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Ovarian Stromal Hyperplasia: A Rare Cause of Postmenopausal Hyperandrogenism
Teresa Lozoya Araque,Isauro Rogelio Monfort Ortiz,José Enrique Martín González,Alenda Jiménez García,Inmaculada Navarro Hidalgo,Verónica Andrade Gamarra,Cecilia Parrell Soler,Fernando Gil Raga 대한폐경학회 2020 대한폐경학회지 Vol.26 No.1
Ovarian hyperthecosis and ovarian stromal hyperplasia (OSH) are two uncommon non-neoplastic causes of ovarian hyperandrogenism, whose etiology is still unknown. These conditions are characterized by obesity, hyperinsulinemia, acanthosis nigricans, and even virilization, mainly in postmenopausal women. Here we have reported the case of a 67-year-old patient with a diagnosis of OSH, which was resolved after bilateral laparoscopic oophorectomy. In this case report, we have discussed two different conditions posing a diagnostic challenge and requiring a high index of suspicion.
Sara Dominguez,Maria J. Rivero,Pedro Gomez,Raquel Iban˜ez,Inmaculada Ortiz 한국공업화학회 2016 Journal of Industrial and Engineering Chemistry Vol.37 No.-
Photocatalysis is an effective technology for the removal of organic pollutants from wastewater. Artificiallight sources are still required for continuous operation, representing a large fraction of the operatingcosts. Thus, energy efficiency becomes a key issue that needs optimization. In this work, the performanceof a novel upgraded Light Emitting Diodes (LED) reactor was studied varying the radiation applied. Theevaluation was based on the degradation yield of the surfactant sodium dodecylbenzenesulfonate(SDBS) and on the energy requirement, determined by the parameter ‘‘Electrical Energy per Order’’ (EEO). The best SDBS removal, 94% after 480 min, was attained using 27.5 mW cm 2. Nevertheless, the bestenergy consumption was for 3.22 mW cm 2, with an EEO of 47.5 kW h m 3 order 1. Moreover, thehydroxyl radicals ( OH) generated were quantified and a three-region kinetic model consideringradiation was proposed. 92% of the simulated results fell within [ OH]gen,exp 15% [ OH]gen,exp. Furthermore, a comparison with a 1st generation LED reactor and a Hg lamp reactor was carried out. The lastone showed the highest performance, achieving complete SDBS removal after 360 min; however, its energyrequirement was one order of magnitude higher than that of the upgraded LED reactor.
Mirizzi syndrome : a new insight provided by a novel classification
Carmen Paya-Llorente,Antonio Vazquez-Tarragon,Antonio Alberola-Soler,Aleix Martinez-Perez,Elias Martinez-Lopez,Sandra Santarrufina-Martinez,Inmaculada Ortiz-Tarin,Ernesto Armananzas-Villena 한국간담췌외과학회 2017 Annals of hepato-biliary-pancreatic surgery Vol.21 No.2
Backgrounds/Aims: Mirizzi syndrome (MS) is an uncommon complication of cholelithiasis. The aim of this study is to evaluate our 15-year experience in this challenging entity and to propose a new classification for this disease. Methods: A retrospective study including patients diagnosed with Mirizzi syndrome and undergoing surgical procedures for Mirizzi syndrome between January 2000 and October 2015 was conducted. Data collected included clinical, surgical procedure, postoperative morbidity. Patients were evaluated according to the Csendes classification and the proposed system, in which patients were divided into three types and three subtypes. Results: 28 patients were included for analysis. They accounted as the 0.5% of a total of 4853 cholecystectomies performed in the study period. There were 21 women and 7 men. Initial laparotomic approach was performed in 12 patients and in 16 patients laparoscopic procedures were attempted. The procedure was completed in only 6 patients, 5 presenting type I and 1 type II Mirizzi syndrome. Mean postoperative stay was 15±9 days. Postoperative morbidity rate was 28%. Postoperative mortality was none. Conclusions: Laparoscopic surgery for Mirizzi syndrome has been shown succesful only in early stages. A novel classification is proposed, based on the types of common bile duct injuries and in the presence cholecystoenteric fistula.