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1.
EMBO J ; 40(18): e107336, 2021 09 15.
Article in English | MEDLINE | ID: mdl-34309071

ABSTRACT

During tumor growth-when nutrient and anabolic demands are high-autophagy supports tumor metabolism and growth through lysosomal organelle turnover and nutrient recycling. Ras-driven tumors additionally invoke non-autonomous autophagy in the microenvironment to support tumor growth, in part through transfer of amino acids. Here we uncover a third critical role of autophagy in mediating systemic organ wasting and nutrient mobilization for tumor growth using a well-characterized malignant tumor model in Drosophila melanogaster. Micro-computed X-ray tomography and metabolic profiling reveal that RasV12 ; scrib-/- tumors grow 10-fold in volume, while systemic organ wasting unfolds with progressive muscle atrophy, loss of body mass, -motility, -feeding, and eventually death. Tissue wasting is found to be mediated by autophagy and results in host mobilization of amino acids and sugars into circulation. Natural abundance Carbon 13 tracing demonstrates that tumor biomass is increasingly derived from host tissues as a nutrient source as wasting progresses. We conclude that host autophagy mediates organ wasting and nutrient mobilization that is utilized for tumor growth.


Subject(s)
Autophagy , Energy Metabolism , Neoplasms/etiology , Neoplasms/metabolism , Nutrients/metabolism , Animals , Autophagy/genetics , Cachexia/diagnostic imaging , Cachexia/etiology , Cachexia/pathology , Disease Models, Animal , Disease Progression , Drosophila melanogaster , Humans , Muscle, Skeletal/metabolism , Muscle, Skeletal/physiology , Neoplasms/complications
2.
BMC Med Educ ; 24(1): 367, 2024 Apr 03.
Article in English | MEDLINE | ID: mdl-38570816

ABSTRACT

INTRODUCTION: Psychometrics plays a vital role in evaluating educational research, including the analysis of multiple-choice exams. This study aims to improve the discriminatory ability of the "Médico Interno Residente" (MIR) medical exam in Spain, used to rank candidates for specialized healthcare training, through psychometric analysis. METHODS: We analyzed 2,890 MIR exam questions from 2009 to 2021 (totaling 147,214 exams), categorizing them based on methodology and response type. Evaluation employed classical test theory and item response theory (IRT). Classical test theory determined difficulty and discrimination indices, while IRT assessed the relationship between knowledge levels and question performance. RESULTS: Question distribution varied across categories and years. Frequently addressed knowledge areas included various medical specialties. Non-image-associated clinical cases were the easiest, while case-based clinical questions exhibited the highest discriminatory capacity, differing significantly from image-based case or negative questions. High-quality questions without images had longer stems but shorter answer choices. Adding images reduced discriminatory power and question difficulty, with image-based questions being easier. Clinical cases with images had shorter stems and longer answer choices. CONCLUSIONS: For improved exam performance, we recommend using a clinical case format followed by direct short-answer questions. Questions should be of low difficulty, providing clear and specific answers based on scientific evidence and avoiding ambiguity. Typical clinical cases with key characteristic features should be presented, excluding uncertain boundaries of medical knowledge. Questions should have lengthy stems and concise answer choices, minimizing speculation. If images are used, they should be typical, clear, consistent with the exam, and presented within clinical cases using clinical semiotics and propaedeutics.


Subject(s)
Education, Medical, Undergraduate , Internship and Residency , Medicine , Humans , Educational Measurement/methods , Spain , Education, Medical, Undergraduate/methods
3.
J Card Surg ; 36(5): 1683-1692, 2021 May.
Article in English | MEDLINE | ID: mdl-33032387

