Development of the Circle of Willis Score (COWS) to help guide decision making during acute tandem occlusion treatment: Preliminary analysis.

BACKGROUND: Acute tandem occlusions (TOs) are challenging to treat. Although acute carotid stenting of the proximal lesion is well tolerated, there are certain situations when the practitioner may be wary of acute stenting (bleeding concerns). OBJECTIVE: The purpose of this study was to retrospectively study patients with tandem occlusions who had re-occlusion of the extracranial ICA and develop a Circle of Willis Score (COWS) to help predict which patients could forego acute stenting. METHODS: This is a retrospective review of TO patients with a persistent proximal occlusion following intervention (either expected or unexpected). Pre intervention CTA and intraoperative DSA were reviewed, and each patient was assigned a score 2 (complete COW), 1a (patent A1-Acomm-A1), 1p (patent Pcomm), or 0 (incomplete COW). Findings from the DSA took precedence over the CTA. Two cohorts were created, the complete COW cohort (COWS 2) versus the incomplete COW cohort (COWS 1a,1p, or 0). Angiographic outcomes were assessed using the mTICI score (2b-3) and clinical outcomes were assessed using discharge mRS (good outcome mRS 0-3). RESULTS: Of 68 TO cases, 12 had persistent proximal occlusions. There were 5/12 (42 %) patients in the complete COW cohort, and 7/12 (58 %) in the incomplete COW cohort (5/12 with scores of 1a/1p and 2/12 with a score of 0). In the complete COW cohort, there were 2 ICA-ICA and 3 ICA-MCA occlusions. In the incomplete COW cohort, there was one ICA-ICA occlusion and 6 ICA-MCA occlusions. LKW-puncture was shorter in the complete COW cohort (208 min vs. 464 min, p = 0.16). Successful reperfusion was higher in the complete COW cohort (100 % vs. 71 %). There was a trend toward better clinical outcomes in the complete COW cohort (80 % vs 29 %, p = 0.079). CONCLUSION: The COWS is a simple score that may help predict a successful clinical outcome without proximal revascularization when concerned about performing an acute carotid stent during TO treatment. Evaluation in larger TO cohort is warranted.

Radiomics Analyses to Predict Histopathology in Patients with Metastatic Testicular Germ Cell Tumors before Post-Chemotherapy Retroperitoneal Lymph Node Dissection.

BACKGROUND: The identification of histopathology in metastatic non-seminomatous testicular germ cell tumors (TGCT) before post-chemotherapy retroperitoneal lymph node dissection (PC-RPLND) holds significant potential to reduce treatment-related morbidity in young patients, addressing an important survivorship concern. AIM: To explore this possibility, we conducted a study investigating the role of computed tomography (CT) radiomics models that integrate clinical predictors, enabling personalized prediction of histopathology in metastatic non-seminomatous TGCT patients prior to PC-RPLND. In this retrospective study, we included a cohort of 122 patients. METHODS: Using dedicated radiomics software, we segmented the targets and extracted quantitative features from the CT images. Subsequently, we employed feature selection techniques and developed radiomics-based machine learning models to predict histological subtypes. To ensure the robustness of our procedure, we implemented a 5-fold cross-validation approach. When evaluating the models' performance, we measured metrics such as the area under the receiver operating characteristic curve (AUC), sensitivity, specificity, precision, and F-score. RESULT: Our radiomics model based on the Support Vector Machine achieved an optimal average AUC of 0.945. CONCLUSIONS: The presented CT-based radiomics model can potentially serve as a non-invasive tool to predict histopathological outcomes, differentiating among fibrosis/necrosis, teratoma, and viable tumor in metastatic non-seminomatous TGCT before PC-RPLND. It has the potential to be considered a promising tool to mitigate the risk of over- or under-treatment in young patients, although multi-center validation is critical to confirm the clinical utility of the proposed radiomics workflow.

CT Rendering and Radiomic Analysis in Post-Chemotherapy Retroperitoneal Lymph Node Dissection for Testicular Cancer to Anticipate Difficulties for Young Surgeons.

