Relationship between oral status, swallowing function, and nutritional risk in older people with and without Parkinson's disease. / Relação entre estado oral, função de deglutição e risco nutricional entre idosos com e sem doença de Parkinson.

PURPOSE: To compare oral status, swallowing function (through instrumental and SLH assessment), and nutritional risk between dysphagic individuals with and without Parkinson's disease. METHOD: This is a cross-sectional retrospective study based on data collected from medical records. It included 54 dysphagic older adults, divided into two groups according to the diagnosis of Parkinson's disease. The study collected data on the speech-language-hearing assessment of postural control, tongue mobility and strength, maximum phonation time (MPT), and cough efficiency. Oral status was assessed using the number of teeth and the Eichner Index. The level of oral intake and pharyngeal signs of dysphagia were analyzed with four food consistencies, according to the International Dysphagia Diet Standardization Initiative classification, using fiberoptic endoscopic evaluation of swallowing, for comparison between groups. The severity of pharyngeal residues was analyzed and classified with the Yale Pharyngeal Residue Severity Rating Scale, and the nutritional risk was screened with the Malnutrition Screening Tool. RESULTS: The group of older adults with Parkinson's disease was significantly different from the other group in that they had fewer teeth, unstable postural control, reduced tongue strength, reduced MPT, weak spontaneous coughing, pharyngeal signs, less oral intake, and nutritional risk. CONCLUSION: Dysphagic older people with Parkinson's disease had different oral status, swallowing function, and nutritional risk from those without the diagnosis.

OBJETIVO: Comparar o estado oral, a função de deglutição por meio da avaliação instrumental, fonoaudiológica e do risco nutricional entre indivíduos disfágicos com e sem doença de Parkinson. MÉTODO: Trata-se de um estudo transversal e retrospectivo com base na coleta de dados dos prontuários. Foram incluídos 54 idosos disfágicos divididos em dois grupos, de acordo com a presença do diagnóstico de doença de Parkinson. Foram coletados dados com relação à avaliação fonoaudiológica de controle postural, mobilidade e força de língua, Tempo Máximo de Fonação (TMF) e eficiência da tosse. O estado oral foi avaliado por meio do número de dentes e o Índice de Eichner. Foram analisados o nível de ingestão oral e os sinais faríngeos de disfagia em quatro consistências alimentares, de acordo com a classificação International Dysphagia Diet Standardisation Initiative (IDDSI), por meio da videoendoscopia da deglutição, para comparação entre os grupos. Para análise e classificação da gravidade dos resíduos faríngeos, foi utilizado o Yale Pharyngeal Residue Severity Rating Scale (YPRSRS), enquanto que, para rastrear o risco nutricional foi utilizado o Malnutrition Screening Tool (MST). RESULTADOS: O grupo de idosos com doença de Parkinson apresentou diferença significativa em menor número de dentes, controle postural instável, força de língua reduzida, TMF reduzido, tosse espontânea fraca, sinais faríngeos, nível de ingestão oral menor e em risco nutricional, em comparação ao outro grupo. CONCLUSÃO: Os idosos disfágicos com doença de Parkinson apresentaram diferenças no estado oral, na função de deglutição e no risco nutricional em comparação àqueles sem o diagnóstico.

Pharyngeal phase of swallowing in post-stroke dysphagia: videoendoscopy and speech-language-hearing assessment. / Fase faríngea da deglutição na disfagia pós-AVE: achados videoendoscópios e da avaliação fonoaudiológica.