ABSTRACT

BACKGROUND: To share the results of a web-based expert panel discussion focusing on the management of acute and chronic aortic disease during the coronavirus (COVID-19) pandemic. METHODS: A web-based expert panel discussion on April 18, 2020, where eight experts were invited to share their experience with COVID-19 disease touching several aspects of aortic medicine. After each talk, specific questions were asked by the online audience, and results were immediately evaluated and shared with faculty and participants. RESULTS: As of April 18, 73.3% answered that more than 200 patients have been treated at their respective settings. Sixty-four percent were reported that their hospital was well prepared for the pandemic. In 57.7%, the percentage of infected healthcare professionals was below 5% whereas 19.2% reported the percentage to be between 10% and 20%. Sixty-seven percent reported the application of extracorporeal membrane oxygenation in less than 2% of COVID-19 patients whereas 11.8% reported application in 5%-10% of COVID-19 patients. Thirty percent of participants reported the occurrence of pulmonary embolism in COVID-19 patients. Three percent reported to have seen aortic ruptures in primarily elective patients having been postponed because of the anticipated need to provide sufficient ICU capacity because of the pandemic. Nearly 70% reported a decrease in acute aortic syndrome referrals since the start of the pandemic. CONCLUSION: The current COVID-19 pandemic has-besides the stoppage of elective referrals-also led to a decrease of referrals of acute aortic syndromes in many settings. The reluctance of patients seeking medical help seems to be a major driver. The number of patients, who have been postponed due to the provisioning of ICU resources but having experienced aortic rupture in the waiting period, is still low. Further, studies are needed to learn more about the influence that the COVID-19 pandemic has on the treatment of patients with acute and chronic aortic disease.


Subject(s)
Aortic Diseases , COVID-19 , Aortic Diseases/epidemiology , Humans , Internet , Pandemics , SARS-CoV-2
4.
Eur J Clin Pharmacol ; 75(8): 1161-1176, 2019 Aug.
Article in English | MEDLINE | ID: mdl-31065742

ABSTRACT

PURPOSE: In the last decades, different criteria have been developed for detecting inappropriate prescription in older patients. In Spain, translations and adaptations of international lists are available but it would be necessary a national list which could cope with the peculiarities of our health system, existing pharmaceutical market, and prescription habits. We propose in this project the creation of a Spanish potentially inappropriate drugs list which could be applicable in our clinical scenario. METHODS: We use a Delphi method involving 25 experts from different backgrounds (Clinical Pharmacology, Geriatrics, Rational Use of Drugs and Pharmacy, Primary Care and Pharmacoepidemiology, and Pharmacovigilance) that were asked to participate in two-round questionnaires. For analysis, current recommendations of Worth and Pigni were applied, and every statement was classified into one of three groups: strong, moderate, or low agreement. Statements with strong agreement were accepted to be part of the inadequate prescription list. Moderate agreement statements were selected to enter the second questionnaire, and statements with low agreement were further analyzed to determine if it was due to heterogeneity or due to dispersion in the answers. RESULTS: The first questionnaire consisted of 160 proposed sentences, of which 106 reached a high agreement, 32 a moderate agreement, and 22 a low agreement. All sentences proposed in the second questionnaire reached a strong agreement. The total accepted sentences were 138. CONCLUSIONS: We offer a list of inadequate prescription in older patients adapted to the Spanish pharmacopeia and according to the prescription habits in our environment.


Subject(s)
Inappropriate Prescribing/prevention & control , Potentially Inappropriate Medication List , Age Factors , Aged , Aged, 80 and over , Delphi Technique , Humans , Spain , Surveys and Questionnaires
5.
Contemp Oncol (Pozn) ; 22(2): 118-123, 2018.
Article in English | MEDLINE | ID: mdl-30150890

ABSTRACT

Epithelioid haemangioendothelioma (EHE) is a rare low-grade vascular neoplasm that is composed of mostly epithelioid cells. EHE may arise as a solitary tumour or in the form of multiple body lesions, and commonly occurs in soft tissues, liver, pleura, lung, peritoneum, lymph nodes, breast, and many other sites. EHE in the cranionasal region is extremely rare. There are very few reports of cases of skull-base EHE. We discuss an extremely rare presentation of an aggressive EHE that originated from the sellar region. Based on literature review, our patient is the first reported case of a giant solitary EHE with prepontine cistern invasion and abducens nerve encroachment mimicking a chondrosarcoma. We treated this rare tumour by near subtotal surgical excision with subsequent radiotherapy, considering that complete tumour resection with free margins in both cavernous sinus and clival region avoiding neural and vascular structure encroachment becomes technically difficult.

