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1.
Intern Med J ; 42(6): 677-82, 2012 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-21790921

RESUMO

BACKGROUND: Overcrowding in emergency departments (ED) around the world is an increasingly serious problem with an adverse impact on both patient flow and patient outcomes. A significant contributing factor to ED overcrowding is possibly due to readmission. Risk factors for readmission in patients admitted from ED are rarely studied, particularly in Asian countries where the length of stay is reportedly longer. METHODS: A retrospective study of patients admitted to general medical wards from the ED of a referral centre in northern Taiwan from November 2009 to April 2010 was conducted. The primary outcome was 30-day hospital readmission and clinical characteristics were analysed for predictors of readmission. RESULTS: Of the recruited 2698 patients, 451 (16.7%) were readmitted within 30 days after discharge. Age, gender, marital status and the activities of daily living (Barthel's score) were not associated with 30-day readmission. Higher Charlson score ((score 2-4) hazard ratio (HR): 1.42, 95% confidence interval (CI): 1.07-1.89; (score >4) HR: 1.93, 95% CI: 1.37-2.73), longer hospital stay ((8-14 days) HR: 1.51, 95% CI: 1.17-1.95; (15-28 days) HR: 1.64, 95% CI: 1.22-2.19; (>28 days) HR: 1.97, 95% CI: 1.43-2.71), and presence of underlying active malignancy (HR: 1.66, 95% CI: 1.27-2.16) and anaemia (HR: 1.26, 95% CI: 1.02-1.55) were independently associated with readmission. CONCLUSION: Medical patients admitted from the ED of a referral centre have a 30-day readmission rate of 16.7%. Post-discharge care should focus on patients with higher Charlson score, longer hospitalisation, anaemia and underlying active malignancy, which are independent predictive factors for 30-day readmission.


Assuntos
Readmissão do Paciente/estatística & dados numéricos , Atividades Cotidianas , Idoso , Idoso de 80 Anos ou mais , Anemia/epidemiologia , Serviço Hospitalar de Emergência , Feminino , Insuficiência Cardíaca/epidemiologia , Humanos , Tempo de Internação , Cirrose Hepática/epidemiologia , Masculino , Pessoa de Meia-Idade , Neoplasias/epidemiologia , Doença Pulmonar Obstrutiva Crônica/epidemiologia , Estudos Retrospectivos , Fatores de Risco , Taiwan
2.
Transplant Proc ; 40(8): 2600-2, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18929812

RESUMO

OBJECTIVE: Tacrolimus, a potent calcineurin inhibitor, is a widely used immunosuppressant. This study sought to determine whether conversion from cyclosporine to tacrolimus afforded benefits on biochemical profiles and graft function among Chinese heart transplantation recipients. METHODS: Forty-nine patients (44 men and 5 women) among 252 heart transplantations performed from 1995 to 2005 were converted from cyclosporine to tacrolimus due to rejection (69%) or to cyclosporine intolerance (31%). The median age of these recipients at transplantation was 46.4 years (range, 5 months to 68 years). Their median body weight was 60 kg (range, 4-84 kg). The allograft median ischemic time was 145 minutes (range, 52-300 minutes). We compared the biochemical markers, rejection episodes and allograft function. RESULTS: The mean duration from heart transplantation to conversion was 419 days. After conversion, the serum bilirubin and alanine transaminase levels were significantly improved at 1 year. The lipid profiles, including triglycerides, total cholesterol, and low-density lipoprotein were nonsignificantly changed. The rejection episodes significantly decreased from 1.53 to 0.15 per patient per year (P < .001). The left ventricular ejection fraction significantly improved from 54.3 +/- 17.9% to 63.2 +/- 10.9% (P < .01). The right atrial pressure significantly decreased from 9.1 +/- 5.8 mmHg to 6.3 +/- 4.3 mm Hg (P < .01). The pulmonary capillary wedge pressure significantly decreased from 15.3 +/- 9.5 mm Hg to 10.8 +/- 5.3 mm Hg (P = .04). CONCLUSION: In heart transplantation, conversion to tacrolimus owing to rejection or cyclosporine intolerance showed better liver profiles with fewer rejection episodes and improved graft function.


