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1.
Biotechnol Rep (Amst) ; 27: e00491, 2020 Sep.
Article in English | MEDLINE | ID: mdl-32612942

ABSTRACT

Agar extraction from Gelidium and Gracilaria red seaweed species produces hundred thousand ton of carbohydrate-rich residues annually. Gelidium sesquipedale waste biomass obtained after agar extraction, still contained 44.2 % w/w total carbohydrates (dry-weight basis). These residues were biologically up-graded to poly-3-hydroxybutyrate (P3HB) after saccharification of their carbohydrate fraction to simple sugars. A combined hydrolysis treatment using sulfamic acid followed by enzymatic hydrolysis with cellulases produced a glucose-rich hydrolysate with a negligible content of inhibitors. With this treatment a sugar yield of circa 30 % (g glucose/g biomass) was attained. The algal hydrolysates were assessed as carbon source for the production of P3HB by the halotolerant bacteria Halomonas boliviensis. A cell concentration of 8.3 g L-1 containing 41 % (w/w) of polymer and a yield (YP/S ) of 0.16 gpolymer/gglucose were attained in shake flask assays. In this work, cellulose-rich seaweed waste was shown to be an upgradable, sustainable source of carbohydrates.

2.
Pac Symp Biocomput ; : 157-65, 2010.
Article in English | MEDLINE | ID: mdl-19908368

ABSTRACT

The gram-negative myxobacterium Myxococcus xanthus is equipped with an interesting motility system that allows it to reverse direction on average every 8 minutes by switching the construction of two motility engines at the ends of this rod-shaped bacterium. While the mechanisms responsible for timing and engine construction/deconstruction are relatively well understood, there are several competing hypotheses as to how they are coupled together. In this paper we examine the evidence for protein interactions underlying these possible couplings using a novel framework consisting of a probabilistic model describing protein and domain interactions and a belief propagation inference algorithm. When provided with large amount of indirect pieces of information, such as high-throughput experiment results, and protein structures, we can reliably determine the relative likelihoods of these hypotheses, even though each individual piece of evidence by itself has very limited reliability. The same framework can be used to map large protein and domain interaction networks in myxobacteria and other organisms.


Subject(s)
Bacterial Proteins/chemistry , Bacterial Proteins/physiology , Myxococcus xanthus/physiology , Algorithms , Computational Biology , Databases, Protein , Membrane Proteins/chemistry , Membrane Proteins/physiology , Models, Biological , Movement/physiology , Protein Interaction Domains and Motifs
3.
Pac Symp Biocomput ; : 240-51, 2010.
Article in English | MEDLINE | ID: mdl-19908376

ABSTRACT

Proteins and other macromolecules have coupled dynamics over multiple time scales (from femtosecond to millisecond and beyond) that make resolving molecular dynamics challenging. We present an approach based on periodically decomposing the dynamics of a macromolecule into slow and fast modes based on a scalable coarse-grained normal mode analysis. A Langevin equation is used to propagate the slowest degrees of freedom while minimizing the nearly instantaneous degrees of freedom. We present numerical results showing that time steps of up to 1000 fs can be used, with real speedups of up to 200 times over plain molecular dynamics. We present results of successfully folding the Fip35 mutant of WW domain.


Subject(s)
Molecular Dynamics Simulation/statistics & numerical data , Multiprotein Complexes/chemistry , Biophysical Phenomena , Computational Biology , Models, Molecular , Protein Conformation
4.
An. pediatr. (2003, Ed. impr.) ; 70(6): 553-561, jun. 2009. tab, graf
Article in Spanish | IBECS | ID: ibc-60401

