Edit concept Question Editor Create issue ticket

Atrioventricular Dissociation

AV-Dissociation


Presentation

  • We present a case of a 19-week-old fetus with atrioventricular dissociation, which spontaneously resolved. The mother had no signs of autoimmune disease.[ncbi.nlm.nih.gov]
Meningism
  • We present a case of a young man with meningococcal meningitis and various asymptomatic temporary ECG abnormalities, including sinus bradycardia, atrioventricular dissociation and non specific ST-T changes.[ncbi.nlm.nih.gov]

Workup

Non Specific ST-T Changes
  • We present a case of a young man with meningococcal meningitis and various asymptomatic temporary ECG abnormalities, including sinus bradycardia, atrioventricular dissociation and non specific ST-T changes.[ncbi.nlm.nih.gov]

Treatment

  • The importance of differential diagnosis and treatment in atrioventricular dissociation is emphasized.[ncbi.nlm.nih.gov]
  • Holmes Springer Science & Business Media, ٠٦‏/١٢‏/٢٠٠٧ - 2926 من الصفحات Cardiovascular Medicine, 3rd Edition offers the most up-to-date, user-friendly guidance on the evaluation, diagnosis and medical and surgical treatment of heart and vascular disease[books.google.com]
  • AV Dissociation Treatment Treatment of AV dissociation depends on the cause associated with the underlying problem and the severity of this condition.[healthhype.com]

Prognosis

  • Prognosis and Treatment of Third Degree AV Block Patients with third-degree atrioventricular block (complete AV block) without pacemaker implantation have a poor prognosis, especially if they presented symptoms (syncope).[en.my-ekg.com]
  • The former is more likely to respond to atropine and has a better overall prognosis. Causes of complete heart block The causes are the same as for Mobitz I and Mobitz II second degree heart block.[lifeinthefastlane.com]
  • Prognosis Monomorphic VT usually occurs after myocardial infarction and is a sign of extensive myocardial damage; there is a high mortality, often resulting from impaired ventricular function.[patient.info]
  • Prognosis is usually extremely poor despite resuscitative efforts D. Criteria: 1. Rhythm: none 2. Heart rate: none 3. QRS: none 4. P wave: may be present or have none 5. PR interval: none 6.[andrews.edu]
  • […] emission tomography (PET)ポジトロン放射計断層撮影[法] potential(1)潜在性 【形】 (2)電位 precordial pain前胸[部]痛 preload前負荷 premature beat期外収縮 premature ventricular contraction心室期外収縮 pressure overload圧負荷 prevalence有病率、頻度 primary一次、原発[性] 【形】 proarrhythmia催不整脈 procedure 手技、手順、処置方法 prognosis[tokyo-med.ac.jp]

Etiology

  • Since the subject was an avid jogger, the etiology of the A-V dissociation was considered to be due to physiologically enhanced vagal tone.[ncbi.nlm.nih.gov]
  • The QRS complex is narrow, indicating a supraventricular etiology. P waves are present – however, they are not consistently conducting. Instead, the PR interval is changing.[ecg-interpretation.blogspot.com]
  • Hence, we suggest that woolly hair is a heterogenous condition and genes other than desmoplakin/plakoglobin may be involved in its etiology. Gene studies could not be carried out in our case due to economic constraints.[ijtrichology.com]
  • Etiology First-degree AV block Definition References: [3] [4] [5] Second-degree AV block Mobitz type I /Wenckebach Definition Progressive lengthening of the PR interval until a beat is dropped ; regular atrial impulse does not reach the ventricles (a[amboss.com]

Epidemiology

  • Google Scholar Perlman LV, Ostrander LD, Keller JB, Chiang BN: An epidemiologic study of first degree atrioventricular block in Ecumseh, Michigan. Chest. 1971, 59 (1): 40-46. 10.1378/chest.59.1.40.[bmcresnotes.biomedcentral.com]
  • Frequency International Little epidemiologic information is available regarding the frequency of AV dissociation. Mortality/Morbidity AV dissociation by itself can be benign.[odlarmed.com]
Sex distribution
Age distribution

Pathophysiology

  • Pathophysiology The three key underlying pathophysiological mechanisms that would lead to AV dissociation are Slowing of the dominant atrial pacemaker ( SA node ) to an extent that would allow independent ventricular pacemaker ( junctional escape rhythm[wikidoc.org]
  • Pathophysiology A normal cardiac impulse arises from the sinus node and is conducted through the AV junction, the bundle of His, and the bundle branches to the ventricles.[odlarmed.com]
  • Pathophysiology [ edit ] In the human heart the sinoatrial node is located at the top of the right atrium.[en.wikipedia.org]

Prevention

  • After electrophysiological studies, treatment directed at suppressing AV nodal reentry prevented recurrent tachycardia.[ncbi.nlm.nih.gov]
  • Atrioventricular dissociation is not a primary condition in itself, but rather a symptom of an underlying dysrhythmia due to one of a number of causes that prevent the normal transmission of AV impulses: • Slowing of the dominant pacemaker (usually the[medical-dictionary.thefreedictionary.com]
  • […] comprehensive coverage of every aspect of cardiovascular medicine from cardiac signs and symptoms and the full range of cardiac imaging techniques through management of peripheral vascular disease and the genetic basis for cardiovascular disease to preventive[books.google.com]
  • Prevention Intake of medications that can cause AV dissociation is closely monitored. Electrolyte imbalances should be avoided in patients who are using diuretics and related drugs or other conditions. References[healthhype.com]
  • The third beat is a premature junctional complex that conducts with right bundle branch block aberration, creating refractoriness in the AV node (gray area in the AV level of the ladder diagram) that prevents the next sinus impulse from conducting to[nursingcenter.com]

Ask Question

5000 Characters left Format the text using: # Heading, **bold**, _italic_. HTML code is not allowed.
By publishing this question you agree to the TOS and Privacy policy.
• Use a precise title for your question.
• Ask a specific question and provide age, sex, symptoms, type and duration of treatment.
• Respect your own and other people's privacy, never post full names or contact information.
• Inappropriate questions will be deleted.
• In urgent cases contact a physician, visit a hospital or call an emergency service!