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Which patients benefit the most?An update on transjugular intrahepatic portosystemic shunt
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作者 Angelo Alves de Mattos Angelo Zambam de Mattos +1 位作者 Muriel Manica Cristiane Valle Tovo 《World Journal of Hepatology》 2025年第2期4-13,共10页
This is a narrative review in which the advances in technical aspects,the main indications,limitations and clinical results of the transjugular intrahepatic portosystemic shunt(TIPS)in portal hypertension(PH)are addre... This is a narrative review in which the advances in technical aspects,the main indications,limitations and clinical results of the transjugular intrahepatic portosystemic shunt(TIPS)in portal hypertension(PH)are addressed.With the emergence of the coated prosthesis,a better shunt patency,a lower incidence of hepatic encephalopathy(HE)and better survival when compared to TIPS with the conventional prosthesis are demonstrated.The main indications for TIPS are refractory ascites,acute variceal bleeding unresponsive to pharmacological/endoscopic therapy and,lastly,patients considered at high risk for rebleeding preemptive TIPS(pTIPS).Absolute contraindications to the use of TIPS are severe uncontrolled HE,systemic infection or sepsis,congestive heart failure,severe pulmonary arterial hypertension,and biliary obstruction.The control of hemorrhage due to variceal rupture can reach up to 90%-100%of cases,and 55%in refractory ascites.Despite evidences regarding pTIPS in patients at high risk for rebleeding,less than 20%of eligible patients are treated.TIPS may also decrease the incidence of future decompensation in cirrhosis and increase survival in selected patients.In conclusion,TIPS is an essential treatment for patients with PH,but is often neglected.It is important for the hepatologist to form a multidisciplinary team,in which the role of the radiologist with experience in interventional procedures is prominent. 展开更多
关键词 Transjugular intrahepatic portosystemic shunt Refractory ascites Variceal bleeding Portal hypertension Hepatic encephalopathy
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Primary liver transplantation vs transplant after Kasai portoenterostomy in children with biliary atresia: A retrospective Brazilian single-center cohort
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作者 Melina Utz Melere Valberto Sanha +7 位作者 Marco Farina Carolina Soares da Silva Luiza Nader Cristine Trein Angelica Maria Lucchese Cristina Ferreira Antonio Nocchi Kalil Flavia Heinz Feier 《World Journal of Transplantation》 2024年第1期112-119,共8页
BACKGROUND Biliary atresia(BA)is the most common indication for pediatric liver transplantation,although portoenterostomy is usually performed first.However,due to the high failure rate of portoenterostomy,liver trans... BACKGROUND Biliary atresia(BA)is the most common indication for pediatric liver transplantation,although portoenterostomy is usually performed first.However,due to the high failure rate of portoenterostomy,liver transplantation has been advocated as the primary procedure for patients with BA.It is still unclear if a previous portoenterostomy has a negative impact on liver transplantation outcomes.AIM To investigate the effect of prior portoenterostomy in infants un-dergoing liver transplantation for BA.METHODS This was a retrospective cohort study of 42 pediatric patients with BA who underwent primary liver transplantation from 2013 to 2023 at a single tertiary center in Brazil.Patients with BA were divided into two groups:Those undergoing primary liver transplantation without portoenterostomy and those undergoing liver transplantation with prior portoenterostomy.Continuous variables were compared using the Student’s t-test or the Kruskal-Wallis test,and categorical variables were compared using theχ2 or Fisher’s exact test,as appropriate.Multivariable Cox regression analysis was performed to determine risk factors for portal vein thrombosis.Patient and graft survival analyses were conducted with the Kaplan–Meier product-limit estimator,and patient subgroups were compared using the two-sided log-rank test.RESULTS Forty-two patients were included in the study(25[60%]girls),23 undergoing liver transplantation without prior portoenterostomy,and 19 undergoing liver transplantation with prior portoenterostomy.Patients with prior portoenterostomy were older(12 vs 8 months;P=0.02)at the time of liver transplantation and had lower Pediatric End-Stage Liver Disease scores(13.2 vs 21.4;P=0.01).The majority of the patients(35/42,83%)underwent livingdonor liver transplantation.The group of patients without prior portoenterostomy appeared to have a higher incidence of portal vein thrombosis(39 vs 11%),but this result did not reach statistical significance.Prior portoenterostomy was not a protective factor against portal vein thrombosis in the multivariable analysis after adjusting for age at liver transplantation,graft-to-recipient weight ratio,and use of vascular grafts.Finally,the groups did not significantly differ in terms of post-transplant survival.CONCLUSION In our study,prior portoenterostomy did not significantly affect the outcomes of liver transplantation. 展开更多
关键词 Hepatic portoenterostomy Biliary atresia Liver transplantation Patient outcome assessment Portal vein Survival