ABSTRACT

Objetivos: Evaluar la concordancia entre padres e hijos sobre los cambios producidos en la calidad de vida relacionada con la salud (CVRS) de niños tratados por trastorno por déficit de atención con hiperactividad (TDAH) durante un corto período de tiempo y comparar las puntuaciones con las normas de referencia de la población general. Métodos: Estudio prospectivo en niños de 6 a 12 años con TDAH. Los padres y sus hijos completaron la versión española del CHIP-CE (Child Health and Illness Profile-Child Edition ‘Perfil de salud infantil’) al iniciar el tratamiento y a las 8 semanas. Las puntuaciones del CHIP-CE de ambas visitas se compararon mediante el test de la t de Student para datos apareados, el tamaño del efecto (TE), los coeficientes de correlación intraclase (CCI) y los diagramas de dispersión. Las evaluaciones de padres e hijos se compararon con las puntuaciones del CHIP-CE de la muestra de referencia española. Resultados: En el análisis se incluyó a 31 niños y a sus padres. El mayor cambio entre la visita inicial y la visita de seguimiento se produjo en la dimensión de riesgos, tanto en los niños como en los padres (TE=0,24 y 0,49, respectivamente). El CCI presentó un intervalo de entre 0,44 (satisfacción) y 0,01 (riesgos). Las puntuaciones de los niños fueron similares a los valores de referencia poblacional. Todas las dimensiones de la versión de padres del CHIP-CE presentaron puntuaciones medias estandarizadas inferiores a los valores de referencia en la visita inicial y fueron próximas a los valores de referencia tras el tratamiento. Conclusiones: El presente estudio mostró poca concordancia entre padres e hijos y sugiere que se deberían recoger ambas perspectivas en futuros estudios del impacto y del tratamiento del TDAH (AU)


Objectives: To assess parent-child agreement on changes over a short-term period of time in the HRQOL of children treated for ADHD over a short period of time, and to compare child and parent ratings of children with ADHD with general population norms. Methods: Prospective study in children 6-12 years old with ADHD. Children and parents completed the Spanish versions of the Child Health and Illness Profile-Child Edition (CHIP-CE) before and after 8 weeks of treatment. CHIP-PE scores at both visits were compared using paired t tests and effect sizes (ES), intra-class correlation coefficients (ICC), and scatter plots. Child and parent ratings were compared with CHIP-CE scores for a general population sample. Results: Thirty-one children and parents were included in the analysis. The highest change between the first and the follow-up visit was on the Risk Avoidance domain both children and parents (effect size [ES]=0.24 and 0.40, respectively). The ICC ranged from 0.44 (Satisfaction) to 0.01 (Risk avoidance). Child self-ratings were close to general population values. All domains of the parent version presented standardized means below the reference values at the baseline visit and closer to the general population norm after treatment. Conclusions: This study found poor parent-child agreement and suggests that both ratings should be collected in future studies on the impact of ADHD and treatment effectiveness (AU)


Subject(s)
Humans , Male , Female , Child , Attention Deficit Disorder with Hyperactivity/psychology , Quality of Life/psychology , Longitudinal Studies , Parent-Child Relations , Surveys and Questionnaires
5.
An Pediatr (Barc) ; 70(6): 553-61, 2009 Jun.
Article in Spanish | MEDLINE | ID: mdl-19423408

ABSTRACT

OBJECTIVES: To assess parent-child agreement on changes over a short-term period of time in the HRQOL of children treated for ADHD over a short period of time, and to compare child and parent ratings of children with ADHD with general population norms. METHODS: Prospective study in children 6-12 years old with ADHD. Children and parents completed the Spanish versions of the Child Health and Illness Profile-Child Edition (CHIP-CE) before and after 8 weeks of treatment. CHIP-PE scores at both visits were compared using paired t tests and effect sizes (ES), intra-class correlation coefficients (ICC), and scatter plots. Child and parent ratings were compared with CHIP-CE scores for a general population sample. RESULTS: Thirty-one children and parents were included in the analysis. The highest change between the first and the follow-up visit was on the Risk Avoidance domain both children and parents (effect size [ES]=0.24 and 0.40, respectively). The ICC ranged from 0.44 (Satisfaction) to 0.01 (Risk avoidance). Child self-ratings were close to general population values. All domains of the parent version presented standardized means below the reference values at the baseline visit and closer to the general population norm after treatment. CONCLUSIONS: This study found poor parent-child agreement and suggests that both ratings should be collected in future studies on the impact of ADHD and treatment effectiveness.


