Síncope en la edad pediátrica / Syncope in the pediatric age

Introducción. El síncope es la pérdida brusca y transitoria del nivel de conciencia y del tono postural a consecuencia de una hipoperfusión cerebral transitoria. Desarrollo. Se trata de un síntoma muy frecuente en la edad pediátrica, sobre todo en la adolescencia y que, en ocasiones, genera gran angustia entre las familias e inseguridad entre los profesionales, abusándose de exploraciones y tratamientos innecesarios. En esta revisión daremos las claves para hacer un correcto diagnóstico diferencial, analizaremos los datos de alarma que nos deben hacer sospechar que no nos encontramos ante un cuadro benigno, veremos qué recomendaciones debemos dar a las familias y a los pacientes y cuándo remitir al especialista. Nuestros objetivos con esta revisión: saber enfocar correctamente el síncope en la edad pediátrica; tranquilizar cuando se trate de un proceso benigno e identificar los casos de potencial gravedad. Conclusiones. En la edad pediátrica los síncopes son en su mayoría benignos. El síncope reflejo, concretamente el vasovagal, es el más frecuente. La historia clínica es la clave para el diagnóstico. Debemos estar especialmente atentos a los datos de alarma en la historia y en el electrocardiograma que nos puedan indicar la presencia de una cardiopatía subyacente. Los niños con una historia compatible con síncope vasovagal, sin antecedentes familiares de riesgo y con electrocardiograma normal no precisan valoración cardiológica adicional. Entre los aspectos más importantes del tratamiento del síncope reflejo están formar y tranquilizar al niño y a la familia (AU)

Introduction. Syncope is the sudden and transient loss of the level of consciousness and postural tone due to a transient cerebral hypoperfusion. Development. This is a very frequent symptom in the pediatric age, above all in adolescent age and which, at times, generates great anxiety among the family and insecurity among the professionals, unnecessary examinations and treatments being abuse of. In this review, we present the keys to making a correct differential diagnosis. We analyze the alert data that should lead us to suspect that we are not facing a benign picture. We will see what recommendations we should give the family and patients and when to send them to the specialist. Our objectives with this review are: to know how to correctly approach the syncope in the pediatric age; to reassure when it is a benign process and to identify the cases having potential severity. Conclusions. Syncopes are mostly benign in the pediatric age. The reflex syncope, specifically the vasovagal one, is the most frequent. The clinical history is key for the diagnosis. We should be especially alert to the alarm data in the history and in the electrocardiogram that can indicate the presence of an underlying heart disease. Children with a history consistent with vasovagal syncope, with no family background of risk and with a normal electrocardiogram do not require additional cardiological evaluation. Among the most important aspects of treatment of the reflex syncope are those of informing and assuring the child and the family (AU)

Thoracolumbar fractures without neurological impairment: A review of diagnosis and treatment.

An appropriate protocol and unified management of thoracolumbar fractures without neurological impairment has not been well defined.This review attempts to elucidate some controversies regarding diagnostic tools, the ability to define the most appropriate treatment of classification systems and the evidence for conservative and surgical methods based on the recent literature. Cite this article: Vilà-Canet G, García de Frutos A, Covaro A, Ubierna MT, Caceres E. Thoracolumbar fractures without neurological impairment: a review of diagnosis and treatment. EFORT Open Rev 2016;1:332-338. DOI: 10.1302/2058-5241.1.000029.

Do surgical expectations change depending on first time surgery or reoperation? A prospective cohort study in lumbar spine surgery.

PURPOSE: To assess whether patients undergoing lumbar spine surgery for the first time (Group 1) had different expectations from those undergoing lumbar spine surgery for a failed previous procedure (Group 2). METHODS: A prospective study that included 77 patients. A set of self-reported questionnaires was pre-operatively administered including VAS, Oswestry Disability Index (ODI), Zung Depression Scale and the NASS lumbar spine questionnaire (expectations scale). RESULTS: Fifty-six patients in Group 1 and 21 patients in Group 2. Both groups had high expectations with regard to the surgical procedure (n.s.). Depressed patients, despite being more disabled than non-depressed according to ODI (p 0.001), had similar expectations than non-depressed patients (n.s.). CONCLUSION: Patients' expectations remained very high despite having had a failed previous surgery for the same procedure.

The protective role of dynamic stabilization on the adjacent disc to a rigid instrumented level. An in vitro biomechanical analysis.

