Browsing by Subject "Endoscopy"

Now showing 1 - 6 of 6
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    An anatomical study using computed tomography, magnetic resonance imaging, and rhinoscopy of the nasal cavity of domestic cat (Felis silvestris catus L.) and big cats: lion (Panthera leo leo L.), leopard (Panthera pardus kotiya L.), and cheetah (Acinonyx jubatus jubatus S.)
    (MDPI, 2024-04-13) Díaz Martínez, Elena; Arencibia Espinosa, Alberto; Kilroy, David; Soler Laguía, Marta; Kilroy, David; Martínez Gomariz, Francisco; Casas García, Diego Luis; Sánchez Collado, Cayetano; Gil Cano, Francisco; Raduán Jaber, José; Ramírez Zarzosa, Gregorio José; Anatomía Humana y Psicobiología; Facultad de Veterinaria
    The objective of this work was to study the normal anatomy of the nasal cavity of the three species of big cats (leopard, lion, and cheetah) compared to the domestic cat through the use of computed tomography, magnetic resonance imaging, and rhinoscopy. Computed tomography allowed us to clearly visualize the entire bony and cartilaginous framework that supports the nasal cavity. Magnetic resonance imaging permitted better visualization of the soft tissues of this cavity. On the other hand, rhinoscopy enabled the direct visualization of the mucosa of the vestibule and nasal cavity, which is very useful in the diagnosis of masses or foreign bodies. Furthermore, with this technique, it has been possible to observe several small orifices from the nasolacrimal duct, the pharyngeal auditory tube, and the lateral nasal gland. Computed tomography, magnetic resonance imaging, and rhinoscopy are useful tools in analysis of the anatomical characteristics of the nasal cavity in these species.
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    Comparative anatomy of the nasal cavity in the common dolphin Delphinus delphis L., striped dolphin Stenella coeruleoalba M. and pilot whale Globicephala melas T.: a developmental study
    (MDPI, 2021-02-08) Ríos y Loshuertos, Alvaro García de los; Soler Laguía, Marta; Arencibia Espinosa, Alberto; López Fernández, Alfredo; Covelo Figueiredo, Pablo; Martínez Gomariz, Francisco; Sánchez Collado, Cayetano; García Carrillo, Nuria; Ramírez Zarzosa, Gregorio José; Anatomía y Anatomía Patológica Comparada; Facultad de Veterinaria
    Our goal was to analyze the main anatomical structures of the dolphin external nose and nasal cavity from fetal developmental stages to adult. Endoscopy was used to study the common development of the external nose and the melon, and nasal mucosa. Magnetic resonance imaging (MRI) and anatomical sections were correlated with anatomical sections. Computed tomography (CT) was used to generate 3D reconstructions of the nasal bones and nasal cavities to study its development. Dissections, histological and pathological studies were carried out on the nasal mucosa to understand its function. These results were compared with the horse. Endoscopy showed an external nose with two lips and the upper lip is divided by a groove due to the nasal septum and an obstruction of right nasal cavity was diagnosed in a newborn. Two diverticula (air sacs) were found in the nasal vestibule and an incisive recess (premaxillary sac) in the nasal cavity. These findings were corroborated by 3D reconstructions of the nasal cavities, MRI, anatomical sections and dissections. The presphenoid and ethmoid bones were fused at early stages of fetal development. The ethmoid is the last bone to ossify in the nasal cavity.
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    Endoscopic Endocautery Polypectomy for the Treatment of Duodenal and Gastric Polyps in a Cat
    (Elsevier, 2021-08) Ayala de la Peña, Ignacio; Cabot, Antonio; García-Martínez, Juan Diego; Escobar, María Teresa; Alberca, Fernando; Medicina y Cirugía Animal
    Endoscopic polypectomy is commonly performed in human medicine, with large-scale studies reported. However, few reports have described its use in veterinary medicine and, specifically, the procedure in the case of duodenal polyps in cats has not been reported. A 7 kg 14-year-old cat presented with recurrent vomiting for several months. Gastroduodenoscopy revealed a pedunculated polyp at the pyloric antrum and another in the duodenum, with its head protruding into the pylorus. Endoscopic polypectomy was performed using an electrosurgical snare with no recurrence of clinical signs after six months. Duodenal polypectomy in cats may be difficult because of space limitation but it can be safe, minimally invasive, and successful, thus avoiding more invasive surgical techniques. Endoscopic polypectomy may be a viable alternative to surgery in cats with gastric and duodenal polyps.
