Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/22506
Tipo: Artigo
Título: Ambulatory esophageal pHmetry in healthy dogs with and without the influence of general anesthesia
Autor(es): Favarato, Evandro Silva
Souza, Maria Verônica de
Costa, Paulo Renato dos Santos
Pompermayer, Luiz Gonzaga
Favarato, Lukiya Silva Campos
Ribeiro Júnior, José Ivo
Abstract: This research aimed to determine the value of esophageal pH in awake and anesthetized dogs, to evaluate the esophageal pH value in awake dogs, in different body positions, as well as to study the occurrence of gastroesophageal reflux episodes in these positions. Thus, 40 healthy male and female adult dogs with mean body weight of 15.5 ± 4.6 kg were used. Esophageal pHmetry was conducted by inserting a catheter through the oropharynx in 30 dogs (stage 1) anesthetized with acepromazine, propofol and isoflurane, submitted to elective ovariosalpingohysterectomy. In addition, 8-h esophageal pHmetry was carried out transnasally in 10 awake dogs (stage 2), allowed to move and change body positions (lateral and sternal decubitus, and standing position), which were recorded. The mean esophageal pH value was lower (p < 0.01) in the anesthetized dogs (7.3 ± 0.82) than in the awake dogs (8.2 ± 0.3). Only four anesthetized dogs (13.33%) suffered reflux episodes. Reflux was not observed in the awake dogs and no esophageal pH differences were found between the body positions studied. Compared to the alert state, general anesthesia in dogs submitted to the previously mentioned anesthesia protocol causes esophageal pH reduction and predisposes to the occurrence of gastroesophageal reflux episodes. Transnasal pHmetry of 8 h in healthy awake dogs reveals that the esophageal pH value is alkaline and does not vary according to body position. In these animals, decubitus position is not a determining factor for reflux episodes to occur.
Palavras-chave: Gastroesophageal reflux
Esophageal pH
Nasal cavity
Posture
Esophagitis
Editor: Veterinary Research Communications
Tipo de Acesso: Springer Science+Business Media B.V. 2011
URI: http://dx.doi.org/10.1007/s11259-011-9471-0
http://www.locus.ufv.br/handle/123456789/22506
Data do documento: 2-Abr-2011
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