Subject(s)
Attention Deficit Disorder with Hyperactivity/drug therapy , Parents , Quality of Life , Surveys and Questionnaires , Child , Female , Humans , Male , Observer Variation , Prospective Studies
6.
J R Soc Interface ; 2(3): 237-53, 2005 Jun 22.
Article in English | MEDLINE | ID: mdl-16849182

ABSTRACT

In this paper we present the foundation of a unified, object-oriented, three-dimensional biomodelling environment, which allows us to integrate multiple submodels at scales from subcellular to those of tissues and organs. Our current implementation combines a modified discrete model from statistical mechanics, the Cellular Potts Model, with a continuum reaction-diffusion model and a state automaton with well-defined conditions for cell differentiation transitions to model genetic regulation. This environment allows us to rapidly and compactly create computational models of a class of complex-developmental phenomena. To illustrate model development, we simulate a simplified version of the formation of the skeletal pattern in a growing embryonic vertebrate limb.


Subject(s)
Models, Biological , Morphogenesis/physiology , Animals , Cattle , Cell Death , Cell Division , Cell Physiological Phenomena , Physiology/methods
7.
Arch. venez. pueric. pediatr ; 67(3): 124-131, jul.-sept. 2004. tab, graf
Article in Spanish | LILACS | ID: lil-413953

ABSTRACT

Durante 14 años fueron tratados 24 pacientes (pts) con anemia aplásica adquirida (AAA), pre-escolares (6), escolares (11) y adolescentes (7); rango: 2-16 años. Siete del Distrito Capital. Etiología: idiopática 19/24 (79 por ciento), secundaria 5/24 (21 por ciento). Se clasificaron según severidad en: moderada 2/24 (21 por ciento). Se clasificaron según severidad en: moderada 2/24 (8 por ciento), severa 17/24 (71 por ciento) y muy severa 5/24 (21 por ciento). En 16 pts se realizó estudio HLA, 4(25 por ciento) tuvieron donante compatible, en 3 se realizó Trasplante de Médula Osea (TMO). Seguimiento promedio 62 meses. Ciclosporina (CsA) + Corticoesteroides (CtS) 10/24, Remisión Completa (RC) 5/10 (50 por ciento), Remisión Parcial (RP) 1/10 (10 por ciento), Ausencia Remisión (AR) 4/10 (40por ciento); CsA + Globulina antitimocito (ATG) 11/24: RC 4/11 (36,36 por ciento), RP: 4/11 (36,36 por ciento), AR: 3/11 (27,27 por ciento); TMO: 3/24, RC: 100 por ciento; La respuesta terapéutica global fue: 12/24 pts alcanzaron RC (50 por ciento), 5/24 RP (20.83 por ciento) y 6/24 AR (25 por ciento). Evolución clonal se presentó en 3 pts (12 por ciento). El promedio de sobrevida a los 5 años de seguimiento resultó en 70 por ciento para el grupo que recibió CsA + ATG y 58 por ciento para el grupo CsA + Cts., p= 0.28. La sobrevida global a los 5 años fue de 69 por ciento. La AAA idiopática es la etiología más frecuente en el niño y las formas severas y muy severas de la enfermedad representan el 92 por ciento de los casos. La inmunosupresión (IS) es un tratamiento efectivo en pts. que no disponen de donante para TMO. El tratamiento de IS combinado CsA + ATG resultó superior al uso de CsA ++ Cts. Creación de un grupo Cooperativo Nacional para el estudio y tratamiento de la AAA


Subject(s)
Humans , Male , Child , Female , Anemia, Aplastic , Child , Cyclosporine , Globulins , Immunosuppression Therapy , Pediatrics , Venezuela
8.
Bioinformatics ; 20(7): 1129-37, 2004 May 01.
Article in English | MEDLINE | ID: mdl-14764549

