Aland R. Fernandez, MD
- interventional cardiology
Location and Office HoursClearwater Cardiovascular & Interventional Consultants
Safety Harbor, FL 34695
- AvMed Health Plan
- BC/BS of Florida/Health Options
- CIGNA HealthCare
- Humana Health Plan
- United Healthcare
- Universal Health Care
- Largo Medical Center
- Mease Countryside Hospital
- Mease Dunedin Hospital
- Morton Plant Hospital
- Sun Coast Hospital
What is diastolic heart failure?
Diastolic heart failure is a condition in which the pumping chambers (ventricles) of the heart become thickened, grow stiff and cannot relax enough to adequately fill the heart’s lower chambers (ventricles) with blood. The fluid then backs up into organs and causes swelling (edema) (especially in feet and ankles) and congestion even though the heart's pumping function (ejection fraction) is normal. This type of heart failure is caused by conditions such as acute ischemia, systolic hypertension with enlargement of the left ventricular muscle, restrictive cardiomyopathy and hypertrophic cardiomyopathy
How do heart birth defects affect the body?
Piedmont Heart Institute answered
Heart birth defects can often stunt growth. Children will often develop later and more slowly. Developmental milestones, such as walking and talking, may be delayed. Children with heart birth defects may need surgery, lifelong medications, or at the very least an awareness of their heart defect to avoid future complications down the line.
How is the sinoatrial node like a spark plug?
Discovery Health answered
The sinoatrial node (SA node) is the heart's natural pacemaker. It is a group of cells that generates electric current. The SA node is in the right atrium.
At a set interval, say about once every second, the SA node sends out an electrical charge. At a rate of once per second, your heart rate would be 60.
A rate of 60 to 80 beats per minute is considered to be healthy. These impulses are the "sparks" that prompt your right atrium to contract, which starts a string of events that gets blood pumping in waves throughout your body.
The SA node is what sets the rhythm of your heart. When you need more blood to pump, such as when you need more oxygen to run a mile or climb a set of stairs, the SA node shortens the interval between electrical charges.
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