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1.
Transpl Infect Dis ; 24(4): e13872, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35642883

RESUMO

Utilization of Hepatitis B virus (HBV)-infected kidney allografts represents an opportunity to bridge the gap between organ supply and demand. Highly efficacious vaccines and antiviral therapies allow these allografts to be transplanted with negligible risk to the recipient. The purpose of this study was to describe the prophylactic strategies and related clinical outcomes of kidney transplant recipients who received a kidney from an HBV viremic donor. Eight patients received an allograft from an HBV viremic deceased kidney donor between January 1, 2017 and December 4, 2020. All recipients were immune to hepatitis B with a surface antibody titer greater than or equal to 10 mIU/ml (range: 12 - > 1000 mIU/ml). After transplant, 62.5% demonstrated HBV core antibody seroconversion at an average of 47.4 ± 28.5 days post-transplant. Anti-viral prophylaxis was initiated in 87.5% of patients; 62.5% preemptively during the transplant admission (range 1-3 days post-transplant) and 25% following HBcAb seroconversion (range 45-304 days post-transplant). Of the four patients who were started on entecavir preemptively, two subsequently core converted. These two patients had an HBV surface antibody less than 100 mIU/ml at the time of transplant. None of the recipients converted to HBV surface antigen positivity. The average estimated glomerular filtration rate was 41 ± 19 ml/min/1.73m2 , and there were no significant elevations in liver enzymes through one year post-transplant. The use of HBV viremic kidney allografts may represent an additional source of transplant organs; however, more studies are needed to better elucidate the optimal protective strategies for these recipients.


Assuntos
Hepatite B , Transplante de Rim , Hepatite B/tratamento farmacológico , Hepatite B/prevenção & controle , Anticorpos Anti-Hepatite B , Antígenos do Núcleo do Vírus da Hepatite B , Antígenos de Superfície da Hepatite B , Vírus da Hepatite B , Humanos , Transplante de Rim/efeitos adversos , Estudos Retrospectivos , Doadores de Tecidos , Viremia
2.
JAMA Netw Open ; 5(3): e224304, 2022 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-35344045

RESUMO

Importance: Non-Hispanic Black individuals experience a higher burden of COVID-19 than the general population; hence, there is an urgent need to characterize the unique clinical course and outcomes of COVID-19 in Black patients with cancer. Objective: To investigate racial disparities in severity of COVID-19 presentation, clinical complications, and outcomes between Black patients and non-Hispanic White patients with cancer and COVID-19. Design, Setting, and Participants: This retrospective cohort study used data from the COVID-19 and Cancer Consortium registry from March 17, 2020, to November 18, 2020, to examine the clinical characteristics and outcomes of COVID-19 in Black patients with cancer. Data analysis was performed from December 2020 to February 2021. Exposures: Black and White race recorded in patient's electronic health record. Main Outcomes and Measures: An a priori 5-level ordinal scale including hospitalization intensive care unit admission, mechanical ventilation, and all-cause death. Results: Among 3506 included patients (1768 women [50%]; median [IQR] age, 67 [58-77] years), 1068 (30%) were Black and 2438 (70%) were White. Black patients had higher rates of preexisting comorbidities compared with White patients, including obesity (480 Black patients [45%] vs 925 White patients [38%]), diabetes (411 Black patients [38%] vs 574 White patients [24%]), and kidney disease (248 Black patients [23%] vs 392 White patients [16%]). Despite the similar distribution of cancer type, cancer status, and anticancer therapy at the time of COVID-19 diagnosis, Black patients presented with worse illness and had significantly worse COVID-19 severity (unweighted odds ratio, 1.34 [95% CI, 1.15-1.58]; weighted odds ratio, 1.21 [95% CI, 1.11-1.33]). Conclusions and Relevance: These findings suggest that Black patients with cancer experience worse COVID-19 outcomes compared with White patients. Understanding and addressing racial inequities within the causal framework of structural racism is essential to reduce the disproportionate burden of diseases, such as COVID-19 and cancer, in Black patients.


