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1.
Acta sci. vet. (Impr.) ; 51: Pub. 1904, 2023. ilus, tab
Artigo em Inglês | VETINDEX | ID: biblio-1416676

Resumo

Background: Hydrodissection is a minimally invasive procedure that consists of injecting fluid into an anatomical space to facilitate dissection during surgery. Although this procedure is employed in several areas of veterinary medicine, including ophthalmology, there are no reports of the use of this maneuver in conjunctival procedures in dogs. The use of this technique can facilitate the construction of conjunctival pedicle flaps, thereby improving the results. The purpose of this work was to evaluate the use of hydrodissection in the construction of conjunctival pedicle flaps in dogs. Materials, Methods & Results: The sample consisted of 20 eyes from 10 healthy dogs that had been subjected to elective surgical procedures of ovariohysterectomy and orchiectomy. The dogs were divided into 2 groups; the 1st group of 10 eyes underwent hydrodissection and the 2nd group of 10 eyes did not. All the patients underwent a complete ophthalmic examination and assessment of their systemic conditions. The patients were then anesthetized and the procedures were performed under a surgical microscope. In the group subjected to hydrodissection, the conjunctival flap was prepared by means of a previous subconjunctival injection of 0.7 mL of 0.9% sodium chloride, followed by preparation of the flap. In the group without hydrodissection, the flap was prepared by means of conventional divulsion using iris scissors. After producing the conjunctival flaps, a conjunctival fragment was collected from both groups for histological analysis and evaluation of the presence of the Tenon capsule. The operating time, degree of hemorrhage and ease of handling the conjunctiva in the intraoperative period were evaluated. Postoperative evaluations were performed at 1, 7 and 14 days after surgery and included: blepharospasm, conjunctival hyperemia and edema, which were classified as absent, mild, moderate or severe; tear production was evaluated using the Schirmer test, and the appearance of the conjunctival scar was assessed based on photographs taken in the postoperative period, and by a visual analogue scale, with healing classified as fair, good or excellent. The 2 groups showed no statistical difference in terms of operating time, bleeding, ease of handling and conjunctival divulsion. A volume of 0.48 ± 0.12 mL of 0.9% sodium chloride was administered to the conjunctiva. Postoperative assessments of hyperemia, blepharospasm, conjunctival edema, and tear production also did not differ statistically. Conjunctival scarring was considered optimal until the 14th postoperative day, with no statistically significant difference between the 2 groups. These results demonstrate that both maneuvers are effective in creating conjunctival flaps. The Tenon capsule could not be identified in histological stains. Discussion: The literature offers numerous descriptions of the use of hydrodissection in surgical procedures in humans in order to facilitate dissection and reduce surgical duration and handling, thereby improving the clinical recovery of patients. Conversely, this technique has not been described frequently in veterinary medicine, notably with respect to conjunctival procedures. In this study, we demonstrated that conjunctival hydrodissection was perfectly feasible, contributing to the divulsion and preparation of conjunctival flaps, thus proving to be a viable option for this type of procedure. The absence of the Tenon capsule in the evaluated samples demonstrates that, in both groups, the techniques were effective in separating them from the conjunctiva. It was therefore concluded that the hydrodissection technique is a feasible maneuver in the construction of conjunctival flaps, providing a new option for surgeons, especially for novice ophthalmologists.


Assuntos
Animais , Cães , Retalhos Cirúrgicos/veterinária , Úlcera da Córnea/cirurgia , Dissecação/métodos , Dissecação/veterinária , Procedimentos Cirúrgicos Minimamente Invasivos/métodos
2.
Acta sci. vet. (Impr.) ; 47(suppl.1): Pub.438-2019. ilus
Artigo em Português | VETINDEX | ID: biblio-1458202

