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Search Results: 1 - 10 of 11237 matches for " Cid Marcos;Schettino "
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Consenso brasileiro de monitoriza??o e suporte hemodinamico - Parte V: suporte hemodinamico
Lobo, Suzana Margareth Ajeje;Rezende, Ederlon;Mendes, Ciro Leite;Rea-Neto, álvaro;David, Cid Marcos;Dias, Fernando Suparregui;Schettino, Guilherme;
Revista Brasileira de Terapia Intensiva , 2006, DOI: 10.1590/S0103-507X2006000200010
Abstract: background and objectives: shock occurs when the circulatory system cannot maintain adequate cellular perfusion. if this condition is not reverted irreversible cellular injury establishes. shock treatment has as its initial priority the fast and vigorous correction of mean arterial pressure and cardiac output to maintain life and avoid or lessen organic dysfunctions. fluid challenge and vasoactive drugs are necessary to warrant an adequate tissue perfusion and maintenance of function of different organs and systems, always guided by cardiovascular monitorization. the recommendations built in this consensus are aimed to guide hemodynamic support needed to maintain adequate tisular perfusion. methods: modified delphi methodology was used to create and quantify the consensus between the participants. amib indicated a coordinator who invited more six experts in the area of monitoring and hemodynamic support to constitute the consensus advisory board. twenty five physician and two nurses selected from different regions of the country completed the expert panel, which reviewed the pertinent bibliography listed at the medline in the period from 1996 to 2004. results: recommendations were made answering 17 questions about hemodynamic support with focus on fluid challenge, red blood cell transfusions, vasoactive drugs and perioperative hemodynamic optimization. conclusions: hemodynamic monitoring by itself does not reduce the mortality of critically ill patients, however, we believe that the correct interpretation of the data obtained by the hemodynamic monitoring and the use of hemodynamic support protocols based on well defined tissue perfusion goals can improve the outcome of these patients.
Consenso brasileiro de monitoriza??o e suporte hemodinamico - Parte IV: monitoriza??o da perfus?o tecidual
Réa-Neto, álvaro;Rezende, Ederlon;Mendes, Ciro Leite;David, Cid Marcos;Dias, Fernando Suparregui;Schettino, Guilherme;Lobo, Suzana Margareth Ajeje;
Revista Brasileira de Terapia Intensiva , 2006, DOI: 10.1590/S0103-507X2006000200009
Abstract: background and objectives: the main cardiovascular function is to maintain the adequate perfusion e oxygen delivery to the cells. physiologically, this is controlled by the cellular metabolic rate. the critically ill patients are in high danger of tissue hipoperfusion and this is directly related to cellular injury and organ dysfunction. therefore, the tissue perfusion monitoring makes part and is indissociated of hemodynamic evaluation of the critically ill patient and is indicated to all this patients. the objective was to define recommendations about clinical utility of different tolls to bedside perfusion monitoring. methods: modified delphi methodology was used to create and quantify the consensus between the participants. amib indicated a coordinator who invited more six experts in the area of monitoring and hemodynamic support to constitute the consensus advisory board. twenty five physician and two nurses selected from different regions of the country completed the expert panel, which reviewed the pertinent bibliography listed at the medline in the period from 1996 to 2004. results: recommendations were done about the utility of clinical monitoring of tissue perfusion, temperature gradient and transcutaneous oxygen monitoring, serum lactate, base excess, svo2 and scvo2, gastric and sublingual capnometry, co2 venous-arterial gradient and orthogonal polarization spectral (ops). conclusions: the homodynamic compensation of a critically ill patient isn?t complete unless the tissue perfusion is corrected. many different methods of monitoring is available and are useful in clinical practice, however, none has accuracy and effectiveness characteristics to be used independently of clinical context.