ABSTRACT

MOTIVATION: CompuCell is a multi-model software framework for simulation of the development of multicellular organisms known as morphogenesis. It models the interaction of the gene regulatory network with generic cellular mechanisms, such as cell adhesion, division, haptotaxis and chemotaxis. A combination of a state automaton with stochastic local rules and a set of differential equations, including subcellular ordinary differential equations and extracellular reaction-diffusion partial differential equations, model gene regulation. This automaton in turn controls the differentiation of the cells, and cell-cell and cell-extracellular matrix interactions that give rise to cell rearrangements and pattern formation, e.g. mesenchymal condensation. The cellular Potts model, a stochastic model that accurately reproduces cell movement and rearrangement, models cell dynamics. All these models couple in a controllable way, resulting in a powerful and flexible computational environment for morphogenesis, which allows for simultaneous incorporation of growth and spatial patterning. RESULTS: We use CompuCell to simulate the formation of the skeletal architecture in the avian limb bud. AVAILABILITY: Binaries and source code for Microsoft Windows, Linux and Solaris are available for download from http://sourceforge.net/projects/compucell/


Subject(s)
Cell Movement/physiology , Cell Physiological Phenomena , Gene Expression Regulation/physiology , Models, Biological , Morphogenesis/physiology , Software , Animals , Bone and Bones/embryology , Cell Communication/physiology , Cell Division/physiology , Chick Embryo , Chickens , Computer Simulation , Forelimb/embryology , Forelimb/physiology , Systems Integration
10.
Psychol Med ; 29(5): 1151-9, 1999 Sep.
Article in English | MEDLINE | ID: mdl-10576307

ABSTRACT

BACKGROUND: An earlier small-scale study of children with autism revealed that 8.1% of such patients were co-morbid for Gilles de la Tourette syndrome (GTS). The present study is a large scale test of whether this result replicates. METHOD: Four hundred and forty-seven pupils from nine schools for children and adolescents with autism were screened for the presence of motor and vocal tics. RESULTS: Subsequent family interviews confirmed the co-morbid diagnosis of definite GTS in 19 children, giving a prevalence rate of 4.3%. A further 10 children were diagnosed with probable GTS (2.2%). CONCLUSIONS: These results indicate that the rate of GTS in autism exceeds that expected by chance, and the combined rate (6.5%) is similar to the rates found in the smaller-scale study. Methodological considerations and alternative explanations for an increased prevalence are discussed.


Subject(s)
Autistic Disorder/complications , Tourette Syndrome/epidemiology , Adolescent , Adult , Autistic Disorder/psychology , Child , Child, Preschool , Comorbidity , Cross-Sectional Studies , Female , Humans , Male , Prevalence
11.
J Child Psychol Psychiatry ; 40(2): 213-8, 1999 Feb.
Article in English | MEDLINE | ID: mdl-10188703

ABSTRACT

Thirty-seven pupils attending a special school for children and adolescents with autism were observed for the presence of motor and vocal tics. Subsequent family interviews confirmed the diagnosis of comorbid Gilles de la Tourette's Syndrome (GTS) in three children with autism, giving a minimum prevalence rate of 8.1 %. Family history data also suggested this was heritable. The presence of GTS was not associated with superior intellectual, language, or social development. Results suggest that the rate of GTS in autism may exceed that expected by chance. The limited sample size constrains this conclusion. A large-scale epidemiological study testing this association study would appear merited.


Subject(s)
Autistic Disorder/epidemiology , Tourette Syndrome/epidemiology , Adolescent , Adult , Behavioral Symptoms/classification , Behavioral Symptoms/epidemiology , Child , Comorbidity , Education, Special/statistics & numerical data , Female , Humans , Male , Prevalence
12.
Aten Primaria ; 20(3): 127-32, 1997.
Article in Spanish | MEDLINE | ID: mdl-9303671

