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1.

Introduction

Hepatocellular carcinoma (HCC) in cirrhosis is a widely accepted indication for liver transplantation (LT). Many scoring systems have been proposed intending to an extension of the established Milan criteria. Bridging treatments are systematically applied in order to maintain or to downstage such patients to the listing criteria. The objective of our study was to estimate the feasibility of the prediction of microvascular tumor invasion in transplant candidates.

Patients and methods

Data corresponding to transplanted HCC patients were reviewed for the purposes of this study. All tumor slices were blindly re-evaluated by a single pathologist in order to score for tumor necrosis and microvascular invasion. Recipients of pediatric or split LT were excluded.

Results

Eighty patients (30 women and 50 men) were included in the study. Tumor necrosis was absent in 29 of 80 liver explants (36.25%). In the majority of instances (63.75%) tumor necrosis was evident in proportions between 5% and 100%. In 58 liver explants showing 0%-60% tumor necrosis and 22 liver explants showing >?60% tumor necrosis, microvascular tumor invasion was detectable in 11 and 0 cases, respectively (P = .0385).

Conclusion

In about one-fourth of the cases (27.5%) microvascular tumor invasion could not be detected due to extended areas of tumor necrosis. Preoperative detection of microvascular invasion is misleading.  相似文献   

2.
3.

Background

Familial amyloidosis polyneuropathy (FAP) is a rare, progressive, and life-threatening disease inherited in the autosomal dominant pattern. Liver transplantation is the only proven disease-modifying treatment to date.

Aim

To study the long-term outcomes of patients transplanted for FAP under a multidisciplinary team care.

Methods

We included adult patients who were transplanted for FAP indication and were followed up in a relevant clinic or admitted in our department.

Results

Twelve patients (6 male) with a mean age of 43 years and mean follow-up post-transplant of 100 months were included. Three patients died in this period, 1 due to a disease-related cause. All patients had peripheral neuropathy (25% severe). Eighty-three percent had autonomic nervous system dysfunction; all men, except one, erectile dysfunction; and half of the patients several genitourinary manifestations. Gastrointestinal involvement was present in 75% of the patients. The severity of several complications related to FAP was found to be associated with waiting on the transplant list for more than 12 months.

Conclusions

Patients transplanted for FAP have a long survival. Prolonged stay on the transplant waiting list is associated with frequency and severity of disease complications. These patients are best managed in the context of multidisciplinary team care.  相似文献   

4.
A program of intensive care to facilitate organ donation (ICOD) represents one of the ways to increase donation rate following brain death (BD).

Objectives

To analyze the impact and cost-effectiveness of setting up an ICOD strategy.

Method

Retrospective cases of BD donors from the Spanish region La Rioja were included, after implementation of an ICOD program (2011–2016). This was activated in cases of devastating neurologic injury where treatment had been rejected following therapeutic futility criteria. Follow-up of kidney and liver transplant patients with the obtained grafts was carried out.

Results

A total of 134 potential donors were admitted to intensive care unit (ICU), of whom 106 were selected under the ICOD strategy. BD was diagnosed in 108 cases (25 conventional donors, 83 ICOD donors). A total of 21.6% of potential ICOD donors did not evolve to BD, subsequently dying in the ICU. ICOD cases accounted for more than 50% of donors each year. This cohort had an average stay of 2.4 days in the ICU and accounted for a small proportion of total ICU admissions. A total of 68 (81.9%) ICOD donors were finally effective and 146 grafts were extracted, the majority being abdominal organs (liver and kidney). Probability of survival 1 year after liver transplant (ICOD donor) was 90.9%, with 1 case of primary graft failure. Survival 1 year after kidney transplant (ICOD donor) was 92.7%. No differences were detected in survival rates of kidney and liver transplant patients regarding donor type (ICOD vs conventional).

Conclusions

Implementation of an ICOD program allows an increase in the pool of valid and quality grafts for transplant as well as implying a minimum consumption of intensive medicine resources. The results in transplant patients support this strategy.  相似文献   

5.
The renal replacement therapy in Saudi Arabia has 3 main modalities: hemodialysis, peritoneal dialysis, and renal transplantation. Hemodialysis is one of the fastest growing industries of health care providers in Saudi Arabia.

