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1.
Transplant Proc ; 50(9): 2738-2741, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30401387

RESUMEN

BACKGROUND: Ensuring careful selection of heart transplant recipients with pretransplant malignancies (PTM) has been suggested in several retrospective studies. However, cancer survival rates continue to increase and we still lack outcomes data on PTM patients who have undergone heart transplantation (HT) within the Asian region. Herein we report pretransplant characteristics and outcomes among PTM patients with HT. METHODS: A total of 354 patients underwent HT from January 2004 to January 2016. Eight of these patients had a history malignancy that was being treated before transplantation. Posttransplant outcomes and clinical characteristics were collected and possible prognostic factors analyzed. RESULTS: The median age of the patients with a preexisting malignancy was 60 years. The PTM group included 5 males and 3 females, with a median duration of follow-up of 43 months. In this group there were 2 patients with lymphoma after chemotherapy, 1 with colon cancer postoperatively, and 1 was on chemotherapy. In the other 4 patients, nasopharyngeal cancer, thyroid cancer, breast cancer, and endometrial cancer were identified, and each had undergone treatment. Only 1 premalignancy patient, with nasopharyngeal cancer, had disease recurrence. The 5-year overall survival of these patients was 50.0 ± 17.7%, but 5-year survival for those without PTM was 68.7 ± 2.0%. CONCLUSION: PTM was 2.3% in our cohort. PTM is associated with an increased risk of all-cause mortality. Thus, our findings suggest careful consideration when selecting PTM patients for HT.


Asunto(s)
Trasplante de Corazón/mortalidad , Neoplasias/complicaciones , Neoplasias/mortalidad , Adulto , Anciano , Niño , Estudios de Cohortes , Comorbilidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Tasa de Supervivencia
2.
Transplant Proc ; 50(9): 2747-2750, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30401389

RESUMEN

OBJECTIVES: An oversized cardiac allograft may have a negative impact on survival outcomes according to previous studies; however, due to the shortage of pediatric donor hearts, the use of oversized cardiac allografts is sometimes inevitable. In this study, we reported the survival outcomes of pediatric patients in relation with the donor-recipient weight ratio. METHODS: Twenty-eight children, aged 3 months to 17 years, with dilated cardiomyopathy underwent primary cardiac transplantation at the National Taiwan University Hospital between 1995 and 2012. We analyzed these patients according to the donor-recipient weight ratio: group 1 (n = 19) with donor-recipient weight ratio <2.5 (median 1.1, interquartile range 1.0-1.6), and group 2 (n = 9) with donor-recipient weight ratio ≥2.5 (median 3.0, inter-quartile range 2.87-3.5). RESULTS: The 30-day survival rate was 100% for both group 1 and group 2 (P = 1). The survival rates for group 1 and group 2 were 95% vs 100% at 1 year, 84% vs 89% at 5 years, and 73% vs 61% at 10 years. The median survival was 14.4 years vs 12.9 years (P = .6313). CONCLUSION: In this cohort, the use of oversized cardiac allograft in pediatric patients for dilated cardiomyopathy did not have a negative effect on short-term and long-term survival.


Asunto(s)
Aloinjertos/anatomía & histología , Cardiomiopatía Dilatada/cirugía , Trasplante de Corazón/mortalidad , Trasplante de Corazón/métodos , Adolescente , Niño , Preescolar , Estudios de Cohortes , Femenino , Humanos , Lactante , Masculino , Reoperación , Tasa de Supervivencia , Taiwán , Donantes de Tejidos
3.
Transplant Proc ; 50(9): 2751-2755, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30401390

RESUMEN

Renal function after heart transplantation (HTx) typically follows a biphasic pattern and an initial decay within 1 to 2 years. Trajectory of renal function after HTx is less reported, especially in Asia. The aims of this cohort study were to describe the changes in HTx recipients' serum creatinine and estimated glomerular filtration rate (eGFR) levels 5 years following HTx in Taiwan. METHODS: We retrospectively reviewed 5 years of 440 consecutive adult patients (≥ 18 years) who underwent first HTx from June 1987 to December 2014 at the National Taiwan University Hospital. RESULTS: Among 422 participants, they received induction therapy consisting of intravenous rabbit antithymocyte globulin. Here, we illustrated the trends over the years by dividing the subjects into 2 groups based on their immunosuppressive regimen of transplantation (1987-2002 and 2003-2014) The pretransplantation median serum creatinine concentration level was 1.2 mg/dL, rose to 1.4 mg/dL at 3 months after surgery, and remained steady over 5 years after HTx. Pretransplant median eGFR was 67 mL/min/1.73 m2.The median serum creatinine concentration level and eGFR at baseline were all significantly difference than pretransplantation (P > .05). This result has showed that an initial steep decline within 3 months after transplant remained stable 5 years after HTx. CONCLUSION: As renal function deteriorates after HTx, we observed a steep decline in serum creatinine level and glomerular filtration rate within the 3 months after HTx, followed by a slow rate of deterioration over the following months. We found a time-related progressive deterioration in renal function during the 5 years after HTx.


