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Author Guillermo Reyes

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Experimental, Computational, and Dimensional Analysis of the Mechanical Performance of Fused Filament Fabrication Parts.

Iván Rivet, Narges Dialami, Miguel Cervera, Michele Chiumenti, Guillermo Reyes, Marco A Pérez,

Process parameters in Additive Manufacturing (AM) are key factors in the mechanical performance of 3D-printed parts. In order to study their effect, a three-zone model based on the printing pattern was developed. This modelization distinguished three different zones of the 3D-printed part, namely cover, contour, and inner; each zone was ... Read more >>

Polymers (Basel) (Polymers)
[2021, 13(11):]

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Left Atrial Appendage Occlusion during Cardiac Surgery to Prevent Stroke.

Richard P Whitlock, Emilie P Belley-Cote, Domenico Paparella, Jeff S Healey, Katheryn Brady, Mukul Sharma, Wilko Reents, Petr Budera, Andony J Baddour, Petr Fila, P J Devereaux, Alexander Bogachev-Prokophiev, Andreas Boening, Kevin H T Teoh, Georgios I Tagarakis, Mark S Slaughter, Alistair G Royse, Shay McGuinness, Marco Alings, Prakash P Punjabi, C David Mazer, Richard J Folkeringa, Andrea Colli, Álvaro Avezum, Juliet Nakamya, Kumar Balasubramanian, Jessica Vincent, Pierre Voisine, Andre Lamy, Salim Yusuf, Stuart J Connolly, ,

<h4>Background</h4>Surgical occlusion of the left atrial appendage has been hypothesized to prevent ischemic stroke in patients with atrial fibrillation, but this has not been proved. The procedure can be performed during cardiac surgery undertaken for other reasons.<h4>Methods</h4>We conducted a multicenter, randomized trial involving participants with atrial fibrillation and a CHA<sub>2</sub>DS<sub>2</sub>-VASc ... Read more >>

N Engl J Med (The New England journal of medicine)
[2021, 384(22):2081-2091]

Cited: 1 time

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Multidirectional switching behavior by transversely stretching a composite cholesteric elastomer.

Guillermo Reyes, Juan Adrián Reyes,

We have analyzed the propagation of electromagnetic waves impinging obliquely in a hybrid material, made by a cholesteric elastomer slab with spherical metallic inclusions randomly located in the host material. We have carried out an analytical and numerical model which permits us to obtain the reflection and transmission spectra when ... Read more >>

Phys Rev E (Physical review. E)
[2020, 102(3-1):032702]

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Trifecta Bioprosthesis Sudden-Onset Three-Leaflet Detachment.

Guillermo Reyes, Emilio Monguio, MiguelAngel Gomez-Marino, Vicente Gomez-Tello, JoseMaria Cortina,

Acute bioprosthesis failure is an uncommon event that may require urgent surgery. This is even less frequent when it is not associated with endocarditis, thrombus formation, or structural valve deterioration. We describe an acute complete detachment of the 3 leaflets of a Trifecta tissue valve 6 years after implantation in ... Read more >>

Ann Thorac Surg (The Annals of thoracic surgery)
[2021, 111(2):e127-e128]

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COVID-19 "Fulminant Myocarditis" Successfully Treated With Temporary Mechanical Circulatory Support.

Jorge Salamanca, Pablo Díez-Villanueva, Pablo Martínez, Alberto Cecconi, Begoña González de Marcos, Guillermo Reyes, Clara Salas, Javier Segovia, Luis Jesús Jiménez-Borreguero, Fernando Alfonso,

JACC Cardiovasc Imaging (JACC. Cardiovascular imaging)
[2020, 13(11):2457-2459]

Cited: 5 times

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Coaxial Spinning of All-Cellulose Systems for Enhanced Toughness: Filaments of Oxidized Nanofibrils Sheathed in Cellulose II Regenerated from a Protic Ionic Liquid.