Consenso brasileiro de monitoriza??o e suporte hemodinamico - parte III: métodos alternativos de monitoriza??o do débito cardíaco e da volemia
Schettino, Guilherme;Ederlon, Rezende;Mendes, Ciro Leite;Réa-Neto, álvaro;David, Cid Marcos;Lobo, Suzana Margareth Ajeje;Barros, Alberto;Silva, Eliézer;Friedman, Gilberto;Amaral, José Luiz Gomes do;Park, Marcelo;Monachini, Maristela;Oliveira, Mirella Cristine de;Assun??o, Murillo Santucci César;Akamine, Nelson;Mello, Patrícia Veiga C;Pereira, Renata Andréa Pietro;Costa Filho, Rubens;Araújo, Sebasti?o;Pinto, Sérgio Félix;Ferreira, Sérgio;Mitushima, Simone Mattoso;Agareno, Sydney;Brilhante, Yuzeth Nóbrega de Assis;
Revista Brasileira de Terapia Intensiva , 2006, DOI: 10.1590/S0103-507X2006000100013
Abstract: background and objectives: cardiac output and preload as absolute data do not offer helpful information about the hemodynamic of critically ill patients. however, monitoring the response of these variables to volume challenge or inotropic drugs is a very useful tool in the critical care setting, particularly for patients with signs of tissue hypoperfusion. although pac remains the " gold standard" to measure cardiac output and preload, new and alternative technologies were developed to evaluate these hemodynamic variables. methods: modified delphi methodology was used to create and quantify the consensus between the participants. amib indicated a coordinator who invited more six experts in the area of monitoring and hemodynamic support to constitute the consensus advisory board. twenty three physician and two nurses selected from different regions of the country completed the expert panel, which reviewed the pertinent bibliography listed at the medline in the period from 1996 to 2004. results: recommendations regarding the use of arterial pulse pressure variation during mechanical ventilation, continuous arterial pulse contour and lithium dilution cardiac output measurements, esophageal doppler waveform, thoracic electrical bioimpedance, echocardiography and partial co2 rebreathing for monitoring cardiac output and preload were created. conclusions: the new and less invasive techniques for the measurement of cardiac output, preload or fluid responsiveness are accurate and may be an alternative to pac in critically ill patients.
Desmame da ventila??o mecanica: promova uma estratégia
Goldwasser, Rosane S.;David, Cid Marcos;
Revista Brasileira de Terapia Intensiva , 2007, DOI: 10.1590/S0103-507X2007000100014
Abstract: background and objectives: weaning patients from mechanical ventilation is still a challenge in intensive care units (icu) and is related to complications and mortality. daily rounds at the bedside, which are part of good care, can identify patients able to undergo to spontaneous breathing trials. the authors suggest one mnemonic technique with the term "estrategia" (strategy) considering some key aspects, as a checklist, which can be applied by any person of the multidisciplinary team, during the bedside rounds, in order to shorten the weaning time. contents: to introduce the word strategy as a mnemonic method based on the studies related to weaning from mechanical ventilation and its applicability as a checklist in any intensive care unit by the multidisciplinary team where each letter reminds some key aspects related to the subject. conclusions: the applicability of a mnemonic mechanism as a checklist for weaning patients from mechanical ventilation easily practiced during the daily round to identify those who are able to undergo to spontaneous breathing trials.
In vitro morphogenesis of Toona ciliata from young leaf rachis using thidiazuron Morfogénesis in vitro de Toona ciliata a partir de raquis de hojas jóvenes con tidiazuron
Daquinta Marcos,Lezcano Yarianne,Cid Mariela
Revista Colombiana de Biotecnología , 2005,
Abstract: Las Meliáceas son de gran importancia en la construcción y fabricación de muebles, entre otras aplicaciones. Toona ciliata es una Meliácea originaria de la región del Himalaya; en Cuba se conoce como cedro del Himalaya. La regeneración natural de esta especie es por semillas e injertos. Los procesos de propagación en la producción de esta especie son limitados. El objetivo de este trabajo fue lograr la formación de callos y la regeneración de plantas en Toona ciliata para la propagación in vitro. Se usaron árboles de dos a tres a os de Toona ciliata. A partir de estas plantas se utilizaron raquis de hojas jóvenes las cuales se desinfestaron con bicloruro de mercurio al 0.25% (w/v) durante 10 minutos, se lavaron con agua destilada estéril y se establecieron en el medio de cultivo MS suplementado con 0-1 mg/L de Tidiazuron. Se obtuvieron callos nodulares con buenas características morfogénicas. Se lograron brotes en callos de seis meses de edad en la oscuridad y la regeneración de plantas en la luz. El enraizamiento de los brotes se obtuvo en el medio de cultivo MS con 1 mg/L AIB. Palabras clave: callo, cedro del Himalaya, Meliácea, reguladores del crecimiento, regeneración de plantas. The Meliacea are of great importance in construction and furniture-making. Toona ciliata is a Meliacea originally from the Himalayan region; it is known as Himalayan Cedar in Cuba. Natural regeneration occurs in this specie by seed diffusion and grafting; such propagation is limited. The object of this paper was to promote callus formation and plant regeneration in Toona ciliata from in vitro propagation. Two to three year old mature trees (Toona ciliata) were used. Rachis were taken from young branches from these plants. They were disinfected in 0.25% (w/v) mercuric chloride solution for 10 min followed by three rinses in autoclaved distilled-water. They were then established in MS supplemented with 0-1 mg/L thidiazuron culture medium. Nodular calluses were obtained having good morphogenic characteristics. Shoots sprouted from six-month-old calluses in the dark and plant regeneration was done in the light. AIB shoots were rooted in MS medium supplement with 1 mg/L IBA. Key words: callus, Himalayan Cedar, Meliacea, growth regulators, plant regeneration. Abbreviations: IBA- indolebutyric acid, thidiazuron-N-1,2,3-thiadiazol-5-yl-N-phenylurea.
