The Rational Clinical Examination
David L. Simel, Drummond Rennie
Cardiac Arrhythmia
Paaladinesh Thavendiranathan, Akshay Bagai, Clarence Khoo, Paul Dorian, Niteesh K. Choudhry
Box 74-1 Differential Diagnosis of Palpitations
Topics Discussed:
algorithm, cardiac arrhythmia, criterion standard comparisons (diagnostic tests), diagnostic process, tachycardia
Excerpt:
"Palpitations are a common, unpleasant, and often alarming awareness
of heartbeats,1 with a prevalence as high as 16% in
medical outpatients.2 They often pose a clinical
challenge3 because of the wide differential diagnosis
(Box 74-1). Palpitations may occur due to a change or abnormality
in heart rhythm, such as an arrhythmia (ie, an abnormal, disordered,
or disorganized heartbeat), due to an appropriate increase in normal
sinus rate, or with a normal sinus rate and rhythm due to heightened
sensitivity and perception of one's heartbeats (Supplemental Figure
1)...."
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