PURPOSE: To investigate the outcomes of fiberoptic endoscopic evaluation of pharyngeal swallowing phase and clinical evaluation of swallowing among dysphagic individuals with and without chronic stroke in different food consistencies. METHODS: This is a cross-sectional and retrospective study based on data collection from medical records. 134 swallowing video endoscopy exams of dysphagic patients were analyzed, in which they were divided into two groups according to the diagnosis of stroke, in which data were collected regarding mobility and strength of the tongue, phonation and cough efficiency, and the pharyngeal signs of dysphagia with four food consistencies from the International Dysphagia Diet Standardization Initiative (IDDSI), for comparison between groups. To analyze and classify the severity of pharyngeal residues, the Yale Pharyngeal Residue Severity Rating Scale (YPRSRS) was used by two independent professionals. RESULTS: There was a significant difference in the presence of pharyngeal residue, laryngeal penetration and laryngotracheal aspiration in all consistencies evaluated (level 0, 2, 4 and 7) (p= <0.001), in addition to the association with multiple swallowing in thin liquid, slightly thickened liquid and solid (level 0, 2 and 7) (p= 0.026). CONCLUSION: Dysphagic individuals diagnosed with stroke showed differences in videoendoscope signs of pharyngeal residue, laryngeal penetration and laryngotracheal aspiration, regardless of the food consistency assessed, compared to dysphagic individuals without the diagnosis. Just as there was a difference in the finding of multiple swallowing only in the consistencies of thin liquid, extremely thickened liquid and solid.

OBJETIVO: Investigar os achados videoendoscópios da fase faríngea da deglutição e da avaliação clínica da deglutição, entre indivíduos disfágicos com e sem AVE crônico em diferentes consistências alimentares. MÉTODO: Trata-se de um estudo transversal e retrospectivo com base na coleta de dados dos prontuários. Foram analisados 134 exames da videoendoscopia da deglutição de pacientes disfágicos, em que foram divididos em dois grupos de acordo com o diagnóstico de AVE, na qual, foram coletados dados com relação à mobilidade e força de língua, fonação e eficiência da tosse, e os sinais faríngeos de disfagia com quatro consistências alimentares do International Dysphagia Diet Standartisation Initiative (IDDSI), para comparação entre os grupos. Para análise e classificação da gravidade dos resíduos faríngeos, foi utilizado o Yale Pharyngeal Residue Severity Rating Scale (YPRSRS) por dois profissionais independentes. RESULTADOS: Houve diferença significativa com a presença de resíduos faríngeos, penetração laríngea e aspiração laringotraqueal em todas as consistências avaliadas (nível 0, 2, 4 e 7) (p= <0,001), além da associação com deglutições múltiplas em líquido ralo, líquido levemente espessado e sólido (nível 0, 2 e 7) (p= 0,026). CONCLUSÃO: Os indivíduos disfágicos com diagnóstico de acidente vascular encefálico apresentaram diferença nos sinais videoendoscópios de resíduos faríngeos, penetração laríngea e aspiração laringotraqueal independentemente da consistência alimentar avaliada, em comparação aos indivíduos disfágicos sem o diagnóstico. Assim como houve diferença no achado da deglutição múltipla apenas nas consistências de líquido ralo, líquido extremamente espessado e sólido.

Relationship between mastication and malnutrition in community-dwelling older adults: a meta-analysis.

PURPOSE: To determine the relationship between mastication and malnutrition in community-dwelling older adults. RESEARCH STRATEGIES: To establish the eligibility criteria, the acronym PECOS was used: Population: non-institutionalized older adults; Exposure: older adults with malnutrition; Control: older adults without malnutrition; Outcome: masticatory problems in malnourished older adults; Study types: observational studies. SELECTION CRITERIA: It selected studies assessing malnutrition and mastication difficulties in non-institutionalized adults over 60 years old, of both sexes. Mastication and malnutrition were evaluated with questionnaires on self-reported symptoms and clinical and instrumental assessments. There were no restrictions on language, year of publication, or ethnicity. DATA ANALYSIS: The included studies were evaluated for methodological quality with the Joanna Briggs Institute tool for cross-sectional studies. For the cross-sectional studies included, the odds ratio (OR) was calculated with 95% confidence intervals. RESULTS: After searching the databases, 692 references were retrieved, with three studies selected for quantitative and qualitative analysis. The values obtained in the meta-analysis for association show that malnutrition and mastication difficulties were 2.21 times as likely to occur (OR = 2.21; 95%CI = 0.93 - 5.26; I2 = 94%) as individuals without malnutrition (p < 0.001). The assessment of the risk of bias presented a high-risk, a moderate-risk, and a low-risk study. The certainty of evidence was rated very low with the GRADE tool. CONCLUSION: Individuals at risk of malnutrition are 2.21 times as likely to have mastication difficulties.