6.
Article in English | MEDLINE | ID: mdl-28373187

ABSTRACT

The aim of this in vivo study was to compare the efficacy of vancomycin at standard doses (VAN-SD) to that of VAN at adjusted doses (VAN-AD) in achieving a VAN area under the curve/MIC ratio (AUC/MIC) of ≥400 against three methicillin-resistant Staphylococcus aureus (MRSA) strains with different microdilution VAN MICs in an experimental endocarditis model. The valve vegetation bacterial counts after 48 h of VAN therapy were compared, and no differences were observed between the two treatment groups for any of the three strains tested. Overall, for VAN-SD and VAN-AD, the rates of sterile vegetations were 15/45 (33.3%) and 21/49 (42.8%) (P = 0.343), while the medians (interquartile ranges [IQRs]) for log10 CFU/g of vegetation were 2 (0 to 6.9) and 2 (0 to 4.5) (P = 0.384), respectively. In conclusion, this VAN AUC/MIC pharmacodynamic target was not a good predictor of vancomycin efficacy in MRSA experimental endocarditis.


Subject(s)
Endocarditis/drug therapy , Methicillin-Resistant Staphylococcus aureus/drug effects , Methicillin-Resistant Staphylococcus aureus/pathogenicity , Vancomycin/therapeutic use , Animals , Anti-Bacterial Agents/therapeutic use , Economics, Pharmaceutical , Endocarditis, Bacterial/drug therapy , Humans , Microbial Sensitivity Tests , Rabbits
7.
Neurocirugia (Astur) ; 26(1): 39-42, 2015.
Article in Spanish | MEDLINE | ID: mdl-25441419

ABSTRACT

Elusive tumours in the spine, most of them schwannomas of the cauda equina, have been reported very rarely. We present the case of a woman with a preoperative radiological diagnosis of schwannoma at D10 level in whom a laminectomy was performed to remove the tumour. Although the laminectomy was correctly positioned, there was no tumour upon opening the dura and the laminectomy had to be extended cephalad to find and remove the tumour. Mobile intradural extramedullary spinal tumours, the so-called «elusive tumours¼, occur very rarely, and it is exceptional when they are located in the thoracic spine. Knowing preoperatively which tumour is going to behave in this way is almost impossible. However, in the reported cases there are common features such as symptoms changing with different body positions, small tumour size and weak attachment to nearby structures. Neurosurgeons must be able to resolve this situation when confronted with a negative correctly-positioned laminectomy.


Subject(s)
Neurilemmoma/surgery , Spinal Cord Neoplasms/surgery , Female , Humans , Laminectomy , Middle Aged , Neurilemmoma/pathology , Spinal Cord Neoplasms/pathology , Thoracic Vertebrae
8.
Animals (Basel) ; 14(20)2024 Oct 11.
Article in English | MEDLINE | ID: mdl-39457860

ABSTRACT

This study explores the critical challenges the livestock sector faces, particularly those related to biosecurity, animal welfare, and antibiotic use restrictions. It highlights the need to implement advanced information and communication technologies to enhance operational sustainability and decision-making. We introduce the Biorisk® External platform, a cloud-based visit control system designed to optimize biosecurity management by accurately tracking visitor activity through QR codes and GPS geolocation. During a 6-month study period from July to December 2023, we analyzed visits to 142 different swine production sites and 30 vehicle movement patterns. The analysis revealed trends in visitation patterns and compliance with biosecurity SOPs. The software categorized visits as authorized (A), not authorized with access (NAWA), and not authorized without access (NAWOA), providing a framework to assess biosecurity risks. Additionally, network analysis identified interconnected farms, which were classified as 'superspreaders', highlighting their considerable risk of disease transmission. This study advocates for the integration of digital systems in livestock operations to improve biosecurity measures, facilitate real-time data input, and support informed decision-making. By enhancing biosecurity protocols through technology, the livestock industry can better safeguard animal health, increase operational efficiency, and reduce potential economic losses associated with disease outbreaks.