Assuntos
COVID-19 , Neoplasias , Idoso , População Negra , COVID-19/epidemiologia , Teste para COVID-19 , Feminino , Humanos , Neoplasias/epidemiologia , Estudos Retrospectivos
3.
JAMA Netw Open ; 5(1): e2142046, 2022 01 04.
Artigo em Inglês | MEDLINE | ID: mdl-34982158

RESUMO

Importance: The COVID-19 pandemic has had a distinct spatiotemporal pattern in the United States. Patients with cancer are at higher risk of severe complications from COVID-19, but it is not well known whether COVID-19 outcomes in this patient population were associated with geography. Objective: To quantify spatiotemporal variation in COVID-19 outcomes among patients with cancer. Design, Setting, and Participants: This registry-based retrospective cohort study included patients with a historical diagnosis of invasive malignant neoplasm and laboratory-confirmed SARS-CoV-2 infection between March and November 2020. Data were collected from cancer care delivery centers in the United States. Exposures: Patient residence was categorized into 9 US census divisions. Cancer center characteristics included academic or community classification, rural-urban continuum code (RUCC), and social vulnerability index. Main Outcomes and Measures: The primary outcome was 30-day all-cause mortality. The secondary composite outcome consisted of receipt of mechanical ventilation, intensive care unit admission, and all-cause death. Multilevel mixed-effects models estimated associations of center-level and census division-level exposures with outcomes after adjustment for patient-level risk factors and quantified variation in adjusted outcomes across centers, census divisions, and calendar time. Results: Data for 4749 patients (median [IQR] age, 66 [56-76] years; 2439 [51.4%] female individuals, 1079 [22.7%] non-Hispanic Black individuals, and 690 [14.5%] Hispanic individuals) were reported from 83 centers in the Northeast (1564 patients [32.9%]), Midwest (1638 [34.5%]), South (894 [18.8%]), and West (653 [13.8%]). After adjustment for patient characteristics, including month of COVID-19 diagnosis, estimated 30-day mortality rates ranged from 5.2% to 26.6% across centers. Patients from centers located in metropolitan areas with population less than 250 000 (RUCC 3) had lower odds of 30-day mortality compared with patients from centers in metropolitan areas with population at least 1 million (RUCC 1) (adjusted odds ratio [aOR], 0.31; 95% CI, 0.11-0.84). The type of center was not significantly associated with primary or secondary outcomes. There were no statistically significant differences in outcome rates across the 9 census divisions, but adjusted mortality rates significantly improved over time (eg, September to November vs March to May: aOR, 0.32; 95% CI, 0.17-0.58). Conclusions and Relevance: In this registry-based cohort study, significant differences in COVID-19 outcomes across US census divisions were not observed. However, substantial heterogeneity in COVID-19 outcomes across cancer care delivery centers was found. Attention to implementing standardized guidelines for the care of patients with cancer and COVID-19 could improve outcomes for these vulnerable patients.


Assuntos
COVID-19/epidemiologia , Neoplasias/epidemiologia , Pandemias , População Rural , Vulnerabilidade Social , População Urbana , Idoso , Causas de Morte , Censos , Feminino , Instalações de Saúde , Humanos , Unidades de Terapia Intensiva , Masculino , Pessoa de Meia-Idade , Razão de Chances , Sistema de Registros , Respiração Artificial , Estudos Retrospectivos , Fatores de Risco , SARS-CoV-2 , Índice de Gravidade de Doença , Análise Espacial , Estados Unidos/epidemiologia
5.
Clin Transplant ; 35(8): e14311, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33829561

RESUMO

Postoperative pain is a significant source of morbidity in patients undergoing living donor nephrectomy (LDN) and a deterrent for candidates. We implemented a standardized multimodal analgesic regimen, which consists of pharmacist-led pre-procedure pain management education, a combination transversus abdominis plane and rectus sheath block performed by the regional anesthesia team, scheduled acetaminophen and gabapentin, and as-needed opioids. This single-center retrospective study evaluated outcomes between patients undergoing LDN who received a multimodal analgesic regimen and a historical cohort. The multimodal cohort had a significantly shorter length of stay (LOS) (days, mean ± SD: 1.8 ± 0.7 vs. 2.6 ± 0.8; p < .001) and a greater proportion who were discharged on postoperative day (POD) 1 (38.6% vs. 1.5%; p < .001). The total morphine milligram equivalents (MME) that patients received during hospitalization were significantly less in the multimodal cohort on POD 0-2. The outpatient MME prescribed through POD 60 was also significantly less in the multimodal cohort (median [IQR]; 180 [150-188] vs. 225 [150-300]; p < .001). The mean patient-reported pain score (PRPS) was significantly lower in the multimodal cohort on POD 0-2. The maximum PRPS was significantly lower on POD 0 (mean ± SD: 7 ± 2 vs. 8 ± 1, respectively; p = .02). This study suggests that our multimodal regimen significantly reduces LOS, PRPS, and opioid requirements and has the potential to improve the donation experience.


