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See all 8 Highlighted Expert Reviews articles matching your criteria
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  • Quick BL
  • Chung M
  • Morrow E
  • Reynolds-Tylus T
J Health Commun. 2024 Mar 3;29(3):200-210 doi: 10.1080/10810730.2024.2313988.

Concerns related to bodily integrity, medical mistrust, superstition, and disgust with respect to organ transplantation remain commonly cited barriers among African American, Caucasian, and Hispanic non-donors. The current study examined two narrative strategies for mitigating these barriers by eliciting feelings of happiness or sadness. African American, Caucasian, and Hispanic non-donors (N = 576) were randomly assigned to a radio ad that communicated either a recipient narrative or a waiting list narrative. As expected, the recipient narrative elicited greater feelings of happiness whereas the waiting list narrative aroused greater feelings of sadness. Moderated mediation analyses revealed models in which happiness, not sadness, was the mediator, such that the narrative frame was associated with ad persuasiveness. Additionally, only medical mistrust interacted with happiness to predict ad persuasiveness The results are discussed with an emphasis on message design strategies to employ among reluctant adult African American, Caucasian, and Hispanic potential donors.

  • Westphal GA
  • Robinson CC
  • Giordani NE
  • Teixeira C
  • Rohden AI
  • et al.
JAMA Netw Open. 2023 Dec 1;6(12):e2346901 doi: 10.1001/jamanetworkopen.2023.46901.
CET Conclusion
Reviewer: Mr Keno Mentor, Centre for Evidence in Transplantation, Nuffield Department of Surgical Sciences University of Oxford
Conclusion: Potential brain-dead organ donors are frequently lost to cardiac arrest prior to organ retrieval. This unblinded randomised trial investigated the efficacy of employing an ICU-based checklist to optimise donor physiology to reduce the rate of donor loss. The checklist included various aspects of critical care management and was randomised to 743 patients (vs. 792 controls). Although there was a numerical improvement in the intervention group, there was no significant difference in rate of donor loss between the two groups. There are several important confounders that are not controlled for in this trial, but the most important limitation is due to the lack of blinding. ICU units in the control arm could have improved their practice in response to being included in such a trial, negating any potential effect due to the intervention.
Aims: This study aimed to investigate the whether an evidence-based, goal-directed checklist was effective in delaying cardiac arrest in brain-dead potential donors in the intensive care unit (ICU).
Interventions: At cluster level, eligible hospitals were randomised to provide either checklist guidance or usual care. At individual level, potential organ donors were randomised to receive either checklist guidance or usual care.
Participants: At cluster level, hospitals with a mean number of ≥ 10 brain-dead potential donors annually over the previous 2 years were eligible. At individual level, brain dead organ donors in the ICU (aged 14 to 90 years) were enrolled.
Outcomes: The primary endpoint was the loss of brain-dead potential donors to cardiac arrest. The secondary endpoints included the conversion of brain-dead potential donors to actual organ donors and the number of solid organs recovered per actual organ donor.
Follow Up: 14 days or until transfer from the ICU to the operating room
IMPORTANCE:

The effectiveness of goal-directed care to reduce loss of brain-dead potential donors to cardiac arrest is unclear.

OBJECTIVE:

To evaluate the effectiveness of an evidence-based, goal-directed checklist in the clinical management of brain-dead potential donors in the intensive care unit (ICU).

DESIGN, SETTING, AND PARTICIPANTS:

The Donation Network to Optimize Organ Recovery Study (DONORS) was an open-label, parallel-group cluster randomized clinical trial in Brazil. Enrollment and follow-up were conducted from June 20, 2017, to November 30, 2019. Hospital ICUs that reported 10 or more brain deaths in the previous 2 years were included. Consecutive brain-dead potential donors in the ICU aged 14 to 90 years with a condition consistent with brain death after the first clinical examination were enrolled. Participants were randomized to either the intervention group or the control group. The intention-to-treat data analysis was conducted from June 15 to August 30, 2020.

INTERVENTIONS:

Hospital staff in the intervention group were instructed to administer to brain-dead potential donors in the intervention group an evidence-based checklist with 13 clinical goals and 14 corresponding actions to guide care, every 6 hours, from study enrollment to organ retrieval. The control group provided or received usual care.

MAIN OUTCOMES AND MEASURES:

The primary outcome was loss of brain-dead potential donors to cardiac arrest at the individual level. A prespecified sensitivity analysis assessed the effect of adherence to the checklist in the intervention group.

