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Search Results: 1 - 10 of 485457 matches for " Andrés Cartín Rojas "
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A Global Public Good: The Linkage between Veterinary Medicine and the Sanitary Management of Food Hygiene  [PDF]
Andrés Cartín Rojas
American Journal of Industrial and Business Management (AJIBM) , 2013, DOI: 10.4236/ajibm.2013.35058
Abstract:

Ensuring food safety is a key and crucial factor for those agro-exporting nations seeking to improve their competitiveness, opening new options for global markets and positioning their products at a better price. A number of international guidelines serve a reference framework for defining national public policies aimed to provide safe food to the population. Veterinary services act as guarantors in this process along all the manufacture and value chain. The public and private veterinary services are nurtured and amalgamate together to ensure the attainment of common goals; strengthen and foment a robust and efficient alimentary legislation by using the World Animal Health Organization’s normative as a standard reference. In this conceptual paper, an appraisal about the interrelationship and the interconnection between veterinary professionals and the sanitary management of food hygiene is widely developed by reviewing relevant literature, and discussing current trends. The author adopts an inductive approach, designed to generate understanding and propositions about this relevant topic.

Morbimortalidad de la ruptura del aneurisma de aorta abdominal en el área geográfica del Hospital de Puerto Montt
Rojas N,Reginald; Rojas G,Andrés;
Revista chilena de cirugía , 2006, DOI: 10.4067/S0718-40262006000200011
Abstract: background: the rupture of an aortic aneurism is associated with a high mortality. in isolated and rural areas, where patients must be transferred to a base hospital for treatment, this condition may become a real health risk. aim: to assess the management and complications of ruptured abdominal aortic aneurisms (raaa) in an isolated southern area in chile. material and methods: retrospective review of clinical records of 20 patients with raaa admitted to a base hospital in puerto montt chile. results: six patients (aged 56 to 78 years, five males) were admitted with a free rupture to the abdominal cavity. three were operated, two declined surgery and one was deemed not eligible for surgical treatment. only two patients were previously aware that they had an aneurism. the mean diameter of the lesion was 6.5 cm. three smoked, two were hypertensive, two had coronary artery disease and two were diabetic. they had to be transferred from hospitals 13 km distant from the base hospital. the mean lapse required for derivation was 1.5 days and they were operated at a mean of 10 hours alter admission. all patients died. in 14 patients (aged 36 to 87 years, 10 males), the rupture formed a retroperitoneal hematoma and all were operated. two were previously aware that they had an aneurism. six smoked and five were hypertensive. three patients did not have any concomitant disease. ten were transferred from hospitals distant at a mean of 202 km and required a mean of 1.5 days to reach the base hospital. they were operated 10 hours after admission. three patients, that were admitted with hypotension and in coma, died. conclusions: patients with ruptured aneurisms causing retroperitoneal hematomas had a better survival than those that had a free rupture to the peritoneal cavity
Morbimortalidad de la ruptura del aneurisma de aorta abdominal en el área geográfica del Hospital de Puerto Montt Complications and mortality of ruptures abdominal aortic aneurisms in a rural setting
Reginald Rojas N,Andrés Rojas G
Revista Chilena de Cirugía , 2006,