9.
J Clin Med ; 13(14)2024 Jul 18.
Article in English | MEDLINE | ID: mdl-39064232

ABSTRACT

Background: The present investigation provides a thorough analysis of adverse drug reactions (ADRs) reported in the Database of the Spanish Pharmacovigilance System (FEDRA) for biologic medications primarily indicated for severe refractory asthma, including omalizumab, mepolizumab, reslizumab, benralizumab, dupilumab, and tezepelumab. Our main objective was to identify ADRs not documented in the drugs' Technical Sheets (summary of product characteristics, SmPC), potentially indicating unrecognized risks meriting pharmacovigilance attention. Methods: Data spanning from each drug's market introduction until 22 January 2024, were analyzed, sourced from direct submissions to the Spanish Pharmacovigilance System, industry communications, and literature reviews. We evaluated notifications impartially to ensure a comprehensive review of all the ADRs associated with these medications. Results: This investigation underlines the critical role of post-marketing surveillance in enhancing patient safety. It emphasizes the necessity for healthcare professionals to report ADRs comprehensively to foster a robust pharmacovigilance system. Furthermore, the study highlights gaps between the reported ADRs and the information provided in SmPCs, signaling potential areas for improvement in drug safety monitoring and regulatory oversight. Conclusions: Finally, these findings may contribute to informed decision making in clinical practice and regulatory policy, ultimately advancing patient care and safety in the management of severe uncontrolled asthma.

10.
Neurocirugia (Astur) ; 24(4): 183-7, 2013.
Article in Spanish | MEDLINE | ID: mdl-23517694

ABSTRACT

We report the case of a young patient with subarachnoid haemorrhage secondary to a ruptured blister-like aneurysm. Since this kind of aneurysms have fragile walls without a well-defined neck, their treatment is difficult. We initially planned the deployment of a flow-diverter stent, but an angiogram obtained after 10 days revealed a morphological change of the aneurysm. Therefore, we finally deployed a conventional stent and introduced 2 micro coils into the point of rupture, obtaining a good morphological result without rebleeding. Follow-up at 1 and 6 months did not observe regrowth of the aneurysm. We offer a brief introduction and discussion of this pathology and its treatment.


Subject(s)
Aneurysm, Ruptured/complications , Intracranial Aneurysm/complications , Subarachnoid Hemorrhage/etiology , Aneurysm, Ruptured/diagnostic imaging , Aneurysm, Ruptured/therapy , Cerebral Angiography , Embolization, Therapeutic/instrumentation , Embolization, Therapeutic/methods , Endovascular Procedures , Humans , Hypertension/complications , Intracranial Aneurysm/diagnostic imaging , Intracranial Aneurysm/pathology , Intracranial Aneurysm/therapy , Male , Middle Aged , Rupture, Spontaneous , Stents , Subarachnoid Hemorrhage/diagnostic imaging , Tomography, X-Ray Computed
11.
Vasc Endovascular Surg ; 56(1): 53-57, 2022 Jan.
Article in English | MEDLINE | ID: mdl-34155944

ABSTRACT

Carotid blowout syndrome (CBS) is defined as a rupture of common carotid artery or its branches. Endovascular intervention has been advocated as first line of treatment for CBS. This Case Report describes 5 patients with prior history of head and neck cancer who presented with CBS. Two patients presented as acute, 2 as impending, and one as threatened CBS. The lesions found were pseudoaneurysm and focal vascular irregularities involving the common carotid artery, cervical internal carotid artery and lingual artery. Embolization and occlusion with detachable coils of the artery was used in all patients. Technical success and immediate hemostasis were achieved in all patients. One patient presented transient cranial nerve palsy. No recurrent CBS was reported during the follow-up. In our experience, coil embolization, if possible, is a safe and efficient technique in treatment of CBS secondary to head and neck cancers.