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Progression of Corneal Astigmatism after Phaco-Alternative at the University Hospital Center of the Oueme-Plateau Department in Porto-Novo
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作者 Chakiratou Olaïdé Adoukê Abouki Edjrokinto Ahomadegbe Djrodéhou Espérancia Neuilly +4 位作者 Issifou Amadou Alfa Bio Nestor Aïgbè Soulé Alamou Lisette Odoulami Ignace Sounouvou 《Open Journal of Ophthalmology》 2024年第3期313-323,共11页
Objective: To study the postoperative evolution of corneal astigmatism following phaco-alternative at the University Hospital Center of Ouémé-Plateau (UHC-OP) in Porto-Novo. Method: This was a prospective, c... Objective: To study the postoperative evolution of corneal astigmatism following phaco-alternative at the University Hospital Center of Ouémé-Plateau (UHC-OP) in Porto-Novo. Method: This was a prospective, cross-sectional study with a descriptive and analytical purpose conducted from April 19 to September 20, 2021;a period of 6 months. The study included all patients presenting with senile or non-senile cataracts without a history of corneal trauma and who underwent phaco-alternative during the study period. Results: A total of 62 eyes underwent phaco-alternative. The average age was 63 ± 12 years with a male predominance of 59.7%. Phaco-alternative was performed with 74.2% linear incision and 25.8% smile incision. Perioperative incidents were mainly capsular ruptures with vitreous loss occurring in 8.1% of cases. The mean preoperative astigmatism was 1.29 ± 1.5 D with an axis of 180˚ ± 20˚, indicating with-the-rule astigmatism. The mean postoperative astigmatism was 2.2 ± 1.5 D with an axis of 90˚ ± 20˚, indicating against-the-rule astigmatism. The mean induced astigmatism at Day 30 was 1.4 ± 1.2 D for smile incision and 1.8 ± 1.2 D for linear incision. Conclusion: Phaco-alternative yields good results with few complications but remains astigmatogenic. The smile incision appears to be less astigmatogenic. 展开更多
关键词 Cataract Phaco-Alternative Smile Incision ASTIGMATISM
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SSME在欧洲的教学:Porto和Masaryk大学的一个联合硕士培养计划(英文)
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作者 Joo Falcoe Cunha Petra Hocov +1 位作者 Lia Patrício Zdenko Staníek 《计算机系统应用》 2009年第6期175-181,共7页
Service Science,Engineering and Management(SSME)is emerging as a new discipline and several universities have been evolving or creating courses/programs to educate for the needs of the service fields of the economy.Th... Service Science,Engineering and Management(SSME)is emerging as a new discipline and several universities have been evolving or creating courses/programs to educate for the needs of the service fields of the economy.The University of Porto started in 2007 a master program in Service Engineering and Management,and Masaryk University started in 2008 a program in Service Science,Management,and Engineering.Both programs concentrate on services that are supported by technology,in particular information and communication technologies.This paper presents a summary of both programs and a proposal for a joint 2 year master program involving the two universities that is expected to start in 2010.Students in this program will take courses in the two universities,and lecturers will be involved in joint research projects. Individual students will have a semester research or applied project in a European service organization,being supervised by a lecturer or a researcher from each universities.It is expected that graduates will understand technological,organizational and cultural aspects of the diverse businesses in a wide European context and will be ready for service requirements of this century. 展开更多
关键词 SSME 欧洲 教学 Porto大学 Masaryk大学 联合硕士培养计划
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Evaluation of the Knowledge and Practice about Diabetes Mellitus of Adult Population in Porto Novo (Benin)
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作者 Finangnon Armand Wanvoegbe Kouessi Anthelme Agbodandé +4 位作者 Arnaulde Amoussou-Guenou Fandi Marius Boko Adébayo Alassani Annelie Kerekou Daniel Amoussou-Guenou 《Journal of Diabetes Mellitus》 2016年第3期204-207,共5页
Background: Diabetes mellitus is one of the most common non-communicable diseases in the world. The aim of our study was to assess the level of knowledge of the adult population of Porto-Novo on clinical manifestation... Background: Diabetes mellitus is one of the most common non-communicable diseases in the world. The aim of our study was to assess the level of knowledge of the adult population of Porto-Novo on clinical manifestations and complications of diabetes mellitus. Methods: It is a descriptive cross-sectional study conducted under STEP wise approach. It took place from June 1 to July 28, 2014. Results: A total of 240 subjects were included in the study. The mean age of the subjects was 46.07 years ± 12.63 years, ranging from 25 to 80 years. Subjects age between 35 - 45 years are the most represented. Women were mostly represented 162 against 78 men respectively 67.5% against 32.5% with sex ratio of 0.48. The majority of the subjects were scholar (73.3%). For clinical manifestations of diabetes mellitus, 64.2% of subjects had quoted polyuria, asthenia 57.5%, 56.7% weight loss. Polydipsia and polyphagia were less familiar with, respectively, 27.5% and 23.3%. Regarding the complications of diabetes, diabetic foot and coma were the best known, respectively, 78.8% and 58.8%. Nephropathy (45.0%), 39.6% retinopathy and neuropathy (21.7%) were the least known. The prevalence of physical inactivity in this study population was 95.0%. It was 98.1% in women versus 88.5% for men. Conclusion: Diabetes mellitus, whose prevalence is steadily increasing, is not yet well known in our population. 展开更多