Objective

We aimed to review the health indicators of renal replacement therapy.

Materials and Methods

We used the Saudi Center for Organ Transplantation Annual Report 2016.

Results

Patients with end-stage renal disease on hemodialysis and peritoneal dialysis totaled 17,687. Saudi Arabia increased the numbers of dialysis centers and also added 2 more sectors. The Ministry of Health hospitals have 55% of the centers, government non–Ministry of Health has 9%, private and charitable hospitals have 21%, the King Abdullah Hemodialysis Project has 2%, and the outsourcing dialysis programs have 13%. There are 243 dialysis units in Saudi Arabia. Most dialysis centers are in the central region (30%); 27% are in the western region, 19% are in the southern region, 13% are in the eastern region, and 11% are in the northern region. The average net increase of dialysis patients is 6.2% annually and is projected to reach 22,000 by 2020. Causes of renal failure are mainly diabetic nephropathy (40%) and hypertensive nephropathy (38%). Hepatitis C virus positivity is at 12% and hepatitis B surface antigen positivity is at 4%. From the year 2000 renal transplantation from deceased and living donation has tripled in number, with a total of 798 kidneys transplanted.

Conclusion

Renal replacement therapy is increasing and dialysis center numbers are expected to increase. Renal transplantation numbers have improved both from living and deceased donors but further actions toward the promotion of the organ donation in Saudi Arabia is essential.  相似文献   

6.

Introduction

Preservation solutions (PS), in which grafts for patients undergoing liver transplantation are stored, represent a medium suitable for microorganism growth and a potential source for transmission of pathogenic germs to the transplant recipients. The aim of the present study was to review the relevant literature for the incidence and predictors of positive microbiological findings in the PS.

Patients and Methods

We performed a literature review of publications on bacterial and fungal contamination of PS during cold organ storage focusing on its impact on bacteremia and/or nosocomial infection of the recipient.

Results

Overall 19 studies were reviewed, published between the years 2000 and 2016, that encompassed a total of 5647 patients. Positive cultures were identified in 1428 patients (25%). The documentation of bacteremia showed a wide deviation with documented ranges between 0% and 69%. Data on the identification of same species or of related nosocomial infections were only sparsely available; same species were found in a rate of 0% to 8%, and nosocomial infections were attributed to them in an incidence of 0% to 19%.

Conclusions

Our study underlines both the limited published data and the contradictory available information on contamination of preservation solution in solid organ transplantation, not allowing for any recommendations. The necessity for prospective, multicentric studies on this topic is mandatory.  相似文献   

7.

Purpose

De novo donor-specific antibodies (DSA) are associated with antibody-mediated rejection leading to late renal transplant failure. The aim of this study was to evaluate whether HLA compatibility is associated with sensitization along with other risk factors.

Methods

Eighty-nine stable renal transplant recipients (47 men) were studied. Patients were classified into 2 groups according to HLA compatibility between donor and recipient, group A (1–4/8 matches) and group B (5–8/8 matches). Cold ischemia time (CIT) and delayed graft function (DGF) were recorded along with time with a functional graft. Anti-HLA antibodies were detected using a Luminex single-antigen bead assay and were further classified into DSA and non-DSA.

Results

HLA group A consisted of 49 (56%) transplant recipients while 38 (44%) were classified to group B, with functional grafts for 10.9 ± 6.7 and 14.8 ± 8.5 years, respectively (P = .019). Group A patients had more anti-HLA antibodies than group Β (P = .001) and this correlation was retained for DSA patients. De novo anti-HLA were detected in 40 patients; DSA were detected in 19 (21.8%). DSA (+) patients had recorded with functional renal grafts for 11 ± 5 years, compared to 14.4 ± 8.6 years (P = .048) for anti-HLA negative patients. Increased CIT and DGF were associated with anti-HLA antibodies detection but no with DSA.

Conclusion

HLA compatibility is probably correlated with DSA in a context of a more general anti-HLA sensitization, and both have a negative effect on long-term renal graft outcome.  相似文献   

8.
The strict selection of pancreas for transplant has forced the development of different documents to select the suitable organ in order to minimize the risks and complications of the transplant. In 2008, Eurotransplant published the Preprocurement Pancreas Allocation Suitability Score (P-PASS) for pretransplant selection. In 2001 the Hospital Clinic of Barcelona developed a Clinical Consensus Document (CCD).

