Keyhole endoscópico retrosigmoideo en tumores del ángulo pontocerebeloso. Resultados de una serie / Endoscopic retrosigmoid keyhole approach in cerebellopontine angle tumors. A surgical cohort

Introducción y objetivos Evaluar la seguridad y eficacia del abordaje tipo keyhole endoscópico retrosigmoideo en pacientes con tumores del ángulo pontocerebeloso. Material y método Se expone una serie clínica retrospectiva y unicéntrica de pacientes con tumores del ángulo pontocerebeloso tratados en un periodo de cuatro años, empleando craneotomía retrosigmoidea tipo keyhole con visualización completamente endoscópica. Se analizaron variables preoperatorias, transoperatorias y postoperatorias.Resultados Se estudiaron 40 pacientes con edad promedio de 49,4 años y proporción masculino/femenino de 0,4:1. De ellos, 31 presentaron schwanomas vestibulares (77,5%), cinco meningiomas (12,5%), dos colesteatomas (5,0%) y dos metástasis (5,0%). Predominaron los schwanomas vestibulares tipo Hannover IIIb, IVa y IVb. La resección fue total o casi total en el 92,5% de los pacientes. Se conservó la audición en el 62,5% de los pacientes y el 80% presentó función aceptable del nervio facial a los seis meses. La estadía hospitalaria promedio fue de 7,5 días. Se observó un elevado porcentaje de resección total o casi total y de recuperación funcional. La frecuencia de complicaciones fue baja. Conclusiones El abordaje tipo keyhole endoscópico retrosigmoideo constituyó un procedimiento seguro y eficaz en los pacientes con tumores del ángulo pontocerebeloso seleccionados (AU)

Introduction and objectives To determine the safety and efficacy of endoscopic keyhole surgery in patients with cerebellopontine angle tumors. Materials and methods This was a retrospective study of patients with cerebellopontine angled tumors treated by fully endoscopic retrosigmoid keyhole approach in a tertiary center during a period of four years. Preoperative, transoperative and postoperative variables were analyzed. Results A number of 40 patients were included. The age average was 49.4 years and male/female proportion was 0.4-1. We found 31 vestibular schwannomas (77.5%), five meningiomas (12,5%), two cholesteatomas (5,0%) and two metastases (5.0%). Vestibular schwannomas Hannover type IIIb, IVa and IVb predominated. The surgical resection was total or near-total 92.5% of patients. Hearing preservation rate was 62.5% and acceptable facial function nerve function rate was 80% after six months. Hospital stay was 7.5 days. The total or near total resection and functionally preservation rate was high. Complications were unusual. Conclusions Endoscopic retrosigmoid keyhole approach represented a safe and efficient procedure in selected patients with cerebellopontine angle tumors (AU)

Endoscopic retrosigmoid keyhole approach in cerebellopontine angle tumors. A surgical cohort.

INTRODUCTION AND OBJECTIVES: To determine the safety and efficacy of endoscopic keyhole surgery in patients with cerebellopontine angle tumours. MATERIALS AND METHODS: This was a retrospective study of patients with cerebellopontine angled tumours treated by fully endoscopic retrosigmoid keyhole approach in a tertiary centre during a period of four years. Preoperative, transoperative and postoperative variables were analysed. RESULTS: A number of 40 patients were included. The age average was 49.4 years and male/female proportion was 0.4-1. We found 31 vestibular schwannomas (77.5%), five meningiomas (12.5%), two cholesteatomas (5.0%) and two metastases (5.0%). Vestibular schwannomas Hannover type IIIb, IVa and IVb predominated. The surgical resection was total or near-total 92.5% of patients. Hearing preservation rate was 62.5% and acceptable facial function nerve function rate was 80% after six months. Hospital stay was 7.5 days. The total or near total resection and functionally preservation rate was high. Complications were unusual. CONCLUSIONS: Endoscopic retrosigmoid keyhole approach represented a safe and efficient procedure in selected patients with cerebellopontine angle tumours.

Endoscopic retrosigmoid keyhole approach in cerebellopontine angle tumors. A surgical cohort. / Keyhole endoscópico retrosigmoideo en tumores del ángulo pontocerebeloso. Resultados de una serie.

INTRODUCTION AND OBJECTIVES: To determine the safety and efficacy of endoscopic keyhole surgery in patients with cerebellopontine angle tumors. MATERIALS AND METHODS: This was a retrospective study of patients with cerebellopontine angled tumors treated by fully endoscopic retrosigmoid keyhole approach in a tertiary center during a period of four years. Preoperative, transoperative and postoperative variables were analyzed. RESULTS: A number of 40 patients were included. The age average was 49.4 years and male/female proportion was 0.4-1. We found 31 vestibular schwannomas (77.5%), five meningiomas (12,5%), two cholesteatomas (5,0%) and two metastases (5.0%). Vestibular schwannomas Hannover type IIIb, IVa and IVb predominated. The surgical resection was total or near-total 92.5% of patients. Hearing preservation rate was 62.5% and acceptable facial function nerve function rate was 80% after six months. Hospital stay was 7.5 days. The total or near total resection and functionally preservation rate was high. Complications were unusual. CONCLUSIONS: Endoscopic retrosigmoid keyhole approach represented a safe and efficient procedure in selected patients with cerebellopontine angle tumors.

Endoscopic Treatment of Sphenoid Sinus Mucocele: Case Report and Surgical Considerations.