RESULTS:

Among the 1771 brain-dead potential donors screened in 63 hospitals, 1535 were included. These patients included 673 males (59.2%) and had a median (IQR) age of 51 (36.3-62.0) years. The main cause of brain injury was stroke (877 [57.1%]), followed by trauma (485 [31.6%]). Of the 63 hospitals, 31 (49.2%) were assigned to the intervention group (743 [48.4%] brain-dead potential donors) and 32 (50.8%) to the control group (792 [51.6%] brain-dead potential donors). Seventy potential donors (9.4%) at intervention hospitals and 117 (14.8%) at control hospitals met the primary outcome (risk ratio [RR], 0.70; 95% CI, 0.46-1.08; P = .11). The primary outcome rate was lower in those with adherence higher than 79.0% than in the control group (5.3% vs 14.8%; RR, 0.41; 95% CI, 0.22-0.78; P = .006).

CONCLUSIONS AND RELEVANCE:

This cluster randomized clinical trial was inconclusive in determining whether the overall use of an evidence-based, goal-directed checklist reduced brain-dead potential donor loss to cardiac arrest. The findings suggest that use of such a checklist has limited effectiveness without adherence to the actions recommended in this checklist.

TRIAL REGISTRATION:

ClinicalTrials.gov Identifier: NCT03179020.

  • Custódio G
  • Massutti AM
  • da Igreja MR
  • Lemos NE
  • Crispim D
  • et al.
Liver Transpl. 2023 Nov 9; doi: 10.1097/LVT.0000000000000298.
CET Conclusion
Reviewer: Mr John Fallon, Centre for Evidence in Transplantation, Nuffield Department of Surgical Sciences University of Oxford
Conclusion: This modest sized double-blinded, placebo-controlled RCT was robustly designed, with sound methodology, and demonstrated liraglutide treatment to the donor reduced circulating IL-6 and prevented increase in IL-10. While IL-6 is a pro-inflammatory cytokine which induces the expression of various transcription factors related to inflammation, in this study its reduction in the donor did not translate into any altered gene expression within the liver tissue. They also found no significant differences in their other inflammatory cytokines. In terms of correlation with outcome, the study was severely limited by the number transplanted in their own centre, resulting in a small cohort of recipients they were able to follow-up, they do not specifically report the rates of EAD, however on looking at the results, by Olthoff criteria the rates of EAD, were low and comparable. While the trial is not groundbreaking it is mechanistically interesting with the effects of the GLP-1 agonist measurable within the donors. It is also ethically interesting considering little research is done in donors currently, which could be a valuable window of opportunity to deliver therapies to improve organ outcomes.
Aims: To assess if delivery of liraglutide to brainstem death donors reduced donor inflammation prior to organ donations with correlation to liver transplant outcomes.
Interventions: The intervention group donors received 3mg of liraglutide subcutaneously (0.5mL) at the point of randomisation and then every 6 hours until donation. The placebo group received 0.5mL of normal saline.
Participants: 50 adult DBD donors, of which 12 livers went on to be transplanted in the study centre.
Outcomes: The primary outcome measure was IL-6 levels in the donor prior to first dose and immediately prior to retrieval. The secondary outcomes were donor plasma levels of IL-1β, IL-10, IFN-γ, TNF and BCL-2. Assessment of liver tissue for inflammation related gene expression and immunohistochemistry. The exploratory outcomes were the utilisation rate of the livers and early allograft dysfunction in the livers transplanted in the study centre.
Follow Up: The organ donation period

