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Question: From St. Petersburg, Russia: I have had type 1 diabetes for 28 years, my control is reasonable (last hemoglobin A1c was 7.4%), and except for more and more problems with recognizing hypoglycemia and some microalbuminuria, I am doing okay. However, recently I noticed that my heart rate at rest rarely goes below 90 (it used to be between 60 and 70). What is this? Answer: The autonomic nervous system has control of the pacemaker of the heart. There is a sympathetic innervation and a parasympathetic innervation. When neuropathy occurs, one of the manifestations can be loss of parasympathetic innervation into the pacemaker of the heart. This leaves an individual with unopposed sympathetic innervation and an increased resting heart rate. Other things to check would include an electrocardiogram, in order to rule out a primary irregular heart rhythm. I would also make sure you do not have any silent injury to the heart from undiagnosed coronary artery disease. This can be screened with an electrocardiogram but would be better tested by performing an exercise stress test. Another thing to rule out is hyperthyroidism. JTL DTQ-20010817035512 Original posting 28 Aug 2001 Posted to Complications and Thyroid

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			Jump to a new section --[ Getting Around ]-- Home Page What's New Privacy Policy Search CWD --[ People ]-- Family Support Network Adults with Diabetes Care Photos Chat Rooms Conferences Kids with Diabetes Parents Parent Humor Scholarships and Financial Aid Grandparents Humorous Tidbits Jobs Mailing Lists CWD Forums Poetry and Art Videos Polls Quilt for Life Surveys Blogs --[ Clinic ]-- Ask the Diabetes Team Alternate Site Testing Alternative Treatments Care Suggestions CWD Español Diabetes Basics Diabetes at School 504 Plans Diabetes Camps Diabetes Dictionary Insulin Pumps Nutrition Podcasts Presentations Products Product Marketplace Sports Studies Warning Signs --[ Sources ]-- News and Information Diabetes Advocacy Links to Other Web Sites Press Releases Regional Information Services Support Groups --[ Feedback ]-- About CWD Advertise Awards Contribute Your Experiences Disclaimer Letters to the Editor Logos and Linking Share our Brochures

Last Updated: Sun Jan 15 12:18:32 2006
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