Quality of life, risk assessment, and safety research in liver transplantation: new frontiers in health services and outcomes research. Curr Opin Organ Transplant. 2012;17:241-247. [PMID: 22476225 DOI: 10.1097/mot.0b013e32835365c6]

Myeloid-derived suppressor cells-induced exhaustion of CD8 + T-cell participates in rejection after liver transplantation

Liver transplantation (LT) rejection remains the most pervasive problem associated with this procedure, while the mechanism involved is still complicated and undefined. One promising solution may involve the use of myeloid-derived suppressor cells (MDSC). However, the immunological mechanisms underlying the effects of MDSC after LT remain unclear. This study is meant to clarify the role MDSCs play after liver transplantation. In this study, we collected liver tissue and peripheral blood mononuclear cells (PBMC) from LT patients showing varying degrees of rejection, as well as liver and spleen tissue samples from mice LT models. These samples were then analyzed using flow cytometry, immunohistochemistry and multiple immunofluorescence. M-MDSCs and CD8 + T-cells extracted from C57/BL6 mice were enriched and cocultured for in vitro experiments. Results, as obtained in both LT patients and LT mice model, revealed that the proportion and frequency of M-MDSC and PD-1 + T-cells increased significantly under conditions associated with a high degree of LT rejection. Within the LT rejection group, our immunofluorescence results showed that a close spatial contiguity was present between PD-1 + T-cells and M-MDSCs in these liver tissue samples and the proportion of CD84/PD-L1 double-positive M-MDSC was greater than that of G-MDSC. There was a positive correlation between the activity of CD84 and immunosuppressive function of M-MDSCs including PD-L1 expression and reactive oxygen species (ROS) production, as demonstrated in our in vitro model. M-MDSCs treated with CD84 protein were able to induce co-cultured CD8 + T-cells to express high levels of exhaustion markers. We found that CD84 regulated M-MDSC function via expression of PD-L1 through activation of the Akt/Stat3 pathway. These results suggest that the capacity for CD84 to regulate M-MDSC induction of CD8 + T-cell exhaustion may play a key role in LT rejection. Such findings provide important, new insights into the mechanisms of tolerance induction in LT.

Quality of life associated with immunosuppressant treatment adherence in liver transplant recipients: A cross-sectional study

Purpose: Transplanted organ survival after solid organ transplantation highly correlates with the adherence levels of the patients to their immunosuppressive drugs. On the other hand, one of the main goals of liver transplantation is to increase the overall quality of life (QOL) for the patient. This study is aimed to analyze the relationship between adherence and QOL in adult liver transplant recipients of the biggest liver transplant center in Asia. Methods: All of the included patients were older than 18 years and at least 6 months had passed from their liver transplantation. The adherence level was measured with BAASIS method and the QOL was assessed by SF-36 questionnaire in real-time interviews. The relationship between adherence and different aspects of QOL in addition to qualitative and quantitative influential factors on these two outcomes was calculated with statistical analysis. Results: Among the 122 included patients, 41% of the were categorized in the non-adherent group. The most important reasons for non-adherence in these patients included forgetfulness (62%), lack of medication (12%), financial problems for drug supply (9%), and side effects (2%). According to the results of the multivariate linear regression model, rejection was the only influential factor in the occurrence of non-adherence among patients (OR = 8.226 CI (1.404-48.196)). The overall mean QOL score of patients was reported 51.09 ± 21.86. The lowest is given to social functioning, while mental health has achieved the highest score. The mean QOL scores in different dimensions in patients with adherence were higher than non-adherents, which was only significant in mental health (p-value = 0.01). Additionally, in total scores related to Physical Composite Score (PSC) and Mental Composite Score (MCS), the mean MSC scores in adherent patients were significantly higher than non-adherent patients (p-value: 0.02). Although adherent patients have an overall greater QOL, the only meaningful effect on QOL total score was from income level. Conclusion: The overall QoL score has been in all parameters higher in the adherent group compared with non-adherent patients. The difference in QoL was most meaningfully significant in mental composite score among other parameters of QoL.

