Sinus Tachycardia: Or something else? Differential Diagnosis

Respiratory System (J00-J99)

Blood, blood-forming organs – immune system (D50-D90).

  • Anemia (anemia)

Endocrine, nutritional, and metabolic diseases (E00-E90).

Factors influencing health status and leading to health care utilization (Z00-Z99).

  • Allergies

Cardiovascular system (I00-I99)

  • Aortic valve insufficiency – defective closure of the aortic valve of the heart.
  • Atrial tachycardia (AT; tachycardia originating in the atrium).
    • Atrial flutter – Atrial macro-reentry tachycardia based on regular and uniform atrial activation with identical P or flutter wave morphology (usually with absence of a regular isoelectric line).
    • Atrial fibrillation – transient (paroxysmal or intermittent) or permanent (permanent) cardiac arrhythmia with disordered activity of the atria.
  • Atrioventricular reentry tachycardia.
  • Cor pulmonale – right heart strain due to pulmonary disease.
  • Extrasystoles – heartbeat that occurs outside the normal heart rhythm.
  • Endocarditis (inflammation of the inner lining of the heart).
  • Heart failure (cardiac insufficiency)
  • Hyperkinetic heart syndrome – hyperdynamic circulatory disorder (= functional heart complaints); symptom complex of tachycardia (rapid pulse), high blood pressure, decreased performance and unsystematic dizziness.
  • Hypotension – too low blood pressure
  • Inappropriate sinus tachycardia (IAST) – pathological acceleration of normotopic automatic function without organic or drug cause; resting rate is > 100 beats/min and mean heart rate on 24-hour ECG is > 90 beats/min.Diagnostic criteria include:
    • Persistent (sustained) sinus tachycardia with a rate of > 100 beats/min during the day with a marked overshooting increase with physical activity and nocturnal rate normalization.
    • P-wave morphology of tachycardia and endocardial activation are identical to those in sinus rhythm
    • Tachycardia and symptoms do not occur in a seizure-like fashion
    • Secondary genesis such as heart failure (cardiac insufficiency), hyperthyroidism, (hyperthyroidism). Pheochromocytoma (catecholamine-producing tumor of the chromaffin cells of the adrenal medulla (85% of cases) or sympathetic ganglia), sepsis (blood poisoning) or lack of training is excluded.
  • Mitral valve regurgitation – defective closure of the mitral valve of the heart.
  • Myocardial infarction (heart attack)
  • Myocarditis (inflammation of the heart muscle)
  • Pericarditis (inflammation of the pericardium)
  • Postural tachycardia syndrome (POTS) ((lat. ) posture = affecting the posture of the body; synonyms: postural orthostatic tachycardia syndrome or orthostatic intolerance) – particular form of orthostatic dysregulation in which there is no drop in blood pressure when changing to the upright position; increase in heart rate of at least 30 beats/min within 10 minutes of being upright or to at least 120 beats/min absolute and no pathological drop in blood pressure (systolic drop not more than by 20 mmHg and diastolic drop not more than by 10 mmHg); Occurrence: Women (80% of cases), esp. younger women; age between 15 and 50 years; spontaneous recovery in about 50% of patients within one year.
  • Ventricular tachycardia – life-threatening arrhythmia from the ventricle.

Infectious and parasitic diseases (A00-B99).

  • Infectious and parasitic diseases, without specifying the disease.

Liver, gallbladder and bile ducts – pancreas (pancreas) (K70-K77; K80-K87).

Neoplasms – tumor diseases (C00-D48).

  • Pheochromocytoma – usually benign (benign) tumor (about 90% of cases), which originates mainly from the adrenal gland and can lead to hypertensive crisis (hypertensive crisis).

Psyche – nervous system (F00-F99; G00-G99).

  • Anxieties

Symptoms and abnormal clinical and laboratory findings not elsewhere classified (R00-R99)

  • Fever

Medication

Further

  • Infants, toddlers
  • Consumption of stimulants
    • Alcohol (higher alcohol concentrations are linearly associated with higher heart rate)
    • Caffeine (coffee, etc.)
    • Tobacco (smoking)
  • Drug use
  • Physical activity
    • Physical exertion
  • Psycho-social situation
    • Anxiety
    • Mental tension
  • Bleeding with volume loss
  • Pain
  • Co-intoxication (synonyms: carbon monoxide intoxication; carbon monoxide poisoning).