首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
Optimal timing for consideration of lung transplantation remains unknown. This study examined survival in patients with end-stage lung disease awaiting transplantation. Primary disease group and relevant indicators were evaluated. Ninety-three patients who met selection criteria for lung transplantation were included in this retrospective review. Of this total, 31% underwent transplantation, 38% remain waiting, and 31% died. Results demonstrate that the six-month actuarial survival rate was 89% for Eisenmenger's syndrome, 81% for emphysema, 74% for cystic fibrosis, 60% for primary pulmonary hypertension, and 38% for interstitial lung disease. Parameters found to be significant included a higher mean right atrial pressure in primary pulmonary hypertension patients who died awaiting transplantation, and lower forced expiratory volume in one second and forced vital capacity measurements in cystic fibrosis patients who died awaiting transplantation. We conclude that primary disease significantly affects survival in candidates awaiting transplantation. Reliable indicators predictive of survival are not available. Earlier referral for consideration of lung transplantation is recommended.  相似文献   

2.
Liver transplantation continues to be successful and effective treatment for acute and chronic liver failure, and many important lessons have been learned. The development of innovative operative techniques has much reduced the waiting list mortality rate and has extended transplantation to younger and sicker children and to those with functionally normal livers who may benefit from auxiliary liver transplantation. The incidence and range of postoperative complications have improved with increased medical and surgical expertise. As information on long-term outcome for liver transplantation is gained, it is clear that many children will benefit from early elective liver transplantation before the development of significant growth or psychosocial retardation. Early transplantation is also indicated in children with cirrhosis and intrapulmonary shunting or cystic fibrosis with moderate lung disease. During the same period, evolving medical therapy has altered the natural history, patient selection, and timing of transplantation in children with tyrosinaemia type I, primary bile acid disorders, neonatal haemochromatosis, and potentially, cystic fibrosis. It is now clear that children with significant multisystem disease, such as mitochondrial disorders or severe systemic oxalosis, are no longer suitable candidates for liver transplantation. The successful development of liver transplantation has brought good quality life to many children and their families. There are still many lessons to learn and there are future challenges such as the ever-increasing problems of donor scarcity and the search for potent but less toxic immunosuppressive agents.  相似文献   

3.
Over a period of years, insulin-dependent diabetes and respiratory insufficiency developed in a 35-year-old patient with end-stage cystic fibrosis. After waiting more than 4 years while receiving maintenance treatment with continuous liquid O2 and nasal ventilation, the patient underwent double-lung and pancreatic islet cell transplantation. Subsequently, the patient has enjoyed a normal life with full employment and much better control of his diabetes. Pancreatic islet cell transplantation is a simple and innocuous technique easily added to the end of lung transplantation. These new pancreatic cells, although locally injected, are still secreting more than 2 years later as assessed by repeated C-peptide measurements.  相似文献   

4.
OBJECTIVE: This paper was undertaken to review the experience at our institution with bilateral sequential lung transplantation for cystic fibrosis. METHODS: Since 1989, 103 bilateral sequential lung transplants for cystic fibrosis have been performed (46 pediatric, 48 adult, 9 redo); the mean age was 21 +/- 10 years. Cardiopulmonary bypass was used in all but one pediatric (age <18) transplant, and in 15% of adults. RESULTS: Hospital mortality was 4.9%, with 80% of early deaths related to infection. Bronchial anastomotic complications occurred with equal frequency in the pediatric and the adult populations (7.3%). One- and 3-year actuarial survival are 84% and 61%, respectively (no significant difference between pediatric and adult age groups; average follow-up 2.1 +/- 1.6 years). Mean forced expiratory volume in 1 second increased from 25% +/- 9% before transplantation to 79% +/- 35% 1 year after transplantation. Acute rejection occurred 1.7 times per patient-year, with most episodes taking place within the first 6 months after transplantation. The need for treatment of lower respiratory tract infections occurred 1.2 times per patient in the first year after transplantation. Actuarial freedom from bronchiolitis obliterans was 63% at 2 years and 43% at 3 years. Redo transplantation was performed only in the pediatric population and was associated with an early mortality of 33%. Eight living donor transplants (four primary transplants, four redo transplants) were performed with an early survival of 87.5%. CONCLUSION: Patients with end-stage cystic fibrosis can undergo bilateral lung transplantation with morbidity and mortality comparable to that seen in pulmonary transplantation for other disease entities.  相似文献   