Resumo

Background: Pectus are congenital sternal deformities considered rare in small animals, and they are divided into twotypes. Pectus excavatum causes a concave aspect in the ventral portion of the animal’s thorax, which is known as “funnelchest,” while pectus carinatum produces a convex appearance and is therefore called “pigeon chest.” The etiology of theseanomalies has not yet been fully elucidated, but it is assumed that there is genetic involvement. The diagnosis is basedon clinical examination and is confirmed by thoracic radiography. This report describes a case of pectus carinatum in aone-month-old domestic cat.Case: An unspayed female domestic cat, about one month old, weighing 0.1 kg, was admitted to the Veterinary Hospital ofthe Federal University of Piauí (UFPI). When her history was taken, her owner reported that he had rescued the animal theprevious day and noticed that showed difficulty breathing, so naturally worming and vaccination were not reported. Uponphysical examination, the patient showed an abdominal breathing pattern, severe dyspnea, pale mucosa, nasal discharge,apathy, poor nutritional status (body score 1), signs of apparent dehydration and a temperature of 38.5ºC. Palpation revealedincreased volume in the thoracic region. X-rays were ordered due to suspicion of diaphragmatic injury. The chest X-rayreport indicated ventral segment displacement of the 4th to the 8th sternebra, with accommodation of the cardiac silhouettein the right lateral, left lateral and dorsoventral projections, suggesting pectus carinatum. Pulmonary radiodensity wasalso augmented, with greater intensity in the right middle lobe, an alveolar pattern, radiographic signs suggestive of aninfectious process (pneumonia), and pulmonary hyperinflation. A qualitative analysis revealed cardiac silhouette whosedimensions showed no radiographic evidence of alterations at the moment of the examination. The diaphragmatic domewas intact...


Assuntos
Animais , Gatos , Pectus Carinatum/diagnóstico por imagem , Pectus Carinatum/patologia , Pectus Carinatum/veterinária , Anormalidades Congênitas/veterinária
3.
Acta sci. vet. (Online) ; 47(suppl.1): Pub. 438, 13 nov. 2019. ilus
Artigo em Português | VETINDEX | ID: vti-25795

Resumo

Background: Pectus are congenital sternal deformities considered rare in small animals, and they are divided into twotypes. Pectus excavatum causes a concave aspect in the ventral portion of the animals thorax, which is known as “funnelchest,” while pectus carinatum produces a convex appearance and is therefore called “pigeon chest.” The etiology of theseanomalies has not yet been fully elucidated, but it is assumed that there is genetic involvement. The diagnosis is basedon clinical examination and is confirmed by thoracic radiography. This report describes a case of pectus carinatum in aone-month-old domestic cat.Case: An unspayed female domestic cat, about one month old, weighing 0.1 kg, was admitted to the Veterinary Hospital ofthe Federal University of Piauí (UFPI). When her history was taken, her owner reported that he had rescued the animal theprevious day and noticed that showed difficulty breathing, so naturally worming and vaccination were not reported. Uponphysical examination, the patient showed an abdominal breathing pattern, severe dyspnea, pale mucosa, nasal discharge,apathy, poor nutritional status (body score 1), signs of apparent dehydration and a temperature of 38.5ºC. Palpation revealedincreased volume in the thoracic region. X-rays were ordered due to suspicion of diaphragmatic injury. The chest X-rayreport indicated ventral segment displacement of the 4th to the 8th sternebra, with accommodation of the cardiac silhouettein the right lateral, left lateral and dorsoventral projections, suggesting pectus carinatum. Pulmonary radiodensity wasalso augmented, with greater intensity in the right middle lobe, an alveolar pattern, radiographic signs suggestive of aninfectious process (pneumonia), and pulmonary hyperinflation. A qualitative analysis revealed cardiac silhouette whosedimensions showed no radiographic evidence of alterations at the moment of the examination. The diaphragmatic domewas intact...(AU)


Assuntos
Animais , Gatos , Pectus Carinatum/diagnóstico por imagem , Pectus Carinatum/patologia , Pectus Carinatum/veterinária , Anormalidades Congênitas/veterinária
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