Disfagia orofaríngea na malformação de Chiari tipo I: série de casos clínicos / Oropharyngeal dysphagia in type I Chiari malformation: a clinical case series

RESUMO A malformação de Chiari tipo I é uma condição geralmente congênita de herniação das tonsilas cerebelares abaixo do forame magno, que pode levar à compressão das estruturas próximas da fossa craniana posterior ou à obstrução do fluxo do líquido cefalorraquidiano ventril. O tipo I, apesar de raro, é o mais comumente encontrado na população. Este estudo teve como objetivo relatar os achados da videoendoscopia da deglutição, avaliação fonoaudiológica, nível de ingestão oral, risco nutricional e o planejamento terapêutico em três casos de malformação de Chiari tipo I na fase adulta. Foram coletados dados com relação à avaliação fonoaudiológica de mobilidade e força de língua, Tempo Máximo de Fonação, eficiência da tosse e o Índice de Eichner. Foram analisados o nível de ingestão oral e os sinais faríngeos de disfagia em quatro consistências alimentares, de acordo com a classificação da International Dysphagia Diet Standartisation Initiative), por meio da videoendoscopia da deglutição. Para análise e classificação dos resíduos faríngeos, foi utilizado o Yale Pharyngeal Residue Severity Rating Scale, enquanto que, para rastrear o risco nutricional, foi utilizado o Malnutrition Screening Tool. Observou-se redução mobilidade e força de língua e no Tempo Máximo de Fonação, enquanto que os sinais faríngeos variaram entre os casos, com presença de fechamento glótico incompleto, escape oral posterior, deglutições múltiplas, resíduos faríngeos e penetração laríngea.

ABSTRACT Type I Chiari malformation (MCI) is a generally congenital condition of herniation of the cerebellar tonsils below the foramen magnum, which can lead to compression of structures close to the posterior cranial fossa or obstruction of the flow of ventral cerebrospinal fluid. Type I, although rare, is the most commonly found in the population. This study aimed to report the findings of video endoscopy of swallowing, speech assessment, level of oral intake, nutritional risk and therapeutic planning in three cases of Type I Chiari malformation. Data were collected regarding the assessment of mobility and strength of tongue, Maximum Phonation Time (MPT), cough efficiency and the Eichner Index. The level of oral intake and pharyngeal signs of dysphagia were analyzed in four food consistencies, according to the International Dysphagia Diet Standardization Initiative (IDDSI) classification, using swallowing video endoscopy. For analysis and classification of pharyngeal residues, the Yale Pharyngeal Residue Severity Rating Scale (YPRSRS) was used, while the Malnutrition Screening Tool (MST) was used to track nutritional risk. Reduced tongue mobility and strength and reduced MPT were observed, while pharyngeal signs varied between cases, with the presence of incomplete glottic closure, posterior oral escape, multiple swallows, pharyngeal residues and laryngeal penetration.

Relationship between mastication and malnutrition in community-dwelling older adults: a meta-analysis

ABSTRACT Purpose To determine the relationship between mastication and malnutrition in community-dwelling older adults. Research strategies To establish the eligibility criteria, the acronym PECOS was used: Population: non-institutionalized older adults; Exposure: older adults with malnutrition; Control: older adults without malnutrition; Outcome: masticatory problems in malnourished older adults; Study types: observational studies. Selection criteria It selected studies assessing malnutrition and mastication difficulties in non-institutionalized adults over 60 years old, of both sexes. Mastication and malnutrition were evaluated with questionnaires on self-reported symptoms and clinical and instrumental assessments. There were no restrictions on language, year of publication, or ethnicity. Data analysis The included studies were evaluated for methodological quality with the Joanna Briggs Institute tool for cross-sectional studies. For the cross-sectional studies included, the odds ratio (OR) was calculated with 95% confidence intervals. Results After searching the databases, 692 references were retrieved, with three studies selected for quantitative and qualitative analysis. The values obtained in the meta-analysis for association show that malnutrition and mastication difficulties were 2.21 times as likely to occur (OR = 2.21; 95%CI = 0.93 - 5.26; I2 = 94%) as individuals without malnutrition (p < 0.001). The assessment of the risk of bias presented a high-risk, a moderate-risk, and a low-risk study. The certainty of evidence was rated very low with the GRADE tool. Conclusion Individuals at risk of malnutrition are 2.21 times as likely to have mastication difficulties.

