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【科普】是不是起搏器的安装，损伤了迷走神经
Q. I recently had a pacemaker implanted. While the process was going on, I felt a pulsation that I reported to the doctor. I still feel it seven months later. Other symptoms include low blood pressure, an increase in weight, and digestive changes. My primary care doctor thinks that my vagus nerve could have been damaged when the pacemaker was implanted. Is that possible?
A. I don't have enough information to comment on your case. In general, pacemaker placement rarely damages the vagus nerve, which runs from the brain to the throat, voice box, windpipe, lungs, heart, esophagus, stomach, and intestines. Symptoms such as you describe could be caused by a number of problems, including lead perforation or pacemaker syndrome. Here is more information on those problems:
Lead perforation. The wires (also called leads, pronounced leeds) that deliver tiny pulses of electricity to the heart usually stay where a doctor places them. Sometimes, though, a lead can move out of position and poke through the heart muscle and into the sac around the heart (the pericardium), the chest wall, or the diaphragm. Perforation can cause symptoms ranging from shortness of breath or chest pain to cough, constant hiccups, or abdominal pain.
Pacemaker syndrome. This uncommon condition occurs when a pacemaker throws off the careful coordination between the beating of the upper and lower chambers of the heart. It can create a wide variety of symptoms, such as dizziness, shortness of breath, fatigue, feeling a pulsation in the neck or abdomen, headache, or extra chest colds.
Someone with symptoms like yours should consult a cardiologist or an electrophysiologist (a doctor who specializes in heart rhythm problems). Diagnosing the problem usually requires an x-ray and an electrocardiogram, as well as tests of the pacemaker to determine how it is working.
— Peter Zimetbaum, M.D.Associate Professor of MedicineHarvard Medical SchoolBeth Israel Deaconess Medical Center 浙江省农村卫生适宜技术文件类型:DOC/Microsoft Word- 文字版}指标的动态变化,判断溶栓效果. 其他物治疗:溶栓治疗后抗血小板药物、抗凝药物、B受... 2.在本电子监测系统安装使用前,应完善围产保健监测、儿童保健监测、出生监测等保健监...www.zswsj.gov.cn/...一至四批简介.doc-2011-01-04-[标签:content2]
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作者:admin@医学,生命科学 2011-01-22 13:08
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