Journal of Veterinary Science

The Korean Society of Veterinary Science (대한수의학회)
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Computed tomographic features of gastric and esophageal content in dogs undergoing CT myelography and factors influencing the presence of esophageal fluid

  • Received : 2020.06.05
  • Accepted : 2020.09.09
  • Published : 2020.11.30
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Abstract

Background: Gastroesophageal reflux (GER) has been reported to be a common finding in dogs under general anesthesia. Objectives: The aim of this retrospective study was to assess the esophageal and gastric contents in a population of dogs undergoing computed tomographic myelography (myeloCT) examination and to evaluate the factors influencing the presence of esophageal fluid (gastric content, duration of anesthesia, body position, and intrinsic factors). Methods: Esophageal and gastric contents of 83 non-brachycephalic dogs were retrospectively assessed based on plain and myelo-CT scans. Age, weight, breed, sex, and the time between the 2 computed tomography [CT] scans were included. Results: Esophageal fluid was present in 19% (16/83) of the animals, and 14% (12/83) and 46% (37/83), respectively, had fluid or food material in their stomachs. The frequency of observing esophageal fluid on myelo-CT scans was significantly increased compared with plain CT scans (p = 0.006). The presence of gastric fluid was significantly associated with an increased frequency of observing esophageal fluid compared to other gastric contents (p = 0.049; odds ratio, 3.1). The presence of esophageal fluid was not correlated with alimentary gastric contents (p = 0.17). Increased body weight and duration of anesthesia were significantly associated with an increased frequency of observing esophageal fluid (p = 0.022, p = 0.021). Conclusions: Unlike alimentary gastric contents, fluid gastric contents were correlated with the presence of esophageal fluid upon myelo-CT. The observation of fluid in the esophagus may be consistent with GER. This study provides data additional to pH monitoring studies of GER and may support previous studies recommending shorter pre-anesthetic fasting periods in dogs.