Quality of life in liver transplant recipients during the Corona virus disease 19 pandemic: A multicentre study

BACKGROUND

Liver transplant recipients require specific clinical and psychosocial attention given their frailty. Main aim of the study was to assess the quality of life after liver transplant during the current pandemic.

METHODS

This multicentre study was conducted in clinically stable, liver transplanted patients. Enrollment opened in June and finished in September 2021. Patients completed a survey including lifestyle data, quality of life (Short Form health survey), sport, employment, diet. To examine the correlations, we calculated Pearson coefficients while to compare subgroups, independent samples t-tests and ANOVAs. To detect the predictors of impaired quality of life, we used multivariable logistic regression analysis.

RESULTS

We analysed data from 511 patients observing significant associations between quality of life's physical score and both age and adherence to Mediterranean diet (p < .01). A significant negative correlation was observed between mental score and the sedentary activity (p < .05). Female patients scored significantly lower than males in physical and mental score. At multivariate analysis, females were 1.65 times more likely to report impaired physical score than males. Occupation and physical activity presented significant positive relation with quality of life. Adherence to Mediterranean diet was another relevant predictor. Regarding mental score, female patients were 1.78 times more likely to show impaired mental score in comparison with males. Sedentary activity and adherence to Mediterranean diet were further noteworthy predictors.

CONCLUSIONS

Females and subjects with sedentary lifestyle or work inactive seem to show the worst quality of life and both physical activity and Mediterranean diet might be helpful to improve it.

Quality of life analysis after stereotactic radiofrequency ablation of liver tumors

The purpose of this study was to evaluate the health-related quality of life (HRQoL) after stereotactic radiofrequency ablation (SRFA) of liver tumors and identify variables associated with decreased HRQoL and to compare it to other treatments in case of concurrency. From 2011 to 2017 577 patients underwent SRFA for liver tumors in 892 ablation sessions. 303 (52.5%) patients completed a HRQoL questionnaire once after the ablation. HRQoL was assessed by the Short Form (SF)-12 health survey with mental and physical component scales and by a general questionnaire to assess disease and treatment-specific items as well as to compare tolerability of SRFA to transarterial chemoembolization (TACE), hepatic resection (HR) and chemotherapy (CTX). The median SF-12 PCS was 46.6 and MCS was 53.2. Patients experiencing pain or complications and patients refusing repeat SRFA showed significantly lower PCS (43.2 vs 48.6, p = 0.0003; 32.8 vs 46.9, p = 0.005 and 40.6 vs 46.9, p = 0.009). 355 (97.8%) patients indicated willingness to undergo repeat SRFA with little to no fear in 292 (80.7%) patients. Among patients with multiple therapies, SRFA was rated by 40 (90.9%) as preferred re-treatment, HR by 1 (2.3%) and CTX by 3 (6.8%). In conclusion, we have shown that SRFA has good HRQoL-outcomes and reported low morbidity rates. Consequently the vast majority of study patients would accept a repeated SRFA if necessary (97.8%), without fear (80.7%). SRFA was preferred among patients who experienced concurrent treatments, such as HR or CTX.

The effect of liver transplantation on patient-centred outcomes: a propensity-score matched analysis