Guillermo Reyes, Meri J Lundahl, Serguei Alejandro-Martín, Luis E Arteaga-Pérez, Claudia Oviedo, Alistair W T King, Orlando J Rojas,

Hydrogels of TEMPO-oxidized nanocellulose were stabilized for dry-jet wet spinning using a shell of cellulose dissolved in 1,5-diazabicyclo[4.3.0]non-5-enium propionate ([DBNH][CO<sub>2</sub>Et]), a protic ionic liquid (PIL). Coagulation in an acidic water bath resulted in continuous core-shell filaments (CSFs) that were tough and flexible with an average dry (and wet) toughness of ... Read more >>

Biomacromolecules (Biomacromolecules)
[2020, 21(2):878-891]

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Nitrogen Removal from Domestic Wastewater and the Development of Tropical Ornamental Plants in Partially Saturated Mesocosm-Scale Constructed Wetlands.

Carlos Nakase, Florentina Zurita, Graciela Nani, Guillermo Reyes, Gregorio Fernández-Lambert, Arturo Cabrera-Hernández, Luis Sandoval,

Vertical partially saturated (VPS) constructed wetlands (CWs) are a novel wastewater treatment system for which little information is known about its design parameters and performance under tropical climates. The objective of this study is to evaluate the nitrogen removal process from domestic wastewater and the production of tropical ornamental plants ... Read more >>

Int J Environ Res Public Health (International journal of environmental research and public health)
[2019, 16(23):]

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"A contemporary description of staphylococcus aureus prosthetic valve endocarditis. Differences according to the time elapsed from surgery".

Carmen Sáez, Cristina Sarriá, Isidre Vilacosta, Carmen Olmos, Javier López, Pablo Elpidio García-Granja, Cristina Fernández, Carmen de Las Cuevas, Guillermo Reyes, Lourdes Domínguez, Jose Alberto San Román,

Staphylococcus aureus prosthetic valve endocarditis (SAPVE) has a poor prognosis. There are no large series that accurately describe this entity.This is a retrospective observational study on a prospective cohort from 3 Spanish reference hospitals for cardiac surgery, including 78 definitive episodes of left SAPVE between 1996 and 2016.Fifty percent had ... Read more >>

Medicine (Baltimore) (Medicine)
[2019, 98(35):e16903]

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Omnidirectional optical spectra for a nanocomposite cholesteric elastomer.

Guillermo Reyes, J Adrian Reyes,

We perform a theoretical model for studying the propagation of electromagnetic waves, within a cholesteric elastomer slab, doped with metallic inclusions aleatorily distributed, whose corresponding dielectric properties can be expressed in terms of a resonant effective uniaxial tensor. We have obtained an omnidirectional narrow conducting band and two narrow reflection ... Read more >>

J Phys Condens Matter (Journal of physics. Condensed matter : an Institute of Physics journal)
[2019, 31(32):325701]

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Correction to "Solvent Welding and Imprinting Cellulose Nanofiber Films Using Ionic Liquids".

Guillermo Reyes, Maryam Borghei, Alistair W T King, Johanna Lahti, Orlando J Rojas,

Biomacromolecules (Biomacromolecules)
[2019, 20(5):2159-2165]

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Solvent Welding and Imprinting Cellulose Nanofiber Films Using Ionic Liquids.

Guillermo Reyes, Maryam Borghei, Alistair W T King, Johanna Lahti, Orlando J Rojas,

Cellulose nanofiber films (CNFF) were treated via a welding process using ionic liquids (ILs). Acid-base-conjugated ILs derived from 1,5-diazabicyclo[4.3.0]non-5-ene [DBN] and 1-ethyl-3-methylimidazolium acetate ([emim][OAc]) were utilized. The removal efficiency of ILs from welded CNFF was assessed using liquid-state nuclear magnetic resonance (NMR) spectroscopy and Fourier transform infrared spectroscopy (FTIR). The ... Read more >>

Biomacromolecules (Biomacromolecules)
[2019, 20(1):502-514]

Cited: 2 times

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Role of nitric oxide synthase on brain GABA transaminase activity and GABA levels.