Assuntos
Ciclosporina/uso terapêutico , Transplante de Coração/fisiologia , Tacrolimo/uso terapêutico , Transplante Homólogo/fisiologia , Adolescente , Adulto , Idoso , Alanina Transaminase/sangue , Bilirrubina/sangue , Glicemia/metabolismo , Criança , Pré-Escolar , Creatinina/sangue , Feminino , Transplante de Coração/imunologia , Humanos , Imunossupressores/uso terapêutico , Lactente , Lipídeos/sangue , Masculino , Pessoa de Meia-Idade , Transplante Homólogo/imunologia
3.
Transplant Proc ; 40(8): 2854-5, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18929884

RESUMO

We describe a case of complex congenital heart disease treated using balloon septostomy, pulmonary artery banding. Blalock-Taussig shunt, and cardiac resynchronization therapy; however, heart failure developed. A bicaval anastomosis was used to relieve superior vena cava (SVC) obstruction despite possible anastomotic stenosis. The postoperative course was uneventful and the patient recovered rapidly. Thus, we recommend bicaval anastomosis using a longer donor SVC concomitantly performed during heart transplantation to relieve both heart failure and SVC obstruction in pediatric patients.


Assuntos
Cardiopatias Congênitas/cirurgia , Insuficiência Cardíaca/cirurgia , Transplante de Coração , Síndrome da Veia Cava Superior/cirurgia , Adolescente , Anastomose Cirúrgica , Humanos , Masculino , Veia Cava Superior/cirurgia
4.
Transplant Proc ; 40(8): 2623-5, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18929820

RESUMO

After clinical heart transplantation (HT), it is crucial to use appropriate immunosuppressive agents to prevent rejection. The use of basiliximab or rabbit anti-thymocyte globulin (RATG) for induction therapy has significantly reduced the incidence of acute rejection episodes after kidney transplantation. In this study we sought to examine the effects of basiliximab after HT. From June 2006 to July 2007, we performed 43 HT including patients 18-65 years old undergoing primary HT who were included in this study of basiliximab induction (20 mg intravenous [iv] on days 0 and 4). Cyclosporine and everolimus were given with basiliximab induction. All others received RATG induction (1.5-2.5 mg/kg iv infusion on days 0, 1, and 2) followed by cyclosporine or tacrolimus combined with mycophenolate mofetil. All patients underwent the same operative procedure, steroid-tapering protocol, and postoperative care with protocol endomyocardial biopsy. Basiliximab was well-tolerated and easy to use. There was only 1 operative mortality; the patient died of sepsis due to Enterobacter cloacae. All others survived the operation and are alive and in good health with a 2-year survival rate of 92.86%. No severe adverse events were noted during the first postoperative month. No acute rejection > or = grade 2R or rejection associated with hemodynamic compromise was noted during the whole course. Basiliximab as induction immunosuppressant was simple, safe, and effective after HT.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Cardiomiopatia Dilatada/cirurgia , Transplante de Coração/imunologia , Imunossupressores/uso terapêutico , Isquemia Miocárdica/cirurgia , Proteínas Recombinantes de Fusão/uso terapêutico , Adolescente , Adulto , Idoso , Animais , Soro Antilinfocitário/uso terapêutico , Basiliximab , Enterobacter cloacae , Infecções por Enterobacteriaceae/mortalidade , Feminino , Rejeição de Enxerto/imunologia , Rejeição de Enxerto/prevenção & controle , Humanos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias/mortalidade , Coelhos , Estudos Retrospectivos , Sepse/mortalidade
5.
Transplant Proc ; 40(8): 2626-8, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18929821

RESUMO

This study retrospectively investigated the outcomes of cardiac transplantation in a single medical center in Taiwan. From February 1997 to December 2005, 214 orthotopic cardiac transplantations were performed in our institution. Cumulative survival rates were compared by gender, waiting status, blood type, ischemia time, donor gender, age, and cause of brain death. The cumulative survival rates were significant different among recipient waiting status (P = .0026), blood type (P = .0376), and donor age > 40 years (P = .0260). The others parameters seem to not be different from the cumulative survival rate. There was a strong association between donors > 40 years old and increased postoperative mortality. The age of a marginal donor seemed to be > 40 years in this study.