Tempo de transição alimentar e método de alimentação na alta hospitalar de prematuros com displasia broncopulmonar / Feeding transition time and feeding method at hospital discharge of preterm infants with bronchopulmonary dysplasia

RESUMO Objetivo Comparar o tempo de transição alimentar e a forma de alimentação por via oral na alta hospitalar, entre recém-nascidos prematuros com diagnóstico de displasia broncopulmonar e prematuros sem o diagnóstico. Métodos Estudo transversal, retrospectivo com base na coleta de dados nos prontuários. Foram coletados dados de 78 recém-nascidos, em uma maternidade de referência. A amostra foi estratificada em dois grupos, de acordo com a presença do diagnóstico de displasia broncopulmonar, sendo um grupo de prematuros com displasia broncopulmonar e outro sem. Foram analisados o tempo de transição alimentar e o método de alimentação na alta hospitalar de ambos os grupos. Resultados Houve diferença significativa no tempo de transição alimentar e no método de alimentação na alta hospitalar entre os grupos. Os recém-nascidos pré-termo com displasia broncopulmonar apresentaram média de 18,03 (± 5,5) dias de transição e saíram em uso de mamadeira. Conclusão O grupo com displasia broncopulmonar necessitou de maior tempo de transição alimentar e teve menor frequência de aleitamento materno exclusivo, em relação ao grupo sem o diagnóstico.

ABSTRACT Purpose To compare the time of food transition and the form of oral feeding at hospital discharge, between premature newborns diagnosed with bronchopulmonary dysplasia and premature newborns without the diagnosis. Methods Cross-sectional, retrospective study based on data collection from medical records. Data were collected from 78 newborns, in a reference maternity hospital, in which the sample was stratified into two groups according to the presence or absence of the diagnosis of bronchopulmonary dysplasia. The time of food transition and the feeding method at hospital discharge were analyzed for both groups. Results There was a significant difference in the time of food transition and in the feeding method at hospital discharge between the groups. Preterm newborns with bronchopulmonary dysplasia had an average of 18.03 (± 5.5) transition days and left using a bottle. Conclusion The group with bronchopulmonary dysplasia required a longer time of food transition and fewer ( of its ) infants had exclusive breastfeeding compared to the group without the diagnosis.

Seasonal and pluviometric effects on the phenolic compound composition and antioxidant potential of Licania macrophylla Benth (Chrysobalanaceae), a medicinal plant from the Amazon rainforest

Abstract Licania macrophylla is a medicinal plant from the Amazon. It is mainly used in the form of a decoction and has been reported to contain several phenolic compounds. However, the effect of seasonality on the phenolic composition and antioxidant potential of this plant has not been well studied, especially in the Amazon region, an area affected by the rainy and less-rainy seasons. Therefore, we evaluated the seasonality of these aromatic compounds and the antioxidant potential of the extracts from L. macrophylla stem bark. We also determined the correlation between the extraction methods used and precipitation levels during each period for 1 year. The total flavonoid and phenolic content, DPPH-scavenging potential, percentage of phosphomolybdenum complex reduction, and iron-reducing power were quantified. The levels of phenolic compounds were the highest in June, whereas those of flavonoids were the highest in September and October; however, these differences were not significant. The extracts from April, November, and June showed the best results for DPPH scavenging, phosphomolybdenum reduction, and iron reduction power, respectively. Significant differences in the phenolic content and DPPH-scavenging activity were observed between the more- and less-rainy seasons. The total phenolic content was positively correlated with FRAP and DPPH, whereas flavonoid levels were negatively correlated.