Lourdes A Vega Rasgado, Guillermo Ceballos Reyes, Fernando Vega Díaz,

In an attempt to clarify the controversial role of nitric oxide (NO) in seizures, the effects of NO on brain GABA transaminase (GABA-T) activity and GABA levels were investigated. To this aim, the effects of the substrate (l-arginine) and inhibitors (Nω-nitro-l-arginine methyl ester, 7-nitroindazole) of NO synthase (NOS) on GABA-T ... Read more >>

Acta Pharm (Acta pharmaceutica (Zagreb, Croatia))
[2018, 68(3):349-359]

Cited: 1 time

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[Late atrial dissection and mitral annular pseudoaneurysm after valve replacement. Aetiological characteristics using multidetector CT].

Alberto Vera, Eduardo Pozo, Guillermo Reyes, Pablo Díez-Villanueva, Luis Jesús Jiménez-Borreguero, Fernando Alfonso,

Arch Cardiol Mex (Archivos de cardiologia de Mexico)
[2018, 88(5):517-520]

Cited: 0 times

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Mid-Term Results of Surgical Treatment of Atrial Fibrillation in Valvular Heart Disease Assesed by Speckle Tracking Echocardiography.

Natalia Lorenzo, Irene Mendez, Mikel Taibo, Gianfranco Martinis, Sara Badia, Guillermo Reyes, Rio Aguilar,

<label>BACKGROUND</label>Atrial fibrillation frequently affects patients with valvular heart disease. Ablation of atrial fibrillation during valvular surgery is an alternative for restoring sinus rhythm.<label>OBJECTIVES</label>This study aimed to evaluate mid-term results of successful atrial fibrillation surgical ablation during valvular heart disease surgery, to explore left atrium post-ablation mechanics and to identify predictors ... Read more >>

Arq Bras Cardiol (Arquivos brasileiros de cardiologia)
[2018, 110(4):312-320]

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Partnership models for the establishment of sustainable paediatric cardiac surgical and cardiac intensive care programmes in low- and middle-income countries.

Patricia Bastero, Sandra L Staveski, Bistra Zheleva, Emma Scanlan, Antonio G Cabrera, Aric Araujo, Guillermo Reyes, Carlos M Mery, Alexis Palacios-Macedo, Christian P Brizard,

The care of patients with CHD remains a challenge in low- and middle-income countries. Their health systems have not been able to achieve consistently high performance in this field. The large volume of patients, manpower constraints, inconsistencies in the level and type of background training of the teams caring for ... Read more >>

Cardiol Young (Cardiology in the young)
[2017, 27(S6):S55-S60]

Cited: 2 times

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Outcomes of Aortic Valve Replacement According to Surgical Approach in Intermediate and Low Risk Patients: A Propensity Score Analysis.

Corazon M Calle-Valda, Rio Aguilar, Amparo Benedicto, Anas Sarraj, Emilio Monguio, Daniel Munoz, Nieves De Antonio, Guillermo Reyes,

Previous trials have shown that, among high-risk patients with aortic stenosis, survival rates are similar for transcatheter aortic-valve implantation (TAVI) and surgical aortic valve replacement. The study aimed to compare the outcomes of aortic valve replacement according to the adopted surgical approach in intermediate and low risk patients.This is a ... Read more >>

Heart Lung Circ (Heart, lung & circulation)
[2018, 27(7):885-892]

Cited: 6 times

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New Presentation of Hemolysis After Papillary Muscles Approximation for Mitral Valve Repair.

Anas Sarraj, Corazón-Mabel Calle Valda, Daniel-Edgardo Muñoz, Guillermo Reyes,

Hemolysis is a well-recognized complication after prosthetic valve replacement, especially with perivalvular leaks. Hemolytic anemia associated with mitral valve (MV) repair is less common. We report the case of a young man with severe hemolytic anemia caused by turbulence of blood flow through a very small quadrangle orifice due to ... Read more >>

Ann Thorac Surg (The Annals of thoracic surgery)
[2017, 103(4):e321-e322]

Cited: 1 time

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How Could These Mini Saccular Aneurysms of Ascending Aorta Be Classified?

