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1.
Rev Esp Anestesiol Reanim (Engl Ed) ; 70(5): 269-275, 2023 05.
Artigo em Inglês | MEDLINE | ID: mdl-37150439

RESUMO

BACKGROUND: Brain ultrasound allows measuring the cerebral flow velocity, brain midline shift and optic nerve sheath diameter. Literature is scarce in determining the feasibility to perioperatively perform these measurements altogether and the cerebrovascular behavior in patients scheduled for elective craniotomy. METHODS: We assessed bilateral cerebral flow velocities, composite index, brain midline shift and optic nerve sheath diameter by cerebral ultrasound in patients scheduled for elective craniotomy before anesthetic induction, at extubation, and at 6 and 24 h after. The aim was to assess the feasibility of brain ultrasound in patients for elective craniotomy and to describe the changes in cerebral flow velocities, brain midline shift and optic nerve sheath diameter from baseline values at different times in the postoperative period. RESULTS: Sixteen patients were included, of these two were excluded from analysis due to an inadequate sonographic window. There were no changes throughout the study regarding cerebral flow velocity, brain midline shift nor optic nerve sheath diameter assessments. All parameters were maintained in the physiological range without significant variations during the procedure. No perioperative complications were detected. CONCLUSIONS: The results of our study show the feasibility to perform a perioperative assessment of cerebral flow velocity, brain midline shift or optic nerve sheath diameter jointly and successfully to obtain additional information of baseline cerebral hemodynamics in patients scheduled for elective craniotomy and their postoperative changes during the first 24 h. Future studies with lager samples are needed to address the efficacy of cerebral ultrasound as a monitoring tool.


Assuntos
Encéfalo , Ultrassonografia Doppler Transcraniana , Humanos , Estudos de Viabilidade , Velocidade do Fluxo Sanguíneo , Craniotomia , Nervo Óptico/diagnóstico por imagem
2.
Rev. esp. anestesiol. reanim ; 70(5): 269-275, May. 2023. tab
Artigo em Espanhol | IBECS | ID: ibc-219859

RESUMO

Introducción: La ecografía cerebral permite valorar las velocidades del flujo sanguíneo cerebral (VFSC), la desviación de la línea media (DLM) y el diámetro de la vaina del nervio óptico (DVNO). La literatura es escasa en determinar la viabilidad de realizar dichas medidas, de forma conjunta en el perioperatorio, en pacientes programados para craneotomía electiva. Métodos: Evaluamos las VFSC de forma bilateral con sus índices compuestos, la DLM y el DVNO por medio de ultrasonido cerebral en pacientes programados para craneotomía electiva antes de la inducción anestésica, en la extubación inmediata, a las seis y 24 horas posoperatorias. El objetivo fue evaluar la viabilidad del uso de la ecografía cerebral en pacientes sometidos a craneotomía electiva y describir los cambios de estas mediciones en diferentes momentos con respecto a los valores basales. Resultados: Fueron incluidos 16 pacientes en el estudio, de los cuales dos se excluyeron del análisis debido a una mala ventana ecográfica. No hubo cambios a lo largo del estudio con respecto a las VFSC, tampoco en la DLM o en el DVNO. Todos los parámetros se mantuvieron dentro de los rangos fisiológicos sin variaciones significativas durante el procedimiento. No hubo complicaciones perioperatorias. Conclusiones: Los resultados de nuestro trabajo muestran la factibilidad de realizar una valoración perioperatoria de las VFSC, DLM y DVNO de forma conjunta y exitosa para obtener información de la hemodinámica cerebral basal en pacientes programados para craneotomía electiva y valorar sus cambios durante las primeras 24 horas del posoperatorio. Son necesarios estudios con mayor número de pacientes para evaluar la eficacia del ultrasonido cerebral como herramienta de monitorización neurológica perioperatoria.(AU)


