Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 101
Filter
1.
Arq. bras. med. vet. zootec. (Online) ; 73(4): 861-867, Jul.-Aug. 2021. ilus
Article in English | LILACS, VETINDEX | ID: biblio-1285260

ABSTRACT

The aim of this study was to evaluate the anatomical structures of the skulls of peccaries to establish the basis for their clinical study and future preclinical research. Ten skulls of adult peccaries were subjected to tomographic examination. The data obtained were processed via three-dimensional image reconstruction software (3D images). The reconstructions obtained from the neurocranium of the studied specimens allowed the identification and description of the following structures: nasal bone, frontal bone, parietal bones, incisor bone, maxillary bone, zygomatic bone, temporal bone, palatal bone, occipital bone, vomer bone, pterygoid bone, sphenoid bone, paranasal sinuses and orbit. Computed tomography proved to be an important diagnostic tool in the investigation of the skull of this species, allowing the acquisition of anatomical values not yet documented for the species in the literature.(AU)


O objetivo deste estudo foi avaliar as estruturas anatômicas dos crânios de catetos, a fim de se estabelecerem as bases para seu estudo clínico e futuras pesquisas pré-clínicas. Dez crânios de catetos adultos foram submetidos a exame tomográfico. Os dados obtidos foram introduzidos em um software de reconstrução de imagens tridimensionais (imagens em 3D). As reconstruções obtidas do neurocrânio dos espécimes estudados permitiram a identificação e a descrição das seguintes estruturas: osso nasal, osso frontal, ossos parietais, osso incisivo, osso maxilar, osso zigomático, osso temporal, osso palatino, osso occipital, osso vômer, osso pterigoide, osso esfenoide, seios paranasais e órbita. A tomografia computadorizada mostrou-se como uma ferramenta diagnóstica importante na investigação do crânio dessa espécie, permitindo a aquisição de valores anatômicos ainda não documentados para a espécie na literatura.(AU)


Subject(s)
Animals , Artiodactyla/anatomy & histology , Skull/anatomy & histology , Skull/diagnostic imaging , Tomography, X-Ray Computed/veterinary , Imaging, Three-Dimensional/veterinary , Printing, Three-Dimensional
2.
Article in English | LILACS, BBO | ID: biblio-1155002

ABSTRACT

ABSTRACT Objctive: To assess the soft tissue characteristics of Bangladeshi adults to formulate soft tissue 3D CT standards using Holdaway's (HA) and lip morphology (LM) analyses. Another aim of this study was to assess the gender dimorphism of Bangladeshi population. Material and Methods: One hundred and seventeen (Eighty-five men and Thirty-two women) Bangladeshi adults have obtained their computed tomography (CT) scan at the Radiology Department for normal diagnosis. Craniofacial deformities were undetected in all cases. The CT images were prepared by a 3D imaging programming software (Mimics 11.02 Materialise). Parameters from the identified landmark points were measured in 3D through this software. Results: Upper lip thickness (ULT) (vermillion UL-A point) measurement was significant in HA and in LM analyses, upper lip protrusion (ULP) (Ls to Sn-SPog) measurement has demonstrated significant difference among both genders, where p-value was less than 0.05. Mean measurements of Bangladeshi adults were relatively comparable except the face convexity (FC) when compared with the HA cephalometric soft tissue values. Conclusion: By using HA and LM analyses, 3D CT soft tissue standards were established for Bangladeshi adults. Measurements for all parameters have remained equivalent with the HA standard data apart from the FC measurement. This consequently may demonstrate that the Bangladeshi population retains a convex shape with a slight protrusive lip or retruded chin.


Subject(s)
Humans , Male , Female , Adult , Orthodontics, Corrective , Skull/diagnostic imaging , Diagnostic Imaging/instrumentation , Craniofacial Abnormalities/diagnostic imaging , Face/diagnostic imaging , Therapy, Soft Tissue , Bangladesh/epidemiology , Tomography, X-Ray Computed/instrumentation , Cross-Sectional Studies , Cross-Sectional Studies/methods , Retrospective Studies , Data Interpretation, Statistical , Sex Characteristics
3.
Int. j. morphol ; 38(6): 1591-1596, Dec. 2020. graf
Article in English | LILACS | ID: biblio-1134484

ABSTRACT

SUMMARY: Clinically, avian medicine still finds it very difficult to treat wild patients due to the lack of reliable information about their anatomy and physiological parameters that make comparative analyzes possible. Considering that computed tomography (CT) is one of the most viable alternatives in radiography of the head, we describe the comparative anatomy of the beak in the Ara ararauna and the Ramphastos toco through this imaging modality and macroscopy analysis, providing additional information about their conformation and topography for clinical exams. Adult specimens of each were dissected after the CT and beaks were removed for macroscopic analyses. The macroscopic and tomographic findings for both species confirm the similarities in beak morphology and the dietary peculiarities of each.The CT scan proved to be a useful tool to visualize internal structures of the skull through a detailed virtopsy of regions that are difficult to access by the usual necropsy with a scalpel.


