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1.
Neuroimage ; 84: 1053-60, 2014 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-24064070

RESUMEN

The cascade model of cognitive control, mostly relying on functional neuroimaging studies, stipulates that the lateral frontal cortex (LFC) is organized as a cascade of executive processes involving three levels of cognitive control, implemented in distinct LFC areas from the premotor to the anterior prefrontal regions. The present experiment tested this model in patients with LFC lesions and studied the hierarchy of executive functions along the caudo-rostral axis, i.e. the respective roles of the different LFC areas in the control of behavior. Voxel-based lesion-symptom mapping and region of interest group analyses were conducted in 32 patients with focal LFC lesions who performed cognitive tasks assessing the cascade model. We first showed that three different LFC areas along the caudo-rostral axis subserved three distinct control levels, whose integrity is necessary for adaptive behavior. Second, we found that prefrontal cognitive control has an asymmetric organization: higher control processes involving more anterior prefrontal regions rely on the integrity of lower control processes in more posterior regions, while lower control processes can operate irrespective of the integrity of higher control processes. Altogether, these findings support a caudo-rostral cascade of executive processes from premotor to anterior prefrontal regions.


Asunto(s)
Cognición/fisiología , Función Ejecutiva/fisiología , Corteza Prefrontal/fisiología , Femenino , Lóbulo Frontal/patología , Lóbulo Frontal/fisiología , Humanos , Procesamiento de Imagen Asistido por Computador , Imagen por Resonancia Magnética , Masculino , Persona de Mediana Edad
2.
Neurochirurgie ; 63(4): 308-313, 2017 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-28882599

RESUMEN

OBJECTIVE: The right "non-dominant" temporo-parietal junction is usually not considered as a highly eloquent area. This contrasts with its mirrored left "dominant" counterpart, which is known as highly eloquent regarding language function. The question arises about which functions should be monitored when operating lesions of the right temporo-parietal junction under awake conditions. METHODS: We report the case of a patient who underwent a surgical resection of a glioma located in the right temporo-parietal junction. Cognitive evaluations were performed preoperatively and 4 months after surgery, as well as resting state fMRI and diffusion-based tractography. RESULTS: Long-term postoperative cognitive examination revealed an important deterioration of cognitive control abilities, especially regarding set-shifting abilities as measured by Trail making test part B. Based on pre- and postoperative resting state fMRI and diffusion-based tractography, we demonstrate that surgical resection massively impacted structural and functional connectivity of the right fronto-parieto-temporal network, a network that is classically involved in cognitive control, reasoning and working memory. CONCLUSION: This case clearly illustrates how a white matter focal lesion can generate a neuropsychological deficit by remotely disconnecting distant cortical areas belonging to a functional network. Furthermore, our observation strongly supports the use of intraoperative cognitive control tests during surgery of the right temporo-parietal junction and promote the interest of pre and postoperative resting state functional connectivity to explore the potential mechanisms causing cognitive deficits.


Asunto(s)
Neoplasias Encefálicas/psicología , Neoplasias Encefálicas/cirugía , Trastornos del Conocimiento/fisiopatología , Glioma/psicología , Glioma/cirugía , Procedimientos Neuroquirúrgicos/efectos adversos , Adulto , Neoplasias Encefálicas/diagnóstico por imagen , Neoplasias Encefálicas/fisiopatología , Trastornos del Conocimiento/etiología , Imagen de Difusión Tensora , Femenino , Glioma/diagnóstico por imagen , Glioma/fisiopatología , Humanos , Monitorización Neurofisiológica Intraoperatoria , Imagen por Resonancia Magnética , Red Nerviosa/fisiopatología , Plasticidad Neuronal/fisiología , Sustancia Blanca/fisiopatología
3.
Brain Struct Funct ; 221(3): 1751-66, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25682261