Asunto(s)
Trasplante de Corazón/efectos adversos , Insuficiencia Renal/etiología , Adulto , Estudios de Cohortes , Creatinina/sangre , Femenino , Tasa de Filtración Glomerular , Humanos , Riñón/fisiopatología , Masculino , Persona de Mediana Edad , Insuficiencia Renal/epidemiología , Estudios Retrospectivos , Taiwán
4.
Transplant Proc ; 50(9): 2756-2758, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30401391

RESUMEN

Everolimus (EVR) can be used with calcineurin inhibitors to reduce the risk of renal dysfunction, with similar immunosuppressive effect. In this study, we compared renal function after heart transplantation (HT) under EVR with cyclosporine (CSA) or tacrolimus (TAC). Between 2004 and 2014, EVR with CSA or TAC was used in 117 HT at the National Taiwan University Hospital. After HT, all patients received corticosteroid, EVR (C0 target 3-8 ng/mL) and CSA (C0 blood level 100-200 ng/mL), or TAC (Co blood level 5-10 ng/mL). Renal function was evaluated before HT, every month after HT for up to 1 year, and then every 3 months for up to 2 years. Blood-drug levels of EVR, CSA, and TAC were also monitored simultaneously with renal function. The estimated mean glomerular filtration rate (eGFR) was 76.5 mL/min/1.73 m2 before HT. After HT, the eGFR was 64 mL/min/1.73 m2 at the third month, and 64 mL/min/1.73 m2 at the end of first year. The difference was significant between pre-HT and post-HT (P = .00) during the first year. No significant differences were noted between the CSA and TAC groups. Careful monitoring of blood-drug level and renal function is crucial after heart transplantation. It is concluded that under close monitoring blood-drug level and renal function, it is possible to reach acceptable postoperative renal function with no difference of renal function between EVR plus CSA and EVR plus TAC.


Asunto(s)
Ciclosporina/efectos adversos , Everolimus/efectos adversos , Trasplante de Corazón/métodos , Inmunosupresores/efectos adversos , Insuficiencia Renal/inducido químicamente , Tacrolimus/efectos adversos , Adulto , Inhibidores de la Calcineurina/efectos adversos , Quimioterapia Combinada , Femenino , Tasa de Filtración Glomerular/efectos de los fármacos , Humanos , Masculino , Persona de Mediana Edad , Insuficiencia Renal/epidemiología , Taiwán
5.
Transplant Proc ; 50(9): 2889-2890, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30401418

RESUMEN

We report a heart transplantation in a patient with no heart. A 60-year-old man suffered from severe infective endocarditis, and due to extensive involvement of the myocardium, only minimal myocardium was left after debridement of the necrotic myocardium and aortic annulus. We finally excised the entire heart to eradicate the infection source and employed 2 extracorporeal membrane oxygenations for full life support. The infection was controlled with strong antibiotics. The patient underwent successful heart transplantation 16 days following the excision and the patient fully recovered without any complications.


Asunto(s)
Oxigenación por Membrana Extracorpórea/métodos , Trasplante de Corazón/métodos , Antibacterianos/uso terapéutico , Procedimientos Quirúrgicos Cardíacos , Endocarditis Bacteriana/tratamiento farmacológico , Endocarditis Bacteriana/cirugía , Humanos , Masculino , Persona de Mediana Edad
6.
Transplant Proc ; 48(3): 969-73, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27234781

RESUMEN

BACKGROUND: With advances in immunosuppressive therapy, heart transplantation is currently recommended as the only established surgical treatment for refractory heart failure. However, chronic immunosuppression increases the risk for malignancy. Everolimus (EVR) is a potent mammalian target of rapamycin inhibitor that is used after transplantation and to treat advanced malignancies, as we have done in Taiwan after heart transplantation since 2004. Mycophenolate mofetil (MMF) and EVR are frequently used as cell-cycle inhibitors to optimize post-transplantation outcomes. METHODS: We retrospectively analyzed the characteristics and outcomes of 454 patients who received either MMF (n = 232) or EVR (n = 222) after heart transplantation at the National Taiwan University Hospital from March 1, 1990, to March 1, 2015. Patient characteristics and Kaplan-Meier survival curves were compared between groups. RESULTS: During a median follow-up of 69.2 months, malignancy was diagnosed in 27 patients receiving MMF (n = 23) or EVR (n = 4). There was a significant difference in malignancy risk between groups (9.91% vs 1.80%, P = .001). The most common malignancies were non-Hodgkin lymphoma, skin cancers, and lung squamous cell carcinoma. The 2-year overall survival after malignancy was 50% in the EVR group and 47% in the MMF group (P = .745). CONCLUSIONS: EVR treatment after heart transplant is associated with a lower risk of malignancy than is MMF treatment. The 2-year survival rate after malignancy was similar between EVR and MMF groups.