RESUMEN: Debido a la escasa información de la anatomía y de los parámetros fisiológicos que hacen posible los análisis comparativos en la medicina aviar, clínicamente resulta muy difícil el tratamiento de estos animales. Considerando que la tomografía computarizada es una buena alternativa, estudiamos la anatomía comparativa del pico en Ara ararauna y Toco Toucan utilizando imágenes y un análisis de macroscopía. Estos métodos proporcionaron información adicional referente a su conformación y topografía para el trabajo clínico. Después de analizar la tomografía se disecaron las muestras de especímenes adultos y se retiraron los picos para un análisis macroscópico. Los hallazgos macroscópicos y tomográficos para ambas especies corroboraron la relación morfológica entre los picos y las peculiaridades dietéticas de cada uno. Se demostró además, que la tomografía computarizada es una herramienta útil para visualizar las estructuras internas del cráneo de las aves, a través de una virtopsia detallada en áreas de difícil acceso durante una necropsia habitual.


Subject(s)
Animals , Beak/anatomy & histology , Beak/diagnostic imaging , Birds/anatomy & histology , Anatomy, Comparative , Skull/anatomy & histology , Skull/diagnostic imaging , Tomography, X-Ray Computed
4.
Rev. cuba. invest. bioméd ; 39(1): e374, ene.-mar. 2020. tab
Article in Spanish | LILACS, CUMED | ID: biblio-1126576

ABSTRACT

Introducción: La anatomía ósea de las cavidades paranasales presenta múltiples variantes, que pueden ser causa o factor predisponente de enfermedad rinosinusal, entre las que se encuentran las asimetrías y las agenesias. Éstas pueden ser reparos de gran importancia en la cirugía endoscópica nasal y demandan atención médica con frecuencia. Objetivo: Determinar las variaciones anatómicas de los senos frontales en los pacientes con cráneos braquicéfalos y que no presentaron diagnóstico de enfermedad rinosinusal. Métodos: Se realizó un estudio observacional, descriptivo y transversal, donde fueron estudiados los diámetros transversales y longitudinales de los senos frontales a través de radiografías de cráneo AP en 28 pacientes con cráneos braquicéfalos, en el servicio de imagenología del Hospital Juan Bruno Zayas Alfonso en los meses de enero y febrero de 2019. Resultado: Se identificaron las principales variaciones de los senos frontales a través de radiografías de cráneo y su comportamiento según variables epidemiológicas. Conclusiones: Predominó los enfermos (9) en el rango etáreo de 19-29 años, lo que representa un 32,1 por ciento, hubo un ligero predominio de los hombres con respecto a las mujeres, 10 (35,7 por ciento) pacientes presentaron agenesia bilateral y 3 (10,7 por ciento) agenesia unilateral izquierda. Las magnitudes de las cavidades derechas fueron mayores que las izquierdas y los senos frontales estudiados son asimétricos por su tamaño y posición(AU)


Introduction: The bone anatomy of paranasal cavities presents a large number of variants which may be the cause of or predisposing factor for rhinosinus disease, among which are asymmetry and agenesis. These may be very important hurdles in nasal endoscopic surgery and often require medical care. Objective: Determine the anatomical variations in the frontal sinuses of patients with brachycephalic skulls not diagnosed with rhinosinus disease. Methods: A cross-sectional observational descriptive study was conducted of frontal sinus longitudinal and transverse diameters of frontal sinuses based on AP skull radiographs of 28 patients with brachycephalic skulls attending the imaging service of Juan Bruno Zayas Alfonso Hospital from January to February 2019. Result: Identification was made of the main frontal sinus variations in skull radiographs and their behavior according to epidemiological variables. Conclusions: The 19-29 years age group prevailed, with 9 patients (32.1 percent). There was a slight predominance of men versus women. Ten (35.7 percent) patients had bilateral agenesis and 3 (10.7 percent) had unilateral left agenesis. The magnitudes for right cavities were greater than those for left cavities. The frontal sinuses studied were asymmetrical in terms of size and position(AU)


Subject(s)
Craniosynostoses/complications , Frontal Sinus/anatomy & histology , Skull/diagnostic imaging , Epidemiologic Factors , Epidemiology, Descriptive , Cross-Sectional Studies
5.
Article in Chinese | WPRIM | ID: wpr-879785

ABSTRACT

OBJECTIVE@#To study the safety and efficacy of magnetic resonance imaging (MRI)-compatible incubator in cranial MRI examination for neonates.@*METHODS@#A total of 120 neonates who were hospitalized in three hospitals and needed to undergo MRI examination were randomly divided into a control group and an experimental group, with 60 neonates in each group. The neonates in the experimental group were transferred with MRI-compatible incubator and underwent cranial MRI examination inside the MRI-compatible incubator, and those in the control group were transferred using a conventional neonatal transfer incubator and then underwent MRI examination outside the incubator. The two groups were compared in terms of the primary efficacy index (total examination time), secondary efficacy indices (times of examination, MRI completion rate on the first day of use), and safety indices (incidence rate of adverse events and vital signs).@*RESULTS@#There were no significant differences in total examination time, times of examination, and MRI completion rate on the first day of use between the two groups (@*CONCLUSIONS@#The use of MRI-compatible incubator does not significantly shorten the examination time of cranial MRI, but it does provide a relatively stable environment for examination with acceptable safety. There is a need for further studies with a larger population.


