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PubMed1996

Perspectives on communication issues among transplant and procurement professionals, transplant recipients, and donor families.

Communication among professionals, donor families, and transplant recipients is a controversial topic. Traditionally, transplant and procurement professionals have made the decision about the type and frequency of information that a donor family and transplant recipient receive regarding one another, and relationships that might develop as a result. Information obtained through questionnaires demonstrated inconsistency in addressing donor family and transplant recipient needs for initial and follow-up information and communication-not only between clinical transplant and procurement donation coordinators, but within organizations involved in the care and support of these people. This wide variance regarding communication among all disciplines demonstrated a need for standardization of practice guidelines. Guidelines are being developed through collaboration of the major organizations involved in the care of donor families and transplant recipients to standardize communication practices throughout the United States.

Adult↗
PubMed2003

Improved patient survival in recipients of simultaneous pancreas-kidney transplant compared with kidney transplant alone in patients with type 1 diabetes mellitus and end-stage renal disease.

BACKGROUND: There are emerging data that simultaneous pancreas-kidney transplant (SPK) prolongs life compared with kidney transplant alone (KTA) in type 1 diabetics with end-stage renal disease. This study was a retrospective comparison of SPK with KTA in patients with type 1 diabetes. METHODS: Between 1 January 1992 and 30 April 2002, 101 patients with type 1 diabetes were transplanted. Fifty-one of these patients received a KTA and 50 had a SPK. All patients underwent coronary angiography with surgical correction of any coronary artery disease before being listed. All patients who underwent SPK received quadruple immunosuppressive therapy consisting of antilymphocyte globulin, calcineurin inhibitor (tacrolimus or cyclosporin), azathioprine and steroids. Those who underwent KTA received calcineurin inhibitor (tacrolimus or cyclosporin), azathioprine and steroids. RESULTS: Patient survival at 1, 3, 5 and 8 years was 96, 93, 89 and 77 per cent respectively after SPK, and 93, 75, 57 and 47 per cent respectively after KTA (P = 0.018 at 8 years). CONCLUSION: The addition of pancreatic transplantation prolongs life in type 1 diabetic patients with renal failure compared with renal transplantation alone.

Adult↗
PubMed1995

Autologous stem cell transplantation in multiple myeloma: results of the European Group for Bone Marrow Transplantation.

Autologous hematopoietic stem cell transplantation was used for treatment of 384 patients with multiple myeloma in 37 centers during the years 1986-1994. An analysis of prognostic factors was performed in 207 of these patients. One hundred forty one were males and 66 females, and median age was 49 years (range, 24-68). Actuarial survival at 78 months is 45%. Factors associated with a good prognosis were: response on chemotherapy immediately pretransplant, administration of only one treatment regimen, a low serum-beta 2-Microglobulin value at diagnosis and the use of a conditioning regimen including melphalan. In a multivariate analysis, response status pretransplant, age < 45 years, melphalan conditioning and non-TBI conditioning were independently predictive for longer survival, while transplantation after only one line of primary treatment and isotype other than light-chain were of borderline significance. Post-transplant alpha-interferon treatment was associated with improved survival in responsive patients. Eighteen patients treated in one center (Huddinge) passed a double autograft program, and 14 are in continuous complete remission ([CR]; n = 10) or good partial remission (n = 4) at a median time of 17 months after the first transplant (range, 2-38). In five CR patients, polymerase chain reaction (PCR)-analysis of the clone-specific immunoglobulin-rearrangement was performed, and four are PCR-negative up to 33+ months after the first transplantation. We conclude that autografting in myeloma is most effective when applied early in the course of disease in younger, chemotherapy-reponsive patients. Alpha-interferon maintaince treatment seems to be beneficial with respect to improved survival.(ABSTRACT TRUNCATED AT 250 WORDS)

Adult↗
PubMed1999

Intranigral transplants of GABA-rich striatal tissue induce behavioral recovery in the rat Parkinson model and promote the effects obtained by intrastriatal dopaminergic transplants.