Assuntos
Transplante de Coração/fisiologia , Causas de Morte , Feminino , Transplante de Coração/mortalidade , Humanos , Masculino , Estudos Retrospectivos , Taxa de Sobrevida , Sobreviventes , Taiwan , Fatores de Tempo , Resultado do Tratamento
6.
Transplant Proc ; 40(8): 2634-5, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18929824

RESUMO

Because of a shortage of deceased donors, more than one-third of patients die during the waiting period for transplantation. This study was conducted to analyze the influence of gender on survival after heart transplantation. We retrospectively reviewed the recipients after primary orthotopic heart transplantation. According to gender, patients were divided into four groups: male donor to male recipient, male donor to female recipient, female donor to male recipient, and female donor to female recipient. Kaplan-Meier survival curves were plotted with log-rank tests. Cox regression analysis with dummy variables were used to examine the effects of donor gender, recipient gender, and donor-recipient gender combinations on survival after heart transplantation. The data did not show any significant effect of donor gender, recipient gender, or donor-recipient gender combinations on patient survival, using the methods of log-rank test and Cox regression with dummy variables. Based on our results, we concluded that gender was not an important factor in organ allocation.


Assuntos
Transplante de Coração/mortalidade , Caracteres Sexuais , Feminino , Humanos , Masculino , Análise de Regressão , Estudos Retrospectivos , Taxa de Sobrevida , Sobreviventes , Doadores de Tecidos/estatística & dados numéricos
7.
Transplant Proc ; 40(8): 2636-7, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18929825

RESUMO

With improved immunosuppressive regimens, transplantation techniques, and postoperative care, heart transplantation (HTx) has been established as a definite therapy for end-stage heart disease. Because of a donor shortage, we have accepted marginal individuals. In this study, we identified donor-related factors influencing survival after HTx by retrospective analysis of recipient data after primary HTx from February 2002 to December 2006. The Cox regression model was used to examine the effects of the following variables on survival of 112 heart transplant recipients: demographic data of gender, age, body weight, donor-recipient body weight ratio; history of smoking, alcohol drinking, diabetes mellitus, hypertension, hepatitis B surface antigen, anti-hepatitis C virus antibody; donor condication before transplantation including catecholamine doses, hypotension, cardiopulmonary resuscitation, creatine MB isoenzyme of creatine kinase (CK-MB), tropinin I, and cold ischemic time of the allograft. Catecholamines and smoking showed significant influences on HTx survival. In our series, the percentage of donors receiving inotropic support before donation was 88% (n = 99), and the percentage of donors with a history of smoking was 25% (n = 28). There was no influence of donor status of diabetes, hypertension, or hepatitis B or C infection on postoperative survival. Our results showed that inotropic support of and a history of smoking by the donor were significant factors influencing posttransplant survival.


Assuntos
Transplante de Coração/mortalidade , Transplante de Coração/fisiologia , Doadores de Tecidos/estatística & dados numéricos , Adulto , Morte Encefálica , Intervalos de Confiança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fumar/efeitos adversos , Acidente Vascular Cerebral/mortalidade , Taxa de Sobrevida , Sobreviventes
8.
Transplant Proc ; 40(8): 2607-8, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18929814

RESUMO

OBJECTIVE: In this study, we examined whether cyclosporine was effective when combined with everolimus in clinical heart transplantation (HT). PATIENTS AND METHODS: From August 2004 to July 2007, 108 adult patients underwent primary HT. The main exclusion criteria were: donors > 60 years; cold ischemia times > 6 hours; recipients of multiorgan transplantation or a previous transplantation; and panel-reactive antibodies > or = 25%. The cyclosporine plus everolimus regimen (group CE, n = 32) was suggested first; upon refusal or if the recipient or donor was positive for hepatitis B surface antigen or PCR + hepatitis C infection, then patient was randomly assigned to success cyclosporine plus mycophenolate mofetil (MMF; group CM, n = 24) or tacrolimus plus MMF (group TM, n = 25). All patients underwent similar operative procedures and postoperative care with protocol endomyocardial biopsies. RESULTS: No 30-day mortality was noted in any group. The efficacy failure rates were 3%, 25%, and 16% in groups CE, CM, and TM, respectively (P = .04 between groups CE and CM). The 1-year survivals were 96.7% +/- 18.1%, 89.7% +/- 29.8%, and 81.0% +/- 35.5% for groups CE, CM, and TM, respectively (P = .04 between groups CE and TM). The 3-year survival rates were 91.9% +/- 28.3%, 79.8% +/- 46.0%, and 81.0% +/- 35.5% in groups CE, CM, and TM, respectively. CONCLUSIONS: The 3 immunosuppressive regimens offered good efficacy after HT. The cyclosporine plus everolimus regimen showed a significantly better result with less efficacy failure (compared with cyclosporine plus MMF: 3% vs 25%) and better 1-year survival compared with tacrolimus plus MMF: 96.7% vs 81.0%.


