Federico Ballenilla - Academia.edu (original) (raw)

Papers by Federico Ballenilla

Neur[o]graphics, Jul 1, 2017

The American Society of Neuroradiology (ASNR) is accredited by the Accreditation Council for Cont... more The American Society of Neuroradiology (ASNR) is accredited by the Accreditation Council for Continuing Medical Education (ACCME) to provide continuing medical education for physicians. The ASNR designates this enduring material for a maximum of one AMA PRA Category one credit TM. Physicians should claim only the credit commensurate with the extent of their participation in the activity. To obtain credit for this activity, an online quiz must be successfully completed and submitted. ASNR members may access this quiz at no charge by logging on to eCME at http://members.asnr.org. Nonmembers may pay a small fee to access the quiz and obtain credit via http://members.asnr.org/ecme.

Seminars in Ultrasound Ct and Mri, Feb 1, 2008

Neuropediatrics, Jul 24, 2022

Mechanical thrombectomy (MT) in pediatric stroke is supported by studies in adults, but there is ... more Mechanical thrombectomy (MT) in pediatric stroke is supported by studies in adults, but there is controversy regarding younger patients. The main growth of intracranial vessels occurs up to 2 years when there can be more difficulties in MT.Description of the MT performed in a 2-month-old patient—the youngest infant published to date. We also review the literature on MT for stroke in infants.A 2-month-old patient presented with an awakening stroke secondary to an occlusion of the M1 segment of the left middle cerebral artery. A successful MT was performed with an aspiration device without clinically significant complications. An etiological study was completed, and neuroimaging showed focal cerebral arteriopathy. The 3-month outcome was excellent: the pediatric modified Rankin score was 0.Including this case, MT for acute stroke has been reported in only 10 infants. MT was successful in 90%, mostly using adult conventional stent retrievers. There were complications only in patients with mechanical circulatory support (MCS) devices; three patients died due to hemorrhagic transformation after MT and one patient died due to recurrent ischemic stroke.MT seems effective and safe in infants similarly to other pediatric ages. In children under 2 years of age, the presence of comorbidities requiring MCS devices is the main factor underlying poor prognosis.

Poster: "ECR 2019 / C-0183 / Keys for diagnosis of intracranial pressure disorders" by:... more Poster: "ECR 2019 / C-0183 / Keys for diagnosis of intracranial pressure disorders" by: "A. Hilario Barrio, E. Salvador, P. Martin Medina, L. Koren, G. Ayala, A. Martinez de Aragon, J. M. Millan, F. Ballenilla, A. Ramos Gonzalez; Madrid/ES"

Oral poster abstracts, 2021

vs. 23 min, p = 0.64). The median number of passes required for recanalization was lower in the d... more vs. 23 min, p = 0.64). The median number of passes required for recanalization was lower in the direct aspiration group (1 vs. 2, p = 0.01). Although there was no difference in successful recanalization (TICI 2b-3) between the groups (86.1% vs. 88%, p = 0.71), there was a lower rate of complete recanalization (TICI 2c-3) in the direct aspiration group (46% vs. 51.7%, p = 0.007). There was also a lower rate of adjunctive treatments (defined as the use of GP IIb/IIIa inhibitors, P2Y12 inhibitors, and/or salvage angioplasty and/or stenting) required in the direct contact aspiration group (36.1% vs. 44.4%, p < 0.001). There were no differences in discharge NIHSS scores (5 vs. 4, p = 0.21) or in-hospital mortality (22.2% vs. 22.5%, p = 0.92). Conclusions In the NVQI-QOD registry, stent-retriever techniques were associated with higher rates of complete recanalization when compared to direct contact aspiration alone, but successful (TICI 2b-3) recanalization rates were similar. There were no statistically significant differences in procedure times, clinical outcomes at discharge, or in-hospital mortality. Disclosures A.

Revista de Neurología, 2022

Vasculitis primaria del sistema nervioso con afectación arterial y venosa.

