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Search Results: 1 - 10 of 200782 matches for " Concha P "
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Casos clínicos: ecocardiografía transesofágica y monitorización hemodinámica en cirugía no cardiaca
Mertz K,Verónica; Concha P,Mario;
Revista médica de Chile , 2011, DOI: 10.4067/S0034-98872011000300011
Abstract: transesophageal echocardiography can assess ventricular filling ana contraction ana detect motility disturbances secondary to ischemia. in non-cardiac surgery it can be extremely helpful to monitor complexpatients. we report a 69-year-old mole subjected to a hepatic lobectomy, a 59-year-old mole with hepatorenal syndrome, a 52-year-old femóle subjected to a gastric bypass, and a 54-year-old mole subjected to a thyroidectomy. in these four cases, left ventricular motility and preload were evaluated with transesophageal echocardiography, and itwas ofgreat aid in decision-making during anesthesia.
Riesgo perioperatorio en pacientes con cirrosis hepática
CONCHA P,MARIO; MERTZ K,VERóNICA;
Revista médica de Chile , 2010, DOI: 10.4067/S0034-98872010000900013
Abstract: ten percent of cirrhotic patients with severely compromised liver function will require a surgical procedure. this article reviews the surgical risk associated with liver damage and surgery. the most important prognostic factor is the degree of functional impairment of the liver. it is evaluated using the child-pugh score, which has limitations that have been partially overcome by the model for end stage liver disease (meld) score. cardiac surgery has the highest risk, while extra-thoracic and extra-abdominal procedures have the lowest risk. the mortality for abdominal surgery fluctuates between 11 and 76%. biliary surgery is associated with frequent complications and mortality, which seem to decrease when the procedures are laparoscopic. there are few series that evaluate risk in child c patients. in liver resective surgery, liver function impairment and magnitude of the excision determine the risk. a high serum creatinine, cardiac failure and emergency surgery are independent risk factors. although meld score is useful to predict surgical risk, decision-making must be based on an individualized evaluation of each patient and careful planning of surgical procedures.
Casos clínicos: ecocardiografía transesofágica y monitorización hemodinámica en cirugía no cardiaca Trans-esophageal echocardiography in non-cardiac surgery: Report of four illustrating cases
Verónica Mertz K,Mario Concha P
Revista médica de Chile , 2011,
Abstract: Transesophageal echocardiography can assess ventricular filling ana contraction ana detect motility disturbances secondary to ischemia. In non-cardiac surgery it can be extremely helpful to monitor complexpatients. We report a 69-year-old mole subjected to a hepatic lobectomy, a 59-year-old mole with hepatorenal syndrome, a 52-year-old femóle subjected to a gastric bypass, and a 54-year-old mole subjected to a thyroidectomy. In these four cases, left ventricular motility and preload were evaluated with transesophageal echocardiography, and itwas ofgreat aid in decision-making during anesthesia.
Riesgo perioperatorio en pacientes con cirrosis hepática Perioperative risk among patients with cirrhosis
MARIO CONCHA P,VERóNICA MERTZ K
Revista médica de Chile , 2010,
Abstract: Ten percent of cirrhotic patients with severely compromised liver function will require a surgical procedure. This article reviews the surgical risk associated with liver damage and surgery. The most important prognostic factor is the degree of functional impairment of the liver. It is evaluated using the Child-Pugh score, which has limitations that have been partially overcome by the Model for End Stage Liver Disease (MELD) score. Cardiac surgery has the highest risk, while extra-thoracic and extra-abdominal procedures have the lowest risk. The mortality for abdominal surgery fluctuates between 11 and 76%. Biliary surgery is associated with frequent complications and mortality, which seem to decrease when the procedures are laparoscopic. There are few series that evaluate risk in Child C patients. In liver resective surgery, liver function impairment and magnitude of the excision determine the risk. A high serum creatinine, cardiac failure and emergency surgery are independent risk factors. Although MELD score is useful to predict surgical risk, decision-making must be based on an individualized evaluation of each patient and careful planning of surgical procedures.