Assuntos
Ciclosporina/uso terapêutico , Transplante de Coração/imunologia , Imunossupressores/uso terapêutico , Ácido Micofenólico/análogos & derivados , Sirolimo/análogos & derivados , Tacrolimo/uso terapêutico , Adulto , Cardiomiopatia Dilatada/cirurgia , Quimioterapia Combinada , Everolimo , Feminino , Rejeição de Enxerto/epidemiologia , Transplante de Coração/mortalidade , Humanos , Masculino , Pessoa de Meia-Idade , Ácido Micofenólico/uso terapêutico , Isquemia Miocárdica/cirurgia , Seleção de Pacientes , Sirolimo/uso terapêutico , Análise de Sobrevida , Sobreviventes , Doadores de Tecidos , Resultado do Tratamento
9.
Transplant Proc ; 40(8): 2611-3, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18929816

RESUMO

Patients receive methylprednisolone pulse therapy (MPT) when acute cardiac rejection occurs. Although the regimen is generally safe and effective, severe complications occasionally develop. From 1997 to 2007, there were 210 cardiac transplantation procedures performed at our hospital. Among these patients, there were 23 episodes of acute rejection treated with MPT, 10 mg/kg/d. Two patients in our series had cardiac arrest within 36 hours after initiating the therapy. Endomyocardial biopsy specimens showed International Society for Heart Transplantation grade 1B allograft rejection in both cases. Emergent intubation and cardiopulmonary resuscitation were performed. Venoarterial extracorporeal membrane oxygenation (ECMO) was used to rescue the patients. The cardiac function in both patients recovered gradually. Left ventricular ejection fraction increased from 16.2% to 47% in one patient and from 27% to 30% in the other patient. One patient was successfully weaned from ECMO after 2 days of support. The other patient was discharged against medical advice because of hypoxia-related brain death after 3 days. Both patients had a history of tachyarrhythmias before initiation of MPT. Although the relationship between mechanisms of cardiac arrest and MPT is uncertain, the risk of cardiac arrest cannot be overlooked when initiating MPT, especially in patients with a history of tachyarrhythmia. Meanwhile, ECMO can serve as a rescue method if cardiac arrest occurs.


Assuntos
Oxigenação por Membrana Extracorpórea , Parada Cardíaca/induzido quimicamente , Transplante de Coração/efeitos adversos , Metilprednisolona/efeitos adversos , Pré-Escolar , Rejeição de Enxerto , Transplante de Coração/patologia , Humanos , Masculino , Metilprednisolona/uso terapêutico , Pessoa de Meia-Idade , Resultado do Tratamento , Disfunção Ventricular Esquerda/diagnóstico
10.
Transplant Proc ; 40(8): 2629-30, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18929822

RESUMO

Mediastinitis is a life-threatening complication among patients undergoing cardiac transplantation. There are conservative and aggressive surgical treatments. From October 1987 to October 2007, we reviewed the clinical records of 315 heart transplantations for those four cases with severe mediastinis needing surgical treatment for demographic data, clinical presentation, treatment, and outcome. Conservative therapy, such as sternal debridement without muscle flap closure and closed local irrigation with drainage, was performed in two cases. The other two patients needed aggressive surgical treatment with muscle flap or omental flap performed. Only one transplant recipient with severe mediastinis had undergone previous sternotomy before cardiac transplantation. The organisms were methicillin-resistant Staphylococcus aureus in three and Aspergillus fumigatus in one case. The one subject who received conservative therapy without a flap died. The other two with muscle flap and omental flap survived. Cardiac recipients survived if there was aggressive surgical treatment for severe mediastinitis. Meanwhile, we recommend prolonged aggressive antibiotic therapy and reduced immunotherapy.


Assuntos
Transplante de Coração/efeitos adversos , Mediastinite/cirurgia , Complicações Pós-Operatórias/cirurgia , Adulto , Aspergilose/cirurgia , Aspergillus fumigatus , Feminino , Transplante de Coração/imunologia , Humanos , Imunossupressores/uso terapêutico , Masculino , Mediastinite/microbiologia , Resistência a Meticilina , Pessoa de Meia-Idade , Estudos Retrospectivos , Infecções Estafilocócicas/cirurgia
11.
Transplant Proc ; 40(8): 2631-3, 2008 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-18929823

