Estudo pHmétrico esofágico de oito horas em pacientes pediátricos com suspeita de refluxo gastroesofágico

Carneluti, Ricardo; Martins, José Luiz; Cury, Edson Khodor

doi:10.1590/s0102-86502005000200003

Cited by 1 publication

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References 7 publications

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“…There is no doubt that the longer the evaluation time, the greater the reliability of the results. However, some studies have shown that 8-h pHmetry produces results similar to that of 24-h pHmetry, with this shorter observation period being even recommended for patients who do not tolerate the exam well, such as children (Silva et al 1996;Carneluti et al 2005). Radiographic evaluation and esophagoscopy conducted in awake and anesthetized dogs, respectively, were fundamental to confirm the correct position of the esophageal pHmetry catheter, and allowed to exclude the positioning error as a variable that could influence the results.…”

Section: Discussionmentioning

confidence: 99%

Ambulatory esophageal pHmetry in healthy dogs with and without the influence of general anesthesia

et al. 2011

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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.

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Section: Discussionmentioning

confidence: 99%