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吸烟是冠心病等多种疾病的主要危险因素之一。有人观察到，冠状动脉粥样硬化程度与吸烟量相平行。本文旨在了解吸烟对心功能的影响，尤其是对尚无临床症状的长期吸烟者心脏收缩时间间期（简称心缩问期，STI）的影响。对象和方法一、对象随机顺序收集本院疗养员中35岁以上男性吸
Smoking is one of the major risk factors for many diseases such as coronary heart disease. It was observed that the degree of coronary atherosclerosis and smoking in parallel. This article aims to understand the impact of smoking on cardiac function, especially for long-term smokers with no clinical symptoms of systolic time (referred to as cardiac arrest, STI). Subjects and methods First, the object random collection of patients in our hospital 35-year-old male smoking