Assuntos
Laparoscopia , Doadores Vivos , Analgésicos/uso terapêutico , Humanos , Nefrectomia , Estudos Retrospectivos
6.
Transplant Proc ; 53(4): 1360-1364, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33888344

RESUMO

Acute myeloid leukemia (AML) is a rare malignancy with increased incidence in the kidney transplantation (KT) population for which immunosuppression has been implicated as a putative cause. The average time interval from KT to AML development is 5 years. We present the case of a 61-year-old man who was found to have peripheral blood blasts on a postoperative day 20 routine blood draw after an uneventful unrelated living donor kidney transplant. He subsequently had a bone marrow biopsy and next-generation sequencing (NGS)-based molecular testing, which demonstrated AML characterized by SMC1A and TET2 mutations. He received induction chemotherapy followed by hematopoietic cell transplantation (HCT) from the kidney donor, who happened to be matched at one haplotype. At 12 months after his HCT and 15 months after his KT, his AML remained in remission, normal renal function was preserved, no active graft-versus-host disease was present, and immunosuppression was tapering. With full donor-derived hematopoietic chimerism, we expect to be able to discontinue immunosuppression shortly, thereby achieving tolerance. The short time interval between KT and development of AML suggests the malignancy was likely present before KT. Modern NGS-based analysis offers a promising method of identifying transplant candidates with unexplained hematologic abnormalities on pre-KT testing who may benefit from formal hematologic evaluation.


Assuntos
Transplante de Rim/efeitos adversos , Leucemia Mieloide Aguda/diagnóstico , Medula Óssea/patologia , Proteínas de Ciclo Celular/genética , Quimerismo , Proteínas Cromossômicas não Histona/genética , Proteínas de Ligação a DNA/genética , Dioxigenases , Doença Enxerto-Hospedeiro/etiologia , Haplótipos , Transplante de Células-Tronco Hematopoéticas , Humanos , Leucemia Mieloide Aguda/etiologia , Leucemia Mieloide Aguda/genética , Leucemia Mieloide Aguda/terapia , Doadores Vivos , Masculino , Pessoa de Meia-Idade , Mutação , Proteínas Proto-Oncogênicas/genética , Indução de Remissão
7.
Surg Open Sci ; 4: 12-18, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33106786

RESUMO

INTRODUCTION: The COVID-19 pandemic has compelled a majority of hospital systems to reduce surgical and procedural volumes in an attempt to preserve resources. Elective surgery and procedures resumption has proven to be a calculated risk between COVID-19 exposure and resource depletion and patient morbidity and mortality from surgical deferral. METHODS: Within a few days of halting elective surgery and procedures, our 7-hospital (2427 in-patient beds, 26,647 inpatient surgeries) healthcare system developed a multidisciplinary Pivot Plan with the primary outcome of a phased resumption of elective surgery and procedures. The plan entailed the integration of our electronic medical record, order entry automatization, perioperative staff utilization, partnering with primary care providers, and a stepwise COVID-19 testing algorithm based on a predetermined hierarchy of case acuity and timeliness of patient care. RESULTS: The Pivot Plan was instituted on May 10, 2020. Since then, 22,624 patients have been tested for COVID-19 in anticipation of an elective surgery and procedures; 140 (0.62%) tested positive for COVID-19 and had their procedure deferred. As our testing capability has increased, we have been able to increase our added elective surgery and procedures capacity from 13 cases per day to 531 cases per day. In turn, we have seen the case volume increase by 52%. CONCLUSION: Our academic healthcare system located in one of the initial COVID-19 hotspots in the United States has successfully resumed elective surgery and procedures in part due to a receptive and supportive culture based upon nimbleness, agility, and rapid integration of multiple resources from a cohort of diverse disciplines applied to the perioperative services workflow.

8.
Transplantation ; 105(6): 1280-1284, 2021 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-32590608

RESUMO

BACKGROUND: Bariatric surgery (BS) may be associated with significant malabsorption and nutritional deficiencies. METHODS: Between March 1987 and January 2017, we performed 922 liver transplants (LT) at our institution; 33 had antecedent BS. We matched the BS cohort to LT recipients without BS (1:3 matching) based on exact matching for gender and cancer and inverse variance matching for age, LT body mass index, MELD score, and transplant date. RESULTS: We analyzed outcomes in 132 LT recipients (33 BS; 99 non-BS). The BS cohort comprised 26 (79%) women with a mean age of 52.4 years. The BS procedures included 20 Roux-en-Y gastric bypass (61%), 6 jejunoileal bypass (18%), 3 gastric band (9%), 2 sleeve gastrectomy (6%), and 1 duodenal switch (3%). The primary indications for LT listing were alcoholic cirrhosis (9; 27%), nonalcoholic steatohepatitis (7; 21%), hepatitis C (8; 24%), and hepatocellular carcinoma (3; 9%). At LT, body mass index for the BS cohort was 29.6, and MELD was 24. Compared with matched controls, BS recipients did not have longer LT length of hospital stay (17.8 versus 15.7 d, P = 0.71), longer intensive care unit length of stay (5.3 versus 4.1 d, P = 0.16), or higher 30-day complication rate (76% versus 85%, P = 0.43). Overall patient survival was similar (1- and 3-y survival was 90.1% and 75.9% for BS; 90.9% and 76.4% for non-BS, P = 0.34). CONCLUSIONS: A history of BS does not portend a deleterious effect on LT outcomes.