Intrastriatal transplantation of fetal ventral mesencephalon (VM) is currently explored as a potential clinical therapy in Parkinson's disease (PD). Although providing substantial benefit for the patient, behavioral recovery so far obtained with intrastriatal VM grafts is not complete. Using the 6-hydroxydopamine lesion model of PD, we show here that near-complete restoration of the striatal dopamine (DA) innervation can be achieved by multiple intrastriatal microtransplants of fetal DA cells; nevertheless, complete recovery in complex sensorimotor behaviors was not obtained in these animals. In line with the current model of basal ganglia function, this suggests that the lesion-induced overactivity of the basal ganglia output structures, i.e., the substantia nigra (SN) and the entopeduncular nucleus, may not be completely reversed by intrastriatal VM grafts. In the present study, we have transplanted fetal VM tissue or fetal striatal tissue, as a source of DA and GABA neurons, respectively, into the SN of DA-depleted rats. Intranigral VM grafts induced behavioral recovery in some sensorimotor behaviors (forelimb akinesia and balance tests), but the effect did not exceed the recovery observed after intrastriatal VM grafts. Intranigral grafts of striatal tissue induced a pattern of functional recovery which was distinctly different from that observed after intranigral VM grafts, and recovery in coordinated forelimb use in the paw-reaching test was even more pronounced than after intrastriatal transplantation of VM cells. Combined transplantation of DA neurons into the striatum and GABA-rich striatal neurons into the SN induced additive effects of behavioral recovery observed in the forelimb akinesia test. We propose that intranigral striatal transplants, by a GABA-mediated inhibitory action, can reduce the overactivity of the host SN projection neurons and can induce significant recovery in complex motor behavior in the rat PD model and that such grafts may be used to increase the overall functional efficacy of intrastriatal VM grafts.

Animals↗
PubMed2002

Methods and objectives of a large US multicenter case-control study of post-transplant lymphoproliferative disorder in renal transplant patients.

A large multicenter case-control study is in progress in the United States, the primary goal of which is to provide information about the effects of specific immunosuppressants and other risk factors on posttransplant lymphoproliferative disorder (PTLD) in renal transplant patients. It will also provide incidence data and case characterization on PTLDs arising in a large contemporary population. Medical record data are being collected on up to 120 PTLD cases and up to four controls per case transplanted at 20 large US centers. Participants all received transplants on or after July 1, 1995 and PTLD cases will be identified through December 31, 2001. All cases undergo central clinical and pathologic review. Abstracted information includes detailed data (dosages, duration) on all immunosuppressants (induction, maintenance, anti-rejection) as well as antiviral treatment. Other data include demographics, transplant history, HLA matching and viral status (e.g., Epstein-Barr virus, cytomegalovirus). Information associated with the PTLD diagnosis and initial therapy for PTLD is also collected. To date, 86 potential cases have been reported. Twenty (24%) are pediatric patients (< or =18 years). Median time between transplant and PTLD is 268 days; 53 (62%) were diagnosed within the first year. Cumulative incidence through 1998 is 0.7% for adults and 4.5% for children. The most common single site for PTLD is the allograft. Common treatments included either a reduction or discontinuation of immunosuppression (90%) and antiviral treatment (66%). Overall, the allograft appears to be an important site of PTLD recurrence. Also, the incidence of renal PTLD since the introduction of new immunosuppressive therapies is similar to that reported earlier.

Adolescent↗
PubMed2004

Twenty years' experience in allogeneic hematopoietic stem cell transplantation for Philadelphia chromosome-positive acute lymphoblastic leukemia in the Nagoya Blood and Marrow Transplantation Group.

Between October 1981 and December 2000, 46 patients with Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL) underwent allogeneic hematopoietic stem cell transplantation (HSCT) in the Nagoya Blood and Marrow Transplantation Group. The median age was 28.5 years (range, 4-51 years). All but one patient achieved engraftment. Grade II-to-IV acute graft-versus-host disease (GVHD) developed in 32.5% of patients, and chronic GVHD developed in 40.5%. The incidences of relapse and treatment-related mortality (TRM) at 5 years were 65% and 26%, respectively. The estimated overall survival rate at 5 years was 23%. Univariate analysis showed that improved disease-free survival (DFS) was independently associated with complete remission (CR) at transplantation (39%), compared with non-CR (8%) (P = .023). Non-CR at transplantation was associated with a higher risk of relapse. Donor type, acute GVHD, and time from diagnosis to HSCT all had a significant effect on TRM. In a multivariate analysis, 9 months or more from diagnosis to HSCT was the only variable statistically significant for DFS (relative risk, 3.22; P = .01). This study demonstrates that allogeneic HSCT cures a significant population of patients with Ph+ ALL. Relapse is the major obstacle limiting the success of HSCT. Early transplantation during CR from donors, including unrelated persons or mismatched relatives, may offer improved long-term DFS.

