Cause Slower Heart Rates On Diabetes

1306 Words Mar 7th, 2016 6 Pages
cause slower heart rates [95]. We cannot rely solely on reduced heart rates only to diagnose CAN because with advanced nerve dysfunction, heart rates can be normal [95] but it persists in higher rates than patients without any diseases [96]. As a result, heart rate cannot be a reliable factor to determine CAN; however, decreased heart rate is the primary manifestation of CAN [95]. CAN is considered as a common chronic complication of diabetes mellitus that threatens life of patients with diabetes [97]. Its worldwide prevalence varies from 1.6% to 90% [98]. Dysfunction of autonomic nerve fibers that regulate heart rate, cardiac output, myocardial contractility, cardiac electrophysiology, blood vessel constriction and dilatation can be defined as CAN [97, 99]. There are many cardiac disorders that are associated with CAN such as resting tachycardia, intraoperative cardiovascular instability, arrhythmias, asymptomatic myocardial infarction and ischemia and increased rate of mortality after myocardial infarction [97, 99]. CAN is diagnosed by several clinical symptoms, such as postural hypotension, dizziness, light headedness, presyncope, syncope and early fatigue and exhaustion during exercise; all of these are demonstrated in later stages [98]. The first finding of CAN is, decreased heart rate variability (HRV), which is a subclinical finding and can be diagnosed through deep respiration [100]. It can occur even in normal heart rate conditions [100]. Increased resting heart…

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