检索结果-南通市图书馆

Venopulmonary ECMO Improved Hypoxemia and Supported the Right Ventricle in a Patient with Decompensated Eisenmenger Syndrome

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Cardiovascular Surgery 2024年第1期14卷 7-19页

作者： Daniel Manzur-Sandoval Gian Manuel Jiménez-Rodríguez Edgar García-Cruz Ramón Espinosa-Soto Erika Yamali Ramirez-Marcano Yessenia Máyory Téllez-López José Luis Elizalde-Silva gustavo rojas-velasco Cardiovascular Critical Care Unit Ignacio Ch&#225vez National Institute of Cardiology Mexico City Mexico Adult Congenital Heart Disease Unit Ignacio Ch&#225vez National Institute of Cardiology Mexico City Mexico Cardiology Department Ignacio Ch&#225vez National Institute of Cardiology Mexico City Mexico

Mechanical circulatory and/or respiratory assistance with extracorporeal membrane oxygenation (ECMO) has become a standard of care for patients with circulatory (venoarterial) and/or respiratory (venovenous) failure refractory to standard therapies. Adult patients with congenital heart disease are an increasingly recognized and growing population and include various groups, such as undiagnosed cases in childhood and palliated and/or corrected cases, which require subsequent care because of residual lesions, cardiac arrest/insufficiency, and arrhythmias, among other conditions. In addition, these patients are prone to developing pathologies that are typical of adulthood with a generally increased risk of morbidity and mortality because of their low reserves and organic damage associated with the underlying heart disease, which makes them candidates for ECMO. These patients represent an additional challenge in this therapy because malformations and the presence of a shunt can generally affect the usual cannulation methods and hemodynamic and oximetry monitoring. Thus, the configuration decision must be made on a case-by-case basis. Here, we present a cannulation method, venopulmonary artery ECMO, which provides hemodynamic and respiratory support, and may be ideal for patients with shunts and/or right ventricular dysfunction. To our knowledge, this is the first report of this configuration in patients with congenital heart diseases.

关键词： Eisenmenger Syndrome Venopulmonary Artery ECMO Refractory Hypoxemia Right Ventricular Dysfunction

Comprehensive Left Ventricular Mechanics Analysis by Speckle Tracking Echocardiography in COVID-19

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Cardiovascular Diseases 2021年第2期11卷 113-125页

作者： Francisco J. González-Ruiz Emmanuel A. Lazcano-Díaz Zuilma Y. Vásquez-Ortiz Fernanda Bernal-Ceballos Rodrigo Gopar-Nieto Consuelo Orihuela-Sandoval José P. Hernández-Reyes Edgar García-Cruz Eduardo Bucio-Reta Ángel Ramos-Enríquez Luis A. Cota-Apodaca Luis Efren-Santos Blanca Estela Broca-García Daniel Manzur-Sandoval Efrén Melano-Carranza Fernandez de la Reguera Guillermo gustavo rojas-velasco Francisco Baranda-Tovar Department of Cardiovascular Critical Care National Institute of Cardiology “Dr. Ignacio Chávez” México City México Department of Echocardiography National Institute of Medical Science and Nutrition “Dr. Salvador Zubirán” México City México PhD Program National University of Mexico (UNAM) México City México Cardiovascular Diseases Department National Institute of Cardiology “Dr. Ignacio Chávez” México City México

Background: Cardiac involvement and the consequences of inflammation induced by SARS-CoV2 infection could have catastrophic long-term consequences. Left ventricular mechanics could identify a specific pattern of myocardial fiber damage in patients infected with COVID-19. To our knowledge there are no publications referring to the global description of ventricular mechanics in patients with COVID-19. Objective: To describe left ventricular mechanics in hospitalized patients with COVID-19. Methods: In this cross-sectional study, we included 40 hospitalized patients with confirmed diagnostic of COVID-19, from April 11, 2020, to September 6, 2020. Demographic and laboratory data, clinical and echocardiographic characteristics were collected, as well as events during hospitalization. Left ventricular deformation was analyzed and reported. Results: Subclinical dysfunction was observed in 82.5% (left ventricular longitudinal strain [LVGLS] -17.05% and global circumferential strain [GCS] -18.6%) of the patients, likewise, the mean twist and apical rotation were preserved, and even increased as part of the compensating mechanism to maintain the ejection fraction. Conclusion: In patients hospitalized with COVID-19, despite having a normal left ventricular ejection fraction, subclinical myocardial damage was found, manifested by a decrease in Global Longitudinal Strain (GLS) and Global Circumferential Strain (GCS). This behavior is similar to that of cardiomyopathies in the early stage of the disease, and given the pathophysiological mechanisms involved in the disease, its long-term consequences should be monitored and evaluated.