Post-chemotherapy retroperitoneal lymph node dissection (PC-RPLND) in non-seminomatous germ-cell tumor (NSTGCTs) is a complex procedure. We evaluated whether 3D computed tomography (CT) rendering and their radiomic analysis help predict resectability by junior surgeons. The ambispective analysis was performed between 2016-2021. A prospective group (A) of 30 patients undergoing CT was segmented using the 3D Slicer software while a retrospective group (B) of 30 patients was evaluated with conventional CT (without 3D reconstruction). CatFisher's exact test showed a p-value of 0.13 for group A and 1.0 for Group B. The difference between the proportion test showed a p-value of 0.009149 (IC 0.1-0.63). The proportion of the correct classification showed a p-value of 0.645 (IC 0.55-0.87) for A, and 0.275 (IC 0.11-0.43) for Group B. Furthermore, 13 shape features were extracted: elongation, flatness, volume, sphericity, and surface area, among others. Performing a logistic regression with the entire dataset, n = 60, the results were: Accuracy: 0.7 and Precision: 0.65. Using n = 30 randomly chosen, the best result obtained was Accuracy: 0.73 and Precision: 0.83, with a p-value: 0.025 for Fisher's exact test. In conclusion, the results showed a significant difference in the prediction of resectability with conventional CT versus 3D reconstruction by junior surgeons versus experienced surgeons. Radiomic features used to elaborate an artificial intelligence model improve the prediction of resectability. The proposed model could be of great support in a university hospital, allowing it to plan the surgery and to anticipate complications.

Delayed appearance of basilar trunk small atypical aneurysms in nontraumatic, initially angiogram-negative subarachnoid hemorrhage: A report of three patients.

BACKGROUND: Repeat angiography will identify vascular pathology in approximately 10% of cases following angiogram-negative subarachnoid hemorrhage (anSAH), but small atypical aneurysms of the basilar artery are very uncommon. OBJECTIVE: To report a case series of delayed appearance of nontraumatic basilar artery small atypical aneurysms. METHODS: IRB approval was obtained for this retrospective case series and patient consent was waived. RESULTS: Herein we report three cases of spontaneous anSAH, all of whom had a negative digital subtraction angiogram (DSA) on admission and all of whom had appearance of a small atypical aneurysms of the upper basilar trunk/apex on follow-up imaging (two during the initial admission and one in a delayed fashion). All three patients were ultimately treated with flow diversion (although one patient underwent attempted coiling that was abandoned due to inability to catheterize the aneurysm). CONCLUSION: This report highlights the importance of a repeat DSA in cases of anSAH as well as the importance of scrutinizing the basilar trunk for these very small atypical aneurysms that may go unnoticed.

Estrategia de comunicación externa en los servicios hospitalarios

En el contexto de los servicios hospitalarios es importante considerar lo referente a la comunicación externa, dada la necesidad de orientar adecuadamente el vínculo con el resto de la sociedad; en tal sentido, se requiere organizar y promover relaciones con las demás instituciones. Las vías para lograr este propósito son objeto de atención y estudio desde hace varias décadas. Este artículo tiene como objetivo sistematizar el conocimiento sobre estrategias de comunicación externa en los servicios hospitalarios. Se realizó una revisión narrativa en bancos de datos: BVS, PUBMed, y SciELO, según los descriptores indexados. Fueron incluidos en el análisis siete artículos desarrollados en distintos países. Entre los componentes específicos de este tipo de estrategia, se encuentran los diagnósticos organizacionales de información; políticas; estrategias; productos comunicativos, productos y servicios informacionales; estructuras de información, comunicación y sus gestores; programas de formación de competencias; así como control, monitoreo y evaluación de los resultados de cada actividad, junto a la acción de un equipo multidisciplinario que potencia todo ese desarrollo.

In hospital services context, it is important to consider what refers to external communication, given the need to properly guide the link with the rest of society; in this sense, it is necessary to organize and promote relationships with other institutions. The ways to achieve this purpose have been the object of attention and study for several decades. This article aims to systematize knowledge about external communication strategies in hospital services. A narrative review was carried out in data banks: VHL, PubMed, and SciELO, according to the indexed descriptors. Seven articles developed in different countries were included in the analysis. Among the specific components of this type of strategy, there are organizational information diagnoses; policies; strategies; communicative products, informational products and services; information and communication structures and their managers; skills training programs; as well as control, monitoring and evaluation of the results of each activity, together with the action of a multidisciplinary team that enhances all this development.

Lipomics: A Potential Carrier for the Intravenous Delivery of Lipophilic and Hydrophilic Drugs.

In the present work, we propose the development of a novel carrier that does not need organic solvents for its preparation and with the potential for the intravenous delivery of lipophilic and hydrophilic drugs. Named lipomics, this is a mixed colloid of micelles incorporated within a liposome. This system was designed through ternary diagrams and characterized by physicochemical techniques to determine the particle size, zeta potential, shape, morphology, and stability properties. The lipomics were subjected to electron microscopy (SEM, TEM, and STEM) to evaluate their physical size and morphology. Finally, pharmacokinetic studies were performed by radiolabeling the lipomics with Technetium-99m chelated with BMEDA to evaluate the in vivo biodistribution through techniques of molecular imaging (microSPECT/CT) in rats. Radiolabeling efficiency was used to compare the encapsulation efficiency of the hydrophilic and lipophilic molecules in lipomics and liposomes. According to the results, lipomics are potentially carriers of lipophilic and hydrophilic drugs.

