Endocarditis easy notes pathophysiology, Study notes of Pathophysiology

Subject -pathophysiology Topic- endocarditis Year-2025-2026 course- pharm D, B pharm, D pharm, MBBS all medical feild. Author- Rohit Kumar Singh

Typology: Study notes

2025/2026

Available from 05/30/2026

rohit-kumar-singh-5
rohit-kumar-singh-5 ๐Ÿ‡ฎ๐Ÿ‡ณ

15 documents

1 / 7

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
ENDOCARDITIS
Introduction of Endocarditis
Endocarditis is a serious infection of the inner lining of the heart called the
endocardium. It usually occurs when bacteria or other microorganisms enter the
bloodstream and attach to the heart valves or damaged heart tissue. This
infection can damage the heart valves and interfere with the normal function of
the heart.
Endocarditis is more common in people who have artificial heart valves, congenital
heart disease, damaged heart valves, or weakened immune systems. The infection
can enter the bloodstream through dental procedures, surgery, injections, or
untreated infections in other parts of the body.
If endocarditis is not treated early, it can lead to serious complications such as
heart valve damage, heart failure, or spread of infection to other organs. Early
diagnosis and proper treatment with antibiotics are important to control the
infection and prevent complications.
pf3
pf4
pf5

Partial preview of the text

Download Endocarditis easy notes pathophysiology and more Study notes Pathophysiology in PDF only on Docsity!

ENDOCARDITIS

Introduction of Endocarditis

Endocarditis is a serious infection of the inner lining of the heart called the endocardium. It usually occurs when bacteria or other microorganisms enter the bloodstream and attach to the heart valves or damaged heart tissue. This infection can damage the heart valves and interfere with the normal function of the heart. Endocarditis is more common in people who have artificial heart valves, congenital heart disease, damaged heart valves, or weakened immune systems. The infection can enter the bloodstream through dental procedures, surgery, injections, or untreated infections in other parts of the body. If endocarditis is not treated early, it can lead to serious complications such as heart valve damage, heart failure, or spread of infection to other organs. Early diagnosis and proper treatment with antibiotics are important to control the infection and prevent complications.

Types of Endocarditis

Endocarditis is mainly classified based on the cause and progression of infection.

  1. Acute Infective Endocarditis This type develops rapidly and is severe. It is usually caused by highly virulent bacteria that quickly damage the heart valves and tissues. Immediate medical treatment is required.

Example: Staphylococcus aureus infection.

  1. Subacute Infective Endocarditis This type develops slowly over weeks or months and the symptoms appear gradually. It is usually caused by less aggressive bacteria.

Example: Streptococcus viridans.

  1. Prosthetic Valve Endocarditis This occurs in people who have artificial (prosthetic) heart valves. The infection develops on the artificial valve surface.
  2. Non-infective Endocarditis This type is not caused by microorganisms. It occurs due to formation of sterile clots on heart valves and may be associated with certain diseases such as autoimmune disorders or cancer.

Signs and Symptoms of Endocarditis

  • Fever and chills
  • Fatigue or weakness
  • Heart murmur (abnormal heart sound)
  • Shortness of breath
  • Congenital heart defects โ€“ Structural heart problems present from birth increase the risk.
  • Intravenous drug use โ€“ Using contaminated needles can introduce microorganisms into the bloodstream.
  • Dental procedures or poor oral hygiene โ€“ Bacteria from the mouth can enter the bloodstream and infect the heart.
  • Medical procedures or surgeries โ€“ Certain procedures involving catheters or instruments may allow microorganisms to enter the blood.

Diagnosis of Endocarditis

  • Medical history and physical examination โ€“ The doctor checks symptoms such as fever, fatigue, and listens to the heart for abnormal heart sounds (heart murmur) using a stethoscope.
  • Blood cultures โ€“ Blood samples are taken to identify the microorganisms (bacteria or fungi) present in the bloodstream.
  • Complete blood test (CBC) โ€“ Helps detect infection and check for increased white blood cells or anemia.
  • Echocardiography โ€“ An ultrasound test of the heart used to detect vegetations, valve damage, or abnormal heart function.
  • Electrocardiogram (ECG) โ€“ Records the electrical activity of the heart to detect abnormalities.
  • Chest X-ray โ€“ Used to check for heart enlargement or complications affecting the lungs.
  • CT scan or MRI โ€“ Sometimes used to detect complications or spread of infection to other organs. Early diagnosis and proper treatment are important to prevent complications such as heart valve damage, heart failure, or spread of infection to other organs.

Treatment of Endocarditis

  • Antibiotics Mechanism: Antibiotics kill bacteria or inhibit their growth by interfering with bacterial cell wall synthesis or protein synthesis. This helps eliminate the bacteria causing infection in the heart lining and valves. Examples: o Penicillin o Vancomycin o Gentamicin
  • Antifungal Drugs Mechanism: Antifungal drugs damage the fungal cell membrane or inhibit ergosterol synthesis, which leads to leakage of cell contents and death of fungal cells. Examples: o Amphotericin B o Fluconazole
  • Antipyretics and Analgesics Mechanism: These drugs inhibit prostaglandin synthesis, which reduces fever and pain associated with infection. Example: o Paracetamol
  1. Supportive Treatment o Manage fever and pain with antipyretics. o Monitor heart function, kidney function, and vital signs.
  2. Monitor Patient Response o Repeat blood cultures to ensure infection is controlled. o Monitor for complications such as heart failure or embolism.
  3. Surgical Intervention (If Needed) o Surgery may be required in cases of severe valve damage, persistent infection, or heart failure. o Procedures include valve repair or valve replacement.
  4. Follow-up and Prevention o Continue antibiotics for 4 โ€“ 6 weeks as prescribed. o Maintain good oral hygiene and regular medical checkups to prevent recurrence.