Subject(s)
Carotid Artery Diseases , Embolization, Therapeutic , Head and Neck Neoplasms , Carotid Artery Diseases/diagnostic imaging , Carotid Artery Diseases/therapy , Head and Neck Neoplasms/complications , Head and Neck Neoplasms/diagnostic imaging , Head and Neck Neoplasms/therapy , Humans , Neoplasm Recurrence, Local , Retrospective Studies , Stents , Treatment Outcome
12.
Sci Rep ; 12(1): 2056, 2022 02 08.
Article in English | MEDLINE | ID: mdl-35136137

ABSTRACT

Drosophila melanogaster tumor models are growing in popularity, driven by the high degree of genetic as well as functional conservation to humans. The most common method to measure the effects of a tumor on distant organs of a human cancer patient is to use computed tomography (CT), often used in diagnosing cachexia, a debilitating cancer-induced syndrome most visibly characterized by loss of muscle mass. Successful application of high resolution micro-CT scanning of D. melanogaster was recently reported and we here present the segmentation of all visible larval organs at several stages of tumor development. We previously showed the strong expected reduction in muscle mass as the tumor develops, and we here report a surprisingly strong reduction also in gut and Malpighian tubules (kidney) volume. Time-point of tumor development was found to have a stronger correlation to cachectic organ volume loss than tumor volume, giving support to the previously proposed idea that tumor size does not directly determine degree of cachexia.


Subject(s)
Cachexia/pathology , Drosophila melanogaster/genetics , Gastrointestinal Tract/pathology , Malpighian Tubules/pathology , Neoplasms/pathology , Animals , Disease Models, Animal , Drosophila melanogaster/embryology , Drosophila melanogaster/growth & development , Humans , Larva/growth & development , Organ Size/physiology , X-Ray Microtomography
13.
Arthritis Res Ther ; 24(1): 30, 2022 01 21.
Article in English | MEDLINE | ID: mdl-35063018

ABSTRACT

BACKGROUND: To evaluate the influence of the disease activity on radiographic progression in axial spondyloarthritis (axSpA) patients treated with TNF inhibitors (TNFi). METHODS: The study included 101 axSpA patients from the Spanish Register of Biological Therapy in Spondyloarthritides (REGISPONSERBIO), which had clinical data and radiographic assessment available. Patients were classified into 2 groups based on the duration of TNFi treatment at baseline: (i) long-term treatment (≥4 years) and (ii) no long-term treatment (< 4 years). Radiographs were scored by two readers according to the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS) with known chronology. Disease activity differences between patients' groups at each time point were assessed using a linear mixed-effect model. RESULTS: Radiographic progression was defined as an increase in ≥2 mSASSS units. At inclusion, approximately half of the patients (45.5%) were receiving long-term treatment with TNFi (≥4 years). In this group of subjects, a significant difference in averaged Ankylosing Spondylitis disease Activity Score (ASDAS) across follow-up was found between progressors and non-progressors (2.33 vs 1.76, p=0.027, respectively). In patients not under long-term TNFi treatment (54.5%) though, no significant ASDAS differences were observed between progressors and non-progressors until the third year of follow-up. Furthermore, no significant differences were found in progression status, when disease activity was measured by Bath Ankylosing spondylitis Disease Activity Index (BASDAI) and C reactive protein (CRP). CONCLUSIONS: Patients on long-term TNFi treatment with a mean sustained low disease activity measures by ASDAS presented lower radiographic progression than those with active disease.


Subject(s)
Axial Spondyloarthritis , Spondylarthritis , Spondylitis, Ankylosing , Disease Progression , Humans , Severity of Illness Index , Spine/diagnostic imaging , Spondylarthritis/diagnostic imaging , Spondylarthritis/drug therapy , Spondylitis, Ankylosing/diagnostic imaging , Spondylitis, Ankylosing/drug therapy , Tumor Necrosis Factor Inhibitors/therapeutic use
14.
Exp Parasitol ; 124(3): 258-64, 2010 Mar.
Article in English | MEDLINE | ID: mdl-19854174