Subject(s)
Humans , Incubators, Infant , Infant, Newborn , Magnetic Resonance Imaging/instrumentation , Prospective Studies , Skull/diagnostic imaging
6.
J. appl. oral sci ; 28: e20190435, 2020. tab, graf
Article in English | LILACS, BBO | ID: biblio-1056593

ABSTRACT

Abstract Objective To quantify the bone volume that can be safely withdrawn from 3 donor sites: (1) the mandibular symphysis, (2) the oblique mandibular line and (3) the skullcap. Methodology For the symphysis, 200 tomographic exams were evaluated by the extension of the anterior loop of mental foramen, by the nerve, by the distance of the foramens, by the distance between the vestibular cortical and the lingual plates and by the distance between the apexes, or lower anterior teeth, and the mandibular base, using the "distance" tool of the I-CAT Vision, in the panoramic and parasagittal reformations. For the oblique line, 70 TCFC exams were analyzed retrospectively in panoramic and parasagittal reformations, evaluating the thickness of the vestibular cortical and the distance between the cortical and the mandibular canal. For the cranial bone, a hexagonal donor site located in parietal area was considered. Results The average dimensions of the bone blocks that can be safely removed from the region of the mandibular symphysis are: 32.27 mm in length, 4.87 mm in height and 4 mm in thickness, providing a volume of 628.61 mm3 available for grafting. In the oblique line, the available bone volume for grafting was 859.61 mm3. In the region of the cranial vault, multiplying the average bone thickness by the area of the hexagon, an average volume of 2,499 mm3 was obtained. Conclusions Comparing the donor sites, the bone availability in the cranial vault is 3 times greater than in the mandibular posterior region, and at least 2 times greater than in the mandibular symphysis.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Skull/transplantation , Bone Transplantation/methods , Cone-Beam Computed Tomography/methods , Transplant Donor Site , Mandible/transplantation , Skull/diagnostic imaging , Retrospective Studies , Anatomic Landmarks , Transplant Donor Site/diagnostic imaging , Cortical Bone/transplantation , Cortical Bone/diagnostic imaging , Mandible/diagnostic imaging , Medical Illustration
7.
Rev. bras. neurol ; 55(3): 29-32, jul.-set. 2019. ilus
Article in Portuguese | LILACS | ID: biblio-1022909

ABSTRACT

A sinusite é uma causa rara de infecção intracraniana, sendo responsável por 2,4% dos casos em pacientes jovens, e tem como a complicação intracraniana mais frequente o empiema subdural (ESD). Descrevemos um caso raro de um adolescente imunocompetente de 16 anos que evoluiu com confusão mental, rebaixamento do nível de consciência, anisocoria, hemiparesia à direita, afasia e febre. Tomografa computadorizada confirmou ESD, e paciente foi submetido à avaliação laboratorial e abordagem clínico-cirúrgica para tratamento do quadro.


Sinusitis is a rare cause of intracranial infection, accounting for 2.4% of cases in young patients. The most frequent intracranial complication is subdural empyema (SDE). We describe a rare case of a 16-year-old immunocompetent adolescent who developed mental confusion, lowered consciousness, anisocoria, right hemiparesis, aphasia, and fever. Computed tomography confirmed SDE, and the patient underwent laboratory evaluation and clinical-surgical approach for treatment of the condition.


Subject(s)
Humans , Male , Adolescent , Empyema, Subdural/diagnosis , Empyema, Subdural/etiology , Frontal Sinusitis/complications , Frontal Sinusitis/diagnosis , Frontal Sinusitis/drug therapy , Recurrence , Skull/diagnostic imaging , Empyema, Subdural/surgery , Tomography, X-Ray Computed/methods , Anti-Bacterial Agents/therapeutic use
8.
Int. j. morphol ; 37(2): 724-729, June 2019. tab, graf
Article in Spanish | LILACS | ID: biblio-1002284

ABSTRACT

La influencia de la función respiratoria en el desarrollo de estructuras orofaciales y postura craneocervical ha sido ampliamente discutida. El objetivo del estudio fue comparar valores cefalométricos de la región craneocervical e hioidea en sujetos con respiración nasal y oral. Se incluyeron sujetos de entre 18 y 27 años, de ambos sexos, donde 20 presentaban diagnóstico de respiración oral y 20 no presentaban esta alteración; mediante telerradiografía lateral de cabeza y cuello se realizó análisis cefalométrico craneocervical de Rocabado y aplicación de la técnica de Penning, obteniendo medidas craneocervicales e hioideas, dimensión anterior nasofaríngea y curvatura cervical. Para el análisis estadístico se utilizó la prueba de normalidad Shapiro-Wilk y la prueba T para muestras independientes, considerando un valor de p <0,05 para obtener diferencias significativas; en aquellos parámetros en donde no se presentó distribución normal se aplicó la prueba U de Mann-Whitney. No se encontraron diferencias significativas entre los grupos de estudio y los valores cefalométricos analizados, a excepción de la distancia entre la base del hueso occipital y el arco posterior del atlas (p=0,03). Existen limitadas diferencias cefalométricas entre sujetos con respiración oral y respiración nasal, no asociándose el espacio aéreo nasofaríngeo con las modalidades de respiración estudiadas. Deben ser consideradas condiciones de morfología facial o mandibular, para determinar más adecuadamente la influencia de los parámetros cefalométricos en el diagnóstico del modo respiratorio en estudios futuros.


