Absceso cerebral múltiple del lóbulo temporal derecho, reporte de un caso / Multiple brain abscess of the right temporary lobe, report of a case

RESUMEN El absceso cerebral es un proceso infeccioso focal del parénquima cerebral. Se inicia con un área localizada de cerebritis y progresa a una colección de pus rodeada por una cápsula bien vascularizada. La mortalidad oscila entre 5 a 15 % de los casos, excepto en la ruptura intraventricular del absceso cerebral, situación en que la mortalidad oscila entre 38 a 84 %, con tasas altas de discapacidad en los sobrevivientes. Se presentó un caso de 47 años, con sintomatología neurológica infecciosa, además de signos neurológicos que demuestran el trastorno funcional del lóbulo temporal no dominante. Se realizaron varios exámenes complementarios y se diagnosticó dos abscesos cerebrales temporales derechos. Fue intervenido neuroquirúrgicamente, su evolución fue satisfactoria con regresión de casi la totalidad de los síntomas prequirúrgicos presentados (AU).

ABSTRACT Brain abscess is a focal infectious process of the brain parenchyma. It begins with a located area of cerebritis and progresses to a pus collection surrounded by a well-vasculirized capsule. Mortality oscillates from 5 % to 15% of the cases, except in the intraventricular rupture of the brain abscess, situation in which mortality oscillates from 38 % to 84 %, with high rates of disability in survivors. The case presented is the case of a patient aged 47 years, with infectious neurologic symptoms besides neurologic signs showing the functional disorder of the non-dominant temporal lobe. Several complementary tests were carried out and two right temporal brain abscesses were diagnosed. The patient underwent a neurosurgery; his evolution was satisfactory with the almost total regression of the symptoms before surgery (AU).

Malignant hyperthermia in a child after magnetic resonance imaging: a case report / Hipertermia maligna em criança após exame de ressonância magnética: relato de caso

ABSTRACT Objective: To report on a case of malignant hyperthermia in a child after a magnetic resonance imaging of the skull was performed using sevoflurane anesthesia. Case description: A 3-year-old boy admitted to the pediatric intensive care unit after presenting clinical and laboratory findings consistent with unspecified viral meningoencephalitis. While the patient was sedated, a magnetic resonance imaging of the skul was performed using propofol followed by the administration of sevoflurane through a laryngeal mask in order to continue anesthesia. Approximately three hours after the start of the procedure, the patient presented persistent tachycardia, tachypnea, generalized muscular stiffness and hyperthermia. With a diagnostic hypothesis of malignant hyperthermia, dantrolene was then administered, which immediately induced muscle stiffness, tachycardia, tachypnea and reduced body temperature. Comments: Malignant hyperthermia is a rare pharmacogenetic syndrome characterized by a severe hypermetabolic reaction after the administration of halogenated inhalational anesthetics or depolarizing muscle relaxants such as succinylcholine, or both. Although it is a potentially fatal disease, the rapid administration of continued doses dantrolene has drastically reduced the morbidity and mortality of the disease.

RESUMO Objetivo: Relatar um caso de hipertermia maligna em criança após exame de ressonância magnética de crânio realizada sob efeito anestésico de sevoflurano. Descrição do caso: Menino de três anos de idade, admitido na Unidade de Terapia Intensiva Pediátrica (UTIP) após apresentar quadros clínico e laboratorial compatíveis com meningoencefalite viral não especificada. Foi realizado um exame de ressonância magnética de crânio com sedação utilizando, na indução anestésica, o propofol seguido pela administração de sevoflurano por meio de máscara laríngea para manutenção anestésica. Aproximadamente três horas após o início do procedimento, o paciente apresentou taquicardia, taquipneia, rigidez muscular generalizada e hipertermia persistentes. Com hipótese diagnóstica de hipertermia maligna, foi então administrado dantrolene, que fez ceder de forma imediata a rigidez muscular, a taquicardia, a taquipneia e reduziu a temperatura corporal. Comentários: A hipertermia maligna é uma síndrome farmacogenética rara, que se caracteriza por reação hipermetabólica grave após administração de anestésicos inalatórios halogenados e/ou relaxantes musculares despolarizantes, como a succinilcolina. Apesar de ser uma doença potencialmente fatal, a rápida administração de dantrolene, junto às doses de manutenção, tem reduzido drasticamente a morbimortalidade da doença.