RESUMO

The incidence of tuberculosis is slightly higher among heart transplantation cases than in the general population in Taiwan. Tuberculosis shows a high mortality rate ranging from 22% to 31% in transplant recipients. From October 1987 to October 2007, we performed 315 heart transplantations. Clinical records were reviewed for demographic data, clinical presentation, treatment, and outcome. Tuberculosis was diagnosed by cultures of any body sample in association with compatible symptoms and signs. Mortality was related to tuberculosis if there was evidence of active tuberculosis at the time of death and no other etiology accounted for death. Ten patients who had received heart transplants were diagnosed as tuberculosis. There were seven pulmonary lesions and seven extrapulmonary lesions. Treatment consisted of isoniazid, rifampin, ethambutol, pyrazinamide, streptomycin, ciprofloxacin, and levofloxacin. Seven patients completed the antituberculosis treatment: the median treatment duration was 1 year. Three patients developed hepatitis. There was no tuberculosis-related mortality. Ten out of a total of 315 patients (3.17%) represented a tuberculosis rate higher than that reported for the general Taiwan population (67/100,000). This high mortality of infection may be completely treated by a combination of at least three drugs except pyrzinamide because of side effects and tolerance.


Assuntos
Transplante de Coração/efeitos adversos , Complicações Pós-Operatórias/microbiologia , Tuberculose Pulmonar/epidemiologia , Adulto , Idoso , Antituberculosos/uso terapêutico , Quimioterapia Combinada , Feminino , Rejeição de Enxerto/tratamento farmacológico , Rejeição de Enxerto/prevenção & controle , Humanos , Imunossupressores/uso terapêutico , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Taiwan
12.
Transplant Proc ; 38(7): 2032-4, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16979990

RESUMO

OBJECTIVE: This study sought to determine the influence of everolimus on cyclosporine Neoral (CsA) pharmacokinetics over the first 6 months after heart transplantation in Chinese recipients. METHODS: Six de novo cardiac recipients receiving a CsA-everolimus-based immunosuppressive regimen after rabbit antithymoglobulin sequential immuno-induction were compared with six age-matched recipients receiving a CsA-azathioprine-based regimen. We compared CsA 12-hour area-under-curve (AUC) of the first dose (PK-1) and steady state dose (PK-S) at 1 month after transplantation. The CsA trough concentrations (Cmin) were compared over the first 6 months after transplantation. RESULTS: There was no significant difference between the two groups in age, gender, and body weight. With respect to dose-normalized CsA AUC(0-infinity) of PK-1 and dose-normalized CsA AUC(0-12) of PK-S, the difference between the everolimus- and the azathioprine-based regimens was not significant. The dose-normalized CsA trough concentrations (Cmin/dose) were significantly lower in the everolimus-based group than in the azathioprine-based group during the first 5 months after heart transplantation, but the difference was not significant at posttransplantation month 6. CONCLUSIONS: When CsA pharmacokinetic profiles were considered, the CsA dose requirement was not lower in Chinese patients receiving everolimus than that in patients receiving azathioprine. The results differed from reports from Western countries.


Assuntos
Ciclosporina/farmacocinética , Transplante de Coração/imunologia , Imunossupressores/uso terapêutico , Sirolimo/análogos & derivados , Adulto , Azatioprina/uso terapêutico , China , Ciclosporina/sangue , Ciclosporina/uso terapêutico , Quimioterapia Combinada , Everolimo , Feminino , Humanos , Imunossupressores/sangue , Imunossupressores/farmacocinética , Masculino , Pessoa de Meia-Idade , Sirolimo/uso terapêutico
13.
Transplant Proc ; 38(7): 2127-9, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16980020

RESUMO

Ventricular assist devices (VAD) have benefitted patients with end-stage heart failure as a bridge to heart transplantation (HTx). We present our experience with HTx after an extracorporeal membrane oxygenation (ECMO) hybrid with various ventricular assist devices (VAD). From May 1996 to December 2003, mechanical circulatory support with a Biopump VAD was performed in eight patients, HeartMate left VAD in eight patients, and Thoratec VAD in eight patients. Before VAD implantation, 19 patients maintained their circulation with ECMO. Half of the 24 patients were implanted with VAD to await a suitable donor for HTx. We observed that half of the patients supported by ECMO hybrid with various VAD awaited a suitable donor for HTx. In our experience, we recommend the application of ECMO for short-term support within 1 week and the Biopump VAD, Thoractec VAD, or HeartMate VAD for medium-term or long-term support as a bridge to HTx.