RESUMEN

In neuroscience, there is a growing consensus that higher cognitive functions may be supported by distributed networks involving different cerebral regions, rather than by single brain areas. Communication within these networks is mediated by white matter tracts and is particularly prominent in the frontal lobes for the control and integration of information. However, the detailed mapping of frontal connections remains incomplete, albeit crucial to an increased understanding of these cognitive functions. Based on 47 high-resolution diffusion-weighted imaging datasets (age range 22-71 years), we built a statistical normative atlas of the frontal lobe connections in stereotaxic space, using state-of-the-art spherical deconvolution tractography. We dissected 55 tracts including U-shaped fibers. We further characterized these tracts by measuring their correlation with age and education level. We reported age-related differences in the microstructural organization of several, specific frontal fiber tracts, but found no correlation with education level. Future voxel-based analyses, such as voxel-based morphometry or tract-based spatial statistics studies, may benefit from our atlas by identifying the tracts and networks involved in frontal functions. Our atlas will also build the capacity of clinicians to further understand the mechanisms involved in brain recovery and plasticity, as well as assist clinicians in the diagnosis of disconnection or abnormality within specific tracts of individual patients with various brain diseases.


Asunto(s)
Envejecimiento , Encéfalo/anatomía & histología , Encéfalo/fisiología , Lóbulo Frontal/anatomía & histología , Lóbulo Frontal/fisiología , Adulto , Anciano , Atlas como Asunto , Imagen de Difusión por Resonancia Magnética/métodos , Imagen de Difusión Tensora/métodos , Escolaridad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Vías Nerviosas/anatomía & histología , Vías Nerviosas/fisiología , Adulto Joven
4.
Neurology ; 58(3): 488-90, 2002 Feb 12.
Artículo en Inglés | MEDLINE | ID: mdl-11839860

RESUMEN

A collector is a person who collects things on purpose, either as a hobby or business, or for personal satisfaction, e.g., stamp, coin, or art collector. In such instances, the act of collecting things represents voluntary, controlled, goal-directed, selective searching. Pathologic patterns of collecting have been observed following brain damage, particularly frontal lobe damage, ranging from a tendency to grasp (prehension behavior) to an irrepressible need to seize surrounding objects and store them (hoarding behavior). These adnormal behaviors express an excessive adherence to environmental stimuli but in no way express a planned process directed toward specific items. In this article, we describe an unusual pattern of pathologic collecting behavior due to frontal lobe damage: involuntary irrepressible collecting that is goal-directed and selective. The authors report a patient who collected specifically household electrical appliances following a bilateral damage of orbito- and polar-prefrontal cortex. The patient had involuntary irrepressible collecting that was goal-directed and selective. This "forced collectionism" is different from that of the usual collectionism encountered in patients with frontal lobe lesions, as the latter is in no way a planned process directed toward specific items.


Asunto(s)
Trastornos del Conocimiento/etiología , Trastornos Mentales/etiología , Corteza Prefrontal/patología , Adulto , Trastornos del Conocimiento/patología , Objetivos , Humanos , Imagen por Resonancia Magnética , Masculino , Neoplasias Meníngeas/patología , Neoplasias Meníngeas/cirugía , Meningioma/patología , Meningioma/cirugía , Trastornos Mentales/patología
5.
Rofo ; 169(1): 27-32, 1998 Jul.
Artículo en Alemán | MEDLINE | ID: mdl-9711279

RESUMEN

PURPOSE: Description of the procedure and first results with functional MRI of the lumbar spine for the investigation of discoligamentous instability. MATERIAL AND METHOD: 21 patients--11 female and 10 male--were studied with rapid True-FISP- and FLASH sequences. With the intention to document movements in maximal ante- and retroflexion a special kidney belt was used containing an inserted multi-purpose flexible coil. With this approach reproducible functional studies can be obtained. RESULTS: Movements in ante- and retroflexion could be performed manually and gradually without technical limitation of restrictions due to the equipment. The location of a patient's pain was determined by indication from the patient and correlated with the finding on the functional MR images. In 71% of patients a gain of information was obtained with regard to discoligamentous instability of the lumbar spine when compared to earlier studies (CT, MRI in neutral position). CONCLUSIONS: Functional MRI of the lumbar spine can contribute additional segmental information and contribute to further therapy planning. With this method discoligamentous instability can be documented, which is less likely with static MRI in a closed MR system.