关键词 KNOWLEDGE DIABETES Porto-Novo
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Dementia and Diabetes Mellitus in Porto-Novo: Frequency and Determining Factors
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作者 Finangnon Armand Wanvoegbe Dieu Donne Gnonlonfoun +7 位作者 Kouessi Anthelme Agbodande Arnaulde Amoussou-Guenou Fandi Muriel Bernice Gnanguenon Angèle Azon-Kouanou Constant Adjien Daniel Amoussou-Guenou Djimon Marcel Zannou Dismand Houinato 《Open Journal of Internal Medicine》 2021年第4期246-257,共12页
<strong>Background:</strong> Chronic hyperglycemia promotes the development of degenerative diseases such as dementia. Our objective is to study dementia in diabetic patients in a hospital environment in P... <strong>Background:</strong> Chronic hyperglycemia promotes the development of degenerative diseases such as dementia. Our objective is to study dementia in diabetic patients in a hospital environment in Porto-Novo. <strong>Methods:</strong> This is a cross-sectional, prospective study with a descriptive and analytical aim that took place from May 18 to September 18, 2017, <i>i.e.</i> 4 months. The study population consists of all diabetic patients who consulted in the internal medicine departments of the Oueme-Plateau Teaching Hospital and at Saint Gérard clinic in Porto-Novo during the study period and who gave their enlightened consent. <strong>Results:</strong> The study included 246 patients with a mean age of 56.47 ± 11.97 years. There were 172 (69.9%) women, <i>i.e.</i> a sex ratio of 0.43. Diabetes had been known for less than 10 years in the majority (67.9%). Type 2 diabetics were in the majority (95.5%). Of the 246 patients, 42 (17.1%) had a Mini Mental State Examination (MMSE) less than or equal to 24. Of these 42 patients, 32 met the DSM V (Diagnostic and Statistical Manual disorders, 5th edition) criteria for dementias, i.e. a frequency of 13.0%. Of the 32 demented patients, 21 (65.6%) had vascular dementia and 34.4% had degenerative dementia. We did not note a mixed etiology. Dementia was severe in 15.6% of cases. In multivariate analysis, only age (OR = 10.09;95% CI [4.19 - 24.27];p < 0.001), arterial hypertension (OR = 7.10;95% CI [1.92 - 26.22];p = 0.003), and alcohol consumption (OR = 3.95;95% CI [1.29 - 12.15];p = 0.017) were statically associated with the onset of dementia in our diabetic patients. <strong>Conclusion:</strong> Screening for dementia should be systematic in diabetics, especially at old age. 展开更多
关键词 DEMENTIA DIABETES Porto-Novo BENIN
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Lower Limb Arteriopathy in Diabetics at the Oueme-Plateau Provincial Hospital in Porto-Novo: Frequency and Associated Factors
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作者 Finangnon Armand Wanvoegbe Comlan Jules Gninkoun +8 位作者 Corine Houehanou Kouessi Anthelme Agbodande François Akotegnon Hubert Dedjan Rolande Quenum Manchouhoud Alalade Adebayo Alassani Albert Dovonou Angele Azon-Kouanou 《Open Journal of Internal Medicine》 2023年第4期295-303,共9页
Introduction: The distribution of arteriopathy of the lower limbs (ALL) is not familiar in the city of Porto-Novo. The aim of this study was to determine the prevalence and associated factors of ALL in diabetic patien... Introduction: The distribution of arteriopathy of the lower limbs (ALL) is not familiar in the city of Porto-Novo. The aim of this study was to determine the prevalence and associated factors of ALL in diabetic patients in treatment at the Oueme-Plateau Provincial Teaching Hospital. Methods: This was a cross-sectional, descriptive, and analytical study from July 12 to October 10, 2021, at the Oueme-Plateau Provincial Teaching Hospital in Porto-Novo. ALL was screened by performing systolic pressure index (SPI) in all diabetic patients aged at least 18 years, seen in consultation or hospitalization during the study period and who had given their consent. Results: The study registered 165 diabetics and 98.2% of them were type 2. Subjects aged between 55 and 65 years were the most represented (33.9%), with an average age of 59.4 years. Women were in the majority (61.2%), with a sex ratio of 0.6. High blood pressure was associated with diabetes in 61.2% of patients. The prevalence of ALL was 48.5% (80 patients). Obliterative arteriopathy of the lower limbs (OALL) was observed in 70 patients (42.4%), mediacalcosis in 8 patients (4.8%), and mixed arteriopathy in 2 patients (1.2%). In 88.5% of patients, the pathology was symptomless. Factors significantly associated with ALL included advanced age (p = 0.01), the age of the glycemic imbalance (p = 0.03), lack of regular physical activity (p = 0.001) and dyslipidemia (p = 0.008). Conclusion: Pelvic limb arteriopathy is usual among diabetics at Oueme-Plateau Provincial Teaching Hospital. The use of SPI, which enables diagnosis, requires simple, low-cost means, and should be encouraged. 展开更多