Aspectos epidemiológicos, clínicos, terapéuticos y evolutivos de la meningoencefalitis bacteriana / Epidemiological, clinical, therapeutic and evolutive aspects of bacterial meningoencephalitis

Se realizó un estudio descriptivo y observacional, de serie de casos, en 45 pacientes con meningoencefalitis bacteriana, egresados del Hospital Provincial Docente Clinicoquirúrgico "Saturnino Lora Torres", desde 2008 hasta 2013, a fin de caracterizarles según variables epidemiológicas, clínicas, microbiológicas y evolutivas. En la serie predominó el sexo femenino (54,5 %). Entre los síntomas cardinales de la enfermedad figuraron: fiebre (81,8 %), cefalea (77,3 %) y signos meníngeos (75,0 %). No fue posible obtener aislamiento en 52,3 % de los afectados, lo cual se logró en aquellos con Streptococcus pneumoniae (38,7 %). Se estimó una mortalidad de 18,2 %, asociada directamente a la presencia de sepsis sistémica.

A descriptive and observational serial cases study, was carried out in 45 patients with bacterial meningoencephalitis, discharged from "Saturnino Lora Torres" Teaching Clinical Surgical Provincial Hospital, from 2008 to 2013, in order to characterize them according to epidemiological, clinical, microbiological and evolutive variables. In the series the female sex prevailed (54.5%). Among the cardinal symptoms of the disease there were: fever (81.8%), migraine (77.3%) and meningeal signs (75.0%). It was not possible to obtain isolation in 52.3% of the affected patients, what was achieved in those with Streptococcus pneumoniae(38.7%). A mortality of 18.2% was estimated, associated directly to the presence of systemic sepsis.

Infección por virus herpes humano 6 en un paciente inmunocompetente con síndrome DRESS secundario a carbamazepina / Human herpes virus 6 infection in an inmunocompetent patient with carbamazepine-induced DRESS syndrome

El síndrome DRESS (drug reaction with eosinophilia and systemic symptoms) constituye una reacción adversa a fármacos, potencialmente mortal, caracterizada por una erupción cutánea polimorfa asociada a fiebre, linfadeno-patías y compromiso multiorgánico con eosinofilia. Presentamos el caso clínico de un hombre inmunocompetente con un síndrome DRESS secundario a carbamazepina que cursó concomitantemente con una meningoencefalitis por virus herpes humano 6 (VHH-6). El rol patogénico del VHH-6 en el síndrome DRESS sigue siendo controversial; sin embargo, dada la importancia diagnóstica y eventualmente pronóstica de la infección por VHH-6, su tamizaje sería recomendable dentro del estudio de estos pacientes.

DRESS syndrome (drug reaction with eosinophilia and systemic symptoms) is an adverse life-threatening drug reaction characterized by a polymorphous rash associated with fever, lymphadenopathy and multiorgan involvement with eosinophilia. We present the case of an immunocompetent man with DRESS syndrome secondary to carbamazepine, that developed concomitantly meningoencephalitis caused by human herpes virus 6 (HHV-6), and a review of literature. The pathogenic role of HHV-6 in DRESS syndrome remains controversial. Given the diagnostic and possibly prognostic significance of HHV-6, the screening seems to be a good measure to use in the clinical management of these patients.

CHAGASIC MENINGOENCEPHALITIS IN AN HIV INFECTED PATIENT WITH MODERATE IMMUNOSUPPRESSION: PROLONGED SURVIVAL AND CHALLENGES IN THE HAART ERA / Meningoencefalite chagásica em paciente infectada pelo HIV com imunodepressão moderada: desafios na era HAART e sobrevida prolongada

The reactivation of Chagas disease in HIV infected patients presents high mortality and morbidity. We present the case of a female patient with confirmed Chagasic meningoencephalitis as AIDS-defining illness. Interestingly, her TCD4+ lymphocyte cell count was 318 cells/mm3. After two months of induction therapy, one year of maintenance with benznidazol, and early introduction of highly active antiretroviral therapy (HAART), the patient had good clinical, parasitological and radiological evolution. We used a qualitative polymerase chain reaction for the monitoring of T. cruzi parasitemia during and after the treatment. We emphasize the potential value of molecular techniques along with clinical and radiological parameters in the follow-up of patients with Chagas disease and HIV infection. Early introduction of HAART, prolonged induction and maintenance of antiparasitic therapy, and its discontinuation are feasible, in the current management of reactivation of Chagas disease.

