噪声对血压的影响

该文综述了噪声对血压影响以及可能的影响机制.实验室研究发现,大鼠连续暴露稳态噪声2h收缩压升高,停止暴露后,血压很快恢复到暴露前水平.在较强噪声较长时间作用下,可引起血压升高,对敏感性大鼠表现更为明显.人群研究发现,长期接触噪声可引起高血压患病率升高,并且有报道提示个体对噪声的易感性是高血压的独立危险因素.噪声对精神神经系统的影响,噪声对交感神经活性的影响以及噪声对血管反应性的影响都与高血压的发病机理学说有非常相似之处.

Adverse Effect of Noise on Blood Pressure

The adverse effect of noise exposure on blood pressure and its potential nechanism were reviewed. Animal studies Showed that rats had higher systolic hypenension after exposure to stable noise for 2 hours. But it could quickly recover to normal condition when rats stopped exposure to noise. If rats exposed to noise long time than 2 hours, the blood pressure were kept high continuously, which was more often noted among sensitive species of rats. Human studies showed that occllrrence of hypertension among long-term noise exposed populations was high. Individual susceptibility to noise was a independent risk factor of hypertension. Such effects maybe relate to the effect of noise on nervous and mental system, sympathetic nerve activity and vascular response, which are very similar to mechanism of hypertension.