The majority of ruptured aneurysms are small with low rupture risk scores.

BACKGROUND: Understanding the rupture risk of unruptured intracranial aneurysms has important clinical implications given the morbidity and mortality associated with subarachnoid hemorrhage (SAH). The ISUIA, UCAS, and PHASES studies provide rupture risk calculations. OBJECTIVE: We apply the risk calculations to a series ruptured intracranial aneurysms to assess the rupture risk for each aneurysm (had they been discovered in the unruptured state). METHODS: This is a retrospective study of 246 patients with SAH from a ruptured saccular aneurysm. The ISUIA, UCAS, and PHASES calculators were applied to each patient/aneurysm to demonstrate a theoretical annual risk of rupture dichotomized by aneurysm location. RESULTS: The average diameter of the aneurysms was 5.5 ± 3.1 mm. Three quarters (75%) of the aneurysms measured <7 mm and 48.8% were <5 mm. The anterior communicating artery (Acomm) was the most common location of rupture (24.7%). Posterior communicating artery aneurysms (Pcomm) were the third most common at 16.2%. The average ISUIA 1-year rupture risk was 0.46 ± 0.008%. The average UCAS 1-year rupture risk was 0.93% ± 0.01. The annualPHASESrupture risk was0.32 ± 0.004%. The highest risk locations were the vertebral artery (up to 10.3% per year) and superior cerebellar artery (up to 2.7% per year). On average, Acomm aneurysms had 1 year risk no higher than 1.1% and Pcomm aneurysms no higher than 1.2% per year. CONCLUSION: We observed that in a small retrospective series of ruptured aneurysms, the majority were <7 mm and that the theoretical rupture risk of these aneurysms, had they been discovered in the unruptured state, is low (<1% per year). Our study has a number of limitations and these results should be validated in a larger multicenter study.

Artery of Davidoff and Schechter: A Large Angiographic Case Series of Dural AV Fistulas.

The artery of Davidoff and Schechter (ADS) is the only meningeal branch of the posterior cerebral artery (PCA), supplying the medial tentorial margin and posterior portions of the falx. Given its small size, it is rarely identified on angiographic studies, unless enlarged in pathologies such as dural arteriovenous fistulas (DAVFs) or vascularized masses. This artery was first described by Wollschlaeger and Wollschlaeger in 1965, and to date, only a few reports have described its significance. The objective of this study is to report our experience with the ADS in dural fistulas from 2 tertiary medical centers and to emphasize the importance of recognizing this artery during angiographic examination of vascular tentorial and posterior fossa lesions. To our knowledge, this report demonstrates the largest angiographic case series published to date, recognizing a total of 7 patients with ADS arising secondary to a posterior fossa or tentorial DAVF and one of the largest reported series of DAVFs supplied by the ADS treated by endovascular and surgical techniques. Our cases validate the importance of prompt identification of the ADS for the diagnosis as well as endovascular treatment of vascular malformations in the posterior fossa and tentorial region.

Endovascular therapy versus microsurgical clipping of unruptured wide-neck aneurysms: a prospective multicenter study with propensity score analysis.

OBJECTIVE: Numerous techniques have been developed to treat wide-neck aneurysms (WNAs), each with different safety and efficacy profiles. Few studies have compared endovascular therapy (EVT) with microsurgery (MS). The authors' objective was to perform a prospective multicenter study of a WNA registry using rigorous outcome assessments and to compare EVT and MS using propensity score analysis (PSA). METHODS: Unruptured, saccular, not previously treated WNAs were included. WNA was defined as an aneurysm with a neck width ≥ 4 mm or a dome-to-neck ratio (DTNR) < 2. The primary outcome was modified Rankin Scale (mRS) score at 1 year after treatment (good outcome was defined as mRS score 0-2), as assessed by blinded research nurses and compared with PSA. Angiographic outcome was assessed using the Raymond scale with core laboratory review (adequate occlusion was defined as Raymond scale score 1-2). RESULTS: The analysis included 224 unruptured aneurysms in the EVT cohort (n = 140) and MS cohort (n = 84). There were no differences in baseline demographic characteristics, such as proportion of patients with good baseline mRS score (94.3% of the EVT cohort vs 94.0% of the MS cohort, p = 0.941). WNA inclusion criteria were similar between cohorts, with the most common being both neck width ≥ 4 mm and DTNR < 2 (50.7% of the EVT cohort vs 50.0% of the MS cohort, p = 0.228). More paraclinoid (32.1% vs 9.5%) and basilar tip (7.1% vs 3.6%) aneurysms were treated with EVT, whereas more middle cerebral artery (13.6% vs 42.9%) and pericallosal (1.4% vs 4.8%) aneurysms were treated with MS (p < 0.001). EVT aneurysms were slightly larger (p = 0.040), and MS aneurysms had a slightly lower mean DTNR (1.4 for the EVT cohort vs 1.3 for the MS cohort, p = 0.010). Within the EVT cohort, 9.3% of patients underwent stand-alone coiling, 17.1% balloon-assisted coiling, 34.3% stent-assisted coiling, 37.1% flow diversion, and 2.1% PulseRider-assisted coiling. Neurological morbidity secondary to a procedural complication was more common in the MS cohort (10.3% vs 1.4%, p = 0.003). One-year mRS scores were assessed for 218 patients (97.3%), and no significantly increased risk of poor clinical outcome was found for the MS cohort (OR 2.17, 95% CI 0.84-5.60, p = 0.110). In an unadjusted direct comparison, more patients in the EVT cohort achieved a good clinical outcome at 1 year (93.4% vs 84.1%, p = 0.048). Final adequate angiographic outcome was superior in the MS cohort (97.6% of the MS cohort vs 86.5% of the EVT cohort, p = 0.007). CONCLUSIONS: Although the treatments for unruptured WNA had similar clinical outcomes according to PSA, there were fewer complications and superior clinical outcome in the EVT cohort and superior angiographic outcomes in the MS cohort according to the unadjusted analysis. These results may be considered when selecting treatment modalities for patients with unruptured WNAs.

