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Rhythm strip of sinus bradycardia at 50 bpm. Sinus bradycardia is commonly seen in normal healthy persons and athletes in the absence of pathophysiological diseases or conditions. [1] Different factors or etiologies could lead to the dysfunction of the sinus node, causing a malformation or prolongation of the impulse.
In clinical practice, elderly people over age 65 and young athletes of both sexes may have sinus bradycardia. [1] The US Centers for Disease Control and Prevention reported in 2011 that 15.2% of adult males and 6.9% of adult females had clinically defined bradycardia (a resting pulse rate below 60 BPM). [41]
Often sinus node dysfunction produces no symptoms, especially early in the disease course. Signs and symptoms usually appear in more advanced disease and more than 50% of patients will present with syncope or transient near-fainting spells as well as bradycardias that are accompanied by rapid heart rhythms, referred to as tachycardia-bradycardia syndrome [4] [5] Other presenting signs or ...
Human infectious diseases may be characterized by their case fatality rate (CFR), the proportion of people diagnosed with a disease who die from it (cf. mortality rate).It should not be confused with the infection fatality rate (IFR), the estimated proportion of people infected by a disease-causing agent, including asymptomatic and undiagnosed infections, who die from the disease.
Thompson Cancer Survival Center operated by Covenant Health; Trousdale Medical Center (Hartsville) Turkey Creek Medical Center (Knoxville) Unicoi County Memorial Hospital (Erwin) Unity Medical Center (Manchester) University of Tennessee Medical Center (Knoxville) Vanderbilt Children's Hospital; The Vanderbilt Clinic; Vanderbilt Diabetes Center
Traffic deaths continue to be one of the highest causes of death for many age groups. According to the Tennessee Department of Transportation, nearly 40,000 people are killed annually in traffic ...
The University of Tennessee Medical Center (UTMC) is an academic medical center located in Knoxville, Tennessee and serves as a referral center for East Tennessee and regions in Kentucky and North Carolina. The University of Tennessee Graduate School of Medicine (UTGSM) oversees residency and medical student education at UTMC.
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