5.
TL Spray  GB Mallory  CB Canter  CB Huddleston 《Canadian Metallurgical Quarterly》1994,107(4):990-9; discussion 999-1000
From July 1990 to April 1993, 36 lung transplantations in 33 patients were performed in our pediatric transplant program (0.25 to 23 years, mean age 10.3 years). Eight children had been continuously supported with a ventilator for 3 days to 4.5 years before transplantation and three were supported by extracorporeal membrane oxygenation. Indications for lung transplantation in this pediatric population included the following: cystic fibrosis (n = 13), pulmonary hypertension, and associated congenital heart disease (n = 10), pulmonary atresia, ventricular septal defect and nonconfluent pulmonary arteries (n = 3), pulmonary fibrosis (n = 6), and acute respiratory distress syndrome (n = 1). Three children underwent retransplantation for acute graft failure (n = 2) or chronic rejection (n = 1). Pulmonary fibrosis was related to complications of treatment of acute of myelogenous leukemia with bone marrow transplantation in two children and to bronchiolitis obliterans, bronchopulmonary dysplasia, interstitial pneumonitis, and Langerhans cell histiocytosis in four others. Thirteen children underwent lung transplantation and concomitant cardiac repair. Bilateral lung transplantation, ventricular septal defect closure and pulmonary homograft reconstruction of the right ventricular outflow tract to the transplanted lungs was performed in three children by means of a new technique that avoids the need for combined heart-lung transplantation. Two patients had ventricular septal defect closure and single lung transplant for Eisenmenger's syndrome, two had ligation of a patent ductus arteriosus and transplantation, three additional children underwent atrial septal defect closure and lung transplantation, and two underwent lung transplantation for congenital pulmonary vein stenosis. Eight early deaths and three late deaths occurred (actuarial 1-year survival 62%). Lung transplantation in children has been associated with acceptable early results, although modification of the adult implantation technique has been necessary. Lung transplantation and repair of complex congenital heart defects is possible; heart-lung transplantation may only be required for patients with severe left heart dysfunction and associated pulmonary vascular disease. Bronchiolitis obliterans remains a major concern for long-term graft function in pediatric lung transplant recipients.  相似文献   

6.
Cystic fibrosis     
Cystic fibrosis has only been recognized as a distinct clinical entity for less than 60 years. In that period of time, the median survival has improved from a few months to 29 years. This editorial review outlines the clinical multiorgan involvement of cystic fibrosis and current management strategies and introduces the comprehensive articles by the contributing authors of this section on the most rapidly evolving areas in cystic fibrosis. The discussion includes how the cystic fibrosis gene product, the cystic fibrosis transmembrane conductance regulator, produces lung disease; the relationship between genotype and phenotype; the factors that determine prognosis in cystic fibrosis; new treatment modalities for cystic fibrosis; lung transplantation; and the prospects for gene therapy in cystic fibrosis. With rapid advances in our clinical and genetic understanding of cystic fibrosis, it is projected that individuals born with cystic fibrosis today will live into their 40s.  相似文献   

7.
Recently, the flutter was introduced as a new device to improve sputum expectoration. Preliminary data suggested a significant improvement in expectoration and lung function during flutter treatment in patients with cystic fibrosis (CF). The aim of the present study was to compare the effects of the flutter and the positive expiratory pressure (PEP) mask on symptoms and lung function in children with CF. In a crossover randomized study 22 patients with CF (mean age 12 yrs, range 7-17 yrs) performed physiotherapy using either the flutter or the PEP mask twice a day during two treatment periods of 2 weeks, separated by a one week wash-out period, in a random sequence. Lung function parameters (peak expiratory flow, forced vital capacity (FVC), forced expiratory volume in one second, maximal midexpiratory flow, maximal expiratory flow at 25% of FVC, thoracic gas volume, total lung capacity, residual volume/total lung capacity, airway resistance and specific airway conductance) and changes in transcutaneous oxygen haemoglobin saturation were assessed before and after the first supervised session and at the end of each treatment period. Throughout the study peak flow was measured and symptoms were scored daily. No significant changes in any lung function parameter occurred after a single session or after 2 weeks of physiotherapy with either method. There was no difference in acceptability and subjective efficacy. In conclusion, any superiority of the flutter over the positive expiratory pressure mask technique for expectoration could not be confirmed during 2 weeks of daily treatment in children with cystic fibrosis. Both methods are well accepted by children and do not change lung function. Long-term comparison of both methods, including expectoration measurements, seems to be required for further evaluation of the potential success of physiotherapy in cystic fibrosis.  相似文献   