Maxwell Superalgebras and Abelian Semigroup Expansion
P. K. Concha,E. K. Rodríguez
Physics , 2014, DOI: 10.1016/j.nuclphysb.2014.07.022
Abstract: The Abelian semigroup expansion is a powerful and simple method to derive new Lie algebras from a given one. Recently it was shown that the $S$-expansion of $\mathfrak{so}\left( 3,2\right) $ leads us to the Maxwell algebra $\mathcal{M}$. In this paper we extend this result to superalgebras, by proving that different choices of abelian semigroups $S$ lead to interesting $D=4$ Maxwell Superalgebras. In particular, the minimal Maxwell superalgebra $s\mathcal{M}$ and the $N$-extended Maxwell superalgebra $s\mathcal{M}^{\left( N\right) }$ recently found by the Maurer Cartan expansion procedure, are derived alternatively as an $S$-expansion of $\mathfrak{osp}\left( 4|N\right) $. Moreover we show that new minimal Maxwell superalgebras type $s\mathcal{M}_{m+2}$ and their $N$-extended generalization can be obtained using the $S$-expansion procedure.
Correlación entre la espirometría y la resistencia y reactancia respiratoria medida por oscilometría de impulso en ni?os asmáticos
LINARES P.,MARCELA; CONCHA M.,IDA; METER P.,RODOLFO;
Revista chilena de enfermedades respiratorias , 2002, DOI: 10.4067/S0717-73482002000200003
Abstract: impulse oscillometry (ios) is a technique that measures respiratory resistance (rrs) and reactance (xrs) at several frequencies, through the interpretation of oscillatory impulses overlapping spontaneous breathing. it is a non-invasive, fast and easy to perform technique that requires minimal patient cooperation. three of the most sensitive parameters to evaluate peripheral airways obstruction are resistance and reactance at 5 hertz (rrs5 and xrs5), and resonance frequency (rf). the aim of this study was to evaluate the correlation between spirometry and ios, in asthmatic children. spirometry and ios using a jaeger masterscreen ios equipment, were performed in asthmatic children > 6 years old, during a six month period. only the tests that fulfilled the international criteria of acceptability and reproducibility were used for the study. 98 acceptable tests for both techniques were obtained, in 40 girls and 58 boys of 9.3 y.o. in average (range: 6 to 15 y.o.). fev1, fef 25-75, fef25, fef50 and fef75 were correlated with rrs5, xrs5, and rf. correlation coefficients ranged from r = 0.5 to 0.73 (p < 0.005 in all correlations). the best correlation obtained was between rrs5 and fev1 (r = 0.73) and between rrs5 and fef25. (r = 0.7). in conclusion, we found a good correlation between spirometry and ios in this series of 98 asthmatic children. the best correlations obtained were between rrs5 and fev1 and between rrs5 and fef25.
Correlación entre la espirometría y la resistencia y reactancia respiratoria medida por oscilometría de impulso en ni os asmáticos CORRELATION BETWEEN SPIROMETRY AND RESPIRATORY RESISTANCE AND REACTANCE MEASURED BY IMPULSE OSCILLOMETRY IN ASTHMATIC CHILDREN
MARCELA LINARES P.,IDA CONCHA M.,RODOLFO METER P.
Revista Chilena de Enfermedades Respiratorias , 2002,
Abstract: La oscilometría de impulso (IOS) es una técnica a través de la cual se mide la resistencia (Rrs) y la reactancia respiratoria (Xrs) a varias frecuencias simultaneas, a través de la interpretación de impulsos oscilatorios sobrepuestos a la ventilación corriente. Es un método que se realiza en forma rápida, no invasiva, y requiere una cooperación mínima por parte del paciente. Tres de los índices más sensibles para evaluar obstrucción periférica son la resistencia y la reactancia a 5 hertz (Rrs5 y Xrs5), y la frecuencia de resonancia (FR). El objetivo de este trabajo fue correlacionar distintos índices de la espirometría y la oscilometría de impulso (IOS), en ni os asmáticos. Durante 6 meses, desde diciembre de 1999, se realiza en forma correlativa IOS y espirometría a todo ni o asmático mayor de 6 a os de la Unidad de Respiratorio Infantil del Hospital Padre Hurtado, con un equipo Jaeger Masterscreen IOS. Para el análisis de los resultados sólo fueron aceptadas aquellas curvas que cumplieron con los criterios de aceptabilidad y reproducibilidad determinados internacionalmente. Se obtuvo 98 pruebas aceptables para los dos exámenes en 40 ni as y 58 ni os, con una edad promedio de 9,3 a os (6 a 15 a os). Se correlacionó VEF1, FEF25-75 , FEF25, FEF50, y FEF75 con Xrs5, Rrs5 y FR. Los coeficientes de correlación encontrados oscilaron entre 0,5 y 0,73 (p < 0,001 en todas las correlaciones). Las correlaciones mayores entre Rrs5 y VEF1 (r = 0,73); y entre R5 y FEF25. (r = 0,7). Los índices espirométricos y la IOS tienen una buena correlación en este grupo de ni os asmáticos, la cual es mayor entre Rrs5 y VEF1 y entre Rrs5 y FEF25 Impulse oscillometry (IOS) is a technique that measures respiratory resistance (Rrs) and reactance (Xrs) at several frequencies, through the interpretation of oscillatory impulses overlapping spontaneous breathing. It is a non-invasive, fast and easy to perform technique that requires minimal patient cooperation. Three of the most sensitive parameters to evaluate peripheral airways obstruction are resistance and reactance at 5 Hertz (Rrs5 and Xrs5), and resonance frequency (RF). The aim of this study was to evaluate the correlation between spirometry and IOS, in asthmatic children. Spirometry and IOS using a Jaeger Masterscreen IOS equipment, were performed in asthmatic children > 6 years old, during a six month period. Only the tests that fulfilled the international criteria of acceptability and reproducibility were used for the study. 98 acceptable tests for both techniques were obtained, in 40 girls and 58 boys of 9.3 y.o. in average
