La tesis titulada “Diseño y desarrollo de un sistema para automatizar el diagnóstico de narcolepsia tipo II mediante redes neuronales artificiales usando el registro polisomnográfico en un instituto del sueño”, tiene como objetivo principal diseñar y desarrollar un sistema para apoyar al diagnóstico de la narcolepsia tipo II mediante redes neuronales aplicado a las señales electroencefalográficas (EEG) con la finalidad de brindar un soporte tecnológico y automatizado para la evaluación de pacientes neurológicos. Las muestras utilizadas fueron provenientes de la Clínica San Felipe, del Área de Neurociencias, con un total de 10 pacientes controles y 7 pacientes con narcolepsia tipo II. Se utilizó el estándar de la Academia Americana de la Medicina del Sueño (AASM) para obtener épocas de treinta segundos en los canales F3A2, F4A1, C3A2, C4A1, O1A2 y O2A1. Se implementó...

A rare case of heterotopic pregnancy after use of ovulation-inducing communicates refers its presentation, diagnosis method, the applied therapy, pathologic examination, its evolution, a literature review of the subject and some comments relevant.

Ovarian pregnancy is a rare localization of ectopic pregnancy, represented by different authors, 0.5 to 4% of extrauterine pregnancies with an incidence of about one in 7,000 pregnancies. It is the most common type of non tubérico ectopic pregnancy. Two cases of ovarian pregnancies communicates, presents symptoms, diagnosis method, applied therapy, pathologic examination, evolution and review of the literature and some relevant comments.

Esta investigación analiza la existencia del greenium en los mercados de bonos verdes de Perú, Colombia y Chile, entendido como el diferencial de rendimiento atribuible a su etiqueta ambiental. Para evaluar este efecto, se construyeron bonos sintéticos convencionales mediante el emparejamiento con dos bonos comparables, considerando características como moneda, tasa cupón, vencimiento y calificación crediticia, y aplicando interpolación sobre la duración de Macaulay. La muestra incluyó 27 bonos verdes activos al 31 de diciembre de 2023. Los resultados econométricos no evidencian un greenium estadísticamente significativo. Sin embargo, se identificó que variables como la tasa cupón, el crecimiento del PIB y la inflación influyen de forma relevante en los rendimientos. Esto sugiere que el financiamiento en estos mercados está determinado principalmente por factores financier...

El propósito de nuestra investigación es analizar las variables monetarias que influyen directamente en las ventas, los cuales son cuotas, comisiones y bonos. Asimismo, lo que buscamos es encontrar cuál de estas variables influyen en mayor proporción al incremento de las ventas para así poder determinar estrategias de mayor relevancia y descartar el uso de aquellas que apoyen una variable de menos impacto en la empresa Forte. Los datos que usaremos para el desarrollo de nuestra investigación serán básicamente información secundaria adquirida de la empresa Grupo Forte SA C donde se analizarán las ventas del año 2013 al 2015 (rangos mensuales) junto con las cuotas, bonos y comisiones recibidos por cada periodo. En cuanto al método que usaremos para identificar a la variable que más influye será el modelo de regresión lineal múltiple donde podemos encontrar el análisis de m...

A rare case of heterotopic pregnancy after use of ovulation-inducing communicates refers its presentation, diagnosis method, the applied therapy, pathologic examination, its evolution, a literature review of the subject and some comments relevant.

Ovarian pregnancy is a rare localization of ectopic pregnancy, represented by different authors, 0.5 to 4% of extrauterine pregnancies with an incidence of about one in 7,000 pregnancies. It is the most common type of non tubérico ectopic pregnancy. Two cases of ovarian pregnancies communicates, presents symptoms, diagnosis method, applied therapy, pathologic examination, evolution and review of the literature and some relevant comments.

A case of hepatic rupture is presented in a primigravida 31 years, who presented cesarean delivery for fetal death and then died, despite therapeutic measures put in place. A review of current knowledge on this complication of HELLP syndrome is made.

Amorphus humans twins, Chorangiopagus parasiticus or twin reversed arterial perfusion, are rare abnormalities that occur in monozygotic multiple pregnancies. It is proposed artery-artery or vein to vein anastomosis anomalies in a monozygotic placenta, the blood is perfused from the hemodynamic active twin (pump twin) to the other (receptor twin). Inadequate perfusion to the receptor twin is the cause of anomalies, including acardia and anencephaly. The pump twin is structurally normal, but has a risk to present congestive cardiac failure in utero and without treatment, 50 to 75% of the cases die, particularly if the receptor twin weighs more than half the pump twin. We present a case of a 30 year-old woman with postnatal diagnosis of an acephalus, amorphous acardius fetus.

OBJETIVE: To determine the frequency, laboratory results and maternal and perinatal morbidity and mortality in patients with HELLP syndrome. DESIGN: Retrospective descriptive. MATERIALS AND METHODS: Sixteen cases of HELLP syndrome treated at the Victor Lazarte Echegaray Hospital between March 1997 and March 2002. RESULTS: The frequency of HELLP syndrome was 4.9% in pregnant women with a hypertensive disorder, 56.2% with criteria 43.8% complete and partial HELLP. Of the 16 cases, 68.8% had between 25 and 34 years, 43.8% were nulliparous and 37.5% were between 35 and 39 weeks. HELLP occurred in 87.5% in the antepartum. The major obstetric complications were DIC and abruption. Maternal mortality was 3 perinatal cases and 10 cases. CONCLUSIONS: HELLP syndrome is an entity of high maternal morbidity and mortality. The medical and surgical management and intensive care support should reduce th...

Amorphus humans twins, Chorangiopagus parasiticus or twin reversed arterial perfusion, are rare abnormalities that occur in monozygotic multiple pregnancies. It is proposed artery-artery or vein to vein anastomosis anomalies in a monozygotic placenta, the blood is perfused from the hemodynamic active twin (pump twin) to the other (receptor twin). Inadequate perfusion to the receptor twin is the cause of anomalies, including acardia and anencephaly. The pump twin is structurally normal, but has a risk to present congestive cardiac failure in utero and without treatment, 50 to 75% of the cases die, particularly if the receptor twin weighs more than half the pump twin. We present a case of a 30 year-old woman with postnatal diagnosis of an acephalus, amorphous acardius fetus.

OBJETIVE: To determine the frequency, laboratory results and maternal and perinatal morbidity and mortality in patients with HELLP syndrome. DESIGN: Retrospective descriptive. MATERIALS AND METHODS: Sixteen cases of HELLP syndrome treated at the Victor Lazarte Echegaray Hospital between March 1997 and March 2002. RESULTS: The frequency of HELLP syndrome was 4.9% in pregnant women with a hypertensive disorder, 56.2% with criteria 43.8% complete and partial HELLP. Of the 16 cases, 68.8% had between 25 and 34 years, 43.8% were nulliparous and 37.5% were between 35 and 39 weeks. HELLP occurred in 87.5% in the antepartum. The major obstetric complications were DIC and abruption. Maternal mortality was 3 perinatal cases and 10 cases. CONCLUSIONS: HELLP syndrome is an entity of high maternal morbidity and mortality. The medical and surgical management and intensive care support should reduce th...

A case of hepatic rupture is presented in a primigravida 31 years, who presented cesarean delivery for fetal death and then died, despite therapeutic measures put in place. A review of current knowledge on this complication of HELLP syndrome is made.