8.
9.
Objective to review the experience of the lung transplantation unit at Hospital La Fe (Valencia). Between February 1990 and March 1996 we performed 40 lung transplants. The following causes were most common: cystic fibrosis (9 cases), emphysema (8), pulmonary fibrosis (8) and bronchiectasis (7). Types of intervention were 27 double lung transplants (25 sequential and 9 blocked), 9 single lung transplants, and 4 heart-lung transplants. We then reviewed the 36 single and double lung transplants. The main exclusion criteria were age over 65 years, malignant disease, kidney or liver disease, severe or non reversible central nervous system disease, and drug addiction. Prior surgery, mechanical ventilation and the presence of Aspergillus were considered lower-order contraindications. Mean patient age was 37.7 years (14-59). Six patients were colonized by Aspergillus before transplantation. Five had undergone earlier surgery and two were mechanically ventilated before the transplant. The most common complication was respiratory infection, which was present in 6 of the 7 patients who died. Other complications in order of frequency were dehiscence and/or bronchial stenosis, corticoid myopathy and postoperative bleeding. The actuarial survival rate of single and double lung transplants was 67.85 after 3 years, and 87.5% in patients with cystic fibrosis. Lung transplantation is a well-established procedure that is gradually being extended to treat more conditions. The main obstacle is the scarcity of donors. The main challenge at present is bronchiolitis obliterans.  相似文献   

10.
Bilateral lung transplantation is actually considered a valuable option for patients with endstage lung disease related to cystic fibrosis. Timing is crucial to transplant successfully as many patients as possible and it is mainly based on the progressive worsening of pulmonary function tests and quality of life. We reviewed the charts of all patients accepted for lung transplantation at our institution, in order to assess the role of several functional and demographic parameters; we compared the group of patients able to successfully wait for transplantation (Group A) with patients dying on the waiting list (Group B). Twenty-eight patients were accepted: 15 were successfully transplanted (2 at other institutions) (mean waiting time: 117 days), 7 died waiting (mean waiting time: 108 days) and 6 are still on the list. We recorded FEV-1, FVC, PaO2, PaCO2, supplemental O2 requirement, 6-minute walking test, right ventricular ejection fraction (RVEF) and cardio-pulmonary hemodynamics measured at right heart catheterization; we recorded also age at time of diagnosis and at time of evaluation, sex, weight and Schwachman score. These parameters were compared between Group A and B. Age at time of evaluation, sex, weight and Schwachman score did not present any difference between the two groups, as well as pulmonary function tests, PaO2, 6-minute walk test and RVEF. A statistically significant difference was found in terms of PaCO2 (43.9 +/- 9.3 in Group A vs 69.1 +/- 32.4 in Group B, heart rate at rest (102 +/- 21 vs 131 +/- 12) mean pulmonary artery pressure (20.6 +/- 2.9 vs 36 +/- 15.7), pulmonary vascular resistances (350 +/- 96 vs 460 +/- 119.4), cardiac index (3.2 +/- 0.6 vs 5.4 +/- 0.9). On the base of our initial experience we conclude that a careful evaluation of CF candidates for lung transplantation is recommended. A deterioration of pulmonary function tests and quality of life are useful parameters to accept patients in the waiting list; however priority should be attributed also on the base of cardio-pulmonary hemodynamics. A larger series of patients is required to draw definitive conclusions.  相似文献   

