Publications by authors named "Adolfo Wenjaw Liao"

(1) Background: The pandemic led to significant healthcare disruptions, resulting in postponed surgeries and extended waiting times for non-urgent treatments, including hysteroscopies essential for diagnosing endometrial cancer. This study aims to formulate a risk stratification model to enhance the prioritization of hysteroscopy procedures in Brazil; (2) Methods: A case-control study was conducted at Vila Santa Catarina Hospital in São Paulo, analyzing the medical records of 2103 women who underwent hysteroscopy between March 2019 and March 2022. We used bivariate analysis and multivariate linear regression to identify risk factors associated with endometrial cancer and formulate a nomogram; (3) Results: The findings revealed a 5.

View Article and Find Full Text PDF

Purpose: To compare lung ultrasound (US) and computed tomography (CT) in the assessment of pregnant women with COVID-19.

Methods: Prospective study comprising 39 pregnant inpatients with COVID-19 who underwent pulmonary assessment with CT and US with a maximum span of 48 h between the exams. The thorax was divided into 12 regions and assessed in terms of the following: the presence of B-lines (>2), coalescent B-lines, consolidation on US; presence of interlobular thickening, ground glass, consolidation on CT.

View Article and Find Full Text PDF

Objective: To investigate the distribution of parturients at Hospital Municipal da Vila Santa Catarina Dr. Gilson de Cássia Marques de Carvalho according to the Robson classification, identify the cesarean rate in each Robson Group, and understand which group contributes more to the prevalence of Cesarean sections.

Methods: This is a retrospective observational cross-sectional study conducted through the analysis of medical records of parturients admitted to Hospital Municipal da Vila Santa Catarina Dr.

View Article and Find Full Text PDF

The coronavirus disease 19 (COVID-19) is responsible for the current worldwide pandemic. Treatment and prophylaxis are still under investigation. Convalescent plasma therapy could be an alternative.

View Article and Find Full Text PDF

Objective: To describe the morphology of the supra- and infraumbilical linea nigra in puerperal women.

Methods: The study was conducted from September 2017 to April 2018, and included 157 puerperal women admitted for childbirth care at the Obstetrics Department of a public maternity hospital of the city of São Paulo (SP), Brazil. The abdomen of subjects was photographed on the first or second day postpartum, with the patient lying symmetrically in dorsal decubitus at a standardized distance.

View Article and Find Full Text PDF

Objective: To examine the accuracy of fetal RHD genotype and RHD pseudogene determination in a multiethnical population.

Methods: Prospective study involving D-negative pregnant women. Cell-free DNA was extracted from 1 ml of maternal plasma by an automated system (MagNA Pure Compact, Roche) and real-time PCR was performed in triplicate targeting the RHD gene exons 5 and 7.

View Article and Find Full Text PDF

A retrospective study from November 2004 to May 2012, conducted at the Obstetric Clinic of Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HC-FMUSP), which included 92 singleton pregnancies with prenatal diagnosis of trisomy of chromosome 21 (T21), 18, 13 (T13/18) and monosomy X (45X), with diagnosis performed until the 26th week of pregnancy. The aim of the study was to describe the frequency and to investigate predictors of spontaneous fetal death (FD). Diagnosis (T21, n=36; T13/18, n=25; 45X, n=31) was made at a mean gestational age of 18.

View Article and Find Full Text PDF

The aim of this study was to compare different fetal growth curves in twin pregnancies with severe placental insufficiency. A retrospective cross-sectional analysis of 47 twin pregnancies with absent or reverse end diastolic flow in the umbilical artery of one fetus was performed. Pregnancies with major fetal abnormalities, twin-twin transfusion or three or more fetuses were not included.

View Article and Find Full Text PDF

Objective: To investigate the changes in fetal left ventricle myocardial performance index (MPI) following intrauterine intravascular transfusion (IUT).

Methods: Prospective study, including 25 IUT performed in 13 singleton pregnancies with maternal Rh D alloimmune disease. Left ventricle MPI was evaluated prior to transfusion and repeated 24 h after each procedure.

View Article and Find Full Text PDF

Objective: The objective of the study was to examine the correlation between fetal myocardial performance index (MPI) and hemoglobin (Hb) levels.

Methods: It is a prospective study involving singleton pregnancies at risk of fetal anemia as a result of maternal anti-D alloimmune disease. Right and left ventricle (LV) MPIs were evaluated by ultrasound up to 72 h before cordocentesis.

View Article and Find Full Text PDF

Objective: We aimed to examine maternal postpartum complications of twin deliveries according to mode of delivery and investigate the associated risk factors.

Methods: This was a retrospective cohort review of twin pregnancies with delivery after 26 weeks at a tertiary teaching hospital (1993-2008). The rates of maternal postpartum complications were compared among vaginal, elective cesarean and emergency cesarean deliveries.

