Factors affecting respiratory system compliance in anaesthetised mechanically ventilated healthy dogs: a retrospective study

Asorey, Iago; Pellegrini, L; Canfrán, Susana; Ortiz-Díez, Gustavo; Aguado, Delia

doi:10.1111/jsap.13194

Cited by 9 publications

(5 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One potential explanation may be related to the body conformation of sighthounds. According to previous studies, narrow‐chested dogs and dogs with a lower body condition score had a higher increase in lung volume during inspiration 11,12 . Sighthounds, which have narrower chests and lower body fat percentage than other breeds, 13 may, therefore, have a larger stretch of the alveoli than in other breeds.…”

Section: Discussionmentioning

confidence: 92%

“…According to previous studies, narrow-chested dogs and dogs with a lower body condition score had a higher increase in lung volume during inspiration. 11,12 Sighthounds, which have narrower chests and lower body fat percentage than other breeds, 13 may, therefore, have a larger stretch of the alveoli than in other breeds. This larger alveolar stretch may predispose to the Macklin effect, leading to the presence of PIE and/or pneumomediastinum.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Pulmonary interstitial emphysema and spontaneous pneumomediastinum are more prevalent in sighthounds than other dog breeds undergoing thoracic CT

Sánchez Jiménez,

Schofield,

Plested

2024

Vet Radiology Ultrasound

View full text Add to dashboard Cite

Spontaneous pneumomediastinum is an uncommon condition described in veterinary medicine with concurrent respiratory disease. It can be caused by the Macklin effect, which is when gas leaks from the alveoli into the surrounding interstitial lung tissue. Pulmonary interstitial emphysema (PIE) is the presence of gas within the pulmonary vascular sheaths and indicates the presence of the Macklin effect. In the authors’ experience, spontaneous pneumomediastinum and PIE are more prevalent in sighthound dogs than in other breeds and are often considered incidental findings. This retrospective, observational, cross‐sectional study compared the prevalence of PIE and subsequent pneumomediastinum in sighthound with other purebred dogs. It characterized the appearance of PIE in CT and analyzed a possible association with concomitant pulmonary pathologies or with the use of general anesthesia. Medical records and thoracic CTs of sighthounds and nonsighthound dogs from two institutions were reviewed. A total of 256 dogs, comprising 127 sighthounds and 129 other purebred dogs, were included. The prevalence of PIE and pneumomediastinum was statistically higher in sighthound (14.2%) compared with other nonsighthound dogs (2.2%). There was no statistical association between the presence of PIE and pneumomediastinum with different age and weight groups or with sex. There was no statistical difference in the prevalence of PIE and pneumomediastinum between dogs with and without pulmonary pathology or in dogs undergoing CT with sedation or general anesthesia. Spontaneous pneumomediastinum in sighthounds is more prevalent than in other breeds, and its prevalence is not associated with the presence of pulmonary pathology or the use of general anesthesia.

show abstract

Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Pulmonary interstitial emphysema and spontaneous pneumomediastinum are more prevalent in sighthounds than other dog breeds undergoing thoracic CT

Sánchez Jiménez,

Schofield,

Plested

2024

Vet Radiology Ultrasound

View full text Add to dashboard Cite

show abstract

“…However, nearly 50% of all respondents did not use numerical values at all or used them in less than 25% of the cases. To date, equations only accounting for body weight have been reported for C RS and R RS values in healthy dogs [8,9]. Additional information and reference intervals are necessary to allow objective data interpretation.…”

Section: Discussionmentioning

confidence: 99%

A Survey on the Use of Spirometry in Small Animal Anaesthesia and Critical Care

Raillard

Levionnois

Mosing

2022

Animals

View full text Add to dashboard Cite

The objective was to document the use of spirometry and ventilation settings in small animal anaesthesia and intensive care through a descriptive, open, online, anonymous survey. The survey was advertised on social media and via email. Participation was voluntary. The google forms platform was used. It consisted of eight sections in English: demographic information, use of spirometry in spontaneously ventilating/mechanically ventilated dogs, need for spirometry, equipment available and calibration status, ventilation modes, spirometry displays, compliance (CRS) and resistance (RRS) of the respiratory system. Simple descriptive analyses were applied. There were 128 respondents. Respondents used spirometry more in ventilated dogs than during spontaneous breathing. Over 3/4 of the respondents considered spirometry essential in “selected” (43%) or “most” cases (33%). Multiple devices and technologies were used. The majority of the respondents were not directly involved in or informed about the calibration of their equipment. Of all displays, pressure-volume loops were the most common. Values of CRS and RRS were specifically monitored in more than 50% of cases by 44% of the respondents only. A variety of ventilation modes was used. Intensivists tend to use smaller VT than anaesthetists. More information on reference intervals of CRS and RRS and technical background on spirometers is required.

show abstract

“…Criterion 2 was divided based on skull types, which were (1) dolichocephalic, (2) mesocephalic, and (3) brachycephalic [15]. Criterion 3 was divided based on thoracic conformations, which were (1) deep-chest, (2) round-chest (or intermediate-chest), and (3) barrel-chest (or broad-chest) [16,17].…”

Section: Animalsmentioning

confidence: 99%

The Differences in Radiographic Vertebral Size in Dogs with Different Chest and Skull Types

Phansangiemjit,

Kasemjiwat,

Patchanee

et al. 2024

Animals

View full text Add to dashboard Cite

The objective of this study was to elucidate the differences in vertebral length, vertebral height, and vertebral length/height ratio of the fourth thoracic vertebra (T4), the second lumbar vertebra (L2), the fifth lumbar vertebra (L5) and the seventh lumbar vertebra (L7) based on radiographs in dogs with various body sizes, skull types, and thoracic conformations and to determine the relationships of these parameters with age and sex. A total of 258 dogs were included in this study and classified by three criteria—BW (Criterion 1), skull type (Criterion 2), and thoracic conformation (Criterion 3). Age had weak negative correlations with vertebral length and height. Sex did not affect the vertebral size parameters. BW had strong positive correlations with vertebral length and height, but there was no influence of BW on vertebral length/height ratio. Regarding the different body sizes and conformations, large breeds had vertebrae with significantly greater length and height than small and medium breeds (p < 0.001). In Criterion 2, the vertebrae of the mesocephalic dogs had significantly greater length and height than those of the brachycephalic and dolichocephalic dogs (p < 0.05). In Criterion 3, both deep-chest and round-chest dogs had vertebrae with significantly greater length and height than the barrel-chest dogs (p < 0.0001). Only vertebral length/height ratios of T4 were not influenced by age, sex, BW, skull type, and thoracic conformation. Age, differences in body size, skull type, and thoracic conformation could affect the vertebral size in dogs. Therefore, using breed-specific vertebral lengths and/or heights is a better approach for comparative radiographic analysis with vertebral measurements.

show abstract

Factors affecting respiratory system compliance in anaesthetised mechanically ventilated healthy dogs: a retrospective study

Cited by 9 publications

References 33 publications

Pulmonary interstitial emphysema and spontaneous pneumomediastinum are more prevalent in sighthounds than other dog breeds undergoing thoracic CT

Pulmonary interstitial emphysema and spontaneous pneumomediastinum are more prevalent in sighthounds than other dog breeds undergoing thoracic CT

A Survey on the Use of Spirometry in Small Animal Anaesthesia and Critical Care

The Differences in Radiographic Vertebral Size in Dogs with Different Chest and Skull Types

Contact Info

Product

Resources

About