ABSTRACT

OBJECTIVE: To find the attitude of doctors working in General Medicine and out-patient Traumatology to the prescription of non-steroidal anti-inflammatory drugs (NSAID) and if these attitudes fit quality criteria. DESIGN: Crossover, descriptive study. SETTING: General medicine and out-patient traumatology in the inland area of Vizcaya. PARTICIPANTS: A questionnaire was sent to all doctors working in general medicine (146) and out-patient traumatology (19) in the inland area. MEASUREMENTS AND RESULTS: There was a 78.2% final reply rate. The questionnaire had 14 questions and collected the demographic variables and those which referred to the use of NSAIDs and stomach protectors. The prescription criteria for NSAIDs and stomach protectors were taken from a review of the literature before beginning this study. The most frequent risk factors were a previous history of ulcers (83%) and age > 65 (51.2%). CONCLUSIONS: Although a great many doctors attached great importance to the erosive effects of NSAIDs on the stomach, they still use the most damaging drugs on at-risk patients and prescribe stomach protectors whose efficacy is very doubtful. Age is not thought of enough as a risk factor (only half the doctors considered it); the NSAID which were less damaging to the stomach were little used.


Subject(s)
Anti-Inflammatory Agents, Non-Steroidal/therapeutic use , Drug Prescriptions/standards , Gastrointestinal Agents/therapeutic use , Primary Health Care/standards , Quality of Health Care/standards , Adult , Anti-Inflammatory Agents, Non-Steroidal/adverse effects , Cross-Sectional Studies , Drug Prescriptions/statistics & numerical data , Drug Utilization/standards , Drug Utilization/statistics & numerical data , Female , Gastrointestinal Agents/adverse effects , Humans , Male , Physicians/statistics & numerical data , Primary Health Care/statistics & numerical data , Quality of Health Care/statistics & numerical data , Risk Factors , Spain , Surveys and Questionnaires
13.
Rev. chil. urol ; 62(1): 87-8, 1997. ilus, tab
Article in Spanish | LILACS | ID: lil-212046

ABSTRACT

Se reporta la experiencia en Uruguay del tratamiento de la litiasis urinaria en niños mediante la técnica de litotricia extracorpórea por ondas de choque. De marzo de 1990 a abril de 1996 se han llevado a cabo 34 tratamientos en niños (0,62 por ciento del total). Las edades estuvieron comprendidas entre 1 y 16 años (promedio 11,1 años). No hubo limitaciones técnicas en cuanto al posicionamiento debido al tamaño del paciente. Se utilizó como fuente de energía, tanto el componente Lithostar de localización radioscópica, como el componente Ultra de localización ecográfica. Un 64 por ciento de los tratamientos se realizaron con anestesia. Presentamos antecedentes, técnica de tratamiento, evolución y resultados de los casos tratados destacando la eficiencia del método en la edad pediátrica. Se destaca el tratamiento de una niña de 18 meses con una litiasis coraliforme resuelta en una única sesión, cuya alta se otorgó libre de litiasis


Subject(s)
Humans , Female , Male , Infant , Child, Preschool , Adolescent , Urinary Calculi/therapy , Lithotripsy , Clinical Evolution , Lithotripsy/instrumentation , High-Energy Shock Waves/therapeutic use , Signs and Symptoms , Ultrasonics , Uruguay
14.
Rev. chil. urol ; 62(2): 241-3, 1997. graf
Article in Spanish | LILACS | ID: lil-216365

ABSTRACT

El presente trabajo pretende poner de manifiesto la evolución hacia la adopción de conductas terapéuticas cada vez más conservadoras frente a las lesiones renales secundarias a traumatismos contusos. De enero de 1989 a marzo de 1996 ingresaron 56 pacientes con traumatismo renal: 52 contusos y 4 penetrantes que no se analizaron. 36 varones y 20 niñas cuyas edades oscilan entre los 3 y 14 años. En 3 casos hubo asociación con lesión esplénica y en 2 laceración hepática. La evaluación lesional se realizó mediante ecografía, TAC, Orografía y arteriografía. La conducta terapéutica adoptada en cada caso, estuvo en función del grado de lesión al ingreso, así como de la situación clínica y heinodinárnica del paciente. Se requirió cirugía inmediata en 3 pacientes con traumatismo G' 111 de Hodges y en forma diferida en 7 pacientes con traumatismo G' 11. De estos 7, 5 fueron realizadas en los primeros 4 arios de este estudio. En ninguno de ellos se realizó nefrectomía total. De acuerdo a nuestra experiencia y a la hora de decidir el trataniiento adecuado del traumatismo renal contuso del niño, somos partidarios de la adopción de conductas conservadoras. Una adecuada y precisa valoración clínico-imagenológica permite conseguir resultados para salvar un riñón con la mínima morbilidad