关键词： COVID-19 Speckle Tracking Echocardiography Myocarditis Cardiomyopa-thy Cardiac Mechanics Strain Myocardial Damage Deformation Imaging Myocardial Strain

Physicochemical properties of Li_(3)Ba_(2)La_(3)(MoO_(4))_(8):Eu,Tb red-emitting phosphor for solid state white lamps

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Rare Earths 2023年第9期41卷 1279-1287,I0001页

作者： Kora Lu rojas Baldivia gustavo A.Hirata Center for Scientific Research and Higher Education of Ensenada Ensenada Baja California 22860Mexico Center for Nanoscience and Nanotechnology National Autonomous University of Mexico EnsenadaBaja Califomia 22860Mex

In this work,combustion synthesis was used for the first time to fabricate a phosphor material with red emission for applications in solid-state white-light *** synthesized a material with emission wavelength at λ_(em)=617 nm,excited under long UV-blue wavelength based on Eu^(3+),Tb^(3+)-activated molybdates Li_(3)Ba_(2)(La_(1-x-y)Eu_(x)Tb_(y))_(3)(MoO_(4))_(8) with 0 ≤ x ≤1 and 0 ≤ y ≤ 1.A series of powder samples were produced by the combustion method and post-annealed at 800℃ in *** crystalline phase formation was investigated by X-ray diffraction,which reveals the monoclinic C2/c(15) space *** is observed that crystalline structure and morphology are preserved when the host lattice is doped with Eu^(3+) or Tb^(3+) single ions and co-doped with both ions at different doping concentrations.A detailed characterization by scanning electron microscopy(SEM) and transmission electron microscopy(TEM)shows a similar morphology in all samples:rather large(1-7 μm) agglomerate particles with irregular shapes and surrounded by smaller nanoparticles of 50 nm in ***-visible absorption spectra confirm the presence of Eu^(3+) and Tb^(3+) *** luminescent properties of the obtained phosphors were studied in *** measurements indicate that the best emission intensity is for Eu^(3+):Tb^(3+)doping ratios of 80:0,90:0 and 20:*** the other hand,samples with 80:0,60:40,and 20:80 doping ratios show the highest intensity in a detailed photoluminescence analysis and they exhibit the highest quantum yield values.A complete and efficient energy transfer from the sensitizer Tb^(3+) to the activator Eu^(3+) is observed in all co-doped phosphors post-annealed at 800℃ for 4 ***,the Li_(3)Ba_(2)La_(3)(MaO_(4))_(8):Eu^(3+),Tb^(3+) materials fabricated by combustion synthesis are excellent phosphors for being applied as red-emitting component in solid-state white-light lamps due to an improved color rendering index(CRI) that can be obtained under lo

关键词： Molybdate Europium Terbium Luminescence Phosphor-converted LED Rare earths

Venopulmonary ECMO Improved Hypoxemia and Supported the Right Ventricle in a Patient with Decompensated Eisenmenger Syndrome

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of Nutrimental Stress on the Pigment Content of the Heliophytic Poinsettia （Euphorbia Pulcherrima cv. Valenciana）

World Journal of Cardiovascular Surgery（心血管外科国际期刊） 2024年第1期

来源：博看期刊评论

在线全文

博看期刊

学校读者我要写书评

暂无评论

Journal of Agricultural Science and Technology(A) 2012年第6期2卷 833-839页

作者： Yolanda Leticia Femandez-Pavia Maria Teresa B. Colinas-Leon Rogelio Castro-Brindis Tito rojas Roque gustavo Adolfo Baca-Castillo Departamento de Fitotecnia Instituto de Horticultura Universidad Autonoma Chapingo Texcoco Estado de Mdxico C.P. 56230Mexico Especialidad de Edafologla- Nutrici6n Vegetal Colegio de Postgraduados Campus Montecillo C.P. 56250 Texcoco Estado de Mexico

