Related Experiment Video
Updated: Mar 27, 2026

Study of Experimental Organ Donation Models for Lung Transplantation
Published on: March 15, 2024
Variability in clinical triggers for organ donation referrals
Kylie Casey1, Elizabeth Thomas2
1Baptist Health System, San Antonio, TX, United States.
Abstract:
In organ transplantation, regulatory efforts have mainly targeted Organ Procurement Organizations (OPOs) and transplant centers, while donor hospitals-crucial to the donation process-have remained under-examined. As the first point of contact for potential donors, these hospitals lack standardized criteria for when and how to refer patients to OPOs, creating variability that can delay referral and reduce organ availability. This viewpoint focuses on clinical triggers: the physiological criteria that prompt hospitals to notify OPOs of potential donors. While CMS requires donor hospitals to maintain written agreements with their designated OPOs and to inform the OPO of deaths and "imminent deaths," there is no national standard defining which bedside clinical criteria should prompt timely notifications; most hospitals defer to their local OPO for guidance. We analyzed clinical triggers from 55 of 56 U.S. OPOs and found marked inconsistency. Glasgow Coma Scale thresholds were used by 69.1%, and brainstem reflexes by 54.6%, with wide variation in both. Fewer than half addressed family discussions, and notification windows ranged from immediate to 240 min. These discrepancies reflect a critical bottleneck in the donor identification process. Standardizing clinical triggers and instituting a referral-based performance metric framework may improve metrics, thereby enhancing early donor identification, reducing missed referral opportunities, enhancing organ recovery, and reducing waitlist mortality. As scrutiny of OPOs and transplant centers increases, improving donor hospital practices is essential to optimizing the transplant system.
Insights
Donor hospitals lack standardized clinical triggers for referring potential organ donors to Organ Procurement Organizations (OPOs). This inconsistency delays referrals and reduces organ availability, highlighting a critical bottleneck in the organ donation process.
Area of Science:
- Organ transplantation
- Medical regulation
- Public health
Background:
- Regulatory efforts in organ transplantation primarily focus on Organ Procurement Organizations (OPOs) and transplant centers.
- Donor hospitals, the initial point of contact for potential donors, are under-examined despite their crucial role.
- Lack of standardized criteria in donor hospitals leads to variability in patient referral to OPOs, potentially delaying organ donation and reducing organ availability.
Purpose of the Study:
- To examine the clinical triggers used by donor hospitals for referring potential organ donors to OPOs.
- To identify inconsistencies in clinical trigger criteria across different OPOs.
- To propose standardization of clinical triggers to improve the organ donation process.
Main Methods:
- Analysis of clinical triggers from 55 of 56 U.S. Organ Procurement Organizations (OPOs).
- Evaluation of criteria such as Glasgow Coma Scale thresholds, brainstem reflexes, family discussion protocols, and notification windows.
Main Results:
- Marked inconsistency found in clinical triggers used by U.S. OPOs.
- Glasgow Coma Scale thresholds were used by 69.1% and brainstem reflexes by 54.6%, with significant variation.
- Notification windows varied widely, from immediate to 240 minutes, and fewer than half of OPOs addressed family discussions.
Conclusions:
- Discrepancies in clinical triggers represent a critical bottleneck in donor identification.
- Standardizing clinical triggers and implementing performance metrics can enhance early donor identification and organ recovery.
- Improving donor hospital practices is essential for optimizing the organ transplant system and reducing waitlist mortality.
Related Concept Videos
Kidney Transplant I: Introduction
Tissue Transplantation
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
Bone Marrow Sampling and Transplants
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy...
Drug toxicity: Idiosyncratic Reactions
Cell-mediated Immune Responses
Dosage Regimen: Individualization