The influence of respiratory function on the development of orofacial structures and craniocervical posture has been widely discussed. The objective of the study was to compare cephalometric values of the craniocervical and hyoid region in subjects with nasal and oral respiration. Subjects between 18 and 27 years of age, of both sexes, were included, where 20 presented oral breathing diagnosis and 20 did not present this alteration; using lateral telerradiography of the head and neck, craniocervical cephalometric analysis was performed of Rocabado and Penning technique was applied, obtaining craniocervical and hyoid measurements, anterior nasopharyngeal dimension and cervical curvature. For the statistical analysis we used the Shapiro-Wilk normality test and the T test for independent samples, considering a value of p <0.05 to obtain significant differences; in those parameters where no normal distribution was presented, the MannWhitney U test was applied. No significant differences were found between the study groups and the cephalometric values ??analyzed, except for the distance between the base of the occipital bone and the posterior arch of the atlas (p=0.03). There are limited cephalometric differences between subjects with oral breathing and nasal breathing, with no association of the nasopharyngeal air space with the breathing modalities studied. Conditions of facial or mandibular morphology should be considered in order to determine more adequately the influence of cephalometric parameters in the diagnosis of the respiratory mode in future studies.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Young Adult , Skull/anatomy & histology , Cervical Vertebrae/anatomy & histology , Hyoid Bone/anatomy & histology , Mouth Breathing , Posture , Skull/diagnostic imaging , Case-Control Studies , Nasal Obstruction , Cervical Vertebrae/diagnostic imaging , Nasopharynx/anatomy & histology , Cephalometry , Teleradiology , Observational Study , Hyoid Bone/diagnostic imaging
9.
Clinics ; 74: e781, 2019. tab, graf
Article in English | LILACS | ID: biblio-989636

ABSTRACT

OBJECTIVES: The halo ring can be applied in children, through skeletal traction or a halo vest device, to treat many cervical spine pathologies, including traumatic injuries and pathologies related to deformities. However, the procedure is associated with various complications, such as infection, pin loosening, and respiratory and neurological problems. Although widely studied in adults, the best pin insertion site in children and the correlations of pin insertion sites with outcomes and complications have not been completely elucidated. This study aimed to determine alternative pin placement sites based on a morphological analysis of the infant skull by computerized tomography (CT). METHODS: An analytical-descriptive study was performed using 50 CT scans from children. The Wilcoxon and Friedman tests were used. RESULTS: A linear and directly proportional relation was found between cranial thickness and patient age. The average thicknesses of the anterior points across all ages analyzed ranged from 4.16 mm to 4.98 mm. The thicknesses of the posterior points varied from 3.94 mm to 4.27 mm. Within each age range, points 1 cm above the standard insertion sites had thicknesses similar to those of the standard sites, and points 2 cm above the standard insertion sites had thicknesses greater than those of the standard sites. CONCLUSIONS: The cranial thickness at all points increases linearly with age. Points 1 and 2 cm above the standard insertion sites are viable alternatives for the placement of halo pins. Preoperative CT can aid in choosing the best positioning sites for pins in the skull.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adolescent , Orthotic Devices/standards , Skull/diagnostic imaging , Bone Nails/standards , Tomography, X-Ray Computed/methods , Skull/anatomy & histology , Preoperative Care/methods , Cervical Vertebrae/injuries , Age Factors , Imaging, Three-Dimensional/methods
10.
Dental press j. orthod. (Impr.) ; 23(6): 16-29, Nov.-Dec. 2018. tab, graf
Article in English | LILACS | ID: biblio-975033

ABSTRACT

ABSTRACT Objective: To evaluate topographic and temporal aspects of premaxillary bone and premaxillary-maxillary suture, since they are fundamental anatomical elements little explored clinically. Methods: 1,138 human dry skulls were evaluated, of which 116 (10.19%) of the specimens were children, and 1,022 (89.81%) were adults. The skulls were photographed and the percentage of premaxillary-maxillary suture opening was determined. Subsequently the data were tabulated and submitted to statistical analysis, adopting a level of significance of 5%. Results: The progression of premaxillary suture closure from birth to 12 years of age was 3.72% per year. In 100% of the skulls up to 12 years, the premaxillary-maxillary suture open in the palatal region was observed, while 6.16% of adults presented different degrees of opening. Conclusions: The premaxilla exists in an independent way within the maxillary complex and the presence of the premaxilla-maxillary suture justifies the success of anteroposterior expansions to stimulate the growth of the middle third of the face, solving anatomical and functional problems.