Angiotomografía de las variantes anatómicas de la arteria cística: estudio en el preoperatorio de colelitiasis / Angiotomography of the anatomical variants of the cystic artery: pre-operative study of cholelithiasis

La colecistectomía laparoscópica es el tratamiento indicado en la colelitiasis, sin embargo el procedimiento no está exento de complicaciones o morbilidad concomitante. Es posible que, debido a lesiones ductales colaterales, ocurra sangrado con posibilidad de conversión de la cirugía e indeseables resultados. Para un correcto abordaje de la región se hace fundamental la identificación del trígono cistohepático (TCH) y sus componentes, a su vez de la ligadura y sección de la arteria cística (AC). Conociendo la elevada variabilidad de la AC, el objetivo de este trabajo consistió en identificar el número, origen, trayecto y relación de la AC con el TCH y sus variaciones, utilizando angiotomografía por medio de un tomógrafo detector de 64 cortes, en el preoperatorio de 30 pacientes de sexo femenino, entre 24 y 54 años de edad, con colelitiasis diagnosticadas clínicamente y por ecosonografía. La AC en el 76,67 % era única y se encontraba dentro del TCH, en el 16,67 % era única y se observó fuera del TCH. En el 6,67 % se observaron dos AC, una dentro y otra fuera del TCH. En el 66,67 % de los casos la AC se originaba de manera normal de la arteria hepática derecha. La trazabilidad de la AC fue en el 53,3 % medianamente visible y en el 46,7 % de trazabilidad excelente. En conclusión, la identificación de la AC y sus variaciones anatómicas se puede determinar en el preoperatorio y puede ser útil para mejorar el plan quirúrgico en pacientes con colelitiasis, brindando información al procedimiento, optimizarlo y disminuir los riesgos de eventuales complicaciones relacionados con sangrado.

Laparoscopic cholecystectomy is the treatment indicated for cholelithiasis, however the procedure is not free of complications or concomitant morbidity. It is possible that, due to collateral ductal lesions, bleeding occurs with the possibility of surgery conversion and undesirable results. For a correct approach to the region it is essential to identify the cystohepatic trigone (CHT) and its components, as well as the ligation and section of the cystic artery (AC). Knowing the high variability of CA, the aim of this work was to identify the number, origin, path and relationship of CA with the CHT and its variations using angiotomography by means of a 64-slice detector tomograph in the preoperative period of 30 female patients, between 24 and 54 years old, with clinically diagnosed cholelithiasis and by echo sonography. The AC in 76.67 % was unique and was within the CHT, in 16.67 % it was unique and was observed outside the CHT. In 6.67 %, two ACs were observed, one inside and one outside the TCH. In 66.67 % of cases, CA originated normally from the right hepatic artery. The traceability of AC was 53.3 % moderately visible and 46.7 % excellent traceability. In conclusion, the identification of AC and its anatomical variations can be determined in the preoperative period and can be useful to improve the surgical plan in patients with cholelithiasis, providing information on the procedure, optimizing it and reducing the risks of possible bleeding related complications.

Rupture of an ascending aortic aneurysm as a cause of sudden death.

An 84-year-old female patient was brought to the emergency department in cardiac arrest. Cardiopulmonary resuscitation maneuvers were performed but were unsuccessful. The patient had a past medical history of systemic arterial hypertension with target-organ lesions, including stroke and myocardial infarction. The autopsy was carried out, and the most striking finding was cardiac tamponade due to the rupture of an ascending aortic aneurysm at the site of a complex atheromatous plaque. Rupture is the most serious complication of a thoracic aneurysm and must be considered in the differential diagnosis of sudden death.

First description of multivalent ring structures in eutherian mammalian meiosis: new chromosomal characterization of Cormura brevirostris (Emballonuridae, Chiroptera).

