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Journal article
Esophageal pH-monitoring in nonbrachycephalic dogs; a reference
Veterinary surgery, Vol.53(1), pp.43-53
2023
Abstract
Objective
To establish parameters that describe acidic gastroesophageal reflux (GER) events in nonbrachycephalic, hospitalized dogs without gastrointestinal disease following short total intravenous anesthesia, to establish upper reference limits for parameters that describe GER.
Study design
Clinical prospective study.
Animals
Healthy, client-owned dogs presenting for elective orthopedic surgery.
Methods
Dogs were sedated with IM methadone (0.2 mg/kg) and medetomidine (5 ug/kg), followed by alfaxalone total intravenous anesthesia. The Digitrapper esophageal dual pH monitoring probe was placed transnasally into the esophagus. Dogs were unsedated during the subsequent recording period. A GER event was defined as esophageal pH less than 4.0. Parameters that described GER were: (1) number of GER events per hour, and (2) cumulative esophageal acid exposure (percentage of recording duration) at each sensor. Upper reference limits were calculated for each parameter.
Results
Thirty-five dogs were included (median age 7 years, range 1–12). The median recording duration was 21.1 h (range 13.6–29.3). Productive regurgitation was not noted in any dog. The median number of distal and proximal GER events per hour was 0.3 (range 0–4.3) and 0 (range 0–1), respectively. The median cumulative distal and proximal esophageal acid exposure was 0.2% (range 0.3–9%) and 0% (range 0%–1%), respectively.
Conclusion
Upper reference limits for distal and proximal GER per hour was 2.4 and 0.4, respectively, and, for cumulative distal and proximal esophageal acid exposure, 2.3% and 0%, respectively.
Clinical significance
Dogs undergoing esophageal pH monitoring in a similar hospital setting with parameters above these upper reference limits have excessive GER.
Details
- Title
- Esophageal pH-monitoring in nonbrachycephalic dogs; a reference
- Authors/Creators
- Tesheena R. NashGiselle Hosgood - Murdoch University, School of Veterinary MedicineCarla Appelgrein
- Publication Details
- Veterinary surgery, Vol.53(1), pp.43-53
- Publisher
- Wiley Periodicals LLC on behalf of American College of Veterinary Surgeons.
- Identifiers
- 991005605568607891
- Copyright
- © 2023 The Authors.
- Murdoch Affiliation
- The Animal Hospital At Murdoch University; School of Veterinary Medicine
- Resource Type
- Journal article
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