Clinical Experience of Patients with Full-Term Uterine Incarceration: Case Report

Uterine incarceration is a rare disease of abnormal uterine morphology, the proportion during pregnancy was 1 in 3000 - 10,000. Previously reported patients with uterine incarceration have different symptoms. Rarely, asymptomatic cases persist into the third trimester of pregnancy. In fact, the patients with uterine incarceration can be asymptomatic and normally carry their fetuses to the term because it mainly changes the cervix, which does not affect fetal growth in utero directly. Additionally, cesarean section is both a treatment and a direct method to clarify the diagnosis again, and low-molecular-heparin anticoagulant therapy should be considered immediately after surgery. Here, we present two cases clarifying that patients with uterine incarceration can be pregnant without any discomfort during pregnancy and provide a successful treatment plan.

Acute Aortic Dissection in Third Trimester Pregnancy with Well Controlled Hypertension

We describe a 32-year-old pregnant woman at 31 + 6 weeks of gestation who presented to a tertiary-care hospital with headache and back pain. She was found to have a sign of tear about 1.3 cm away from the aortic valve, and the torn intima extended upward to the ascending aorta and the descending part of the aortic arch. She delivered a live male neonate via cesarean delivery. She had a history of hypertension with oral Labetalol 50 mg twice times daily. At the very beginning of the onset, physicians in the emergency room wouldn’t be aware of the symptoms of aortic dissections, as well as atypical presentations which include anterior chest pain or chest pain radiating to the back. She was only received anti-hypertension management, until her symptoms of back pain aggravated, and an aortic dissection was confirmed by ultrasound and CT angiography. Then she received a mechanical aortic valve replacement. After 51 days of treatment, she was discharged and recovered without any complications. Aortic dissection in pregnancy is a rare disease. We recommend transthoracic echocardiography every 1 to 2 months to monitor the diameter of the ascending aorta during pregnancy in which patients with hypertension problems or other risk factors of aneurysm and perform the CT angiography scan to confirm aortic dissection in a pregnant or postpartum woman with suspicious pain symptoms. It is essential that multidisciplinary approach in which teams must urgently collaborate to ensure the protection life of both mother and baby.

Anisotropic Plasmon Resonance Enables Spatially Controlled Photothermal and Photochemical Effects in Hot Carrier-Driven Catalysis

Localized surface plasmon resonance has been demonstrated to provide effective photophysical enhancement mechanisms in plasmonic photocatalysis.However,it remains highly challenging for distinct mechanisms to function in synergy for a collective gain in catalysis due to the lack of spatiotemporal control of their effect.Herein,the anisotropic plasmon resonance nature of Au nanorods was exploited to achieve distinct functionality towards synergistic photocatalysis.Photothermal and photochemical effects were enabled by the longitudinal and transverse plasmon resonance modes,respectively,and were enhanced by partial coating of silica nanoshells and epitaxial growth of a reactor component.Resonant excitation leads to a synergistic gain in photothermal-mediated hot carrier-driven hydrogen evolution catalysis.Our approach provides important design principles for plasmonic photocatalysts in achieving spatiotemporal modulation of distinct photophysical enhancement mechanisms.It also effectively broadens the sunlight response range and increases the efficacy of distinct plasmonic enhancement pathways towards solar energy harvesting and conversion.

Improved air quality and reduced burden of preterm birth in China:2013–2017

Preterm birth(PTB)is a leading cause of perinatal mortality and morbidity worldwide[1].Since maternal and fetal health protection has been included in the United Nations Sustainable Development Goals,identification of modifiable risk factors for PTB is particularly crucial.The Global Burden of Disease(GBD)Study 2019 recognized fine particulate matter(PM2.5)pollution as a risk factor for decreased gestational age and low birth weight.