Extended Criteria Donors
Extended Criteria Donors - Related Videos
12:49
Porcine Liver Transplantation Without Veno-Venous Bypass As an Extended Criteria Donor Model
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Cited by 2 •
2022
In this protocol, a model of porcine orthotopic liver transplantation after static cold storage of donor organs for 20 h without the use of a veno-venous bypass during engraftment is described. The approach uses a simplified surgical technique with minimization of the anhepatic phase and sophisticated volume and vasopressor management.
01:28
Criteria for Causality: Bradford Hill Criteria - II
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2025
The Bradford Hill criteria serve as guidelines for establishing causative links in epidemiological research. Beyond Strength, Consistency, Specificity, and Temporality, key criteria also include Biological Gradient, Plausibility, Coherence, Experiment, and Analogy. These principles assist scientists in assessing the likelihood of causation in complex biological contexts. Below is a summary of these concepts: Biological Gradient: Also known as the dose-response relationship, this criterion...
01:30
Criteria for Causality: Bradford Hill Criteria - I
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2025
The Bradford Hill criteria are a group of principles that provide a framework to determine a causal relationship between a specific factor and a disease. There are nine criteria that are pivotal in assessing causality in epidemiological studies. Here's a closer look at Strength, Consistency, Specificity, and Temporality criteria with definitions and examples: Strength: This criterion refers to the size of the association between the factor and the outcome. A strong association suggests a...
07:17
Single Port Donor Nephrectomy
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Cited by 5 •
2011
Single port laparoscopic surgery is changing the standard of care in surgical care like nothing since the laparoscopic technique was introduced 20 years ago. We present out technique of single port donor nephrectomy using the Gelpoint device. We have successfully performed this surgery in 100 patients.
08:37
Corneal Donor Tissue Preparation for Endothelial Keratoplasty
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Cited by 31 •
2012
Endothelial corneal transplantation is a surgical technique for treatment of posterior corneal diseases. Mechanical microkeratome dissection to prepare tissue results in thinner, more symmetric grafts with less endothelial cell loss and improved outcomes. Dissections can be performed at the eye bank prior to corneal transplantation surgery.
FAQs
Assessment combines donor characteristics, medical history, physiological condition, and the observed quality of the organ. Teams then estimate the likelihood of graft dysfunction or other complications and compare that risk with the recipient’s urgency and expected benefit. This integrated evaluation supports individualized decisions rather than relying on a single donor feature.
Accepting an organ with higher associated risk can expand the available donor pool and reduce waiting times, but it may also increase the possibility of poorer transplant outcomes. Clinicians therefore weigh potential graft dysfunction or complications against the recipient’s need for transplantation. The decision is justified when the expected benefit outweighs the additional risk.
The distinction affects how carefully donor and organ factors are interpreted before acceptance. Compared with standard-criteria cases, extended-criteria decisions place greater emphasis on estimating organ quality, possible graft dysfunction, and recipient-specific urgency. This does not automatically exclude an organ; instead, it prompts a more individualized assessment of risk and expected benefit.
Organ quality helps determine whether the potential risks associated with the donor are acceptable for a particular recipient. Teams consider quality alongside donor characteristics and physiological condition, then relate those findings to the likelihood of graft dysfunction or complications. This approach supports recipient matching and helps identify situations in which transplantation remains a reasonable option.
The process begins with reviewing donor characteristics, medical history, physiological condition, and organ quality. Clinicians estimate possible graft dysfunction or complications, compare those risks with recipient urgency and likely benefit, and use the combined evaluation to guide acceptance and matching. After transplantation, preservation, monitoring, and follow-up provide additional information about organ performance and outcomes.
Clinicians may consider such an organ when the potential benefit of transplantation outweighs the added risk, especially when reducing waiting time is important. The decision depends on the relationship between organ quality, estimated complications, and the recipient’s urgency. Extended-criteria donation can therefore provide an option when a broader donor pool may improve access to transplantation.
Careful preservation, monitoring, and follow-up help clinicians evaluate how organs perform after transplantation and identify outcomes associated with donor risk. These observations can reveal whether selection and matching decisions achieved an acceptable balance between benefit and complications. Over time, outcome assessment helps transplant teams refine donor-selection strategies and improve the use of available organs.