Rheumatic fever is an inflammatory disease that can occur as a result of a streptococcal infection. It is caused by an autoimmune response where antibodies created to fight the bacterial infection mistakenly attack healthy tissues in the body, especially the heart valves, joints, skin, and brain. Symptoms include heart valve damage, arthritis, abnormal skin rashes, and involuntary movements. Treatment involves antibiotics to prevent recurrent streptococcal infections, anti-inflammatory drugs, and lifelong prophylaxis to prevent future episodes of rheumatic fever.
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Rheumatic Fever: Causes, Symptoms and Treatment
1.
2. OBJECTIVE:
Student will define rheumatic fever and
its causes.
Student will explain its pathophysiology
Relate its sign and symptoms with
pathophysiology
Student will conceptualize diagnostic
measures and management of
rheumatic fever.
Student will explain its complications and
prophylaxis .
3. OVERVIEW:
Rheumatic fever
caused by group-A beta-hemolytic
streptococcus.
It causes strep throat.It is an
inflammatory disorder.
It occurs in children of (6-15 yrs)
Family history of rheumatic fever is +
Initial attack of streptococcus occurs
1-5 weaks after streptococcal infection.
Affects the valves of the heart.
4. There is an autoimmune
response.
Affects connective and
endothelial tissue in
heart,joint,skin as epitopes in
tisues of these areas is similar to
streptococal epitopes.
5. Definition:
Rheumatic fever is an autoimmune
disease that occurs as a sequelae of group A
beta-hemolytic streptococcal infection.It is
characterized by inflammatory lesions of
connective tissue and endothelial tissue
6. ANATOMY OF CONNECTIVE AND ENDOTHELIAL TISSUES:
Endothelial tissue:
It is a thin layer
of
simple squamous
cells called
endothelial cells
It lines entire
circulatory
system from
heart to smallest
capillaries
7. Connective tissue:
It IS a material made
up of fibers forming a
framework
and support structure
for body tissues and
organs.
It surrounds many
organs.
Cartilage and bone
It is found every-
Where in body
8. Etiology:
Underdiagnosed and undertreated strep
throat.
Poor sanitation,poor housing.
Incidence more during winter and early
spring.
Family history of rheumatic fever.
9. PATHOPHYSIOLOGY:
Group-a streptococci
streptococcal pharyngitis
activation of T-cells synthesis of antistrpto-
by streptococcal antigen coccal antibodies by
B-cells
Autoimmune reaction results in cross reactivity between
epitopes of organism and host as epitopes in the cell wall
membrane,A,B,C regions of streptococcal M protein are
immunologically similar to human molecules.
Due to molecular mimicry between groupA streptococcal antigens
10. And host tissues antistreptococcal antibodies and t-cells
reacts with Strep like antigens in heart,joints,valves and
skin neurons and causes inflammation of heart
wall,valves and joints
12. Joints:
painful
feel tender when touched
Warm
Swollen and red
May contain fluid.
Ankles, knees, elbows, and wrists are usually
affected. The shoulders, hips, and small joints of the
hands and feet also may be affected.
Arthralgia.
Fleeting and
fliting pain
Arthritis.
polyarthritis.
13. HEART:
valves are commonly affected
And developes new, larger, or different murmurs.
Mitral valve is most commonly damaged.
Pancarditis
14. CNS:
Jerky, uncontrollable movements,
usually of both arms and legs and
particularly of the face, feet, and
hands, called Sydenham chorea.
Skin:
develops(redness of the skin or mucous
membrane) involving pink
rings Erythema marginatum
.
15. Sign and symptoms:
AS PER JONES CRITERIA:
MAJOR
MANIFESTATIONS
Polyarthritis:tenderness
swelling and pain in many
joints.
18. MINOR MANIFESTATIONS:
A temperature
Of 101°F or above.
Arthralgia:Pain in joint
without inflammation and
tenderness.
19. COMPLICATIONS:
MITRAL STENOSIS:Mitral stenosis is a narrowing
of the mitral valve opening.Due to
inflammation. Mitral stenosis restricts
blood flow from the left atrium to the left
ventricle.
