events was calculated odss ratio and to evaluate the precision were usedconfidence intervals, subsequ...

Objectives: Set the values for reference index pulsatilidad of artery uterine between 11-41 weeks of gestation in fetuses healthyin the maternal perinatal national institute in the period 2010 to 2016. Desing: Retrospective Cross-sectional descriptive study.Participants: Healthy fetuses. Main outcome measures: Reference ranges of the uterine artery pulsatility index.

Objective: To establish reference values of pulsatility index of the middle cerebral artery in healthy fetuses. Method: This is adescriptive, retrospective and cross-sectional study conducted at the National Maternal Perinatal Institute between 2014 and 2016.1865 women with a single pregnancy and low risk were registered between 20 and 40 weeks of gestation and were screened DopplerFetal middle cerebral artery.

Objective. To determine the similarity or difference in femur length of normal fetuses compared to fetuses with Downsyndrome at the Maternal Perinatal Institute period 2011-2015. Methodology. It is a quantitative, retrospective, observational,descriptive and cross-sectional descriptive study. Our population was all fetuses of the National Perinatal Maternal Institutein the period 2011-2015, which had the measure of Femur Length and the complete database, which meet the criteria ofInclusion and Exclusion.

Objective: To determine the prevalence and characteristics of vertical transmission of the human immunodeficiency virus (HIV) in a referral hospital in Peru. Methods: A quantitative, cross-sectional, and descriptive study was conducted at the National Maternal Perinatal Institute between 2017 and 2023. HIV-screened pregnant women were included, analyzing maternal variables, delivery type, and newborn condition. HIV detection was performed using a rapid test, and data were collected from clinical records. Descriptive statistics were used for data analysis. Results: A total of 108 585 pregnant women were screened, identifying 357 HIV-positive cases (0.33%). Ten cases of vertical transmission (2.8%) were diagnosed, mostly intrapartum (60%). Cesarean delivery was observed in 90% of cases. Conclusion: Maternal HIV seroprevalence was 0.33%, and vertical transmission prevalence was 2.8%. The f...

Objetivo: Determinar la prevalencia y características de la transmisión vertical del virus de inmunodeficiencia humana (VIH) en un hospital de referencia en Perú. Métodos: Estudio cuantitativo, transversal y descriptivo realizado en el Instituto Nacional Materno Perinatal entre 2017 y 2023. Se incluyeron gestantes tamizadas para VIH, analizando variables maternas, tipo de parto y condición del recién nacido. La detección del VIH se realizó mediante prueba rápida, y los datos se recolectaron de registros clínicos. Se empleó estadística descriptiva para el análisis de datos. Resultados: Se tamizaron 108 585 gestantes, con 357 casos de VIH (0,33%). Se identificaron 10 casos de transmisión vertical (2,8%), diagnosticados mayormente en el intraparto (60%). El 90% de las gestantes culminó en cesárea. Conclusión: La seroprevalencia materna fue de 0,33% y la transmisión vertic...

In the article “Placental insufficiency in term and post-term pregnancy with normal fetal growth and adverse outcome” in the Peruvian Journal of Maternal Perinatal Research 2017 6 (2): 31-36.

Objective: determine if gestation in advanced maternal age is associated with a higher risk of maternal perinatal complicationsthan in adolescent gestation. Materials and methods: observational, correlational, retrospective, cross-sectional study wascarried out with a population of 6475 pregnant women and 7645 pregnant women attended at the National Maternal PerinatalInstitute who have been controlled and culminated in the institution in the period between January From 2012 to December2015.

Objective: determine if gestation in advanced maternal age is associated with a higher risk of maternal perinatal complicationsthan in adolescent gestation. Materials and methods: observational, correlational, retrospective, cross-sectional study wascarried out with a population of 6475 pregnant women and 7645 pregnant women attended at the National Maternal PerinatalInstitute who have been controlled and culminated in the institution in the period between January From 2012 to December2015.

Multicystic renal dysplasia is a rare and little know in our country. The aim of this paper is to present and critically discuss the diagnosis, assessment and perinatal outcome of a case of multicystic dysplastic kidney and its differential diagnosis.

Objective. To know the indicators of placental insufficiency in term and post - term gestation with normal fetal growth and adverse outcome in the National Maternal Perinatal Institute during the year 2017. Materials and methods. A correlational, descriptive, cross-sectional and retrospective study was performed in 37-42 weeks' pregnant women with normal umbilical Doppler and normal fetal growth. We investigated the association between eight indicators and six adverse outcomes for placental insufficiency.