Assuntos
Oxigenação por Membrana Extracorpórea , Transplante de Coração/estatística & dados numéricos , Coração Auxiliar , Listas de Espera , Adulto , Idoso , Algoritmos , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Tempo
14.
Transplant Proc ; 38(7): 2132-4, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16980022

RESUMO

UNLABELLED: This study determined cyclosporine Neoral (CsA) pharmacokinetics and the accuracy of a limited sampling strategy to predict the 12-hour CsA area-under-the-curve (AUC) to provide a practical method for more accurate therapeutic drug monitor of CsA among de novo Chinese heart transplant recipients treated with an everolimus-CsA immunosuppressive regimen. METHODS: Blood samples were collected at 0, 0.5, 1, 2, 3, 4, 6, 8, 10, and 12 hours after oral administration of CsA in six de novo heart recipients receiving a CsA, everolimus, and methylprenisolone immunosuppressive regimen after rabbit antithymoglobulin sequential immuno-induction. We analyzed the pharmacokinetics of the first dose (PK-1) and steady state dose (PK-2) at 1 month after transplantation. The accuracy of a single-point sampling method to predict the AUC was generated by linear regression analyses. RESULTS: The t(max) and dose-normalized C(max) of PK-1 and PK-2 were similar. The correlations in single-point blood levels of PK-1 to predict the AUC(0-infinity) were much lower than the corresponding sampling times in PK-2. In PK-2 study, C4 had the best correlation (r(2) = 0.913, P = .003) to predict AUC(0-12). In addition, the trough concentrations, C(0) (r(2) = 0.875, P = .006) and C(12) (r(2) = 0.783, P = .02) also showed good correlations. C2 had insufficient correlation to predict AUC(0-infinity) in PK-1 or AUC(0-12) in the PK-2 study. In conclusion, the absorption of CsA was similar during PK-1 and PK-2. At steady dose, C4 had the best single-point correlation to predict AUC(0-12). Trough blood levels may be more practical in clinical use to monitor CsA.


Assuntos
Ciclosporina/farmacocinética , Transplante de Coração/fisiologia , Adulto , Área Sob a Curva , Ciclosporina/sangue , Ciclosporina/uso terapêutico , Monitoramento de Medicamentos , Quimioterapia Combinada , Everolimo , Humanos , Imunossupressores/sangue , Imunossupressores/farmacocinética , Imunossupressores/uso terapêutico , Pessoa de Meia-Idade , Sirolimo/análogos & derivados , Sirolimo/uso terapêutico , Taiwan
15.
Transplant Proc ; 38(10): 3692-4, 2006 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-17175369

RESUMO

OBJECTIVE: The objective of this study was to report our experience of treating acute humoral rejection with plasmapheresis in heart transplant (HT) recipients. PATIENTS AND METHODS: From May 1996 to December 2005, 238 HTs were performed using therapy with cyclosporine or tacrolimus, azathioprine or mycophenolate mofetil, and prednisolone as well as induction treatment with rabbit anti-human thymocyte globulin. Endomyocardial biopsy for rejection surveillance was performed weekly for the first month, monthly for 3 months, yearly after the first year, and whenever rejection was suspected. Immunofluorescence studies with IgG, IgM, C3, C4, C1q, and HLA-DR were performed routinely on the first month biopsy. After a 2-year trial, immunofluorescence studies were not performed routinely, because no significant findings were observed; thus they were performed only when clinical deterioration, unstable hemodynamic status, or suspicion of rejection occurred on routine echocardiographic examinations. Plasmapheresis with fresh frozen plasma exchanging twice the blood volume of the patients was performed for 5 days. Rescue immunosuppression with methylprednisolone (1 g/d) was delivered for 3 days and the immunosuppressants changed, but no intravenous immunoglobulin was prescribed. RESULTS: Twelve patients suffered biopsy-proven acute humoral rejection at 3 days to 32 months after HT (mean, 9.4 months). Immunofluorescence studies showed positive HLA-DR in 7 patients; IgG in 4 patients; IgM in 1 patient; C3 in 4 patients; C4 in 1 patient; and C1q in 1 patient. One patient who was 3 months after HT showed only C1q positive but was treated with extracorporeal membrane oxygenation and intra-aortic balloon pumping support and died 1-month after plasmapheresis. Another patient who deteriorated on the 3rd postoperative day and died 3 days after plasmapheresis was considered to have vascular rejection by interstitial edema, vacuolated endothelial cells and no pathognomonic clinical features, although there was no positive immunofluorescence result. All other subjects were discharged from the hospital, although 3 required mechanical support during plasmapheresis. Hypotension with hypocalcemia was frequently noted during plasmapheresis. The 1-year survival rate was 75% +/- 11%, and 5-year survival rate, 51% +/- 15%. CONCLUSION: Plasmapheresis with concurrent rescue immunosuppression was an effective treatment for acute humoral rejection in HT even with unstable hemodynamics.


