超声评估两种不同体型的健康成年猫的肾上腺大小差异

期号：Vol 23, Issue 8,2021,August 1, 2021

作者：Laura Pérez-López, Ana María Wägner, Pedro Saavedra, 

Jose Raduan Jaber, Carlos Melián

摘要来源：

https://journals.sagepub.com/doi/full/10.1177/1098612X20974962

译员：李世昕

一校：朱国

二校：ivy

摘要

关于猫肾上腺的大小，以及肾上腺大小与体重之间关系的研究较少。本研究通过评估猫体重与肾上腺厚度之间的关系，给出健康猫肾上腺最大厚度的参考范围（RIs）。

本次研究纳入39只健康猫。根据猫的体重分成大体重（4-8公斤，26只）和小体重（⩽4公斤，13只）两组，这些猫的体况评分都属于标准体型。所有猫都从肋弓下缘的位置进行超声扫查。从矢状面测量左侧 (MTL) 和右侧 (MTR) 肾上腺的最大背腹厚度（MT）。获得最大厚度（MT）的参考范围（RIs）,包括每只猫左侧肾上腺最大背腹厚度（MTLs）和右侧肾上腺最大背腹厚度（MTLs）。根据美国兽医临床病理协会的参考区间指南，选取90%置信区间的作为参考区间。

所有猫左、右侧肾上腺的厚度没有统计学的显著差异（p=0.543），公猫与母猫的肾上腺厚度之间也没有显著差异（p=0.943）。大体重组猫的肾上腺最大厚度显著比小体重组猫的大（3.7 ± 0.6 vs 3.2 ± 0.4 mm; P <0.005）。小体重组猫的肾上腺厚度参考范围的下限是2.4mm（2.2-2.6mm），而大体重组猫参考范围的下限为2.6mm（2.4-2.8mm）。小体重组猫的肾上腺厚度的参考范围上限为3.9mm（3.7-4.1mm），大体重猫的肾上腺厚度的参考范围上限为4.8mm（4.6-5.1mm）。

不同体型的猫在超声检查时使用不同的参考范围可以更准确评估肾上腺的厚度。体重⩽ 4公斤的猫的肾上腺最大厚度（3.9mm）小于体重在4-8公斤的猫肾上腺最大厚度（4.8mm）。

关键词：肾上腺厚度，参考区间，超声，体重

原文：

Ultrasonographic evaluation of adrenal gland size in two body weight categories of healthy adult cats

Laura Pérez-López, Ana María Wägner, Pedro Saavedra, Jose Raduan Jaber, Carlos Melián

https://journals.sagepub.com/doi/full/10.1177/1098612X20974962

Abstract

Objectives

Adrenal gland size and its association with body weight have been rarely evaluated in cats. This study was undertaken to assess the association between feline body weight and adrenal gland thickness, and to propose reference intervals (RIs) for adrenal gland thickness in healthy cats.

Methods

This was a cross-sectional study in which 39 healthy cats were included. The cats were divided into two weight categories, classified as ⩽4.0 kg and >4–8 kg of ideal body weight (with 13 and 26 cats in each group, respectively), which took into consideration the body condition score of the cats. All cats underwent an ultrasound examination that was taken from a subcostal position. Maximum dorsoventral thicknesses of the left (MTL) and right (MTR) adrenal glands were measured in a sagittal plane. RIs were obtained for the maximum thickness (MT), which included the MTLs and MTRs of each cat. RIs with the 90% confidence intervals were calculated according to American Society for Veterinary Clinical Pathology guidelines on RIs.

Results

No statistical differences for adrenal gland thickness were observed between the left and right (P = 0.543) adrenal glands or between male and female cats (P = 0.943). Mean MT was significantly greater in the group of cats weighing >4–8 kg compared with the group of cats weighing ⩽4 kg (3.7 ± 0.6 vs 3.2 ± 0.4 mm; P <0.005). The lower limit of the RI for MT was 2.4 mm (range 2.2–2.6 mm) in the group weighing ⩽4 kg and 2.6 mm (range 2.4–2.8 mm) in the group weighing >4–8 kg. The upper limit of the RI for MT was 3.9 mm (range 3.7–4.1 mm) in the group of cats weighing ⩽4 kg and 4.8 mm (range 4.6–5.1 mm) in the group of cats weighing >4–8 kg.

Conclusions and relevance

The use of RIs based on two group sizes allows for a more accurate ultrasonographic evaluation of adrenal gland thickness in cats. The maximum normal adrenal gland thickness is lower in smaller cats (3.9 mm for those weighing ⩽4 kg and 4.8 mm for those weighing >4–8 kg).

Keywords:Adrenal gland thickness, reference interval, ultrasound, body weight