What is sinus bradycardia and where does it start from. Sinus bradycardia starts from the sinus node; it is a heart rhythm and has a rate of fewer than 60 beats per minute (bps). Simple words on what is sinus bradycardia they are the sinus beat when a resting heart strikes 60 bps or even less. The sinus rhythms cause a P-wave on the ECG which means it is normal in terms of both amplitude and vector. They are tagged on with QRS complex and T waves.A normal baby should have a heart beat of 150 bps; Bradycardia decelerates the premature baby's heart to less than 100 beats per minute. Infection, anemia, change in body temperature, hypoglycemia, airway problems, neurological difficulties are caused due to Bradycardia.
What are sinus bradycardia symptoms?
Sinus bradycardia does not normally have any symptoms. But at times there are indications like dizziness, lightheadedness; exercise intolerance, chest pain and succinctness of breath are seen.
The problems that result due to bradycardia are of two types: they are sinatorial node (SA node) disorder and atrioventricular node (AV node) disorder. The former is called sick sinus syndrome and is due to the weakened conduction of the impulse from the sinus node. The later may result due to weakened conduction in the AV node or even underneath in the bundle of HIS. This may be acquired congenitally (disorder by birth). It is found most commonly in elderly patients.
What is sinus bradycardia cure?
Treatment for asymptomatic patients is not signified, but symptomatic patients should be corrected of underlying electrolyte and acid base disorder. Intravenous atropine gives relief temporarily. Previously isoproterenol was used in patients with bradycardia, but due to the increase in risk its usage has been lessened. Temporary pacing also is recommended for patients who are not responsive to atropine although transcutaneous pacing is the primary choice for physicians.
The medication techniques include therapy and supratherapeutic doses of digitalis glycosides, beta-blockers and calcium channel blocking agents. Cardiac drugs are also used.