Brain death triggers an inflammatory cascade that damages organs before procurement, adversely affecting the quality of grafts. This randomized clinical trial aimed to compare the efficacy of liraglutide compared to placebo in attenuating brain death-induced inflammation, endoplasmic reticulum stress, and oxidative stress. We conducted a double-blinded, placebo-controlled, randomized clinical trial with brain-dead donors. Fifty brain-dead donors were randomized to receive subcutaneous liraglutide or placebo. The primary outcome was the reduction in IL-6 plasma levels. Secondary outcomes were changes in other plasma pro-inflammatory (IL-1β, interferon-γ, TNF) and anti-inflammatory cytokines (IL-10), expression of antiapoptotic ( BCL2 ), endoplasmic reticulum stress markers ( DDIT3/CHOP , HSPA5/BIP ), and antioxidant ( superoxide dismutase 2 , uncoupling protein 2 ) genes, and expression TNF, DDIT3, and superoxide dismutase 2 proteins in liver biopsies. The liraglutide group showed lower cytokine levels compared to the placebo group during follow-up: Δ IL-6 (-28 [-182, 135] vs. 32 [-10.6, 70.7] pg/mL; p = 0.041) and Δ IL-10 (-0.01 [-2.2, 1.5] vs. 1.9 [-0.2, 6.1] pg/mL; p = 0.042), respectively. The administration of liraglutide did not significantly alter the expression of inflammatory, antiapoptotic, endoplasmic reticulum stress, or antioxidant genes in the liver tissue. Similar to gene expression, expressions of proteins in the liver were not affected by the administration of liraglutide. Treatment with liraglutide did not increase the organ recovery rate [OR = 1.2 (95% CI: 0.2-8.6), p = 0.82]. Liraglutide administration reduced IL-6 and prevented the increase of IL-10 plasma levels in brain-dead donors without affecting the expression of genes and proteins related to inflammation, apoptosis, endoplasmic reticulum stress, or oxidative stress.

  • Pekmezaris R
  • Cigaran E
  • Patel V
  • Clement D
  • Sardo Molmenti CL
  • et al.
World J Transplant. 2023 Jun 18;13(4):190-200 doi: 10.5500/wjt.v13.i4.190.
CET Conclusion
Reviewer: Mr Simon Knight, Centre for Evidence in Transplantation, Nuffield Department of Surgical Sciences University of Oxford
Conclusion: This randomised study from New York recruited adult Hispanic residents and delivered an online survey to elicit their knowledge and views on organ donation. Participants were randomised to watch an emotive video on deceased donation either before answering the survey, or after. The authors found that participants who watched the video before answering the survey showed more willingness to register as a donor (OR 2.05) and greater awareness as to how to sign up. The study is well designed and interesting, demonstrating how simple information provision may impact donation decisions in diverse populations. It is worth noting that the study did not measure actual registrations, just intent, and future studies should look at impact on actual registration rates as a closer proxy to real-world benefit.
Aims: The aim of this study was to evaluate whether an educational video was effective in improving organ donation intent among Hispanic New York residents.
Interventions: Participants were randomised to either view a short educational video on organ donation prior to the survey or to view the same video following the survey.
Participants: 365 Hispanic New York City (NYC) residents.
Outcomes: The main outcomes of interest were to assess the impact of the emotional video on willingness to donate, and to identify driving factors for organ donation.
Follow Up: N/A
BACKGROUND:

The Hispanic community has a high demand for organ donation but a shortage of donors. Studies investigating factors that could promote or hinder organ donation have examined emotional video interventions. Factors acting as barriers to organ donation registration have been classified as: (1) Bodily integrity; (2) medical mistrust; (3) "ick"-feelings of disgust towards organ donation; and (4) "jinx"-fear that registration may result in one dying due to premeditated plans. We predict that by providing necessary information and education about the donation process via a short video, individuals will be more willing to register as organ donors.

AIM:

To determine perceptions and attitudes regarding barriers and facilitators to organ donation intention among Hispanic residents in the New York metro politan area.

METHODS:

This study was approved by the Institutional Review Board at Northwell Health. The approval reference number is No. 19-0009 (as presented in Supplementary material). Eligible participants included Hispanic New York City (NYC) residents, 18 years of age and above, who were recruited voluntarily through Cloud Research and participated in a larger randomized survey study of NYC residents. The survey an 85-item Redcap survey measured participant demographics, attitudes, and knowledge of organ donation as well as the intention to register as an organ donor. Attention checks were implemented throughout the survey, and responses were excluded for those who did fail. Participants were randomly assigned two-between subject conditions: To view a short video on organ donation and then proceed to complete the survey (i.e., video first) and view the same video at the end of the survey (video last). No intra-group activities were conducted. This study utilized an evidenced-based emotive educational intervention (video) which was previously utilized and was shown to increase organ donation registration rates at the Ohio Department of Motor Vehicles. Results were analyzed using Jamovi statistical software. Three hundred sixty-five Hispanic individuals were included in the analysis. Once consent was obtained and participants entered the survey (the survey sample is presented in Supplementary material), participants were asked to report on demographic variables and their general impression of organ donation after death. The video depicted stories regarding organ donation after death from various viewpoints, including from the loved ones of a deceased person who died waiting for a transplant; from the loved ones of a deceased person whose organs were donated upon death; and, from those who were currently waiting for a transplant.