Abstract: El aneurisma aórtico abdominal roto (AAAr), es una condición con alta mortalidad. El Servicio de Salud Llanquihue, Chiloé y Palena, atiende una población de 523.536 habitantes, en un área geográfica difícil, con zonas de aislamiento y dificultad de transporte y dónde todas las urgencias vasculares son derivadas al Hospital de Puerto Montt. El objetivo, fue conocer el manejo y morbimortalidad de ésta patología, en el área geográfica asignada. Material y Método: la información fue obtenida de un registro vascular local. Se revisan retrospectivamente los datos de 20 pacientes con AAAr ingresados al Hospital de Puerto Montt entre el 11/9/1995 y el 2/7/2005, derivados desde hospitales periféricos con distancias variables entre 18 y 250 km, agregándose dos desde la XI Región. Se agrupan en aquellos con ruptura libre a peritoneo (6) y hematoma retroperitoneal contenido (14). Resultados: Seis pacientes ingresaron con AAAr y ruptura libre intraperitoneal; 3 se operaron, 2 rechazaron cirugía y 1 se consideró fuera de tratamiento quirúrgico. Solo 2 conocían la existencia previa del aneurisma. El diámetro promedio fue de 6,5 cm (6-8,1cm). La edad promedio fue de 73 a os (56-87 a os). Cinco de sexo masculino y uno femenino. Los factores de riesgo más comunes fueron: tabaquismo (3), hipertensión arterial (2), cardiopatía coronaria (2) y diabetes mellitus (2). La distancia de derivación promedio fue de 13 km, la mayoría de Puerto Montt (4), con latencias en la derivación de 1,5 días, y de cirugía de 10,5 horas una vez ingresado. La mortalidad fue del 100%. Los 14 pacientes ingresados con AAAr y hematoma retroperitoneal contenido fueron intervenidos. Dos, con existencia previa conocida del aneurisma. El diámetro promedio fue de 7,5 cm (5-10 cm), y la edad promedio fue de 67 a os (36-87 a os). Diez de sexo masculino y cuatro femenino. Los factores de riesgo más comunes fueron: tabaquismo (6), hipertensión arterial (5) y limitación crónica del flujo aéreo. Ningún paciente diabético y tres pacientes sin ninguna comorbilidad conocida. La mayoría (11) fueron derivados desde centros alejados, con distancia promedio de 202 km y latencias en la derivación de 2 días, y de cirugía una vez ingresados de 10,5 hrs. La mortalidad fue del 21%, correspondiendo a 3 pacientes con hipotensión y compromiso de conciencia (obnubilados y coma) al ingreso. Conclusiones: Los pacientes con AAAr y hematoma retroperitoneal, tuvieron menor mortalidad, que los pacientes con ruptura libre intraperitoneal no afectando la sobrevida la distancia de derivación, ni la demora en el traslado y revasculariza
Physiological and Molecular Characterization of Malassezia pachydermatis Reveals No Differences between Canines and Their Owners  [PDF]
Juan Camilo Galvis Marín, Fernando Borda Rojas, Andrés Julián Gutiérrez Escobar
Open Journal of Veterinary Medicine (OJVM) , 2018, DOI: 10.4236/ojvm.2018.87010
Abstract: Introduction: The genus Malassezia comprises 17 species of commensal and pathogenic yeasts of homeotherms animal skin. The most common species are M. furfur, M. globosa, and M. sympodialis in humans and M. pachydermatis in animals. However, some publications have reported potentially serious human infections by M. pachydermatis in individuals with risk factors and the isolation of human species from domestic animals. Given the scarcity of information about their capacity for transmission between hosts and zoonotic potential, the aim of the present study was to physiologically and molecularly characterize Malassezia spp. isolates obtained from canines and their human owners. Materials and Methods: An experimental study was conducted at the Veterinary Clinic of Universidad de Ciencias Aplicadas y Ambientales of Bogotá (Colombia) from July 2015 to December 2016. Phenotypic identification and molecular characterization via the amplification of the 5.8S rDNA- ITS2 and 26S rDNA gene regions, nucleic acid sequencing, and phylogenetic analyses were performed on isolates originating from canines with otitis externa and from the skin of healthy owners compatible with Malassezia spp. Results: Eighty samples were cultured, of which 32 (40%) were suggestive of Malassezia spp. A total of 29 out of 46 (63%) isolates in canines and 3 out of 34 (9%) isolates in humans corresponded entirely with M. pachydermatis. Isolates from the canines and their owners presented similar behavior in biochemical and phospholipase activity tests, 100% molecular sequence identities, and close proximity in the phylogenetic trees. Conclusion: The isolation of M. pachydermatis from humans and their dogs with identity based on biochemical, physiological, molecular, and phylogenetic perspectives indicate the ability of this species to adapt to new hosts and its potential for zoonotic transmission. These findings contribute to knowledge of the ecology of this important fungus in human and veterinary medicine.