Asunto(s)
Everolimus/efectos adversos , Trasplante de Corazón/efectos adversos , Terapia de Inmunosupresión/efectos adversos , Linfoma no Hodgkin/inducido químicamente , Ácido Micofenólico/efectos adversos , Complicaciones Posoperatorias/epidemiología , Neoplasias Cutáneas/inducido químicamente , Adolescente , Adulto , Anciano , Animales , Niño , Preescolar , Femenino , Estudios de Seguimiento , Humanos , Inmunosupresores/efectos adversos , Incidencia , Lactante , Estimación de Kaplan-Meier , Linfoma no Hodgkin/epidemiología , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Neoplasias Cutáneas/epidemiología , Tasa de Supervivencia/tendencias , Taiwán/epidemiología , Adulto Joven
7.
Transplant Proc ; 48(3): 951-5, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27234777

RESUMEN

BACKGROUND: Acute fulminant myocarditis with intractable cardiogenic shock is a fatal condition; its only therapeutic option is mechanical circulatory support. The use of mechanical circulatory support, either extracorporeal membrane oxygenation (ECMO) or a ventricular assist device (VAD), serves as a bridge to recovery or as a bridge to transplantation. OBJECTIVES: The aim of this research was to advance our understanding of the outcome of heart transplantation under mechanical support for acute myocarditis. Two groups of patients were compared: those recovered without undergoing transplantation and those who underwent transplantation. METHODS: We reviewed 134 patients experiencing acute myocarditis who required mechanical circulatory support (including ECMO and/or VAD) in our institute between 1994 and 2014. Demographic data, clinical characteristics, support duration, and outcome of individuals were retrospectively analyzed. RESULTS: Patients taking part in this study were aged from 1 month to 70 years, with an average age of 28 years. The transplantation-free survival rate in adults was 54%. A total of 6 adult patients receive a heart transplant under ECMO/left VAD; 2 of these patients died of uncontrolled sepsis after the heart transplantation. The duration of mechanical support ranged from 10 to 130 days (average, 41 days). CONCLUSIONS: Mechanical circulatory support in patients with acute myocarditis proved to be effective. Approximately one half of all adult patients in this study experienced myocardium recovery under mechanical support, with only 5% undergoing a successful heart transplantation. In terms of patients who survived after heart transplantation, the mid-term and long-term outcomes are favorable.


Asunto(s)
Oxigenación por Membrana Extracorpórea/métodos , Predicción , Trasplante de Corazón/métodos , Corazón Auxiliar , Miocarditis/cirugía , Choque Cardiogénico/cirugía , Enfermedad Aguda , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Miocarditis/complicaciones , Estudios Retrospectivos , Choque Cardiogénico/etiología
8.
Transplant Proc ; 48(3): 974-7, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27234782

RESUMEN

BACKGROUND: Malignancy is the leading cause of death in Taiwan. The risk of malignancy is higher in heart transplant recipients than in the general population. We reviewed the malignancy incidence among the patients who underwent heart transplantation (HT) at the National Taiwan University Hospital (NTUH) during the past 28 years. We found that the incidence of malignancy is low in Taiwan and that the pattern of malignancy is different from that in the Western population. METHODS: From July 1987 to March 2015, 518 patients underwent HT at NTUH. Forty-four patients who died within 1 month after transplantation were excluded from this study. Thus, a total of 476 patients were enrolled in this study. There were 393 male and 83 female patients, with a mean age of 45 years at transplantation. The major indications for HT were dilated cardiomyopathy (52%) and ischemic cardiomyopathy (33%). After HT, all patients received triple immunosuppressive therapy, including a calcineurin inhibitor (cyclosporine or tacrolimus), cell-cycle inhibitor (azathioprine, mycophenolate mofetil, or everolimus), and steroid. After 1995, induction with rabbit anti-human thymocyte globulin was routinely performed. Survival was estimated by means of the Kaplan-Meier method. RESULTS: Twenty-seven patients without pre-transplantation malignancy developed malignancies after HT. The median survival time (MST) of these 27 HT patients was 76.8 months. After malignancy was diagnosed, the overall MST was 20.7 months. The 3- and 5-year overall survival rates were 44% and 27%, respectively. Twenty-one patients (77.8%) died, 10 of them because of cancer. The most common malignancy was non-Hodgkin lymphoma (n = 6), followed by skin cancer (including 2 keratoacanthomas, 2 squamous cell carcinomas, and 1 basal cell carcinoma; n = 5) and lung squamous cell carcinoma (n = 3). The univariate analysis identified cancer stage (P = .044) and comorbidity (P = .002) as factors associated with poor malignancy survival. In the multivariate analysis, comorbidity was an independent prognostic factor for greater risk of death because of post-transplantation malignancy (P = .002). CONCLUSIONS: In Taiwan, the risk of malignancy after HT is low (5.7%), as is the incidence of skin cancer. The most common malignancy was non-Hodgkin lymphoma, followed by skin cancer and lung cancer. Comorbidity was an independent factor for overall survival in cancer patients who previously underwent HT.