Objectives

We aimed to analyze the predictive decision of the pancreas acceptance to offers received in the hospital, according to the CCD criteria and compare it with the recommended value of suitability for accepting the pancreas according to the P-PASS value.

Material and Methods

We performed a retrospective comparative study between the criteria of selection of the CCD for pancreas from 2016–2017 in comparison with the values obtained if the P-PASS had been used: ≤?17, acceptance criteria and P-PASS; >?17, risk criteria. We defined the organ reported as rejected or accepted. The accepted organ could be procured and transplanted or discarded.

Results

With the CCD criteria, 7 more organs were transplanted than if we only applied the potential P-PASS criteria. In contrast, P-PASS would have ruled out an additional 9% of pancreases in relation to CCD criteria.

Conclusions

According our experience, it is difficult to find an adequate prediction model to select pancreas for transplantation. The application of the DCC criteria increases the number of organs valid for transplantation. At present, new criteria should be re-evaluated within multicenter studies.  相似文献   

9.

Introduction

The knowledge of the brain death (BD) concept is important when determining the attitude toward organ donation.

Objective

To analyze the level of knowledge of the BD concept among the population in Santiago de Cuba and determine the factors that condition it.

Methods

From the Collaborative International Donor Project, we obtained a sample of Cubans living in the area of Santiago de Cuba (n = 455). The attitude was assessed using a validated questionnaire (PCID-DTO-RIOS). The survey was self-administered and completed anonymously. Student t test, χ2, Fisher, and logistic regression analysis were used.

Results

Forty percent (n = 180) of the respondents know the BD concept and consider it as the death of an individual. Of the rest, 43% (n = 199) do not know about it, and the remaining 17% (n = 76) consider that it does not mean the death of a patient. The variables significantly related to the correct knowledge of BD in the multivariate analysis and considered as independent are: level of studies; the opinion of the couple toward organ donation; the religion of the respondent; having offspring; and a favorable attitude toward organ donation.

Conclusion

There is ignorance about the brain death concept among the population of Santiago de Cuba. This lack of knowledge has a direct relationship with various psychosocial factors.  相似文献   

10.
The awareness of organ donation among health professionals is important at the time of transplant promotion. In this sense, the training and awareness of the professionals in training is fundamental.

Objective

To analyze the differences in the attitude toward organ donation and the factors that condition it among medical students of regions with donation rates >50 donors per million population (pmp) with respect to those with rates <40 donor pmp.

Method

Population under study: medical students in Spanish universities. Database of the Collaborative International Donor Project, stratified by geographic area and academic course. The completion was anonymous and self-administered. Groups under study: Group 1 (n = 1136): students in universities of regions with >50 donors pmp. Group 2 (n = 2018): university students in regions with <40 donors pmp. Assessment instrument: attitude questionnaire for organ donation for transplant PCID-DTO-Ríos.

Results

The attitude toward organ donation for transplantation is similar among students from the autonomous communities with >50 donors pmp and with <40 donors pmp. In group 1, 79% (n = 897) of students are in favor compared with 81% (n = 1625) of group 2 (P=.29). The psychosocial profile toward donation is similar in both groups relating to the following variables (P < .05): sex, having discussed transplantation with family and as a couple, considering the possibility of needing a transplant, involvement in prosocial activities, attitude toward the manipulation of corpses, knowledge of the brain death concept, and religion.

Conclusions

The awareness of organ donation in Spanish medical students is quite homogeneous and is not related to the local donation rates of each region.  相似文献   

11.
The involvement of health professionals from their training period is important for the promotion of living liver donation. There are data that indicate that the awareness of living donation is lower in areas with high rates of deceased donation.

Objective

To analyze the attitude toward living liver donation among Spanish medical students, according to donation rates of their regions.

