\n
Transplantation · External scientific evidence

Scientific Evidence Relevant to BHOC & Transplant Oxygen Delivery

This layer tracks transplantation research that helps define testable oxygen-delivery questions across organ preservation, machine perfusion, regional perfusion, viability assessment and ischemia-reperfusion. It is intentionally separate from the historical HBOC / Hemopure publication catalogue.

Evidence boundary: the studies below do not evaluate BHOC unless explicitly stated. Inclusion means the study is scientifically relevant to oxygen-delivery, perfusion or graft-viability questions that may inform future BHOC research.
Layer 1 · Historical / direct oxygen-carrier evidence

HBOC, HBOC-201 & Hemopure transplantation evidence

The established catalogue preserves source-linked records that directly discuss historical oxygen carriers, HBOC-201, Hemopure or closely related perfusion work.

53 recordsHistorical + direct carrier context
Search the historical catalogue →
Layer 2 · Relevant external transplantation science

Evidence that defines the research environment

This separate catalogue follows transplantation studies that do not test BHOC but clarify where oxygen delivery, preservation, perfusion metrics and reperfusion injury can be measured.

5 verified current recordsNot BHOC efficacy evidence
Open data layer →
Current map

By organ and research function

The counts below refer only to the new external evidence layer. They do not alter the 53-record historical HBOC catalogue.

Organ3

Liver

HOPE, NMP, preservation, donor-risk selection and real-world perfusion practice.

Organ1

Kidney

Hypothermic machine perfusion parameters and one-year transplant outcomes.

Organ1

Lung

Thoracoabdominal regional perfusion and DCD lung procurement outcomes.

Research function

Preservation

HOPE versus static cold storage and ischemia-reperfusion-related outcomes.

Research function

Perfusion & viability

NMP/HMP as measurable platforms for organ support, assessment and selection.

Research function

Regional perfusion

NRP/TA-NRP as an organ-procurement and reperfusion physiology context.

Research map

Where oxygen-delivery questions can be tested.

The value of this evidence layer is not to imply BHOC efficacy. It is to identify established transplantation workflows in which oxygen availability, perfusion quality, tissue injury and graft function are measurable.

01Preservation
02Machine / regional perfusion
03Viability & tissue response
04Reperfusion & graft function

Future BHOC research would need its own safety, formulation, dosing, perfusion and graft-outcome evidence. External transplantation studies cannot substitute for that evidence.

September 2026 · Verified external evidence

Current evidence records

Primary DOI and PubMed routes are provided when available. Each record separates the reported finding from its relevance to future BHOC research.

LiverMeta-analysisHOPE vs SCS

Hypothermic Oxygenated Perfusion Versus Static Cold Storage in Liver Transplantation

Population: 8 randomized trials, 984 adult recipients.

Reported signal: HOPE was associated with lower early allograft dysfunction, primary non-function, major complications and biliary complications; one-year graft survival was comparable.

BHOC relevance: establishes a strong oxygenated-preservation context for studying ischemia-reperfusion and graft outcomes.

Boundary: not a BHOC study and does not establish a role for BHOC in perfusion.
KidneyRetrospective cohortHMP

Machine Perfusion Parameters and 1-Year Outcomes in High KDPI Kidney Transplantation

Population: 71 recipients of kidneys with KDPI ≥85.

Reported signal: the prespecified flow/resistance groups did not show statistically significant differences in one-year renal function, graft survival or patient survival.

BHOC relevance: useful for separating machine readouts from endpoints that reflect actual graft function and tissue benefit.

Boundary: single-center observational evidence; not an oxygen-carrier study.
LungOPTN analysisTA-NRP

Early-to-Midterm Outcomes of Lung Transplantation Following Procurement with Thoracoabdominal Regional Perfusion

Population: DCD lung transplantation comparing 1,364 standard rapid recovery and 261 TA-NRP recipients.

Reported signal: one- and three-year survival were comparable; adjusted analysis found lower odds of ECMO use at 72 hours in the TA-NRP group.

BHOC relevance: expands the evidence map into regional perfusion and organ-procurement physiology.

Boundary: retrospective registry evidence; not a BHOC or oxygen-carrier study.
LiverInternational cohortHOPE vs NMP

Real-World Analysis of Hypothermic Oxygenated Perfusion and Normothermic Machine Perfusion

Population: 954 NMP-treated and 1,202 HOPE-treated liver grafts.

Reported signal: real-world HOPE and NMP cohorts were compared with risk adjustment, while substantial donor-risk and practice differences remained important to interpretation.

BHOC relevance: shows how oxygenated perfusion strategies are selected and evaluated in contemporary practice.

Boundary: non-randomized real-world comparison; not BHOC evidence.
LiverMulticenter registryNMP

Real-World Use of Normothermic Machine Perfusion in Liver Transplantation

Population: 545 NMP liver transplants across nine U.S. centers.

Reported signal: NMP was used across diverse donor and logistical settings; 90-day death-censored graft failure was reported at 1.7%.

BHOC relevance: relevant to deployment, perfusion logistics, viability assessment and endpoint selection.

Boundary: descriptive registry evidence without a randomized control group; not BHOC evidence.
Next evidence directions

What belongs here next

This layer should expand only when a source adds a meaningful transplant oxygen-delivery question: perfusate oxygen-carrying capacity, tissue oxygenation, mitochondrial or microvascular response, viability metrics, ischemia-reperfusion injury, delayed graft function, post-reperfusion syndrome, or organ-specific oxygen demand.

Heart and additional organ directions remain open for future verified evidence. Records should be added by source, not to fill a quota.

Separation rule: Historical/direct HBOC evidence stays in Transplant-publications.json. External transplantation science relevant to future BHOC research stays in Transplant-relevant-evidence.json.