RESULTS:

Using a binomial logistic regression, the analysis provides information about the relationship between the effects of an emotive video and the intention to donate among Hispanic participants who were not already registered as donors. The willingness to go back and register was found to be significantly more probable for those who watched the emotive video before being asked about their organ donation opinions (odds ratio: 2.05, 95% confidence interval: 1.06-3.97). Motivations for participation in organ donation were also captured with many stating the importance of messages coming from "people like me" and a message that highlights "the welfare of those in need". Overall, the findings suggest that using an emotive video that addresses organ donation barriers to prompt organ donation intentions can be effective among the Hispanic populous. Future studies should explore using targeted messaging that resonates with specific cultural groups, highlighting the welfare of others.

CONCLUSION:

This study suggests that an emotive educational intervention is likely to be effective in improving organ donation registration intent among the Hispanic population residing in NYC.

  • Bas-Sarmiento P
  • Coronil-Espinosa S
  • Poza-Méndez M
  • Fernández-Gutiérrez M
Nurse Educ Pract. 2023 Mar;68:103596 doi: 10.1016/j.nepr.2023.103596.
AIM:

To develop and evaluate an educational programme aimed at undergraduate training to increase and improve knowledge, attitudes and behaviour towards the organ and tissue donation and transplants (OTDT).

BACKGROUND:

The request for OTDT falls on the health personnel and the reduction of family refusals depends on their attitude and competence, which is vital to increase OTDT. The evidence highlights the efficacy of starting training at early stages and the implementation of educational programmes in universities is recommended to reduce family refusals.

DESIGN:

A randomised controlled trial.

METHODS:

A randomised controlled trial with an experimental group (EG) -theory class and round table- and a control group (CG) -theory class- that transitions to a delayed experimental group. A sample of 73 students was distributed in parallel randomised groups.

RESULTS:

The groups increased their knowledge and improved their attitude, significantly changing their behaviour in the follow-up. These changes in the experimental groups were more significant than in CG in perceived quality of information (z = -4.948; p = <0.001), level of knowledge (EG1 and CG z = -2.245; p = 0.025) (EG2 and CG z = -2.215; p = 0.027), attitude (EG1 and CG z = -2.687; p = 0.007) (EG2 and CG z = -2.198; p = 0.028) and behaviour (EG1 and CG t = 2.054; p = 0.044) (EG2 and CG z = -2.797; p = 0.005).

CONCLUSIONS:

The education programme has proven effective, promoting knowledge, change and entrenchment of attitudes, facilitating conversations with families, enabling willingness to donate and increasing potential donors.

  • Vendetti ML
  • Esther Moon SJ
  • Imes CC
  • Hergenroeder A
  • Sciurba F
  • et al.
Contemp Clin Trials Commun. 2023 Feb 28;33:101097 doi: 10.1016/j.conctc.2023.101097.
BACKGROUND:

Lung transplantation is an established treatment option for persons with advanced lung disease. After transplantation, lung function typically returns to near normal levels, however exercise capacity remains low due to chronic deconditioning, limited physical function, and inactive lifestyles which undermine the intended benefits of the highly selective, resource-intensive transplant procedure. Pulmonary rehabilitation is recommended to improve fitness and activity tolerance, however due to multiple barriers, lung transplant recipients either never participate, or fail to complete, pulmonary rehabilitation programs.

PURPOSE:

To describe the design of Lung Transplant Go (LTGO), a trial modified for the remote environment based on recommendations to preserve trial integrity during COVID. The aims are to evaluate a behavioral exercise intervention to improve physical function, physical activity, and blood pressure control in lung transplant recipients conducted safely and effectively using a telerehabilitation (telerehab) platform, and to explore the role of potential mediators and moderators of the relationship between LTGO and outcomes.

METHODS:

Single-site, 2-group randomized controlled trial with lung transplant recipients randomized 1:1 to either the LTGO intervention (a 2-phased, supervised, telerehab behavioral exercise program), or to enhanced usual care (activity tracking and monthly newsletters). All study activities, including intervention delivery, recruitment, consenting, assessment, and data collection, will be performed remotely.

CONCLUSION:

If efficacious, this fully scalable and replicable telerehab intervention could be efficiently translated to reach large numbers of lung recipients to improve and sustain self-management of exercise habits by overcoming barriers to participation in existing, in-person pulmonary rehabilitation programs.