Multi-vendor and multisite evaluation of cerebrovascular reactivity mapping using hypercapnia challenge.

Cerebrovascular reactivity (CVR), which measures the ability of cerebral blood vessels to dilate or constrict in response to vasoactive stimuli such as CO2 inhalation, is an important index of the brain's vascular health. Quantification of CVR using BOLD MRI with hypercapnia challenge has shown great promises in research and clinical studies. However, in order for it to be used as a potential imaging biomarker in large-scale and multi-site studies, the reliability of CO2-CVR quantification across different MRI acquisition platforms and researchers/raters must be examined. The goal of this report from the MarkVCID small vessel disease biomarkers consortium is to evaluate the reliability of CO2-CVR quantification in three studies. First, the inter-rater reliability of CO2-CVR data processing was evaluated by having raters from 5 MarkVCID sites process the same 30 CVR datasets using a cloud-based CVR data processing pipeline. Second, the inter-scanner reproducibility of CO2-CVR quantification was assessed in 10 young subjects across two scanners of different vendors. Third, test-retest repeatability was evaluated in 20 elderly subjects from 4 sites with a scan interval of less than 2 weeks. In all studies, the CO2 CVR measurements were performed using the fixed inspiration method, where the subjects wore a nose clip and a mouthpiece and breathed room air and 5% CO2 air contained in a Douglas bag alternatively through their mouth. The results showed that the inter-rater CoV of CVR processing was 0.08 ± 0.08% for whole-brain CVR values and ranged from 0.16% to 0.88% in major brain regions, with ICC of absolute agreement above 0.9959 for all brain regions. Inter-scanner CoV was found to be 6.90 ± 5.08% for whole-brain CVR values, and ranged from 4.69% to 12.71% in major brain regions, which are comparable to intra-session CoVs obtained from the same scanners on the same day. ICC of consistency between the two scanners was 0.8498 for whole-brain CVR and ranged from 0.8052 to 0.9185 across major brain regions. In the test-retest evaluation, test-retest CoV across different days was found to be 18.29 ± 17.12% for whole-brain CVR values, and ranged from 16.58% to 19.52% in major brain regions, with ICC of absolute agreement ranged from 0.6480 to 0.7785. These results demonstrated good inter-rater, inter-scanner, and test-retest reliability in healthy volunteers, and suggested that CO2-CVR has suitable instrumental properties for use as an imaging biomarker of cerebrovascular function in multi-site and longitudinal observational studies and clinical trials.

Endovascular Therapy Versus Microsurgical Clipping of Ruptured Wide Neck Aneurysms (EVERRUN Registry): a multicenter, prospective propensity score analysis.