Adolescent↗
PubMed2001

Human islet transplantation network for the treatment of Type I diabetes: first data from the Swiss-French GRAGIL consortium (1999-2000). Groupe de Recherche Rhin Rhĵne Alpes Genève pour la transplantation d'Ilots de Langerhans.

AIMS/HYPOTHESIS: Improvements in islet transplantation require clinical series large enough to implement controlled new strategies. The goal of this study was to demonstrate the feasibility of a multicentre network for islet transplantation in Type I (insulin-dependent) diabetic patients. METHODS: The five centres (Besançon, Geneva, Grenoble, Lyon, Strasbourg) of the GRAGIL network allow pancreas procurement, recipient recruitment, transplantation procedure and follow-up. Islet isolation is, however, performed in one single laboratory (Geneva). Pancreata were procured in each of the five centres and transported to Geneva with an ischaemia time of less than 8 hours. Islets were isolated using a standard automated method. If the islet number was too low for a graft (< 6,000 Islet-equivalent/kg), islets were cultured up to 12 days until another isolation was possible. Islets were transplanted by percutaneous transhepatic intraportal injection. Immunosuppression consisted of cyclosporine, mycophenolate mofetil, steroids and an anti-interleukin 2 receptor antibody. RESULTS: From March 1999 to June 2000, 56 pancreata procurements were performed with an average yield of 234500 islet-equivalent, with 32 preparations over 200000 islet-equivalent. Ten C-peptide negative Type I diabetic patients (5 men and 5 women, median age 44 years, median diabetes duration 29 years) with an established kidney graft (> 6 months) received 9,030 +/- 1,090 islet-equivalent/kg with a median purity of 63 %. The number of pancreata required for each graft was 1 (n = 5) or 2 (n = 5). At the completion of a 12 month follow-up, we observed 0% primary nonfunction, 50% graft survival and 20% insulin-independence. CONCLUSIONS/INTERPRETATION: This study demonstrates the interest and the feasibility of a multicentre collaboration in human islet transplantation.

Adult↗
PubMed2001

A comparison of actual registered costs and costs derived from diagnosis-related groups (DRGs) for patients undergoing heart transplantation, lung transplantation, and thoracotomy for other lung diseases.

The Norwegian health care system, like other health care systems in the world, is in the midst of a changing financial environment for hospital reimbursement for patient care. Since 1997 the Norwegian government has introduced a new financing model of block grant and activity-based financing. In this model, diagnosis-related groups (DRGs) play an important role in hospital financing. The initial motive for developing the DRGs was to improve hospital productivity and efficiency and to develop a tool to control increasing hospital costs better. We raised the question as to whether the DRG system in fact covers actual costs in patient groups undergoing heart transplantation (n = 12), lung transplantation (n = 4), and thoracotomy for other diseases (n = 10). A new prospective cost model was developed to measure actual costs related to individual patients. The patients were closely observed and the related data collected during the hospital stay. Each patient's hospital stay was divided into four different categories of resource requirements, defined as heavy intensive care, light intensive care, intermediate care, and ordinary care. In addition, the number of staff involved and the duration of surgery and procedures were recorded, as were medicine costs and material costs. Based on these data, the actual costs for each patient were calculated. These were then compared with the respective DRG reimbursement (100 % coverage) for the corresponding group. We found that the median cost for heart transplantation was US$ 50,590 (1 US$ = 7.5 NOK based on the exchange rate at the time of the study), while the respective DRG reimbursement was US$ 65,662. For lung transplantation, the respective figures were US$ 46,668 vs US$ 65,662, and for thoracotomy, US$ 24,307 vs. US$ 11,004. We found that our method was applicable to a hospital setting. DRG coverage for heart and lung transplantation seems to overestimate the actual costs. For the thoracotomy procedure, the DRG coverage did not cover the actual costs.

