Objective: To determine the utility of intraoperative angiography (IOA) to detect residual lesions after surgical repair of arteriovenous malformations (AVM) and intracranial aneurysms (ICA). Methods: This is a case series including 778 patients from November 1993 to April 2001; of which 477 underwent surgical intervention. IOA was used in 119 cases. Results: A total of 119 cases were analyzed, 105 patients with AVM (88.2%) and 14 with an aneurysm (11.8%). The mean age was 35 years (range 6 - 69) and males represented 52% of the cases. Both AVM and aneurysms occurred in 17 cases (14.3%). Giant paraclinoid aneurysm was the most common aneurysm (71.3%), whereas supratentorial and grade 3 Spetzler-Martin AVM represented 83.3% and 73.3% of the cases, respectively. A residual lesion was was detected in 7 cases, of which 5 were residual nidus of an AVM and 2 remnant aneurysms. IOA-relate...

Durante la pandemia COVID-19 se ha incrementado el uso de la telemedicina y de plataformas virtuales en el campo de la medicina, por ello, en nuestra institución contamos con un sistema multicámara que permite la visualización en vivo de procedimientos endovasculares. Se realizaron once casos de aneurismas, malformaciones arteriovenosas y hematomas subdurales crónicos que fueron tratados y transmitidos en vivo sin problemas técnicos a través de la plataforma Zoom®. El tiempo promedio de transmisión y del número de participantes fue de 2.5 horas y 6 participantes, respectivamente. En todos los casos se discutió la técnica empleada y las complicaciones ocurridas. El aprendizaje remoto con plataformas en línea es hoy en día una herramienta importante, pero no un sustituto del aprendizaje práctico para procedimientos endovasculares. Recomendamos su implementación durante la pa...

During the COVID-19 pandemics there has been a substantial increase in the use of telemedicine and virtual platforms in the medical field. For this reason, we have in our institution a multicamera system that allows us live visualizing endovascular procedures. Eleven cases dealing with aneurysms, arteriovenous malformations and chronic subdural hematomas were treated and broadcasted live with no technical problems using the Zoomâ platform. The average time for transmissions was 2.5 hours, and the average number of participants was 6 persons. The used technique and occurring complications were discussed for all cases. Remote learning using online platforms is nowadays a very important tool, but it is not a substitute for practical learning when performing endovascular procedures. We recommend to implement such techniques during COVID-19 pandemics as a temporary substitute for live learni...

Durante la pandemia COVID-19 se ha incrementado el uso de la telemedicina y de plataformas virtuales en el campo de la medicina, por ello en nuestra institución contamos con un sistema multicámara que permite la visualización en vivo de procedimientos endovasculares. Se realizaron once casos de aneurismas, malformaciones arteriovenosas y hematomas subdurales crónicos que fueron tratados y transmitidos en vivo sin problemas técnicos a través de la plataforma Zoom®. El tiempo promedio de transmisión y del número de participantes fue de 2.5 horas y 6 participantes, respectivamente. En todos los casos se discutió la técnica empleada y las complicaciones ocurridas. El aprendizaje remoto con plataformas en línea es hoy en día una herramienta importante, pero no un sustituto del aprendizaje práctico para procedimientos endovasculares. Recomendamos su implementación durante la pan...

During the COVID-19 pandemics there has been a substantial increase in the use of telemedicine and virtual platforms in the medical field. For this reason, we have in our institution a multicamera system that allows us live visualizing endovascular procedures. Eleven cases dealing with aneurysms, arteriovenous malformations and chronic subdural hematomas were treated and broadcasted live with no technical problems using the Zoomâ platform. The average time for transmissions was 2.5 hours, and the average number of participants was 6 persons. The used technique and occurring complications were discussed for all cases. Remote learning using online platforms is nowadays a very important tool, but it is not a substitute for practical learning when performing endovascular procedures. We recommend to implement such techniques during COVID-19 pandemics as a temporary substitute for live learni...

El hematoma subdural crónico (HSDC) es una patología neuroquirúrgica frecuente, con una recurrencia de hasta el 30% de los casos. La embolización de la arteria meníngea media (AMM) es una estrategia de manejo adyuvante para disminuir la recidiva, especialmente en pacientes con factores de riesgo para recurrencia, y tiene una baja tasa de complicaciones. Presentamos el caso de unvarón de 83 años con antecedente de anticoagulación, que es admitido en centro sanitario por presentar hemiparesia derecha, disartria y alteración de la marcha, con un tiempo de enfermedad de una semana. Se realizó trepanación y evacuación del HSDC sin complicaciones. Un mes después retornó por recidiva del HSDC, por lo que se realizó trepanación y evacuación adecuada del HSDC, seguida de embolización de la AMM ipsilateral. El control a los dos meses mostró ausencia de recidiva, con mejoría neu...

