Sinoatrial arrest overview

Revision as of 17:17, 1 February 2013 by Aarti Narayan (talk | contribs)
Jump to navigation Jump to search

Sinoatrial arrest Microchapters

Home

Patient Information

Overview

Historical Perspective

Pathophysiology

Causes

Differentiating Sinoatrial arrest from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

Chest X Ray

Echocardiography

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Surgery

Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Sinoatrial arrest overview On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Sinoatrial arrest overview

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Sinoatrial arrest overview

CDC on Sinoatrial arrest overview

Sinoatrial arrest overview in the news

Blogs on Sinoatrial arrest overview

Directions to Hospitals Treating Sinoatrial arrest

Risk calculators and risk factors for Sinoatrial arrest overview

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Under certain circumstances, the SA node fails to initiate an impulse at the expected time in the cardiac cycle. In the absence of an impulse from the SA Node neither the atria nor the ventricles are stimulated and thus an entire PQRST complex drops out for 1 beat(or more). This is called sinoatrial (SA) arrest. In other instances the impulse is initiated normally but is blocked within the SA Node and never reaches the atria and ventricles. This is called sinus exit block or sinoatrial block. Sinus arrest is one of several variants of sinus node dysfunction. The word sinus pause is used to indicate a pause in the generation of QRS complexes for 3 seconds or less. If the delay is longer than this, then the term sinus arrest is used. If there is a markedly prolonged or permanent cessation of P wave and QRS complexes, then the term asystole is applied.

References

Template:WH Template:WS