Kidney Transplantation Flashcards
What are the main types of kidney transplant?
Deceased Heart Beating Donors (Brain stem death)(DBD)
Non-Heart Beating Donors (DCD)
Live Donation (altruistic)
What is the difference between a directed and undirected altruistic donor?
Directed - family member or friend is motivated to donate after someone they know becomes ill
Undirected - anyone off the street comes in to say they wish to donate their kidney
What percentage of kidney function is restored by either haemodialysis or peritoneal dialysis?
7%
Receiving dialysis before a kidney transplant is better than if no dialysis is used. TRUE/FALSE?
FALSE
dialysis has many risks (e.g. CVD) => it is better to not require it at all before a transplant
Why does dialysis predispose to a cardiovascular event?
It stiffens the vasculature
The number of deceased non heart beating donors is increasing. TRUE/FALSE?
TRUE
How many years left of life expectancy must a patient have in order to be suitable for receiving a kidney?
> 5yrs
What factors of a kidney donation surgery should you ensure the receiver is able to tolerate?
- General Anaesthetic
- Surgical Procedure itself
- Immunosupression
- Immediate post-operative period (3 months)
What are the various parts of the recipient assessment?
Immunology – tissue typing etc Virology (to exclude active infection) Assess: - Cardiorespiratory risk - peripheral vessels - bladder function - mental state - co-morbidity/PMHx which may influence transplant OR be exacerbated by immunosuppression
What are some of the contraindications to a transplant?
- Malignancy
- active HCV/HIV infection
- Untreated TB
- Severe Ischaemic Heart OR airways disease
- Active vasculitis
- Severe Peripheral Vasc. Disease (unusable vessels)
- Hostile bladder
What must be checked in the live donor assessment?
Fit for surgery? Enough renal function in remaining kidney? Anatomically normal kidneys? Co-morbidities? Hypertension, Proteinuria, Haematuria? Immunologically compatible? Psychologically compatible? Coming forward without coercion?
What are the two parts of tissue typing?
Blood typing
HLA antigen matching
A badly matched kidney for a patients first transplant indicates that they may have problems with further transplants. TRUE/FALSE?
TRUE
What is meant by paired donation?
It occurs between more than two people to make the best immunological fit for each
How is a patient densensitised?
- Active removal of blood group or donor specific antibody
- plasma exchange
- B cell antibody (rituximab)