关键词 ALL DIABETES OALL Porto-Novo Systolic Pressure Index
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Presence of Multidrug-Resistant <i>E. coli</i>, <i>Enterococcus</i>spp. and <i>Salmonella</i>spp. in Lakes and Fountains of Porto, Portugal 被引量:1
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作者 Carlos E. Flores Luís Loureiro +1 位作者 Lucinda J. Bessa Paulo Martins da Costa 《Journal of Water Resource and Protection》 2013年第11期1117-1126,共10页
Urban lakes and fountains provide recreational activities that could facilitate the contact between humans, animals and biological agents. The objective of this work was to assess the water quality and safety of 17 la... Urban lakes and fountains provide recreational activities that could facilitate the contact between humans, animals and biological agents. The objective of this work was to assess the water quality and safety of 17 lakes and 13 fountains in the city of Porto (Portugal), by detecting the presence of Escherichia coli, enterococci and Salmonella spp., and analyzing their antimicrobial resistance. (For more information,please refer to the pdf.) 展开更多
关键词 Antimicrobial Resistance ENTEROCOCCUS spp. Escherichia COLI SALMONELLA spp. Fountains Lakes
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Early Hepatic Encephalopathy after a Transjugular Intrahepatic Portosystemic Shunt Procedure: Case Report 被引量:1
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作者 Miriam Viviane Baron Gabriela Di Lorenzo Garcia Scherer +16 位作者 Michele Paula dos Santos Andres Felipe Mantilla Santamaria Cristine Brandenburg Isabel Cristina Reinheimer Marcus Vinicius de Mello Pinto Aline Ronis Sampaio Alexandre Gomes Sancho Alexandre Gomes Sancho Esteban Fortuny Pacheco Felice Picariello Danielle de Mello Florentino Joice Nedel Ott Carolina Gonçalves Pinheiro Nathália Ken Pereira Iketani Sonia Carvalho Patrícia Froes Meyer Bartira Ercília Pinheiro da Costa 《Open Journal of Gastroenterology》 2021年第6期81-88,共8页
Patients with decompensated hepatic cirrhosis may present systemic alterations and dysfunction of multiple organs. Ascites, portal hypertension, esophageal varices, and hepatic encephalopathy are common complications ... Patients with decompensated hepatic cirrhosis may present systemic alterations and dysfunction of multiple organs. Ascites, portal hypertension, esophageal varices, and hepatic encephalopathy are common complications arising from cirrhosis. The aim of this paper is to report a case of a patient with liver cirrhosis and the complications of a transjugular intrahepatic portosystemic shunt.</span><b> </b><span style="font-family:Verdana;">Male, elderly, and ex-alcoholic, diagnosed with liver cirrho</span><span style="font-family:Verdana;">sis, ascites, and esophageal varices. He underwent transjugular intrahepatic portosystemic shunt due to portal hypertension and returned to the hospital</span> <span style="font-family:Verdana;">after 24 hours with agitation and mental confusion. He had a bowel move</span><span style="font-family:Verdana;">ment stop, neurological worsening, loss of renal function, hepatic hydrothorax, hepatic encephalopathy, hypernatremia, hypocalcemia, and hypophosphatemia. He underwent a new procedure to occlude the transjugular intrahepatic portosystemic shunt, showing improvement of the mental status and ascites. However, continued with decompensation and hydro-electrolytic disorders. He evolved with worsening of the ventilatory pattern, and neurological and renal function, with a fatal outcome.</span><b> </b><span style="font-family:Verdana;">Esophageal varices due to portal hypertension can be corrected with the transjugular intrahepatic portosystemic shunt. However, complications such as hypernatremia, hepatic hydrothorax, and hepatic encephalopathy may occur. Therefore, there is a need for reintervention to shunt or reduce its caliber. Thus, for patients with advanced age and decompensated cirrhosis, the potential risks and benefits of this procedure should be carefully evaluated due to the risk of complications and death. 展开更多
关键词 ASCITES HYPERNATREMIA Portasystemic Shunt Transjugular Intrahepatic Hepatic Encephalopathy
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Wastewater-based epidemiological investigation of SARS-CoV-2 in Porto Alegre,Southern Brazil 被引量:1
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作者 Bruno Aschidamini Prandi Arthur Tonietto Mangini +13 位作者 Waldemir Santiago Neto Andre Jarenkow Lina Violet-Lozano Aline Alves Scarpellini Campos Evandro Ricardo da Costa Colares Paula Regina de Oliveira Buzzetto Camila Bernardes Azambuja Lisiane Correa de Barros Trombin Margot de Souza Raugust Rafaela Lorenzini Alberto da Silva Larre Caroline Rigotto Fabrício Souza Campos Ana Claudia Franco 《Science in One Health》 2022年第1期67-75,共9页
