cardiac disorder 2 Flashcards
Primarily affect the valves, inflammation of endocardium (lining of heart chambers) by streptococcus and staph aureus
Infective Endocarditis
Risk for Infective Endocarditis
Incidence has decreased with the use of antibiotics, but there has been a resurgence of the problem in intravenous drug abusers
Dental work
Patients with valvular disease also at risk
Pathophysiology Infective Endocarditis
Pathogens, usually bacteria, enter the bloodstream resulting in positive blood cultures
The pathogen accumulates on the heart valves and/or the endocardium and forms vegetations – will calcify
Complications Infective Endocarditis
Heart failure and embolization
s/s Infective Endocarditis
Fever, chills, malaise, fatigue, and weight loss
Chest or abdominal pain; may indicate embolization
Petechiae inside the mouth and on the ankles, feet, and antecubital areas
Osler’s nodes (Pea-size, tender, reddish-purple lesions) on the patient’s fingertips or toes
medical treatment Infective Endocarditits
Antimicrobials, rest, limitation of activities
Prophylactic anticoagulants
Surgery to replace an infected prosthetic valve
Assessment Infective Endocarditis
Review patient’s history for risk factors, recent invasive procedures, pathologic cardiac conditions, and onset of symptoms
Assess for temperature elevation, heart murmur, evidence of HF (cough, peripheral edema), and emboli
interventions Infective Endocarditis
Administer prescribed antibiotics Encourage adequate rest Assess cardiac output & monitor for complications Teach patient about the medications prescribed and any restrictions imposed
Inflammation of the pericardium
May be primary disease or associated with another inflammatory process
pericarditis
caused by viruses, bacteria, fungi, chemotherapy, or Acute MI (Dressler’s syndrome)
Acute pericarditis
caused by tuberculosis, radiation, or metastases Pathophysiology
Chronic pericarditis
Acute pericarditis
inflammatory process increases amount of pericardial fluid and inflammation of the pericardial membranes
Chronic pericarditis
scarring of the pericardium fuses the visceral and parietal pericardia together
Loss of elasticity results from the scarring
Constrictive process prevents adequate ventricular filling
Complications pericarditis
Pericardial effusion or accumulation of fluid in the pericardial space. May lead to cardiac tamponade
Fluid accumulation in
the pericardial sac
Causes compression
Can’t fill properly
Cardiac Tamponade