Ver el código de «Sick sinus syndrome»

==Background==
*Collection of bradyarrhythmias with or without tachycardia<ref>Semelka, M et Al. Sick Sinus Syndrome: A Review. Am Fam Physician. 2013 May 15;87(10):691-696. http://www.aafp.org/afp/2013/0515/p691.html</ref>
*50% have alternating bradycardia and tachycardia

==Clinical Features==
*Clinical manifestations related to end-organ hypoperfusion
**Syncope/pre-syncope (50%)

==Differential Diagnosis==
===Causes===
#Intrinsic: 
##degenerative fibrosis
##infiltrative disease process
##ion channel dysfunction
##SA node remodeling
#Extrinsic: 
##pharmacologic
##metabolic/electrolyte disturbance
##autonomic, OSA

==Workup==
*ECG identification, inpatient telemetry, outpatient Holter monitoring, event monitoring, loop monitoring
**ECG frequently negative for findings early in disease course

==Management==
#remove extrinsic factors and/or pacemakers
##Pacemakers do not reduce mortality, only decrease symptoms

==Disposition==
Admit

===Complications===
#(50%) Tachy-brady syndrome with atrial fibrillation or atrial flutter
#(50%) AV block

==See Also==
*[[Symptomatic Bradycardia]]

==External Links==

==Sources==
<references/>