RESUMO Objetivo: avaliar aspectos topográficos e temporais do osso pré-maxilar e da sutura pré-maxilar/maxilar, por serem elementos anatômicos fundamentais pouco explorados clinicamente. Métodos: foram avaliados 1.138 crânios secos humanos, sendo 116 (10,19%) dos espécimes crianças e 1.022 (89,81%) adultos. Os crânios foram fotografados e determinou-se a porcentagem de abertura da sutura pré-maxilar/maxilar. Posteriormente, os dados foram tabulados e submetidos a análise estatística, adotando-se nível de significância de 5%. Resultados: a progressão de fechamento da sutura pré-maxilar/maxilar do nascimento aos 12 anos de idade foi de 3,72% ao ano. Em 100% dos crânios até 12 anos, observou-se a sutura pré-maxilar/maxilar aberta na região palatina, enquanto 6,16% dos adultos apresentavam diferentes graus. Conclusões: a pré-maxila existe de forma independente dentro do complexo maxilar e a presença da sutura pré-maxilar / maxilar justifica o sucesso de expansões anteroposteriores para estimular o crescimento do terço médio da face, solucionando problemas anatômicos e funcionais.


Subject(s)
Humans , Infant, Newborn , Infant , Child, Preschool , Child , Adult , Skull/anatomy & histology , Skull/growth & development , Cranial Sutures/anatomy & histology , Cranial Sutures/growth & development , Maxilla/anatomy & histology , Maxilla/growth & development , Maxillofacial Development/physiology , Orthodontics, Corrective , Palate/anatomy & histology , Palate/growth & development , Palate/diagnostic imaging , Skull/diagnostic imaging , Age Factors , Maxilla/diagnostic imaging
11.
Rev. bras. oftalmol ; 77(5): 289-291, set.-out. 2018. tab, graf
Article in English | LILACS | ID: biblio-977864

ABSTRACT

Abstract We present a case study of Tolosa-Hunt syndrome, a rare idiopathic disease, that is characterized by painful ophthalmoplegia of strong intensity, generally affecting the third cranial nerve, and, less frequently, the fourth or the sixth cranial nerves. Usually, there is no visual impairment. The treatment is based on corticosteroids with satisfactory results in most cases although recurrences can occur at intervals from months to years. In our case, the patient presented sudden pain periorbital associated with cranial nerves involvement, which have an excellent outcome after treatment with corticosteroids, with no relapses until today.


Resumo Nós apresentamos um caso de Síndrome de Tolosa-Hunt, uma doença idiopática rara, caracterizada por oftalmoplegia dolorosa, de forte intensidade, geralmente afetando o terceiro par craniano, e, menos frequentemente, o quarto e/ou o sexto par. Geralmente, não há acometimento visual. O tratamento é feito com base em corticóides com resultados satisfatórios na maior parte dos casos, embora recorrências possam ocorrer após meses a anos. Relatamos caso de paciente masculino de 36 anos, com diagnóstico prévio de sífilis congênita e esquizofrenia, com dor periocular súbita associada com envolvimento de pares cranianos, que teve melhora total após vigência de corticoterapia, sem recorrências até a presente data.


Subject(s)
Humans , Male , Adult , Methylprednisolone/administration & dosage , Magnetic Resonance Imaging , Tolosa-Hunt Syndrome/diagnosis , Tolosa-Hunt Syndrome/drug therapy , Orbit/diagnostic imaging , Schizophrenia , Skull/diagnostic imaging , Syphilis, Congenital , Blepharoptosis/etiology , Visual Acuity , Cavernous Sinus/diagnostic imaging , Mydriasis , Ophthalmoplegia/etiology , Tolosa-Hunt Syndrome/complications , Diagnosis, Differential
13.
Rev. argent. radiol ; 82(3): 107-113, set. 2018. ilus, graf, tab
Article in Spanish | LILACS | ID: biblio-977271

ABSTRACT

Objetivo Determinar la frecuencia de las complicaciones observadas durante la trombectomía en el ictus isquémico agudo. Materiales y Métodos Se revisó de forma retrospectiva las trombectomías realizadas en nuestra institución cuando los ictus isquémicos tuvieron una indicación de tratamiento endovascular. Se registraron los diferentes dispositivos utilizados en ese periodo de tiempo y si presentaron relación con el desarrollo de las complicaciones inmediatas mediante arteriografía. Resultados De un total de 228 casos, se registraron complicaciones en el 16,6% de los casos. Se identificaron embolias (n » 31), hemorragias subaracnoideas (n » 2), hemorragia gangliobasal (n » 1), vasoespasmo (n » 1), disección (n » 1) y peusoaneurismas (n » 2). La embolia a nuevos territorios se presentó solo en 5 casos. Discusión El tratamiento endovascular ha demostrado ser efectivo para la recanalización en oclusión de gran vaso. El uso de dispositivos presume un riesgo por la manipulación de los vasos. Conclusión La embolia fue la complicación más frecuente. El tratamiento endovascular en el ictus genera un desenlace clínico favorable de los pacientes, al mismo tiempo, el bajo porcentaje de complicaciones que encontramos no suponen una afectación negativa en el desenlace final.


