Heart and Lung Transplants Flashcards
What are the indications for a heart transplant?
end stage heart disease (hemodynamic compromise, CAD, cardiomyopathy, refractory cardiogenic shock)
NYHA Class III-IV despite maximal therapy
Poor quality of life (intractable angina, refractory arrhythmia, VO2 max less than 10mL/kg/min)
Other: congenital heart dx, cardiac tumors
What are the indications for a lung transplant?
COPD
idiopathic pulmonary fibrosis
cystic fibrosis
idiopathic pulmonary arterial hypertension
sarcoidosis
**COPD and idiopathic pulmonary fibrosis and cystic have specific criteria within them to qualify
What are absolute contraindications for heart transplants?
systemic illness with life expectancy less than 2 years
AIDS
Lupus
significant obstructive pulmonary disease
fixed pulmonary hypertension
What are absolute contraindications for lung transplants?
active malignancy w/in past 2 years
continued abuse of alcohol, tobacco or narcotics
HIV
significant chest wall or spinal deformity
Hep B antigen positivity
Hep C with liver disease
untreatable psychiatric condition
absence of support system
What is an alternative to a lung transplant for patients with end-stage pulmonary disease?
lung volume reduction surgery (reduces the size of the lungs in patients with emphysema and decreased lung size help with thoracic distension and chest wall mechanics
How long are lungs and hearts able to last before they have to be transplanted?
6 hours only-> so to be a match, has to be able to get to you within that timeframe
What heart surgical technique is less commonly done but essentially keeps the old heart and adds in the new heart, piggyback technique?
heterotopic heart
What heart transplant technique leaves the recipient node intact and the donor’s SA node operates independently leading to TWO SEPARATE P WAVES on an ECG?
biatrial heart transplant
Which heart transplant surgical technique is more frequently used and has separate caval anastomoses sewn together?
bicaval technique
T/F, lung transplants are transplanted one lung at a time
true, this decreases the need for cardiopulmonary bypass
What are the three stages of immunosuppression?
induction
maintenance therapy
treatment of acute rejection
What are the three main risks of having an organ transplant?
transplant issues
immunosuppression
recurrence of the original disease
Which type of rejection occurs seconds to minutes after transplant due to pre-formed antibodies (ABO/Rh mismatch) which leads to organ death?
hyperacute rejection
Which type of rejection occurs days to years after transplant and is due to cellular and humoral rejection and causes fever and graft tenderness and organ-related issues and is usually reversible?
acute rejection
Which type of rejection occurs months to years after transplant (as early as 3 mo) and is slow progressive organ failure?
chronic rejection