Asunto(s)
Trasplante de Corazón/efectos adversos , Neoplasias/epidemiología , Adulto , Anciano , Causas de Muerte/tendencias , Femenino , Humanos , Terapia de Inmunosupresión/efectos adversos , Incidencia , Masculino , Persona de Mediana Edad , Neoplasias/etiología , Tasa de Supervivencia/tendencias , Taiwán/epidemiología , Adulto Joven
9.
Transplant Proc ; 48(3): 978-81, 2016 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-27234783

RESUMEN

BACKGROUND: Transplantation and immunosuppressive drugs are major limitations to the success of pregnancy. In 1988, the first pregnancy after a heart transplant was reported, which has given female recipients the hope to give birth. During pregnancy, physiologic changes with increased blood volume and hemodilution may influence blood drug level. CASE REPORT: We reported our experience in monitoring on immunosuppressive drugs for 2 cases. Both of them underwent heart transplantation in 2006 and were 34 and 37 years old at time of pregnancy. For both cases, we frequently monitored the blood level and increased the dosage of immunosuppressive drugs accordingly. Both cases had uneventful pregnancy and delivery to healthy babies at the National Taiwan University Hospital in Taiwan. Their postpartum courses were uneventful as well. CONCLUSIONS: We advocate adjusting the immunosuppressive dosage according to the blood level before pregnancy.


Asunto(s)
Rechazo de Injerto/tratamiento farmacológico , Trasplante de Corazón , Terapia de Inmunosupresión/métodos , Complicaciones Cardiovasculares del Embarazo , Adulto , Femenino , Humanos , Inmunosupresores/uso terapéutico , Recién Nacido , Embarazo , Resultado del Embarazo
10.
Transplant Proc ; 46(3): 911-3, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24767379

RESUMEN

PURPOSE: We reviewed the national results of heart transplantation in Taiwan. METHODS: From July 1987 to December 2012, 1354 patients underwent heart transplantation in 18 qualified heart centers in Taiwan. The transplantation volume and survival rate were reviewed. RESULTS: The median age of recipients was 49 years at surgery, with 37% in the International Society for Heart and Lung Transplantation (ISHLT)-1A, 30% in ISHLT-1B, and 32% in ISHLT-2. The allograft 1-, 3-, 5-, and 10-year survival rates were 78%, 68%, 61%, and 47%, respectively. Mostly difficult recipients were bridged by extracorporeal membrane oxygenation (ECMO) instead of ventricular assist device (VAD). CONCLUSION: The results of heart transplantation in Taiwan are comparable with ISHLT world results. In Taiwan, we use more ECMO than VAD for mechanical circulatory support to bridge critical recipients to heart transplantation.


Asunto(s)
Trasplante de Corazón , Femenino , Humanos , Masculino , Persona de Mediana Edad , Tasa de Supervivencia , Taiwán
11.
Transplant Proc ; 46(3): 920-4, 2014 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-24767381

RESUMEN

PURPOSE: In addition to having a lipid-lowering effect, statins also have an anti-inflammatory effect that may reduce allograft dysfunction by preventing cardiac allograft vasculopathy (CAV) and play an immunomodulatory role. We studied the effect of statins on cardiac allograft survival at the National Taiwan University Hospital (NTUH). MATERIALS AND METHODS: We retrospectively reviewed the patients undergoing heart transplantation at NTUH in the last 6 years. After transplantation, all patients received biochemical monitoring every month and echocardiographic examination regularly at NTUH. Protocol biopsy was performed in all except 18 pediatric patients. All patients received immunosuppressants, including tacrolimus or cyclosporine, everolimus or mycophenolate acid, and prednisolone. They were divided into statin and nonstatin groups according to whether or not a statin was taken. RESULTS: At NTUH, from 2007 to 2012, 168 heart transplantations were performed. The ages of the patients ranged from 6 to 74 years old with male predominance. The etiology was mainly dilated cardiomyopathy (52.4%) and ischemic cardiomyopathy (39.3%), including 7 retransplantations from severe CAV with heart failure. Twenty-three patients (17%) suffered from acute rejection. The overall 1-year actuarial survival rate was 86% ± 2% and the 5-year survival rate was 79% ± 3%. Seventy-eight patients (57.4%) took statins and the statin group has a better 5-year survival rate and freedom from cardiac death survival rate (P < .01). CONCLUSION: Our study showed that the use of statins after transplantation was associated with better survival.


Asunto(s)
Supervivencia de Injerto , Trasplante de Corazón , Inhibidores de Hidroximetilglutaril-CoA Reductasas/administración & dosificación , Adolescente , Adulto , Anciano , Niño , Femenino , Humanos , Inmunosupresores/administración & dosificación , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Tasa de Supervivencia , Adulto Joven
12.
Transplant Proc ; 44(4): 878-80, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22564572

