Basic Course in Pediatric Heart Failure and Heart Transplantation – Niakoro

Basic Course in Pediatric Heart Failure and Heart Transplantation

Basic Course in Pediatric Heart Failure and Heart Transplantation

Course Content

Total learning: 67 lessons / 6 quizzes Time: 8 hours

Graft Rejection

Rejection of transplanted organs is a bigger challenge than the technical expertise required to  perform the surgery.

It results mainly from HLA and  ABO incompatibility.

  • Hyperacute
  • Acute
  • Chronic

Hyper acute rejection

  • Immediate graft destruction due to ABO or preformed anti- HLA antibodies.
  • Characterized by intravenous thrombosis and interstitial hemorrhage.
  • Risk factors are previous failed transplant, surgeries and blood transfusions

Acute rejection

  • Usually occurs during the first 6 months.
  • May be cell mediated (T-cell), antibody mediated or both
  • Characterized by cellular infiltration of the graft(cytotoxic, B- cells, NK cells and macrophages)

Chronic Rejection:

  • It occurs after 6 months.
  • Most common cause of graft failure
  • Antibodies play important role
  • Non- immunological factors contribute to the pathogenesis
  • Characterized by myointimal proliferation in graft arteries leading to ischemia and fibrosis

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