11.
INTRODUCTION: High Resolution Computed Tomography (HRCT) has been used by many authors to study the early complications of lung transplantation. Bronchoscopy, transbronchial biopsy and the clinical parameters are the tools of choice to diagnose such complications; HRCT showed excellent sensitivity (100%) and good specificity (93%) especially in detecting bronchial stenoses. We report the preliminary results of HRCT in detecting early/late complications in lung transplant recipients. MATERIAL AND METHODS: Sixteen lung transplant recipients (5 single and 11 double transplants) were examined with HRCT at the Servizio Speciale Diagnostica V of "La Sapienza" University (Rome, Italy). The CT findings were compared with the results of bronchoscopy and respiratory function tests. The patients (8 men and 8 women; age range: 18-57 years, mean: 37.5) had cystic fibrosis (9), emphysema (3), alpha-1-antitrypsin deficiency (1), idiopathic pulmonary fibrosis (2), and bronchiectasis (1). RESULTS AND DISCUSSION: During the follow-up, one patient died of pulmonary edema. CT findings were normal in 3 patients and mild pleural effusion was seen in 2. The other HRCT findings were: bronchial stenosis in 5 cases (which was bilateral in 1) and bronchial dehiscence in 1 patient; four cases of infection (1 CMV, 1 aspecific bacterial pneumonia, 1 Chlamydia psittacea and 1 Aspergillosis) and one of brochiolitis obliterans. A patient was treated for acute and one for chronic rejection. A CMV infection involved only the native lung in a patient. CT is easy to perform and a repeatable and well-tolerated tool with high sensitivity (100%) and good specificity (93%) in the early diagnosis of complications, particularly bronchial stenoses, which complications are often missed at bronchoscopy or clinically silent. CT should be always performed before bronchoscopy because it can provide valuable information for bronchoscopy targeting. CONCLUSIONS: In agreement with other authors we consider HRCT a very useful tool in the early diagnosis of the complications following lung transplantation.  相似文献   

12.
INTRODUCTION: Cystic fibrosis (CF) is a disease caused by an inherited genetic defect. While pulmonary and pancreatic abnormalities predominate the clinical spectrum, other organ involvement is common, including liver. The severity of liver disease does not appear to be related to the severity of exocrine pancreatic or lung function. We discuss anaesthesia in four CF patients undergoing liver transplantation. METHODS: We studied haemodynamic and oxygenation modifications during anaesthesia in four patients affected by CF with end-stage liver disease and mild to moderate pulmonary abnormalities. The patients received pancreatic enzyme prior to transplantation and two had insulin-dependent diabetes mellitus. All patients were treated with broad-spectrum antibiotic therapy. After a waiting time ranging one week to three months, all patients were successfully transplanted. General anaesthesia was induced with fentanyl, thiopental and pancuronium, and maintained with isoflurane supplemented by fentanyl in O2:air. Haemodynamic and oxygenation evaluations were made during the main phases of the transplant. After the intubation and at the end of the procedure all patients received a broncho-alveolar toilet through fiberoptic bronchoscopy. RESULTS: During anaesthesia for liver transplantation, PaO2 increased proportionally to the decreasing of Qs/Qt. In postoperative follow-up, Fev1 and FVC improved from preoperative time in all patients. In conclusion, even if cystic fibrosis is a multisystem disease, liver transplantation can be offered to CF patients with endstage liver disease and mild to moderate pulmonary function abnormalities. The four patients are still alive, enjoying good health. The improved respiratory function and quality of life of these children is remarkable.  相似文献   

13.
Chronic bacterial colonization of the lungs, with an excessive inflammatory response, is the major cause of morbidity and mortality in cystic fibrosis. Lung surfactant exhibits a spectrum of potential immunomodulatory properties: phospholipid components inhibit cellular inflammatory responses, whereas the hydrophilic surfactant proteins A (SP-A) and D (SP-D) are integral components of the innate host defense response of the lungs against bacterial infection. Consequently, alteration to the relative proportions of lung surfactant components may alter the susceptibility of the lungs to bacterial colonization. In this study, bronchoalveolar lavage (BAL) samples were collected at diagnostic fiberoptic bronchoscopy from 11 control children, 13 children with cystic fibrosis, and 11 children with acute lung infection. Electrospray ionization mass spectrometry analysis demonstrated negligible changes to the molecular species or total BAL concentrations of phosphatidylcholine, phosphatidylglycerol, or phosphatidylinositol among the three subject groups. In contrast, median SP-A concentration was decreased (P < 0.001) in the cystic fibrosis group (2.65 microg/ml) compared with control (12.35 microg/ml) and infection (9.76 microg/ml) groups. Median SP-D was also decreased (P < 0.05) in the infection (12.17 ng/ml) compared with the control group (641 ng/ml), and was below assay limits for the majority of cystic fibrosis children (P < 0. 001). This dramatic decrease of hydrophilic surfactant proteins in the presence of normal surfactant phospholipid may be one mechanism underlying the relative ineffectiveness of the cellular inflammatory response in killing invading bacteria in the lungs of patients with cystic fibrosis.  相似文献   