Background: Brain ultrasound allows measuring the cerebral flow velocity, brain midline shift and optic nerve sheath diameter. Literature is scarce in determining the feasibility to perioperatively perform these measurements altogether and the cerebrovascular behavior in patients scheduled for elective craniotomy. Methods: We assessed bilateral cerebral flow velocities, composite index, brain midline shift and optic nerve sheath diameter by cerebral ultrasound in patients scheduled for elective craniotomy before anesthetic induction, at extubation, and at 6 and 24 hours after. The aim was to assess the feasibility of brain ultrasound in patients for elective craniotomy and to describe the changes in cerebral flow velocities, brain midline shift and optic nerve sheath diameter from baseline values at different times in the postoperative period. Results: Sixteen patients were included, of these two were excluded from analysis due to an inadequate sonographic window. There were no changes throughout the study regarding cerebral flow velocity, brain midline shift nor optic nerve sheath diameter assessments. All parameters were maintained in the physiological range without significant variations during the procedure. No perioperative complications were detected. Conclusions: The results of our study show the feasibility to perform a perioperative assessment of cerebral flow velocity, brain midline shift or optic nerve sheath diameter jointly and successfully to obtain additional information of baseline cerebral hemodynamics in patients scheduled for elective craniotomy and their postoperative changes during the first 24 hours. Future studies with lager samples are needed to address the efficacy of cerebral ultrasound as a monitoring tool.(AU)


Assuntos
Humanos , Neoplasias do Nervo Óptico , Craniotomia , Ultrassonografia Doppler Transcraniana , Neurocirurgia , Estudos Prospectivos , Nervo Óptico
3.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-32171673

RESUMO

BACKGROUND AND AIM: The vascular anatomy of the hand has already been widely described macroscopically. However, there are very few papers that study the pattern of normality of in vivo vascularisation that describe and analyse the main arteries of the hand. The aim of this paper was to carry out a study to serve as a reference for the normal values of size and flow of the radial and ulnar artery at the level of the wrist, and the digital radial and ulnar arteries at the level of the fingers. MATERIAL AND METHOD: A descriptive observational cross-sectional study on 200 hands in 100 healthy volunteers aged between 20-30years. Doppler-colour ultrasound was performed on the ulnar and radial arteries in the wrist, as well as on the radial and ulnar digital arteries in each finger. Once the measurements had been taken, a general comparative analysis was performed also taking laterality, dominance and gender into account. RESULTS: It was observed that the radial artery is larger in size than the ulnar at wrist level, however, it was the ulnar artery that showed flow dominance at this level. At finger level, the arteries are greater in size and flow in the areas of the fingers more protected from injury (digital ulnar artery in the first three and radial artery in the fourth and fifth digits).


Assuntos
Mãos/irrigação sanguínea , Artéria Radial/fisiologia , Fluxo Sanguíneo Regional/fisiologia , Artéria Ulnar/fisiologia , Punho/irrigação sanguínea , Adulto , Estudos Transversais , Dedos/irrigação sanguínea , Humanos , Artéria Radial/anatomia & histologia , Artéria Radial/diagnóstico por imagem , Espanha , Artéria Ulnar/anatomia & histologia , Artéria Ulnar/diagnóstico por imagem , Ultrassonografia , Articulação do Punho/irrigação sanguínea , Adulto Jovem
4.
Rev. argent. radiol ; 83(1): 34-41, mar. 2019. ilus, graf, tab
Artigo em Espanhol | LILACS | ID: biblio-1003288

RESUMO

Los ataques cerebrovasculares (ACV), representan un problema mayor en salud y son una causa importante de discapacidad en todo el mundo. La estenosis u oclusión carotídea aterosclerótica causa alrededor del 20% de las isquemias cerebrovasculares.¹ Los ACV en los enfermos con estenosis carotídea se producen, en la mayoría de los casos, por la aparición de embolismos distales de trombo formado en la placa, oclusión trombótica aguda debido a rotura de la placa, o bien secundarios a las alteraciones hemodinámicas atribuibles a la estenosis, la cual produce disminución de la perfusión cerebral por el hipoflujo, en casos de estenosis críticas o suboclusivas. El tratamiento de la patología carotídea ha evolucionado de forma considerable a lo largo de los últimos años. Existen dos tratamientos invasivos para la estenosis carotídea significativa, que consisten en el abordaje quirúrgico con endarterectomía o tratamiento por vía percutánea con angioplastia y colocación de stent. En nuestra institución se realizaron, en el periodo comprendido entre marzo de 2013 y junio de 2017, aproximadamente 100 angioplastias carotídeas con colocación de stent. Todas fueron valoradas con ecografía Doppler color (EDC) al mes, a los seis meses y al año (en casos no complicados). En esta revisión bibliográfica es nuestra intención desarrollar las indicaciones, aplicaciones, hallazgos normales y patológicos en el examen de EDC en la evaluación de un paciente con stent carotídeo.