Asunto(s)
Desplazamiento del Disco Intervertebral/diagnóstico , Inestabilidad de la Articulación/diagnóstico , Ligamentos Articulares/patología , Vértebras Lumbares/patología , Imagen por Resonancia Magnética/métodos , Adolescente , Adulto , Femenino , Humanos , Ligamentos Articulares/diagnóstico por imagen , Vértebras Lumbares/diagnóstico por imagen , Imagen por Resonancia Magnética/instrumentación , Masculino , Persona de Mediana Edad , Postura , Tomografía Computarizada por Rayos X
6.
Rofo ; 154(2): 197-201, 1991 Feb.
Artículo en Alemán | MEDLINE | ID: mdl-1847546

RESUMEN

A prospective study of direct cervical myelography with Iotrolan 300 showed the following advantages: 1. Clear differentiation of the nerve roots. 2. Increased retention of contrast in the cervical region. 3. Improved contrast compared with conventional contrast media. 4. Optimal contrast temperature was found to be between 20 and 22 degrees C. 5. Reduction in non-specific and central nervous system complications.


Asunto(s)
Medios de Contraste/administración & dosificación , Mielografía/métodos , Ácidos Triyodobenzoicos/administración & dosificación , Adolescente , Adulto , Femenino , Humanos , Inyecciones Espinales , Masculino , Persona de Mediana Edad , Estudios Prospectivos
7.
Int J Oral Maxillofac Surg ; 20(6): 369-70, 1991 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-1770245

RESUMEN

Haemorrhage due to errosion of blood vessels in tumors of the head and neck are a dramatic event. Superselective embolization plays an important role in the treatment of these entities. A therapeutic approach and method of embolization is described.


Asunto(s)
Carcinoma/irrigación sanguínea , Embolización Terapéutica , Hemorragia/terapia , Neoplasias de la Parótida/irrigación sanguínea , Anciano , Anciano de 80 o más Años , Arterias , Carcinoma/terapia , Cara/irrigación sanguínea , Humanos , Masculino , Necrosis , Neoplasias de la Parótida/terapia , Alcohol Polivinílico/uso terapéutico
9.
Rev Neurol (Paris) ; 157(4): 430-2, 2001 Apr.
Artículo en Francés | MEDLINE | ID: mdl-11398017

RESUMEN

Orbital myositis is a rare disorder considered as a subgroup of inflammatory orbital pseudotumors. The pathophysiology is still unknown. Patients typically present with orbital pain exacerbated by eye movement and diplopia. Response to steroids is dramatic. We report a case of idiopathic myositis of the right inferior muscle, which recovered after steroid therapy.


Asunto(s)
Miositis/diagnóstico , Enfermedades Orbitales/diagnóstico , Prednisona/uso terapéutico , Adulto , Diplopía/etiología , Movimientos Oculares , Femenino , Humanos , Imagen por Resonancia Magnética , Miositis/tratamiento farmacológico , Músculos Oculomotores/patología , Enfermedades Orbitales/tratamiento farmacológico
10.
Ear Nose Throat J ; 80(1): 41-4, 46-8, 2001 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-11209518

RESUMEN

We evaluated objective diagnostic methods for patients with possible upper cervical spine instability caused by trauma and correlated them with subsequent neurosurgical findings and outcomes. Between November 1995 and May 1998, we investigated 420 patients with functional magnetic resonance imaging (MRI) of the craniocervical junction. We evaluated the extracranial vertebral circulation by MRI angiography, with focus on the position of the dens and on the subarachnoid space during entire rotational maneuvers. We documented 72 cases (17.1%) of injuries to the alar ligaments that were accompanied by signs of instability. Twenty patients (4.8%) had a complete alar ligament rupture, and 52 (12.4%) had an incomplete rupture with coexisting instability. We referred these patients to a neurosurgeon. Surgery was eventually chosen for 42 patients (10.0%) with the intention of obtaining dorsal occipitocervical stabilization. The duration of time between the MRI evaluation and surgery ranged from 1 week to 1.5 years (mean: 3.5 mo). After the fifth postoperative day, almost all symptoms had disappeared. One year following surgery, 34 of the 42 patients (80.9%) still demonstrated successful fusion and an alleviation of their sensation of instability. Twenty-five of these patients (59.5%)--all of whom were unemployed before surgery--were able to resume a professional activity. In the eight patients (19.0%) who still had a loss of stability during the second and 14th weeks, we noticed that there were some negative effects of rehabilitation. Six of these patients developed pseudarthrosis or osteolysis of their bone grafts during the first 3 months after fusion, and three required a repeat operation. We conclude that functional MRI with lateral tilting and rotatory evaluation is a useful tool for investigating craniocervical instability. For patients who are recalcitrant to following a program of conservative therapy, surgical stabilization of the craniocervical junction appears to be justified.