Assuntos
Cirurgia Bariátrica , Transplante de Fígado , Adulto , Cirurgia Bariátrica/efeitos adversos , Cirurgia Bariátrica/mortalidade , Bases de Dados Factuais , Feminino , Humanos , Tempo de Internação , Transplante de Fígado/efeitos adversos , Transplante de Fígado/mortalidade , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
9.
Antimicrob Agents Chemother ; 64(12)2020 11 17.
Artigo em Inglês | MEDLINE | ID: mdl-33139277

RESUMO

Intraoperative cell salvage (IOCS) is used to administer autologous blood lost during surgery. We studied antibiotic disposition through an ex vivo IOCS system for vancomycin, piperacillin, ampicillin, and cefazolin. Only 2% ± 1% of antibiotic inoculated in whole blood was recovered in the IOCS reinfusion bag, whereas 97% ± 17% was found in the waste. These observations were confirmed for ampicillin in two patients undergoing liver transplantation. Studies measuring the impact of IOCS on perioperative antibiotic concentrations are warranted.


Assuntos
Antibacterianos , Cefazolina , Antibacterianos/uso terapêutico , Antibioticoprofilaxia , Cefazolina/uso terapêutico , Humanos , Infecção da Ferida Cirúrgica , Vancomicina/uso terapêutico
10.
Transpl Infect Dis ; 22(6): e13367, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32533615

RESUMO

The clinical course and outcomes of immunocompromised patients, such as transplant recipients, with COVID-19 remain unclear. It has been postulated that a substantial portion of the disease burden seems to be mediated by the host immune activation to the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Herein, we present a simultaneous heart-kidney transplant (SHKT) recipient who was hospitalized for the management of respiratory failure from volume overload complicated by failure to thrive, multiple opportunistic infections, and open non-healing wounds in the setting of worsening renal dysfunction weeks prior to the first case of SARS-CoV-2 being detected in the state of Connecticut. After his third endotracheal intubation, routine nucleic acid testing (NAT) for SARS-CoV-2, in anticipation of a planned tracheostomy, was positive. His hemodynamics, respiratory status, and ventilator requirements remained stable without any worsening for 4 weeks until he had a negative NAT test. It is possible that the immunocompromised status of our patient may have prevented significant immune activation leading up to clinically significant cytokine storm that could have resulted in acute respiratory distress syndrome and multisystem organ failure.


Assuntos
COVID-19/imunologia , Cardiomiopatia Dilatada/cirurgia , Transplante de Coração , Hospedeiro Imunocomprometido/imunologia , Imunossupressores/uso terapêutico , Falência Renal Crônica/cirurgia , Transplante de Rim , Desnutrição/imunologia , Infecções Oportunistas/imunologia , Antibióticos Antineoplásicos/efeitos adversos , Vírus BK , Bacteriemia/complicações , Bacteriemia/imunologia , COVID-19/complicações , Teste de Ácido Nucleico para COVID-19 , Cardiomiopatia Dilatada/induzido quimicamente , Cardiomiopatia Dilatada/complicações , Cardiotoxicidade , Doxorrubicina/efeitos adversos , Rejeição de Enxerto/prevenção & controle , Infecções por Bactérias Gram-Positivas/complicações , Infecções por Bactérias Gram-Positivas/imunologia , Humanos , Achados Incidentais , Falência Renal Crônica/complicações , Falência Renal Crônica/terapia , Masculino , Desnutrição/complicações , Staphylococcus aureus Resistente à Meticilina , Pessoa de Meia-Idade , Ácido Micofenólico/uso terapêutico , Infecções Oportunistas/complicações , Infecções por Polyomavirus/complicações , Infecções por Polyomavirus/imunologia , Complicações Pós-Operatórias/terapia , Prednisona/uso terapêutico , Diálise Renal , SARS-CoV-2 , Infecções Estafilocócicas/complicações , Infecções Estafilocócicas/imunologia , Infecção da Ferida Cirúrgica/complicações , Infecção da Ferida Cirúrgica/imunologia , Tacrolimo/uso terapêutico , Traqueostomia , Infecções Tumorais por Vírus/complicações , Infecções Tumorais por Vírus/imunologia , Enterococos Resistentes à Vancomicina , Viremia/complicações , Viremia/imunologia , Desequilíbrio Hidroeletrolítico/complicações , Desequilíbrio Hidroeletrolítico/terapia
11.
CEN Case Rep ; 9(2): 182-185, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-31989454