RESUMEN

INTRODUCTION: Ventricular assist devices have benefited patients with end-stage heart failure as a bridge to heart transplantation (HTx). We present our experiment of HTx using extracorporeal membrane oxygenation (ECMO) with Thoratec pneumatic ventricular assist device (TpVAD). METHODS: From May 1996 to June 2011, among 410 patients who underwent HTx 23 required mechanical circulatory support (MCS) with implantation of the TpVAD and 15 (65%) of them received grafts. RESULTS: The 23 patients included 4 female and 19 male patients of age range 10 to 80 years. Eighteen (78%) of them needed ECMO before TpVAD implantation. Twelve (67%) were implanted with a TpVAD double bridge to HTx. The demand for MCS among patients with acute hemodynamic collapse has led to major improvements in the existing systems such as ECMO with double bridge to TpVAD. CONCLUSION: We used ECMO as a rescue procedure for acute hemodynamic deterioration. However, during ECMO support, left ventricular afterload increased. If prolonged support is required, TpVAD might be required: 15 (65%) of patients supported by ECMO with TpVAD needed to a wait a suitable donor. We recommend the application of ECMO for short-term support (within 1 week), and TpVAD as a bridge for medium- or long-term support.


Asunto(s)
Oxigenación por Membrana Extracorpórea , Insuficiencia Cardíaca/terapia , Trasplante de Corazón , Corazón Auxiliar , Donantes de Tejidos/provisión & distribución , Adulto , Anciano , Anciano de 80 o más Años , Niño , Oxigenación por Membrana Extracorpórea/efectos adversos , Oxigenación por Membrana Extracorpórea/mortalidad , Femenino , Insuficiencia Cardíaca/mortalidad , Insuficiencia Cardíaca/fisiopatología , Insuficiencia Cardíaca/cirugía , Trasplante de Corazón/efectos adversos , Trasplante de Corazón/mortalidad , Corazón Auxiliar/efectos adversos , Hemodinámica , Humanos , Masculino , Persona de Mediana Edad , Diseño de Prótesis , Taiwán , Factores de Tiempo , Resultado del Tratamiento , Función Ventricular Izquierda , Listas de Espera , Adulto Joven
13.
Transplant Proc ; 44(4): 881-2, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22564573

RESUMEN

The Taiwan Organ Registry and Sharing Center (TORSC) was established by the Department of Health on June 6, 2002. According to the organ allocation policy, the computer-based organ-matching program began on April 1, 2005. In order to encourage organ donations, "donor hospitals" were given the highest priority. On October 1, 2010, the TORSC implemented a new allocation policy allowing highest priority to the most critically ill patients listed as 1A status. The aim of this study was to investigate the influence of the allocation policy on the likelihood of undergoing a heart transplantation (HTx) as well as the survival after the procedure. Based on the timeline of changes in the organ allocation policy, the patients were divided into three groups: "individual decision," "donor hospital first," and "urgency status first." We observed the waiting time of status 1A patients to decrease and their chance to receive a donor heart increase but their survival rate after HTx to decrease. Further research is needed to define the optimal organ allocation policy.


Asunto(s)
Insuficiencia Cardíaca/cirugía , Trasplante de Corazón , Donantes de Tejidos/provisión & distribución , Obtención de Tejidos y Órganos/organización & administración , Adulto , Enfermedad Crítica , Femenino , Insuficiencia Cardíaca/diagnóstico , Insuficiencia Cardíaca/mortalidad , Trasplante de Corazón/efectos adversos , Trasplante de Corazón/mortalidad , Humanos , Masculino , Persona de Mediana Edad , Política Organizacional , Selección de Paciente , Sistema de Registros , Medición de Riesgo , Factores de Riesgo , Índice de Severidad de la Enfermedad , Análisis de Supervivencia , Tasa de Supervivencia , Taiwán , Factores de Tiempo , Resultado del Tratamiento , Listas de Espera
14.
Transplant Proc ; 44(4): 883-5, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22564574

RESUMEN

OBJECTIVES: There are limited options for mechanical circulatory support to treat end-stage heart failure in pediatric patients. Although extracorporeal membrane oxygenation is commonly used in infants and children, ventricular assist devices (VAD) provide a longer duration of support with fewer complications before recovery or as a bridge to heart transplantation (HTx), as described herein. METHODS: This retrospective chart review of eight patients transplanted from April 2008 to December 2011, after left ventricular assist device (LVAD) implantation due to end-stage heart failure. Their mean age was 12 years (9-15 y) and mean body weight, 48 kg (20-78). All were New York Heart Association functional class IV with mean left ventricular ejection fractions less than 15%. RESULTS: The six patients (75%) received HTx after a mean LVAD support duration of 43.2 days; 2 (25%) died before a suitable heart became available. Their mean duration of LVAD support was 30 days. There were 4 (50%) who experienced clinically evident thromboembolic events: 3 (37.5%) cerebrovascular with 1 mortality and 1 (12.5%) as acute limb ischemia. Transient hemodialysis was performed in 4 (50%). Bloodstream infection identified in 6 (75%) was controlled with intravenous antibiotics. Driveline infection identified in 4 (50%) was treated successfully with local wound dressing changes and intravenous antibiotics. One 9-year-old boy died of rejection at 16 months after transplantation. CONCLUSIONS: Because of the organ shortage, pediatric patients have a low chance to undergo HTx. VAD provides long-term support for children with end-stage heart failure before a suitable heart becomes available. A thromboembolic event remains a major complication influencing their survival.