Purpose To determine the complications we observed during thrombectomy in acute ischemic stroke. Materials and Methods We reviewed retrospectively thrombectomies performed in our institution when endovascular treatment for stroke was done. The different devices used in this period of time were recorded and we determined if these were related to the development of immediate complications duringthe procedure visualized in arteriography. Results We had 228 cases, complications were found in 16.6% of the cases. Embolisms (n » 31), subarachnoid hemorrhages (n » 2), gangliobasal hemorrhage (n » 1), vasospasm (n » 1), dissection (n » 1) and peusoaneurysms (n » 2) were identified. 5 embolisms happened to new territories during thrombectomy. Discussion Endovascular treatment has been shown to be effective for recanalization in large vessel occlusion. The use of devices presumes a risk for the manipulation of the vessels. Conclusion Embolism was the most frequent complication. The endovascular treatment in the acute stroke produces a favorable clinical outcome of the patients and we found a low percentage of complications that would not suppose a negative affectation in the final outcome.


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Aged, 80 and over , Thrombectomy/methods , Stroke/complications , Stroke/diagnostic imaging , Skull/diagnostic imaging , Spain , Vascular Diseases/complications , Catheterization/methods , Catheterization/statistics & numerical data , Carotid Artery, Internal/diagnostic imaging , Tomography, X-Ray Computed , Stents/statistics & numerical data , Retrospective Studies , Multicenter Study , Thrombectomy/statistics & numerical data , Embolism , Hemorrhage
14.
Medicina (B.Aires) ; 78(supl.2): 108-112, set. 2018. ilus, tab
Article in Spanish | LILACS | ID: biblio-955024

ABSTRACT

Las alteraciones de la forma del cráneo han aumentado en las últimas décadas a expensas de las plagiocefalias, como consecuencia de las recomendaciones de la Academia Americana de Pediatría de dormir al lactante en decúbito supino. El clínico debe diferenciar entre plagiocefalia posicional y craneosinostosis, ya que la conducta terapéutica será potencialmente neuroquirúrgica de comprobar una sinostosis craneal. Si bien la tomografía de cráneo tridimensional con ventana ósea es el estudio de mayor sensibilidad y especificidad diagnóstica, la mayoría de los casos pueden confirmarse por la clínica, reservando la radiografía simple o de preferencia la ecografía con enfoque de suturas para casos dudosos. Las craneosinostosis deben derivarse tempranamente a un equipo craneofacial para definir la indicación, oportunidad y técnica quirúrgica más adecuada para evitar futuras complicaciones neurocognitivos y psicosociales. Los niños con plagiocefalias posicionales, independientemente del tratamiento de la deformidad craneal, pueden tener más riesgo de retraso del desarrollo motor. Para su corrección se sugiere reposicionamiento y fisioterapia en formas leves a moderadas, reservando el uso de ortésis craneal en formas graves.


In the last decades alterations in the skull shape have increased at the expense of plagiocephaly, as consequence of the American Academy of Pediatrics recommendations to sleep the infant in the supine position. The clinician must differentiate between positional plagiocephaly and craniosynostosis, since if a cranial synostosis is proven, the therapeutic behavior will be potentially neurosurgical. Although three-dimensional skull tomography with bone window is the study of greater sensitivity and diagnostic specificity, the majority of cases can be confirmed by the clinic, reserving the radiography or ultrasound with a suture approach for doubtful cases. Craniosynostosis must be early referral to a craniofacial team to define the indication, opportunity and most appropriate surgical technique, in order to avoid future neurocognitive and psychosocial complications. Children with positional plagiocephaly regardless of the treatment of cranial deformity may have a higher risk of motor development delay. For correction, repositioning and physiotherapy are suggested in mild to moderate forms, reserving the use of cranial orthesis in severe forms.


Subject(s)
Humans , Child, Preschool , Skull/diagnostic imaging , Craniosynostoses/diagnostic imaging , Plagiocephaly, Nonsynostotic/diagnostic imaging , Skull/surgery , Craniosynostoses/surgery , Plagiocephaly, Nonsynostotic/surgery , Diagnosis, Differential
15.
Rev. Círc. Argent. Odontol ; 76(226): 5-10, jul. 2018. ilus, tab, graf
Article in Spanish | LILACS | ID: biblio-1121934

ABSTRACT

Introducción: Los problemas posturales se inician, en la mayoría de los casos, en la infancia, por lo tanto en período de crecimiento una actitud postural alterada compromete el equilibrio cefálico y la posición de la mandíbula pudiendo originar malocluciones. Objetivo: Analizar si existe relación entre el ángulo cráneo-cervical y el patrón esqueletal en una población infantil. Material y métodos: Se evaluaron 70 pacientes con telerradiografía de cráneo de perfil con exámenes cefalométrico de Ricketts con patrón esqueletal de clase I, II y III (Campo II relación cráneo-mandibular, factor 7 convexidad) y el cefalograma de Rocabado, utilizando el ángulo cráneo-vertebral. Resultado: Tanto el sexo como el patrón esqueletal son significativos, su interacción no lo es. A su vez, la edad no resulta significativa. Conclusión: En el presente estudio se encontró que existe relación significativa entre el ángulo cráneo-cervical y el patrón esqueletal (AU)


