Laboratory of Small Animal Surgery, Azabu University, Kanagawa, Japan.
J Feline Med Surg. 2021 Feb;23(2):98-104. doi: 10.1177/1098612X20932255. Epub 2020 Jun 18.
The purpose of this study was to determine the impact of ageing on the cardiovascular system of healthy adult cats.
Six experimental cats were used. Echocardiography and measurements of systolic blood pressure (SBP) were performed every year for 8 years (from 1 year of age to 8 years of age) in all cats. Age-related changes to left ventricular (LV) structures, LV systolic and diastolic function, and SBP were assessed.
There were no significant changes in LV structures and SBP. Peak longitudinal strain rate during systole was decreased at 8 years of age, and peak longitudinal strain rate during diastole was decreased from 6 years of age.
This study revealed that some measures of cardiac function recorded in six healthy cats from 1 to 8 years of age were affected as the cats got older; however, there were no structural changes or changes in measurements that are routinely assessed in clinical practice.
本研究旨在确定衰老对健康成年猫心血管系统的影响。
使用 6 只实验用猫。对所有猫进行了 8 年的超声心动图和收缩压（SBP）测量（从 1 岁到 8 岁）。评估了左心室（LV）结构、LV 收缩和舒张功能以及 SBP 的与年龄相关的变化。
LV 结构和 SBP 没有明显变化。收缩期峰值纵向应变率在 8 岁时降低，舒张期峰值纵向应变率从 6 岁开始降低。
本研究表明，6 只从 1 岁到 8 岁的健康猫的一些心脏功能测量值随着猫的年龄增长而受到影响；然而，在临床实践中常规评估的结构或测量值没有变化。