Asunto(s)
Insuficiencia Cardíaca/terapia , Trasplante de Corazón , Corazón Auxiliar , Donantes de Tejidos/provisión & distribución , Adolescente , Niño , Femenino , Rechazo de Injerto/etiología , Insuficiencia Cardíaca/diagnóstico , Insuficiencia Cardíaca/mortalidad , Insuficiencia Cardíaca/fisiopatología , Insuficiencia Cardíaca/cirugía , Trasplante de Corazón/efectos adversos , Trasplante de Corazón/mortalidad , Corazón Auxiliar/efectos adversos , Humanos , Masculino , Diseño de Prótesis , Estudios Retrospectivos , Taiwán , Tromboembolia/etiología , Factores de Tiempo , Resultado del Tratamiento , Función Ventricular Izquierda , Listas de Espera
15.
Transplant Proc ; 44(4): 894-6, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22564577

RESUMEN

BACKGROUND: Endomyocardial biopsy is the gold standard to identify rejection after heart transplantation. Due to its invasiveness, discomfort, and difficult vascular access, some patients are not willing to accept routine scheduled biopsies years after heart transplantation. The purpose of this study was to identify whether there was a difference in outcomes among the scheduled versus event biopsy groups. METHODS: We studied 411 patients who underwent heart transplantation from 1987 to 2011, reviewing biopsy results and pathology reports. There were 363 patients who followed the scheduled biopsy protocol, and 48 patients who were assigned to the event biopsy group. We extracted data on biopsy results, rejection episodes, rejection types, and survival time. RESULTS: The 2481 reviewed biopsies over 24 years, showed most rejection episodes (86.4%) to occur within 2 years after heart transplantation. The rejection incidence was low (2.1%) at 3 years after transplantation. The major reason for an event biopsy was poor vascular access, such as tiny central vein or congenital disease without a suitable central vein. Event biopsy group patients were younger than schedule biopsy patients (19.7 years old vs 47.6 years old; P < .05). The 10-year survival rates were 64% among the event versus 53% among the scheduled biopsy group (P = .029). The 10-year rates of freedom from rejection were similar. CONCLUSIONS: The rejection rate was low after 3 years; episodes occurred within 2 years. Although the long-term survival in the event group was better, they had a younger man age. The rejection and freedom from rejection rates were similar. As the rejection rate was low at 3 years after transplantation, we suggest that the event principle could be applied for biopsy at 3 years after heart transplantation.


Asunto(s)
Biopsia , Rechazo de Injerto/diagnóstico , Trasplante de Corazón/efectos adversos , Miocardio/patología , Adolescente , Adulto , Niño , Preescolar , Supervivencia sin Enfermedad , Femenino , Rechazo de Injerto/etiología , Rechazo de Injerto/mortalidad , Rechazo de Injerto/patología , Supervivencia de Injerto , Trasplante de Corazón/mortalidad , Humanos , Inmunosupresores/uso terapéutico , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Medición de Riesgo , Factores de Riesgo , Taiwán , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
16.
Transplant Proc ; 44(4): 897-9, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22564578

RESUMEN

UNLABELLED: Cardiac allograft vasculopathy (CAV) remains one of the leading causes of late graft failure and death. Cyclosporine microemulsion Neoral (CsA) had been used in heart transplantation (HTx) recipients. Meanwhile, Everolimus (EVL; Certican, Norvatis Pharmaceuticals; Basel, Switzerland) or mycophenolate mofetil (MMF) have been combined with CsA for maintenance treatment. We compared atherosclerosis in HTx patients showing CAV by intravascular ultrasound (IVUS) in two groups: the CE who received CsA, EVL, and steroid versus the CM group, who received CsA, MMF, and steroid. MATERIALS AND METHODS: We explored IVUS parameters such as plaque thickness (PT), lumen circumference (LC), media adventitial circumference, lumen diameter (LD), and media adventitial diameter to characterize the atherosclerosis among CE versus CM groups. RESULTS: In this study, both the CE and CM groups showed increased plaque thickening in the first year posttransplantation (P < .05). However, MMF significantly reduced LC and LD (P < .05) Upon multivariate linear regression analysis, the CE group seemed to show less effect on the maximal difference in PT between 2 and 12 months after adjusting for age at transplantation and gender (P < .05). There was no acute clinical adverse event of CAV reported in either both group during the follow-up. The atherosclerosis of CAV revealed by LC, LDmax, and LDmin was significantly less among patients treated with CE than CM. CONCLUSION: These results suggested that everolimus-treated patients showed benefits compared with MMF-treated subjects as extrapolated from these IVUS data.