OBJECTIVE: Randomized controlled trials have demonstrated the superiority of endovascular therapy (EVT) compared to microsurgery (MS) for ruptured aneurysms suitable for treatment or when therapy is broadly offered to all presenting aneurysms; however, wide neck aneurysms (WNAs) are a challenging subset that require more advanced techniques and warrant further investigation. Herein, the authors sought to investigate a prospective, multicenter WNA registry using rigorous outcome assessments and compare EVT and MS using propensity score analysis (PSA). METHODS: Untreated, ruptured, saccular WNAs were included in the analysis. A WNA was defined as having a neck ≥ 4 mm or a dome/neck ratio (DNR) < 2. The primary outcome was the modified Rankin Scale (mRS) score at 1 year posttreatment, as assessed by blinded research nurses (good outcome: mRS scores 0-2) and compared using PSA. RESULTS: The analysis included 87 ruptured aneurysms: 55 in the EVT cohort and 32 in the MS cohort. Demographics were similar in the two cohorts, including Hunt and Hess grade (p = 0.144) and modified Fisher grade (p = 0.475). WNA type inclusion criteria were similar in the two cohorts, with the most common type having a DNR < 2 (EVT 60.0% vs MS 62.5%). More anterior communicating artery aneurysms (27.3% vs 18.8%) and posterior circulation aneurysms (18.2% vs 0.0%) were treated with EVT, whereas more middle cerebral artery aneurysms were treated with MS (34.4% vs 18.2%, p = 0.025). Within the EVT cohort, 43.6% underwent stand-alone coiling, 50.9% balloon-assisted coiling, 3.6% stent-assisted coiling, and 1.8% flow diversion. The 1-year mRS score was assessed in 81 patients (93.1%), and the primary outcome demonstrated no increased risk for a poor outcome with MS compared to EVT (OR 0.43, 95% CI 0.13-1.45, p = 0.177). The durability of MS was higher, as evidenced by retreatment rates of 12.7% and 0% for EVT and MS, respectively (p = 0.04). CONCLUSIONS: EVT and MS had similar clinical outcomes at 1 year following ruptured WNA treatment. Because of their challenging anatomy, WNAs may represent a population in which EVT's previously demonstrated superiority for ruptured aneurysm treatment is less relevant. Further investigation into the treatment of ruptured WNAs is warranted.

Endovascular management of ruptured choroidal aneurysms associated with moyamoya syndrome: A two-patient case report & review of the literature.

Ruptured choroidal microaneurysms associated with moyamoya syndrome are rare entities. Their small size and deep/distal location make them challenging to treat. Both surgical and endovascular treatment options carry significant risk of stroke. Here we present a two-patient case report of ruptured choroidal microaneurysms treated with Nbutyl cyanoacrylate (nBCA) endovascular embolization utilizing neuromonitoring and provocative testing during one of the cases. We also present a review of the literature evaluating surgical and endovascular treatment of these aneurysms.

Lesión traumática expuesta, compleja y grave de tibia, tratada con fijador externo Álvarez Cambras / Exposed, complex and severe traumatic injury of the tibia treated with Alvarez Cambra external fixation

RESUMEN Con el paulatino incremento de accidentes automovilísticos, de trabajo, y la violencia urbana, las fracturas expuestas y complejas constituyen traumatismos de creciente incidencia y de difícil solución, con largos períodos de convalecencia que ponen en peligro la vida o la conservación del miembro lesionado. Un gran número de ellas dejan secuelas invalidantes. Existen varios tratamientos, entre ellos la fijación externa, utilizando el sistema creado por el profesor Rodrigo Álvarez Cambras, con varias ventajas que proporcionan una mejor evolución. Se realizó este trabajo con el objetivo de mostrar la evolución y los resultados de un paciente ingresado y operado con el diagnóstico de lesión expuesta, compleja y grave de la extremidad inferior, específicamente de tibia. Este presentó varias complicaciones, por lo que se le colocó un aparato de osteosíntesis de fijación externa Álvarez Cambras en el Hospital Provincial Clínico Quirúrgico Docente José Ramón López Tabrane, de Matanzas (AU).

ABSTRACT With the gradual increase of automobile and work accidents as well as urban violence, exposed and complex fractures are traumas of increasing incidence and difficult solution, with long periods of convalescence that endanger the life or the conservation of the injured member. A large number of them leave invalidating sequels. There are several treatments, including external fixation using the system created by Professor Rodrigo Alvarez Cambra, with several advantages that provide a better evolution. The current work was carried out with the objective of showing the evolution and results of a patient who entered the Teaching Provincial Clinical-surgical Hospital Jose Ramon Lopez Tabrane, of Matanzas, and underwent a surgery with the diagnosis of exposed, complex and serious lesion in the lower limb, specifically of tibia. The patient had several complications and so he was put an Alvarez Cambra external fixation osteosynthesis devise (AU).

Tentorial Dural Arteriovenous Fistulas as a Cause of Thalamic Edema: 2 Cases of an Important Differential Diagnosis to Consider.