Nutrimental requirements of heliophytic poinsettias have not yet been determined, this information is essential for developing an adequate technological package to orient producers in its management. The behavior of the plant under nutritional stress needs to be known by the application of a hydroponic system. The objective of the present work was to evaluate the physiological effect of induced deficiencies of five macronutriments （nitrogen, phosphorous, potassium, calcium, and magnesium） and its influence on the pigment production of the poinsettia Euphorbia puleherrima cv. ＂Valenciana＂. The study was made during 2010 at the Research Unit ＂Dr. Ramon Fernandez Gonzalez＂ in Texcoco, State of Mexico. Six treatments were tested during 240 days from transplant in a totally randomized experimental design. Chlorophylls contents were determined at the beginning of the experiment. At the end of the treatment period, the contents of nutrients, chlorophylls, leaf carotenoids and bract anthocyanins were determined. The effects observed as results of the treatments were： reduction in plant height and diameter; the lowest content of total chlorophylls was observed in the absence of nitrogen, the largest reduction being of chlorophyll a and carotenoids; a low content of anthocyanins was observed to be associated with low nitrogen and calcium; a high correlation was found between nitrogen supplementation and measured non-destructively with a SPAD 502 Minolta unit values measured intensity of green color of leaves.

关键词： Poinsettia pigments nutriments hydroponics "Valenciana"

Fulminant Hepatitis Associated with Chronic Consumption of 3,4-Methylenedioxy-Methamphetamine;Case Report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Gastroenterology 2024年第5期14卷 161-166页

作者： Ulises Solis Gomez gustavo Adolfo Hernández Valdez Juan Antonio Contreras Escamilla Ivan Alejandro Medina Jimenez Jorge Morales rojas Jocelyn Nataly Quintero Melendez Marco Antonio González Villar Department of Internal Medicine ISSSTE APP General Hospital of Tepic Tepic Nayarit Mexico

The amphetamine derivative 3,4-methylenedioxymethamphetamine (MDMA), also called ecstasy, is a neurotoxin widely consumed among young people that has increased in recent years because it is a recreational drug, of which immediate effects are known such as a greater sensation of well-being, extroversion, increased sensory perception. However, its long-term effects have been described very little in the medical literature, including damage to the heart, central nervous system, kidney, etc. One of its little-known effects is hepatotoxicity, of which few cases are known associated with fulminant hepatitis, which is a rapidly deteriorating condition that is generally associated with a syndrome of multiple organ dysfunction and death. Therefore, it is very important to know this type of damage in the short and long term. The following case is of a 39-year-old man who came to our service due to jaundice syndrome and the only history of MDMA consumption, who as the days went by met the criteria for fulminant liver failure, with damage to multiple organs (organ dysfunction syndrome).

关键词： Fulminant Hepatitis Acute Liver Failure Methamphetamine Severe Acute Liver Failure in a User of Drugs of Abuse Hepatology

Uremic Bleeding in 2 Patients with Dieulafoy’s Lesion: Case Report and Literature Review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Gastroenterology 2024年第5期14卷 167-173页

作者： gustavo Adolfo Hernández Valdez Diana Estefanía Ibarra García Juan Antonio Contreras Escamilla Janette Alejandra Gamiño Gutierrez Francisco Manuel Tonatiuh Carrillo Beltran Ulises Solis Gomez Jocelyn Nataly Quintero Meléndez Ivan Alejandro Medina Jimenez Marco Antonio González Villar Jorge rojas Morales Department of Internal Medicine ISSSTE APP General Hospital of Tepic Tepic Nayarit Mexico Hospital Civil de Guadalajara Fray Antonio Alcalde Guadalajara Jalisco M&#233xico

Dieulafoy’s lesions are rare vascular malformations of the gastrointestinal tract. A Dieulafoy’s lesion is an aberrant vessel that does not reduce in caliber when it extends from the submucosa to the mucosa. Damage to this artery can cause severe and intermittent arterial bleeding from small vascular stumps that are difficult to visualize. Furthermore, these catastrophic bleeding episodes frequently result in hemodynamic instability and the need for transfusion of multiple blood products. Recently, uremic syndrome has been identified as a risk factor for gastric mucosal lesions. We present two clinical cases of acute digestive bleeding due to Dielafoy lesion with chronic kidney disease as the main cause, where two different therapies were performed endoscopically. We concluded with the results of our patients that the best therapy was the application of the hemostatic hemoclip on the injury vs the injection with adrenaline on the wound site. Uremia is identified as a risk factor for upper gastrointestinal bleeding in patients with pre-existing Dieulafoy’s lesion, as well as a higher incidence of new bleeding.