RESUMO

Spontaneous native kidney rupture (SNKR) is a rare occurrence, commonly associated with underlying renal tumors or acquired renal cystic disease in both the kidney transplant (KT) and non-KT populations. Herein, we present a 65-year-old African American man who experienced a non-malignant SNKR 6 days after a deceased donor KT and underwent emergent native nephrectomy. The patient's hospital course was complicated by thrombocytopenia and refractory hypertension. He experienced delayed graft function and was maintained on hemodialysis until post-operative day 30. This case demonstrates an unusual presentation of SNKR in the immediate post-KT setting and illustrates the clinical decision-making algorithm.


Assuntos
Infecções por HIV/complicações , Transplante de Rim/efeitos adversos , Rim/patologia , Complicações Pós-Operatórias/fisiopatologia , Negro ou Afro-Americano/etnologia , Idoso , Cadáver , Função Retardada do Enxerto/etiologia , Função Retardada do Enxerto/terapia , Humanos , Hipertensão/tratamento farmacológico , Masculino , Nefrectomia/métodos , Diálise Renal/métodos , Ruptura Espontânea/complicações , Ruptura Espontânea/diagnóstico , Ruptura Espontânea/cirurgia , Trombocitopenia/terapia , Doadores de Tecidos , Tomografia Computadorizada por Raios X/métodos , Resultado do Tratamento
12.
Exp Clin Transplant ; 18(1): 48-52, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-30806202

RESUMO

OBJECTIVES: Twice per year, the Scientific Registry of Transplant Recipients provides risk-adjusted center-specific reports of 1- and 3-year outcomes. In addition, the Registry reports 10-year aggregate survival outcomes for kidney transplant recipients. However, in this annual report, no distinction is made between outcomes of patients with a first transplant versus those with retransplants. MATERIALS AND METHODS: We analyzed data from the Scientific Registry of Transplant Recipients between 1992 and 2015 to determine outcomes after a 1st, 2nd, or ≥ 3rd kidney transplant. Recipients were stratified by donor source (living vs deceased) and transplant number, and rates of graft failure, death-censored graft failure, and death with functioning graft were determined. RESULTS: From 1992 to 2015, rates of graft failure and death-censored graft failure at 6 months, 1 year, 3 years, 5 years, and 10 years decreased; however, long-term rates of death with functioning graft were unchanged. Outcomes for 1st and 2nd kidney transplant were better than outcomes for ≥ 3rd transplant. CONCLUSIONS: It would be extremely valuable if the Scientific Registry of Transplant Recipients could present stratified analyses that would account for a host of factors, including organ sequence, which tend to vary by center. The presentation of risk-adjusted outcomes in the annual Registry report could include a more comprehensive assessment of program performance. Such information would be extremely useful for transplant centers, patients, and their support networks, organ procurement organizations, and other transplant stakeholders.


Assuntos
Transplante de Rim , Reoperação , Sobrevivência de Enxerto , Humanos , Transplante de Rim/efeitos adversos , Transplante de Rim/mortalidade , Doadores Vivos , Complicações Pós-Operatórias/etiologia , Sistema de Registros , Reoperação/efeitos adversos , Reoperação/mortalidade , Estudos Retrospectivos , Medição de Risco , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
13.
Pediatr Transplant ; 23(7): e13557, 2019 11.
Artigo em Inglês | MEDLINE | ID: mdl-31407868

RESUMO

A childhood malignancy can rarely progress to ESRD requiring a KT. To date, few reports describe long-term outcomes of pediatric KT recipients with a pretransplant malignancy. Between 1963 and 2015, 884 pediatric (age: 0-17 years old) recipients received 1055 KTs at our institution. KT outcomes were analyzed in children with a pretransplant malignancy. We identified 14 patients who had a pretransplant malignancy prior to KT; the majority were <10 years old at the time of KT. Ten (71%) patients received their grafts from living donors, the majority of which were related to the recipient. Wilms' tumor was the dominant type of pretransplant malignancy, seen in 50% of patients. The other pretransplant malignancy types were EBV-positive lymphoproliferative disorders, non-EBV-positive lymphoma, leukemia, neuroblastoma, soft-tissue sarcoma, and ovarian cancer. Ten of the 14 patients received chemotherapy as part of their pretransplant malignancy treatment. Graft survival at 1, 3, and 5 years was 93%, 83%, and 72%, respectively. Patient survival at 1, 5, and 10 years was 100%, 91%, and 83%, respectively. Six (40%) patients suffered AR following KT; half of them had their first episode of AR within 1 month of KT. Our single-center experience demonstrates that pediatric KT recipients with a previously treated pretransplant malignancy did not exhibit worse outcomes than other pediatric KT patients.


Assuntos
Falência Renal Crônica/cirurgia , Neoplasias Renais/cirurgia , Transplante de Rim , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Rejeição de Enxerto , Sobrevivência de Enxerto , Humanos , Imunossupressores/uso terapêutico , Lactente , Recém-Nascido , Doadores Vivos , Transtornos Linfoproliferativos/cirurgia , Masculino , Recidiva Local de Neoplasia/cirurgia , Resultado do Tratamento , Tumor de Wilms/cirurgia , Adulto Jovem
14.
Transpl Infect Dis ; 21(5): e13144, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31291501

RESUMO

Post-transplant lymphoproliferative disorder (PTLD) is an uncommon, but well-described complication after liver transplantation. Most recently, Hepatitis C virus (HCV) has been implicated in the development of PTLD. A HCV-negative 62-year-old man with autoimmune hepatitis received a HCV nucleic acid amplification test-positive liver graft from a 73-year-old brain-dead donor (D+/R-). After his recovery from the operation, the patient was treated for HCV and achieved an undetectable viral load. He was readmitted 6 months after transplant with a spontaneous perisplenic hematoma, weight loss, failure to thrive, low-grade fevers, and abnormal liver function tests. He had a rapid clinical deterioration and expired shortly after admission. His liver biopsy demonstrated EBV-negative monomorphic B-cell PTLD. Our case is the first to report an aggressive early-onset EBV-negative monomorphic B-cell PTLD in a HCV D+/R- liver transplant. This case illustrates the paucity of knowledge on HCV seroconversion and its involvement in EBV-negative monomorphic B-cell PTLD development.


Assuntos
Linfócitos B/patologia , Hepatite C/transmissão , Transplante de Fígado/efeitos adversos , Transtornos Linfoproliferativos/diagnóstico , Soroconversão , Transplantes/virologia , Infecções por Vírus Epstein-Barr , Herpesvirus Humano 4 , Humanos , Transtornos Linfoproliferativos/virologia , Masculino , Pessoa de Meia-Idade , Doadores de Tecidos , Carga Viral
15.
Am J Surg ; 218(2): 374-379, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-30660322

RESUMO

BACKGROUND: Living donor hepatectomy (LDH) is associated with significant postoperative hypophosphatemia. METHODS: From January 1997 through July 2017, we performed 176 LDH and compared donors who developed liver insufficiency (LI) to those that did not within 30 days of LDH. Using smoothing splines, we constructed a mixed-effects model and assessed receiver operating characteristic curves. RESULTS: Of the 176 donors, 161 were included in our study and 10 (6.2%) developed LI. The cohorts differed in minimum observed phosphate levels (1.77 mg/dL, LI cohort; 2.01 mg/dL No LI cohort) at a median nadir of 1.6 days (38 h) postoperatively (p = 0.003). In the ROC analysis, intraoperative time and postoperative phosphate levels best predicted LI (sensitivity, 90%; specificity, 55.6%). CONCLUSION: Mean postoperative phosphate profiles differ significantly between those patients who develop LI and those who do not in the first 38 h after LDH.


Assuntos
Hepatectomia , Insuficiência Hepática/epidemiologia , Fosfatos/sangue , Complicações Pós-Operatórias/epidemiologia , Coleta de Tecidos e Órgãos , Adulto , Feminino , Humanos , Doadores Vivos , Masculino , Período Pós-Operatório , Valor Preditivo dos Testes , Recuperação de Função Fisiológica , Estudos Retrospectivos
16.
Surgery ; 164(5): 1071-1076, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30149934