14.
Eleven days after double lung transplantation for cystic fibrosis, an 18-year-old patient developed a disseminated Fusarium solani infection with tricuspid valve endocarditis. This infection occurred under fluconazole and immunosuppressive therapy with cyclosporin, prednisone and azathioprine, with a normal leucocyte count. Liposomal amphotericin B allowed blood culture negativation. The patient died from a bacterial septic shock.  相似文献   

15.
BACKGROUND: There is controversy over whether colonization with drug-resistant organisms is a contraindication to lung transplantation. METHODS: We undertook a retrospective review of the results of lung transplantation for patients with cystic fibrosis (CF) at Duke University Medical Center. RESULTS: As of May 1996, 21 patients with CF underwent bilateral lung transplantation. The first patient died within 24 h of transplantation from sepsis due to Stenotrophomonas maltophilia. Of the remaining 20 patients, 17 (85%) are alive and in stable condition. The three deaths were related primarily to bronchiolitis obliterans at 4 and 18 months in two patients and to cytomegalovirus pneumonitis at 5 months in the other patient. The 17 surviving patients have been followed up for a mean of 13 months (range, 0.5 to 34 months). Most of them were colonized and infected with multidrug-resistant organisms before transplantation. Following transplantation, 11 patients had complications from infections. One patient had bacteremia due to a panresistant Burkholderia cepacia and was treated successfully. Two patients had bacteremia and wound infection due to Burkholderia gladioli, previously thought to be pathogenic only in plants. Both patients were treated successfully. Of the six patients with Aspergillus fumigatus isolated from cultures before transplantation, only one had invasive disease following transplantation and responded to treatment. CONCLUSION: The organisms present before transplantation were not the primary cause of mortality in our patient population. Our findings suggest that lung transplantation should be considered in CF patients infected with multidrug-resistant organisms.  相似文献   

16.
The absence or mislocalization of cystic fibrosis transmembrane conductance regulator (CFTR) is regarded as being specific for cystic fibrosis (CF). In principle, the supply of a non-CF lung transplant to a CF patient should bring up normal CFTR expression in the lower airways. Immunolocalization of CFTR and of epithelial differentiation markers (ie, cytokeratins 13, 14, and 18, and desmoplakins 1 and 2) was carried out on 21 mucosal biopsies from the upper lobe of grafts in non-CF (n = 12) and CF patients (n = 9) retrieved between days 23 and 1,608 after lung transplantation. Biopsy specimens from seven non-CF and four CF patients presented either a pseudostratified respiratory epithelium or slight basal cell hyperplasia. CFTR was distributed at the apical membrane of the ciliated cells. In remodeled epithelia with basal cell hyperplasia or squamous metaplasia, CFTR was either weakly expressed in the cytoplasm of the superficial epithelial cells or was undetectable. The extent of epithelium remodeling was significantly correlated with an impairment of lung function. The results suggest that posttransplant airway epithelium dedifferentiation of the graft leads to the loss of properly targeted CFTR irrespective of the underlying disease of the recipient.  相似文献   

17.
The shortage of suitable liver donors for children has motivated the use of ABO-incompatible (ABO-I) grafts for transplantation in urgent situations. However, survival after ABO-I liver grafts has been reported at about 30% as compared with 80% in cases of ABO-identical or -compatible liver grafts. This difference has been attributed to antibody-mediated, hyperacute or chronic liver rejection, due to preformed ABO antibodies (alloantibodies). In this study, we report our results with ABO-I livers in children without alloantibodies at the time of transplantation. From January 1988 to June 1993, 143 OLT were performed in 122 children. Eight children received 8 ABO-I liver grafts. Of these, 7 patients were included in the study. All 7 were alloantibody free before OLT. Five children were spontaneously alloantibody free, while in 2 children, the plasma alloantibodies were eliminated before and after transplantation using intravenous infusion of specific blood group antigens of the donor blood group (soluble antigens). Immunosuppression consisted of a triple-drug treatment combining CsA, AZA, and steroids. The follow-up period was between 10 and 48 months. One child died from a surgical complication. Six children survived, but 1 died 10 months later from intestinal obstruction. There were no graft losses and no episodes of hyperacute or chronic rejection. The graft and patient survival rate was 71%. There was a 28% incidence of rejection, but all were mild (requiring steroid boluses only). Our results suggest that the absence of ABO alloantibodies at the time of and after transplantation can protect ABO-I liver grafts against antibody-mediated rejection, whether hyperacute or chronic, and that soluble antigens are effective in eliminating alloantibodies in children.  相似文献   