Snakes of an urban-rural landscape in the central Andes of Colombia: species composition, distribution, and natural history
Julián Andrés Rojas-Morales
Phyllomedusa : Journal of Herpetology , 2012,
Abstract: From 2005 to 2011, I studied the composition, distribution and natural history of an Andean urban-rural snake assemblage at the Cordillera Central of Colombia, based on three data sources: (1) examination of specimens in the MHN-UC [Museo de Historia Natural, Universidad de Caldas], (2) incidental encounters by author, and (3) collection of data by other researchers. Additionally, I provide natural history notes for the species involved. A total of 14 species, including two subspecies of snakes, belonging to 12 genera and four families, have been found in the studied area (municipality of Manizales, Caldas). Taking into account this total, 10 had atleast one record in the urban area, 13 in the rural area and 14 in forested areas. Only Liophis epinephelus bimaculatus was found exclusively in forest environment. Three species (21.4%) are apparently endemic to the region, six species (42.8%) correspond to afauna representative of the Tropical–Andean range of South America, four species (28.5%) are distributed from Central America to the tropical Andes, and only one species is widely distributed in the whole continent. The snake assemblage in Manizales is mostly terrestrial, and in general, the species tend to be more active in the rainy periods of the year (mainly from October–December), and most of them may occasionally be found in urban areas, mainly close to areas of vegetation such as crops and pastures.
Enfrentamiento de la hiponatremia: Más allá de la corrección del sodio. A propósito de un caso clínico
AIZMAN,ANDRéS; LARRAíN,SOLEDAD; ROJAS,LUIS;
Revista médica de Chile , 2010, DOI: 10.4067/S0034-98872010000900010
Abstract: hyponatremia can be a marker of an underlying disease. we report a 52 years-old male with diabetes mellitus who consulted for an episode of nausea and vomiting lasting four days. his baseline serum sodium was 118 meq/l. he had no neurological deficit. hyponatremia was initially interpreted in context of gastrointestinal fluid loss but correction with saline solution was poor. his urine sodium was 105 meq/l and his urine osmolality was 281 mosm/l, so an inappropriate secretion of antidiuretic hormone syndrome was suspected. later, we found that the patient had a two year history of fatigue, weakness, anorexia, frequent nausea, vomiting and diarrhea, loss of libido and decreased axillary and pubic hair. thyroid-stimulating hormone (tsh) was normal and serum cortisol < 1 μg/dl. a ct scan showed a sellar mass compatible with a macroadenoma. there was also a moderately high serum prolactin and low testosterone, thyroxin and growth hormone levels. the visual fi eld exami-nation showed right temporal hemianopsia. the patient was treated with steroids with a very good clinical response and serum sodium normalization. subsequently a transsphenoidal excision of the tumor was performed and replacement of the other hormones was started. now the patient remains asymptomatic.
Defensive behavior of Dipsas sanctijoannis (Serpentes: Dipsadidae)
Julián Andrés Rojas Morales,Sergio Escobar Lasso
Phyllomedusa : Journal of Herpetology , 2010,
Abstract: Herein, we report the defensive behavior of Dipsas sanctijoannis (Boulenger, 1911) for first time, based on observations of three different individuals in the Municipality of Manizales, Departamento de Caldas, Colombia.
Enfrentamiento de la hiponatremia: Más allá de la corrección del sodio. A propósito de un caso clínico Secondary adrenal insufficiency presenting as hyponatremia: Report of one case
ANDRéS AIZMAN,SOLEDAD LARRAíN,LUIS ROJAS
Revista médica de Chile , 2010,
Abstract: Hyponatremia can be a marker of an underlying disease. We report a 52 years-old male with Diabetes Mellitus who consulted for an episode of nausea and vomiting lasting four days. His baseline serum sodium was 118 mEq/L. He had no neurological deficit. Hyponatremia was initially interpreted in context of gastrointestinal fluid loss but correction with saline solution was poor. His urine sodium was 105 mEq/L and his urine osmolality was 281 mOsm/L, so an Inappropriate Secretion of Antidiuretic Hormone Syndrome was suspected. Later, we found that the patient had a two year history of fatigue, weakness, anorexia, frequent nausea, vomiting and diarrhea, loss of libido and decreased axillary and pubic hair. Thyroid-Stimulating Hormone (TSH) was normal and serum Cortisol < 1 μg/dL. A CT scan showed a sellar mass compatible with a macroadenoma. There was also a moderately high serum prolactin and low testosterone, thyroxin and growth hormone levels. The visual fi eld exami-nation showed right temporal hemianopsia. The patient was treated with steroids with a very good clinical response and serum sodium normalization. Subsequently a transsphenoidal excision of the tumor was performed and replacement of the other hormones was started. Now the patient remains asymptomatic.
