Mario Estanislao Guzmán Huerta

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Analysis of fetal biometric parameters on ultrasound images is widely performed and it is essential to estimate the gestational age, as well as the fetal growth pattern. The use of three dimensional ultrasound (3D US) is preferred over other tomographic modalities such as CT or MRI, due to its inherent safety and availability. However, the image quality of(More)
OBJECTIVE To describe the perinatal outcome of those patients that come to emergency room because of diminished fetal movements. PATIENTS AND METHOD This is a case series in which we evaluated the patients who were attended at the Maternal Fetal Medicine Department from January 2002 to December 2003. All patients with prenatal control in the institution(More)
BACKGROUND Red cell alloimmunization is an important cause of perinatal morbidlity and mortality. Invasive procedures used to diagnose fetal anemia are associated with serious fetal and maternal complications. The development of noninvasive techniques as Doppler ultrasound can help us in the fetal anemia diagnosis. OBJECTIVES To evaluate the effect of the(More)
OBJECTIVE To analyze social and economic factors affecting the implementation of a fetal surgery program in a developing country. MATERIALS AND METHODS During an 18-month period, 30 women with complicated monochorionic diamniotic twin pregnancies were evaluated. 27 women had twin-to-twin transfusion syndrome (TTTS), 2 women had a selective intrauterine(More)
BACKGROUND The uterine length measurement is a routine practice in the prenatal care of pregnant women. It has been attributed a sensibility of 86% to detect fetal grown restriction. The technique is easy to perform and reproducible between observers, although we have found variation between intra- and inter-observers measurements. OBJECTIVE To evaluate(More)
During a 3 and 1/2 years, 132 pregnancies were diagnosed as having a wide variety of congenital abnormalities. A high resolution ultrasound and multidisciplinary approach was used. In 95 cases fetal karyotyping was made. In this group the incidence of chromosomal abnormalities diagnosed during the period and phenotypic expression of the different types of(More)
OBJECTIVE To establish the normal reference values of the pulsatility index in the uterine (UtA PI) and umbilical (UmA PI) arteries during pregnancy. PATIENTS AND METHODS A total of 2081 normal pregnancies with normal growth fetuses were evaluated with pulsed Doppler ultrasound (US) between 20 and 40 weeks of gestation (WG). Both, UtA and UmA, were(More)
We report the case of a pregnancy of 16 weeks with anemia and a presumptive diagnosis of partial mole. In secondary care this diagnosis was ruled out through ultrasonography and diffuse cysts were found in the myometrium. Spectral Doppler ultrasound showed no flow, but it could be observed with power angiography. Cesarean section was performed at 38 weeks(More)
BACKGROUND The not heart thoracic anomalies are caused by different abnormalities in the embryonic period with similar physiopathologic mechanisms. The prenatal treatment by means of decompression can improve substantially the clinical results in these patients. OBJECTIVE To evaluate, in a qualitative way, the effect of the thoracoamniotic shunts and(More)
Since the last decade more screening tests for chromosomal abnormalities are available to all pregnant women in the first trimester. In the same way, more women above 35 years of age are now pregnant. Offering direct invasive procedures to this "high-risk" group should increase the number of fetal losses associated with amniocentesis or chorionic villus(More)