Twelve specimens of the bat Cormura brevirostris (Emballonuridae: Chiroptera) were collected from four localities in the Brazilian Amazon region and analyzed by classical and molecular cytogenetics. The diploid number and autosomal fundamental number were as previously reported (2n = 22 and FNa = 40, respectively). Fluorescence in situ hybridization using rDNA probes and silver nitrate technique demonstrated the presence of two NOR sites and the presence of internal telomeric sequences at pericentromeric regions of all chromosomes with exception of Y. Based on meiotic studies and chromosome banding we suggest that the sex chromosome pair of C. brevirostris was equivocally identified as it appears in the literature. Meiotic analysis demonstrated that at diplotene-diakinesis the cells had a ring conformation involving four chromosome pairs. This suggests the occurrence of multiple reciprocal translocations among these chromosomes, which is a very rare phenomenon in vertebrates, and has never been described in Eutheria.

Cor triatriatum sinister: A propósito de un caso / Cor triatriatum sinister: Report of a case / Cor triatriatum sinister: Relato de um caso

El cor triatriatum sinister es una causa muy poco común de hipertensión pulmonar venosa y de insuficiencia cardíaca congestiva, con una incidencia reportada del 0,1% de los niños con defectos cardíacos congénitos. La historia natural de este defecto depende del tamaño del orificio en la membrana. Se caracteriza por la presencia de una membrana fibromuscular que divide la aurícula izquierda en dos cavidades, comunicadas por uno o varios orificios, con distintos grados de obstrucción. La forma obstructiva parcial puede cursar asintomática y ser diagnosticada en forma casual por un ecocardiograma. Se asocia con frecuencia a otras anomalías congénitas entre ellas a comunicación interauricular (CIA). Presentamos el caso de una mujer de 43 años, portadora de hipertensión arterial con antecedentes de cierre directo de una CIA hace 8 meses, diagnóstico confirmado por ecocardiografía transesofágica (ETE). Consulta con su médico de cabecera por palpitaciones precordiales de aparición súbita. En el electrocardiograma se evidencia aleteo auricular atípico. La paciente es internada para la realización de una cardioversión eléctrica. Durante la realización de un ETE, se encuentran hallazgos compatibles con cor triatriatum: cortocircuito a través de una CIA de izquierda a derecha; insuficiencia tricúspide severa, gradiente entre ventrículo y aurícula derechos de 65 mm Hg; presión sistólica pulmonar estimada en 85 mm Hg. Posterior a la resolución de la arritmia se realiza atriotomía derecha a través de la CIA, resecándose la membrana obstructiva, cerrándose luego la CIA con amplio parche de dacron. Actualmente, paciente con buena evolución, en seguimiento clínico cardiológico.

The cor triatriaum sinister is a very rare cause of pulmonary venous hypertension and congestive heart failure, with a reported incidence of 0.1% of children with congenital heart defects. The natural history of this defect depends on the size of the hole in the membrane. It is characterized by the presence of a fibromuscular membrane dividing the left atrium into two chambers, connected by one or several holes, with varying degrees of obstruction. The obstructive form part may be asymptomatic and diagnosed incidentally by an echocardiogram. It is frequently associated with other congenital anomalies including a atrial septal defects (ASD). We report the case of a 43 year old hypertensive woman with a history of direct closure of ASD 8 months ago, confirmed diagnosis by transesophageal echocardiography (TEE). She consults her doctor for sudden onset of precordial palpitations. The electrocardiogram showed atypical atrial flutter. The patient was hospitalized for electrical cardioversion. During the execution of an TEE, we found consistent findings with cor triatriatum: shunt through an ASD from left to right; severe tricuspid regurgitation, gradient between right ventricle and atrium of 65 mm Hg; pulmonary systolic pressure rated at 85 mm Hg. After the resolution of the arrhythmia, we performed a right atriotomy through the ASD, resecting the obstructive membrane, ASD closes again with a large patch of dacron. Currently the patient presents a good outcome in cardiological clinical monitoring.