Wastewater-based epidemiology(WBE)may be successfully used to comprehensively monitor and determine the scale and dynamics of some infections in the community.We monitored severe acute respiratory syndrome coronavirus... Wastewater-based epidemiology(WBE)may be successfully used to comprehensively monitor and determine the scale and dynamics of some infections in the community.We monitored severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)RNA in raw wastewater samples from Porto Alegre,Southern Brazil.The samples were collected and analyzed every week between May 2020 to May 2021.Meanwhile,different social restrictions were applied according to the number of hospitalized patients in the region.Weekly samples were obtained from two wastewater treatment plants(WWTP),named Navegantes and Serraria.To determine the SARS-CoV-2 RNA titers in wastewater,we performed RT-qPCR analysis targeting the N gene(N1).The highest titer of SARS-CoV-2 RNA was observed between epidemiological weeks(EWs)33-37(August),42-43(October),45-46(November),49-51(December)in 2020,and 1-3(January),7-13(February to March)in 2021,with viral loads ranging from 1-106-3-106 genomic copies/Liter.An increase in positive confirmed cases followed such high viral loads.Depending on the sampling method used,positive cases increased in 6-7 days and 15 days after the rise of viral RNA titers in wastewater,with composite sampling methods showing a lower time lag and a higher resolution on the analyses.The results showed a direct relation between strict social restrictions and the loads of detected RNA reduction in wastewater,corroborating the number of confirmed cases.Differences in viral loads between different sampling points and methods were observed,as composite samples showed more stable results during the analyzed period.Besides,viral loads obtained from samples collected at Serraria WWTP were consistently higher than the ones obtained at Navegantes WWTP,indicating differences in local dynamics of SARS-CoV-2 spread in different regions of Porto Alegre.In conclusion,wastewater sampling to monitor SARS-CoV-2 is a robust tool to evaluate the viral loads contributing to hospitalized patients’data and confirmed cases.In addition,SARS-CoV-2 detection in sewage may inform and alert the government when there are asymptomatic or nontested patients. 展开更多
关键词 SARS-CoV-2 Wastewater based epidemiology Social restrictions RT-QPCR ULTRACENTRIFUGATION
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Social Media and the Impact on Alcohol Consumption: A Study among Academics from a Public University in a Western Amazon City, Porto Velho, Brazil
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作者 Rosely Valéria Rodrigues Marina Gomes Martellet +1 位作者 Giovanna Lorena Nery Tavernard Sérgio Valério Escobar Filho 《Social Networking》 2019年第3期113-121,共9页
This is a descriptive study of quantitative approach, developed at the Federal University of Rond?nia located in the Western Amazon. With the aim of analyzing the frequency of visualization of alcoholic content in the... This is a descriptive study of quantitative approach, developed at the Federal University of Rond?nia located in the Western Amazon. With the aim of analyzing the frequency of visualization of alcoholic content in the Facebook, Instagram and Snapchat, patterns of consumption, reasons that lead them to drink, most used social network and to correlate how often the users are exposed to alcoholic publications, determining if there was an important link between individual drinking practice during the beginning period and six months later. The information was obtained through the application of questionnaires for incoming students of the freshmen semester, in two moments: a period from August to December 2016/2, and, asking the same students again, from March to June 2017/1. 52.8% were males in 2016/2 and 57, 9% of females in 2017/1 with age ranging between 18 and 20 years in both periods. Facebook has proven to be the most used platform among college students. In 2016/2, 63.9% reported seeing alcohol content at Facebook and consuming that substance, comparing to Instagram with 70.4%, and to Snapchat with 74.1%. In 2017/2, academics reporting viewing alcoholic content on Facebook and consuming those alcoholic beverages accounted for 65.8%, compared to Instagram, 74.1% and Snapchat 74.4%. “Celebrating a special occasion with friends” is the most cited reason of why claim to consume alcohol. Therelation between exposure to the alcohol content of the virtual media and the network of friends was found imperceptible to the majority of the students, as they mostly do not consider themselves exposed. Many university students start the graduation already consuming alcoholic substances, which explains why there is no significant change in alcohol consumption between the observed moments, although it was found a relationship between the visualization of alcohol content in social networks and consumption, with greater impact on Snapchat. 展开更多
关键词 SOCIAL Network ALCOHOL COLLEGE STUDENTS
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Seasonal Influence in Traffic-Related Air Pollutants Concentrations in Urban Parks from Porto Alegre,Brazil
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作者 Bruna Marmett Roseana Boek Carvalho +1 位作者 Fernanda Ramos Rhoden Cláudia Ramos Rhoden 《Open Journal of Air Pollution》 2019年第4期96-107,共12页