Acute stroke represents a major problem in health and is a major cause of disability worldwide. Atherosclerotic carotid stenosis or occlusion causes around 20% of cerebrovascular ischemias.¹ Stroke in patients with carotid stenosis occurs, in most cases, due to embolisms of thrombus formed in the plaque, acute thrombotic occlusion due to rupture of the plaque, or secondary to hemodynamic alterations, attributable to stenosis, which produces decreased cerebral perfusion by low flow, in cases of critical or sub occlusive stenosis. The treatment of carotid disease has evolved considerably over recent years. There are two invasive treatments for significant carotid stenosis, which consist of the surgical approach with endarterectomy or percutaneous treatment with angioplasty and stenting. In our institution, in the period between March 2013 and June 2017, ~100 carotid angioplasties with stent placement were performed. All were assessed with color Doppler ultrasound (DUS) at month, six months and one year (in non complicated cases). In this literature review it is our intention to develop the indications, applications, normal and pathological findings in the DUS examination in the evaluation of a patient with carotid stent.


Assuntos
Humanos , Estenose das Carótidas/diagnóstico por imagem , Ultrassonografia Doppler em Cores/métodos , Stents , Estenose das Carótidas/tratamento farmacológico , Angioplastia , Acidente Vascular Cerebral/complicações
5.
Medisan ; 19(6)jun.-jun. 2015. tab
Artigo em Espanhol | LILACS, CUMED | ID: lil-752939

RESUMO

Se realizó un estudio prospectivo y transversal de 69 pacientes con hepatopatías crónicas de causa desconocida, atendidos en el Departamento de Imagenología del Hospital Provincial Docente Clinicoquirúrgico "Saturnino Lora Torres" de Santiago de Cuba, desde enero del 2009 hasta agosto del 2010, a fin de determinar las alteraciones ultrasonográficas vasculares en los afectados. Predominaron el grupo etario de 52-59 años (39,1 %), el sexo masculino (69,6 %), la localización prehepática (44,9 %), las trombosis de la vena porta (47%), la dilatación de venas suprahepáticas (89,7%) y las causas prehepáticas (44,9%). Las ecografías Doppler dúplex y Doppler color permitieron establecer pautas diagnósticas en estos pacientes, sin afectar el completamiento de su evaluación con otros estudios hemodinámicos.


A prospective and cross-sectional study of 69 patients with chronic hepatopathies of unknown etiology, assisted in the Imagenology Department of "Saturnino Lora Torres" Teaching Provincial Clinical Surgical Hospital in Santiago de Cuba was carried out from January, 2009 to August, 2010, in order to determine the ultrasonographic vascular changes in the affected patients. The age group 52-59 (39.1%), the male sex (69.6%), the localization (44.9%), the thromboses of the portal vein (47%), the dilation of suprahepatic veins (89.7%) and the prehepatic etiologies (44.9%) prevailed. The Doppler duplex and Doppler colour echographies allowed to establish diagnostic criteria in these patients, without affecting their evaluation with other hemodynamic studies.


Assuntos
Ultrassonografia Doppler , Trombose Venosa , Atenção Secundária à Saúde , Hepatopatias
6.
Medisan ; 19(6)jun. 2015. tab
Artigo em Espanhol | CUMED | ID: cum-62190

RESUMO

Se realizó un estudio prospectivo y transversal de 69 pacientes con hepatopatías crónicas de causa desconocida, atendidos en el Departamento de Imagenología del Hospital Provincial Docente Clinicoquirúrgico Saturnino Lora Torres de Santiago de Cuba, desde enero del 2009 hasta agosto del 2010, a fin de determinar las alteraciones ultrasonográficas vasculares en los afectados. Predominaron el grupo etario de 52-59 años (39,1 por ciento), el sexo masculino (69,6 por ciento), la localización prehepática (44,9 por ciento), las trombosis de la vena porta (47 por ciento), la dilatación de venas suprahepáticas (89,7 por ciento) y las causas prehepáticas (44,9 por ciento). Las ecografías Doppler dúplex y Doppler color permitieron establecer pautas diagnósticas en estos pacientes, sin afectar el completamiento de su evaluación con otros estudios hemodinámicos(AU)