Poster: "ECR 2019 / C-0369 / Acute Ischemic Stroke: how to make a brilliant report" by:... more Poster: "ECR 2019 / C-0369 / Acute Ischemic Stroke: how to make a brilliant report" by: "I. NAVAS FERNANDEZ-SILGADO1, L. Ibanez Sanz1, F. Ballenilla1, P. A. Encinas Escobar2, G. GARCIA GALARRAGA1, J. Garcia Prieto1, J. Alonso Sanchez1, M. D. C. CRUZ CONDE1; 1Madrid/ES, 2Madrid /ES"

Poster: "ECR 2006 / C-429 / Imaging of mandibular lesions: Odontogenic and nonodontogenic cy... more Poster: "ECR 2006 / C-429 / Imaging of mandibular lesions: Odontogenic and nonodontogenic cysts and tumors of the jaws" by: "M. A. A. Martin, A. A.-G. Alcala, F. Ballenilla, L. H. Herraiz, K. Bermejo, I. A. Arribas; Madrid/ES"

The Neurohospitalist

Tenecteplase (TNK) is a fibrinolytic drug that is administrated in a single bolus, recommended in... more Tenecteplase (TNK) is a fibrinolytic drug that is administrated in a single bolus, recommended in eligible patients with acute ischemic stroke prior to mechanical thrombectomy. This study explores its usefulness in adverse situations, such as the SARS-CoV-2 pandemic. We conducted a retrospective study involving consecutive patients with suspected acute ischemic stroke treated either with intravenous fibrinolysis with alteplase during 2019 or with TNK (.25 mg/kg) between March 2020 and February 2021. A comparative analysis was made to compare patient treatment times and prognosis. A total of 117 patients treated with alteplase and 92 with TNK were included. No significant differences were observed in age, main vascular risk factors or previous treatments. The median National Institutes of Health Stroke Scale was 8 in the alteplase group and 10 in those treated with TNK (P = .13). Combined treatment with mechanical thrombectomy was performed in 47% in the alteplase group and 46.7% in ...

Neurographics, 2017

Neurocirugía, 2006

Magnetic Resonance in moderate and severe head injury: comparative study of CT and MR findings. C... more Magnetic Resonance in moderate and severe head injury: comparative study of CT and MR findings. Characteristics related to the presence and location of diffuse axonal injury in MR Summary Introduction. Cranial CT has been the most extended evaluation means for patients suffering head trauma. However, it has low sensitivity in the identification of diffuse axonal injury and posterior fossa lesions. Cranial MR is a potentially more sensitive test but difficult to perform in these patients, a fact that has hampered its generalised use. Objective. To compare the identification capability of traumatic intracranial lesions by both diagnostic tests in patients with moderate and severe head injury and to determine which radiological characteristics are associated with the presence of diffuse injury in MR and their clinical severity. Material and methods. 100 patients suffering moderate or severe head injury to whom a MR had been performed in the first 30 days after trauma were included. All clinical variables related to prognosis were registered, as well as the data from the initial CT following Marshall et al., classification. The MR was blindly

Acta Neurochirurgica, 2009

Purpose The objective of this work is twofold: to determine the role of MRI findings in establish... more Purpose The objective of this work is twofold: to determine the role of MRI findings in establishing the prognosis of patients with moderate and severe traumatic brain injury (TBI) admitted to our centre, measured with different outcome scales; and to determine in which patients the information given by MR findings adds prognostic information to that from traditional prognostic factors. Methods One hundred patients suffering moderate or severe head injury in whom MRI had been performed in the first 30 days after trauma were included. The MRI was evaluated by two neuroradiologists who were not aware of the initial CT results or the clinical situation of the patients. Outcome was determined 6 months after head injury by means of the extended version of the Glasgow Outcome Scale. The prognostic capacity of the different factors related to outcome was compared by the analysis of receiver operating characteristic (ROC) curves and the area under the curve (AUC) for each factor. Results There exists a clear relation between the depth of the traumatic lesions shown on MRI, and their classification by the proposed scale, and the outcome of patients suffering traumatic brain injury determined by different scales 6 months after injury. Conclusions The anatomical substrate of TBI depicted by MRI could be a useful prognostic tool in patients suffering moderate and severe head injury. Patients with a score of 4 or less on the motor subscale of the GCS scale are those who could benefit most from the prognostic information provided by MRI.

REC: interventional cardiology (English Edition), 2022

Poster: "ECR 2019 / C-0185 / Neurooncology pending battles: is it possible to differentiate ... more Poster: "ECR 2019 / C-0185 / Neurooncology pending battles: is it possible to differentiate true progression from pseudoprogression? " by: "A. Hilario Barrio, P. Martin Medina, E. Salvador, G. Ayala, L. Koren, A. Martinez de Aragon, F. Ballenilla, J. M. Millan, A. Ramos Gonzalez ; Madrid/ES"

Neuropediatrics

REC: interventional cardiology, 2022