·
The first liver
transplant performed by Dr. Thomas Starzl performed the first operation on March 1, 1963, at the
University of Colorado in Denver.
·
In general, all type 1 diabetics who have poorly
controlled diabetes despite optimal medical management should be considered for
K-P
transplantation as long as they are acceptable surgical risks.
·
The first experimental heart-lung transplant: Alexis Carrel, French-born
American surgeon, developed the vascular techniques required for heart-lung
transplantation and performed the first experimental heart-lung transplant in
1907.
The first successful experimental heart-lung transplant:
V.P. Demikhov performed the first successful
heart-lung transplant in a dog in 1962.
The surgical strategy required for human heart
transplantation: Norman Shumway.
The first human heart transplant: C.N. Bernard performed the first human heart
transplant in December, 1967 (in Capetown, South Africa, after visiting Dr.
Shumway), although Dr. Shumway set the stage by developing the technique in
animals. Shumway and the Stanford group performed the first heart transplant in
the United States and accomplished the first successful clinical series.
The first successful heart-lung transplant: Dr. Bruce Reitz at Stanford in 1981 on a 21-year-old
woman with pulmonary hypertension secondary to an atrial septal defect.
·
"Domino heart transplant":
The good heart
from a heart-lung recipient is transplanted into a patient requiring a heart
transplant. Some patients with primary lung dysfunction have secondary
irreversible cardiac dysfunction (i.e., Eisenmenger's syndrome); others,
however, such as patients with cystic fibrosis, have good cardiac function.
Patients with good cardiac function may serve as donors and increase the donor
pool.
·
Although heart transplantation has progressed
more rapidly, the first lung transplant preceded the
first heart transplant.
James Hardy
performed
the first human lung transplant in 1963; however, more than 20 years
passed before lung transplantation was performed routinely in clinical practice
(during that 20 year period, only 1 patient did well enough to leave the
hospital). This delay was caused by initial graft failure secondary to
inadequate organ preservation, long ischemic times, lack of good
immunosuppressive agents, and technical difficulties (primarily with the
bronchial-not the vascular-anastomoses).
Unlike heart transplants,
the diagnosis
of rejection in transplanted lungs is imprecise and based on a collection of
symptoms and signs. Decreased oxygen saturation, fever, decreased
exercise tolerance, and radiologic infiltrate suggest rejection. Sequential
quantitative lung perfusion scans that demonstrate a decrease in perfusion are
helpful in the diagnosis of rejection after single-lung transplants.
Transbronchial biopsy is useful after single- and double-lung transplants.
·
Euro-Collins (EC) solution and University of
Wisconsin (UW)
solution for lung and crystalloid cardioplegia and UW solution for hearts.
EC solution
is a glucose-based solution with an ionic composition that approximates that of
the intracellular environment.
UW solution
does not
contain glucose but does contain the following components not found
in EC solution: hydroxy-ethyl starch
(prevents expansion of the interstitial space), lactobionate
and raffinose (suppress hypothermia-induced
cell swelling), glutathione and allopurinol
(reduce cytotoxic injury from oxygen free radicals), and adenosine (substrate for adenosine triphosphate
formation, vasodilation, and activation of the protective mechanisms of
"protective preconditioning").
Two categories exist: intracellular solutions
characterized by high K+ and low Na such as Bretschneider (HTK), and
extracellular characterized by low to moderate K+ and high Na+ such as St
Thomas's cardioplegia solution.
·
Chimerism
is leukocyte sharing between the graft and the recipient so that the graft
becomes a genetic composite of both donor and recipient.
No comments:
Post a Comment