Manufacturer-Dealer Relationships. The Influence of Trust and Commitment to Technological Interface Adoption  [PDF]
José R. Concha
Modern Economy (ME) , 2013, DOI: 10.4236/me.2013.49A003
Abstract:

The steep increase in the number and variety of exchange relations, the increased complexity and uncertainty of the business environment cannot be managed without the presence of interpersonal and/or interorganizational trust and relationship commitment. Manufacturer firms have to pay close attention to developing and maintaining relationship commitment and dealers’ trust. The value of such efforts is the most apparent when high levels of competition threaten market shares and the stability of the dealers’ network. This empirical study shows that trust and relationship commitment are important assets for the technological interface adoption and bring significant savings for the manufacturer and dealer.

Creencias y virus papiloma humano
Concha P,Ximena; Urrutia S,Teresa; Riquelme H,Giselle;
Revista chilena de obstetricia y ginecología , 2012, DOI: 10.4067/S0717-75262012000200002
Abstract: background: the infection produced by human papilloma virus (hpv) is a sexually transmitted disease that affects a large percentage of young women around the world. this high incidence of hpv infection is associated with early onset and greater frequency of sexual activity. although hpv infection is widespread in the world, is still an unknown infection, which is associated with cultural factors that favor the development of multiple beliefs that hinder the prevention and early diagnosis. objective: to identify, describe and analyze the major beliefs that limit hpv detection. methods: literature search was carried out in medline, pro-quest, scielo and tripdatabase metasearch, selecting 45 articles for analysis. analysis of the theme: the health education should consider cultural and social cognitive aspects of a given society and culture from which they emerge to address these beliefs with a theoretical model to support it. the beliefs identified in this review correspond to the relationship between hpv infection and cervical cancer where the association is generally recognized, beliefs regarding the risk of hpv infection associated with the level of knowledge, stoicism, denial and fatalism/familism preferably present in women who deny their illness where diagnosis and treatment are postponed for maintaining the family and others.
Calidad de atención programa AUGE cáncer cérvicouterino: diferencias y similitudes entre usuarias y profesionales
Concha P,Miriam Ximena; Urrutia S,María Teresa;
Revista chilena de obstetricia y ginecología , 2011, DOI: 10.4067/S0717-75262011000500003
Abstract: background: cervical cancer (cc) is a ges pathology. since its implementation, evaluation of the program's quality of care have not been reported. objective: determine the perception of the quality of care received and given in the auge program cc of the servicio de salud metropolitano sur oriente. methodology: descriptive cross sectional study with a group of 364 users and 59 professionals from the three levels of care. to assess the quality of care of users and professionals was used the instrument inca-auge was used. results: dimension i: the grade given by users to this program was a 6.3 versus a 5.9 given by professionals. dimension ii: 78% of users perceive a humane treatment, versus a 48% of professionals which perceive that treatment provided is humane. dimension iii: 40% of women consider that the amount of people working in the program is adequate, unlike professionals that only a 15.3% considers it adequate. dimension iv: 93% of the group of women perceives to be educated about their disease and treatment versus 64.4% of professionals considers it. dimension v: 80% of users perceived that the program has adequate materials to provide a good care, versus a 5.1% of professionals who consider them appropriate. conclusion: the evaluation is generally good being professionals more demanding. there have been identified emerging areas for improvement by comparing the perceptions of users and professionals, key figures involved in the evaluation of the quality of care.
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