Inflammatory agents partially explain associations between cortical thickness, surface area, and body mass in adolescents and young adulthood.

BACKGROUND/OBJECTIVES: Excessive body mass index (BMI) has been linked to a low-grade chronic inflammation state. Unhealthy BMI has also been related to neuroanatomical changes in adults. Research in adolescents is relatively limited and has produced conflicting results. This study aims to address the relationship between BMI and adolescents' brain structure as well as to test the role that inflammatory adipose-related agents might have over this putative link. METHODS: We studied structural MRI and serum levels of interleukin-6, tumor necrosis factor alpha (TNF-α), C-reactive protein and fibrinogen in 65 adolescents (aged 12-21 years). Relationships between BMI, cortical thickness and surface area were tested with a vertex-wise analysis. Subsequently, we used backward multiple linear regression models to explore the influence of inflammatory parameters in each brain-altered area. RESULTS: We found a negative association between cortical thickness and BMI in the left lateral occipital cortex (LOC) and the right precentral gyrus as well as a positive relationship between surface area and BMI in the left rostral middle frontal gyrus and the right superior frontal gyrus. In addition, we found that higher fibrinogen serum concentrations were related to thinning within the left LOC (ß = -0.45, p < 0.001), while higher serum levels of TNF-α were associated to a greater surface area in the right superior frontal gyrus (ß = 0.32, p = 0.045). Besides, we have also identified a trend that negatively correlates the cortical thickness of the left fusiform gyrus with the increases in BMI. It was also associated to fibrinogen (ß = -0.33, p = 0.035). CONCLUSIONS: These results suggest that adolescents' body mass increases are related with brain abnormalities in areas that could play a relevant role in some aspects of feeding behavior. Likewise, we have evidenced that these cortical changes were partially explained by inflammatory agents such as fibrinogen and TNF-α.

The updated Charlson comorbidity index is a useful predictor of mortality in patients with Staphylococcus aureus bacteraemia.

The objective was to compare the performance of the updated Charlson comorbidity index (uCCI) and classical CCI (cCCI) in predicting 30-day mortality in patients with Staphylococcus aureus bacteraemia (SAB). All cases of SAB in patients aged ⩾14 years identified at the Microbiology Unit were included prospectively and followed. Comorbidity was evaluated using the cCCI and uCCI. Relevant variables associated with SAB-related mortality, along with cCCI or uCCI scores, were entered into multivariate logistic regression models. Global model fit, model calibration and predictive validity of each model were evaluated and compared. In total, 257 episodes of SAB in 239 patients were included (mean age 74 years; 65% were male). The mean cCCI and uCCI scores were 3.6 (standard deviation, 2.4) and 2.9 (2.3), respectively; 161 (63%) cases had cCCI score ⩾3 and 89 (35%) cases had uCCI score ⩾4. Sixty-five (25%) patients died within 30 days. The cCCI score was not related to mortality in any model, but uCCI score ⩾4 was an independent factor of 30-day mortality (odds ratio, 1.98; 95% confidence interval, 1.05-3.74). The uCCI is a more up-to-date, refined and parsimonious prognostic mortality score than the cCCI; it may thus serve better than the latter in the identification of patients with SAB with worse prognoses.

Affected connectivity organization of the reward system structure in obesity.

With the prevalence of obesity rapidly increasing worldwide, understanding the processes leading to excessive eating behavior becomes increasingly important. Considering the widely recognized crucial role of reward processes in food intake, we examined the white matter wiring and integrity of the anatomical reward network in obesity. Anatomical wiring of the reward network was reconstructed derived from diffusion weighted imaging in 31 obese participants and 32 normal-weight participants. Network wiring was compared in terms of the white matter volume as well as in terms of white matter microstructure, revealing lower number of streamlines and lower fiber integrity within the reward network in obese subjects. Specifically, the orbitofrontal cortex and striatum nuclei including accumbens, caudate and putamen showed lower strength and network clustering in the obesity group as compared to healthy controls. Our results provide evidence for obesity-related disruptions of global and local anatomical connectivity of the reward circuitry in regions that are key in the reinforcing mechanisms of eating-behavior processes.

Multicenter study of epidemiological cutoff values and detection of resistance in Candida spp. to anidulafungin, caspofungin, and micafungin using the Sensititre YeastOne colorimetric method.

Neither breakpoints (BPs) nor epidemiological cutoff values (ECVs) have been established for Candida spp. with anidulafungin, caspofungin, and micafungin when using the Sensititre YeastOne (SYO) broth dilution colorimetric method. In addition, reference caspofungin MICs have so far proven to be unreliable. Candida species wild-type (WT) MIC distributions (for microorganisms in a species/drug combination with no detectable phenotypic resistance) were established for 6,007 Candida albicans, 186 C. dubliniensis, 3,188 C. glabrata complex, 119 C. guilliermondii, 493 C. krusei, 205 C. lusitaniae, 3,136 C. parapsilosis complex, and 1,016 C. tropicalis isolates. SYO MIC data gathered from 38 laboratories in Australia, Canada, Europe, Mexico, New Zealand, South Africa, and the United States were pooled to statistically define SYO ECVs. ECVs for anidulafungin, caspofungin, and micafungin encompassing ≥97.5% of the statistically modeled population were, respectively, 0.12, 0.25, and 0.06 µg/ml for C. albicans, 0.12, 0.25, and 0.03 µg/ml for C. glabrata complex, 4, 2, and 4 µg/ml for C. parapsilosis complex, 0.5, 0.25, and 0.06 µg/ml for C. tropicalis, 0.25, 1, and 0.25 µg/ml for C. krusei, 0.25, 1, and 0.12 µg/ml for C. lusitaniae, 4, 2, and 2 µg/ml for C. guilliermondii, and 0.25, 0.25, and 0.12 µg/ml for C. dubliniensis. Species-specific SYO ECVs for anidulafungin, caspofungin, and micafungin correctly classified 72 (88.9%), 74 (91.4%), 76 (93.8%), respectively, of 81 Candida isolates with identified fks mutations. SYO ECVs may aid in detecting non-WT isolates with reduced susceptibility to anidulafungin, micafungin, and especially caspofungin, since testing the susceptibilities of Candida spp. to caspofungin by reference methodologies is not recommended.

Progression of alterations in lipid metabolism in kidney transplant recipients over 5 years of follow-up.

BACKGROUND: Alterations in lipid metabolism frequently affect kidney transplant recipients and contribute to the onset of metabolic and cardiovascular diseases that threaten graft integrity. The purpose of this research study was to investigate the pattern of hyperlipidaemia and its progression, as well as to study potential risk factors in kidney transplant recipients. METHODS: In this study, 119 kidney transplant recipients of both sexes were monitored over a period of 5 years in our posttransplant clinic. During this period, all patients had pretransplant and posttransplant blood tests to measure levels of the following: total cholesterol, low-density lipoproteins (LDL), high-density lipoproteins (HDL) and triglycerides. Furthermore, the subjects were also weighed and their height measured. Their body mass index was then calculated using the weight (kg)/height (m(2) ) formula. RESULTS: In the 5 years following the transplant, the patients experienced a significant increase in the levels of their biochemical markers as well as in their BMI. Consequently, a greater number suffered from dyslipidaemia, diabetes and hypertension. CONCLUSIONS: Kidney transplants can often trigger hyperlipidaemia, as reflected in higher levels of total cholesterol, low-density lipoproteins and high-density lipoproteins. The results of our study also showed that despite statin therapy, the patients had higher triglyceride levels, which made them more vulnerable to diabetes, hypertension, cardiovascular disease and graft rejection.

Satisfaction Level of New Mothers with Prenatal Care and the Healthcare Professionals Who Provide It.

INTRODUCTION: Prenatal care is a key strategy to reduce maternal mortality. The aims of this work were to ascertain the level of satisfaction of new mothers with their pregnancy monitoring and with the medical professionals who provided prenatal care. SUBJECTS AND METHODS: A descriptive study was conducted on 265 new mothers, 18-43 years of age, who had given birth at the Virgen de las Nieves University Hospital and the San Cecilio University Hospital in Granada (Spain) in April and May 2012. The data were collected with a questionnaire consisting of 28 items that elicited information from the subjects about their pregnancy, prenatal care activities, the healthcare professionals that provided the care, and those that they would like to monitor future pregnancies. There were also two open questions. The first was about the perceived needs of the participants and the second asked them to suggest ways that prenatal care could be improved. RESULTS: The majority of the subjects (59.6%) had given birth for the first time. The midwife was the healthcare professional who performed most of the monitoring activities and resolved their doubts and problems (32.74%), gave the subjects tranquility and security (37.86%) and listened to their worries (34.53%). The subjects' satisfaction with the healthcare professionals was generally high. This was particularly true of the midwife (90.75%). Half of the subjects surveyed said that they wanted the midwife, obstetrician and general practitioner to monitor their pregnancy. They also underlined the need for longer and more visits with the midwife as well as more consultations with the obstetrician and higher number of ultrasounds. CONCLUSIONS: The subjects were very satisfied with the work of the healthcare professionals that monitored their pregnancy, particularly with the midwife. However, they also highlighted expectations and needs that, if met, would increase their satisfaction.

Functional connectivity in obesity during reward processing.

Obesity is a health problem that has become a major focus of attention in recent years. There is growing evidence of an association between obesity and differences in reward processing. However, it is not known at present whether these differences are linked exclusively to food, or whether they can be detected in other rewarding stimuli. We compared responses to food, rewarding non-food and neutral pictures in 18 young adults with obesity and 19 normal-weight subjects using independent component analysis. Both groups modulated task-related activity in a plausible way. However, in response to both food and non-food rewarding stimuli, participants with obesity showed weaker connectivity in a network involving activation of frontal and occipital areas and deactivation of the posterior part of the default mode network. In addition, obesity was related with weaker activation of the default mode network and deactivation of frontal and occipital areas while viewing neutral stimuli. Together, our findings suggest that obesity is related to a different allocation of cognitive resources in a fronto-occipital network and in the default mode network.

Neural responses to visual food cues: insights from functional magnetic resonance imaging.

The aim of this paper is to describe the patterns of functional magnetic resonance imaging activation produced by visual food stimuli in healthy participants, as well as in those with anorexia nervosa, bulimia nervosa, binge eating disorder and obesity. We conducted a systematic review of studies published in the last decade on normal and abnormal eating. This review suggested the existence of neural differences in response to the sight of food between healthy individuals, those with an eating disorder and obese subjects. Differences were identified in two brain circuits: (i) limbic and paralimbic areas associated with salience and reward processes and (ii) prefrontal areas supporting cognitive control processes.

Consensus of experts from the Spanish Pharmacogenetics and Pharmacogenomics Society and the Spanish Society of Medical Oncology for the genotyping of DPYD in cancer patients who are candidates for treatment with fluoropyrimidines.

5-Fluorouracil (5-FU) and oral fluoropyrimidines, such as capecitabine, are widely used in the treatment of cancer, especially gastrointestinal tumors and breast cancer, but their administration can produce serious and even lethal toxicity. This toxicity is often related to the partial or complete deficiency of the dihydropyrimidine dehydrogenase (DPD) enzyme, which causes a reduction in clearance and a longer half-life of 5-FU. It is advisable to determine if a DPD deficiency exists before administering these drugs by genotyping DPYD gene polymorphisms. The objective of this consensus of experts, in which representatives from the Spanish Pharmacogenetics and Pharmacogenomics Society and the Spanish Society of Medical Oncology participated, is to establish clear recommendations for the implementation of genotype and/or phenotype testing for DPD deficiency in patients who are candidates to receive fluoropyrimidines. The genotyping of DPYD previous to treatment classifies individuals as normal, intermediate, or poor metabolizers. Normal metabolizers do not require changes in the initial dose, intermediate metabolizers should start treatment with fluoropyrimidines at doses reduced to 50%, and poor metabolizers are contraindicated for fluoropyrimidines.

Nursing personnel's perceptions of the organizational climate in public and private hospitals in Spain.

BACKGROUND: Organizational climate is considered one of the most significant determinants of individual and group behaviour in institutions. The International Council of Nurses has launched a campaign to improve professional recognition, support for personal development, safety and health at work. AIM: To analyse nursing personnel's organizational climate perceptions using the Work Environment Scale (WES) in two categories of hospitals. METHODS: A cross-sectional survey was undertaken in public and private hospitals. Two sampling approaches were used. At the Public Hospital, the sample was randomly selected (n = 297, 168 nurses and 129 other nursing personnel). At the Private Hospitals, a convenience sampling method was used (n = 66, 14 nurses and 52 other nursing personnel). The study used descriptive and inferential statistic analyses to explain the nursing personnel perception of organizational climate and to explore variations between nurses and other nursing personnel in both categories of hospitals. RESULTS: Sixty per cent and seventy per cent of WES subscales yielded scores below the midpoint for the perception of work environment in public and private hospitals, respectively. Mean scores for both categories were similar, except for the subscales of Pressure and Control that were higher in Private Hospitals. In the Public Hospital, nurses scored significantly lower than other nursing personnel in Involvement, Innovation and Comfort. CONCLUSIONS: Based on these findings, it is suggested that nurse managers should introduce strategies to set conditions for a better work environment in public and private hospitals.

[Utility of the blood culture in infection of the urinary tract with fever in the elderly]. / Utilidad del hemocultivo en la infección del tracto urinario con fiebre en el anciano.

OBJECTIVE: Urinary tract infections are one of the most common community infections. The diagnosis of urinary infections in the elderly is complex because of its presentation and clinic. The aim of this article is to evaluate the usefulness of blood cultures in febrile urinary tract infection in elderly patients, risk factors, causes of discordance between urine and blood cultures, usefulness of biomarkers and mortality. METHODS: Observational study of patients admitted over 65 years old, with urinary infections. RESULTS: A total of 216 episodes with urinary infections and blood cultures performed. 70 (32,4%) cases with bacteremia. The most frequently detected isolates in blood cultures were: Escherichia coli 50 (71,4%) and Proteus spp. 6 (8,5%). Only septic shock was associated with a higher frequency of bacteraemia (OR=2,93, IC 95: 1,0-8,5; p=0,04). In 26 of the blood cultures a different isolation of the urine culture was detected. Overall mortality was 9.1%, with no association with the presence of bacteremia (p>0. 05). CONCLUSIONS: One third of elderly people hospitalized by tract urinary infection had bacteremia. Their detection was not associated with overall mortality. Disagree between blood and urine cultures in febrile is frequent, especially in patients with recent antibiotic treatment or recently hospitalized.

Urinary tract infection caused by Enterococcus spp.: Risk factors and mortality. An observational study.

BACKGROUND AND OBJECTIVE: Urinary tract infections (UTIs) are frequently caused by Enterococcus spp. This work aims to define the risk factors associated with UTIs caused by Enterococci and to determine its overall mortality and predictive risk factors. MATERIALS AND METHODS: A retrospective study was conducted on bacteremic UTIs caused by Enterococcus spp. among inpatients. We compared 106 inpatients with bacteremic UTIs caused by Enterococcus spp. vs. a random sample of 100 inpatients with bacteremic UTIs caused by other enterobacteria. RESULTS: A total of 106 inpatients with UTIs caused by Enterococcus spp. were analyzed, 51 of whom had concomitant positive blood cultures. Distribution by species was 83% E. faecalis and 17% E. faecium. The mean Charlson Comorbidity Index score was 5.9±2.9. Upon comparing bacteremic UTIs caused by Enterococcus spp. vs. bacteremic UTIs caused by others enterobacteria, we found the following independent predictors of bacteremic UTI by Enterococcus: male sex, obstructive uropathy, nosocomial infection, cancers of the urinary system, and previous antimicrobial treatment. Overall, inpatient mortality was 16.5% and was associated with a higher Sequential Organ Failure Assessment (SOFA) score (>4); severe comorbidities such as immunosuppression, malignant hemopathy, and nephrostomy; and Enterococcus faecium species and its pattern of resistance to ampicillin or vancomycin (p<0.05). Appropriate empiric antibiotic therapy was not associated with a better prognosis (p>0.05). CONCLUSIONS: Enterococcus spp. is a frequent cause of complicated UTI in patients with risk factors. High mortality secondary to a severe clinical condition and high comorbidity may be sufficient for justifying the implementation of empiric treatment of at-risk patients.

A phase I/II dose-escalation multi-center study to evaluate the safety of infusion of natural killer cells or memory T cells as adoptive therapy in coronavirus pneumonia and/or lymphopenia: RELEASE study protocol.

BACKGROUND: Moderate/severe cases of COVID-19 present a dysregulated immune system with T cell lymphopenia and a hyper-inflammatory state. This is a study protocol of an open-label, multi-center, double-arm, randomized, dose-finding phase I/II clinical trial to evaluate the safety, tolerability, alloreactivity, and efficacy of the administration of allogeneic memory T cells and natural killer (NK) cells in COVID-19 patients with lymphopenia and/or pneumonia. The aim of the study is to determine the safety and the efficacy of the recommended phase 2 dose (RP2D) of this treatment for patients with moderate/severe COVID-19. METHODS: In the phase I trial, 18 patients with COVID-19-related pneumonia and/or lymphopenia with no oxygen requirement or with an oxygen need of ≤ 2.5 liters per minute (lpm) in nasal cannula will be assigned to two arms, based on the biology of the donor and the patient. Treatment of arm A consists of the administration of escalating doses of memory T cells, plus standard of care (SoC). Treatment of arm B consists of the administration of escalating doses of NK cells, plus SoC. In the phase II trial, a total of 182 patients with COVID-19-related pneumonia and/or lymphopenia requiring or not oxygen supplementation but without mechanical ventilation will be allocated to arm A or B, considering HLA typing. Within each arm, they will be randomized in a 1:1 ratio. In arm A, patients will receive SoC or RP2D for memory T cells plus the SoC. In arm B, patients will receive SoC or RP2D for NK cells plus the SoC. DISCUSSION: We hypothesized that SARS-CoV-2-specific memory T-lymphocytes obtained from convalescent donors recovered from COVID-19 can be used as a passive cell immunotherapy to treat pneumonia and lymphopenia in moderate/severe patients. The lymphopenia induced by COVID-19 constitutes a therapeutic window that may facilitate donor engraftment and viral protection until recovery. TRIAL REGISTRATION: ClinicalTrials.gov NCT04578210 . First Posted : October 8, 2020.

Candida bloodstream infection in patients with systemic autoimmune diseases.

OBJECTIVES: To describe the epidemiological, clinical and microbiological characteristics and mortality of patients with Candida bloodstream infection and systemic autoimmune diseases. METHODS: We performed a retrospective multicenter study of candidemia in adults with systemic autoimmune diseases between 2010 and 2016. RESULTS: Among 1040 patients with candidemia, 36 (3.5%) had a systemic autoimmune disease. The most common systemic autoimmune disease was rheumatoid arthritis (27.8%). The most common species was Candida albicans (66.7%). Twenty-two (61.1%) patients received a corticosteroid therapy and nine (25%) received an immunosuppressive therapy at the time of candidemia. The mortality rate was 27.8%. CONCLUSIONS: Systemic autoimmune diseases are not common in patients with candidemia. The unadjusted mortality rate was comparable to other candidemia studies in the general population.

Allostatic load and executive functions in overweight adults.

BACKGROUND/OBJECTIVE: Overweight is linked to inflammatory and neuroendocrine responses potentially prompting deregulations in biological systems harmful to the brain, particularly to the prefrontal cortex. This structure is crucial for executive performance, ultimately supervising behaviour. Thus, in the present work, we aimed to test the relationship between allostatic load increase, a surrogate of chronic physiological stress, and core executive functions, such as cognitive flexibility, inhibitory control, and working memory. METHOD: Forty-seven healthy-weight and 56 overweight volunteers aged from 21 to 40 underwent medical and neuropsychological examination. RESULTS: Overweight subjects exhibited a greater allostatic load index than healthy-weight individuals. Moreover, the allostatic load index was negatively related to inhibitory control. When separated, the link between allostatic load index and cognitive flexibility was more marked in the overweight group. CONCLUSIONS: An overweight status was linked to chronic physiological stress. The inverse relationship between the allostatic load index and cognitive flexibility proved stronger in this group. Set-shifting alterations could sustain rigid-like behaviours and attitudes towards food.

Allostatic load and disordered white matter microstructure in overweight adults.

Overweight and stress are both related to brain structural abnormalities. The allostatic load model states that frequent disruption of homeostasis is inherently linked to oxidative stress and inflammatory responses that in turn can damage the brain. However, the effects of the allostatic load on the central nervous system remain largely unknown. The current study aimed to assess the relationship between the allostatic load and the composition of whole-brain white matter tracts in overweight subjects. Additionally, we have also tested for grey matter changes regarding allostatic load increase. Thirty-one overweight-to-obese adults and 21 lean controls participated in the study. Our results showed that overweight participants presented higher allostatic load indexes. Such increases correlated with lower fractional anisotropy in the inferior fronto-occipital fasciculi and the right anterior corona radiata, as well as with grey matter reductions in the left precentral gyrus, the left lateral occipital gyrus, and the right pars opercularis. These results suggest that an otherwise healthy overweight status is linked to long-term biological changes potentially harmful to the brain.

Neural processing of negative emotional stimuli and the influence of age, sex and task-related characteristics.

Negative emotional stimuli are particularly salient events that receive privileged access to neurocognitive resources. At the neural level, the processing of negative stimuli relies on a set of sensory, limbic, and prefrontal areas. However, controversies exist on how demographic and task-related characteristics modulate this brain pattern. Here, we used activation likelihood estimation (ALE) meta-analysis and replicator dynamics to investigate the processing of negative visual stimuli in healthy adults. Our findings endorse the central role of the amygdala. This result might reflect how this structure modulates perceptual and attentional mechanisms in response to emotional stimuli. Additionally, we characterize how the neural processing of negative visual stimuli is influenced by the demographic factors of age and sex as well as by task-related characteristics like stimulus type, emotion category, and task instruction, with the amygdala showing comparable engagement across different sexes, stimulus types, and task instructions. Our findings practically inform experimentation in the affective neurosciences but also suggest brain circuits for neurobiological investigations of affective symptomatology.

Hepatic vein reconstruction in living donor liver transplantation.

INTRODUCTION: Living donor liver transplantation has emerged as a response to the cadaveric graft shortage, especially for adult recipients. Both right and left liver grafts are widely used, although some technical problems remain unresolved. Herein we describe our technique for reconstruction of the venous outflow in living donor liver transplantation. METHODS: From April 1986 to September 2004, 1012 liver transplantations were performed including 30 living donor liver transplantations between April 1995 and September 2004. We have selected the first 28 cases to ensure a mean follow-up of 21.07 +/- 13.11 months. We transplanted 18 right lobe grafts, 7 left lobe grafts, and 3 left lateral segment grafts. A surgical technique is described herein. RESULTS: No venous outflow obstruction developed among living donor liver transplantation recipients. CONCLUSION: We recommend reconstruction of the hepatic veins in living donor liver transplantation including joining together the three hepatic veins in the recipient to avoid venous outflow obstruction.

Short- and long-term outcomes after living donor liver transplantation.

INTRODUCTION: Living donor liver transplantation was first described as a way to alleviate the organ shortage. Extensive studies of both the prospective donor and the recipient are necessary to ensure successful outcome. In this paper we describe our results in 28 living donor liver transplantations from the perspective of the donor and the recipient. METHODS: A prospective, longitudinal, observational, comparative study was conducted from April 1995 to October 2004, including 28 living donor liver transplantations. RESULTS: After a mean follow-up time of 25.6 +/- 20.58 months, all donors are alive, showing normal liver function tests. All of them have been reincorporated into their normal lives. At the end of the study and after a mean follow-up time of 21.2 +/- 14.3 months, 86.3% of the adult recipients are alive. Actuarial recipient survivals at 6, 12, and 36 months were 86.36%. Actuarial mean survival time was 44 months (95% CI, 37 to 51). At the end of the study, 77.3% of the grafts are functioning. Actuarial graft survivals at 6, 12, and 36 months were 77.27%. Actuarial mean graft survival time was 32 months (95% CI, 25 to 39). The main complications were hepatic artery thrombosis (n = 2) and small for-size syndrome (n = 2). At a mean follow-up of 20.33 +/- 7.74 months, all pediatric recipients are alive. Actuarial recipient survivals at 12 and 36 months were 100% and actuarial graft survivals were 80%. CONCLUSIONS: Living donor liver transplantation may increase the liver graft pool, and therefore reduce waiting list mortality. Nevertheless caution must be deserved to avoid surgical morbidity and mortality in with the donor the recipient.

Preliminary study of choledochocholedochostomy without T tube in liver transplantation: a comparative study.

INTRODUCTION: Biliary anastomosis during liver transplantation can be safely performed using an end-to-end choledochocholedochostomy, with or without a T tube. The objective of this study was to determine whether the insertion of a T tube was related to more postoperative complications. METHODS: Between April 1986 and September 2004, we performed a retrospective, longitudinal, and comparative study of 1012 liver transplantations, including 50 adult recipients with a T tube and a control group with a choledochocholedochostomy without a T tube. RESULTS: T tube insertion was associated with more postoperative complications and worse actuarial survival of both the recipient and graft, though these differences did not reach statistical significance. CONCLUSION: The duct-to-duct biliary anastomosis stented with a T tube tends to be associated with more postoperative complications. Based on this analysis, we recommend the performance of a nonstented anastomosis.