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Tidal breathing flow volume loop analysis of 21 healthy, unsedated, young adult male B eagle dogs
Author(s) -
AdamamaMoraitou KK,
Pardali D,
Menexes G,
Athanasiou LV,
Kazakos G,
Rallis TS
Publication year - 2013
Publication title -
australian veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.382
H-Index - 59
eISSN - 1751-0813
pISSN - 0005-0423
DOI - 10.1111/avj.12064
Subject(s) - tidal volume , breathing , anesthesia , volume (thermodynamics) , eagle , medicine , zoology , biology , chemistry , respiratory system , physics , ecology , thermodynamics
Background Reference values for dogs regarding tidal breathing flow volume loop ( TBFVL ) parameters are scarce in the veterinary literature, so each new study requires a healthy reference population to be studied simultaneously with the diseased one. Objectives To establish reference values for TBFVL parameters in healthy dogs, to detect any potential variability in loop shape and in various TBFVL parameters and to propose clinically useful parameters for TBFVL analysis. Design Cross‐sectional, prospective study. Methods Twenty‐one healthy, unsedated, untrained, young adult, male B eagle dogs, with minimum variability in body weight and somatometry were used. Their good health status was confirmed by physical examination, complete blood count, serum biochemistry, urinalysis, serology and parasitology for D irofilaria immitis , faecal examination, arterial blood gas analysis, electrocardiography, and radiographic and endoscopic examinations of the respiratory tract. The shape of the TBFVLs was assessed initially. Volume, time and flow parameters, as well as their ratios, were calculated; in total 44 parameters were evaluated. Statistical indices, including Cronbach's α, discrimination index, coefficient of variation ( CV ) and 95% confidence intervals were estimated for each parameter. Results One consistently reproducible type of TBFVL shape was identified that had a similar appearance to the letter D . Statistical analysis showed that only two parameters were found to have C ronbach's α lower than 0.80. The CV for the TBFVL parameters ranged from 1.5% to 49%, but the vast majority had values lower than 20%. Eight parameters had very low CV , indicating increased homogeneity. Conclusions A large number of clinically applicable TBFVL parameters were identified. Parameters related to flow and time were considered to correlate more objectively to the functional capacity of the respiratory system of healthy, unsedated dogs.