INTRODUCTION: The paranasal sinuses mucoceles are benign expansive cystic lesions that occur rarely in the sphenoid sinus and contain mucous material enclosed by cylindrical pseudostratified epithelium. OBJECTIVE: To report one case of sphenoid sinus mucocele that occurred with headache and was submitted to surgical treatment through endonasal endoscopy approach. CASE REPORT: 59-year-old male patient with history of increasing frontoorbital, bilateral, fluctuating headache and exophthalmos. There was no other associated clinical abnormality. Computed Tomography (CT) and Magnetic Resonance Image (MRI) scans confirmed an expansive mass of sphenoid sinus, suggesting mucocele. The patient was submitted to endonasal endoscopic surgery with posterior ethmoidotomy, large sphenoidotomy, and marsupialization of the lesion. CONCLUSION: Mucoceles of the sphenoid sinus are a very rare condition with variable clinical and radiological presentation. Surgical treatment is absolutely indicated and early treatment avoids visual damage that can be permanent. Endonasal endoscopic approach with drainage and marsupialization of sphenoid sinus, using a transnasal corridor, is a safe and effective treatment modality.

Tratamiento multimodal e individualizado a pacientes con metástasis encefálica / Multimodal and individualized treatment for patients with brain metastases

Introduction: The treatment of Brain Metastases is palliative and it is ignored the ideal therapeutic combination, constituting this a controversial topic. Objective: To determine the results of the treatment to patient with Brain Metastases according to different modalities. Method: It was carried out a prospective cohort study between april 2010 to april 2013 in the National Institute of Oncology and Radiobiology. It was designated as universe the total of patient with diagnosis of Brain Metastases of primary tumor assisted in consultation of Neurosurgery. The Fischer exact test was used to correlate qualitative variables and the Kaplan Meier curvesto estimate the survival. Results: It was obtained a sample of 42 patients and 84 lesions. The age average was of 53,1 years. The primary lesions prevailed in lung and breast. The used modalities were: Surgery-Whole Brain Radiation Therapy (20 lesions), Whole Brain Radiation Therapy alone (29 lesions), Radiosurgery alone (21 lesions) and Surgery alone (9 lesions). Conclusions: The combinations of Radiosurgery-Whole Brain Radiation Therapy and Surgery-Radiosurgery associated to a better local control. The treatment with Whole Brain Radiation Therapy didn't associate to a better distance control. The overall survival to the 6 months was of 91 percent and to the 12 months of 57 percent. A bigger survival was observed in patient with controlled primary illness and absence of extracraneal metastases. The Surgery presents the biggest number of complications.

Introducción: El tratamiento de la Metástasis Encefálica es paliativo y se desconoce la modalidad o combinación terapéutica óptima, constituyendo éste un tema controvertido. Objetivo: Determinar los resultados del tratamiento a pacientes con Metástasis Encefálica según diferentes modalidades. Método: Se realizó un estudio de cohorte prospectivo durante el período abril de 2010 a abril de 2013 en el Instituto Nacional de Oncología y Radiobiología. Se designó como universo el total de pacientes con diagnóstico de Metástasis Encefálica de neoplasia primaria conocida atendidos en consulta de Neurocirugía. Se utilizó el test exacto de Fischer para correlacionar variables cualitativas y las curvas de Kaplan Meier para estimar la supervivencia. Resultados: Se obtuvo una muestra de 42 pacientes y 84 lesiones. El promedio de edad fue de 53,1 años. Predominaron las lesiones primarias en pulmón y mama. Las modalidades más utilizadas fueron: Cirugía-Radioterapia Holocraneal (20 lesiones), Radioterapia Holocraneal sola (29 lesiones), Radiocirugía sola (21 lesiones) y la Cirugía sola (9 lesiones). Conclusiones: Las combinaciones de Radiocirugía-Radioterapia Holocraneal y Cirugía-Radiocirugía se asociaron a un mejor control local. El tratamiento con Radioterapia Holocraneal no se asoció a un mejor control a distancia. La supervivencia global a los 6 meses fue del 91 por ciento y a los 12 meses del 57 por ciento. Se observó una mayor supervivencia en pacientes con enfermedad primaria controlada y ausencia de metástasis extra craneal. La Cirugía presentó el mayor número de complicaciones.

Tumor gigante en un paciente con melanoma / Giant tumor in a patient with melanoma

Se estudió un paciente masculino, negro, de 17 años de edad, caribeño, aparentemente sano hasta el año 2007 cuando aparece un tumor témporo-parieto-frontal izquierdo de crecimiento rápido, que compromete la cara. Al examen físico se constató, además, piel y mucosas pálidas con desnutrición severa. El diagnóstico histopatológico fue de melanoma maligno de células epiteloides...

The case of a black Caribbean patient aged 17 apparently healthy until 2007 when to appear a left temporal-parietal-frontal tumor of fast growth involving the face. At physical examination authors also confirmed a pale skin and mucosae with a severe malnutrition. The histopathological diagnosis was a malignant melanoma of epithelioid cells...

Tumor gigante en un paciente con melanoma / Giant tumor in a patient with melanoma

Se estudió un paciente masculino, negro, de 17 años de edad, caribeño, aparentemente sano hasta el año 2007 cuando aparece un tumor témporo-parieto-frontal izquierdo de crecimiento rápido, que compromete la cara. Al examen físico se constató, además, piel y mucosas pálidas con desnutrición severa. El diagnóstico histopatológico fue de melanoma maligno de células epiteloides(AU)

The case of a black Caribbean patient aged 17 apparently healthy until 2007 when to appear a left temporal-parietal-frontal tumor of fast growth involving the face. At physical examination authors also confirmed a pale skin and mucosae with a severe malnutrition. The histopathological diagnosis was a malignant melanoma of epithelioid cells(AU)