Successful laparoscopic removal of ovarian borderline cystadenoma in patient with multiorgan hemangioma and ventriculoperitoneal shunt: a case report and literature review.

As medical diagnosis and treatment level improved, patients with ventriculoperitoneal shunt (VPS) live longer and may develop conditions that need laparoscopic surgery. The safety of laparoscopy in patients with VPS continues to be challenged due to pneumoperitoneum. Here, we report a patient with medical history of VPS and hemangioma, diagnosed with ovarian borderline mucinous cystadenoma, received laparoscopic surgery in supine position and 10 mmHg pneumoperitoneum pressure, in which no clamping or externalizing catheter, no perioperative or postoperative complications. We also present a literature review and discuss the precautions needing considering during laparoscopy. For patients with VPS, laparoscopic surgery can be recognized as a potentially safe and feasible procedure.

Highly efficient removal of Sb(V) from water by franklinite-containing nano-FeZn composites.

The existence of toxic and carcinogenic pentavalent antimony in water is a great safety problem. In order to remove antimony(V) from water, the purpose of this study was to prepare a novel graphene nano iron zinc (rGO/NZV-FeZn) photocatalyst via hydrothermal method followed by ultrasonication. Herein, weakly magnetic nano-Fe-Zn materials (NZV-FeZn, GACSP/NZV-FeZn, and rGO/NZV-FeZn) capable of rapid and efficient Sb(V) adsorption from water were prepared and characterised. In particular, rGO/NZV-FeZn was shown to comprise franklinite, Fe0, and graphite. Adsorption data were fitted by a quasi-second-order kinetic equation and Langmuir model, revealing that among these materials, NZV-FeZn exhibited the best Sb removal performance (543.9 mgSb gNZV-FeZn-1, R2 = 0.951). In a practical decontamination test, Sb removal efficiency of 99.38% was obtained for a reaction column filled with 3.5 g of rGO/NZV-FeZn. Column regenerability was tested at an initial concentration of 0.8111 mgSb L-1, and the treated water obtained after five consecutive runs complied with the GB5749-2006 requirement for Sb. rGO/NZV-FeZn was suggested to remove Sb(V) through adsorption-photocatalytic reduction and flocculation sedimentation mechanisms and, in view of its high cost performance, stability, and upscalable synthesis, was concluded to hold great promise for source water and wastewater treatment.