Subject(s)
Humans , Male , Female , Infant , Child, Preschool , Adolescent , Abdominal Injuries/complications , Contusions/complications , Kidney/injuries , Kidney/surgery
15.
Rev. chil. urol ; 62(2): 245-6, 1997.
Article in Spanish | LILACS | ID: lil-216366

ABSTRACT

La punción-incisión endoscópica del ureterocele es un procedimiento sencillo, que en más del 70 por ciento de los casos es el único gesto terapéutico. Que cuanto más precoz se realice, permite desgravitar un sistema obstruido con la consiguiente preservación de la función renal, con baja incidencia de reflujo e infecciones urinarias. Reportamos nuestra experiencia en 5 pacientes. El diagnóstico se confirmó mediante ecografía, en un caso antenatal, cistografía y centellograrna renal. La punción del ureterocele se realiza en el sector intravesical, en el punto más declive. Como resultado se observa la desaparición inmediata del uretrocele y decompresión del sistema obstruido. En la evolución no se verificaron episodios de infección urinaria ni trastornos miccionales. Esta técnica sencilla y de alto grado de seguridad ha demostrado ser en un gran porcentaje, el único procedimiento requerido para la resolución de esta patología. En los casos en que es necesario un procedimiento quirúrgico secundario para su resolución definitiva, permite la realización del mismo en mejores condiciones (mayor desarrollo del niño, aparato urinario degravitado)


Subject(s)
Humans , Female , Infant , Endoscopy/methods , Punctures , Ureterocele/surgery , Ultrasonography, Prenatal
16.
Alcohol Alcohol ; 30(5): 675-80, 1995 Sep.
Article in English | MEDLINE | ID: mdl-8554653

ABSTRACT

Twenty-two South Asian men and 32 European men who had abused alcohol for at least 1.5 years were studied at the time of admission for detoxification to an Alcohol and Drug Dependency unit. The self-confessed average alcohol consumption during the preceding 3 months was similar in the South Asians (mean 383 g/day) and Europeans (mean 435 g/day) but the total duration of alcohol abuse was significantly shorter in South Asians (geometric mean 7.4 years) than Europeans (geometric mean 13.1 years). The geometric mean values for the concentration of carbohydrate-deficient transferrin in the serum were similar in the two ethnic groups. However, the red cell distribution width, the percentages of HbA1a+b, HbA1c and total HbA1 in red cell lysates and the activities of gamma-glutamyl transpeptidase, aspartate aminotransferase and alanine aminotransferase in the serum were all significantly higher in the South Asians than Europeans. The data suggest that South Asian men who abuse alcohol may be more susceptible to alcohol-related liver damage and acetaldehyde-mediated haemoglobin modification than European men who abuse alcohol to a similar extent for a considerably longer period.


Subject(s)
Alcohol Drinking/adverse effects , Alcoholism/ethnology , Cross-Cultural Comparison , Ethnicity , Adult , Alcohol Drinking/ethnology , Alcoholism/rehabilitation , Asia, Southeastern/ethnology , Europe/ethnology , Glycated Hemoglobin/analysis , Humans , Liver Diseases, Alcoholic/diagnosis , Liver Diseases, Alcoholic/ethnology , Liver Function Tests , Male , Middle Aged , Risk Factors , Substance Abuse Treatment Centers , Transferrin/analogs & derivatives , Transferrin/analysis , United Kingdom
17.
Rev. cir. infant ; 4(4): 156-8, dic. 1994. ilus
Article in Spanish | LILACS | ID: lil-154736