Assuntos
Formação de Anticorpos , Rejeição de Enxerto/imunologia , Rejeição de Enxerto/prevenção & controle , Transplante de Coração/imunologia , Plasmaferese , Sistema ABO de Grupos Sanguíneos , Doença Aguda , Adulto , Biópsia , Terapia Combinada , Feminino , Citometria de Fluxo , Rejeição de Enxerto/patologia , Transplante de Coração/patologia , Humanos , Imunossupressores/uso terapêutico , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos
16.
Transplant Proc ; 38(7): 2135-7, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16980023

RESUMO

Simultaneous heart and kidney transplantation (SHKT) is feasible for combined cardiac and renal failure. Herein we reviewed our 10-year experience in SHKT. Six patients underwent SHKT from June 1995 to December 2004. Their ages ranged from 13 to 63 years old with a mean of 45.5 +/- 15.8 years. They were all men except one girl, who was the youngest (aged 13) who suffered from dilated cardiomyopathy with congestive heart failure and chronic renal failure due to systemic lupus erythematosus. Because of aggravating heart failure, she changed from hemodialysis to peritoneal dialysis. Because of intractable heart failure, she underwent SHKT from a 24-year-old female donor. All received hemodialysis before SHKT. The indications for heart transplantation included dilated cardiomyopathy (n = 3), ischemic cardiomyopathy (n = 1), cardiac allograft vasculopathy (n = 1), and cardiac allograft failure (n = 1). The immunosuppressive protocol and rejection surveillance were these employed for heart transplantation. No operative mortality was noted in this study. The 1-year and 5-year survival rates were the same, 83%. The 10-year survival rate was 55%. No cardiac or renal allograft rejection was noted. No renal allograft loss was noted. There were two late mortalities: the one, who underwent redo heart transplantation for coronary artery vasculopathy died of cardiac allograft failure 1 year after SHKT. The other patient died of massive ischemic necrosis of the intestine at 6 years after SHKT. Our experience showed that SHKT had good short- and long-term results without increasing immunosuppressive doses. End-stage failure of either the heart or the kidney did not preclude heart plus kidney transplantation.


Assuntos
Insuficiência Cardíaca/complicações , Insuficiência Cardíaca/cirurgia , Transplante de Coração , Falência Renal Crônica/complicações , Falência Renal Crônica/cirurgia , Transplante de Rim , Adulto , Feminino , Humanos , Masculino , Diálise Renal , Estudos Retrospectivos , Transplante Homólogo/patologia , Resultado do Tratamento
17.
Transplant Proc ; 38(7): 2138-40, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16980024

RESUMO

Patients with hepatitis B virus (HBV) infection have a higher morbidity and mortality after heart transplantation (HT). HBV infection is endemic in Taiwan. We studied the effect of lamivudine treatment of HBV infection after HT. From July 1987 to July 2005, 252 patients underwent HT. All recipients and donors underwent routine screening of hepatitis B surface antigen (HBsAg), hepatitis B e antigen, antibody to hepatitis B surface antigen, antibody to hepatitis B core antigen, antibody to hepatitis B e antigen, and an alanine aminotransferase (ALT) level before HT. When ALT was two times greater than the upper limit of normal or serum bilirubin was higher than 3 mg/dL in HBsAg-positive patients, HBV-DNA were checked by a branched DNA assay or polymerase chain reaction. When HVB-DNA was greater than 100,000 copies/mL, lamivudine (100 mg per day) was prescribed indefinitely. There were 14 patients under lamivudine treatment after HT, among whom, none suffered severe adverse reactions from lamivudine. Four patients died: one due to end-stage cirrhosis while awaiting liver transplantation at 14 months after HT. Two died of sudden death at 54 months and 138 months after HT. Another died of diffuse B cell lymphoma at 62 months after HT. All the survivors have normal ALT and undetectable HBV-DNA after lamivudine treatment. But the YMDD mutant was detected in two patients. With successful treatment of HBV infection in HT, it is not necessary to exclude HBV infection patients from HT.