Anas Sarraj, Daniel-Edgardo Muñoz, Corazón-Mabel Calle Valda, Emilio Monguio, Guillermo Reyes,

The wall of a true aneurysm is composed of all histologic layers of the aorta. A false aneurysm represents a small, contained rupture of aorta followed by bulging of the corresponding area that is usually sustained by a fibrous peel. Aortic dissection is defined as a separation of the lamellae ... Read more >>

Ann Thorac Surg (The Annals of thoracic surgery)
[2017, 103(4):e331-e333]

Cited: 1 time

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Atrioventricular Septum Pseudoaneurysm As Late Complication After Repeated Mitral Valve Replacement.

Pilar Agudo-Quilez, Eduardo Pozo, Amparo Benedicto, Guillermo Reyes, María José Olivera, Paloma Caballero, Luis Jesús Jiménez-Borreguero, Fernando Alfonso,

We report the case of a pulsatile mass found in a patient who presented for a routine echocardiogram. The mass turned out to be an exceedingly rare mitral-subannular pseudoaneurysm involving the membranous atrioventricular septum with systolic expansion protruding into right atrium, discovered late after repeated multiple valve replacement surgery. Although ... Read more >>

Ann Thorac Surg (The Annals of thoracic surgery)
[2017, 103(1):e55-e56]

Cited: 0 times

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Surgical Repair of Huge Left Ventricular Pseudoaneurysm After Sutureless Repair of Free Wall Rupture.

Pablo Díez-Villanueva, Anas Sarraj, Gonzalo Navarrete, Jorge Salamanca, Eduardo Pozo, Guillermo Reyes, Fernando Alfonso,

Left ventricular pseudoaneurysm (LVPsA) is a rare complication after sutureless patch repair of left ventricular free wall rupture (LVFWR), with few cases reported in the literature so far. We present the case of a young patient who early developed a huge LVPsA and moderate mitral regurgitation after sutureless patch repair ... Read more >>

Ann Thorac Surg (The Annals of thoracic surgery)
[2017, 103(2):e157-e159]

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Complete section of anterior mitral valve during percutaneous valvuloplasty.

Amparo Benedicto, Guillermo Reyes, Rio Aguilar, Fernando Alfonso,

EuroIntervention (EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology)
[2015, 11(8):e1-2]

Cited: 0 times

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Modulation of brain glutamate dehydrogenase as a tool for controlling seizures.

Lourdes A Vega Rasgado, Guillermo Ceballos Reyes, Fernando Vega Díaz,

Glutamate (Glu) is a major excitatory neurotransmitter involved in epilepsy. Glu is synthesized by glutamate dehydrogenase (GDH, E.C. 1.4.1.3) and dysfunction of the enzymatic activity of GDH is associated with brain pathologies. The main goal of this work is to establish the role of GDH in the effects of antiepileptic ... Read more >>

Acta Pharm (Acta pharmaceutica (Zagreb, Croatia))
[2015, 65(4):443-452]

Cited: 4 times

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High intensity focused ultrasound ablation for atrial fibrillation: results from the National Spanish Registry.

Guillermo Reyes, Xavier Ruyra, Francisco Valderrama, Antonio Jimenez, Dario Duran, Enrique Perez, Tomas Daroca, Javier Moya, Ulises Ramirez, Gonzalo Aldamiz,

<h4>Background</h4>A National Spanish Registry to compile all patients treated with high intensity focused ultrasound (HIFU) energy for atrial fibrillation (AF) was created to evaluate the safety and efficacy of AF surgical ablation.<h4>Methods</h4>A national Spanish registry was created, and ten hospitals using HIFU to ablate AF joined it. A total of ... Read more >>

Minerva Cardioangiol (Minerva cardioangiologica)
[2016, 64(5):501-506]

Cited: 0 times

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Comments on the 2014 ESC/EACTS guidelines on myocardial revascularization.

, A Cequier,

Rev Esp Cardiol (Engl Ed) (Revista espanola de cardiologia (English ed.))
[2015, 68(2):92-97]

Cited: 1 time

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Spontaneous left atrial hematoma causing cardiac failure.

Guillermo Reyes, Luis Garcia, Jesus Borreguero,

Asian Cardiovasc Thorac Ann (Asian cardiovascular & thoracic annals)
[2013, 21(6):750]

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