View Article and Find Full Text PDF

Renal tubular dysgenesis (RTD) is a rare, lethal, autosomal recessive disorder characterized by non-differentiation of the renal proximal convoluted tubules, resulting in oligohydramnios. It is usually diagnosed in the second trimester of pregnancy, following the oligohydramnios sequence, pulmonary hypoplasia and hypocalvaria. The prognosis is poor, and death usually occurs in utero or within the first few days of life.

View Article and Find Full Text PDF

Objective: To study the effect of fetal anemia on fetal cardiac troponin T (cTnT) in pregnancies complicated by RhD alloimmunization.

Method: Twenty pregnant women complicated by RhD alloimmunization who underwent intrauterine transfusion (IUT) for treatment of fetal anemia were studied. Immediately before IUT, fetal blood was obtained for hemoglobin and cTnT measurements.

View Article and Find Full Text PDF

Objective: To determine variables that predict the rate of decline in fetal hemoglobin levels in alloimmune disease.

Method: Retrospective review of singleton pregnancies that underwent first and second intrauterine transfusions for treatment of fetal anemia because of maternal Rh alloimmunization in a tertiary referral center.

Results: Forty-one first intrauterine transfusions were performed at 26.

View Article and Find Full Text PDF

Objective: The purpose of this study was to establish longitudinal reference ranges for fetal ultrasound biometry measurements and growth parameters in twin pregnancies.

Method: A total of 200 uncomplicated twin pregnancies before 21 weeks of gestation were recruited for this prospective, longitudinal study. Women who abandoned follow-up, pregnancies with unknown outcomes or pregnancies with complications were excluded.

View Article and Find Full Text PDF

Purpose: To analyze the influence of maternal nutritional status, weight gain and energy consumption on fetal growth in high-risk pregnancies.

Methods: A prospective study from August 2009 to August 2010 with the following inclusion criteria: puerperae up to the 5th postpartum day; high-risk singleton pregnancies (characterized by medical or obstetrical complications during pregnancy); live fetus at labor onset; delivery at the institution; maternal weight measured on the day of delivery, and presence of medical and/or obstetrical complications characterizing pregnancy as high-risk. Nutritional status was assessed by pregestational body mass index and body mass index in late pregnancy, and the patients were classified as: underweight, adequate, overweight and obese.

View Article and Find Full Text PDF

Purpose: To determine the accuracy of ultrasound in fetal weight estimation and to evaluate maternal and/or fetal factors that could interfere in the result.

Methods: This was a transverse prospective study, involving 106 patients, with 212 fetal weight evaluations, by two observers, within 24 h to delivery. The following parameters were measured: biparietal diameter, head circumference, abdominal circumference, and femoral length.

View Article and Find Full Text PDF

Purpose: The aim of this study was to analyze conjoined twins in terms of antenatal, delivery and postnatal aspects.

Methods: A retrospective descriptive analysis of prenatally diagnosed conjoined twins. Prenatal ultrasound and echocardiography, delivery details, postnatal follow-up, surgical separation and post mortem data were reviewed.

View Article and Find Full Text PDF

Objective: To determine accuracy of first trimester detection of single umbilical artery (SUA).

Methods: The number of vessels in the umbilical cord was examined in a prospective cohort of 779 singleton, low-risk, unselected pregnancies, in the first (11-13 weeks) and second (17-24 weeks) trimesters, using both power and color Doppler and after delivery, by placental histopathologic exam. Concordance between first and second trimester findings to postnatal diagnoses was compared by calculating kappa coefficients.

View Article and Find Full Text PDF

Objective: To describe pregnancies with conjoined twins according to the request for legal termination of pregnancy.

Methods: Retrospective review of pregnancies with conjoined twins, with no possibility of extrauterine survival or postnatal surgical separation, observed at a tertiary teaching hospital, between 1998 and 2010.

Results: Amongst 30 cases seen during the study period, six (20.

View Article and Find Full Text PDF

Objective: To study fetal vitality assessed in pregnancies after gastroplasty with Roux-en-Y gastric bypass and verify maternal complications and perinatal results.

Methods: Hospital charts of all pregnancies after gastroplasty with Roux-en-Y gastric bypass were reviewed retrospectively. All cases followed at the specialized prenatal care that gave birth in this institution, between July 2001 and September 2009, were reviewed.

View Article and Find Full Text PDF

Objective: This study aimed to evaluate the perinatal outcome of twin pregnancies delivered in a tertiary teaching hospital according to chorionicity.

Methods: A retrospective study involving 289 twin pregnancies delivered from January 2003 to December 2006 was carried out. Maternal and perinatal data were obtained from hospital charts and delivery logs.

View Article and Find Full Text PDF

Objective: To determine normal blood flow velocities across the fetal tricuspid valve (TV) at 11-13 weeks and 6 days of gestation and to examine the reproducibility of these measurements.

Methods: A prospective study involving 166 normal singleton pregnancies examined at 11-13 weeks and 6 days was carried out. Descriptive analysis of E- and A-waves' maximum velocities, E/A ratio, duration of the cardiac cycle (C) and diastole (D) and D/C ratio were calculated.

View Article and Find Full Text PDF