Flashcards in Heart Failure / Cardiac Patho Test 2/2 Deck (23):
Heart failure is the inability of the heart to ______________ and therefore oxygen delivery to peripheral tissues and organs.
Supply adequate blood flow
Under perfusion of organs leads to reduced exercise capacity, fatigue, and shortness of breath. It can also lead __________________(e.g., renal failure) in some patients.
_____________new cases of heart failure each year worldwide
_____________ new cases of heart failure diagnosed each year in the USA
Heart failure is the leading cause of hospitalization of patients over
Once chronic HF is diagnosed: What are the One year mortality figures for the following?
Severe chronic HF =
Moderate chronic HF =
Mild chronic HF =
Severe chronic HF = 50 - 60%
Moderate chronic HF = 15-30%
Mild chronic HF = 10%
HTN, volume loads, hormonal disorders
The number one cause of heart failure is
Another common cause of heart failure is
which is the final and often fatal culmination of CAD.
What percentage of MIs are fatal ?
Causes for acute HF?
Causes for chronic HF where the development is slow and the heart has time to adapt?
Acute effects of moderate HF?
Damming of blood in the veins
Compensation for acute effects of moderate HF?
Sympathetic nervous receptors such as the Baroreceptors are activated by?
Decreased arterial blood pressure
Chemoreceptors are sensitive to what?
Changes on blood chemistry such as CO2, O2, and pH.
Low C.O. has a profound effect on ?
Fluid retention can be beneficial in increasing pressure gradient causing venous flow of blood toward the heart and what else?
Distends the veins, reducing resistance
Left heart failure is the result of what?
Systolic failure = Loss of contractile power
Diastolic failure = loss of ability to relax and fill
Know as restrictive CMP
Loss of ability to move venous blood through the pulmonary circuit
Right HF occurs when the left heart has failed
Left side heart failure signs and symptoms.
Paroxysmal nocturnal dyspnea