Asunto(s)
Ligamentos/lesiones , Imagen por Resonancia Magnética , Procedimientos Ortopédicos/métodos , Traumatismos de los Tejidos Blandos/diagnóstico , Traumatismos de los Tejidos Blandos/cirugía , Lesiones por Latigazo Cervical/diagnóstico , Lesiones por Latigazo Cervical/cirugía , Adolescente , Adulto , Vértebras Cervicales , Diagnóstico Diferencial , Femenino , Humanos , Ligamentos/patología , Angiografía por Resonancia Magnética , Masculino , Estudios Retrospectivos , Análisis de Supervivencia , Resultado del Tratamiento , Grabación en Video , Lesiones por Latigazo Cervical/complicaciones , Lesiones por Latigazo Cervical/patología
11.
Int Tinnitus J ; 6(2): 134-9, 2000.
Artículo en Inglés | MEDLINE | ID: mdl-14689632

RESUMEN

Patients suffering from distortion of the cervical spine after an acceleration trauma present problems with respect to the correct diagnostic recognition of the existing injuries. To define instability of the craniocervical junction, attention should be given to the position of the dens and the dimension of its subarachnoid space during the entire rotational maneuver. Our diagnosis via functional magnetic resonance imaging (fMRI) with video did not focus on injuries to the ligamentous microstructure as visualized with high-resolution MRI. Our purpose was to demonstrate the cause of instability of the craniocervical junction by direct visualization during fMRI-video technique. Between December 1997 and March 1999, 200 patients were studied using fMRI on a 0.2-Tesla Magnetom Open. Routine evaluation of the extracranial vertebral circulation by MRI angiography as an additional preinvestigative requirement is recommended. The earliest examination time from injury to MRI evaluation was 3 months and the maximum, 5 years (average, 2.6 years). Among the 200 patients investigated, 30 showed instability of the ligamentous dens complex. Of the same 200, 8 (4%) had a complete rupture and 22 (11%) an incomplete rupture of the alar ligament, with instability signs. In another 45 patients (22.5%), fMRI-video showed evidence of instability, and all these patients had coexisting intraligamentous signal pattern variation, probably due to granulation tissue. Eighty patients of the 200 (40%) had signal indifference without demonstrable video instability signs, and 43 patients (21.5%) showed no evidence of instability and no signal variation in the alar ligaments. On the basis of recognition of instability and the malfunction of the ligaments, the fibrous capsula, and the tiny dens capsula, we now can distinguish between lesions caused by rotatory trauma to the craniocervical junction and those from classic whiplash injury.


Asunto(s)
Vértebras Cervicales/lesiones , Inestabilidad de la Articulación/etiología , Ligamentos/lesiones , Imagen por Resonancia Magnética , Traumatismos de los Tejidos Blandos/diagnóstico , Lesiones por Latigazo Cervical/diagnóstico , Vértebras Cervicales/patología , Femenino , Humanos , Inestabilidad de la Articulación/patología , Ligamentos/patología , Masculino , Traumatismos de los Tejidos Blandos/patología , Lesiones por Latigazo Cervical/patología
12.
Sportverletz Sportschaden ; 10(3): 70-3, 1996 Sep.
Artículo en Alemán | MEDLINE | ID: mdl-9005602

RESUMEN

Injuries of the acromioclavicular joint in hockey mainly occur after trauma directly to the shoulder joint. E.g. at a fall against the border, onto the ground or in case of a body check. Tossy-III-lesions lead directly to surgery meanwhile type Tossy-II-lesions are mainly treated conservatively. Despite healing of the acromioclavicular ligaments often acromioclavicular joint pain remains despite conservative treatment because of discuss lesions or a osteolysis of the lateral end of the clavicle. The resection of the lateral end of the clavicle with certain pain relief, very good functional results and quick full level participation in hockey has been shown as the method of choice in our patients.