A reativação da doença de Chagas em pacientes com a infecção pelo HIV apresenta uma alta morbidade e mortalidade. Neste relato, apresentamos caso confirmado de meningoencefalite chagásica, como doença definidora de aids, em paciente com 318 linfócitos T-CD4+/mm3. Após 2 meses de tratamento seguido de um ano de profilaxia secundária com benzonidazol e início precoce de terapia antirretroviral (HAART), a paciente apresentou boa evolução clínica, parasitológica e radiológica. Utilizamos a reação em cadeia da polimerase qualitativa do T. cruzi, para monitorização da parasitemia por T. cruzi durante e após o tratamento. Ressaltamos o valor potencial das técnicas moleculares associadas aos parâmetros clínicos e radiológicos nos pacientes com doença de Chagas e infecção pelo HIV. A introdução precoce da terapia antirretroviral, a terapia antiparasitária prolongada, manutenção e descontinuação da mesma, são desafios atuais, embora possíveis, no manejo da reativação da doença de Chagas na era das terapias antirretrovirais de alta eficácia.

Meningoencefalitis por Criptococo neoformans: reporte de caso y revisión del tema / Meningoencephalitis by Cryptococcus neoformans: case report and subject revision

Se presenta el caso de una paciente femenina de 60 años, procedente de área urbana, con antecedentes de hipertensión arterial y artritis psoriásica, que lleva tratamiento con metrotexate, quien ingresó en la Unidad de Cuidados Intensivos por cefalea gradual generalizada y constante, seguida de pérdida de la conciencia, convulsiones generalizadas tónico-clónicas, estupor, afasia mixta, hiperreflexia osteotendinosa en los 4 miembros, Babinnsky bilateral y rigidez de nuca. La tomografía de cráneo informó hemorragia cerebral intraparenquimatosa. El estudio del líquido cefalorraquídeo fue incoloro, transparente, con 50 células solamente a predominio de linfocitos, por lo que se sospechó meningoencefalitis por hongos, que se confirmó al realizar tinción con tinta china (Cryptococo neoformans). Fueron estudiadas las excretas de su mascota (cotorra Amazona leucocephala leucocephala) que demostró ser el agente causal. Se aplicó tratamiento con amfotericin B, pero finalmente falleció ocho semanas después.

Cryptococcus gattii meningoencephalitis in an HIV-negative patient from the Peruvian Andes / Meningoencefalite causada por Cryptococcus gattii em um paciente HIV-negativo procedente dos Andes Peruanos

We report a case of an immunocompetent Peruvian patient from the Andes with a one-month history of meningoencephalitis. Cryptococcus gattii was identified from a cerebrospinal fluid culture through assimilation of D-proline and D-tryptophan as the single nitrogen source. Initially, the patient received intravenous antifungal therapy with amphotericin B. The patient was discharged 29 days after hospitalization and continued with oral fluconazole treatment for ten weeks. During this period, the patient showed clinical improvement with slight right-side residual weakness. Through this case report, we confirm the existence of this microorganism as an infectious agent in Peru.

Nós reportamos o caso de um paciente peruano immunocompetente proveniente dos Andes com história de um mês com meningoencefalite. Foi identificado o Cryptococcus gattii na cultura de liquido cerebrospinal através da assimilação de D-prolina e D-tryptofano como fonte única de nitrogênio. Inicialmente, o paciente recebeu tratamento antifúngico intravenoso com amfotericina B. O paciente foi liberado 29 dias depois da hospitalização, seguindo tratamento oral durante 10 semanas com fluconazol. Durante este período, o paciente apresentou melhoria clinica e uma leve fraqueza residual direita. Com o reporte do caso, nós confirmamos a existência desse microorganismo como agente infeccioso em nosso país.

Meningoencephalitis caused by a zygomycete fungus (Basidiobolus) associated with septic shock in an immunocompetent patient: 1-year follow-up after treatment

Zygomycosis is an infection caused by opportunistic fungi of the Zygomycetes class, specifically those from the Mucorales and Entomophthorales orders. It is an uncommon disease, mainly restricted to immunocompromised patients. We report a case of a 73-year-old male patient with a history of fever (39°C) lasting for 1 day, accompanied by shivering, trembling, and intense asthenia. The patient was admitted to the intensive care unit with complex partial seizures, and submitted to orotracheal intubation and mechanical ventilation under sedation with midazolam. The electroencephalogram showed evidence of non-convulsive status epilepticus. There is no fast specific laboratory test that permits confirmation of invasive fungal disease. Unless the physician suspects this condition, the disease may progress rapidly while the patient is treated with broad-spectrum antibiotics. Differential diagnosis between fungal and bacterial infection is often difficult. The clinical presentation is sometimes atypical, and etiological investigation is not always successful. In the present case, the histopathological examination of the biopsy obtained from the right temporal lobe indicated the presence of irregular, round, thick-walled fungi forming papillae and elongated structures of irregular diameter, with no septa, indicative of zygomycete (Basidiobolus). Treatment with liposomal amphotericin B and fluconazole was initiated after diagnosis of meningoencephalitis by zygomycete, with a successful outcome.

