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The aim of this study was to define the pregnancy outcomes in women with congenitally corrected transposition of the great arteries (cc-TGA). The medical databases at Anzhen Hospital between January 2011 and March 2018 were retrospectively reviewed. Data of 12 pregnant women with cc-TGA were collected. One patient was lost at 35 weeks of gestation. There were 8 (72.7%) term births and 3 (27.3%) premature births. Of the 11 deliveries, 2 (18.2%) were vaginal and 9 (81.8%) were cesarean. The baseline New York Heart Association (NYHA) functional class was I - II in 11 patients, II - III in 7 patients, and III - IV in 5 patients in the third trimester (P = 0.037). In the third trimester, 6 (50%) patients became symptomatic and experienced heart function deterioration compared with asymptomatic patients (6 vs. 0, P = 0.002). In the third trimester, tricuspid regurgitation (TR) was identified in 11 patients: 2 with mild TR, 4 with moderate TR, and 5 with severe TR. Five symptomatic patients developed severe TR, in which the rate of TR was significantly higher than that of asymptomatic patients (5 vs. 0, P = 0.015). No difference was found in NYHA class between the third trimester and 1 week after delivery (P > 0.05). One patient died of ventricular fibrillation at 3 months postpartum. Successful pregnancy can be achieved by most women with cc-TGA. The deterioration of right ventricular function is common among pregnant women with cc-TGA, and severe TR is a high risk factor resulting in deterioration of the right ventricular function.

The recent development of ultrashort laser pulses allows for optical control of structural and electronic properties of complex quantum materials. The layered transition-metal dichalcogenide MoTe_{2}, which can crystallize into several different structures with distinct topological and electronic properties, provides possibilities to control or switch between different phases. In this study, we report a photoinduced subpicosecond structural transition between the type-II Weyl semimetal phase and normal-semimetal phase in bulk crystalline MoTe_{2} by using ultrafast pump-probe and time-resolved second-harmonic-generation spectroscopy. The phase transition is most clearly characterized by the dramatic change of the shear oscillation mode and the intensity loss of second-harmonic generation. This work opens up new possibilities for ultrafast manipulation of the topological properties of solids, enabling potentially practical applications for a topological switch device with ultrafast excitations.