RESUMO

BACKGROUND: An elevated body mass index (>30 kg/m2) has been a relative contraindication for living kidney donation; however, such donors have become more common. Given the association between obesity and development of diabetes, hypertension, and end-stage renal disease, there is concern about the long-term health of obese donors. METHODS: Donor and recipient demographics, intraoperative parameters, complications, and short- and long-term outcomes were compared between contemporaneous donors-obese donors (body mass index ≥30 kg/m2) versus nonobese donors (body mass index <30 kg/m2). RESULTS: Between the years 1975 and 2014, we performed 3,752 donor nephrectomies; 656 (17.5%) were obese donors. On univariate analysis, obese donors were more likely to be older (P < .01) and African American (P < .01) and were less likely to be a smoker at the time of donation (P = .01). Estimated glomerular filtration rate at donation was higher in obese donors (115 ± 36 mL/min/1.73m2) versus nonobese donors (97 ± 22 mL/min/1.73m2; P < .001). There was no difference between groups in intraoperative and postoperative complications; but intraoperative time was longer for obese donors (adjusted P < .001). Adjusted postoperative length of stay (LOS) was longer (adjusted P = .01), but after adjustment for donation year, incision type, age, sex, and race, there were no differences in short-term (<30 days) and long-term (>30 days) readmissions. Estimated glomerular filtration rate and rates of end-stage renal disease were not significantly different between donor groups >20 years after donation (P = .71). However, long-term development of diabetes mellitus (adjusted hazard ratio (HR) 3.14; P < .001) and hypertension (adjusted hazard ratio (HR) 1.75; P < .001) was greater among obese donors and both occurred earlier (diabetes mellitus: 12 vs 18 years postnephrectomy; hypertension: 11 vs 15 years). CONCLUSION: Obese donors develop diabetes mellitus and hypertension more frequently and earlier than nonobese donors after donation, raising concerns about increased rates of end-stage renal disease.


Assuntos
Transplante de Rim/efeitos adversos , Doadores Vivos/estatística & dados numéricos , Nefrectomia/efeitos adversos , Obesidade/complicações , Complicações Pós-Operatórias/epidemiologia , Coleta de Tecidos e Órgãos/efeitos adversos , Adulto , Fatores Etários , Índice de Massa Corporal , Diabetes Mellitus/epidemiologia , Diabetes Mellitus/etiologia , Diabetes Mellitus/metabolismo , Diabetes Mellitus/fisiopatologia , Feminino , Taxa de Filtração Glomerular , Humanos , Hipertensão/epidemiologia , Hipertensão/etiologia , Hipertensão/metabolismo , Hipertensão/fisiopatologia , Rim/fisiopatologia , Rim/cirurgia , Transplante de Rim/métodos , Masculino , Pessoa de Meia-Idade , Obesidade/metabolismo , Obesidade/fisiopatologia , Complicações Pós-Operatórias/etiologia , Complicações Pós-Operatórias/metabolismo , Complicações Pós-Operatórias/fisiopatologia , Estudos Prospectivos , Estudos Retrospectivos , Fatores de Tempo , Sítio Doador de Transplante/fisiopatologia
17.
Clin Transplant ; 32(8): e13287, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29923234

RESUMO

With increasing organ demand, living kidney donation from older donors (>60-years-old) has become more common. Between 1975 and 2014, 3752 donor nephrectomies (DN) were performed at University of Minnesota; 167 (4.5%) were >60-years-old Short- and long-term outcomes were compared between contemporaneous >60-years-old and <60-years-old donors. On univariate analysis, >60-years-old were more likely to have had prior abdominal surgery and hypertension; and less likely to smoke. Baseline estimated glomerular filtration rate (eGFR) was lower in >60-years-old (80 ± 16 vs 101 ± 26 mL/min/1.73 m2 ; P < .001). Intraoperative and postoperative complications were similar, except a higher prevalence of <30 day ileus (3% vs 7%; P = .021) and longer postoperative length of stay (LOS) (4.2 vs 4.6 days; P = .005). On multivariate analysis, <30 day ileus and LOS continued to be significantly greater for >60-years-old After >20 years post-DN, systolic blood pressure was significantly higher among >60-years-old (142 vs 125 mm Hg; P < .001) and HTN was diagnosed earlier (9 vs 14 years). After donation, eGFR was significantly lower for >60-years-old but slope of eGFR and rates of end-stage renal disease (ESRD) were not significantly different >20 years post-DN. Thus, kidney donation among carefully selected >60-years-old poses minimal perioperative risks and no added risk of long-term ESRD.


Assuntos
Contraindicações , Transplante de Rim/métodos , Doadores Vivos , Nefrectomia/estatística & dados numéricos , Complicações Pós-Operatórias , Coleta de Tecidos e Órgãos/métodos , Adulto , Fatores Etários , Idoso , Pressão Sanguínea , Comorbidade , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Medição de Risco , Fatores de Risco
18.
Pancreas ; 47(6): 778-782, 2018 07.
Artigo em Inglês | MEDLINE | ID: mdl-29894419

RESUMO

Total pancreatectomy (TP) is a treatment option for patients experiencing chronic pancreatitis (CP) refractory to medical management. Patients who are candidates for TP benefit from islet autotransplantation (IAT), which preserves available ß-cell mass and thereby reduces the risk of brittle diabetes. Malignancy is an absolute contraindication for IAT to prevent the transplantation of occult malignant cells. We present the case of a patient with CP who was approved to undergo TP with IAT (TPIAT) but was intraoperatively discovered to have a pancreatic neuroendocrine tumor. The case illustrates a number of important surgical decision-making considerations for patients undergoing TPIAT and should help guide surgeons should they be presented with this clinical scenario. We stress the importance of vigilance for possible malignancy and to consider an intraoperative biopsy to further investigate unexpected findings that might represent an occult pancreatic malignancy in patients with CP undergoing TPIAT.