ABSTRACT

Understanding the impact of intracellular pathogens on the behavior of their host cells is key to designing new interventions. We are interested in how Leishmania alters the electrical function of the plasma membrane of the macrophage it infects. The specific question addressed here is the impact of Leishmania infection on macrophage membrane properties during the first 12h post-infection. A decrease of 29% in macrophage membrane capacitance at 3h post-infection indicates that the phagolysosome membrane is donated on entry by the macrophage plasma membrane. Macrophage membrane potential depolarized during the first 12h post-infection, which associated with a decreased inward potassium current density, changed in inward rectifier conductance and increased outward potassium current density. Decreased membrane capacitance and membrane potential, with no changes in ion current density, were found in macrophages after phagocytosis of latex beads. Therefore we suggest that the macrophage membrane changes observed during early Leishmania infection appear to be associated with the phagocytic and activation processes.


Subject(s)
Leishmania mexicana/physiology , Macrophages/parasitology , Phagocytosis/physiology , Animals , Cell Line , Cell Membrane/physiology , Electric Capacitance , Electrophysiology , Macrophages/physiology , Membrane Potentials , Mice , Microspheres , Surface Properties
15.
Cerebrovasc Dis Extra ; 10(2): 50-58, 2020.
Article in English | MEDLINE | ID: mdl-32580191

ABSTRACT

INTRODUCTION: Acute ischemic strokes with tandem occlusions, which represent 10-20% of all ischemic strokes, have a particularly poor prognosis. Since emergent treatment of tandem lesions has not been specifically addressed in randomized trials, there is an absence of standardized management. OBJECTIVE: We sought to assess the efficacy and safety of acute endovascular treatment in stroke due to tandem occlusions in our center and compare the results with previous reports. METHODS: From a prospective registry we analyzed data of 99 consecutive patients (males: 77.7%, mean age ± SD: 67.5 ± 9.5 years) with stroke due to tandem occlusions who underwent treatment with emergent carotid stenting and intracranial mechanical thrombectomy. Successful recanalization was defined as a TICI score of 2b-3 and a good functional outcome was defined as a modified Rankin scale score ≤2 at 90 days. Symptomatic intracranial hemorrhage (sICH) was considered when associated with worsening on the National Institutes of Health Stroke Scale (≥4 points). RESULTS: A successful recanalization rate was achieved in 87.8 and 48.5% of the patients had a good functional outcome. sICH and mortality rates were 12.1 and 20.2%, respectively, and 21.2% of the patients received combined treatment with intravenous thrombolysis, which did not affect neither the prognosis nor the recanalization or sICH rates. The time from symptom onset to recanalization and the degree of recanalization were the main factors associated with prognosis and the occurrence of sICH. CONCLUSIONS: Our results suggest that endovascular treatment with emergent carotid stenting and intracranial thrombectomy in patients with acute stroke due to tandem occlusions is an effective and safe procedure.


Subject(s)
Angioplasty, Balloon , Carotid Stenosis/therapy , Thrombectomy , Aged , Aged, 80 and over , Angioplasty, Balloon/adverse effects , Angioplasty, Balloon/instrumentation , Carotid Stenosis/diagnostic imaging , Carotid Stenosis/physiopathology , Databases, Factual , Disability Evaluation , Female , Humans , Intracranial Hemorrhages/etiology , Male , Middle Aged , Prospective Studies , Recovery of Function , Registries , Risk Factors , Spain , Stents , Thrombectomy/adverse effects , Time Factors , Treatment Outcome
16.
Rev Esp Geriatr Gerontol ; 55(3): 156-159, 2020.
Article in Spanish | MEDLINE | ID: mdl-32063402