Method

Population under study: Medical students in Spanish universities. Database of the Collaborative International Donor Project, stratified by geographic area and academic course. The completion was anonymous and self-administered. Groups under study: group 1 (n = 1136): students in universities of regions with >50 donors per million population (pmp); group 2 (n = 2018): students in region universities with <40 donors pmp. Assessment instrument: the attitude questionnaire for living liver donation Proyecto Colaborativo Internacional Donante sobre Donación de Vivo Hepático-Ríos (PCID-DVH Ríos).

Results

The attitude toward related liver donation is more favorable among the students of regions with <40 donors pmp than among those of >50 donors pmp. Thus, in group 1, a total of 88% (n = 1002) of students are in favor compared with 91% (n = 1831) of group 2 (P=.02). The psychosocial profile of each study group about their attitude toward living related liver donation is analyzed. There is a similar profile between the 2 groups, although there are differences in some variables such as age, a belief that one might need a transplant, family discussion about donation and transplantation, discussion with friends about donation and transplantation, and knowing about a donor.

Conclusions

The awareness of living related donation among Spanish medical students is greater among the regions with lower organ donation rates.  相似文献   

12.

Background

The reverse total shoulder arthroplasty (RTSA) is a common therapy for the fracture sequelae (FS) of the proximal humerus. The aim of this study was to show the short and midterm clinical outcome of the RTSA for FS and to identify prognostic factors.

Methods

Data from 46 patients with chronic FS who underwent RTSA were analysed. The clinical follow-up included the Constant score and radiographic examination. Patients were divided into groups based on the Boileau classification of FS, and the degree of metaphyseal bone loss was measured (Boileau type I 9 patients; type II 3 patients; type III 8 patients and type IV 16 patients). Scapular notching was assessed according to the classification of Sirveaux.

Results

The mean postoperative Constant score was 57. Clinical outcomes were similar among the various FS groups, as defined according to the Boileau classification, but patients who had undergone revision arthroplasty had a significantly inferior mean Constant score than patients with type IV FS. There were no significant differences between patients who were initially managed with conservative therapy and those treated surgically. Patients with metaphyseal bone loss >3 cm showed inferior clinical scores. Inferior scapular notching was seen in 25 patients, and had a negative effect on the clinical outcome. Complications included five infections and one dislocation.

Conclusion

Metaphyseal bone loss was unfavourable prognostic factors in patients with FS treated with RTSA. However, the Boileau classification did not serve as a prognostic criterion. Previous operative or conservative treatment had no influence on the outcome and scapular notching was associated with inferior clinical results.  相似文献   

13.

Introduction

Despite their benign nature, liver hemangiomas (LH) are lesions that can cause major complications requiring intervention. Liver transplantation (LT) has been suggested as an effective treatment option in selected patients with giant LHs causing severe symptoms and cannot be treated otherwise. The aim of our study was to investigate the indications, aspects and post-operative outcomes of patients with a LH who underwent LT.

Materials and methods

A meticulous search of the literature was performed. Studies presenting cases of LT due to LH were evaluated. Studies presenting patients characteristics and symptoms, aspects of the disease, transplantation indications and details were selected.

Results

Fifteen studies were included in the present review that involved 16 patients. Among them, 4 were male while the remaining 12 were female with a mean age of 39.9 ± 8.7 years. The main indications for LT included respiratory distress, massive hemorrhage, Kasabach-Merritt syndrome, and unsuccessful previous treatment strategies. Four patients were transplanted from living donors and the remaining 12 from cadaveric donors. No post-operative deaths were reported and all patients returned to normal activity. No deaths during the long-term follow-up were reported.

Conclusions

LH is an extremely rare indication for LT. Nevertheless, the currently available data suggest that LT is a safe and efficient treatment in the management of symptomatic or complicated LH in selected patients.  相似文献   

14.

Introduction

The refusal to consider death and the donation and transplantation of organs make Gypsies one of the subpopulation groups with the lowest donation rates in Europe. The approach of this social group implies the support of the most favorable social groups within their own ethnic group. In this sense, the young population with a high level of education is usually the most favorable toward organ donation.

Objective

To analyze the attitude toward the donation of one's own organs for transplantation among the Gypsy population under 45 years and with secondary or university studies.

Method

Population under study: The Gypsy population under 45 years old with secondary or university studies who currently reside in Spain. Assessment instrument: The attitude questionnaire for organ donation for transplantation PCID–DTO Ríos. Fieldwork: A random selection based on stratification. Anonymity and self-administered fulfillment. Statistics: Student t test and χ2.