Assuntos
Achados Incidentais , Transplante das Ilhotas Pancreáticas/métodos , Tumores Neuroendócrinos/diagnóstico , Pancreatectomia/métodos , Neoplasias Pancreáticas/diagnóstico , Pancreatite Crônica/cirurgia , Adulto , Tomada de Decisões , Feminino , Humanos , Transplante Autólogo
19.
Am J Transplant ; 18(9): 2342-2346, 2018 09.
Artigo em Inglês | MEDLINE | ID: mdl-29790286

RESUMO

Hereditary pancreatitis (HP) is a progressive disease that can manifest in childhood with debilitating, relapsing pain. A total pancreatectomy and islet autotransplant (TPIAT) is a surgical option to relieve chronic pain while preserving the available ß-cell mass. The clinical course of HP is fraught with pancreatitis-related sequelae that can both necessitate and complicate a TPIAT. We describe a child with HP who developed a pancreatic pseudocyst-portal vein (PV) fistula. Active hemorrhage of the perforated PV into the pseudocyst and PV thrombosis complicated the planned TPIAT procedure and, preoperatively, required urgent image-guided stenting. During the TPIAT procedure, the endovascular stent was found to be protruding through the PV into the pseudocyst. Using the autologous splenic vein from the TPIAT specimen, we performed a vascular reconstruction of the perforated PV. This case underscores the need for evaluation of children with HP by a multidisciplinary pancreatic TPIAT care team to best prepare for the potential ramifications of pancreatitis-related complications. It also illustrates a useful vascular reconstruction technique for PV complications.


Assuntos
Transplante das Ilhotas Pancreáticas/métodos , Pancreatectomia/métodos , Pancreatite Crônica/terapia , Procedimentos de Cirurgia Plástica , Veia Porta/cirurgia , Veia Esplênica/cirurgia , Adolescente , Autoenxertos , Humanos , Masculino , Prognóstico
20.
Exp Clin Transplant ; 16(3): 314-320, 2018 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-29633930

RESUMO

OBJECTIVES: Pulmonary nodules are common in patients with hepatocellular carcinoma who are being evaluated for a possible liver transplant. MATERIALS AND METHODS: In this retrospective study, we analyzed the records of liver transplant recipients at our institution with a primary diagnosis of hepatocellular carcinoma who received transplants between 2000 and 2015. All patients had magnetic resonance imaging-confirmed disease within Milan criteria and a concurrent staging chest computed tomography. Patient survival was estimated using Kaplan-Meier methods and compared between pulmonary nodule characteristic groups. A Cox proportional hazards model was constructed for adjusted analysis. RESULTS: Of the 197 liver transplant recipients who met our study inclusion criteria (median follow-up, 40 mo), 115 (58.4%) had a total of 231 pulmonary nodules, with 57 (49.6%) having multiple nodules and 108 (93.9%) having nodules ≤ 1 cm. The presence of pulmonary nodules did not negatively affect patient survival, per our univariate and multivariate analysis, nor did their presence affect their number, location, laterality, shape, edge, density, or the presence of calcifications (P ≥.05). However, pulmonary nodules ≥ 1 cm were associated with decreased overall survival. CONCLUSIONS: In our pretransplant evaluation of patients with hepatocellular carcinoma, pulmonary nodules ≤ 1 cm did not portend worse patient or graft survival posttransplant.


Assuntos
Carcinoma Hepatocelular/secundário , Neoplasias Hepáticas/patologia , Transplante de Fígado , Neoplasias Pulmonares/secundário , Nódulos Pulmonares Múltiplos/secundário , Carcinoma Hepatocelular/diagnóstico por imagem , Carcinoma Hepatocelular/mortalidade , Carcinoma Hepatocelular/cirurgia , Feminino , Humanos , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/diagnóstico por imagem , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/cirurgia , Transplante de Fígado/efeitos adversos , Transplante de Fígado/mortalidade , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/cirurgia , Imageamento por Ressonância Magnética , Masculino , Prontuários Médicos , Pessoa de Meia-Idade , Minnesota/epidemiologia , Nódulos Pulmonares Múltiplos/diagnóstico por imagem , Nódulos Pulmonares Múltiplos/mortalidade , Nódulos Pulmonares Múltiplos/cirurgia , Análise Multivariada , Prevalência , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Tomografia Computadorizada por Raios X , Resultado do Tratamento , Carga Tumoral
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