It is unclear whether liver transplantation confers an increase in health-related quality of life (HR-QoL) across all dimensions of health. This study aimed to estimate the effect of liver transplantation on HR-QoL. Pre- and post-transplantation patients attending an outpatient clinic were invited to complete the condition-specific 'Short form of liver disease QOL' questionnaire. Mixed-effect linear regression and propensity-score matching (PSM) on pretransplantation characteristics were used to estimate the difference in overall HR-QoL associated with transplantation. Of 454/609 (74.5%) eligible patients who were included in the analysis, 102 (22.5%) patients fall under pretransplantation category, and 352 (77.5%) were under post-transplantation category. Overall HR-QoL post-transplantation significantly increased in patients without hepatocellular carcinoma (HCC) (β = 16.84, 95% CI: 13.33 to 20.35, P < 0.001), but not with HCC (β = 1.25, 95% CI: -5.09 to 7.60, P = 0.704). Donation after circulatory death (DCD) organ recipients had a significantly lower HR-QoL (β = -4.61, 95% CI: -8.95 to -0.24, P = 0.043). Following PSM, transplantation was associated with a significant increase in overall HR-QoL (average treatment effect: 6.3, 95% CI: 2.1-10.9). There is a significant improvement in HR-QoL attributable to transplantation in this cohort. Post-transplantation HR-QoL was affected by several factors, including HCC status and DCD transplantation, which has important implications for counselling prior to liver transplantation.

Fatigue, Pain, and Other Physical Symptoms of Living Liver Donors in the Adult-to-Adult Living Donor Liver Transplantation Cohort Study

Little is known about living liver donors' perceptions of their physical well-being following the procedure. We collected data on donor fatigue, pain, and other relevant physical outcomes as part of the prospective, multicenter Adult-to-Adult Living Donor Liver Transplantation Cohort Study consortium. A total of 271 (91%) of 297 eligible donors were interviewed at least once before donation and 3, 6, 12, and 24 months after donation using validated measures when available. Repeated measures regression models were used to identify potential predictors of worse physical outcomes. We found that donors reported more fatigue immediately after surgery that improved by 2 years after donation, but not to predonation levels. A similar pattern was seen across a number of other physical outcomes. Abdominal or back pain and interference from their pain were rated relatively low on average at all study points. However, 21% of donors did report clinically significant pain at some point during postdonation study follow-up. Across multiple outcomes, female donors, donors whose recipients died, donors with longer hospital stays after surgery, and those whose families discouraged donation were at risk for worse physical well-being outcomes. In conclusion, although not readily modifiable, we have identified risk factors that may help identify donors at risk for worse physical outcomes for targeted intervention. Liver Transplantation 00 000-000 2018 AASLD.

A frailty index predicts post-liver transplant morbidity and mortality in HIV-positive patients

BACKGROUND

We hypothesized that frailty acts as a measure of health outcomes in the context of LT. The aim of this study was to explore frailty index across LT, as a measure of morbidity and mortality. This was a retrospective observational study including all consecutive 47 HIV+patients who received LT in Modena, Italy from 2003 to June 2015.

METHODS

frailty index (FI) was constructed from 30 health variables. It was used both as a continuous score and as a categorical variable, defining 'most frail' a FI > 0.45. FI change across transplant (deltaFI, ΔFI) was calculated as the difference between year 1 FI (FI-Y1) and pre-transplant FI (FI-t0). The outcomes measures were mortality and "otpimal LT" (defined as being alive without multi-morbidity).

RESULTS

Median value of FI-t0 was 0.48 (IQR 0.42-0.52), FI-Y1 was 0.31 (IQR 0.26-0.41). At year five mortality rate was 45%, "optimal transplant" rate at year 1 was 38%. All the patients who died in the post-LT were most frail in the pre-LT. ΔFI was a predictor of mortality after correction for age and MELD (HR = 1.10, p = 0.006) and was inversely associated with optimal transplant after correction for age (HR = 1.04, p = 0.01).

CONCLUSIONS

We validated FI as a valuable health measure in HIV transplant. In particular, we found a relevant correlation between FI strata at baseline and mortality and a statistically significant correlation between, ΔFI and survival rate.

Review article: maximising quality of life while aspiring for quantity of life in end-stage liver disease

BACKGROUND

With recent advances in the management of chronic liver disease and its complications, the long-term survival in cirrhosis has improved. Therefore, the number of individuals who will spend a significant proportion of their life with end-stage liver disease (ESLD) may continue to rise. Thus, more attention to quality of life (QOL) and its integration with traditional clinical endpoints is needed.

