Organ Transplantation in France

French People's Views on the Allocation of Organs for Transplantation

BACKGROUND

French laypeople's views on the allocation of organs for transplantation were examined.

METHODS

A total of 199 adults make judgments of priority for a liver transplant in 48 realistic scenarios composed of all combinations of 4 factors: 1. probability of success, 2. life expectancy without transplant, 3. level of responsibility for liver failure (eg, substance abuse in the past), and 4. social situation (eg, young mother with 2 young children). In all scenarios, the patients were in need of liver transplant. The ratings were subjected to cluster analysis and analyses of variance.

RESULTS

Six qualitatively different positions were found that were termed Probability of Success and Life Expectancy (6%), Family Responsibilities (8%), Family Responsibilities and Risky Behavior (28%), Risky Behavior and Family Responsibilities (22%), Risky Behavior (11%), and Always a Priority (25%). Regular church attendees expressed more often the Risky Behavior and Family Responsibilities position and less often the Always a Priority position than atheists. Female participants expressed more often the Risky Behavior position than male participants.

CONCLUSIONS

The French laypeople in our sample think that when assessing priority for transplant, criteria additional to medical urgency or the estimated utility in terms of expected life span after transplant should be taken into account. These criteria are the patient's lack of responsibility for the liver failure (ie, not causing it by drinking or using drugs) and the extent of the patient's social responsibilities (with active employment and dependents to care for).

Organ Donation in Intensive Care Units of Hospitals in Warsaw

BACKGROUND

In recent years a systematic decrease in donation activity in Poland (15.4 vs 13.0) has been observed. A significant reduction has been noticed in Warsaw (36.2 vs 19.2) as well.

METHODS

Data on deaths of patients admitted to intensive care units (ICUs) of Warsaw hospitals in from 2014 to 2018 were analyzed. Analysis was conducted in compliance with the Helsinki Congress and the Istanbul Declaration. Population of the city during this period averaged 1,753,480, although specialized capital hospitals service substantially bigger area than Warsaw alone. There are 18,500 to 18,600 deaths affecting this population every year. A total of 333 patients diagnosed as having brain death were included in analysis.

RESULTS

In 42 cases (12.7%) data collection was given up because of lack of authorization. In all donors, death was diagnosed according to neurologic criteria. The most common causes were vascular brain diseases (64.1%) and craniocerebral trauma (21.4%). In 14.5% brain death occurred from other reasons. There are 20 hospitals with ICUs in Warsaw, which totals 318 intensive care beds. Program of identification of deceased organ donors was active in only 14 hospitals. A total of 243 potential donors (73%) were identified in the 3 most active hospitals.

CONCLUSION

Analysis of ICU deaths of Warsaw hospitals showed a gradual decrease in the number of reported donors (from 75 in 2014 to 46 in 2018), although the number of all deaths did not decrease (the number of deaths in ICUs was on average 2.571/y).

Impact of cardiac function, refractory ascites and beta blockers on the outcome of patients with cirrhosis listed for liver transplantation

BACKGROUND & AIMS

Whether non-selective beta blockers (NSBBs) are deleterious in patients with end-stage cirrhosis and refractory ascites has been widely debated. We hypothesized that only the subset of patients on the liver transplant waiting list who had impaired cardiac performance would be at increased risk of mortality if receiving NSBBs.

METHODS

This study included 584 consecutive patients with cirrhosis evaluated for transplantation between 1999 and 2014. All patients had right heart catheterization with hemodynamic measurements at evaluation. Fifty percent received NSBBs. Refractory ascites was present in 33%. Cardiac performance was assessed by left ventricular stroke work index (LVSWI). Waiting list mortality without liver transplantation was explored using competing risk analysis.

RESULTS

LVSWI was significantly lower in patients with refractory ascites. In multivariate analysis using competing risk, refractory ascites, NSBBs and LVSWI were associated with waiting list mortality in the whole population, with a statistically significant interaction between NSBBs and LVSWI. The most discriminant value of LVSWI was 64.1 g-m/m². In the final model, refractory ascites (subdistribution hazard ratio 1.52; 95% CI1.01-2.28; p = 0.0083) and treatment by NSBBs with LVSWI <64.1 g-m/m² (subdistribution hazard ratio 1.96; 95% CI 1.32-2.90; p = 0.0009) were significantly associated with waiting list mortality, taking into account serum sodium and the model for end-stage liver disease score.

CONCLUSIONS

This study suggests that compromised cardiac performance is more common in patients with refractory ascites and that NSBBs are deleterious in cirrhotic patients with compromised cardiac performance. These results highlight the prognostic value of cardiac function in patients with end-stage cirrhosis.

LAY SUMMARY

There are still controversies concerning the impact of non-selective beta blockers on outcomes in patients with decompensated cirrhosis, especially in those with refractory ascites. In this study of 584 cirrhotic patients evaluated for liver transplantation, who underwent right heart catheterization, we have shown that global cardiac performance measured by left ventricular stroke work index is lower in patients with refractory ascites. Administration of non-selective beta blockers in patients with compromised cardiac performance may increase waiting list mortality. These results highlight the prognostic value of global cardiac performance in patients with end-stage cirrhosis.

Evolution of Deceased Organ Donation Activity Versus Efficiency Over a 15-year Period: An International Comparison

BACKGROUND

The donation rate (DR) per million population is not ideal for an efficiency comparison of national deceased organ donation programs. The DR does not account for variabilities in the potential for deceased donation which mainly depends on fatalities from causes leading to brain death. In this study, the donation activity was put into relation to the mortality from selected causes. Based on that metric, this study assesses the efficiency of different donation programs.