The differential diagnosis for bilateral thalamic edema is extensive and includes vascular, neoplastic, metabolic, and infectious causes. Of the vascular causes of thalamic edema, arterial and venous infarctions are well-documented, but dural arteriovenous fistulas (dAVFs) are a relatively uncommon and widely underrecognized cause of thalamic edema. Dural AVFs are notoriously difficult to diagnose clinically, especially in the absence of hemorrhage, and cross-sectional imaging findings can be subtle. This can result in a delayed diagnosis, and occasionally, an invasive biopsy for further clarification of a purely vascular disease. In this review, we detail our experience with the imaging diagnosis of dAVF as a cause of thalamic edema and present a short differential of other vascular causes.

Evaluación de los resultados en el tratamiento de los pacientes con fracturas de pilón tibial / Outcomes assessment in the treatment of patients with tibial pylon fractures

RESUMEN Introducción: las fracturas de pilón tibial son un desafío para el cirujano y actualmente existe controversia en cuanto a su tratamiento. Objetivo: evaluar los resultados del tratamiento aplicado. Materiales y métodos: se realizó un estudio observacional, descriptivo, longitudinal, con el universo de estudio de todos los pacientes que fueron atendidos y tratados con fractura de pilón tibial desde el 1 de enero de 2015 al 31 de diciembre de 2016. Se seleccionó una muestra de 27 pacientes. Resultados: hubo un predominio del sexo masculino (78 %), y del grupo de edades de 40 a 49 años para ambos sexos (37 %). Prevalecieron las fracturas producidas por accidentes de tránsito, con 59 %. Las fracturas cerradas fueron las más representadas, con 78 %. El 67 % de los pacientes no presentaron lesiones asociadas y predominaron las fracturas tipo II en el 55 % del total. Se aplicó tratamiento quirúrgico a un 74 % y se logró la consolidación en un 78 % de los casos antes de las 16 semanas. Antes de las 20 semanas se le indicó el apoyo al 78 % de los casos. Se complicaron 13 pacientes, para un 48 % del total. A pesar de ello, como resultado final, fueron evaluados de excelente y bien el 63 % de los pacientes. Conclusiones: la fractura de pilón tibial constituye una lesión de muy difícil manejo para el cirujano traumatólogo de hoy (AU).

ABSTRACT Introduction: tibial pylon fractures are a challenge for the surgeon surgery and currently there is a controversy regarding their treatment. Objective: to assess the outcomes of the applied treatment. Materials and methods: an observational, descriptive, longitudinal study was carried out with the study universe of all the patients who were attended and treated with tibial pylon fracture from January 1st, 2015 to December 31st, 2016. A sample composed by 27 patients was chosen. Results: male sex (78 %) and both-sexes 40-49 age group (37 %) predominated. There was a predominance of fractures caused by traffic accidents with 59 %, being closed fractures the most represented ones, with 78 %. 67 % of the patients did not present associated injuries, being type II fractures predominant in 55 % of the total. 74 % of the cases underwent surgery, achieving consolidation in 78 % of the cases before 16 weeks. Before 20 weeks, 78 % of the cases were indicated to set on their foot, and 13 patients had complications, representing 48 % of the total. In spite of this, 63 % of the patients were evaluated as excellent and well as final outcome. Conclusions: the tibial pylon fracture is an injury of very difficult handling for the today's orthopedic surgeon (AU).

Evaluación de resultados del tratamiento aplicado a adultos mayores con entidades del SOMA en Sala de Rehabilitación Integral / Evaluation of the results of the treatment applied to older adults with OMAS entities in the Comprehensive Rehabilitation Room

RESUMEN Introducción: el paciente anciano está expuesto a múltiples problemáticas con el envejecimiento que van a condicionar en gran manera su independencia y que de forma obligatoria hay que conocer y tratar de solucionar. Objetivo: evaluar el resultado del tratamiento aplicado a adultos mayores con entidades del sistema osteomioarticular en sala de rehabilitación integral. Materiales y Métodos: se realizó un estudio observacional, descriptivo, de tipo longitudinal de los todos los pacientes de 60 y más años, que acudieron al Centro de rehabilitación integral, quedando la muestra constituida por 920 pacientes tratados en el período comprendido entre enero y diciembre de 2007 con enfermedades del Soma. Resultados: predominó el sexo femenino (59 %) en el grupo de edades de 60 a 69 años (48%). Las afecciones ortopédicas fueron las más frecuentes con el 64 % y dentro de estas, la periartritis escapulo humeral. La electroterapia fue el tratamiento más utilizado (38,4%) de los casos. Dentro de los síntomas que presentaron estos pacientes el que más frecuente se encontró fue el de alteraciones en las funciones tanto al inicio y como posterior al tratamiento aplicado. El 93% de los pacientes resultaron rehabilitados, siendo el 86 % los evaluados de excelente al final de tratamiento aplicado. Conclusiones: los resultados en la atención al adulto mayor fueron excelentes en la gran mayoría de los casos con la aplicación del tratamiento rehabilitador (AU).

