Are postoperative prophylactic antibiotics effective for orbital fracture? / ¿Son efectivos los antibióticos profilácticos postoperatorios en fractura de órbita?

INTRODUCTION: Infection is one of the main complications of orbital fracture, either because of the connection to the paranasal sinuses or as a postoperative complication. Despite the advances made in this condition, there is still controversy regarding the role of prophylactic antibiotics. METHODS: To answer this question we used Epistemonikos, the largest database of systematic reviews in health, which is maintained by screening multiple information sources, including MEDLINE, EMBASE, Cochrane, among others. We extracted data from the systematic reviews, reanalyzed data of primary studies and generated a summary of findings table using the GRADE approach. RESULTS AND CONCLUSIONS: We identified only one systematic review including four studies overall, of which only one was a randomized trial. We concluded that postoperative antibiotic prophylaxis might not decrease the risk of infection in orbital fracture, and probably increases the risk of diarrhea.

INTRODUCCIÓN: Una de las principales complicaciones de la fractura de órbita son las infecciones, ya sea por la comunicación con los senos paranasales o como complicación postoperatoria de su tratamiento. Pese a los avances en esta patología, aún existe controversia sobre el rol de los antibióticos profilácticos. MÉTODOS:: Para responder esta pregunta utilizamos Epistemonikos, la mayor base de datos de revisiones sistemáticas en salud, la cual es mantenida mediante búsquedas en múltiples fuentes de información, incluyendo MEDLINE, EMBASE, Cochrane, entre otras. Extrajimos los datos desde las revisiones identificadas, reanalizamos los datos de los estudios primarios y preparamos una tabla de resumen de los resultados utilizando el método GRADE. RESULTADOS Y CONCLUSIONES: Identificamos sólo una revisión sistemática que incluyó cuatro estudios primarios, de los cuales tan solo uno corresponde a un ensayo aleatorizado. Concluimos que la profilaxis antibiótica postoperatoria podría no disminuir el riesgo de infección en fractura de órbita, y probablemente aumenta el riesgo de diarrea.

Multicentred international review of orbital exenteration and reconstruction in oculoplastic and orbit practice.

BACKGROUND: Orbital exenteration is a disfiguring procedure reserved for life-threatening malignancies. This study examines the clinical course and outcomes of a large series of patients who underwent orbital exenteration for malignant periocular neoplasms. METHODS: This is a retrospective review of patients who underwent orbital exenteration from 1 July 2005 to 30 June 2015 at four tertiary referral centres in the USA, Australia and Canada. Demographics, indication for surgery, pathology, surgical technique, reconstruction type and outcomes were reviewed. RESULTS: Orbital exenteration was performed on 102 patients. The mean age at surgery was 67.5 years. The most common malignant tumours encountered were squamous cell carcinoma, melanoma and basal cell carcinoma. Seventy-six patients (75%) underwent reconstruction with a local myocutaneous flap, twelve with partial-thickness skin grafts (PTSG), or split skin graft, two had a free flap, and one had a dermis fat graft. Sixteen patients had combined procedures of two of the above. Complete removal of the tumour was achieved with clear margins in 81 cases. Of all patients, 72% were alive at 48 months or more. CONCLUSION: The majority of orbital exenterations performed in this series were secondary to periocular malignancies with unsuccessful/insufficient previous treatments. Regional myocutaneous flaps, PTSG, full-thickness skin grafts and dermis fat grafts were all highly effective and durable reconstructive options, and were able to withstand radiation therapy without complications.

Intermittent Hypoxia and Locomotor Training Enhances Dynamic but Not Standing Balance in Patients With Incomplete Spinal Cord Injury.