OBJECTIVES: To assess the changes of intradiscal pressure at the bridged and at the adjacent levels to a lumbar two-level hybrid instrumentation. INTRODUCTION: The elimination of motion produced by spinal fusion may have potential consequences beyond the index level overloading the juxtaposed spinal motion segments and leading to the appearance of degenerative changes. Degeneration of the segments adjacent to instrumented levels has become a topic of increasing interest in the literature over the last years. In order to prevent degenerative disc changes at the adjacent segments to a fused level, a broad scope of techniques have been developed, one of them is hybrid constructs. METHODS: In 6 human cadaveric lumbosacral specimens, pressure transducers quantified intradiscal pressure changes at three levels (L3-L4, L4-L5 and L5-S1) under axial compression (0-750 N), anterior flexion (+12°) and extension (-12°) in three different situations of spinal stability: intact, L5-S1 rigid rod pedicle screw instrumentation and L4-S1 two-level hybrid instrumentation (rigid at L5-S1 and dynamic at L4-L5). RESULTS: Once the L5-S1 segment had implanted the rigid instrumentation system (Diapason), the intradiscal pressure at this level decreased by 65 % while the intradiscal pressure at the disc above (L4-L5) increased 20 %. After augmenting the L5-S1 posterior construct with a dynamic stabilization device (Dynesys) at the superior adjacent level, the intradiscal pressure at this level, L4-L5, decreased by 50 % whereas intradiscal pressure at its adjacent level, L3-L4, only experienced a slight increase of 10 %. CONCLUSIONS: The raise of intradiscal pressure at the adjacent segment to a rigid instrumented segment can be reduced when the rigid construct is augmented with a dynamic stabilization device. Hybrid constructs might have a possible protecting role preventing the occurrence of degenerative disc changes at the adjacent segment to a rigid instrumented level. Augmentation with a dynamic stabilization device might protect the disc above a rigid rod pedicle screw construct.

[Nutritional aversions and preferences of 14-18 years old adolescents, schooled at the city of Santander]. / Aversiones y preferencias alimentarias de los adolescentes de 14 a 18 años de edad, escolarizados en la ciudad de Santander.

OBJECTIVE: To describe the nutritional aversions and preferences of 14-18 years old adolescents schooled at Santander and analyze the changes taking place within the last decade. SUBJECTS: A cross-sectional study was carried out analyzing a sample of 1134 adolescents: 549 males (48.4%, 95% CI: 45.5%-5.3%) and 585 females (5.6%, 95% CI: 48.7%-54.5%), ages comprised between 14 and 18 years, and schooled at centers of secondary educational level from Santander, by means of a questionnaire. RESULTS: vegetables (54.7%) and legumes (18.7%) represent the main nutritional aversions of adolescents. On the other hand, grains (53.3%) and meats (14.6%) are the preferred foods. Lentils, lettuce, strawberry, water, and pasta generally were the best-valued foods within the groups of foods and drinks to which they belong. CONCLUSION: nutritional aversions and preferences of adolescents from Santander generally are very similar to those observed in other studies and we have not observed important changes within the last decade. The data obtained may be useful to observe future trends on nutritional preferences that, together with other parameters, may help characterized the nutritional behavior of our adolescents.

One-stage decompression and posterolateral and interbody fusion for severe spondylolisthesis. An analysis of 14 patients.

STUDY DESIGN: A retrospective study of 14 patients with high-grade L5-S1 spondylolisthesis surgically treated with one-stage decompression and posterolateral and interbody fusion (technique of Bohlman and Cook). OBJECTIVE: To determine the efficacy of this technique in managing severe lumbosacral spondylolisthesis. SUMMARY OF BACKGROUND DATA: Controversy exists over the most appropriate method for managing high-grade spondylolisthesis. Circumferential in situ fusion from a single-stage posterior approach was described in 1982, but to the current authors' knowledge, there are not many reports on clinical results in the literature. The current authors studied 14 patients (mean age, 21 years) with severe L5-S1 spondylolisthesis. The percentage of slipping averaged 77%; slip angle averaged 36 degrees. The average follow-up period was 30 months. All patients had severe back or radicular symptoms. Two patients had foot drop, and four had minor neurologic dysfunction. Four patients had extremely tight hamstrings. METHODS: Pre- and postoperative radiographic films and computed tomography scans were reviewed. Magnetic resonance imaging was carried out in 11 patients before surgery and at follow-up examination. Patients were evaluated for fusion rate, clinical outcome, and complications. RESULTS: All six patients with motor deficit of the nerve roots showed complete strength recovery at follow-up examination. None of the patients had tightness of hamstrings. Twelve patients demonstrated incorporation of the graft with solid fusion, one patient had a fracture of the fibular graft, and one had graft resorption. All patients but one rated the surgical result as excellent. One patient was not satisfied with the cosmetic result. Transient paresthesias in the leg of the donor graft were documented in two patients. CONCLUSIONS: Posterior decompression of the spinal canal combined with anterior and posterior arthrodesis performed at one stage through a posterior approach is a safe and effective technique for managing severe spondylolisthesis.

Tuberculosis of the neural arch. A report of four cases.

Four cases of spinal tuberculosis involving the posterior neural elements are reported; all the patients were from Africa. The condition is rare and its incidence may be different in different races. Neural arch involvement is likely to be associated with neurological complications.

The results of surgical treatment of lumbar arachnoiditis.

Forty patients with lumbar arachnoiditis, following previous operations, were classified into 4 myelographic types. Most patients with type I images had herniated disc symptoms with unilateral leg pain and limited straight-leg raising. Patients with types II and III myelographic appearances had bilateral leg pain, absent ankle jerks, weakness, cramps and signs of diffuse sensory deficit; some also had neurogenic claudication and urinary sphincter dysfunction. All patients with type IV had dysesthesia. Twenty-three of the 40 patients underwent reoperation and those with types I and II had acceptable results, but poor results occurred in those with types III and IV myelograms.