AIMS

Recently, there have been many studies looking at treatment outcomes and their impact on the QOL in patients with ESLD. The aim of this review was to summarise and compare the insights gained from these intervention studies and to make concise recommendations to further promote and improve QOL in this patient population.

METHODS

A literature search was conducted using PubMed and Web of Science. Search terms "Quality of life" "Cirrhosis" and "end-stage liver disease" were used as MeSH terms or searched in the title of the article.

RESULTS

These studies uniformly show significant improvement in health-related QOL (HRQOL) with management of malnutrition, hepatic encephalopathy and ascites. Thus, early recognition and management of these complications are keys to better serve our patients. Early involvement of palliative care also leads to improved quality of end-of-life care.

CONCLUSIONS

Complications of cirrhosis including malnutrition, encephalopathy, ascites and variceal bleeding lead to a decrease in HRQOL. Assessment of HRQOL has an important implication for the patient. The findings of this review illuminate the importance of using consistent tools to accurately assess QOL in patients with ESLD.

Quality of life after liver transplantation: State of the art

Quality of life (QoL) after deceased donor liver transplantation is increasingly recognized as a major outcome parameter. We reviewed recent publications in this rapidly evolving field in order to summarize recent achievements in the field and to define opportunities and perspectives for research and improvement of patient care. QoL does improve after liver transplantation according to a typical pattern. During the first year, there is a significant improvement in QoL. After one year, the improvement does stabilise and tends to decline slightly. In addition to the physical condition, different psychological parameters (such as depression, anxiety, sexual function) and sociodemographic elements (professional state, sex, marital state) seem to impact QoL. Opportunities for further research are the use of dedicated questionnaires and identification of influencing factors for QoL.

Mode of allocation and social demographic factors correlate with impaired quality of life after liver transplantation

Background

Health-related Quality of life (HRQoL) is a major goal of clinical management after liver transplantation (LTx). There is still disagreement on the effects of social-demographic factors and changes in the allocation system on HRQoL. The aim of this study was to evaluate the impact of social-demographic factors, mode of organ-allocation, waiting time and hepatocellular carcinoma (HCC) on HRQoL after LTx.

Methods

HRQoL was assessed using the EORTC-QLQ-C30 questionnaire, which was sent to 238 recipients. Investigated parameters included age, sex, distance to transplant center, follow-up at hospital, size of hometown, highest education, marital status, having children, background liver disease, waiting time, mode of allocation, HCC, hospitalization after LTx and diagnosis of malignancy after LTx. All evaluated parameters were entered into multivariate linear regression analysis.

Results

Completed questionnaire were returned by 73 % of the recipients. After LTx, the HRQoL-function scales increased over time. Age, marital status, highest education, completed professional training, working status, job position, duration of waiting time to LTx, distance to transplant center, place offollow, HU-statuts, mode of organ allocation and duration of hospitalization were associated with significantly worse function- and significantly lower symptom scales. HCC as a primary disease did not affect HRQoL.

Conclusions

Low HRQoL correlated significantly with MELD-based organ allocation, more than 28-day hospitalization, divorced status, lower education- and non-working status, higher distance to transplant center, follow up at transplant center, HU-status, shorter waiting time to LTx and younger age. Improvement of HRQoL after LTx may require clinical management of pain, psychotherapy and financial support.

The power of the liver transplant waiting list: a case presentation

End-stage liver disease (ESLD), the final stage of chronic liver disease, is treated with liver transplant. Many patients have serious ESLD-related complications and are admitted to the intensive care unit for treatment. Such patients are temporarily unsuitable to undergo transplant surgery and are placed into a temporarily inactive category, "status 7," on the transplant waiting list. Status 7 patients account for about 15% of all patients on the list. To describe the experience of a status 7 patient on the liver transplant waiting list from the perspectives of family members, 38 hours of bedside observation of participants, 9 semistructured interviews with 6 family members, and 9 semistructured interviews with 8 health care professionals from nursing, medicine, and other health care disciplines were done. Data were analyzed via conventional content analysis. Family members' perspectives fit into 3 phases that correspond to the progression of the patient's clinical condition: dealing with crisis, confusion and frustration, and back on the road to transplant. All 3 phases related to 1 goal: getting the patient's status reactivated on the liver transplant waiting list. This case exposes the struggles that patients with ESLD and their families may go through during the status 7 period and could serve as a starting point for further examination of this period.

