Bi-based materials have emerged as highly efficient catalysts for the electroreduction of CO2 (ERC). However, their practical application is limited by their complex preparation procedures, poor CO2 adsorption, rate-limiting proton...

Objective The aim of this study was to compare the outcomes of with laparotomy or laparoscopy in the treatment of high-risk CSP and evalute the optimal treatment measure about it. Design A retrospective study. Setting Tongji Hospital. Population 278 patients with caesarean scar pregnancy between 2013 and 2018. Methods We compared and analysed the characteristics of the laparoscopic and open surgeries in the treatment of high-risk CSP and the advantages and disadvantages of different methods of vascular pretreatment. We also systematically evaluated CSP patients undergoing laparoscopic or laparotomic surgery. Results Intraoperative bleeding, transfusion rate, total days of hospitalization and postoperative hospital stay were better in laparoscopy than in laparotomy (p<0.05). There was no difference in the factors (β-HCG decrease, reoperation and tissue residues) closely related to the success of the surgery in the two groups. Furthermore, we pretreated blood vessels differently before the operation.

Objective The aim of this study was to compare the outcomes of laparotomy and laparoscopy in the treatment of highrisk caesarean scar pregnancy (CSP) and evaluate the optimal treatment measure. Design A retrospective study. Setting Tongji Hospital. Population Two hundred seventy-eight patients with CSP between 2013 and 2018. Methods We compared and analysed the characteristics of laparoscopic and open surgery in the treatment of high-risk CSP and the advantages and disadvantages of different methods of vascular pretreatment. We also systematically evaluated CSP patients undergoing laparoscopic or laparotomic surgery. Results The intraoperative bleeding volume, transfusion rate, and total number of days of