Parte II: monitoriza??o hemodinamica básica e cateter de artéria pulmonar
Dias, Fernando Suparregui;Rezende, Ederlon;Mendes, Ciro Leite;Réa-Neto, álvaro;David, Cid Marcos;Schettino, Guilherme;Lobo, Suzana Margareth Ajeje;Barros, Alberto;Silva, Eliézer;Friedman, Gilberto;Amaral, José Luiz Gomes do;Park, Marcelo;Monachini, Maristela;Oliveira, Mirella Cristine de;Assun??o, Murillo Santucci César;Akamine, Nelson;Mello, Patrícia Veiga C;Pereira, Renata Andréa Pietro;Costa Filho, Rubens;Araújo, Sebasti?o;Félix Pinto, Sérgio;Ferreira, Sérgio;Mitushima, Simone Mattoso;Agareno, Sydney;Brilhante, Yuzeth Nóbrega de Assis;
Revista Brasileira de Terapia Intensiva , 2006, DOI: 10.1590/S0103-507X2006000100012
Abstract: background and objectives: monitoring of vital functions is one of the most important tools in the management of critically ill patients. nowadays is possible to detect and analyze a great deal of physiologic data using a lot of invasive and non-invasive methods. the intensivist must be able to select and carry out the most appropriate monitoring technique according to the patient requirements and taking into account the benefit/risk ratio. despite the fast development of non invasive monitoring techniques, invasive hemodynamic monitoring using pulmonary artery catheter still is one of the basic procedures in critical care. the aim was to define recommendations about clinical utility of basic hemodynamic monitoring methods and the use of pulmonary artery catheter. methods: modified delphi methodology was used to create and quantify the consensus between the participants. amib indicated a coordinator who invited more six experts in the area of monitoring and hemodynamic support to constitute the consensus advisory board. twenty-five physicians and nurses selected from different regions of the country completed the expert panel, which reviewed the pertinent bibliography listed at the medline in the period from 1996 to 2004. results: recommendations were made based on 55 questions about the use of central venous pressure, invasive arterial pressure, pulmonary artery catheter and its indications in different settings. conclusions: evaluation of central venous pressure and invasive arterial pressure, besides variables obtained by the pac allow the understanding of cardiovascular physiology that is of great value to the care of critically ill patients. however, the correct use of these tools is fundamental to achieve the benefits due to its use.
Spreading Newtonian Philosophy with Instruments: The Case of Atwood’s Machine  [PDF]
Salvatore Esposito, Edvige Schettino
Advances in Historical Studies (AHS) , 2014, DOI: 10.4236/ahs.2014.31007
Abstract: We study how the paradigm of Newton’s science, based on the organization of scientific knowledge as a series of mathematical laws, was definitively accepted in science courses—in the last decades of the XVIII century, in England as well as in the Continent—by means of the “universal” dynamical machine invented by George Atwood in late 1770s just for this purpose. The spreading of such machine, occurring well before the appearance of Atwood’s treatise where he described the novel machine and the experiments to be performed with it, is a quite interesting historical case, which we consider in some detail. In particular, we focus on the “improvement” introduced by the Italian Giuseppe Saverio Poli and the subsequent “simplifications” of the machine, underlying the ongoing change of perspective after the definitive success of Newtonianism. The case studied here allows recognizing the relevant role played by a properly devised instrument in the acceptance of a new paradigm by nonerudite scholars, in addition to the traditional ways involving erudite scientists, and thus the complementary role of machine philosophy with respect to mathematical, philosophical or even physical reasoning.