Results

A total of 44 Gypsy people under 45 years of age were surveyed (mean age 31 ± 8.9 years); 66% were women, and the rest were men. Of these, 20 had university studies, and 24 had secondary or vocational studies. The attitude is favorable toward organ donation in 64% of the respondents, with 80% among university students and 50% among those with secondary or vocational education (P < .005).

Conclusions

The young Gypsy population with university studies has a very favorable attitude toward organ donation. This population subgroup must be key in the promotion of organ donation in the Gypsy population, so the transplant coordinators must request their collaboration in the promotion campaigns of organ donation and transplantation.  相似文献   

15.

Aims

Variations of the anatomy of donor hepatic arteries increase the number of arterial anastomoses during liver transplantation and, possibly, the incidence of hepatic artery thrombosis (HAT). In this study, we describe the arterial anatomic variations in liver grafts procured and transplanted by a single center in Greece, the techniques of arterial anastomosis, and their effect on the incidence of early HAT.

Materials and Methods

From January 2013 to December 2017, the arterial anatomy of 116 grafts procured for liver transplantation were recorded, as well as the technique of arterial anastomosis and the incidence of early hepatic artery thrombosis (HAT <30 days).

Results

A single hepatic artery was recorded in 72.41% of the procured grafts, an aberrant left hepatic artery (accessory or replaced) in 18 grafts (15.52%), and an aberrant right hepatic artery (accessory or replaced) in 17 grafts (14.66%), while other variations were observed in less than 1% of the procured livers. Of the 116 primary liver transplantations, 6 patients (5.17%) developed early HAT <30 days. Two of these patients (1.72%) had 1 anastomosis of the hepatic artery and 4 (3.45%) had 2 anastomoses due to anatomic variations.

Conclusions

Anatomic variations of the hepatic artery in liver grafts is a common finding and increase the incidence of early HAT but not to a degree to make these grafts unusable.  相似文献   

16.
Hypothermic machine perfusion (HMP) decreases delayed graft function (DGF) and improves 1-year graft survival in expanded criteria donors (ECDs). Time of HMP could be associated with incidence of DGF.

Objective

To analyze functional outcomes of ECD grafts preserved totally (local grafts) or partially (imported grafts) with HMP.

Materials and Methods

We analyzed prospectively collected data from a cohort of first ECD graft receptors, with a minimum follow-up of 6 months. A total of 119 imported and 74 local grafts were included. Local ECD kidneys were preserved with HMP after retrieval. Imported ECD kidneys were preserved with simple cold storage and HMP. Vascular thrombosis, acute rejection, DGF, 1-year glomerular filtration rate, and 1-year graft survival were assessed. Univariate and estimative multivariate logistic regression was applied for analysis of DGF. A Cox proportional hazards model was applied to estimate graft survival.

Results

DGF occurred in 14 recipients of local grafts and in 33 recipients of imported grafts (28.0 vs 18.1%, P = .13); 1-year graft survival was better in the group of local grafts (80.3 vs 91.9%, P = .03). No differences in vascular thrombosis (5.9 vs 5.4%, P = .88), acute rejection (12.3 vs 9.8%, P = .91), or 1-year glomerular filtration rate (41.2 vs 40.5 mL/m/1.73m2, P = .87) were observed. In multivariate analysis, adjusted odds ratio for DGF was 1.20 (P = .79) and adjusted hazard ratio for graft survival was 1.93 (P =?.31).

Conclusions

There is a trend that complete HMP reduces the risk of DGF and improves 1-year graft survival in ECD kidneys.  相似文献   

17.

Introduction

The sensitization of the population toward organ donation is fundamental; for that reason, it is important to determine the factors that condition the opinion toward donation on the population scope in order to carry out cost-effective campaigns.

Objective

To analyze the attitude toward the donation of the proper organs for transplantation among the population residing in Cienfuegos, Cuba.