Asunto(s)
Enfermedad de la Arteria Coronaria/diagnóstico por imagen , Enfermedad de la Arteria Coronaria/prevención & control , Trasplante de Corazón/efectos adversos , Inmunosupresores/uso terapéutico , Ácido Micofenólico/análogos & derivados , Sirolimus/análogos & derivados , Ultrasonografía Intervencional , Adulto , Anciano , Enfermedad de la Arteria Coronaria/etiología , Ciclosporina/uso terapéutico , Quimioterapia Combinada , Everolimus , Femenino , Humanos , Modelos Lineales , Masculino , Persona de Mediana Edad , Análisis Multivariante , Ácido Micofenólico/uso terapéutico , Valor Predictivo de las Pruebas , Medición de Riesgo , Factores de Riesgo , Sirolimus/uso terapéutico , Esteroides/uso terapéutico , Taiwán , Factores de Tiempo , Resultado del Tratamiento
17.
Transplant Proc ; 44(4): 900-2, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22564579

RESUMEN

BACKGROUND: The most serious complication after heart transplantation is allograft dysfunction. Patients presenting with compromised hemodynamics show a high incidence of mortality. The most common reason for allograft dysfunction is rejection. We have employed steroid pulse therapy combined with plasmapheresis for hemodynamically compromised patients after heart transplantation. METHODS AND RESULTS: Steroid pulse therapy and plasmapheresis were performed on 35 patients who underwent orthotopic heart transplantation for graft dysfunction. Thus treatment rescued ventricular function and improved the ejection fraction in 77% of patients, among who ever 71.4% showed improved New York Heart Association (NYHA) functional class. CONCLUSIONS: Steroid pulse therapy combined with plasmapheresis improved the cardiac contractility and NYHA functional class of most heart transplant recipients with graft dysfunction.


Asunto(s)
Rechazo de Injerto/terapia , Cardiopatías/terapia , Trasplante de Corazón/efectos adversos , Inmunosupresores/administración & dosificación , Plasmaféresis , Esteroides/administración & dosificación , Terapia Combinada , Rechazo de Injerto/etiología , Rechazo de Injerto/mortalidad , Rechazo de Injerto/fisiopatología , Cardiopatías/etiología , Cardiopatías/mortalidad , Cardiopatías/fisiopatología , Trasplante de Corazón/mortalidad , Hemodinámica , Mortalidad Hospitalaria , Humanos , Contracción Miocárdica , Quimioterapia por Pulso , Volumen Sistólico , Taiwán , Factores de Tiempo , Resultado del Tratamiento , Función Ventricular Izquierda
18.
Transplant Proc ; 44(4): 903-6, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22564580

RESUMEN

BACKGROUND: Heart transplantation is the ultimate treatment for end-stage heart failure. Cardiac sarcoidosis has rarely been reported in heart transplantation worldwide. Their long-term prognosis after heart transplantation is unknown. Herein we have presented clinical and pathological observations among heart transplantation patients with isolated cardiac sarcoidosis. METHODS: From 1987 to 2011, we performed 411 heart transplantations including five patients retrospectively reviewed due to the presence of sarcoidosis and giant-cell cardiomyopathy in the recipient heart. RESULTS: Among the heart transplantations from 2003 to 2011, the four male and one female patients were ages 31 to 40 years. None of them had extra-cardiac sarcoidosis. All five subjects presented with dilated cardiomyopathy with patent coronary arteries. The commonest clinical presentations were atrioventricular block, ventricular arrhythmia, electrocardiographic findings of ST elevations, and poor left ventricular ejection fractions (17%-23%). All patients survived without allograft heart failure to date with the longest survivor at 8 years postoperatively. No recurrence of sarcoidosis has been observed clinically or among the post-heart transplantation endomyocardial biopsies. CONCLUSION: Heart transplantation is a useful treatment for isolated cardiac sarcoidosis patients suffering end-stage heart failure. Often the diagnosis is difficult to establish before heart transplantation despite endomyocardial biopsy. No recurrence of sarcoidosis was observed among the allografted hearts.


Asunto(s)
Cardiomiopatía Dilatada/cirugía , Insuficiencia Cardíaca/cirugía , Trasplante de Corazón , Inmunosupresores/uso terapéutico , Sarcoidosis/cirugía , Adulto , Biopsia , Cardiomiopatía Dilatada/complicaciones , Cardiomiopatía Dilatada/mortalidad , Cardiomiopatía Dilatada/patología , Femenino , Insuficiencia Cardíaca/etiología , Insuficiencia Cardíaca/mortalidad , Trasplante de Corazón/efectos adversos , Trasplante de Corazón/mortalidad , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Sarcoidosis/complicaciones , Sarcoidosis/mortalidad , Sarcoidosis/patología , Taiwán , Factores de Tiempo , Resultado del Tratamiento
19.
Transplant Proc ; 44(4): 907-9, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22564581