Neolasioptera ramicola, a new species of Cecidomyiidae (Diptera) associated with Physalis angulata (Solanaceae)
Maia, Valéria Cid;Zart, Marcelo;Botton, Marcos;
Revista Brasileira de Entomologia , 2009, DOI: 10.1590/S0085-56262009000200001
Abstract: neolasioptera ramicola maia, a new species of cecidomyiidae (diptera) that induces stem galls on physalis angulata (solanaceae) is described and illustrated (larva, pupa, male, female and gall) based on material from bento gon?alves, rio grande do sul, brazil.
Avalia??o do sucesso do desmame da ventila??o mecanica
Freitas, Edna Estelita Costa;David, Cid Marcos Nascimento;
Revista Brasileira de Terapia Intensiva , 2006, DOI: 10.1590/S0103-507X2006000400006
Abstract: background and objectives: the weaning of patients under mechanical ventilation (mv) is one of the critical stages of respiratory assistance in intensive care. there are several criteria for taking patients out of respiratory prothesis. the aim of this work was to assess if there is a group of parameter which can predict the patients who will succeed in weaning from mechanical ventilation. methods: sixty patients were studied in a prospective way within 24 months. all of them had been in mv for, time > 48 hours. the specific mechanical parameters were monitored for the weaning, clinical data, gasometrical values and laboratory results. the patients were divided into both succeeding and unsucceeding groups for comparable analysis. by the roc curve, it was observed the best cut point for the numerical variables evaluated for the success of the weaning. results: in analysis of logistic regression performed to evaluate the simultaneous influence of all the factors: mv < 8 days, apache ii (acute physiologic and chronic health evaluation ii) < 16 and pimax (maximum respiratory pression) > (-) 20 cmh2o were statistically significant to predict the success to weaning, in this order of explainable capacity. conclusions: we could conclude that the indexes evaluated were suitable for the determination of the success in the weaning of those patients in mechanical ventilation. apache ii because of admition constitutes severity indicator and allows awareness from the patient. mv timing, optimizing the treatment in order to accelerate the process of weaning is conducts that aim not only for the weaning success but also interfere both in the evolution and period of hospital admition.
Prote?mica na sepse: estudo piloto
Paiva, Rita Azevedo de;David, Cid Marcos;Domont, Gilberto Barbosa;
Revista Brasileira de Terapia Intensiva , 2010, DOI: 10.1590/S0103-507X2010000400015
Abstract: gene expression is disrupted by sepsis. genetic markers can only reveal a patient's genotype, and they are not affected by environmental biological processes. these processes are expressed by proteins. this study was aimed to advance the insight into the molecular foundations of sepsis. it employed proteomic techniques to identify and analyze differential serum protein expressions taken from a patient throughout the stages of sepsis (sepsis, severe sepsis and septic shock). serum samples were collected at each stage of sepsis and submitted to one-dimensional electrophoresis, on gradient strips of immobilized ph, followed by two-dimensional 12.5% polyacrylamide gel electrophoresis. the gels obtained were stained, scanned and analyzed by the imagemasterplatinum program. proteins that were differentially expressed in the gels were excised, digested with trypsin and identified through mass spectrometry. fourteen differentially expressed proteins were identified throughout the stages of sepsis, as well as a protein that was not expressed in all stages, suggesting the potential existence of a biomarker. the differentially expressed proteins identified were: serum amyloid a, apolipoprotein a-1 (2 isoforms), zinc finger protein 222, human albumin, pro 2619, immunoglobulin kappa light chain vlj region, monoclonal immunoglobulin m cold agglutinin, 7 proteinase inhibitors - alpha-1 antitrypsin. the findings of this pilot study demonstrate the involvement of the complement and coagulation pathways, of the lipid metabolism and of genetic information in sepsis. the vast majority of proteins identified are involved in the immune system and the proteinase inhibitor proteins are predominant.
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