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References

  1. Adams JG, Peboni Figueiredo J, Graves TK. Physiology, pathophysiology and anesthetic management of patients with gastrointestinal and endocrine disease. In: Grimm KA, Lamont LA, Tranquili WJ, Greene AG, Robertson SA, editors. Veterinary Anesthesia and Analgesia: the Fifth Edition of Lumb and Jones. 5th ed. Ames: Wiley Blackwell; 2015, 639-677.
  2. Rodriguez-Alarcon CA, Beristain-Ruiz DM, Rivera-Barreno R, Diaz G, Uson-Casaus JM, Garcia-Herrera R, et al. Gastroesophageal reflux in anesthetized dogs: a review. Rev Colomb Cienc Pecu. 2015;28(2):144-155.
  3. Wilson DV, Walshaw R. Postanesthetic esophageal dysfunction in 13 dogs. J Am Anim Hosp Assoc. 2004;40(6):455-460. https://doi.org/10.5326/0400455
  4. Savvas I, Rallis T, Raptopoulos D. The effect of pre-anaesthetic fasting time and type of food on gastric content volume and acidity in dogs. Vet Anaesth Analg. 2009;36(6):539-546. https://doi.org/10.1111/j.1467-2995.2009.00495.x
  5. Galatos AD, Raptopoulos D. Gastro-oesophageal reflux during anaesthesia in the dog: the effect of age, positioning and type of surgical procedure. Vet Rec. 1995;137(20):513-516. https://doi.org/10.1136/vr.137.20.513
  6. Galatos AD, Raptopoulos D. Gastro-oesophageal reflux during anaesthesia in the dog: the effect of preoperative fasting and premedication. Vet Rec. 1995;137(19):479-483. https://doi.org/10.1136/vr.137.19.479
  7. Torrente C, Vigueras I, Manzanilla EG, Villaverde C, Fresno L, Carvajal B, et al. Prevalence of and risk factors for intraoperative gastroesophageal reflux and postanesthetic vomiting and diarrhea in dogs undergoing general anesthesia. J Vet Emerg Crit Care (San Antonio). 2017;27(4):397-408. https://doi.org/10.1111/vec.12613
  8. Wilson DV, Boruta DT, Evans AT. Influence of halothane, isoflurane, and sevoflurane on gastroesophageal reflux during anesthesia in dogs. Am J Vet Res. 2006;67(11):1821-1825. https://doi.org/10.2460/ajvr.67.11.1821
  9. Viskjer S, Sjostrom L. Effect of the duration of food withholding prior to anesthesia on gastroesophageal reflux and regurgitation in healthy dogs undergoing elective orthopedic surgery. Am J Vet Res. 2017;78(2):144-150. https://doi.org/10.2460/ajvr.78.2.144
  10. Petite A, Kriberger K. Mediastinum. In: Schwartz T, Saunders J, editors. Veterinary Computed Tomography. Ames: Wiley-Blackwell; 2011, 249-260.
  11. Zhang S, Joseph AA, Gross L, Ghadimi M, Frahm J, Beham AW. Diagnosis of gastroesophageal reflux disease using real-time magnetic resonance imaging. Sci Rep. 2015;5(1):12112. https://doi.org/10.1038/srep12112
  12. Moosavi A, Raji H, Teimoori M, Ghourchian S. Air column in esophagus and symptoms of gastroesophageal reflux disease. BMC Med Imaging. 2012;12(1):2. https://doi.org/10.1186/1471-2342-12-2
  13. Little AF, Cox MR, Martin CJ, Dent J, Franzi SJ, Lavelle R. Influence of posture on transient lower oesophageal sphincter relaxation and gastro-oesophageal reflux in the dog. J Gastroenterol Hepatol. 1989;4(1):49-54. https://doi.org/10.1111/j.1440-1746.1989.tb00806.x
  14. Khoury RM, Camacho-Lobato L, Katz PO, Mohiuddin MA, Castell DO. Influence of spontaneous sleep positions on nighttime recumbent reflux in patients with gastroesophageal reflux disease. Am J Gastroenterol. 1999;94(8):2069-2073. https://doi.org/10.1016/S0002-9270(99)00335-4
  15. Savvas I, Raptopoulos D, Rallis T. A "light meal" three hours preoperatively decreases the incidence of gastro-esophageal reflux in dogs. J Am Anim Hosp Assoc. 2016;52(6):357-363. https://doi.org/10.5326/JAAHA-MS-6399
  16. Stieger-Vanegas S, Franck P. Stomach. In: Thrall DE, editor. Textbook of Veterinary Diagnostic Radiology. 7th ed. St. Louis: Elsevier; 2018, 894-925.
  17. Pandolfino JE, Howden CW, Kahrilas PJ. Motility-modifying agents and management of disorders of gastrointestinal motility. Gastroenterology. 2000;118(2 Suppl 1):S32-S47. https://doi.org/10.1016/s0016-5085(00)70005-9
  18. Harris A, Martin BJ. Increased abdominal pain during final examinations. Dig Dis Sci. 1994;39(1):104-108. https://doi.org/10.1007/BF02090068
  19. Stakeberg J, Lehmann A. Influence of different intragastric stimuli on triggering of transient lower oesophageal sphincter relaxation in the dog. Neurogastroenterol Motil. 1999;11(2):125-132. https://doi.org/10.1046/j.1365-2982.1999.00141.x
  20. Lamata C, Loughton V, Jones M, Alibhai H, Armitage-Chan E, Walsh K, et al. The risk of passive regurgitation during general anaesthesia in a population of referred dogs in the UK. Vet Anaesth Analg. 2012;39(3):266-274. https://doi.org/10.1111/j.1467-2995.2011.00704.x
  21. Hampel H, Abraham NS, El-Serag HB. Meta-analysis: obesity and the risk for gastroesophageal reflux disease and its complications. Ann Intern Med. 2005;143(3):199-211. https://doi.org/10.7326/0003-4819-143-3-200508020-00006
  22. Wilson DV, Tom Evans A, Mauer WA. Pre-anesthetic meperidine: associated vomiting and gastroesophageal reflux during the subsequent anesthetic in dogs. Vet Anaesth Analg. 2007;34(1):15-22. https://doi.org/10.1111/j.1467-2995.2006.00295.x
  23. Shaver SL, Barbur LA, Jimenez DA, Brainard BM, Cornell KK, Radlinsky MG, et al. Evaluation of gastroesophageal reflux in anesthetized dogs with brachycephalic syndrome. J Am Anim Hosp Assoc. 2017;53(1):24-31. https://doi.org/10.5326/JAAHA-MS-6281
  24. Poncet CM, Dupre GP, Freiche VG, Estrada MM, Poubanne YA, Bouvy BM. Prevalence of gastrointestinal tract lesions in 73 brachycephalic dogs with upper respiratory syndrome. J Small Anim Pract. 2005;46(6):273-279. https://doi.org/10.1111/j.1748-5827.2005.tb00320.x