Introduction: Postural problems begin in most cases, in childhood, therefore during growth an altered postural attitude compromises the cephalic balance and jaw position causing posible malocclucion. Objective: It is to present the correlation between the skull and cervical angle skeletal pattern in a child population. Material and methods: 70 patients were evaluated with teleradiography cephalometric profile tests Ricketts skeletal pattern with class I, II and III (Field II craniomandibular relationship, Factor 7 convexity) and cephalogram Rocabado, using the craniovertebral angle. Result: Both sex and skeletal pattern are significant and their interaction is not. In turn, age is not significant. Conclusion: In the present study it was found that there is a statistically significant relationship between the cranial-cervical angle, and the skeletal pattern (AU)


Subject(s)
Humans , Male , Female , Child , Skull/diagnostic imaging , Cervical Vertebrae/diagnostic imaging , Cephalometry/methods , Malocclusion/diagnostic imaging , Argentina , Posture/physiology , Schools, Dental , Factor VII , Sex Factors , Analysis of Variance , Maxillofacial Development
17.
Rev. Bras. Saúde Mater. Infant. (Online) ; 18(1): 103-112, Jan.-Mar. 2018. tab
Article in English | LILACS | ID: biblio-1013075

ABSTRACT

Abstract Objectives: to assess the interrater reliability of the Saint-Anne Dargassies Scale in assessing neurological patterns of healthy preterm newborns. Methods: twenty preterm newborns met the inclusion criteria for participation in this prospective study. The neurologic examination was performed using the Saint-Anne Dargassies Scale, showing normal serial cranial ultrasound examination. In order to test the reliability, the study was structured as follows: group I (rater 1/physiotherapist; rater 2/neonatologist); group II (rater 3/physiotherapist; rater 4/child neurologist) and the gold standard (expert and professor in pediatric neurology). Results: high interrater agreement was observed between groups I - II compared with the gold standard in assessing postural pattern (p<0.01). Regarding the assessment ofprimitive reflexes, greater agreement was observed in the evaluation of palmar grasp reflex and Moro reflex (p< 0.01) for group I compared with the gold standard. An analysis of tone demonstrated heterogeneous agreement, without compromising the reliability of the scale. The probability of equality between measurements of head circumference in the two groups, compared with the gold standard, was observed. Conclusions: the Saint-Anne Dargassies Scale demonstrated high reliability and homogeneity with significant power of reproducibility and may be capable to identify preterm newborns suspected of having neurological deficits.


Resumo Objetivos: avaliar a confiabilidade inter-observadores na avaliação do padrão neurológico de recém-nascidos pré-termo saudáveis pela Escala de Saint-Anne Dargassies. Métodos: vinte recém-nascidos pré-termos foram selecionados com base nos critérios de inclusão para participarem deste estudo prospectivo. O exame neurológico foi realizado utilizando a Escala de Saint-Anne Dargassies e os exames de ultra-som craniano seriados normais. Para testar a confiabilidade da escala o estudo foi estruturado da seguinte forma: grupo I (examinador 1 /fisioterapeuta; examinador 2 / neonatologista); grupo II (avaliador 3 /fisioterapeuta; avaliador 4 / neurologista infantil) e o padrão-ouro (expert e professor em neurologia pediátrica). Resultados: foi observado uma concordância alta inter-observadores entre os grupos I -II em comparação com o padrão ouro na avaliação padrão postural (p<0,01). Em relação à avaliação dos reflexos primitivos, observou-se maior concordância na avaliação do reflexo palmar e do reflexo de Moro (p<0,01) para o grupo I em comparação com o padrão-ouro. Uma análise do tônus demonstrou acordo heterogêneo, sem comprometer a confiabilidade da escala. Observou-se a probabilidade de igualdade entre as medidas do perímetro cefálico nos dois grupos em comparação com o padrão-ouro. Conclusões: a Escala de Saint-Anne Dargassies demonstrou alta confiabilidade e homogeneidade com poder significativo de reprodutibilidade podendo identificar recém-nascidos pré-termo com suspeita de déficit neurológico.


Subject(s)
Humans , Infant, Newborn , Infant, Premature , Neonatal Screening , Data Accuracy , Neurologic Examination , Neurologic Manifestations , Skull/diagnostic imaging , Reflex, Startle , Cephalometry
19.
Rev. bras. neurol ; 53(3): 47-49, jul.-set. 2017. ilus
Article in Portuguese | LILACS | ID: biblio-876879

ABSTRACT

Paralisia da mirada lateral por hemorragia pontina, secundária a cavernoma, o qual apresenta prevalência estimada de 0,4% a 0,6%. O risco de sangramento de tal entidade é considerado baixo (0,1 a 3,1% ao ano). Relatamos o caso de paciente feminino, 38 anos, admitida no setor de emergência com quadro de cefaleia, vertigem, hipertensão (PA 200/120mmHg), rebaixamento do nível de consciência (Glasgow 13) e paralisia do olhar conjugado lateral à direita, com 24 horas de evolução. A tomografia de crânio revelou hemorragia pontina e a angiorressonância evidenciou a presença de cavernoma no tegmento pontino. Foi optado por tratamento conservador e a paciente evoluiu com síndrome do encarceramento (Locked-in syndrome) por piora da hemorragia e edema perilesional. Os cavernomas são malformações vasculares que podem cursar assintomáticas e passar despercebidas pelos exames de imagem até o evento hemorrágico. Apesar de raro, quando este ocorre no tronco encefálico pode apresentar alta morbimortalidade. Isso reforça a importância de se avaliar a chance de sangramento dessas lesões e instituir a melhor abordagem para cada caso. (AU)