Resultados del tratamiento con revascularización distal y ligadura intermedia, de la isquemia de mano después de acceso vascular para hemodiálisis
Rojas N,Reginald; Rojas S G,Andrés; Martínez H,Rodrigo;
Revista chilena de cirugía , 2012, DOI: 10.4067/S0718-40262012000300005
Abstract: background: the creation of vascular accesses for hemodialysis can cause distal ischemia and steal syndromes. aim: to assess the effectiveness of the technique of distal revascularization-interval ligation to alleviate distal ischemia and preserve vascular access. material and methods: retrospective review of medical records, identifying 23 patients (13 women, aged between 24 and 79 years), with distal ischemia secondary to a vascular access for hemodialysis, that were treated with distal revascularization-interval liga-tion. patient characteristics and outcome of the surgical procedure were recorded. results: fourteen patients were diabetic and 15 had high blood pressure. all had the vascular access in the elbow, 20 were done with vein and three were prosthetic. steal appeared in a lapse ranging from hours to six years after performing the procedure. in 14 patients it appeared before 12 months. revascularization was performed between 1 day and three months after the appearance of the steal syndrome. seventeen patients (74%) had a substantial relief of ischemic symptoms, with healing of ulcers and digital amputations. three patients died soon after the procedure (13%). in two the pain persisted, requiring a banding of the access, that finally became thrombosed. one patient required a distal forearm amputation. thirteen patients (56%) had a late death after the procedure. after revascularization, the vascular accesses were used for a mean of two years. conclusions: revascularization-interval ligation relieves distal ischemia and maintains the patency of the vascular access for hemodialysis. patients with steal syndrome secondary to vascular access are of high risk.
Resultados del tratamiento con revascularización distal y ligadura intermedia, de la isquemia de mano después de acceso vascular para hemodiálisis Distal revascularization-interval ligation for ischemic steal syndrome after hemodialysis access. Experience in 23 patients
Reginald Rojas N,Andrés Rojas S G,Rodrigo Martínez H
Revista Chilena de Cirugía , 2012,
Abstract: Objetivo: Investigar la efectividad de la técnica de revascularización distal y ligadura intermedia (RDLI) en aliviar la isquemia y preservar el acceso arteriovenoso. Material y Métodos: Una revisión retrospectiva de fichas clínicas (1990-2010), identificó 26 pacientes con robo. Se excluyen 3, que se sometieron a ligadura del acceso; 23 fueron tratados con RDLI. Se obtuvo información demográfica, comorbilidades, antecedentes del acceso, morbimortalidad y respuesta al tratamiento. Resultados: De los 23 pacientes, 13 eran mujeres y 10 hombres, con edad promedio de 59 a os (24-79 a os). Catorce (61%) eran diabéticos y quince (65%) hipertensos. Todos con acceso en pliegue del codo, 20 con vena y 3 protésicos. La latencia en aparición del robo ocurrió antes de 12 meses, en 14 pacientes (78%); con rango desde horas a 6,5 a os. La revascularización se realizó en tiempo variable entre 1 día y 13 meses; sólo 8 pacientes antes de los 30 días. El 74% de los pacientes (17), tuvo mejoría sustancial o completa de manifestaciones isquémicas, cicatrizando úlceras y amputaciones digitales. Tres fallecieron precozmente; en 2 pacientes, persistió el dolor, requiriendo banding del acceso, que finalmente se trombosó; un paciente debió ser amputado del antebrazo distal, pese a revascularización, al no ceder cuadro infeccioso. La mortalidad operatoria fue de 13%, correspondiendo a 3 pacientes muy deteriorados con isquemia severa. La mortalidad tardía fue de 56,5% (13 pacientes). El tiempo promedio de uso del acceso fue de 2 a os, post revascularización. Conclusión: La RDLI es el procedimiento de elección en el tratamiento del robo, ya que elimina efectivamente la isquemia y mantiene en uso el acceso. Los pacientes con robo, especialmente diabéticos, representan un grupo de alto riesgo y mortalidad. Background: The creation of vascular accesses for hemodialysis can cause distal ischemia and steal syndromes. Aim: To assess the effectiveness of the technique of distal revascularization-interval ligation to alleviate distal ischemia and preserve vascular access. Material and Methods: Retrospective review of medical records, identifying 23 patients (13 women, aged between 24 and 79 years), with distal ischemia secondary to a vascular access for hemodialysis, that were treated with distal revascularization-interval liga-tion. Patient characteristics and outcome of the surgical procedure were recorded. Results: Fourteen patients were diabetic and 15 had high blood pressure. All had the vascular access in the elbow, 20 were done with vein and three were prosthetic. Steal appeared in a
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