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| Velazquez-Gauna,Sergio E; Soto-Domínguez,Adolfo; Quiroga-Garza,Alejandro; Reyes-Hernández,Cynthia G; Chavez-Reyes,Arturo; Morales-Avalos,Rodolfo; Montes-de-Oca-Luna,Roberto; Guzmán-López,Santos; Elizondo-Omaña,Rodrigo E. |
| When a vein segment is grafted into arterial circulation, biomechanical forces stimulate modification of its structure. This morphological adaptive response is progressive during a medium or long term and occludes the vessel lumen, leading to a graft failure. The objective of this study was to characterize the early morphological response of the vascular wall in a terminal-terminal vascular vein graft model in Wistar rats. A segment of the femoral vein was placed in the femoral circulation. An end to end microsurgical graft anastomosis technique was implemented and standardized in twenty rats. The samples were processed with histological technique to analyze the overall structure with hematoxylin and eosin, the composition of the vessel wall with Masson... |
| Tipo: Journal article |
Palavras-chave: Hyperplasia; Morphology; Microsurgical model; Vascular adaptive changes; Venous graft. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200016 |
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| Méndez-Aguirre,Omar; Morales-Avalos,Rodolfo; Compeán-Martínez,Gustavo A; Espinosa-Uribe,Abraham G; Vílchez-Cavazos,Félix; Theriot-Giron,María del Carmen; Quiroga-Garza,Alejandro; de la Garza-Castro,Oscar; Guzmán Avilán,Katia; Guzmán-López,Santos; Elizondo-Omaña,Rodrigo E. |
| To describe the safety areas for placement of 5 anterolateral portals (anterior, anterior lateral, posterior lateral, proximal anterior medial and distal anterior medial portals) and 3 recently described medial portals (anterior medial, posterior medial and distal posterior medial portals) to provide topographical description of the safety of each. A descriptive, observational and cross-sectional study in which femoral triangle dissection was performed in 12 hips. 5 lateral portals and the 3 medial portals were placed. Clinically relevant neurovascular structures associated with each portal, were identified measured and documented. The lateral portal with the highest risk of injury to a nearby neurovascular structure was the anterior portal, the most... |
| Tipo: Journal article |
Palavras-chave: Anatomy; Arthroscopy; Hip; Portal. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000200051 |
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| Jiménez-Sosa,Michelle Stephanie; Cantu-Gonzalez,Juan Ramón; Morales-Avalos,Rodolfo; de la Garza-Castro,Oscar; Quiroga-Garza,Alejandro; Pinales-Razo,Ricardo; Elizondo-Riojas,Guillermo; Elizondo-Omaña,Rodrigo E; Guzmán- López,Santos. |
| One of the most common causes of stroke is rupture of aneurysms whose approach requires knowledge of anatomical variants. The aim of this study was to determine the prevalence of anatomical variants of the anterior cerebral artery (ACA) and the anterior communicating artery (AComA) by 3D computed tomography angiography (3D CTA) in Mexican individuals. A retrospective, observational, cross-sectional descriptive study of 283 patients, independent of sex or age, in which morphometric measurements of cerebral vessels were evaluated using contrasted 3D CTA from a period of two years was performed. We found at least one "atypical" variant in a third of the study population (33.93 %). The most common "atypical" variant was the absence of the AComA (14.1 %). A... |
| Tipo: Journal article |
Palavras-chave: Anterior cerebral artery; Anatomical variant; Anterior communicating artery; Cerebral arterial circle; Subarachnoid hemorrhage; Cerebral endovascular surgery. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300049 |
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| Martínez-González,Brenda; Theriot-Girón,María del Carmen; López-Serna,Norberto; Morales-Avalos,Rodolfo; Quiroga-Garza,Alejandro; Reyes-Hernández,Cynthia G; Villanueva-Olivo,Arnulfo; Leyva-Villegas,Jorge I; Soto-Domínguez,Adolfo; de la Fuente-Villarreal,David; Elizondo-Omaña,Rodrigo E; Guzmán-López,Santos. |
| Revascularization surgery should ensure morphological similarity between the coronary artery and the graft. This is an important factor for its duration and permeability. The aim of this study was to analyze the morphological characteristics and morphometrics of the coronary artery segments with greater occlusion. This was an observational, cross-sectional descriptive study that consisted of two phases. A macroscopic phase in which 11 cadaveric hearts were extracted and coronary dominance and length of the anterior interventricular artery (AIA), the right coronary artery (RCA) and the circumflex artery (CXA) were determined. In the microscopic phase a total of 77 segments of these arteries were obtained and the luminal diameter, wall thickness, and amount... |
| Tipo: Journal article |
Palavras-chave: Coronary artery; Morphology; Morphometry; Myocardial revascularization surgery. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000400002 |
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| Morales-Avalos,Rodolfo; Leyva-Villegas,Jorge I; Sánchez-Mejorada,Gabriela; Méndez-Aguirre,Omar; Galindo-Aguilar,Oscar Ulises; Quiroga-Garza,Alejandro; Villarreal-Silva,Eliud E; Vílchez-Cavazos,Félix; Galván,José R.B; Elizondo-Omaña,Rodrigo E; Guzmán-López,Santos. |
| Femoroacetabular impingement syndrome (FAI) is a clinical entity that has been recognized in recent years as a frequent cause of pain and the early development of hip arthrosis. Subspine hip impingement is characterized by the prominent or abnormal morphology of the anteroinferior iliac spine (AIIS), which contributes to the development of a clinical picture that is similar to FAI. The aims of this study were to propose a new morphological classification of the AIIS, to determine the prevalence of the different AIIS morphologies based on this classification and to correlate the presence of said morphologies with different gender and age groups. The sample consisted of 458 hemipelvises from individuals of known age and sex (264 men and 194 women). Each... |
| Tipo: Journal article |
Palavras-chave: Prevalence; Anterior inferior iliac spine; Subspine impingement; Classification; Morphology; Hip. |
| Ano: 2015 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022015000200034 |
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| Vázquez-Barragán,Miguel Ángel; Garza-Báez,Azalea; Morales-Avalos,Rodolfo; Martínez-González,Brenda; Jacobo-Baca,Guillermo; Pinales-Razo,Ricardo; Quiroga-Garza,Alejandro; de la Fuente-Villarreal,David; Elizondo-Riojas,Guillermo; Elizondo-Omaña,Rodrigo E; Guzmán-López,Santos. |
| The Mexican government passed a new reform of article 11 of the General Law in 2014 regarding Women's Access to a Life Free of Violence, which states that a cesarean section may not be performed if a vaginal birth is viable. Cesarean sections are excessively indicated in Northen Mexico, using the diagnosis of cephalopelvic disproportion due to a narrow pelvis. Currently, there is no standardized morphometry of the female pelvis in a Mexican population to establish adequate diagnostic parameter. Our study measures the pelvic diameters of the birth canal using abdominopelvic computed tomography (CT). Two hundred and ninety CT from Mexican women between the ages of 18 and 50 were collected and 3D reformatted in order to morphologically measure the pelvic... |
| Tipo: Journal article |
Palavras-chave: Pelvimetry; Cesarean; Cephalopelvic disproportion; Reformatted CT; Morphometry; Mexico. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100043 |
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