Horizontal gaze palsy due to hemorrhage of a pontine cavernous malformation, which prevalence ranges from 0.4% to 0.6%. The risk of bleeding is considered low (0.1 to 3.1% per year). It is reported a case of a 38-year-old woman admitted to the emergency department with headache, vertigo, hypertension (200/120mmHg), decreased level of consciousness (Glasgow 13) and horizontal gaze palsy to the right side, that started suddenly 24h before admission. CT scan revealed a pontine hemorrhage and MRI showed the presence of a cavernous malformation in the pontine tegmentum. Conservative treatment was chosen and the patient developed locked-in syndrome due to worsening bleeding and perilesional edema. Cavernoma are vascular malformations that can be asymptomatic and remain undetected by imaging until the hemorrhagic event. Although rare, when bleeding occurs in the brain stem, it can cause high morbidity and mortality. This report reinforces the importance of evaluation these injuries' bleeding risk and establish the best approach for each case. (AU)


Subject(s)
Humans , Female , Adult , Ocular Motility Disorders/diagnosis , Cerebral Hemorrhage/complications , Cerebral Hemorrhage/diagnosis , Ophthalmoplegia/etiology , Hemangioma, Cavernous , Neurologic Examination/methods , Skull/diagnostic imaging , Medical Records , Magnetic Resonance Angiography
20.
Int. j. morphol ; 35(1): 265-272, Mar. 2017. ilus
Article in English | LILACS | ID: biblio-840965

ABSTRACT

The panoramic radiograph constitutes the "gold standard" for any clinical evaluation in dentistry. It has been universally accepted that it has a global distortion of 25 % due to magnification. The present study was carried out to determine more precise percentages of distortion, and to find out whether the distortion was due to magnification or minimization. Thirty skulls with their mandibles were divided by two horizontal and four vertical planes in ten quadrants. Wires of different lengths were fixed in each of these quadrants. A panoramic radiograph was taken for each skull. The lengths of the wires measured in the images (distorted value) were compared to the actual lengths of the wires (real value). The concordance correlation coefficient was calculated. Due to high bone density, in the upper lateral quadrants (1 and 5) no measurements could be obtained. In the intermediate upper quadrants (2 and 4) and in the median lower quadrant (8), the horizontal measurements were minimized, while in the intermediate inferior quadrants (7 and 9) and in the lateral inferior quadrants (6 and 10), the horizontal measurements were magnified. In both the upper and the lower quadrants (2, 3, 4, 6, 7, 8, 9, 10) all the vertical measurements were magnified. The percentage of distortion in each quadrant for the horizontal and vertical measurements was reported. The percentage of distortion in a panoramic radiograph of the face varies from one region to another and can be due to either magnification or minimization.


La radiografía panorámica constituye el "gold standard" para cualquier valoración clínica en odontología. Universalmente ha sido aceptado que esta radiografía presenta una distorsión por magnificación en cualquier región de 25 %. La presente investigación determina 10 diferentes regiones del cráneo divulgando porcentajes de distorsión más precisos y para aclarar si la distorsión fue por magnificación o por minimización. Treinta cráneos con sus mandíbulas fueron divididos por dos planos horizontales y cuatro verticales en 10 cuadrantes y en cada una de estas se fijaron alambres de acero de diferentes longitudes en posición vertical y horizontal. Se tomó una radiografía panorámica a cada cráneo y con un calibrador digital se midieron los alambres sobre los cráneos (valor real) y sobre las radiografías (valor distorsionado). El Coeficiente de Correlación de Concordancia fue calculado. Debido a la alta densidad ósea, en los cuadrantes laterales superiores (1 y 5) las medidas no pudieron ser obtenidas. En los cuadrantes superiores intermedios (2 y 4) y en el cuadrante inferior mediano (8) las medidas horizontales son minimizadas, mientras en los cuadrantes inferiores intermedios (7 y 9) y en los cuadrantes inferiores laterales (6 y 10) las medidas horizontales son magnificadas. Para las medidas verticales en cualquiera de los cuadrantes superiores e inferiores (2, 3, 4, 6, 7, 8, 9, 10) todas las medidas son magnificadas. El porcentaje de distorsión en cada cuadrante para la medida horizontal y vertical es reportada. El porcentaje de distorsión en la radiografía panorámica varía desde una región a otra de la cara y puede ser de magnificación o minimización.


Subject(s)
Humans , Mandible/anatomy & histology , Mandible/diagnostic imaging , Radiography, Panoramic , Skull/anatomy & histology , Skull/diagnostic imaging , Cephalometry , Cross-Sectional Studies
SELECTION OF CITATIONS
SEARCH DETAIL