Asunto(s)
Articulación Acromioclavicular/lesiones , Traumatismos en Atletas/diagnóstico , Clavícula/lesiones , Hockey/lesiones , Luxaciones Articulares/diagnóstico , Osteólisis/diagnóstico , Articulación Acromioclavicular/cirugía , Adolescente , Adulto , Traumatismos en Atletas/cirugía , Clavícula/cirugía , Estudios de Seguimiento , Humanos , Luxaciones Articulares/cirugía , Imagen por Resonancia Magnética , Masculino , Osteólisis/cirugía
13.
Brain Imaging Behav ; 8(1): 1-6, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24078043

RESUMEN

Although Frontotemporal Dementia (FTD) is the second most common form of dementia after Alzheimer's disease, its diagnosis remains particularly challenging today. This is particularly true for the behavioral variant (bvFTD), the most common phenotype of FTD, which is characterised by dramatic changes in personal and social conduct. Novel clinical cognitive tests have been recently proposed to diagnose and assess these patients. Among them, the mini-SEA (Social cognition & Emotional Assessment) has shown promising results. This quick clinical tool evaluates emotion recognition and theory of mind deficits, both recognized as hallmark features of bvFTD. In this study, we investigated the neural correlates of the mini-SEA in twenty bvFTD patients, using single photon emission computed tomography (SPECT) and focusing on the mPFC. Results showed that detection of faux pas during a theory of mind evaluation was related to rostral mPFC perfusion (BA 10) while recognition of emotion involved more dorsal regions within the mPFC (BA 9). As significant and early dysfunction of the mPFC has been extensively described in bvFTD, this study supports the use of the mini-SEA in evaluation and diagnosis purposes in bvFTD.


Asunto(s)
Demencia Frontotemporal/diagnóstico , Demencia Frontotemporal/fisiopatología , Corteza Prefrontal/fisiopatología , Pruebas Psicológicas , Anciano , Anciano de 80 o más Años , Mapeo Encefálico , Emociones/fisiología , Femenino , Demencia Frontotemporal/diagnóstico por imagen , Humanos , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Fenotipo , Corteza Prefrontal/diagnóstico por imagen , Reconocimiento en Psicología/fisiología , Teoría de la Mente/fisiología , Tomografía Computarizada de Emisión de Fotón Único
14.
Cereb Cortex ; 15(7): 1064-74, 2005 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-15563726

RESUMEN

Most of the working memory (WM) tasks used in functional imaging studies are based on the principle of the delayed response in which both the storage and the response organization are present during the delay period. It is therefore difficult to isolate activation specific to the storage function from that specific to the organization of the response. To determine the specific neural networks associated with these two WM operations, we performed a functional MRI study in healthy subjects using a new paradigm, 'the double delay/double response' tasks. This paradigm isolates maintenance from response organization by dividing the delay into two separate parts, the first being dedicated to memory, while the second includes response organization. Activation within the dorsolateral prefrontal cortex (DLPFC) followed a relative hemispheric dissociation: activation related to maintenance was predominant in the right DLPFC but was only detected when the load exceeded three items. Activation related to response organization was predominant in the left DLPFC, regardless of whether this response was based on information held in WM ('memory guided') or was independent of WM ('visually-guided'). These results suggest that activation of the DLPFC, should be interpreted in terms of executive processing for both maintenance and response organization.


Asunto(s)
Cognición/fisiología , Imagen por Resonancia Magnética , Memoria a Corto Plazo/fisiología , Corteza Prefrontal/fisiología , Adulto , Femenino , Humanos , Masculino , Estimulación Luminosa , Tiempo de Reacción/fisiología
15.
Radiology ; 180(3): 874-6, 1991 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-1871311

RESUMEN

A 4-F braided catheter with a soft radiopaque tip was used in selective spinal panangiographic procedures. Results obtained with the catheter were compared with those obtained in procedures with conventional catheters. The catheter was used in the intercostal, lumbar, and sacral arteries. Advantages of using this catheter include excellent maneuverability, reduced patient exposure to contrast medium, and reduced fluoroscopy duration.