Meningoencefalitis chagásica en un paciente con infección por VIH/SIDA con sobrevida a tres años: caso clínico / Three-year survival of a patient with HIV and chagasic meningoencephalitis: case report

Immunocompromised patients as those with renal transplant, hematological neoplasia or cáncer and HIV/AIDS infection can suffer acute reactivation of Chagas disease. Central nervous system (CNS) evolvement (cerebral tumor or chagoma and diffuse meningoencephalitis) is similar to other opportunistic infections that present with cerebral expansive processes like toxoplasmosis or CNS primary lymphoma. Survival is infrequent, depending on antiparasitic therapy and early starting antiretroviral therapy. The case of an HIV/AIDS positive patient that evolved with a chagasic meningoencephalitis and improved after beginning early antiparasitic therapy and antiretroviral therapy antirretroviral is described.

Los pacientes inmunocomprometidos como los sometidos a trasplantes renales, con neoplasias hemato-oncológicas e infección por VIH/SIDA, pueden desarrollar reactivación aguda de la enfermedad de Chagas. El compromiso del sistema nervioso central-SNC (tumor cerebral o chagoma y meningoencefalitis difusa) es similar a otras infecciones oportunistas que cursan con procesos expansivos cerebrales como toxoplasmosis o linfoma primario del SNC. La sobrevida es poco frecuente, siendo prioritario para la buena evolución, la terapia antiparasitaria y el inicio de terapia antiretro viral. Se describe caso clínico de un paciente con infección por VIH/SIDA que cursó con meningoencefalitis chagásica con evolución satisfactoria tras el inico precoz de terapia antiparasitaria y terapia antiretro viral.

Clinical behavior of Streptococcus pneumoniae meningoencephalitis / Comportamiento clinico y terapéutico de la meningoencefalitis por Streptococcus pneumoniae

OBJECTIVE: There was an increased number of cases of meningoencephalitis caused by Streptococcus pneumoniae, after the successful vaccination campaigns against Neisseria meningitidis and Haemophilus influenzae. This paper aims at describing the clinical characteristics, the laboratory findings, the complications, and the therapeutic management of these patients, who have been suffering from this disease since 1993 to 2006. METHOD: Twelve children with Streptococcus pneumoniae meningoencephalitis admitted to the pediatric hospital of San Miguel del Padron, City of Havana in this period were assessed. RESULTS: Children under one year are the most frequently affected. Septic shock and brain edema were the most severe complications. Three patients died, implying that this disease has a serious course. Early treatment of brain edema is very important to reduce mortality. The elective drugs for treatment of these cases of Streptococcus pneumoniae meningoencephalitis were vancomycin combined with cephalosporin, cefotaxime or ceftriaxone type. CONCLUSION: Patients with Streptococcus pneumoniae meningoencephalitis show clinical characteristics, complications, and sequels that are different to other bacterial meningoencephalitis, meaning that they could be helpful for physicians considering the differential diagnosis of meningoencephalitis.

OBJETIVO: Existe un incremento de la meningoencefalitis producida por Streptococcus pneumoniae, después de las campañas exitosas de vacunación contra Neisseria meningitidis y Haemophilus influenzae. El objetivo de este trabajo es describir las caracteristicas clinicas, los hallazgos de laboratorio, las complicaciones y el manejo terapéutico de los pacientes que sufrieron esta enfermedad desde 1993 a 2006. MÉTODO: Se estudiaron doce niños con meningoencefalitis por Streptococcus pneumoniae ingresados en el Hospital Pediátrico de San Miguel del Padrón, Ciudad de La Habana en este periodo. RESULTADOS: Los niños menores de un año son los más frecuentemente afectados. El shock séptico y el edema cerebral las mayores complicaciones. Tres pacientes fallecieron. Esta enfermedad ha tenido un curso serio. El tratamiento temprano del edema cerebral es muy importante para reducir la mortalidad. Los medicamentos de elección para tratar la meningoencefalitis por Strepcococcus pneumoniae en los casos estudiados fueron la vancomicina combinada con cefalosporina del tipo de la cefatoxima o la ceftriaxona. CONCLUSION: Los pacientes con meningoencefalitis por Streptoccocus pneumoniae exhibieron características clínica, complicaciones y secuelas las cuales se diferencian de otras meningoencefalitis bacterianas. Por eso estos elementos pueden ayudar a los médicos en el diagnóstico diferencial