ABSTRACT

BACKGROUND AND OBJECTIVE: The Drug Technical Data Sheet should contribute to a safe and effective use of medications in the elderly, providing accurate information on the prescription, on the possible benefits or risks of the medications, or failing that, communicating the lack of information on their use in this group. The aim of this article was to quantify the specific information for people over 65 years of age included in the data sheets of the drugs available in Spain, and enables an adequate prescription in this population. MATERIALS AND METHODS: A multidisciplinary group reviewed all the Technical Data Sheets of drugs approved by the Spanish Agency for Medicines and Health Devices (AEMPS). The quality of the information was classified into 4 categories: information specifically referring to the population over 65 years old; information specifically referring to the population over 80 years old; recommendations not specific to the elderly; and specific information for the elderly. RESULTS: A total of 1,462 Technical Sheets were reviewed, of which 48% had information regarding prescription in the elderly. Information on the use in patients over 80 years old was present in 1.23% of the sheets. Only 6.83% of all the sheets reviewed included specific recommendations for the elderly. CONCLUSIONS: There is little specific information regarding prescription in the elderly in the technical data sheets of drugs prescribed/sold in Spain. To improve knowledge in this field, data must be provided in the sheets that are based on the scientific literature, clinical trials for the elderly, or pharmacovigilance studies focused on this population.


Subject(s)
Drug Labeling/standards , Drug Prescriptions/standards , Age Factors , Aged , Aged, 80 and over , Drug Labeling/statistics & numerical data , Humans , Patient Safety , Quality Improvement , Spain
17.
Interv Neuroradiol ; 25(5): 521-529, 2019 Oct.
Article in English | MEDLINE | ID: mdl-30939955

ABSTRACT

INTRODUCTION: The Neuroform Atlas Stent System is a recently introduced modification of the original Neuroform Stent System consisting of a hybrid design with open and closed cells. Initial experience, technical considerations and treatment outcomes including 1-year follow-up using the Atlas stent in combination with coil embolization are reported. MATERIAL AND METHODS: Thirty patients with 30 unruptured aneurysms were treated with stent reconstruction. Immediate, 4-month and 12-month post-treatment angiography and clinical assessment were performed. DISCUSSION: In 29 cases, the stents were delivered and positioned without difficulty in deployment. Technical complications occurred in one patient related to advancement of the stent during delivery. One procedure-related clinical complication occurred with no permanent neurological deficit. On immediate post-treatment angiography, 29 of 30 aneurysms showed Raymond Class I or Class II occlusion. At 1-year follow-up, all 30 patients were clinically stable and 18 of 30 aneurysms showed Raymond Class I complete occlusion. Retreatment was performed in two patients with residual aneurysm. CONCLUSIONS: The Atlas stent is technically safe and simple to implant and has a low thrombogenic potential. We experienced fewer problems associated with deployment and implantation, thromboembolic complications and hemorrhagic events compared with other types of stents, including braided stents. However, because of its low thrombogenic potential, partially occluded aneurysms or those with aneurysm remnants do not progress to complete occlusion.


Subject(s)
Intracranial Aneurysm/surgery , Neurosurgical Procedures/methods , Stents , Aged , Aged, 80 and over , Angiography, Digital Subtraction , Endovascular Procedures , Equipment Design , Female , Follow-Up Studies , Humans , Intracranial Aneurysm/diagnostic imaging , Male , Middle Aged , Neurosurgical Procedures/adverse effects , Postoperative Complications/therapy , Treatment Outcome
18.
Med Clin (Barc) ; 130(6): 210-2, 2008 Feb 23.
Article in Spanish | MEDLINE | ID: mdl-18346410

ABSTRACT

BACKGROUND AND OBJECTIVE: Rheumatoid arthritis (RA) is characterized by high cardiovascular (CV) mortality, which seems related to systemic inflammation. Our aim was to quantify carotid atherosclerosis in RA and its relationship with the disease. PATIENTS AND METHOD: 73 RA patients and the same number of sex and age matched controls were enrolled, without history of cardiovascular events. Carotid intima-media thickness (IMT) and plaques were measured by ultrasonography. Its relationship with risk factors (RF), rheumatic disease characteristics, and inflammatory markers were analysed. RESULTS: Controls showed higher body mass index (BMI) and dyslipidemia. There were no differences in other risk factors or IMT. Age (p = 0.001), sex (p = 0.02), BMI (p = 0.002), waist perimeter (p = 0.001), and hypertension (p = 0.005) had a relationship with IMT. Among disease characteristics, only time elapsed since RA diagnosis was associated with IMT. CONCLUSIONS: There was not an increased carotid subclinical atherosclerosis in patients with RA, beyond the effects of classical RF.