O cor triatriaum sinister é uma rara causa de hipertensão pulmonar venosa e da insuficiência cardíaca congestiva, com uma incidência de 0,1% das crianças com cardiopatias congênitas. A história natural do defeito depende do tamanho do buraco na membrana. É caracterizada pela presença de uma membrana fibromuscular dividindo o átrio esquerdo em duas câmaras, ligadas por um ou vários buracos, com diferentes graus de obstrução. Fazem parte obstrutiva pode ser assintomática e ser diagnosticada incidentalmente por um ecocardiograma. É freqüentemente associada com outras anomalias congênitas, incluindo uma comunicação interatrial (CIA). Relatamos o caso de uma mulher de 43 anos, portadora de hipertensão arterial e história de fechamento direto da CIA oito meses diagnóstico confirmado pelo ecocardiograma transesofágico (ETE). Consulte o seu médico para o início súbito de palpitações precordiais. O eletrocardiograma mostrou flutter atrial atípico. A paciente foi internada para realizar cardioversão elétrica. Durante a execução de uma ETE, encontramos os resultados consistentes com cor triatriatum: derivação através de um CIA da esquerda para a direita; regurgitação tricúspide grave, gradiente entre o ventrículo direito e átrio de 65 mm Hg; pressão sistólica pulmonar avaliado em 85 mm Hg. Após a resolução da arritmia, foi realizada uma atriotomia direita através da CIA, a ressecção da membrana obstrutiva, seguida de fechamento da CIA com uma grande remendo de dacron. Atualmente, a paciente apresenta boa evolução na monitorização clínica cardiológica.

Brote de malaria inducida en sala de pediatría del Hospital José G. Hernández Trujillo, Venezuela 2006 / Induced malaria outbreak in pediatric wards of the José G. Hernández Hospital Trujillo, Venezuela 2006

Con el objetivo de establecer la naturaleza de la transmisión, se realizó una investigación operativa sobre un brote de malaria en menores hospitalizados en la Sala de Pediatría del Hospital José Gregorio Hernández de la ciudad de Trujillo, occidente de Venezuela, donde fueron hospitalizados 364 niños durante Enero-Marzo de 2006. Mediante microscopía se diagnosticó malaria a Plasmodium vivax. La dispersión geográfica de los casos, fuera de áreas receptivas y vulnerables, presentándose sólo en pacientes pediátricos con antecedentes de hospitalización, así como la ausencia de adultos enfermos y de vectores suficientes, permanentes y eficaces, alejaron la plausibilidad de la transmisión vectorial. Activado el sistema de vigilancia epidemiológica, se ubicó en su residencia a cada uno de los menores, diagnosticando dieciocho casos inducidos a P. vivax. La malaria inducida, como expresión de errores importantes en procedimientos de administración del tratamiento parenteral, podría estar exponiendo a la población a otros riesgos, tales como hepatitis o VIH, sin descartar que la malaria misma hubiera podido ocasionar la muerte de estos niños.

Abundancia y diversidad de la fauna anofelina en áreas vulnerables a la transmisión malárica del estado Trujillo, Venezuela / Abundance and discuty of the anophele fauna in vulnerable areas to malarical transmissión of the Trujillo state, Venezuela

Para evaluar la distribución geográfica de la fauna anofelina, en áreas consideradas susceptibles y vulnerables a la transmisión malárica en el Estado Trujillo se realizaron durante un año muestreos sistemáticos entre las 19:00 y 22:00 horas en diez localidades del estado. En tres de ellas , Buena Vista, El Cenizo y Agua Viva, los muestreos fueron cada 21 días, en otras seis localidades Jalisco, San Gonzalo, Los Pajones, El Prado, Madre Vieja y San José fueron trimestrales mientras que una, La Ceiba, se realizaron solamente dos evaluaciones. Los resultados señalan variaciones en la riqueza de especies en algunas localidades en comparación con data de 1976, sin embargo se mantiene la simpatricidad entre anopheles albimanus, A. darlingi y A. albimanus se mantiene la simpatricidad en las localidades de Jalisco, Los Pajones y San José. Las especies anofelinas reportadas en 1976 tienden a permanecer en las misma áreas, aunque se detectaron variaciones en la distribución de estas luego de 22 años (au)