METHODS

This is a retrospective analysis of 2001 to 2015 deceased organ donation and mortality registry data. Included are 27 Council of Europe countries, as well as the United States. A donor conversion index (DCI) was calculated for assessing donation program efficiency over time and in international comparisons.

RESULTS

According to the DCI and of the countries included in the study, Spain, France, and the United States had the most efficient donation programs in 2015. Even though mortality from the selected causes decreased in most countries during the study period, differences in international comparisons persist. This indicates that the potential for deceased organ donation and its conversion into actual donation is far from being similar internationally.

CONCLUSIONS

Compared with the DR, the DCI takes into account the potential for deceased organ donation, and therefore is a more accurate metric of performance. National donation programs could optimize performance by identifying the areas where most potential is lost, and by implementing measures to tackle these issues.

Evaluation of outcomes in renal transplantation with hypothermic machine perfusion for the preservation of kidneys from expanded criteria donors

In 2012, an expert working group from the French Transplant Health Authority recommended the use of hypothermic machine perfusion (HMP) to improve kidney preservation and transplant outcomes from expanded criteria donors, deceased after brain death. This study compares HMP and cold storage (CS) effects on delayed graft function (DGF) and transplant outcomes. We identified 4,316 kidney transplants from expanded criteria donors (2011-2014) in France through the French Transplant Registry. DGF occurrence was analyzed with a logistic regression, excluding preemptive transplants. One-year graft failure was analyzed with a Cox regression. A subpopulation of 66 paired kidneys was identified: one preserved by HMP and the other by CS from the same donor. Kidneys preserved by HMP (801) vs CS (3515) were associated with more frequent recipient comorbidities and older donors and recipients. HMP had a protective effect against DGF (24% in HMP group and 38% in CS group, OR = 0.49 [0.40-0.60]). Results were similar in the paired kidneys (OR = 0.23 [0.04-0.57]). HMP use decreased risk for 1-year graft failure (HR = 0.77 [0.60-0.99]). Initial hospital stays were shorter in the HMP group (P < 0.001). Our results confirm the reduction in DGF occurrence among expanded criteria donors kidneys preserved by HMP.

Deceased organ donation activity and efficiency in Switzerland between 2008 and 2017: achievements and future challenges

BACKGROUND

Various actions have been taken during the last decade to increase the number of organs from deceased donors available for transplantation in Switzerland. This study provides an overview on key figures of the Swiss deceased organ donation and transplant activity between 2008 and 2017. In addition, it puts the evolution of the Swiss donation program's efficiency in relation to the situation in the neighboring countries.

METHODS

This study is an analysis of prospective registry data, covering the period from 1 January 2008 to 31 December 2017. It includes all actual deceased organ donors (ADD) in Switzerland. Donor data were extracted from the Swiss Organ Allocation System. The "donor conversion index" (DCI) methodology and data was used for the comparison of donation program efficiency in Switzerland, Germany, Austria, Italy and France.

RESULTS

During the study period there were 1116 ADD in Switzerland. The number of ADD per year increased from 91 in 2008 to 145 in 2017 (+ 59%). The reintroduction of the donation after cardiocirculatory death (DCD) program in 2011 resulted in the growth of annual percentages of DCD donors, reaching a maximum of 27% in 2017. The total number of organs transplanted from ADD was 3763 (3.4 ± 1.5 transplants per donor on average). Of these, 48% were kidneys (n = 1814), 24% livers (n = 903), 12% lungs (n = 445), 9% hearts (n = 352) and 7% pancreata or pancreatic islets (n = 249). The donation program efficiency assessment showed an increase of the Swiss DCI from 1.6% in 2008 to 2.7% in 2017 (+ 69%). The most prominent efficiency growth was observed between 2012 and 2017. Even though Swiss donation efficiency increased during the study period, it remained below the DCI of the French and Austrian donation programs.

CONCLUSION

Swiss donation activity and efficiency grew during the last decade. The increased donation efficiency suggests that measures implemented so far were effective. The lower efficiency of the Swiss donation program, compared to the French and Austrian programs, may likely be explained by the lower consent rate in Switzerland. This issue should be addressed in order to achieve the goal of more organs available for transplantation.

First Scandinavian Protocol for Controlled Donation After Circulatory Death Using Normothermic Regional Perfusion

Background

Donation after circulatory death (DCD) can increase the pool of available organs for transplantation. This pilot study evaluates the implementation of a controlled DCD (cDCD) protocol using normothermic regional perfusion in Norway.

Methods

Patients aged 16 to 60 years that are in coma with documented devastating brain injury in need of mechanical ventilation, who would most likely attain cardiac arrest within 60 minutes after extubation, were eligible. With the acceptance from the next of kin and their wish for organ donation, life support was withdrawn and cardiac arrest observed. After a 5-minute no-touch period, extracorporeal membrane oxygenation for post mortem regional normothermic regional perfusion was established. Cerebral and cardiac reperfusion was prevented by an aortic occlusion catheter. Measured glomerular filtration rates 1 year postengraftment were compared between cDCD grafts and age-matched grafts donated after brain death (DBD).

Results

Eight cDCD were performed from 2014 to 2015. Circulation ceased median 12 (range, 6-24) minutes after withdrawal of life-sustaining treatment. Fourteen kidneys and 2 livers were retrieved and subsequently transplanted. Functional warm ischemic time was 26 (20-51) minutes. Regional perfusion was applied for 97 minutes (54-106 minutes). Measured glomerular filtration rate 1 year postengraftment was not significantly different between cDCD and donation after brain death organs, 75 (65-76) vs 60 (37-112) mL/min per 1.73 m² (P = 0.23). No complications have been observed in the 2 cDCD livers.

Conclusion

A protocol for cDCD is successfully established in Norway. Excellent transplant outcomes have encouraged us to continue this work addressing the shortage of organs for transplantation.