sinus tachycardia

• related: Medicine, Cardiology, tachycardia
• tag: #note

Causes

• sepsis
  • fever
  • usually persistent
• volume
  • Anemia
  • Dehydration
  • usually persistent
• stress
  • Pain
  • Anxiety
  • ACS
  • HF
• others
  • Withdrawal
  • Intoxication
  • TSH

Inappropriate sinus tachycardia

• IST
• pt: women in 30s-40s
• elevated resting heart rate
• exaggerated increase with light activity
• decreased rate with sleep
• treatment:
  • removal of aggrevating factors, exercise
  • BB, CCB, ivabradine

POTS

• postural orthostatic tachycardia syndrome, POTS syndrome
• dysautonomia
• tachycardia with standing
• diagnostic criteria
  • HR increase 30 or more OR
  • increase to >120
  • within 10 minutes of standing
• dx
  • confirm with tilt table test
• treatment
  • behavioral modification
  • compression stocking
  • exercise training
  • increase fluid intake
  • BB, fludrocortisone, SSRI, midrodrine, pyridostigmine