20. MITRAL INSUFFICIENCY:
Mitral insufficiency (MI), mitral regurgitation or mitral
incompetence is a disorderof the heart in which the
mitral valve does not close properly when the heart
pumps out blood. It is the abnormal leaking of blood
Backwards from the left ventricle, through the mitral
valve, into the left atrium,when the left ventricle
contracts
21. COMPLICATIONS:
AORTIC STENOSIS:Aortic stenosis is a narrowing
of the aortic valve .Due to inflammation.
Aortic stenosis restricts blood flow from
the left ventricle to all body parts.
22. AORTIC insufficiency: Aortic insufficiency is
a heart valve disease in which the aortic valve
does not close tightly. This allows blood to flow
from the aorta into the left ventricle.
25. DIAGNOSTIC MEASURES:
by jones criteria
Physical examination-A heart
murmur may
suggest ARF
History Collection-
26. Antistreptolysin O titre (ASOT) – this blood test looks for
evidence of antibodies produced by the immune
system in response to the streptococcal infection
Erythrocyte sedimentation rate (ESR) –
27. C- reactive protein (CRP) – which tests the level of C
reactive protein (CRP) in your blood. CRP is
produced by the liver. If there's more CRP in
the blood than usual, there's inflammation in
the body.
Chest x-ray-To check size of heart
ECG:To check electrical activity of heart.
29. Treatment:
Medical management:
Antibiotics- benzathine penicillin –single dose-IM
or 10day course of oral pencillin v.
Oral erythromycin is given to those who
are allergic to pencillin.
Anti-inflammatory drugs-aspirin 4-6 weaks for
carditis.
Corticosteroids used in severe cases to control
cardiac inflammation.
Neurological agents:Phenobarbital,diazepam to
control chorea.
Complete bed rest during acute phase.
30. NURSING MANAGEMENT:
NURSING ASSESMENT:
Moniter pulse.
Ausultate heart for heart murmurs.
Observe for involuntary movements.
Asses pain level using pain scale.
Asses temperature.
Observe for rash on skin.
Observe joints to check inflammation.
Observe for pale skin.
31. Nursing diagnosis:
Decreased cardiac output realated to carditis.
Pain related to arthritis
Risk for injury related to chorea.
Nursing INTERVENTIONs:
For improving cardiac output:
Monitir BP and intake output.
Explain child family regarding complete bed
rest.(Aproximately 2 weaks).
Observe for pallor skin and cynosis
Reduce physical stress and activities.
Administer medications as prescribed.
32. Relieving pain-
Asses pain level.
Non-pharmacological pain management.
Anti-inflammatory drugs as prescibed.
Administer analgesics.
Give comfortable possitioning.
Protecting child from chorea:
Use side rails
Assist with feeding and other activities.
Avoid unnecessary procedures.
Limit activities.
Administer medications as prescribed.
33. FAMILY EDUCATION:
Teach appropriate administration of all medicines
Instruct additional prophylaxis for endocarditis before
dental procedures and surgery as indicated.
Encourage to keep follow up with health care
Provider
Encourage other family members to be screened for
streptococcus .
Explain child and family need for complete rest
during acute phase (aproximately 2 weeks).
34. PROPHYLAXIS:
prophylaxis of rheumatic fever
For all individuals who have had an initial attack of
rheumatic fever, whether or not they have rheumatic
heart disease is manditory to prevent infection of the
upper respiratory tract by group A streptococci.
Regular intramuscular injection of repository
penicillin (benzathine benzylpenicillin) 1,200,000
units of benzylbenzathine penicillin given every
three weeks to prevent recurrences of rheumatic
fever.
For patients allergic to penicillin, an oral
sulfonamide is recommended . And those who
cannot take penicillin or sulfadiazine, erythromycin
in a dose of 250 mg twice daily may be used.
35. Patient Duration
No carditis/RHD To 18 years and at
least five years
after the last attack
Documented
carditis
At least to 25
years and often
longer
Chronic carditis For life
With artificial
valves
For life
*:
DURATION
The general principles for secondary
prophylaxis are: