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1.
J Med Case Rep ; 18(1): 106, 2024 Mar 16.
Artigo em Inglês | MEDLINE | ID: mdl-38491407

RESUMO

BACKGROUND: Vertebral artery injury is a rare condition in trauma settings. In the advanced stages, it causes death. CASE: A 31-year-old Sundanese woman with cerebral edema, C2-C3 anterolisthesis, and Le Fort III fracture after a motorcycle accident was admitted to the emergency room. On the fifth day, she underwent arch bar maxillomandibular application and debridement in general anesthesia with a hyperextended neck position. Unfortunately, her rigid neck collar was removed in the high care unit before surgery. Her condition deteriorated 72 hours after surgery. Digital subtraction angiography revealed a grade 5 bilateral vertebral artery injury due to cervical spine displacement and a grade 4 left internal carotid artery injury with a carotid cavernous fistula (CCF). The patient was declared brain death as not improved cerebral perfusion after CCF coiling. CONCLUSIONS: Brain death due to cerebral hypoperfusion following cerebrovascular injury in this patient could be prevented by early endovascular intervention and cervical immobilisation.


Assuntos
Lesões Encefálicas Traumáticas , Lesões das Artérias Carótidas , Fístula Carótido-Cavernosa , Traumatismos Craniocerebrais , Lesões do Pescoço , Feminino , Humanos , Adulto , Artéria Vertebral/diagnóstico por imagem , Morte Encefálica , Fístula Carótido-Cavernosa/cirurgia , Lesões Encefálicas Traumáticas/complicações , Lesões Encefálicas Traumáticas/diagnóstico por imagem
2.
Ann Hepatol ; 29(3): 101484, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38417629

RESUMO

INTRODUCTION AND OBJECTIVES: Due to organ shortages, liver transplantation (LT) using donation-after-circulatory-death (DCD) grafts has become more common. There is limited and conflicting evidence on LT outcomes using DCD grafts compared to those using donation-after-brain death (DBD) grafts for patients with hepatocellular carcinoma (HCC). We aimed to summarize the current evidence on the outcomes of DCD-LT and DBD-LT in patients with HCC. MATERIALS AND METHODS: Online databases were searched for studies comparing DCD-LT and DBD-LT outcomes in patients with HCC and a meta-analysis was conducted using fixed- or random-effects models. RESULTS: Five studies involving 487 (33.4%) HCC DCD-LT patients and 973 (66.6%) DBD-LT patients were included. The meta-analysis showed comparable 1-year [relative risk (RR)=0.99, 95%CI:0.95 to 1.03, p=0.53] and 3-year [RR=0.99, 95%CI:0.89 to 1.09, p=0.79] recurrence-free survival. The corresponding 1-year [RR=0.98, 95%CI:0.93 to 1.03, p=0.35] and 3-year [RR=0.94, 95%CI:0.87 to 1.01, p=0.08] patient survival and 1-year [RR=0.91, 95%CI:0.71 to 1.16, p=0.43] and 3-year [RR=0.92, 95%CI:0.67 to 1.26, p=0.59] graft survival were also comparable. There were no significant differences between the two cohorts regarding the tumor characteristics, donor/recipient risk factors and the incidence of post-operative complications, including acute rejection, primary non-function, biliary complications and retransplantation. CONCLUSIONS: Based on the current evidence, it has been found that comparable outcomes can be achieved in HCC patients using DCD-LT compared to DBD-LT, particularly when employing good quality graft, strict donor and recipient selection, and effective surgical management. The decision to utilize DCD-LT for HCC patients should be personalized, taking into consideration the risk of post-LT HCC recurrence. (PROSPERO ID: CRD42023445812).


Assuntos
Morte Encefálica , Carcinoma Hepatocelular , Neoplasias Hepáticas , Transplante de Fígado , Humanos , Carcinoma Hepatocelular/cirurgia , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/patologia , Neoplasias Hepáticas/cirurgia , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/patologia , Sobrevivência de Enxerto , Obtenção de Tecidos e Órgãos , Doadores de Tecidos , Resultado do Tratamento , Fatores de Risco
3.
Transplantation ; 108(4): 923-929, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38192028

RESUMO

BACKGROUND: Solid organ transplantation is a cost-effective treatment for end-stage organ failure. Organ donation after brain death is an important source of transplanted organs. Data are limited on the effects of brain injury or donor management on grafts. The consensus view has been that brain death creates a progressively proinflammatory environment. We aimed to investigate time-course changes across a range of cytokines in a donation after brain death cohort of donors who died of intracranial hemorrhage without any other systemic source of inflammation. METHODS: A donor cohort was defined using the UK Quality in Organ Donation biobank. Serum levels of proteins involved in proinflammatory and brain injury pathways (tumor necrosis factor-alpha, interleukin-6, complement C5a, neuron-specific enolase, and glial fibrillary acidic protein) were measured from admission to organ recovery. Moving median analysis was used to combine donor trajectories and delineate a time-course. RESULTS: A cohort of 27 donors with brain death duration between 10 and 30 h was created, with 24 donors contributing to the time-course analysis. We observed no increase in tumor necrosis factor-alpha or interleukin-6 throughout the donor management period. Neuronal injury marker and complement C5a remain high from admission to organ recovery, whereas glial fibrillary acidic protein rises around the confirmation of brain death. CONCLUSIONS: We found no evidence of a progressive rise of proinflammatory mediators with prolonged duration of brain death, questioning the hypothesis of a progressively proinflammatory environment. Furthermore, the proposed approach allows us to study chronological changes and identify biomarkers or target pathways when logistical or ethical considerations limit sample availability.


Assuntos
Lesões Encefálicas , Obtenção de Tecidos e Órgãos , Humanos , Morte Encefálica/patologia , Interleucina-6 , Proteína Glial Fibrilar Ácida , Fator de Necrose Tumoral alfa , Síndrome da Liberação de Citocina , Doadores de Tecidos , Encéfalo/patologia , Complemento C5a
4.
Am J Transplant ; 24(2): 304-307, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37757913

RESUMO

Liver transplantation from elderly donors is expanding due to demand for liver grafts, aging of recipients and donors, and introduction of machine perfusion. We report on a liver transplant from a 100-year-old deceased donor after brain death. The liver was transplanted after the use of hypothermic machine perfusion to a 60-year-old recipient with advanced hepatocellular carcinoma undergoing neoadjuvant immunotherapy. Nine months after the transplant, the patient is alive with a functioning graft and no evidence of acute rejection or tumor recurrence.


Assuntos
Neoplasias Hepáticas , Transplante de Fígado , Idoso de 80 Anos ou mais , Humanos , Idoso , Pessoa de Meia-Idade , Centenários , Morte Encefálica , Sobrevivência de Enxerto , Recidiva Local de Neoplasia , Doadores de Tecidos
5.
J Thorac Cardiovasc Surg ; 167(5): 1845-1860.e12, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-37714368

RESUMO

OBJECTIVE: To quantitate the impact of heart donation after circulatory death (DCD) donor utilization on both waitlist and post-transplant outcomes in the United States. METHODS: The United Network for Organ Sharing database was queried to identify all adult waitlisted and transplanted candidates between October 18, 2018, and December 31, 2022. Waitlisted candidates were stratified according to whether they had been approved for donation after brain death (DBD) offers only or also approved for DCD offers. The cumulative incidence of transplantation was compared between the 2 cohorts. In a post-transplant analysis, 1-year post-transplant survival was compared between unmatched and propensity-score-matched cohorts of DBD and DCD recipients. RESULTS: A total of 14,803 candidates were waitlisted, including 12,287 approved for DBD donors only and 2516 approved for DCD donors. Overall, DCD approval was associated with an increased sub-hazard ratio (HR) for transplantation and a lower sub-HR for delisting owing to death/deterioration after risk adjustment. In a subgroup analysis, candidates with blood type B and status 4 designation received the greatest benefit from DCD approval. A total of 12,238 recipients underwent transplantation, 11,636 with DBD hearts and 602 with DCD hearts. Median waitlist times were significantly shorter for status 3 and status 4 recipients receiving DCD hearts. One-year post-transplant survival was comparable between unmatched and propensity score-matched cohorts of DBD and DCD recipients. CONCLUSIONS: The use of DCD hearts confers a higher probability of transplantation and a lower incidence of death/deterioration while on the waitlist, particularly among certain subpopulations such as status 4 candidates. Importantly, the use of DCD donors results in similar post-transplant survival as DBD donors.


Assuntos
Transplante de Coração , Obtenção de Tecidos e Órgãos , Adulto , Humanos , Morte Encefálica , Doadores de Tecidos , Transplante de Coração/efeitos adversos , Probabilidade , Encéfalo , Estudos Retrospectivos , Sobrevivência de Enxerto
7.
J Thorac Cardiovasc Surg ; 167(1): e6-e21, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37211245

RESUMO

OBJECTIVE: Mitochondrial transplantation has been shown to preserve myocardial function and viability in adult porcine hearts donated after circulatory death (DCD) . Herein, we investigate the efficacy of mitochondrial transplantation for the preservation of myocardial function and viability in neonatal and pediatric porcine DCD heart donation. METHODS: Circulatory death was induced in neonatal and pediatric Yorkshire pigs by cessation of mechanical ventilation. Hearts underwent 20 or 36 minutes of warm ischemia time (WIT), 10 minutes of cold cardioplegic arrest, and then were harvested for ex situ heart perfusion (ESHP). Following 15 minutes of ESHP, hearts received either vehicle (VEH) or vehicle containing isolated autologous mitochondria (MITO). A sham nonischemic group (SHAM) did not undergo WIT, mimicking donation after brain death heart procurement. Hearts underwent 2 hours each of unloaded and loaded ESHP perfusion. RESULTS: Following 4 hours of ESHP perfusion, left ventricle developed pressure, dP/dt max, and fractional shortening were significantly decreased (P < .001) in DCD hearts receiving VEH compared with SHAM hearts. In contrast, DCD hearts receiving MITO exhibited significantly preserved left ventricle developed pressure, dP/dt max, and fractional shortening (P < .001 each vs VEH, not significant vs SHAM). Infarct size was significantly decreased in DCD hearts receiving MITO as compared with VEH (P < .001). Pediatric DCD hearts subjected to extended WIT demonstrated significantly preserved fractional shortening and significantly decreased infarct size with MITO (P < .01 each vs VEH). CONCLUSIONS: Mitochondrial transplantation in neonatal and pediatric pig DCD heart donation significantly enhances the preservation of myocardial function and viability and mitigates against damage secondary to extended WIT.


Assuntos
Transplante de Coração , Humanos , Adulto , Criança , Recém-Nascido , Suínos , Animais , Transplante de Coração/efeitos adversos , Coração , Miocárdio , Morte Encefálica , Perfusão , Infarto , Doadores de Tecidos
8.
Ann Vasc Surg ; 100: 53-59, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38110079

RESUMO

BACKGROUND: Optimal management of traumatic extracranial cerebrovascular injuries (ECVIs) remains undefined. We sought to evaluate the factors that influence management and neurologic outcomes (stroke and brain death) following traumatic ECVI. METHODS: A retrospective review of a single level 1 trauma center's prospectively maintained data registry of patients older than 18 years of age with a diagnosis of ECVI was performed from 2013 to 2019. Injuries limited to the external carotid artery were excluded. Patient demographics, type of injury, timing of presentation, Biffl Classification of Cerebrovascular Injury Grade, Injury Severity Score (ISS), and Abbreviated Injury Scale were documented. Ultimate treatments (medical management and procedural interventions) and brain-related outcomes (stroke and brain death) were recorded. RESULTS: ECVIs were identified in 96 patients. The primary mechanism of injury was blunt trauma (89.5% vs. 10.5%, blunt versus penetrating), with 70 cases (66%) of vertebral artery injury and 37 cases of carotid artery injury. Treatments included vascular intervention (6.5%) and medical management (93.5%). Overall outcomes included ipsilateral ischemic stroke (29%) and brain death (6.5%). In the carotid group, vascular intervention was associated with higher Biffl grades (mean Biffl 3.17 vs. 2.23; P = 0.087) and decreased incidence of brain death (0% vs. 19%, P = 0.006), with no difference seen in ISS scores. Brain death was associated with higher ISS scores (40.29 vs. 24.17, P = 0.01), lower glascow coma score on arrival (3.57 vs. 10.63, P < 0.001), and increased rates of ischemic stroke (71% vs. 30%, P = 0.025). In the vertebral group, neither Biffl grade nor ISS were associated with treatment or outcomes. Regarding the timing of stroke in ECVI, there was no significant difference in the time from presentation to cerebral infarction between the carotid and vertebral artery groups (24.7 hr vs. 21.20 hr, P = 0.739). After this window, 98% of the ECVI cases demonstrated no further aneurysmal degeneration or new neurological deficits beyond the early time period (mean follow-up 9.7 months). CONCLUSIONS: Blunt cerebrovascular injuries should be viewed distinctly in the carotid and vertebral territories. In cases of injury to the carotid artery, Biffl grade and ISS score are associated with surgical intervention and neurologic events, respectively; vertebral artery injuries did not share this association. Neurologic deficits were detected in a similar time frame between the carotid artery and the vertebral artery injury groups and both groups had rare late neurologic events.


Assuntos
Lesões das Artérias Carótidas , AVC Isquêmico , Lesões do Pescoço , Acidente Vascular Cerebral , Ferimentos não Penetrantes , Humanos , Morte Encefálica , Resultado do Tratamento , Lesões das Artérias Carótidas/diagnóstico por imagem , Lesões das Artérias Carótidas/terapia , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/etiologia , Acidente Vascular Cerebral/terapia , Ferimentos não Penetrantes/terapia , Estudos Retrospectivos
9.
Kyobu Geka ; 76(10): 888-893, 2023 Sep.
Artigo em Japonês | MEDLINE | ID: mdl-38056857

RESUMO

Lung transplantation is an established therapy for end-stage lung disease. However, donor shortage remains as a serious issue in Japan. Appropriate brain-dead donor management is the first step toward safe lung transplantation, and the perioperative management begins at the donor hospital. This article overviews the key points of perioperative management in lung transplantation, starting from the donor,the graft, followed by the recipient. Lung transplantation is not just about implanting lungs;it is also about "conditioning" the lungs to be fully functioned after transplantation. In addition to respiratory management, circulatory management, immunosuppressive therapy, and antimicrobial chemotherapy, physiotherapy and nutritional therapy to support them are all indispensable. In other words, it is a treatment including all aspects of surgical managements, which is why it is fascinating.


Assuntos
Transplante de Pulmão , Humanos , Doadores de Tecidos , Pulmão , Morte Encefálica , Japão
10.
Transplant Proc ; 55(10): 2259-2261, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37973526

RESUMO

BACKGROUND: Simultaneous pancreas-kidney transplantation is the optimal treatment for patients with type 1 diabetes and renal failure. The use of pancreas grafts from donation after circulatory death (DCD), using normothermic regional perfusion (NRP), is still marginal worldwide, mainly due to possible additional risks of graft dysfunction and complications compared with grafts from donors after brain death. METHODS: Case series of patients who underwent simultaneous pancreas-kidney transplantation after DCD-NRP between January 2018 and September 2022. This study evaluated early postoperative grafts and survival outcomes. RESULTS: Four patients were included. One patient lost the pancreatic graft due to arterial thrombosis requiring transplantectomy. Another patient required a laparotomy due to hemoperitoneum. Overall, 1-year pancreas and kidney graft survival was 75% and 100%, respectively. One patient developed a lymphoma during the follow-up. CONCLUSION: The use of pancreas grafts from DCD after NRP preservation is safe and feasible. Comparative studies with donors after brain death grafts and larger series are required to confirm the feasibility of DCD-NRP pancreas transplantation.


Assuntos
Transplante de Rim , Obtenção de Tecidos e Órgãos , Humanos , Morte Encefálica , Transplante de Rim/efeitos adversos , Preservação de Órgãos/efeitos adversos , Perfusão , Doadores de Tecidos , Sobrevivência de Enxerto , Pâncreas , Morte , Estudos Retrospectivos
11.
Can J Surg ; 66(6): E561-E571, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38016726

RESUMO

BACKGROUND: Advanced donor age paired with donation after cardiac death (DCD) increases the risk of transplantation, precluding widespread use of grafts from such donors worldwide. Our aim was to analyze outcomes of liver transplantation using grafts from older DCD donors and donation after brain death (DBD) donors. METHODS: Patients who underwent liver transplantation using grafts from deceased donors between January 2016 and December 2021 were included in the study. Short-and long-term outcomes were analyzed for 4 groups of patients: those who received DCD and DBD grafts from younger (< 50 yr) and older (≥ 50 yr) donors. RESULTS: Of the 807 patients included in the analysis, 44.7% (n = 361) of grafts were received from older donors, with grafts for older DCD donors comprising 4.7% of the total cohort (n = 38). Patients who received grafts from older donors had a lower incidence of biliary strictures than those who received grafts from younger donors (7.9% v. 20.0% for DCD donation, p = 0.14, and 4.9% v. 6.8% for DBD donation, p = 0.34), with a significantly lower incidence of ischemic-type biliary strictures in patients who received grafts from older versus younger DCD donors (2.6% v. 18.0%, p = 0.04). There was no difference in 1- and 3-year graft survival rates among patients who received grafts from older and younger DCD donors (92.1% v. 90.8% and 80.2% v. 80.9%, respectively) and those who received grafts from older and younger DBD donors (90.1% v. 93.2% and 85.3% v. 84.4%, respectively) (p = 0.85). Pretransplantation admission to the intensive care unit (hazard ratio [HR] 9.041, p < 0.001) and nonalcoholic steatohepatitis (HR 2.197, p = 0.02) were found to significantly affect survival of grafts from older donors. CONCLUSION: Donor age alone should not be the criterion to determine the acceptability of grafts in liver transplantation. With careful selection criteria, older DCD donors could make a valuable contribution to expanding the liver donor pool, with grafts that produce comparable results to those obtained with standard-criteria grafts.


Assuntos
Transplante de Fígado , Obtenção de Tecidos e Órgãos , Humanos , Constrição Patológica , Estudos Retrospectivos , Doadores Vivos , Doadores de Tecidos , Morte , Morte Encefálica
12.
Hormones (Athens) ; 22(4): 539-546, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37736855

RESUMO

PURPOSE: To identify changes in anterior pituitary gland hormone levels in brain-dead patients and alterations in free triiodothyronine (fT3), free thyroxine, cortisol, testosterone, and estradiol levels. METHODS: Ten postmenopausal women and 22 men with brain death (BD) were included. The first blood sample for determination of hormones (pre-BD) was collected when the clinician observed the first signs of BD. The second blood sample (BD day) was drawn after BD certification. RESULTS: Female patients exhibited lower follicle-stimulating hormone and prolactin levels pre-BD and luteinizing hormone, follicle-stimulating hormone, and prolactin levels on BD day than the age-matched controls. Male patients' sex hormone levels were similar to those of the age-matched controls, except for testosterone levels, which were low in both consecutive measurements. All gonadotropins and prolactin levels were above the tests' lower detection limits (LDLs), except for one male patient with gonadotropin levels below the LDLs of the tests. Estradiol levels in both sexes ranged from normal to elevated. FT3 levels were significantly decreased in the two measurements. Thyroid-stimulating hormone (TSH) levels were low in eight patients and all low TSH levels were above the test's LDL. The remaining patients had normal or elevated TSH levels. The median adrenocorticotropic hormone (ACTH) and cortisol levels were within normal limits. All cortisol and ACTH levels were above the tests' LDLs, except for one patient with ACTH levels below the LDL in both measurements. CONCLUSION: This study supports the hypothesis that the anterior pituitary gland continues to function in the brain-dead state.


Assuntos
Prolactina , Tireotropina , Humanos , Feminino , Masculino , Hidrocortisona , Morte Encefálica , Hormônio Adrenocorticotrópico , Hormônio Foliculoestimulante , Testosterona , Estradiol , Encéfalo
14.
Exp Clin Transplant ; 21(8): 664-670, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37698401

RESUMO

OBJECTIVES: Liver transplant for patients with hepatocellular carcinoma involves 3 main types of donor allografts: donation after brain death, donation after cardiac death, and donation after brain and cardiac death. Data on this topic are limited, and controversies exist regarding liver transplant outcomes in hepatocellular carcinoma patients who have received these allografts. MATERIALS AND METHODS: Data from 490 hepatocellular carcinoma patients who received liver transplant from 2015 to 2021 at the Shulan (Hangzhou) Hospital were retrospectively analyzed. Participants were divided into 3 cohorts according to allograft type: donation after brain death, donation after cardiac death, and donation after brain and cardiac death. Kaplan-Meier and Cox regression methods were used to evaluate patient survival, graft survival, and recurrence-free survival rates after liver transplant. RESULTS: Kaplan-Meier analysis revealed that 3-year patient survival rates were 69.2% for donations after brain death, 69.2% for donations after cardiac death, and 46.6% for donations after brain and cardiac death (P = .42); the 3-year graft survival rates were 53.3% for donations after brain death, 56.4% for donations after cardiac death, and 46.6% for donations after brain and cardiac death (P = .44); and 3-year recurrence-free survival rates were 55% for donations after brain death, 56.6% for donations after cardiac death, and 39.5% for donations after brain and cardiac death (P = .46). Complications were also similar across the 3 cohorts (P = .36). Multivariable analysis showed that intraoperative red blood cell transfusion (hazard ratio: 1.820; P = .042) and early allograft dysfunction (hazard ratio: 3.240; P = .041) were independent risk factors for graft survival. CONCLUSIONS: Similar outcomes can be achieved for hepatocellular carcinoma patients who undergo liver transplant with donations after brain death, donations after cardiac death, or donations after brain and cardiac death allografts, especially when strict donor selection criteria are applied.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Transplante de Fígado , Humanos , Morte Encefálica , Carcinoma Hepatocelular/cirurgia , Transplante de Fígado/efeitos adversos , Estudos Retrospectivos , Neoplasias Hepáticas/cirurgia , Doadores Vivos , Aloenxertos
15.
Front Immunol ; 14: 1178909, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37593740

RESUMO

Introduction: Brain death (BD) and steatosis are both risk factors for organ dysfunction or failure in liver transplantation (LT). Material and methods: Here, we examine the role of interleukin 6 (IL- 6) and IL-10 in LT of both non-steatotic and steatotic liver recovered from donors after brain death (DBDs), as well as the molecular signaling pathways underlying the effects of such cytokines. Results: BD reduced IL-6 levels only in nonsteatotic grafts, and diminished IL-10 levels only in steatotic ones. In both graft types, BD increased IL-1ß, which was associated with hepatic inflammation and damage. IL-6 administration reduced IL-1ß only in non-steatotic grafts and protected them against damage and inflammation. Concordantly, IL-1ß inhibition via treatment with an IL-1 receptor antagonist caused the same benefits in non-steatotic grafts. Treatment with IL-10 decreased IL-1ß only in steatotic grafts and reduced injury and inflammation specifically in this graft type. Blockading the IL-1ß effects also reduced damage and inflammation in steatotic grafts. Also, blockade of IL-1ß action diminished hepatic cAMP in both types of livers, and this was associated with a reduction in liver injury and inflammation, then pointing to IL-1ß regulating cAMP generation under LT and BD conditions. Additionally, the involvement of nitric oxide (NO) in the effects of interleukins was evaluated. Pharmacological inhibition of NO in LT from DBDs prompted even more evident reductions of IL-6 or IL-10 in non-steatotic and steatotic grafts, respectively. This exacerbated the already high levels of IL-1ß seen in LT from DBDs, causing worse damage and inflammation in both graft types. The administration of NO donors to non-steatotic grafts potentiated the beneficial effects of endogenous NO, since it increased IL-6 levels, and reduced IL-1ß, inflammation, and damage. However, treatment with NO donors in steatotic grafts did not modify IL-10 or IL-1ß levels, but induced more injurious effects tan the induction of BD alone, characterized by increased nitrotyrosine, lipid peroxidation, inflammation, and hepatic damage. Conclusion: Our study thus highlights the specificity of new signaling pathways in LT from DBDs: NO-IL-6-IL-1ß in non-steatotic livers and NO-IL-10-IL-1ß in steatotic ones. This opens up new therapeutic targets that could be useful in clinical LT.


Assuntos
Fígado Gorduroso , Óxido Nítrico , Animais , Ratos , Encéfalo , Morte Encefálica , Inflamação , Interleucina-6 , Doadores de Óxido Nítrico
16.
Clin Transplant ; 37(12): e15110, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37615632

RESUMO

Eighty percent of brain-dead (BD) organ donors develop hypotension and are frequently hypovolemic. Fluid resuscitation in a BD donor is controversial. We have previously published our 4-h goal-directed stroke volume (SV)-based fluid resuscitation protocol which significantly decreased time on vasopressors and increased transplanting four or more organs. The SV was measured by pulse-contour analysis (PCA) or an esophageal doppler monitor, both of which are invasive. Thoracic bioreactance (BR) is a non-invasive portable technology that measures SV but has not been studied in BD donors. We performed a randomized prospective comparative study of BR versus PCA technology in our fluid resuscitation protocol in BD donors. Eighty-four donors (53.1%) were randomized to BR and 74 donors to PCA (46.8%). The two groups were well matched based on 24 demographic, social, and initial laboratory factors, without any significant differences between them. There was no difference in the intravenous fluid infused over the 4-h study period [BR 2271 ± 823 vs. PCA 2230 ± 962 mL; p = .77]. There was no difference in the time to wean off vasopressors [BR 108.8 ± 61.8 vs. PCA 150.0 ± 68 min p = .07], nor in the number of donors off vasopressors at the end of the protocol [BR 16 (28.6%) vs. PCA 15 (29.4%); p = .92]. There was no difference in the total number of organs transplanted per donor [BR 3.25 ± 1.77 vs. PCA 3.22 ± 1.75; p = .90], nor in any individual organ transplanted. BR was equivalent to PCA in clinical outcomes and provides a simple, non-invasive, portable technology to monitor fluid resuscitation in organ donors.


Assuntos
Objetivos , Obtenção de Tecidos e Órgãos , Humanos , Encéfalo , Morte Encefálica , Estudos Prospectivos , Volume Sistólico , Doadores de Tecidos
17.
Transplant Proc ; 55(8): 1893-1895, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37652783

RESUMO

We report an unusual case of highly suspected malignant hyperthermia after inducing anesthesia in a brain-dead 18-year-old male patient undergoing organ procurement surgery. The patient was administered desflurane (3 vol%) and rocuronium bromide (50 mg) to induce and maintain general anesthesia. He experienced hypercapnia and tachycardia within 5 minutes of anesthesia induction; however, his body temperature rapidly rose only after 15 minutes. The volatile anesthetic was discontinued, and dantrolene was administered at a low dose (1 mg/kg) to avert possible hepatotoxic effects on the donor liver. Fortunately, the clinical course of the brain-dead donor until the organs were harvested and the liver transplantation outcome of the recipient was favorable. A comprehensive understanding of the pathophysiology of brain death, organ transplantation, and malignant hyperthermia is essential to respond promptly and appropriately. Based on our experience, low-dose dantrolene may be clinically used in brain-dead donors while accounting for its potential hepatotoxic effects.


Assuntos
Transplante de Fígado , Hipertermia Maligna , Obtenção de Tecidos e Órgãos , Masculino , Humanos , Adolescente , Hipertermia Maligna/diagnóstico , Hipertermia Maligna/etiologia , Dantroleno/uso terapêutico , Morte Encefálica , Transplante de Fígado/efeitos adversos , Doadores Vivos , Anestesia Geral/efeitos adversos , Encéfalo
18.
Goiânia; SES-GO; ago. 2023. 1-19 p. graf, tab.(Estatística geral de doação de orgãos e transplantes de orgãos - Goiás).
Monografia em Português | LILACS, CONASS, ColecionaSUS, SES-GO | ID: biblio-1444028

RESUMO

Estatística geral de doação de orgãos e transplantes de orgãos - Goiás tem como objetivo transcrever em números os resultados de todo o trabalho executado pela Gerência de Transplantes em Goiás


General statistics of organ donation and organ transplants - Goiás aims to transcribe in numbers the results of all the work carried out by the Transplant Management in Goiás


Assuntos
Humanos , Masculino , Feminino , Transplantes/estatística & dados numéricos , Doadores de Tecidos , Obtenção de Tecidos e Órgãos/estatística & dados numéricos , Morte Encefálica , Transplante de Medula Óssea/estatística & dados numéricos , Transplante de Córnea/estatística & dados numéricos
20.
Ann Surg ; 278(5): 662-668, 2023 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-37497636

RESUMO

OBJECTIVE: To assess whether end-ischemic hypothermic oxygenated machine perfusion (HOPE) is superior to static cold storage (SCS) in preserving livers procured from donors after brain death (DBD). BACKGROUND: There is increasing evidence of the benefits of HOPE in liver transplantation, but predominantly in the setting of high-risk donors. METHODS: In this randomized clinical trial, livers procured from DBDs were randomly assigned to either end-ischemic dual HOPE for at least 2 hours or SCS (1:3 allocation ratio). The Model for Early Allograft Function (MEAF) was the primary outcome measure. The secondary outcome measure was 90-day morbidity (ClinicalTrials. gov, NCT04812054). RESULTS: Of the 104 liver transplantations included in the study, 26 were assigned to HOPE and 78 to SCS. Mean MEAF was 4.94 and 5.49 in the HOPE and SCS groups ( P =0.24), respectively, with the corresponding rates of MEAF >8 of 3.8% (1/26) and 15.4% (12/78; P =0.18). Median Comprehensive Complication Index was 20.9 after transplantations with HOPE and 21.8 after transplantations with SCS ( P =0.19). Transaminase activity, bilirubin concentration, and international normalized ratio were similar in both groups. In the case of donor risk index >1.70, HOPE was associated with significantly lower mean MEAF (4.92 vs 6.31; P =0.037) and lower median Comprehensive Complication Index (4.35 vs 22.6; P =0.050). No significant differences between HOPE and SCS were observed for lower donor risk index values. CONCLUSION: Routine use of HOPE in DBD liver transplantations does not seem justified as the clinical benefits are limited to high-risk donors.


Assuntos
Transplante de Fígado , Humanos , Morte Encefálica , Preservação de Órgãos , Sobrevivência de Enxerto , Doadores de Tecidos , Fígado , Perfusão
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