SUMMARY Introduction: the elder patient is exposed to multiple problems with ageing that will greatly condition their independence and that we will necessarily have to know and try to solve, using all the available resources within our reach. Objective: to assess the result of the treatment applied to older adults with entities of the osteomyoarticular system in the comprehensive rehabilitation room. Materials and methods: an observational, descriptive, longitudinal study of all the patients aged 60 years and over who attended the Comprehensive Rehabilitation Center was carried out, intentionally the sample stayed formed by 920 patients treated in the period between January and December 2007 with diseases of the OMAS. Results: female sex predominated (59%) in the age group of 60 to 69 years (48%). Orthopedic conditions were the most frequent with 64% and within these, scapular-humeral periarthritis. Electrotherapy was the most used treatment (38.4% of the cases). Among the symptoms that these patients presented, the most frequently found was alterations in functions both at the beginning and after the treatment applied. 93 % of the patients were rehabilitated, resulting outstanding 86 % of the assessed patients at the end pf the treatment. Conclusions: the results of elder people care was outstanding in most of the cases with the rehabilitative treatment application (AU).

The Ricochet-Scepter Technique: A Balloon-Assisted Technique to Achieve Outflow Access During Pipeline-Assisted Coil Embolization of a Near-Giant Internal Carotid Artery Ophthalmic Aneurysm.

BACKGROUND: Flow diversion with or without coil embolization has become the first-line treatment for large or giant paraclinoid internal carotid artery intracranial aneurysms. Oftentimes, these sizable aneurysms impose anatomical challenges to endovascular treatment through limiting both distal outflow access and maintenance of distal vessel purchase during catheter reduction, which are required for successful stent placement. Various strategies to obtain and maintain distal access within the parent vessel have been described previously; however, new techniques may need to be employed when more standard maneuvers fail. CASE DESCRIPTION: This paper depicts a case of successful flow diversion of a near-giant internal carotid artery ophthalmic aneurysm in a middle-aged female patient using a balloon-assisted technique, designated the Ricochet-Scepter technique, to achieve distal outflow access followed by secondary system reduction via a stent retriever after standard maneuvers had failed. CONCLUSIONS: Giant, wide-neck aneurysms present treatment challenges that may require using adjunctive devices and advanced endovascular techniques. When routine strategies for gaining distal outflow access fail, the Ricochet-Scepter technique is a viable option for achieving distal access.

Fracturas del extremo proximal de fémur tratadas con Sistema Dinámico de Cadera. Evaluación de resultados / Fractures of the proximal end of femur treated with Dynamic Hip System. Evaluation of results

RESUMEN Introducción: el tratamiento ideal en las fracturas estables del extremo proximal de fémur lo constituye el Sistema Dinámico de cadera. Objetivo: Evaluar la efectividad de su uso en dichas fracturas. Diseño metodológico: se realizó un estudio observacional, descriptivo, de tipo longitudinal de los pacientes intervenidos quirúrgicamente por fractura del extremo proximal de fémur en el Hospital Provincial José Ramón López Tabrane, de Matanzas en el periodo comprendido entre enero del 2013 y diciembre del 2015, quedando la muestra constituida por 128 pacientes. Resultados: encontramos un predominio de las femeninas (60%) y el grupo de edades más representado el de 70 a 79 años con 50 pacientes. Predominaron las fracturas extracapsulares con 122 pacientes, siendo dentro de la variedad del DHS la placa de 130 grados la más usada en 81% de los casos. Se operó el 78 % de los pacientes antes de las 2 horas, presentando 12 complicaciones locales, dentro de las cuales resaltó el colapso de la fractura con 4 pacientes. El 70 % de los pacientes apoyó antes de las 12 semanas, presentando 33 % de fallecidos en el primer año de operado. El 92 % de los pacientes fueron evaluados de bien al final de los resultados. Conclusiones: el Sistema Dinámico de Cadera constituye el método de osteosíntesis ideal en fracturas estables con muy buenos resultados funcionales y con temprana indicación de carga de peso; recomendamos su uso en las fracturas estables del extremo proximal de fémur por sus buenos resultados (AU).

SUMMARY Introduction: the ideal treatment for stable fractures of the proximal end of the femur is the Dynamic Hip System. Objective: to evaluate the effectiveness of its use in such fractures. Methodological design: a longitudinal, descriptive, observational study of patients operated on for fractures of the proximal end of the femur was carried out at the José Ramón López Tabrane Provincial Hospital, Matanzas, between January 2013 and December 2015. The sample consisted of 128 patients. Results: we found a predominance of females (60%) and the most represented age group was 70-79 years old with 50 patients. Extracapsular fractures predominated with 122 patients, being within the DHS variety the 130 degree plate the most used in 81% of the cases. Seventy-eight percent of the patients were operated before 2 hours, presenting 12 local complications, among which the collapse of the fracture stood out with 4 patients. Seventy percent of the patients supported before 12 weeks, presenting 33% of deaths in the first year of surgery. Ninety-two percent of the patients were evaluated as being well at the end of the results. Conclusions: The Dynamic Hip System constitutes the ideal method of osteosynthesis in stable fractures with very good functional results and with early indication of weight load;we recommend its use in stable fractures of the proximal end of the femur because of its good results (AU).