Meningoencefalitis a salmonella: presentación de casos / Meningoencephalitis to Salmonella: presentation of cases

Se presentan tres pacientes con el diagnóstico de meningoencefalitis a Salmonella (D no typhi en dos y C2 en uno) ingresados en la Unidad de Terapia Intensiva de nuestro hospital desde 1989 a 2006. La evolución de los infectados con el tipo D no typhi fue más severa, presentando uno de los pacientes osteomielitis de tercio inferior del húmero al mismo germen luego de 14 días de tratamiento con cefotaxima y otro con recaída de la meningoencefalitis luego de 21 días de tratamiento con cefotaxima y ampicillín. Al igual que otros autores observamos una evolución más agresiva de la infección en estos enfermos comparados con otras meningoencefalitis bacterianas y se recomienda tratamiento con cefalosporina de tercera generación al menos por 4 semanas sola o en asociación con ciprofloxacina.

We present three inpatients with the diagnosis of meningoencephalitis to Salmonella (Non-typhi D in two and C2 in one) attended in the Intensive Care Unit of our hospital from 1989 to 2006. The evolution of the patients infected with the kind non-typhi D was more severe; one of the patients presented osteomyelitis of the lower third of the humerus to the same germen after a 14-days treatment with cefotaxime, and other had a relapse of the meningoencephalitis after 21 days of treatment with cefotaxime and ampicillin. Like other authors, we observed a more aggressive evolution of the infection in these patients in comparison with other bacterial meningoencephalitis, and recommend the treatment with third generation cephalosporin alone at least during 4 weeks or in association with ciprofloxacin.

Prolonged survival and immune reconstitution after chagasic meningoencephalitis in a patient with acquired immunodeficiency syndrome

Relatamos um caso de meningoencefalite devida ao Trypanosoma cruzi em um paciente com síndrome de imunodeficiência adquirida. O paciente apresentou convulsões e sinais neurológicos focais. O diagnóstico definitivo de meningoencefalite chagásica foi feito pela demonstracão de formas tripomastigotas livres no líquor. Foi iniciado benznidazol com melhora clínica e neurológica. As drogas antiretrovirais melhoraram a imunidade celular e três anos mais tarde o paciente tinha uma boa condicão clínica com reconstituicão imunológica e carga viral indetectável. A meningoencefalite chagásica tem um prognóstico ruim quando o tratamento específico não é iniciado ou quando há demora para substituí-lo. É necessário um alto índice de suspeita para o diagnóstico e tratamento precoces, especialmente em áreas endêmicas para a infeccão pelo Trypanosoma cruzi.

Manifestaciones neurológicas asociadas a infección por Mycoplasma pneumoniae / Neurological clinical manifestations associated to Mycoplasma pneumoniae infection

Mycoplasma pneumoniae, reconocido patógeno respiratorio, es también responsable de numerosas y variadas manifestaciones extrapulmonares, siendo las neurológicas las más frecuentes. Se presenta el caso de una escolar de 8 años, con un síndrome febril prolongado asociado a infección por M. pneumoniae que se complicó con encefalomielitis diseminada aguda. Se reportan otros seis casos con manifestaciones neurológicas: meningitis aséptica (1), meningoencefalitis (1), síndrome de Guillain Barré (1) y parálisis facial (3). La patogenia de las complicaciones neurológicas asociadas con infección por M. pneumoniae es aún desconocida, planteándose que algunas se deben a invasión directa del SNC y aquellas con pródromo prolongado, como encefalomielitis diseminada aguda, síndrome de Guillain Barré y mielitis transversa, obedecerían probablemente a fenómenos autoinmunes. En nuestro medio, en ausencia de RPC para confirmar el diagnóstico de esta infección, éste se fundamenta en la presencia de anticuerpos IgM o ascenso de IgG específica. La utilidad de los antimicrobianos en el control de estas manifestaciones neurológicas es discutida postulándose el uso de terapia inmunomoduladora.

Clinical manifestations and outcome of patients with severe eosinophilic meningoencephalitis presumably caused by Angiostrongylus cantonensis.

The clinical manifestations and outcome of patients with severe eosinophilic meningoencephalitis has never been reported. We reported 11 comatose patients with eosinophilic meningoencephalitis. Most of them presented with subacute to chronic headache and fever, followed by acute coma. Cerebrospinal fluid abnormalities were similar to alert patients with eosinophilic meningitis. None of them had received antihelmintic drug and seven patients were treated with corticosteroids. Ten patients died and one patient is still in a coma. Corticosteroids seem to be ineffective in severe eosinophilic meningitis.