Chronic subdural hematoma (CSDH) is a frequent neurosurgical condition, which may develop recurrence in up to 30% of all cases. Embolization of the middle meningeal artery (MMA) is an adjuvant management strategy for reducing recurrence, especially in patients with risk factors, and it has a low complication rate. We present the case of an 83-year old male with history of anticoagulation, who was admitted in a healthcare facility because of right hemiparesis, dysarthria and gait impairment, and he had been sick for one week. A trepanation and CSDH evacuation were uneventfully performed. One month later, the patient was brought back because of CSDH recurrence, so another trepanation and adequate CSDH evacuation were performed, followed by embolization of the ipsilateral MMA. A control assessment after two months revealed absenceof recurrence and neurological improvement. We conclude that ...

Chronic subdural hematoma (CSDH) is a frequent neurosurgical condition, which may develop recurrence in up to 30% of all cases. Embolization of the middle meningeal artery (MMA) is an adjuvant management strategy for reducing recurrence, especially in patients with risk factors, and it has a low complication rate. We present the case of an 83-year old male with history of anticoagulation, who was admitted in a healthcare facility because of right hemiparesis, dysarthria and gait impairment, and he had been sick for one week. A trepanation and CSDH evacuation were uneventfully performed. One month later, the patient was brought back because of CSDH recurrence, so another trepanation and adequate CSDH evacuation were performed, followed by embolization of the ipsilateral MMA. A control assessment after two months revealed absenceof recurrence and neurological improvement. We conclude that ...

Introducción: Los aneurismas tipo blíster son aneurismas pequeños, complejos, menores de 3mm, con alta tasa de morbilidad y mortalidad, así como de resangrado y recurrencia. Son difíciles de tratar y se han propuesto técnicas microquirúrgicas y endovasculares, siendo estas últimas las de menor tasa de complicaciones. Caso Clínico: Mujer de 74 años, ingresa con 6 horas de evolución de trastorno de sensorio brusco. La tomografía muestra hemorragia subaracnoidea difusa a predominio izquierdo. Se le realiza una angiografía cerebral que evidencia un aneurisma blíster de la trifurcación de la arteria cerebral media izquierda. Se emboliza con técnica de remodeling y coils, logrando obliterar la totalidad del aneurisma. Conclusión: Los aneurismas tipo blíster son aneurismas complejos y raros, siendo la terapia endovascular una alternativa segura y eficaz con menor tasa de compl...

El abordaje transradial está ganando territorio en el campo neuroendovascular para procedimientos diagnósticos y terapéuticos. Menos complicaciones, menor tiempo hospitalario y mayor confort del paciente son características de este abordaje. Sin embargo, la transición del abordaje femoral clásico al abordaje radial es difícil de lograr en instituciones con protocolos establecidos. Presentamos nuestra experiencia inicial utilizando el abordaje transradial para angiografía cerebral diagnóstica realizados exitosamente logrando la cateterización de todos los vasos supra-aórticos

Transradial approach for cerebral diagnostic angiography is gaining territory in the neuroendovascular field for diagnostic and therapeutic procedures. Less complication rates, less hospital stay and patient comfort are some features of this approach. Nevertheless, the transition from the classic femoral approach to the radial approach is difficult to achieve in institutions with established protocols. We present our initial experience using the transradial approach for cerebral diagnostic angiography performed successfully achieving catheterization of the supra-aortic vessels.

Introduction: Blister-like aneurysms are small, complex, smaller than 3mm, with high rate of morbidity and mortality, as well as rebleeding and recurrence. They are difficult to treat and microsurgical and endovascular techniques are current treatment modalities. Endovascular technique has the lowest rate of complications. Clinical case: 74-year-old woman, admitted with 6 hours of sudden sensory disorder. The CT scan shows diffuse subarachnoid hemorrhage predominantly on the left side. A cerebral angiography showed a blister-like aneurysm of the left middle cerebral artery trifurcation. The patient was treated with coiling and remodeling technique, achieving a complete occlusion. Conclusion: Blister-like aneurysms are complex and rare, whereas endovascular therapy is a safe and effective alternative with low complication rate.

Transradial approach for cerebral diagnostic angiography is gaining territory in the neuroendovascular field for diagnostic and therapeutic procedures. Less complication rates, less hospital stay and patient comfort are some features of this approach. Nevertheless, the transition from the classic femoral approach to the radial approach is difficult to achieve in institutions with established protocols. We present our initial experience using the transradial approach for cerebral diagnostic angiography performed successfully achieving catheterization of the supra-aortic vessels.