Traffic-related air pollution is an alarming source of pollutants exposure and consequently to the development of several adverse health effects. Otherwise, green spaces are reported to improve health status. Although... Traffic-related air pollution is an alarming source of pollutants exposure and consequently to the development of several adverse health effects. Otherwise, green spaces are reported to improve health status. Although, in an urban scenario most of these areas are located near air pollutants sources, as vehicle fleet. Thus, the aim of the present study was to determine, during one year, the levels of nitrogen dioxide (NO2) and ozone (O3) in the main parks from Porto Alegre—Brazil. This study focused on three urban parks: Germania, Moinhos de Vento and Marinha do Brasil Park. Nitrogen dioxide and ozone measurements were accessed by passive monitoring in four campaigns including all seasons and performed at distances of 0 m, 15 m, 30 m, 45 m, 60 m and 75 m from the main road at each park. NO2 and O3 concentration among the parks was not different (p > 0.05), as well as the mean concentration of NO2 and O3 of all parks in the six sites did not differ (p > 0.05). However, season 1 and 3 showed increased NO2 and O3 concentration. Temperature were decreased in season 1 and 3 (p p > 0.05). Traffic flow was higher in Moinhos de Vento Park and Marinha do Brasil Park compared to Germania Park (p 2 and O3 concentration in urban parks from Porto Alegre. 展开更多
关键词 Air Pollution Environmental Monitoring Urban Parks Seasonal Variation
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Non-tumoral portal vein thrombosis in liver transplantation:Surgical perspectives and institutional protocol
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作者 Pablo Duarte Rodrigues Gabriel Lazzarotto-da-Silva +4 位作者 Flávia Heinz Feier Tomaz J M Grezzana Filho Cleber Rosito Pinto Kruel Ian Leipnitz Marcio Fernandes Chedid 《World Journal of Gastrointestinal Surgery》 2025年第8期46-55,共10页
Non-tumoral portal vein thrombosis(PVT)is a frequent and challenging complication in liver transplant candidates.The prevalence reaches up to 26%in patients with cirrhosis on a transplant waiting list.Its severity inc... Non-tumoral portal vein thrombosis(PVT)is a frequent and challenging complication in liver transplant candidates.The prevalence reaches up to 26%in patients with cirrhosis on a transplant waiting list.Its severity increases with liver disease progression and significantly impacts post-transplant outcomes.Advanced PVT increases postoperative mortality to 30%.Effective management requires a multidisciplinary approach,especially in advanced cases.Preoperative strategies emphasize anticoagulation with low molecular weight heparin,while interventional radiology,including transjugular intrahepatic portosystemic shunts,offers alternatives in some cases.Intraoperatively,management is guided by PVT classification systems,ranging from thrombectomy and portal vein reconstruction to non-physiological reconstructions in complex cases.This manuscript explores the management of PVT in liver transplantation candidates,discusses strategies to optimize outcomes,and presents our institutional protocol for addressing this high-risk condition. 展开更多
关键词 Non-tumoral portal vein thrombosis Liver transplantation CIRRHOSIS ANTICOAGULATION Portal vein reconstruction THROMBECTOMY Portosystemic shunts
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自适应多保真度Kriging模型辅助的一阶可靠性分析方法
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作者 孟德彪 杨恒飞 +2 位作者 杨世源 苏晓燕 朱顺鹏 《机械工程学报》 北大核心 2025年第18期344-365,共22页
结构可靠性分析对于保障工程装备安全可靠运行至关重要。传统的一阶可靠性方法及其改进算法精度受限于极限状态函数的类型与梯度信息,往往无法适用于复杂工程案例。面对日益复杂的工程场景,虽然多保真度模型的建立策略被广泛研究,但在... 结构可靠性分析对于保障工程装备安全可靠运行至关重要。传统的一阶可靠性方法及其改进算法精度受限于极限状态函数的类型与梯度信息,往往无法适用于复杂工程案例。面对日益复杂的工程场景,虽然多保真度模型的建立策略被广泛研究,但在可靠性分析中,其应用潜力尚有待进一步开发。为此,发展一种自适应多保真度Kriging(Multi-fidelity Kriging,MF-Kriging)模型辅助的一阶可靠性分析方法。首先,通过增广拉格朗日函数将一阶可靠性分析问题转化为无约束优化问题,从而使其能够采用启发式优化算法求解。其次,通过融合多个数据源进行自适应MF-Kriging建模,以进一步降低可靠性分析的计算成本。基于该可靠性分析方法,任意自适应MF-Kriging建模策略不论是全局搜索或者是局部搜索均可嵌套使用。另外,考虑到一阶可靠性方法的重要步骤之一是精确定位设计验算点(Most probable point,MPP),提出一种混合MF-Kriging建模策略。通过权衡全局搜索策略和基于迭代MPP邻域的局部搜索策略,平衡可靠性分析的局部精确度以及全局收敛性。最后,利用四个数学算例和三个工程案例对所提出方法进行了应用。结果表明,该可靠性分析方法在精度、效率和鲁棒性方面均具有显著优势。 展开更多
关键词 结构可靠性分析 一阶可靠性方法 多保真度Kriging模型 启发式优化算法
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Neuroinflammation revisited through the microglial lens
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作者 Renato Socodato João B.Relvas 《Neural Regeneration Research》 SCIE CAS 2025年第7期1989-1990,共2页
Neuroimmunology is emerging as a pivotal field,shedding light on the intricate dialogues between the central nervous system(CNS)and the immune system.This exploration is particularly significant in understanding micro... Neuroimmunology is emerging as a pivotal field,shedding light on the intricate dialogues between the central nervous system(CNS)and the immune system.This exploration is particularly significant in understanding microglia,the CNS’s innate immune cells,beyond the conventional conflation of“neuroinflammation”and“microglial activation.”This conflation has clouded the true complexity of these processes,potentially stalling scientific progress and the development of new therapies.We challenge the long-standing perspectives that have oversimplified these interactions,advocating for a deeper exploration of the dynamic relationship between neuroinflammation and microglial activation.By dissecting specific molecular pathways,we aim to illuminate their elaborate roles in neuroinflammatory responses,especially in the context of Alzheimer’s disease(AD).Here,neuroinflammation is not merely a passive observer or a direct antagonist but a complex agent in the disease’s progression.This article calls for a significant paradigm shift towards an integrative,multi-omics approach to neuroimmunology.Adopting such a comprehensive framework is crucial for advancing our understanding of neuroinflammatory conditions and paving the way for targeted therapeutic strategies for brain diseases. 展开更多