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    Endoscopic endocautery polypectomy for the treatment of duodenal and gastric polyps in a cat
    (Elsevier, 2021-08) Ayala, Ignacio; Cabot, Antonio; García Martínez, Juan Diego; Escobar, María Teresa; Alberca, Fernando; Medicina y Cirugía Animal
    Endoscopic polypectomy is commonly performed in human medicine, with large-scale studies reported.However, few reports have described its use in veterinary medicine and, specifically, the procedure in thecase of duodenal polyps in cats has not been reported. A 7 kg 14-year-old cat presented with recurrent vom-iting for several months. Gastroduodenoscopy revealed a pedunculated polyp at the pyloric antrum andanother in the duodenum, with its head protruding into the pylorus. Endoscopic polypectomy was per-formed using an electrosurgical snare with no recurrence of clinical signs after six months. Duodenal poly-pectomy in cats may be difficult because of space limitation but it can be safe, minimally invasive, andsuccessful, thus avoiding more invasive surgical techniques. Endoscopic polypectomy may be a viable alter-native to surgery in cats with gastric and duodenal polyps.
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    Endoscopic study of the oral and pharyngeal cavities in the Common dolphin, Striped dolphin, Risso’s dolphin, Harbour porpoise and Pilot whale: reinforced with other diagnostic and anatomic techniques
    (MDPI, 2021-05-22) García de los Ríos y Loshuertos, Álvaro; Soler Laguía, Marta; Arencibia Espinosa, Alberto; Martínez Gomariz, Francisco; Sánchez Collado, Cayetano; López Fernández, Alfredo; Gil Cano, Francisco; Seva Alcaraz, Juan; Ramírez Zarzosa, Gregorio José; Anatomía y Anatomía Patológica Comparadas
    In this work, the fetal and newborn anatomical structures of the dolphin oropharyngeal cavities were studied. The main technique used was endoscopy, as these cavities are narrow tubular spaces and the oral cavity is difficult to photograph without moving the specimen. The endoscope was used to study the mucosal features of the oral and pharyngeal cavities. Two pharyngeal diverticula of the auditory tubes were discovered on either side of the choanae and larynx. These spaces begin close to the musculotubaric channel of the middle ear, are linked to the pterygopalatine recesses (pterygoid sinus) and they extend to the maxillopalatine fossa. Magnetic Resonance Imaging (MRI), osteological analysis, sectional anatomy, dissections, and histology were also used to better understand the function of the pharyngeal diverticula of the auditory tubes. These data were then compared with the horse’s pharyngeal diverticula of the auditory tubes. The histology revealed that a vascular plexus inside these diverticula could help to expel the air from this space to the nasopharynx. In the oral cavity, teeth remain inside the alveolus and covered by gums. The marginal papillae of the tongue differ in extension depending on the fetal specimen studied. The histology reveals that the incisive papilla is vestigial and contain abundant innervation. No ducts were observed inside lateral sublingual folds in the oral cavity proper and caruncles were not seen in the prefrenular space.
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    Estudio retrospectivo sobre la incidencia de la hemiplejía laríngea en caballos sometidos a endoscopia durante el curso 2014/2015. Impacto económico
    (Murcia: Servicio de Publicaciones de la Universidad de Murcia, 2019) Carrilero, V.; Aguirre, C.; Rodríguez Vizcaino, María Jesús; Rodríguez-Ariza, J.M.ª; Caballero, A.; Ruiz, I.; Leal, P.; Ayala de la Peña, Ignacio
    En el presente estudio se han revisado las historias clínicas de 10 caballos ingresados en el Servicio de Medicina y Cirugía Equina del Hospital Clínico Veterinario de la Universidad de Murcia en los que, ya sea como motivo de consulta principal, o como acompañamiento a cualquier otra patología, han requerido de una endoscopia de las vías aéreas altas durante el curso académico 2014/2015, por presentar todos ellos síntomas respiratorios, siendo estos pacientes el 4,01% del total de casos del Servicio. Se ha observado que 9/10 (90%) de los animales revisados fueron machos, que 6/10 (60%) superaba los 10 años de edad y que 5/10 (50%) pacientes pertenecían a la raza Pura Raza Español (P.R.E), mientras que el 5/10 (50%) restante pertenecían a razas de gran alzada, como Frisón, Koninklijk Warmbloed Paard Nederland (KWPN) y Hols-teiner. Se ha determinado que la hemiplejia laríngea izquierda fue la patología más prevalente en este grupo de animales presentándose en 6/10 (60%) casos, de los cuales 3/6 (50%) resultó pertenecer a la raza P.R.E. De estos animales positivos a hemiplejia laríngea, 6/6 (100%) fueron machos, y 4/6 (67%) superaba el rango de afectación esperado, entre 2 y 5 años, para esta patología. Dos de los seis afectados (33%) se sometieron a cirugía, resultando la misma muy satisfactoria. En cuanto al impacto económico, las hemiplejias laríngeas supusieron el 83,54% de lo recaudado por las afecciones de vías aéreas superiores que requirieron endosco-pia, las cuales tuvieron un peso económico del 6,5% en el montante total recaudado por el servicio Medicina y Cirugía Equina durante este periodo. Estos datos reafirman que la técnica diagnóstica endoscópica aumenta la calidad de los diagnósticos efectuados y de forma directa e indirecta incrementa también los ingresos veterinarios.