Liver transplantation in older adults

Liver transplantation is the only definitive treatment therapy for end-stage liver disease. In the United States, approximately 15% of annual liver transplant recipients are 65 or older. The most common postoperative complications are infection, acute graft rejection, and acute renal failure. To prevent complications, recipients are treated with immunosuppressive medications and anti-infective agents. The long-term complications of liver transplantation are a consequence of long-term use of immunosuppressive medications and recurrence of the original disease in the liver. Nurses play a critical role in supporting and educating recipients and their primary support persons about post-transplant follow-up care, including laboratory test schedules, medication management, and infection prevention. Strict compliance with follow-up care provides the greatest possibility of avoiding complications or organ rejection.

Patient-reported immunosuppression nonadherence 6 to 24 months after liver transplant: association with pretransplant psychosocial factors and perceptions of health status change

CONTEXT

Knowing the prevalence and risk factors of immunosuppression nonadherence after liver transplant may help guide intervention development.

OBJECTIVE

To examine whether sociodemographic and psychosocial variables before liver transplant are predictive of nonadherence after liver transplant.

DESIGN

Structured telephone interviews were used to collect self-report immunosuppression adherence and health status information. Medical record reviews were then completed to retrospectively examine the relationship between immunosuppression adherence and pretransplant variables, including sociodemographic and medical characteristics and the presence or absence of 6 hypothesized psychosocial risk factors.

SETTING AND PARTICIPANTS

A nonprobability sample of 236 adults 6 to 24 months after liver transplant at 2 centers completed structured telephone interviews.

MAIN OUTCOME MEASURE

Immunosuppressant medication nonadherence, categorized as missed-dose and altered-dose "adherent" or "nonadherent" during the past 6 months; immunosuppression medication holidays.

RESULTS

Eighty-two patients (35%) were missed-dose nonadherent and 34 patients (14%) were altered-dose nonadherent. Seventy-one patients (30%) reported 1 or more 24-hour immunosuppression holidays in the past 6 months. Missed-dose nonadherence was predicted by male sex (odds ratio, 2.46; P= .01), longer time since liver transplant (odds ratio, 1.08; P= .01), pretransplant mood disorder (odds ratio, 2.52; P=.004), and pretransplant social support instability (odds ratio, 2.25; P=.03). Altered-dose nonadherence was predicted by pretransplant mood disorder (odds ratio, 2.15; P= .04) and pretransplant social support instability (odds ratio, 1.89; P= .03).

CONCLUSION

Rates of immunosuppressant nonadherence and drug holidays in the first 2 years after liver transplant are unacceptably high. Pretransplant mood disorder and social support instability increase the risk of nonadherence, and interventions should target these modifiable risk factors.

NUTORC-a transdisciplinary health services and outcomes research team in transplantation

The field of solid organ transplantation has historically concentrated research efforts on basic science and translational studies. However, there has been increasing interest in health services and outcomes research. The aim was to build an effective and sustainable, inter- and transdisciplinary health services and outcomes research team (NUTORC), that leveraged institutional strengths in social science, engineering, and management disciplines, coupled with an international recognized transplant program. In 2008, leading methodological experts across the university were identified and intramural funding was obtained for the NUTORC initiative. Inter- and transdisciplinary collaborative teams were created across departments and schools within the university. Within 3 years, NUTORC became fiscally sustainable, yielding more than tenfold return of the initial investment. Academic productivity included funding for 39 grants, publication of 60 manuscripts, and 166 national presentations. Sustainable educational opportunities for students were created. Inter- and transdisciplinary health services and outcomes research in transplant can be innovative and sustainable.