18.
OBJECTIVE: To describe the clinical characteristics of patients with cystic fibrosis considered for liver transplantation and the clinical outcome after transplantation. METHODS: Patient charts were reviewed. Mutation analysis was performed on blood or liver tissue samples with a panel of 17 mutations. RESULTS: Eight patients (five girls) with cystic fibrosis have undergone orthotopic liver transplantation for biliary cirrhosis. Mean age at transplantation was 12.0 years +/- 7.7 years (range, 9 months to 23 years). Preoperatively, seven patients had mild to moderate pulmonary dysfunction and one moderate to severe pulmonary dysfunction. All patients required pancreatic enzyme replacement, and four patients required insulin for diabetes mellitus. The 1-year survival rate was 75%, with no deaths related to septic events. Mean time of follow-up the six operative survivors was 4.1 years +/- 1.9 years. Pulmonary function testing, in those serially tested, showed that forced expiratory volume in 1 second was maintained or improved and that forced vital capacity improved after transplantation. Mutation analysis showed the following genotypes: four patients, delta F508/delta F508; one patient, delta F508/N1303K; and three patients, delta F508/unknown. CONCLUSIONS: Despite the high risk of transplantation, these encouraging results indicate that liver transplantation should be considered for patients with cystic fibrosis and complications of end-stage liver disease. We could not demonstrate an unusual pattern of CF gene mutations in these patients with severe liver disease. It appeared that immunosuppressive agents did not have a deleterious effect on pulmonary function.  相似文献   

19.
BACKGROUND: Despite a nationwide surplus of cardiac transplantation programs, the number of United States armed forces veterans who receive heart transplants has declined over the past several years. This study reviews the efficacy of a partnership between a Veterans Affairs hospital and a university hospital in maximizing the access of veterans to the limited donor heart supply. METHODS: As part of a contract-based sharing agreement between the University of Wisconsin Hospital and the William S. Middleton Memorial Veterans Affairs Hospital, 25 veterans underwent orthotopic heart transplantation between October 1993 and April 1995. Care of the patients was provided at the Veterans Affairs Hospital. The transplantation operations were performed at the University of Wisconsin Hospital, and all patients were transferred back to the Veterans Affairs Hospital 5 to 7 days afterward. All patients were men (mean age, 52.1 +/- 2.1 years) and were referred from Veterans Affairs hospitals in nine different states. RESULTS: During the 19-month period, the average length of hospital stay for pretransplantation evaluation was 7.0 +/- 0.7 days (range, 2 to 15 days). Average status I waiting time was 26.9 +/- 3.3 days (range, 5 to 54 days); the average waiting time for status II was 115.1 +/- 16 days (range, 15 to 242 days). Posttransplantation length of stay at the Veterans Affairs Hospital was 22 +/- 1.8 days (range, 11 to 41 days). Only 1 patient (4%) experienced a lethal postoperative complication. Ten patients (40%) exhibited graft rejection within the first month after transplantation, requiring treatment with augmented immunosuppressive therapy (steroids, orally in 2 patients and intravenously in 8). The overall 30-day mortality rate was 4% (1 patient). The cause of death was acute grade 4 graft rejection 3 weeks after transplantation. Overall patient survival was 96%. CONCLUSIONS: A partnership between a Veterans Affairs hospital and a university hospital committed to transplantation can increase Veterans Affairs cardiac transplantation activity, with excellent 30-day mortality and early survival results.  相似文献   

20.
As with other paired and lobed solid organs, surgical techniques have now evolved to permit safe live donation. Almost all the published experience comes from one centre, with cystic fibrosis recipients receiving right and left lower lobes, typically one from each parent. Donor morbidity has been acceptable, with no known deaths. Early survival, perhaps because patients are only transplanted in extremis, has been less good than can be achieved in cadaver transplantation. Early and late rejection remain at least as common as after conventional transplants, but is nearly always asynchronous, affecting one lung at a time. There remain significant ethical difficulties, and the approach has yet to prove itself.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号