RESUMEN

BACKGROUND: Tacrolimus (Tac) in combination with mycophenolate mofetil is widely used after heart transplantation (HT). Everolimus (EVR), a new potent proliferation signal inhibitor can be used with a carcineurin inhibitor to reduce the occurrence of rejection. The purpose of this study was to evaluate the efficacy and safety of Tac combined with EVR in de novo HT. MATERIALS AND METHODS: From January 2009 to April 2011, 33/62 patients who underwent HT were prescribed Tac and EVR as de novo immunosuppression. The main exclusion criteria were poor kidney function (serum creatinine > 2.8 mg/dL), panel-reactive antibodies > 25%, donors > 60 years old, or cold ischemia time > 6 hours. All patients received Tac (C0 blood level 5-10 ng/mL during the first 6 months, then 3-5 ng/mL), EVR (C0 target 3-8 ng/mL), and corticosteroids. After transplantation, routine examinations included echocardiogram and protocol endomyocardial biopsy. RESULTS: There was no operative mortality. The 1- and 3-year actuarial survivals were 95.74% ± 3.49%. One patient who had undergone coronary artery bypass grafting previously and received intra-aortic balloon pumping and extracorporeal membrane oxygenator-assisted cardiopulmonary resuscitation before HT died of Aspergillus septicemia 58 days after HT. No biopsy-proven acute rejection > grade 2R or acute rejection associated with hemodynamic compromise was observed. Hyperlipemia was noted in 16 cases (48.5%), hypertension in 11 (33.3% 5%), and diabetes mellitus in 12 (36.4%). No other severe adverse events were noted. CONCLUSIONS: Concentration-controlled EVR (C0 target 3-8 ng/mL) in combination with Tac achieved good efficacy and safety. The 1- and 3-year actuarial survivals were 95.74% ± 3.49%.


Asunto(s)
Inmunosupresores/uso terapéutico , Sirolimus/análogos & derivados , Tacrolimus/uso terapéutico , Adolescente , Adulto , Anciano , Niño , Diabetes Mellitus/etiología , Quimioterapia Combinada , Everolimus , Femenino , Rechazo de Injerto/prevención & control , Supervivencia de Injerto/efectos de los fármacos , Trasplante de Corazón/efectos adversos , Trasplante de Corazón/inmunología , Trasplante de Corazón/mortalidad , Humanos , Hiperlipidemias/etiología , Hipertensión/etiología , Inmunosupresores/efectos adversos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Sirolimus/efectos adversos , Sirolimus/uso terapéutico , Análisis de Supervivencia , Tacrolimus/efectos adversos , Taiwán , Factores de Tiempo , Resultado del Tratamiento , Adulto Joven
20.
Transplant Proc ; 44(4): 910-2, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22564582

RESUMEN

OBJECTIVE: Hepatitis B virus (HBV) infection is hyperendemic in Taiwan. We have reported the outcome of (1) recipients with hepatitis B surface antigen (HBsAg)-positive; HBsAg-negative recipients who receive donor hearts from HBsAg-positive donors; and treatment with lamivudine of hepatitis B flare-ups after heart transplantation, using case numbers that range from 100 to 200. METHODS: From July 1987 to May 2011, all 412 orthotopic heart transplant recipients and donors underwent routine preoperative screening for hepatitis B virus markers and liver function parameters. Lamivudine was prescribed prophylactically for recipients with elevated serum enzyme levels or an HBV DNA virus load before transplantation, or when there was evidence of hepatitis B flare-up after transplantation. Postoperative HBV markers and liver function parameters were collected over a mean follow-up time of 7.8 years. RESULTS: Thirty-four recipients were HBsAg-positive before heart transplantation, and 23 experiencing HBV reactivation upon follow-up requiring lamivudine treatment. Clinical responses were achieved in all of them: 15 were complete and two, slow partial responses. Twenty-six recipients with an HBV naïve status at the time of heart transplantation, and three patients received donor hearts from an HBsAg-positive donor under perioperative hepatitis B immunoglobulin prophylaxis. HBV infection was successfully prevented in two patients, but the other one contracted HBV hepatitis, which was successfully treated with lamivudine. CONCLUSIONS: HBV reactivation after the heart transplantation was common but usually well controlled with lamivudine treatment. Although posttransplantation liver function deteriorated for a period, there was no HBV infection-related morbidity or mortality. Perioperative hepatitis B immunoglobulin prophylaxis can successfully prevent HBV naïve recipients from infection in some cases, but HBsAg-positive donors should only be considered in high risk situations.


Asunto(s)
Insuficiencia Cardíaca/cirugía , Trasplante de Corazón , Hepatitis B/complicaciones , Adulto , Alanina Transaminasa/sangre , Antivirales/uso terapéutico , Biomarcadores/sangre , ADN Viral/sangre , Selección de Donante , Femenino , Insuficiencia Cardíaca/complicaciones , Trasplante de Corazón/efectos adversos , Hepatitis B/diagnóstico , Hepatitis B/tratamiento farmacológico , Hepatitis B/prevención & control , Antígenos de Superficie de la Hepatitis B/sangre , Virus de la Hepatitis B/genética , Virus de la Hepatitis B/inmunología , Humanos , Inmunoglobulinas/uso terapéutico , Inmunosupresores/uso terapéutico , Lamivudine/uso terapéutico , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Taiwán , Factores de Tiempo , Resultado del Tratamiento , Carga Viral , Activación Viral , Adulto Joven
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