Junctional tachycardia causes: Difference between revisions
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__NOTOC__ | __NOTOC__ | ||
{{Junctional tachycardia}} | {{Junctional tachycardia}} | ||
{{CMG}} | {{CMG}}; {{AE}} {{AO}} | ||
==Overview== | ==Overview== | ||
Junctional tachycardia may oocur either as a result of enhanced [[automaticity]] of the [[AV node]] when the [[SA node]] is bradycardic or discharges at a slower rate than the [[AV node]] (e.g. [[myocardial infarction]], [[digitalis toxicity]]) or when an ectopic focus with an abnormal [[automaticity]] develops within or adjacent to the [[AV junction]]. Other causes include: [[hypoxia]], [[electrolyte imbalance]], and [[infections]] such as [[rheumatic fever]], [[Lyme disease]]. | |||
==Causes== | |||
===Life Threatening Causes=== | ===Life Threatening Causes=== | ||
Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated. | Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated. | ||
*[[Digitalis toxicity]] | |||
*[[Hypokalemia]] | |||
*[[Hypothermia]] | |||
*[[Lithium|Lithium toxicity]] | |||
*[[Myocardial infarction]] | |||
===Common Causes=== | ===Common Causes=== | ||
*[[Beta blockers]] | |||
*[[Cardiac surgery]] | |||
*[[Digitalis toxicity]] | |||
*[[Hypokalemia]] | |||
*[[Hypothermia]] | |||
*[[Hypoxia]] | |||
*[[Myocardial infarction]] | |||
*[[Pericarditis]] | |||
===Causes by Organ System=== | ===Causes by Organ System=== | ||
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|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
| '''Overdose/Toxicity''' | | '''Overdose/Toxicity''' | ||
|bgcolor="Beige"| [[Beta blockers]], [[Carbamazepine#Adverse effects| | |bgcolor="Beige"| [[Beta blockers]], [[Carbamazepine#Adverse effects|carbamazepine poisoning]], [[digitalis toxicity]], [[lithium]] | ||
|- | |- | ||
|-bgcolor="LightSteelBlue" | |-bgcolor="LightSteelBlue" | ||
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*[[Isoproterenol|Isoproterenol infusion]] | *[[Isoproterenol|Isoproterenol infusion]] | ||
*[[Leptospirosis]] | *[[Leptospirosis]] | ||
*[[Lithium]] | *[[Lithium|Lithium toxicity]] | ||
*[[Long QT Syndrome classification#LQT4|LQT type 4]] | *[[Long QT Syndrome classification#LQT4|LQT type 4]] | ||
*[[Lyme disease]] | *[[Lyme disease]] | ||
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{{Reflist|2}} | {{Reflist|2}} | ||
[[Category:Crowdiagnosis]] | |||
[[Category:Cardiology]] | [[Category:Cardiology]] | ||
[[Category:Up-To-Date]] | [[Category:Up-To-Date]] | ||
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[[Category:Arrhythmia]] | [[Category:Arrhythmia]] | ||
[[Category:Electrophysiology]] | [[Category:Electrophysiology]] | ||
[[Category:Disease]] | [[Category:Disease]] | ||
{{WikiDoc Help Menu}} | {{WikiDoc Help Menu}} | ||
{{WikiDoc Sources}} | {{WikiDoc Sources}} | ||
Latest revision as of 18:44, 6 April 2015
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Junctional tachycardia Microchapters |
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Case Studies |
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Junctional tachycardia causes On the Web |
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American Roentgen Ray Society Images of Junctional tachycardia causes |
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Risk calculators and risk factors for Junctional tachycardia causes |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Ayokunle Olubaniyi, M.B,B.S [2]
Overview
Junctional tachycardia may oocur either as a result of enhanced automaticity of the AV node when the SA node is bradycardic or discharges at a slower rate than the AV node (e.g. myocardial infarction, digitalis toxicity) or when an ectopic focus with an abnormal automaticity develops within or adjacent to the AV junction. Other causes include: hypoxia, electrolyte imbalance, and infections such as rheumatic fever, Lyme disease.
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
- Beta blockers
- Cardiac surgery
- Digitalis toxicity
- Hypokalemia
- Hypothermia
- Hypoxia
- Myocardial infarction
- Pericarditis
Causes by Organ System
| Cardiovascular | Cardiac surgery, LQT type 4, myocardial infarction, pericarditis, Wolff-Parkinson-White syndrome |
| Chemical/Poisoning | Grayanotoxin |
| Dental | No underlying causes |
| Dermatologic | No underlying causes |
| Drug Side Effect | Amiodarone, beta blockers, cimetidine, clonidine, diltiazem, flumazenil, guanethidine, isoproterenol infusion, lithium, methyldopa, reserpine, verapamil |
| Ear Nose Throat | No underlying causes |
| Endocrine | Hemochromatosis, hypothyroidism |
| Environmental | Hypothermia |
| Gastroenterologic | No underlying causes |
| Genetic | Emery-Dreifuss muscular dystrophy, LQT type 4, muscular dystrophy, Wolff-Parkinson-White syndrome |
| Hematologic | No underlying causes |
| Iatrogenic | Cardiac surgery |
| Infectious Disease | Chagas disease, diphtheria, leptospirosis, Lyme disease, rheumatic fever, salmonella typhosa, trichinosis |
| Musculoskeletal/Orthopedic | Emery-Dreifuss muscular dystrophy, muscular dystrophy |
| Neurologic | No underlying causes |
| Nutritional/Metabolic | Hypokalemia, hypothermia |
| Obstetric/Gynecologic | No underlying causes |
| Oncologic | No underlying causes |
| Ophthalmologic | No underlying causes |
| Overdose/Toxicity | Beta blockers, carbamazepine poisoning, digitalis toxicity, lithium |
| Psychiatric | No underlying causes |
| Pulmonary | Hypoxia |
| Renal/Electrolyte | Hypokalemia |
| Rheumatology/Immunology/Allergy | Amyloidosis, scleroderma |
| Sexual | No underlying causes |
| Trauma | No underlying causes |
| Urologic | No underlying causes |
| Miscellaneous | No underlying causes |
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