关键词 INFLAMMATION simplified ACTIVATION
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Controversies in fecal incontinence
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作者 Andreia Albuquerque Satish S C Rao 《World Journal of Gastroenterology》 SCIE CAS 2025年第3期113-119,共7页
Fecal incontinence is a common condition that can significantly impact patients’quality of life.Obstetric anal sphincter injury and anorectal surgeries are common etiologies.Endoanal ultrasound and anorectal manometr... Fecal incontinence is a common condition that can significantly impact patients’quality of life.Obstetric anal sphincter injury and anorectal surgeries are common etiologies.Endoanal ultrasound and anorectal manometry are important diagnostic tools for evaluating patients.There are various treatment options,including diet,lifestyle modifications,drugs,biofeedback therapy,tibial and sacral nerve neuromodulation therapy,and surgery.In this editorial,we will discuss current controversies and novel approaches to fecal incontinence.Screening for asymptomatic anal sphincter defects after obstetric anal sphincter injury and in patients with inflammatory bowel disease is not generally recommended,but may be helpful in selected patients.The Garg incontinence score is a new score that includes the assessment of solid,liquid,flatus,mucous,stress and urge fecal incontinence.Novel tests such as translumbosacral anorectal magnetic stimulation and novel therapies such as translumbosacral neuromodulation therapy are promising diagnostic and treatment options,for both fecal incontinence and neuropathy.Home biofeedback therapy can overcome some limitations of the office-based therapy.Skeletal muscle-derived cell implantation of the external anal sphincter has been further studied as a possible treatment option.Sacral neuromodulation may be useful in scleroderma,congenital fecal incontinence and inflammatory bowel disease but merits further study. 展开更多
关键词 Fecal incontinence Endoanal ultrasound Anal sphincter defects BIOFEEDBACK NEUROPATHY Sacral neuromodulation
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Direct seawater splitting for hydrogen production:Recent advances in materials synthesis and technological innovation
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作者 Yilin Zhao Zhipeng Yu +4 位作者 Aimin Ge Lujia Liu Joaquim Luis Faria Guiyin Xu Meifang Zhu 《Green Energy & Environment》 SCIE EI CAS 2025年第1期11-33,共23页
Direct seawater splitting has emerged as a popular and promising research direction for synthesising clean,green,non-polluting,and sustainable hydrogen energy without depending on high-purity water in the face of the ... Direct seawater splitting has emerged as a popular and promising research direction for synthesising clean,green,non-polluting,and sustainable hydrogen energy without depending on high-purity water in the face of the world’s shortage of fossil energy.However,efficient seawater splitting is hindered by slow kinetics caused by the ultra-low conductivity and the presence of bacteria,microorganisms,and stray ions in seawater.Additionally,producing hydrogen on an industrial scale is challenging due to the high production cost.The present review addresses these challenges from the catalyst point of view,namely,that designing catalysts with high catalytic activity and stability can directly affect the rate and effect of seawater splitting.From the ion transfer perspective,designing membranes can block harmful ions,improving the stability of seawater splitting.From the energy point of view,mixed seawater systems and self-powered systems also provide new and low-energy research systems for seawater splitting.Finally,ideas and directions for further research on direct seawater splitting in the future are pointed out,with the aim of achieving low-cost and high-efficiency hydrogen production. 展开更多
关键词 Seawater splitting CATALYST Membranes Mixed seawater systems Self-powered systems
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Physiology and health assessment,risk balance,and model for endstage liver disease scores:Postoperative outcome of liver transplantation
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作者 Raquel Hohenreuther Andresa ThoméSilveira +4 位作者 Edison Moraes Rodrigues Filho Anderson Garcez Bruna Goularth Lacerda Sabrina Alves Fernandes Claudio Augusto Marroni 《World Journal of Transplantation》 2025年第1期86-94,共9页
