Radiographic and computed tomographic evaluation of tracheal diameter and length in kittens.

Autor:	Seo D; 1Veterinary Emergency Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Gwanak-gu, Seoul, South Korea., Kang K; 2Eum Animal Medical Center, Gyeonggi-do, South Korea., Lim S; 1Veterinary Emergency Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Gwanak-gu, Seoul, South Korea., Namgoong B; 1Veterinary Emergency Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Gwanak-gu, Seoul, South Korea., Choe A; 1Veterinary Emergency Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Gwanak-gu, Seoul, South Korea., Uhm H; 1Veterinary Emergency Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Gwanak-gu, Seoul, South Korea., Hong H; 1Veterinary Emergency Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Gwanak-gu, Seoul, South Korea., Lee N; 1Veterinary Emergency Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Gwanak-gu, Seoul, South Korea., Kim I; 1Veterinary Emergency Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Gwanak-gu, Seoul, South Korea., Heo S; 1Veterinary Emergency Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Gwanak-gu, Seoul, South Korea., Kim MS; 1Veterinary Emergency Medicine, Department of Veterinary Clinical Science, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Gwanak-gu, Seoul, South Korea.
Jazyk:	angličtina
Zdroj:	Journal of the American Veterinary Medical Association [J Am Vet Med Assoc] 2023 Dec 22; Vol. 262 (3), pp. 364-369. Date of Electronic Publication: 2023 Dec 22 (Print Publication: 2024).
DOI:	10.2460/javma.23.09.0538
Abstrakt:	Objective: To measure the tracheal diameter and length in kittens using radiography and CT and to evaluate the concordance between measurements obtained with these 2 modalities. Animals: 15 kittens with an estimated age of 12 weeks and mean body weight of 1.49 kg. Methods: Radiographic and CT images were retrospectively evaluated to measure tracheal lengths and diameters. Tracheal diameters were measured at 5 different sites (A [at the level of the C2-3 intervertebral disk space], B [at the level of the C4-5 intervertebral disk space], C [at the cranial end of the manubrium sterni], D [at the level of the second rib], and E [1 cm cranial to the carina]) along the trachea. The cross-sectional area and transverse and vertical diameter ratios were calculated for each measurement site. Results: The cross-sectional area was largest at site A and decreased from site C to site E. Based on the vertical diameter ratio, the tracheal shape was most circular at sites A and E, whereas from sites B to D, it was elliptical. The vertical diameters of the trachea on radiography and CT did not differ statistically significantly. However, the tracheal length measured on radiography was approximately 6 mm longer than that measured on CT (P < .05). Clinical Relevance: Using the first rib as an anatomical reference, the placement of a cuffed endotracheal tube is recommended in kittens. In emergency situations, regression equations based on body weight may be helpful in predicting tracheal diameters.
Databáze:	MEDLINE
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