ABSTRACT

Desde marzo de 1992 a marzo de 1994 se realizaron 19 tratamientos de litotricia extracorpórea por ondas de choque en niños (LEOC).El objetivo es presentar la experiencia con este procedimiento en la edad pediátrica que corresponde al 0,88 por ciento del total de LEOC realizadas.Las edades estuvieron comprendidas entre los 3 y los 16 años (promedio 11,2 años).Los síntomas clínicos predominantes fueron el dolor 68,4 por ciento , síntomas sugestivos de infección urinaria 42,1 por ciento y hematuria 26,3 por ciento .el 58 por ciento de los pacientes presentaban litiasis única y 35 por ciento múltiple.No hubo limitaciones técnicas en cuanto al posicionamiento del paciente debido al tamaño.Un 64 por ciento de los tratamientos se realizaron con anestesia general.Se utilizó como fuente de energía, el componente Lithostar de localización radioscópica en 11 pacientes y el componente Ultra de localizaciópn ecográfica en 7 oportunidades.No hubo complicaciones, así como ninguno requirió internación luego del procedimiento.No fue necesario instrumentar la vía urinaria post-LEOC en nuestra serie.La LEOC se utiliza cada vez más en niños,demostrando su eficiencia,con un bajo índice de morbilidad


Subject(s)
Lithotripsy , Pediatrics , Urinary Calculi
18.
Rev. cir. infant ; 4(4): 156-8, dic. 1994. ilus
Article in Spanish | BINACIS | ID: bin-23524

ABSTRACT

Desde marzo de 1992 a marzo de 1994 se realizaron 19 tratamientos de litotricia extracorpórea por ondas de choque en niños (LEOC).El objetivo es presentar la experiencia con este procedimiento en la edad pediátrica que corresponde al 0,88 por ciento del total de LEOC realizadas.Las edades estuvieron comprendidas entre los 3 y los 16 años (promedio 11,2 años).Los síntomas clínicos predominantes fueron el dolor 68,4 por ciento , síntomas sugestivos de infección urinaria 42,1 por ciento y hematuria 26,3 por ciento .el 58 por ciento de los pacientes presentaban litiasis única y 35 por ciento múltiple.No hubo limitaciones técnicas en cuanto al posicionamiento del paciente debido al tamaño.Un 64 por ciento de los tratamientos se realizaron con anestesia general.Se utilizó como fuente de energía, el componente Lithostar de localización radioscópica en 11 pacientes y el componente Ultra de localizaciópn ecográfica en 7 oportunidades.No hubo complicaciones, así como ninguno requirió internación luego del procedimiento.No fue necesario instrumentar la vía urinaria post-LEOC en nuestra serie.La LEOC se utiliza cada vez más en niños,demostrando su eficiencia,con un bajo índice de morbilidad


Subject(s)
Pediatrics , Urinary Calculi , Lithotripsy
19.
Arch Esp Urol ; 45(6): 575-6, 1992.
Article in Spanish | MEDLINE | ID: mdl-1510500

ABSTRACT

We describe a case of recurrent urinary tract infection in a male patient that had been repeatedly associated with sporadic sexual intercourse with his partner. The timing of the episodes and the bacteriological findings indicate this to be another uncommon case of urinary tract infection sexually transmitted by the female to the male.


Subject(s)
Escherichia coli Infections/transmission , Sexually Transmitted Diseases, Bacterial , Urinary Bladder Diseases/microbiology , Adult , Humans , Male , Recurrence
20.
Arch Esp Urol ; 44(8): 925-7, 1991 Oct.
Article in Spanish | MEDLINE | ID: mdl-1686702

ABSTRACT

Computed tomography is the most reliable method in the localization of the impalpable testis. This imaging technique permits precise preoperative localization where ultrasound cannot. Moreover, it can provide very useful information in the complicated cases of cryptorchidism (torsion, trauma, tumor) and can disclose other previously undetected coexisting anomalies.


Subject(s)
Cryptorchidism/diagnostic imaging , Tomography, X-Ray Computed , Adolescent , Adult , Child , Child, Preschool , Cryptorchidism/surgery , Evaluation Studies as Topic , Humans , Infant , Male , Prospective Studies , Spermatic Cord Torsion/diagnostic imaging , Testis/injuries , Ultrasonography
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