BACKGROUND Liver transplantation aims to increase the survival of patients with end-stage liver diseases and improve their quality of life.The number of organs available for transplantation is lower than the demand.To... BACKGROUND Liver transplantation aims to increase the survival of patients with end-stage liver diseases and improve their quality of life.The number of organs available for transplantation is lower than the demand.To provide fair organ distribution,predictive mortality scores have been developed.AIM To compare the Acute Physiology and Chronic Health Evaluation IV(APACHE IV),balance of risk(BAR),and model for end-stage liver disease(MELD)scores as predictors of mortality.METHODS Retrospective cohort study,which included 283 adult patients in the postoperative period of deceased donor liver transplantation from 2014 to 2018.RESULTS The transplant recipients were mainly male,with a mean age of 58.1 years.Donors were mostly male,with a mean age of 41.6 years.The median cold ischemia time was 3.1 hours,and the median intensive care unit stay was 5 days.For APACHE IV,a mean of 59.6 was found,BAR 10.7,and MELD 24.2.The 28-day mortality rate was 9.5%,and at 90 days,it was 3.5%.The 28-day mortality prediction for APACHE IV was very good[area under the curve(AUC):0.85,P<0.001,95%CI:0.76-0.94],P<0.001,BAR(AUC:0.70,P<0.001,95%CI:0.58–0.81),and MELD(AUC:0.66,P<0.006,95%CI:0.55-0.78),P<0.008.At 90 days,the data for APACHE IV were very good(AUC:0.80,P<0.001,95%CI:0.71–0.90)and moderate for BAR and MELD,respectively,(AUC:0.66,P<0.004,95%CI:0.55–0.77),(AUC:0.62,P<0.026,95%CI:0.51–0.72).All showed good discrimination between deaths and survivors.As for the best value for liver transplantation,it was significant only for APACHE IV(P<0.001).CONCLUSION The APACHE IV assessment score was more accurate than BAR and MELD in predicting mortality in deceased donor liver transplant recipients. 展开更多
关键词 Liver transplantation Acute physiology and chronic health evaluation IV Balance of risk Model for end-stage liver disease MORTALITY Intensive care unit
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Acetabular Component Positioning and Risk of Dislocation in Hip Arthroplasty: Is Lewinnek’s Safe Zone Truly Safe?
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作者 Oliver Damiani Meyer Luis Henrique Zambra Wink +3 位作者 Walter Brandt Iserhard Carlos Roberto Schwartsmann Anthony Kerbes Yépez Leandro de Freitas Spinelli 《Open Journal of Orthopedics》 2025年第2期47-53,共7页
Objective: The present research aims to determine if adherence to the Lewinnek safe zone, when exclusively considered, constitutes a pivotal element for ensuring stability in the context of total hip arthroplasty. Thi... Objective: The present research aims to determine if adherence to the Lewinnek safe zone, when exclusively considered, constitutes a pivotal element for ensuring stability in the context of total hip arthroplasty. This is done by examining the acetabular placement in instances of hip dislocation after total hip arthroplasty (THA). Methodology: The authors searched 2653 patient records from 2015 to 2022 looking for patients who had total hip arthroplasty at our facility. For the analysis, 23 patients were culled from 64 individuals who exhibited post-THA dislocations, employing a stringent exclusion criterion, and the resultant acetabular angulation and anteversion were quantified utilizing PEEKMED software (Peek Health S.A., Portugal) upon radiographic evidence. Results: Within the operational timeframe, from the cohort of 2653 subjects, 64 presented with at least a singular incident of displacement. Post-exclusion criterion enforcement, 23 patients were eligible for inclusion. Of these, 10 patients conformed to the safe zone demarcated by Lewinnek for both inclination and anteversion angles, while 13 exhibited deviations from the prescribed anteversion and/or inclination benchmarks. Conclusion: Analysis of the 23 patients reveals that 13 did not confirm to be in the safe zone parameters for anteversion and/or inclination, whereas 10 were within the safe zone as per Lewinnek’s guidelines. This investigative review, corroborated by extant literature, suggests that the isolated consideration of the Lewinnek safe zone does not suffice as a solitary protective factor. It further posits that additional variables are equally critical as acetabular positioning and mandate individual assessment. 展开更多
关键词 Acetabular Component Positioning DISLOCATION Hip Arthroplasty Lewinnek’s Safe Zone
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The Hidden Intruder: A Closer Look at a Leiomyoma in the Vaginal Wall
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作者 Marina Lucca Santos Tamires Mateus Gomes +3 位作者 Amanda Sica Tortelli Luís Fernando de Cesaro Castro Igor Alexander Paz Augustin Fernanda Grosbelli 《Case Reports in Clinical Medicine》 2025年第2期92-97,共6页
This is a case report of a rare myoma of the anterior vaginal wall that mimicked a paraurethral diverticulum in a postmenopausal woman. Surgical treatment of the lesion was performed via a transvaginal approach withou... This is a case report of a rare myoma of the anterior vaginal wall that mimicked a paraurethral diverticulum in a postmenopausal woman. Surgical treatment of the lesion was performed via a transvaginal approach without complications, and the material was sent for anatomopathological examination, which confirmed the diagnosis of leiomyoma. Vaginal leiomyomas are a rare lineage of tumors at this gynecological site, with just over 300 reports worldwide. Symptoms can range from totally asymptomatic to genitourinary complaints, such as urinary incontinence to dyspareunia. The diagnosis is based on a physical examination and preoperative imaging tests (MRI, transvaginal ultrasound, cystoscopy, computed tomography), but the definitive diagnosis is histopathological analysis of the specimen. The treatment of choice is surgery with complete excision of the lesion, and in 90% of cases, the transvaginal approach is chosen. 展开更多
关键词 LEIOMYOMA FIBROID VAGINAL Paraurethral Case Report
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