Asunto(s)
Angiografía/instrumentación , Cateterismo/instrumentación , Médula Espinal/irrigación sanguínea , Adolescente , Adulto , Anciano , Angiografía/métodos , Malformaciones Arteriovenosas/diagnóstico por imagen , Femenino , Humanos , Masculino , Persona de Mediana Edad
16.
Pediatr Radiol ; 17(6): 439-42, 1987.
Artículo en Inglés | MEDLINE | ID: mdl-3317246

RESUMEN

Report of two new pediatric cases of pulmonary alveolar microlithiasis (PAM). PAM is a rare disease of unknown etiology; not more than 38 cases have been reported aged less than 18 years. The essential features of this disease are (1) a characteristic radiographic appearance of a sand-like opacity of both lungs and linear densities like "beads on a string" along the heart, pleura and interlobar fissures; this is best visualized by fluoroscopy in combination with magnification technique; (2) extremely few clinical signs and almost no laboratory abnormalities.


Asunto(s)
Calcinosis/diagnóstico por imagen , Enfermedades Pulmonares/diagnóstico por imagen , Alveolos Pulmonares/diagnóstico por imagen , Niño , Femenino , Humanos , Masculino , Radiografía
17.
Pediatr Radiol ; 26(4): 280-1, 1996.
Artículo en Inglés | MEDLINE | ID: mdl-8677147

RESUMEN

From April 1992 to May 1994, 780 patients aged from 1 day to 8 years were examined. Sedation of these patients was conducted by giving chlorprothixene orally and, in some cases, chloral hydrate had to be added. The patients were monitored with a pulse oxymeter. Investigations could begin after 50 -120 min. In 710 patients (91%) the first attempt to perform the examination was successful; 70 patients required one or two further attempts. Only two of the 780 patients (0.5%) showed evidence of respiratory depression. The total number of pediatric MRI examinations performed in 1 year is almost 1000. In the hands of an experienced pediatric radiologist these examinations can be performed entirely without anesthesia.


Asunto(s)
Hidrato de Cloral , Clorprotixeno , Hipnóticos y Sedantes , Imagen por Resonancia Magnética , Monitoreo Fisiológico/métodos , Niño , Preescolar , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Oximetría , Estudios Prospectivos
18.
Neuroradiology ; 30(2): 138-44, 1988.
Artículo en Inglés | MEDLINE | ID: mdl-3386807

RESUMEN

The CT appearance of the lumbar neural foramina and contents is described in detail and compared to histopathological specimens. Direct axial scans with secondary sagittal, coronal and paraxial reconstruction series of slices of the neural foramen were derived from lumbar spine examination of fifty normal adults. These normal parameters were then used to evaluate and subdivide 20 patients with disc herniation involving the neural foramen. The new paraxial reformation was able to show an intraneuroforaminal disc involvement. CT-reformation technique and operative results in intraneuroforaminal disc herniation correspond in 80%. This improvement in preoperative diagnosis demonstrates to the neurosurgeon the full extent of disc herniation and results in an optimized operative approach.


Asunto(s)
Desplazamiento del Disco Intervertebral/diagnóstico por imagen , Tomografía Computarizada por Rayos X/métodos , Adulto , Humanos , Vértebras Lumbares
19.
Radiology ; 160(2): 407-9, 1986 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-3726120

RESUMEN

Metallic foreign bodies ingested by eight patients (seven children) were removed from the upper gastrointestinal tract by means of a magnet inserted into the end of an orogastric tube. No patient required hospitalization, anesthesia, surgery, or subsequent radiography, and all patients remained asymptomatic. In no case did the foreign body uncouple from the orogastric tube-magnet arrangement during retrieval. The procedure is an alternative to endoscopic or surgical removal in some cases of metallic foreign body ingestion.


Asunto(s)
Sistema Digestivo , Cuerpos Extraños/terapia , Adulto , Niño , Preescolar , Femenino , Humanos , Magnetismo , Masculino
20.
Z Kinderchir ; 42(6): 346-9, 1987 Dec.
Artículo en Alemán | MEDLINE | ID: mdl-3439355

RESUMEN

Foreign bodies with metal content ingested by 16 patients were removed from the upper gastrointestinal tract by means of a magnet inserted into the end of orogastric tube. In only one case did the foreign body uncouple from the orogastric tube-magnet arrangement during retrieval. The procedure is an alternative to endoscopic or surgical removal in some cases of metal foreign body ingestion.


Asunto(s)
Duodeno , Esófago , Cuerpos Extraños/terapia , Intubación Gastrointestinal/instrumentación , Magnetismo , Metales , Estómago , Niño , Preescolar , Femenino , Humanos , Lactante , Masculino
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