Assuntos
Transplante de Coração/fisiologia , Hepatite B/tratamento farmacológico , Lamivudina/uso terapêutico , Adulto , Antivirais/uso terapêutico , Feminino , Seguimentos , Transplante de Coração/mortalidade , Hepatite B/mortalidade , Antígenos de Superfície da Hepatite B/sangue , Hepatite C/complicações , Hepatite C/tratamento farmacológico , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Análise de Sobrevida , Fatores de Tempo , Resultado do Tratamento
18.
Transplant Proc ; 38(7): 2145-6, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16980026

RESUMO

This study described an analysis of severe sepsis among heart transplantation recipients who were treated by sparing all immunosuppressants. Sepsis leading to multiple organ failure (MOF) in heart transplantation has a high mortality. This retrospective study of 190 patients who underwent heart transplantation from 1993 to 2004 included 12 who had severe sepsis with MOF who were treated by sparing all immunosuppressants. Half of them survived after sparing all immunosuppressants with intensive endomyocardial biopsy. Only one case needed pulse therapy for an acute rejection episode. The most common bacterial infectious episodes were caused by methicillin-resistant Staphylococcus aureus (n = 3). All sepsis episodes occurred in the first month after heart transplantation except in one case, which occurred 6 years after heart transplantation. There was a 50% survival rate of heart transplantation recipients who experienced MOF due to severe sepsis and were treated by sparing all immunosuppressants under a program of intensive endomyocardial biopsy.


Assuntos
Transplante de Coração/efeitos adversos , Transplante de Coração/imunologia , Imunossupressores/uso terapêutico , Insuficiência de Múltiplos Órgãos/epidemiologia , Sepse/imunologia , Infecções Bacterianas/imunologia , Candidíase/imunologia , Relação Dose-Resposta a Droga , Transplante de Coração/patologia , Humanos , Imunossupressores/administração & dosagem , Insuficiência de Múltiplos Órgãos/etiologia , Estudos Retrospectivos
19.
Transplant Proc ; 38(7): 2147-8, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16980027

RESUMO

We investigated the short- and long-term results after heart retransplantation in terms of different causes of heart allograft failure. We sought to establish the data of heart retransplantation in Chinese compared with Western counterparts due to differences in heart allograft vasculopathy. From March 1995 to May 2005, eight heart transplantation recipients with allograft failure underwent retransplantation. Heart allograft failure was due to coronary vasculopathy (CAV) in six patients (75%) and acute rejection in two patients (25%). The mean interval to retransplantation was 32 to 84 months (mean 54.3 months). There were five patients who survived after heart retransplantation for CAV and no patient survived after an earlier diagnosis of acute rejection. Heart retransplantation is a feasible method with acceptable long-term survival rate for heart allograft failure. After careful pretransplant evaluation, retransplantation is acceptable. The survival after retransplantation for CAV is notably great than that after acute rejection. Heart retransplantation is the only way for patients who have cardiac allograft failure to achieve long-term survival.


Assuntos
Transplante de Coração/patologia , Reoperação/estatística & dados numéricos , Adulto , Biópsia , China , Rejeição de Enxerto/epidemiologia , Rejeição de Enxerto/cirurgia , Transplante de Coração/mortalidade , Humanos , Masculino , Pessoa de Meia-Idade , Reoperação/mortalidade , Estudos Retrospectivos , Análise de Sobrevida , Taiwan , Transplante Homólogo , Falha de Tratamento
20.
Transplant Proc ; 38(7): 2130-1, 2006 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-16980021

RESUMO

Heart transplantation (HTx) is a treatment for end-stage heart failure or a complex or inoperable congenital defect. The long-term survival and the adequate donor to recipient body weight (D/R BW) ratio remain to be determined. From March 1995 to May 2004, 14 children (6 months-16 years of age) underwent HTx due to underlying diseases of idiopathic dilated cardiomyopathy (n = 10; 71.4%), congenital heart disease (n = 3; 21.4%), and Kawasaki disease (n = 1; 7.1%). Donor-recipient body weight ratio ranged from 0.89 to 3.9. Big heart syndrome was present in one patient when D/R BW ratio was more than 3. Actuarial survival was 92.9% at 5 years after transplantation. Only the one patient who had Kawasaki disease died due to early primary graft failure. HTx is a feasible method with good long-term survival rates for end-stage heart failure or for complex or inoperable congenital defects. After careful pretransplant evaluation, a high D/R BW ratio (more than 3) is acceptable.


Assuntos
Transplante de Coração/fisiologia , Peso Corporal , Criança , Pré-Escolar , Cardiopatias/classificação , Cardiopatias/cirurgia , Transplante de Coração/estatística & dados numéricos , Humanos , Estudos Retrospectivos , Taiwan
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