  • Shepherd L
  • O'Carroll RE
  • Ferguson E
Soc Sci Med. 2023 Jan;317:115545 doi: 10.1016/j.socscimed.2022.115545.
CET Conclusion
Reviewer: Reshma Rana Magar, Centre for Evidence in Transplantation, Nuffield Department of Surgical Sciences University of Oxford
Conclusion: This study aimed to establish whether factors such as anticipated regret, the deceased wishes and next-of-kin attitudes could predict next-of-kin approval for organ donation, and to develop a model of next-of-kin decision making regarding organ donation in Wales, UK, which has an opt-out system. A total of 808 participants were randomly assigned to imagine whether a deceased relative had either opted-in, opted-out or had not registered a decision (deemed consent). The authors concluded that anticipated regret significantly influenced the next-of-kin approval for organ donation, and also that if the next-of kin had negative beliefs towards organ donation, they were less likely to follow the deceased wishes to donate. It is possible that the participants may have underestimated the influence of their emotions on future decision-making process; thus, how they believed they would act may be different from how they behave in real life. The authors do a good job of acknowledging this. However, the study did not assess ethnicity or religion, both of which have been found to affect the decision of the next-of-kin on organ donation. These could have acted as potential confounders in the analyses. Perhaps another factor the authors could have also considered is the type of relationship between the deceased donor and the next-of-kin. It would have been interesting to see if relatives with negative attitude towards organ donation were able to override their beliefs and follow the deceased donor’s wishes to donate if the deceased donor was an authority figure or a final decision maker when alive. For example, in cultures where fathers are the main decision makers, there may be a higher chance of sons/daughters respecting their deceased father’s wishes to donate despite their negative affective attitudes, in comparison to fathers respecting their deceased children’s wishes.
Aims: This study aimed to investigate how the deceased donor’s wishes, negative affective attitudes, perceived benefits and anticipated regret had an effect on the next-of-kin’s approval of organ donation under opt-out legislation.
Interventions: Participants were randomised to imagine if their deceased relative had either opted in, opted-out or not registered a decision (deemed consent).
Participants: Adults (≥18 years) living in Wales.
Outcomes: The outcome variables of interest included previous health-based philanthropy, uncertainty, anticipated regret, intention of next-of-kin to approve donation of organs, negative affective attitudes and perceived benefits.
Follow Up: Not reported
RATIONALE:

Family, and sometimes longstanding friends, have considerable influence over organ donation, through agreeing or disagreeing to the donation of a deceased individual's organs. To date, most research has been undertaken within opt-in systems.

OBJECTIVE:

This study advances on previous research by assessing next-of-kin approval under opt-out legislation. We tested whether next-of-kin approval varies when the deceased is a registered donor (opted-in), registered non-donor (opted-out) or has not registered a decision under an opt-out policy (deemed consent). We also tested if the deceased's wishes influenced next-of-kin approval through relatives anticipating regret for not donating and feelings of uncertainty. Finally, we assessed whether next-of-kin's own beliefs about organ donation influenced whether they followed the deceased's wishes.

METHODS:

Participants (N = 848) living in a country with opt-out legislation (Wales, UK) were asked to imagine a relative had died under an opt-out system and decided if their relatives' organs should be donated. Participants were randomly allocated to imagine the deceased had either (i) opted-in, (ii) opted-out or (iii) not registered a decision (deemed consent). The outcome variable was next-of-kin approval, with uncertainty and anticipated regret as potential mediators and next-of-kin's beliefs about organ donation as moderators.

RESULTS:

Next-of-kin approval was lower when the deceased had opted-out than under deemed consent. This was due to next-of-kin anticipating more regret for not donating under deemed consent than opt-out. Further analyses revealed the deceased's wishes influence next-of-kin approval, via anticipated regret, when next-of-kin did not hold negative beliefs about organ donation.

CONCLUSIONS:

The deceased's wishes were less likely to be followed when next-of-kin had negative beliefs towards donation. Developing large-scale campaigns to improve these beliefs in the general public should make people more likely to follow the deceased's wishes. As a result, these campaigns should improve the availability of donor organs.

  • Siegel JT
  • McManus MD
  • Blazek DR
  • Marshburn A
Soc Sci Med. 2023 Jan;317:115544 doi: 10.1016/j.socscimed.2022.115544.