Method

Population under study: Population who reside in Cienfuegos, Cuba. Inclusion criteria: Population over 15 years old as stratified by age and sex. Assessment instrument: The attitude questionnaire for organ donation for transplant—PCID–DTO Ríos. Fieldwork: A random selection based on stratification. The available data from the census were used. The completion was anonymous and self-administered. Verbal consent was requested to collaborate in the study. Statistics: Student t test, χ2, Fisher, and a logistic regression analysis.

Results

A sample of 636 respondents was included in the study, of which 71% (n = 453) are in favor of donating their organs after death, 16% (n = 103) are against, and 13% (n = 80) are undecided. This attitude is associated with different psychosocial variables (P < .001): age, marital status, having offspring, level of studies, carrying out prosocial activities, discussing with the family the subject of donation and transplantation, knowledge of the concept of brain death, the attitude toward the manipulation of the corpse, the religion of the respondent, and the attitude of the couple toward organ transplantation. The main independent factors obtained in the multivariate analysis (odds ratio >2.5): knowledge of the brain death concept, attitude toward the manipulation of the corpse, religion, and attitude of the couple toward transplantation.

Conclusions

The attitude toward organ donation among the population of Cienfuegos, Cuba, is favorable and is conditioned by several psychosocial factors.  相似文献   

18.

Introduction

Organ refusal rates among Gypsies is much higher than that of any other social group in Spain. However, their attitude toward new therapies related to transplantation, such as the xenotransplantation, is not known. This is especially important in countries such as Spain, where there are research and development units for xenotransplantation.

Objective

To analyze the attitude toward xenotransplantation among the Gypsy population living in Spain.

Method

Type of study: Observational sociological study. Population under study: Adult Gypsy population currently residing in Spain. Sample: A random sampling of 230 adult Gypsies. Assessment instrument: A validated attitude questionnaire for xenotransplantation—PCID–XenoTx Ríos. Fieldwork: Random selection based on stratification. Anonymity and self-administered fulfillment. Statistics: Student t test, χ2, Fisher, and a logistic regression analysis.

Results

A sample of 206 Gypsies was obtained. Forty-five percent (n = 93) would accept a solid organ xenotransplantation if they needed it, and the results were similar to those currently obtained with human organs; 24% (n = 49) have doubts, and 31% (n = 64) would not accept the xenotransplantation. If the results were worse than with human organs, only 9% would accept the xenotransplantation (n = 19). Respondents with a favorable attitude toward xenotransplantation presented a more favorable attitude toward cadaveric organ donation (55% vs 34%, P = .01).

Conclusions

Gypsies do not present a very favorable attitude toward xenotransplantation, especially compared with other Spanish population groups. A favorable sensitivity is presented by the population group in favor of it to cadaveric organ donation, which could be used to sensitize this social group and promote donation campaigns with the aim of increasing donation rates.  相似文献   

19.
20.

Purpose

Liver transplantation (LT) constitutes a major therapeutic option for a number of patients suffering from liver pathologies. Pregnancy outcomes in patients who have undergone LT are assessed by a number of studies. The aim of our systematic review was to present the currently available evidence concerning the results of pregnancy in patients with LT.

Materials and Methods

A meticulous systematic search of the literature published before September 2017 for studies relevant in this field was conducted. All studies, which presented obstetric and maternal outcomes of patients with prior LT, were included.

Results

Nineteen studies, which comprised 1290 pregnancies in 885 female LT recipients, were reviewed. A total of 1014 live births were recorded, and the incidence of spontaneous abortions ranged from 0.5% to 33.3%. Concerning live births, a proportion of 32% of pregnancies resulted in preterm births (345 preterm births in 1079 pregnancies, range 0%-39%), and in 16% of pregnancies preeclampsia was reported (188 cases from 1173 pregnancies, range 2%-33.3%). The most commonly administered immunosuppressive drugs were cyclosporine and tacrolimus alone or with steroids. Cesarean section rates ranged from 20% to 67.9% among the included studies, concerning live birth. Moreover, approximately one-third of them resulted in preterm birth. Spontaneous abortions were reported in 176 cases (range: 0.5%-33.3%), and preeclampsia occurred in 188 patients (range: 2%-33.3%).

Conclusion

Pregnancy outcomes from the included studies are encouraging, nonetheless pregnant patients who have undergone LT are at high risk and therefore require close monitoring by a multidisciplinary team.  相似文献   

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