Introduction: Blister-like aneurysms are small, complex, smaller than 3mm, with high rate of morbidity and mortality, as well as rebleeding and recurrence. They are difficult to treat and microsurgical and endovascular techniques are current treatment modalities. Endovascular technique has the lowest rate of complications. Clinical case: 74-year-old woman, admitted with 6 hours of sudden sensory disorder. The CT scan shows diffuse subarachnoid hemorrhage predominantly on the left side. A cerebral angiography showed a blister-like aneurysm of the left middle cerebral artery trifurcation. The patient was treated with coiling and remodeling technique, achieving a complete occlusion. Conclusion: Blister-like aneurysms are complex and rare, whereas endovascular therapy is a safe and effective alternative with low complication rate.

Objective: To determine predictors of in-hospital mortality and poor functional prognosis in patients undergoing surgery for intracerebral hemorrhage. Materials and Methods: Clinical records, operative reports, and cerebral CT scans of patients with intracerebral hemorrhage from March 2018 to March 2020 were analyzed. Univariate and multivariate logistic regression analyses were performed for determining independent predictors of in-hospital mortality and poor functional prognosis at discharge. Results: In-hospital mortality was 33.7% (n= 31 patients). Independent predictors for mortality were female sex (OR= 3.01, p= 0.031) and Glasgow score <8 on admission (OR= 3.19, p= 0.031). A poor functional prognosis after the intervention was found in 77 patients (83.7%). Independent risk factors for a poor functional prognosis were score >3 in the modified Rankin scale (OR= 15.5; p= 0.01),...

Objective: To determine predictors of in-hospital mortality and poor functional prognosis in patients undergoing surgery for intracerebral hemorrhage. Materials and Methods: Clinical records, operative reports, and cerebral CT scans of patients with intracerebral hemorrhage from March 2018 to March 2020 were analyzed. Univariate and multivariate logistic regression analyses were performed for determining independent predictors of in-hospital mortality and poor functional prognosis at discharge. Results: In-hospital mortality was 33.7% (n= 31 patients). Independent predictors for mortality were female sex (OR= 3.01, p= 0.031) and Glasgow score <8 on admission (OR= 3.19, p= 0.031). A poor functional prognosis after the intervention was found in 77 patients (83.7%). Independent risk factors for a poor functional prognosis were score >3 in the modified Rankin scale (OR= 15.5; p= 0.01),...

Objetivo: Determinar los resultados clínicos y angiográficos en pacientes con aneurismas intracraneales múltiples tratados endovascularmente en una única sesión. Materiales y Métodos:Se incluyó a todos los pacientes mayores de 18 años con aneurismas múltiples (≥2), rotos o no rotos, tratados con terapia endovascular en una única sesión entre 2019 y 2021. Se recolectaron los datos clínicos y angiográficos. Se determinó la tasa de oclusión inmediata y del seguimiento. La escala de Rankin modificado se usó para valorar el resultado clínico. Resultados: Se trataron 25 pacientes, de los cuales 14 se presentaron con hemorragia subaracnoidea. Se diagnosticaron un total de 78 aneurismas, de los cuales 59 aneurismas fueron tratados. La localización más frecuente fue el segmento oftálmico. La altura máxima promedio fue de 5.2mm, lo cual tuvo diferencia estadística significa...

Objective: To determine clinical and angiographical outcomes in patients with multiple intracranial aneurysms who underwent endovascular therapy in a single session. Materials and Methods: Patients older than 18 years with multiple (≥2) ruptured or non-ruptured aneurysms were included, and all of them underwent endovascular therapy in a single session between 2019 and 2021. Clinical and angiographic data was collected. Immediate occlusion and follow-up data were collected. Rankin modified scale was used for assessing clinical outcomes. Results: Twenty-five patients were treated, and fourteen had subarachnoid hemorrhage. Seventy-eight aneurysms were diagnosed, and 59 of them were treated. The most frequent location was at the ophthalmic segment. Maximum average height was 5.2- mm, which showed significant statistical difference with a ruptured condition (p≤0.02). The main modality for...

Objective: To determine clinical and angiographical outcomes in patients with multiple intracranial aneurysms who underwent endovascular therapy in a single session. Materials and Methods: Patients older than 18 years with multiple (≥2) ruptured or non-ruptured aneurysms were included, and all of them underwent endovascular therapy in a single session between 2019 and 2021. Clinical and angiographic data was collected. Immediate occlusion and follow-up data were collected. Rankin modified scale was used for assessing clinical outcomes. Results: Twenty-five patients were treated, and fourteen had subarachnoid hemorrhage. Seventy-eight aneurysms were diagnosed, and 59 of them were treated. The most frequent location was at the ophthalmic segment. Maximum average height was 5.2- mm, which showed significant statistical difference with a ruptured condition (p≤0.02). The main modality for...