OBJECTIVE: To test the effect of combined intermittent hypoxia (IH) and body weight-supported treadmill training (BWSTT) on standing and dynamic balance in persons with incomplete spinal cord injury (iSCI). DESIGN: Randomized, triple-blind, placebo-controlled study. SETTING: Rehabilitation medical centers. PARTICIPANTS: Study participants (N=35) with chronic iSCI with American Spinal Injury Association grades C and D (>1y postinjury) were randomly assigned to either IH plus BWSTT (n=18) or continued normoxia (placebo) plus BWSTT protocol (n=17). INTERVENTIONS: Participants received either IH (alternating 1.5min 9% inspired O2 with 1.5min 21% inspired O2, 15 cycles per day) or continued normoxia (21% O2) combined with 45 minutes of BWSTT for 5 consecutive days, followed by 3 times per week IH or normoxia plus BWSTT, for 3 additional weeks. MAIN OUTCOME MEASURES: Standing balance (normalized jerk and root-mean-square [RMS]) and dynamic balance (turning duration, cadence in a turn, and turn-to-sit duration) were assessed before and after IH and normoxia protocol by means of instrumented sway and instrumented timed Up and Go test. RESULTS: There was no significant difference in standing balance between interventions for both normalized jerk and RMS instrumented sway components (both P>.05). There was a significantly faster cadence (P<.001), turning duration (P<.001), and turn-to-sit duration (P=.001) in subjects receiving IH plus BWSTT, compared with placebo. CONCLUSIONS: A 4-week protocol of IH combined with locomotor training improves dynamic, but not standing, balance in persons with iSCI.

Amiloidosis conjuntival: reporte de tres casos / Conjunctival amyloidosis: three case report

La amiloidosis conjuntival es una condición infrecuente en la práctica clínica, que se caracteriza por el depósito de material amiloide de la conjuntiva. Se estima que es la causa del 0,002 por ciento de las lesiones conjuntivales. Dada la baja incidencia de esta patología, existen pocos reportes en la literatura. En este trabajo se presentan los casos clínicos de tres pacientes con amiloidosis conjuntival que fueron atendidos en nuestro centro y se propone una aproximación diagnóstica para evaluar la existencia de amiloidosis sistémica.

Conjunctival amyloidosis is a rare condition characterized by the localized deposition of amyloid material in the conjunctiva. It's supossed to be the cause of 0.002 percent of conjunctival lesions. Given the low incidence of this disease, there are few reports in the literature. In this manuscript we present the cases of three patients with primary conjunctival amyloidosis who were attended at our institution. We also propose a diagnostic algorithm to rule out systemic amyloidosis in patients in whom the finding is conjunctival amyloidosis.

[Effectiveness of infliximab in patients with Behçet syndrome and severe uveoretinitis. Report of five cases]. / Eficacia del infliximab en pacientes con síndrome de Behçet portadores de úveo-retinitis grave.

The efficacy and safety of repeated administration of infliximab was evaluated in five patients (two men, three women) with Behçet syndrome accompanied by severe uveoretinitis. Ocular and extra ocular inflammation was suppressed in all patients during the observation period without any serious adverse reactions. The results in these patients suggests that TNF-á blockade is effective in patients with severe ocular Behçet syndrome.

Eficacia del infliximab en pacientes con síndrome de Behçet portadores de úveo-retinitis grave / Effectiveness of infliximab in patients with Behçet syndrome and severe uveoretinitis. Report of five cases

The efficacy and safety of repeated administration of infliximab was evaluated in five patients (two men, three women) with Behçet syndrome accompanied by severe uveoretinitis. Ocular and extra ocular inflammation was suppressed in all patients during the observation period without any serious adverse reactions. The results in these patients suggests that TNF-α blockade is effective in patients with severe ocular Behçet syndrome.

Neumonía complicada por Streptococcus pyogene, en una preescolar previamente sana / Pneumonia caused by Streptococcus pyogenes in a pre-school children

La neumonía es una causa frecuente de mortalidad en niños. El streptococcus pyogenes (Sp) es un agente etiológico poco frecuente de neumonía adquirida en la comunidad, pero puede producir infecciones invasoras severas rápidamente progresivas. En las últimas décadas se ha descrito un aumento en la incidencia de infecciones invasoras por Sp en la población general. Dentro de éstas la neumonía ocupa el tercer lugar en frecuencia. La presentación clínica de la neumonía por Sp es similar a la neumonía neumocócica, con inicio abrupto de fiebre, tos productiva y calofríos. Su diagnóstico y tratamiento adecuado son importantes para prevenir complicaciones secundarias como el síndrome de shock tóxico. En el presente artículo se describe el caso clínico de un preescolar de 4 años con una neumonía complicada por Sp y se revisa la literatura con respecto al diagnóstico y tratamiento.