关键词： Dieulafoy’s Lesion Gastrointestinal Bleeding Endoscopy Endoscopy Hemostatic Clips Kidney Disease Adrenaline Thermal Coagulation Dieulafoy

Radical Vaginal Hysterectomy and Trachelectomy in Early-Stage Cervical Cancer

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Obstetrics and Gynecology 2014年第8期4卷 491-496页

作者： Erasmo Bravo Catalina Alonso Montemurro Sergio rojas Sepulveda Jaime Cartagena Bustamante Hector Pinto Oncologic Gynecology Unit Gustavo Fricke HospitalViña del MarChile Oncologic Gynecology Unit Van Buren HospitalValparaísoChile Department of Gynecology and Obstetrics University of ValparaísoValparaísoChile

Objective: To communicate a minimally invasive technique for surgical handling of early-stage cervical cancer and its results. Methods: 110 patients with cervical cancer in stages IA2 and IB1, all of them operated in a period of 5 years in both hospitals, are presented. Laparoscopic systemic pelvic lymphadenectomy with radical vaginal hysterectomy or radical vaginal trachelectomy was performed to patients, with the exception of those patients who had compromised nodes detected in contemporary biopsy. Results: Between April 2008 and May 2013, 110 patients were submitted to this technique. 15 patients had their surgery aborted: 13 presented positive nodes for carcinoma in contemporary biopsy and 2 had extensive cervical compromise when performing radical vaginal hysterectomy or trachelectomy. Analysis of the remaining 95 cases shows an average age of 43.9 years (26 - 61), all of them had given birth before, 23 (21%) of them through C-section. BMI averaged 30.5 and 31 (28.2%) had cone surgery performed previously. Average duration of surgery was of 220 minutes. Postoperative hospitalization averaged 3.1 days. Bleeding volume was estimated at 125 cc and one patient required blood transfusion. En 25 patients’ uterine annexes were kept and all of them were suspended by means of laparoscopy. On average, 25.4 pelvic nodes were obtained. Complications 13.6% with eight patients suffered bladder injury, two had rectovaginal fistula, 3 patients requires surgical repair of ureteral obstruction, two patients present thromboembolic disease. The disease-free and overall survivals are consistent with reports in the literature. Conclusion: We believe that handling patients with this technique is possible and has the advantages of vaginal and laparoscopic surgery with minimal complications.

关键词： Radical Vaginal Hysterectomy Radical Vaginal Trachelectomy Early-Stage Cervical Cancer

Meningoencephalitis due to Listeria monocytogenes in a Young Immunocompetent Patient: Case Report with Literature Review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Infectious Diseases 2024年第1期14卷 213-219页

作者： Janette Alejandra Gamiño Gutierrez gustavo Adolfo Hernández Valdez Arleth Anahí Montaño Gómez Jorge Morales rojas Graciela Gaddy Robles Martinez Anahi Herrera Ruelas Alin Kaori Ferreyra Gudiño Jocelin Celeste Jurado Cardona Jimena Jexabeth Ibáñez Núñez Anahí Fierros Ramos Departmento de Neurocirugia Hospital Civil de Guadalajara Fray Antonio Alcalde Guadalajara México Departamento de Medicina Interna ISSSTE Tepic General Hospital APP Tepic México

Meningoencephalitis secondary to Listeria monocytogenes (L. monocytogenes) mainly affects newborns, the elderly and immunocompromised people;there are extremely rare cases in which said infection occurs in immunocompetent individuals. We present the case of a young adult patient without immunocompromise, who developed meningoencephalitis due to L. monocytogenes;This case is exceptional, since it occurred in an individual outside the classic age group, in addition to not having risk factors, which is why it should be considered an atypical causal agent.

关键词： Meningitis Encephalitis Rhombencephalitis Listeria monocytogenes Immunocompetent