Apuntes biográficos y aportes a las ciencias del profesor Rodrigo Álvarez Cambras / Biographical Notes and Contributions to Science by Professor Rodrigo Álvarez Cambras

Resumen Introducción: El Doctor y profesor Rodrigo Álvarez Cambras, constituye una de las figuras que despuntó desde los mismos inicios del triunfo de la Revolución Cubana en las ciencias ortopédicas con repercusión en las ciencias pedagógicas y en las ciencias de la cultura física y el deporte. Objetivo: Con estas premisas decidimos hacer un Plegable o Volante de fácil manejo para el personal de las ciencias médicas, paramédicas y muy especialmente para el personal que se relaciona con la especialidad de Ortopedia y Traumatología plasmándose los aportes a las ciencias. Materiales y método: Se realiza este trabajo de corte histórico mediante sus datos biográficos y teniendo en cuenta sus principales aportes como médico, pedagogo, científico, como directivo entre otros, creando un instrumento como material complementario avalados por sus más de cinco décadas dedicadas por entero a las ciencias médicas y pedagógicas. Resultados: Se creó un instrumento que estimula al estudio de esta figura con el propósito de valorar su trabajo en beneficio de la sociedad cubana y su contribución y aportes al desarrollo de la pedagogía, el deporte y la medicina, muy específicamente de la Ortopedia y Traumatología universal (AU).

Abstract Introduction: The Doctor and professor Rodrigo Álvarez Cambras, constitutes one of the figures that stood out from the same beginnings of the triumph of the Cuban Revolution in the orthopedic sciences with repercussions in the pedagogic sciences and in the sciences of the physical culture and the sport. Objective: With these premises we decided to make a Foldable or Flyer of easy handling for the personnel of the medical and paramedical sciences and very especially for the personnel that is related to the specialty of Orthopedics and Traumatology being shaped the contributions to the sciences. Materials and method: This historical work is carried out by means of its biographical data and taking into account its main contributions as a doctor, pedagogue, scientist, as a manager among others, creating an instrument as a complementary material guaranteed by its more than five decades dedicated entirely to the medical and pedagogical sciences. Results: An instrument was created that stimulates the study of this figure with the purpose of valuing his work for the benefit of Cuban society and his contribution and contributions to the development of pedagogy, sports and medicine, very specifically of Orthopedics and Universal Traumatology (AU).

Dr. Rodrigo Álvarez Cambras, padre de la Ortopedia en Cuba. Homenaje en su 85 aniversario / Dr. Rodrigo Alvarez Cambras, father of Orthopedics in Cuba. Tribute in his 85th anniversary

El doctor y profesor Rodrigo Álvarez Cambras constituye una de las figuras que despuntó desde los mismos inicios del triunfo de la Revolución Cubana en las ciencias ortopédicas con repercusión en las ciencias pedagógicas. El objetivo fue argumentar porqué se considera al ilustre profesor Rodrigo Álvarez Cambras, el padre de la Ortopedia y la Traumatología en Cuba en el marco de sus 85 de aniversario. Se realizó este trabajo de corte histórico mediante sus datos biográficos y teniendo en cuenta sus principales aportes como médico, pedagogo, científico y directivo, avalados por sus más de cinco décadas dedicadas por entero a las ciencias médicas y pedagógicas. Se estimula al estudio de esta figura con el propósito de valorar su trabajo en beneficio de la sociedad cubana y su contribución al desarrollo de la medicina, específicamente de la Ortopedia y Traumatología universal (AU).

Doctor and professor Rodrigo Álvarez Cambras is one of the figures who exceled in the orthopedic and pedagogical sciences from the first moments after the triumph of the Revolution. The aim of this historic work is to sustain why the illustrious professor Rodrigo Alvarez Cambras is considered the father of Orthopedics and Traumatology in Cuba in the context of his 85th anniversary. The authors review his biographical data and his main contributions as doctor, professor, scientist, and executive, all this activities endorsed by more than five decades entirely devoted to the medical and pedagogic sciences. The study of this personality is promoted with the purpose of assessing his work in benefit of Cuban society and his contribution to the development of Medicine, especially to universal Orthopedics and Traumatology (AU).