Subject(s)
Arthritis, Rheumatoid/complications , Carotid Artery Diseases/epidemiology , Carotid Artery Diseases/etiology , Case-Control Studies , Female , Humans , Male , Middle Aged , Prevalence
19.
BMJ Open ; 8(2): e018036, 2018 02 10.
Article in English | MEDLINE | ID: mdl-29440154

ABSTRACT

INTRODUCTION: Traditional and transcatheter surgical treatments of severe aortic valve stenosis (SAVS) are increasing in parallel with the improved life expectancy. Recent randomised controlled trials (RCTs) reported comparable or non-inferior mortality with transcatheter treatments compared with traditional surgery. However, RCTs have the limitation of being a mirror of the predefined inclusion/exclusion criteria, without reflecting the 'real clinical world'. Technological improvements have recently allowed the development of minimally invasive surgical accesses and the use of sutureless valves, but their impact on the clinical scenario is difficult to assess because of the monocentric design of published studies and limited sample size. A prospective multicentre registry including all patients referred for a surgical treatment of SAVS (traditional, through full sternotomy; minimally invasive; or transcatheter; with both 'sutured' and 'sutureless' valves) will provide a 'real-world' picture of available results of current surgical options and will help to clarify the 'grey zones' of current guidelines. METHODS AND ANALYSIS: European Aortic Valve Registry is a prospective observational open registry designed to collect all data from patients admitted for SAVS, with or without coronary artery disease, in 16 cardiac surgery centres located in six countries (France, Germany, Italy, Spain, Switzerland and UK). Patients will be enrolled over a 2-year period and followed up for a minimum of 5 years to a maximum of 10 years after enrolment. Outcome definitions are concordant with Valve Academic Research Consortium-2 criteria and established guidelines. Primary outcome is 5-year all-cause mortality. Secondary outcomes aim at establishing 'early' 30-day all-cause and cardiovascular mortality, as well as major morbidity, and 'late' cardiovascular mortality, major morbidity, structural and non-structural valve complications, quality of life and echocardiographic results. ETHICS AND DISSEMINATION: The study protocol is approved by local ethics committees. Any formal presentation or publication of data will be considered as a joint publication by the participating physician(s) and will follow the recommendations of the International Committee of Medical Journal Editors for authorship. TRIAL REGISTRATION NUMBER: NCT03143361; Pre-results.


Subject(s)
Aortic Valve Stenosis/mortality , Aortic Valve Stenosis/surgery , Aortic Valve/surgery , Coronary Artery Disease/complications , Cause of Death , Europe , Follow-Up Studies , Heart Valve Prosthesis Implantation/methods , Humans , Logistic Models , Minimally Invasive Surgical Procedures , Prospective Studies , Quality of Life , Registries , Research Design , Treatment Outcome
20.
J Neurointerv Surg ; 8(6): 586-590, 2016 06.
Article in English | MEDLINE | ID: mdl-25994940

ABSTRACT

OBJECTIVE: To retrospectively analyze the complications and outcome of the endovascular treatment of ruptured microaneurysms compared with the treatment of ruptured larger aneurysms. METHODS: 40 ruptured cerebral microaneurysms treated by endovascular techniques were selected retrospectively and compared with 207 larger ruptured cerebral aneurysms treated by endovascular techniques during the same time period. Medical charts and imaging studies were reviewed to analyze baseline clinical and epidemiologic characteristics, procedural complications, and clinical outcomes RESULTS: Cerebral microaneurysms had a higher incidence of intraoperative technical ruptures (13.5% vs 2.9%, p<0.005). The number of thromboembolic complications was not increased. Patient prognosis was similar for the two groups (mean modified Rankin Scale score 1.81 vs 2.09, p>0.1). CONCLUSIONS: Coiling of cerebral microaneurysms has a reasonable safety profile with good clinical outcomes, similar to coiling of larger aneurysms. In our experience, the systematic use of remodeling balloons, operator experience, and the ability to manage complications are the reasons for the satisfactory results.

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