Cleisson Peralta

PURPOSE: To describe the results of laser ablation of placental vessels for the treatment of severe twin-to-twin transfusion syndrome in an university center in Brazil. METHODS: Retrospective observational study of patients treated at UNICAMP from 2007 to 2009. Laser ablation of placental vessels was performed in cases of severe twin-twin transfusion syndrome (Quintero stages II, III and IV) diagnosed before 26 complete weeks of gestation. The main variables evaluated in this series were gestational age at delivery, survival (discharge from the nursery) of at least one twin and neurological damage in survivors...

PURPOSE: To describe the maternal complications due to therapeutic endoscopic procedures in fetal Medicine performed at an university center in Brazil. METHODS: Retrospective observational study including patients treated from April 2007 to May 2010 who underwent laser ablation of placental vessels (LAPV) for severe twin-twin transfusion syndrome (TTTS); fetal tracheal occlusion (FETO) and endoscopic removal of tracheal balloon in cases of severe congenital diaphragmatic hernia (CDH); LAPV with or without bipolar coagulation of the umbilical cord in cases of twin reversed arterial perfusion (TRAP) sequence...

PURPOSE: to verify the association between ultrasonographic signs during gestation and post-delivery evolution in fetuses with bilateral obstructive uropathies, followed up in an expectant way. METHODS: fetuses with bilateral obstructive uropathies presenting severe oligoamnios and narrow thorax have been compared with fetuses with bilateral obstructive uropathies without those alterations, concerning the presence or absence of cysts in both kidneys, and the presence or absence of parenchymal hyperechogenicity in both kidneys...

PURPOSE: To evaluate gestational and neonatal outcomes in pregnancies complicated by fetal hydrocephalus. METHODS: Retrospective analysis of 287 cases of fetal hydrocephalus followed at the Fetal Medicine Unit of the University of Campinas in the period of 1996 to 2006. RESULTS: Mean maternal age was 25 years, mean gestational age at diagnosis was 27 weeks. There were 50 cases of isolated ventriculomegaly, 95 cases of Chiari II malformation and 142 cases of ventriculomegaly associated with other malformations...

PURPOSE: to evaluate the evolution of monochorionic-diamniotic twin pregnancies with and without the twin-twin transfusion syndrome (TTTS), followed up in an expectant way. METHODS: retrospective study in which the pregnancies with and without TTTS and with mild (Quintero's stage I) and severe (Quintero's stages II, III, IV and V) disease manifestations were compared according to extreme preterm delivery, neurological impairment and the twins' nursery discharge...

OBJECTIVE: The objective of the study was to investigate the volume response of the contralateral lung in the prediction of postnatal outcome in fetuses with congenital diaphragmatic hernia (CDH) treated by fetoscopic endotracheal occlusion (FETO). STUDY DESIGN: In 30 fetuses with isolated severe CDH that underwent FETO, the volume of the contralateral lung was measured by 3-dimensional ultrasound the day before and 2 and 7 days after FETO. The measurements of fetuses that subsequently died were compared to those who survived...

PURPOSE: To prospectively compare three-dimensional (3D) ultrasonography (US) and magnetic resonance (MR) imaging in the assessment of lung volumes in fetuses with congenital diaphragmatic hernia. MATERIALS AND METHODS: Informed consent was obtained for this ethics committee-approved study. Left and right lung volumes were measured by using the 30 degrees virtual organ computer-aided analysis 3D US technique and a transverse multiplanar T2-weighted MR imaging technique in 43 fetuses with isolated congenital diaphragmatic hernia...

OBJECTIVE: The purpose of this study was to assess the agreement between 3-dimensional ultrasonography (3DUS) and magnetic resonance imaging (MRI) for lung volumetry in fetuses with and without abnormalities associated with lung hypoplasia. METHODS: Fifty-nine singleton pregnancies were evaluated. Cases were separated into groups 1 and 2, according to the presence or absence of malformations associated with lung hypoplasia, respectively. Fetal lung volume was calculated by the Virtual Organ Computer-Aided Analysis (VOCAL) program of the 3DUS and the MRI...

OBJECTIVES: To evaluate whether fetal urinary sodium and chloride provide clinically useful information in addition to ultrasound in bilateral obstructive uropathy. METHODS: Sonographic features and urinary concentrations of sodium and chloride were evaluated in fetuses with bilateral obstructive uropathy. After a minimum of 12 months of postnatal follow-up, cases that developed increased serum creatinine (greater than 50 micromol/L) were compared with those that did not...

This study presents 30 cases of fetal isolated spina bifida aperta (SBA) to identify prenatal ultrasound findings that could predict the prognosis. Comparisons between surviving patients who had normal (group 1) and abnormal (group 2) post-natal neurological outcomes were made for three different prenatal signs, that is, site of vertebral lesion, presence and degree of ventriculomegaly and presence of talipes. The site of the lesion was the most significant outcome predictor, as high spinal dysraphisms were observed in 2 patients (2/7-28...