A prospective and cross-sectional study of 69 patients with chronic hepatopathies of unknown etiology, assisted in the Imagenology Department of Saturnino Lora Torres Teaching Provincial Clinical Surgical Hospital in Santiago de Cuba was carried out from January, 2009 to August, 2010, in order to determine the ultrasonographic vascular changes in the affected patients. The age group 52-59 (39.1 percent), the male sex (69.6 percent), the localization (44.9 percent), the thromboses of the portal vein (47 percent), the dilation of suprahepatic veins (89.7 percent) and the prehepatic etiologies (44.9 percent) prevailed. The Doppler duplex and Doppler colour echographies allowed to establish diagnostic criteria in these patients, without affecting their evaluation with other hemodynamic studies(AU)


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Hepatopatias , Trombose Venosa , Atenção Secundária à Saúde , Ecocardiografia Doppler , Ecocardiografia Doppler em Cores , Estudos Transversais , Estudos Prospectivos
7.
Rev. chil. dermatol ; 30(1): 14-26, 2014. ilus
Artigo em Espanhol | LILACS | ID: biblio-835911

RESUMO

El uso de la ecografía Doppler color en dermatología ha traspasado la etapa experimental alcanzando la práctica diaria dermatológica. Su utilización abarca una gran variedad de patologías, lo que incluye frecuentes tumores benignos y malignos, enfermedades inflamatorias, el estudio de la uña y el pelo entre muchas otras aplicaciones. Esta técnica por imágenes no invasiva requiere de equipamiento especial y operadores entrenados, estando sus ventajas y limitaciones ya descritas en la literatura. Su utilización también permite discriminar las patologías de origen dermatológico de frecuentes simuladores de enfermedades dermatológicas. La información anatómica detallada descrita por esta técnica no es posible deducir por la mera inspección visual de un clínico, por lo este método por imágenes permitiría ayudar a realizar diagnósticos más precoces y precisos.


The usage of Color Doppler ultrasound in dermatology has surpassed the experimental phase and has been included in the daily dermatologic practice. There is a wide range of applications of this imaging technique such as benign and malignant tumors, inflammatory diseases as well as the study of the nail and the scalp, among others. It requires special ultrasound equipment and trained operators, being their advantages and limitations already described in literature. The detailed anatomical information provided by this imaging technique cannot be deduced by the physical examination of a well-trained physician, therefore this imaging modality may support a more early and precise diagnosis.


Assuntos
Humanos , Ecocardiografia Doppler em Cores , Dermatopatias
8.
Rev. chil. radiol ; 16(1): 36-38, 2010. ilus
Artigo em Espanhol | LILACS | ID: lil-577487

RESUMO

Pseudoaneurysm is a collection of blood adjacent to a punctured blood vessel, connected with it and characterized by an inner bidirectional flow in relation with systole and diastole. This diagnosis is usually based on color Doppler examination findings, among which we can highlight the visualization of a collection with a two-way flow pattern, with a red and a blue component, which resembles the Chinese Yin Yang symbol. The increase in the number of angiographic procedures and arterial catheterization requires from radiologists the ability to properly diagnose the complications these procedures may entail.


El pseudoaneurisma corresponde a una colección adyacente a un vaso arterial puncionado, conectada con éste y con flujo bidireccional en su interior, en relación con el sístole y el diastole. Habitualmente este diagnóstico se basa en los hallazgos al estudio Doppler color, entre los cuales destaca la visualización de una colección que presenta flujo en dos direcciones, que se representa en dos colores y se asemeja al signo oriental del Yin Yang. El aumento en el número de procedimientos angiográficos y cateterizaciones arteriales requiere que los radiólogos diagnostiquen adecuadamente las complicaciones que estos procedimientos pueden presentar.


Assuntos
Humanos , Falso Aneurisma , Ultrassonografia Doppler em Cores , Diagnóstico Diferencial
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