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Diagnostic Approach to Palpitations

Definition. Undue awareness of one's own heart beat. . Differential Diagnosis of Palpitations. Cardiac (43%)Psychiatric causes (31%)Drugs and medicationsExtracardiac causes. Differential Diagnosis of Palpitations/ Arrhythmias. Atrial fibrillation/flutterBradycardia caused by advanced AV block or sinus node dysfunctionBradycardia-tachycardia syndrome(sick sinus syndrome)Multifocal atrial tachycardiaPremature supraventricular or ventricular contractionsSinus tachycardiaSupraventricula30057

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Diagnostic Approach to Palpitations

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    1. Diagnostic Approach to Palpitations Jiyo Shin PGY-2

    2. Definition Undue awareness of one’s own heart beat

    4. Differential Diagnosis of Palpitations Cardiac (43%) Psychiatric causes (31%) Drugs and medications Extracardiac causes

    5. Differential Diagnosis of Palpitations/ Arrhythmias Atrial fibrillation/flutter Bradycardia caused by advanced AV block or sinus node dysfunction Bradycardia-tachycardia syndrome(sick sinus syndrome) Multifocal atrial tachycardia Premature supraventricular or ventricular contractions Sinus tachycardia Supraventricular tachycardia Ventricular tachycardia Wolff-Parkinson-White syndrome

    6. Etiology of Palpitations -CARDIAC ARRHYTHMIAS Episodes of ventricular tachycardia and supraventricular tachycardia may cause palpitations but also can be asymptomatic or lead to syncope. Palpitations associated with dizziness, near-syncope, or syncope suggest tachyarrhythmia and are potentially more serious Orthostatic intolerance or inadequate cerebral perfusion on upright posture may result in palpitations, tachycardia, altered mentation, headache, nausea, pre-syncope, and, occasionally, syncope. Orthostatic intolerance is m/c in women of childbearing age

    7. Differential Diagnosis of Palpitations/ Psychiatric etiology Anxiety disorder Panic attacks

    8. Etiology of Palpitations -ANXIETY OR PANIC DISORDER Prevalence of panic disorder in patients with palpitations is 15 to 31 percent Screening question; Have you experienced brief periods, for seconds or minutes, of an overwhelming panic or terror that was accompanied by racing heartbeats, shortness of breath, or dizziness? Panic disorder and significant arrhythmias are not mutually exclusive, and that cardiac evaluation still may be necessary in patients with suspected panic disorder

    9. Differential Diagnosis of Palpitations/ Drugs and medications Alcohol, Caffeine beta agonists, phenothiazine, theophylline, isotretinoin, digoxin Cocaine Tobacco

    10. Differential Diagnosis of Palpitations/ Nonarrhythmic cardiac causes Atrial or ventricular septal defect Cardiomyopathy Congenital heart disease Congestive heart failure Mitral valve prolapse Pacemaker-mediated tachycardia Pericarditis Valvular disease (e.g., aortic insufficiency,stenosis)

    11. Differential Diagnosis of Palpitations /Extracardiac causes Anemia, Electrolyte imbalance Fever Hyperthyroidism Hypoglycemia Hypovolemia Pheochromocytoma Vasovagal syndrome

    12. History/PE of Palpitation Description : Fluttering, pounding, or uncomfortable sensation in the chest or neck, or simply an increased awareness of the heartbeat Knowing the circumstances, precipitating factors, and associated symptoms

    14. ECG EVALUATION All patients who complain of palpitations ECG findings warrant further cardiac investigation ; evidence of previous myocardial infarction, left or right ventricular hypertrophy, atrial enlargement, AV block, short PR interval and delta waves (Wolff-Parkinson-White syndrome), prolonged QT interval

    15. ECG EVALUATION ECG exercise testing is appropriate in patients who have palpitations with physical exertion and patients with suspected coronary artery disease or myocardial ischemia.

    16. Sinus tachycardia with electrical alternans

    17. Sinus bradycardia with premature atrial contractions

    18. Atrial fibrillation with premature ventricular contractions

    19. Wolff-Parkinson-White syndrome

    21. Further Diagnostic Testing CONTINUOUS ECG MONITORS (Holter monitor) - continuously to record data for 24 or 48 hours - diary of any symptoms that occur during the monitoring - most expensive - maintained and operated by hospitals or larger outpatient clinics TRANSTELEPHONIC EVENT MONITORS - save data only for the previous and subsequent few minutes when the patient manually activates the monitor

    22. Holter monitor VS Event monitor

    23. Choosing an Ambulatory Monitoring Device Diagnostic yield was 66 to 83 percent when event monitors were used for monitoring, and 33 to 35 percent when Holter monitors were used Event monitors more cost effective 83 to 87 percent of patients had diagnostic transmissions within the first two weeks of using a transtelephonic event monitor

    24. When to use Holter to event monitoring in patients who reliably experience palpitations every day who are not willing to wear an event monitor for two weeks if event monitoring is not available locally

    25. Management If the evaluation of the heart is otherwise normal, ventricular premature contractions or brief episodes of ventricular tachycardia are not associated with increased mortality Appropriate patient education Sustained arrhythmias ;pharmacologic or invasive electrophysiologic study Treat underlying for the noncardiac, psychiatric, or nonarrhythmia cardiac etiology

    26. Management If fail to reveal any abnormality or etiology for palpitations -advised to abstain from caffeine and alcohol, as well as foods or stressful situations that appear to trigger palpitations the majority of patients with palpitations have benign diagnoses and can be treated with reassurance

    29. Summary Get a good history and physical exam Get an EKG Think about heart Think about other than the heart( diet, medication, other medical condition to contribute) Holter or Event monitor for further evaluation Treat heart or underlying issuses

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