The current research investigated two rarely used appeals for increasing organ donor registration-both with the potential to backfire. The three-in-1000 appeal explains that less than one percent of people will die in such a way that their organs can be donated. This appeal could heighten awareness that donor registration is needed, but it can also convey that registering is futile. The dynamic norms appeal emphasizes the increasing number of people who are becoming registered donors. This appeal could increase the perceived normative nature of registration, but doing so can also lead potential donors to conclude that enough people are already registered. In Studies 1 and 2, participants recruited from Amazon's Mechanical Turk were randomly assigned to either one of these appeals, and their attitudes toward donor registration and intentions to register as a donor were compared to participants in a no-message control group. Study 2 included a qualitative component where participants were asked to describe their perceptions as to why the message was or was not influential. In both experiments, intentions to register were higher for those in both messaging conditions compared to the control group. Positive attitudes toward organ donation were higher in the three-in-1000 condition compared to the control group for both studies. Those in the dynamic norms condition reported more positive attitudes than the control group in Study 1, but not Study 2. In both studies, there was scant evidence of the messages backfiring. In the qualitative component of Study 2, self-reported reasons for the influence of each method provided insight into how and why these appeals were influential, and indicated signs of underdetection for the dynamic norms message.

  • Yeung NCY
  • Lau JTF
  • Wu AMS
  • Mo PKH
  • Jiang CL
  • et al.
Hong Kong Med J. 2022 Dec;28 Suppl 6(6):36-38.
  • Niikawa H
  • Okamoto T
  • Ayyat KS
  • Itoda Y
  • Sakanoue I
  • et al.
Artif Organs. 2022 Nov;46(11):2226-2233 doi: 10.1111/aor.14328.
CET Conclusion
Reviewer: Mr Simon Knight, Centre for Evidence in Transplantation, Nuffield Department of Surgical Sciences University of Oxford
Conclusion: The small experimental study randomised 10 double-lung blocks declined for transplant to either prone ex-vivo perfusion (EVLP) or supine EVLP. EVLP was continued for 2 hours, following which lung function, compliance and weight were assessed ex-vivo. The authors report that function was improved, and weight lower, in the prone group, with 3/5 lung blocks deemed suitable for transplant compared to none in the supine group. These findings are very interesting, but there are of course some limitations. Declined organs are likely to have different characteristics and a greater degree of variability in quality than those utilised for transplant, and in such a small sample there is the possibility of a type 1 error. As none of the lungs were transplanted, it is not clear whether the improvement in ex-vivo assessment would translate to improved clinical outcomes. However, the results do support further evaluation of prone EVLP in clinical studies of lungs intended for transplantation.
Aims: This study aimed to assess whether prone positioning during EVLP was advantageous in human donor lungs declined for clinical transplant.
Interventions: Human double lung blocs were randomly assigned to either prone ex vivo lung perfusion (EVLP) or supine EVLP.
Participants: 10 human double lung blocs rejected for clinical transplant.
Outcomes: Lung function, compliance, weight and transplant suitability.
Follow Up: Following 2 hours of EVLP.
BACKGROUND:

We previously reported beneficial effects of prone positioning during ex vivo lung perfusion (EVLP) using porcine lungs. In this study, we sought to determine if prone positioning during EVLP was beneficial in human donor lungs rejected for clinical use.

METHODS:

Human double lung blocs were randomized to prone EVLP (n = 5) or supine EVLP (n = 5). Following 16 h of cold storage at 4°C and 2 h of cellular EVLP in either the prone or supine position. Lung function, compliance, and weight were evaluated and transplant suitability determined after 2 h of EVLP.

RESULTS:

Human lungs treated with prone EVLP had significantly higher partial pressure of oxygen/fraction of inspired oxygen (P/F) ratio [348 (291-402) vs. 199 (191-257) mm Hg, p = 0.022] and significantly lower lung weight [926(864-1078) vs. 1277(1029-1483) g, p = 0.037] after EVLP. 3/5 cases in the prone group were judged suitable for transplant after EVLP, while 0/5 cases in the supine group were suitable. When function of upper vs. lower lobes was evaluated, prone EVLP lungs showed similar P/F ratios and inflammatory cytokine levels in lower vs. upper lobes. In contrast, supine EVLP lungs showed significantly lower P/F ratios [68(59-150) vs. 467(407-515) mm Hg, p = 0.012] and higher tissue tumor necrosis factor alpha levels [100.5 (46.9-108.3) vs. 39.9 (17.0-61.0) ng/ml, p = 0.036] in lower vs. upper lobes.

CONCLUSIONS:

Prone lung positioning during EVLP may optimize the outcome of EVLP in human donor lungs, possibly by improving lower lobe function.