Sinoatrial nodal reentry tachycardia
(Redirected from Sinus Node Reentry Tachycardia)
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Synonyms and keywords: SA nodal reentrant tachycardia; SANRT; sinus node reentrant tachycardia
Overview
Sinoatrial nodal reentry tachycardia (SANRT) is caused by a reentry circuit localized to the SA node.
Causes
Life Threatening Causes
Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated.
Common Causes
Causes by Organ System
Cardiovascular | Congenital heart disease, ischemic heart disease, post cardiac surgery, valvular heart disease |
Chemical/Poisoning | No underlying causes |
Dental | No underlying causes |
Dermatologic | No underlying causes |
Drug Side Effect | No underlying causes |
Ear Nose Throat | No underlying causes |
Endocrine | No underlying causes |
Environmental | No underlying causes |
Gastroenterologic | No underlying causes |
Genetic | No underlying causes |
Hematologic | No underlying causes |
Iatrogenic | Post cardiac surgery |
Infectious Disease | No underlying causes |
Musculoskeletal/Orthopedic | No underlying causes |
Neurologic | No underlying causes |
Nutritional/Metabolic | No underlying causes |
Obstetric/Gynecologic | No underlying causes |
Oncologic | No underlying causes |
Ophthalmologic | No underlying causes |
Overdose/Toxicity | No underlying causes |
Psychiatric | No underlying causes |
Pulmonary | No underlying causes |
Renal/Electrolyte | No underlying causes |
Rheumatology/Immunology/Allergy | No underlying causes |
Sexual | No underlying causes |
Trauma | No underlying causes |
Urologic | No underlying causes |
Miscellaneous | No underlying causes |
Causes in Alphabetical Order
Diagnosis
Electrocardiogram
- SA node reentry tachycardia has a normal activation sequence with normal appearing p-wave that precedes a regular, narrow QRS complex.
- Although it cannot be distinguished on the surface 12 lead EKG from sinus tachycardia, unlike sinus tachycardia, SA node reentry tachycardia does often terminate with vagal maneuvers.