A conditional standard for the customized fetal growth trajectory in twin pregnancy.

Background: The difference in the birth weights between twins and singletons grows with advancing gestation. Although many fetal weight standards based on ultrasonographic measurements have been created for tracking fetal growth in twin pregnancies, their applicability to other groups is limited by the fact that they are population specific.

Objective: This study aimed to generate conditional centiles for growth assessment of twin fetuses and to compare them with other population-based growth standards for singleton and twin fetuses.

Ablative effect of the interstitial laser setting in the human placental model.

Aim: To assess the impact of laser power and time on interstitial ablation generated by neodymium-doped yttrium aluminium garnet (Nd:YAG) and diode laser in the human placental model.

Methods: The experiment was carried out in a simulation model of interstitial laser ablation on ex-vivo placental tissue. One-hundred and forty-four pieces of fresh placentae were interstitially ablated with Nd:YAG or diode laser at various power (15, 20, 25, 30 W)-time (5, 10, 15 s) combinations.

Reference values for fetal Doppler-based cardiocirculatory indices in monochorionic-diamniotic twin pregnancy.

Background: Placental anastomoses in monochorionic diamniotic (MCDA) twin pregnancy have a major impact on fetal circulation. This study was designed to define reference ranges of cardiac and vascular Doppler indices in MCDA twin pregnancies.

Methods: This cross-sectional study included 442 uncomplicated MCDA twin fetuses undergoing Doppler ultrasonography at 18-35 weeks of gestation.

A 10-Year Retrospective Review of Prenatal Applications, Current Challenges and Future Prospects of Three-Dimensional Sonoangiography.

Realistic reconstruction of angioarchitecture within the morphological landmark with three-dimensional sonoangiography (three-dimensional power Doppler; 3D PD) may augment standard prenatal ultrasound and Doppler assessments. This study aimed to (a) present a technical overview, (b) determine additional advantages, (c) identify current challenges, and (d) predict trajectories of 3D PD for prenatal assessments. PubMed and Scopus databases for the last decade were searched.

Factors affecting Thai pregnant women's decisions concerning prenatal diagnosis and termination of pregnancy for β-thalassemia.

Aim: To investigate the factors influencing decisions concerning prenatal diagnosis (PND) and termination of pregnancy for β-thalassemia in Thai pregnant women.

Methods: A total of 142 Thai Buddhist pregnant women waiting for PND were asked to undertake semi-structured interviews regarding their reasons for PND and their decisions and reasoning concerning pregnancy if the fetus was found to be affected. The interviews were analyzed using a thematic content approach.

Morphology, intrafetal vascular pattern, and umbilical artery Doppler indices of acardiac twins.

Background: Twin reversed arterial perfusion (TRAP) sequence consists of acardiac twin (A) paradoxically perfused by pump twin (P) through an umbilical artery (UA). We proposed characterization of acardiac twins with intrafetal vascular pattern (IVP), and assessed its correlation with morphology and UA Doppler indices.

Methods: We prospectively evaluated 21 cases of TRAP sequence.

Simulation-based fetal shunting training.

Objectives: To develop a simulation model and assess the learning curve of fetal shunting.

Methods: Three staff and three trainees performed fetal shunting on a model using the fetal bladder stent. The model was evaluated according to various sources of validity evidence.

Comparison of Mannequin Training Satisfaction with a Conventional Box Trainer and a Low-Fidelity Fetoscopic Surgical Simulator for Selective Fetoscopic Laser Photocoagulation.

Background: A low-fidelity fetoscopic surgical simulator (FSS) for training of selective fetoscopic laser photocoagulation (SFLP) was developed.

Objective: To evaluate and compare training satisfaction with an FSS and with a conventional box trainer (BT).

Methods: The BT consisted of a cleaned human placenta attached to the inside of a plastic storage box with a watertight lock cover and an ultrasound-transparent rubber skin.

Advanced ultrasound for prenatal interventions.

Ultrasound is an integral part of prenatal interventions. Doppler studies and 3-dimensional ultrasound (3DUS) are frequently used to determine whether fetal surgery is required. The operator's experience remains crucial for reducing procedure-related morbidity.

Time and temperature dependence of radiofrequency ablation in the human placenta.

Objective: The objective of the study is to compare radiofrequency (RF) effects on fresh placentae with varying levels of sustained time (Ts) and degrees of target temperature (°t).

Method: A total of 108 pieces of fresh placentae were coagulated with a 2-cm RF needle at 60 W in an organ bath. The vertical and horizontal diameters (Vd, Hd) of tissue coagulation visualized by ultrasound were measured.

Satisfaction of healthy pregnant women receiving short message service via mobile phone for prenatal support: A randomized controlled trial.

Objective: The main objective was to compare the satisfaction levels of antenatal care between healthy pregnant women who received short message service (SMS) via mobile phone for prenatal support, and those who did not. The second objective was to compare the confidence, anxiety levels and also pregnancy outcomes.

Design: A randomized controlled trial.

Effect of halogen light in fetal stimulation for fetal well-being assessment.

Objective: To evaluate the shortening of the time of nonstress test (NST) by using transabdominal fetal stimulation with halogen light.

Study Design: Experimental research.

Material And Method: The authors enrolled 176 pregnant women between 32 and 42 weeks of gestation indicated for NST at the Division of Maternal Fetal Medicine, Siriraj Hospital, Mahidol University.

Noninvasive diagnosis of fetal anemia and fetal intravascular transfusion therapy: experiences at Siriraj Hospital.

Traditionally, when fetal hydrops are found along with certain markers indicating fetal anemia, fetal blood sampling would be performed through cordocentesis to confirm the diagnosis. This procedure, however comes with an inherent risk of losing the whole pregnancy. When anemia was verified, treatment options were limited and the prognosis was grim.