Adult↗
PubMed2005

Liver transplantation after stem cell transplantation with the same living donor in a monozygotic twin with acute myeloid leukemia.

Two monozygotic twins from a Swedish, nonconsanguine family-with concordant acute myeloid leukemia and similar morphological and cytogenetic changes, but with additional changes in one twin, suggestive of clonal evolution-are described. Twin I relapsed 4 months after completion of treatment, while twin II was still on treatment and was transplanted with stem cells from the human leukocyte antigen-identical father. An early relapse after transplantation was treated with donor lymphocyte infusions, but twin I relapsed again and died 8 months after stem cell transplantation (SCT). On relapse of twin I, treatment of twin II was reconsidered and consolidation was intensified with SCT in CR1 with peripheral blood stem cells from the father. Due to irreversible liver failure caused by severe venoocclusive disease, a living, related liver transplantation from the father was performed on day +84 post-SCT. Minimal immunosuppression was required, and graft rejection did not occur. The patient was in complete remission 29 months after SCT and 25 months after liver transplantation.

Acute Disease↗
PubMed2001

Autologous stem cell transplantation for follicular lymphoma: no benefit for early transplant?

Autologous stem cell transplantation (SCT) is widely used as salvage treatment for patients with relapsed follicular lymphoma (FL). Although SCT can induce prolonged remissions, it does not appear to be curative in the vast majority of patients. The purpose of this study was to investigate if incorporation of SCT into first-line therapy can improve its efficacy. Fifty-five patients underwent sequential high-dose therapy as up-front (n=33) or salvage treatment (n=22) for advanced stage FL at our institution. Treatment consisted of intensive chemotherapy with dexamethasone, carmustine (BCNU), etoposide, cytarabine, and melphalan (Dexa-BEAM) for mobilization of peripheral stem cells and reduction of tumor load, followed by one of three different myeloablative regimens and SCT. With a median follow-up of 4 years, projected event-free survival (EFS) and overall survival (OS) at 4 years post transplant was 59% and 84%, respectively, with no evidence of plateau in the survival curves. By univariate and multivariate analysis weighing age, sex, stage, BM and extranodal involvement, timing of transplant, ex vivo purging, and conditioning regimen [total body irradiation (TBI) vs non-TBI], the only significant factor predicting for superior EFS and OS was up-front vs salvage transplant (4-year EFS 76% vs 38%, p=0.02; 4-year OS 92% vs 73%, p=0.033). However, when calculated from diagnosis, EFS and OS of the up-front and salvage groups were virtually identical, implying that the longer survival post SCT in the up-front group was completely compensated by the longer interval between diagnosis and transplant in the salvage group. Median OS from diagnosis was 13.5 years. Except for one case of anaplastic large cell lymphoma, secondary neoplasms have not occurred to date. In conclusion, our data indicate that SCT might improve the prognosis of patients with disseminated FL, although it is probably not curative even if applied early during the course of the disease. The optimum timing of SCT remains to be determined by the ongoing randomized multicenter trial of the German Low-grade Lymphoma Study Group. The impact of radiotherapy on the success of SCT does not seem to be as essential as originally believed.

Adult↗
PubMed1975

Kidney transplantation in patients with end stage congenital renal disease. Report of eighteen cases and review of the Organ Transplant Registry.

Eighteen patients with end stage congenital renal disease requiring kidney transplantation constituted 12 per cent of the transplantation recipients at this institution over the past six years. The post-transplantation course in this group was remarkably satisfactory, with a 94 per cent graft survival at three years. In addition, we analyzed survival data from over 9,900 patients in the Organ Transplant Registry and demonstrated that transplant recipients with end stage congenital renal disease have equal or better five year patient survival compared with those with acquired end stage renal disease. Only those patients with adult polycystic disease had a less satisfactory prognosis, probably because of age-related factors. In contrast, there were few statistical correlations between renal allograft survival, age, and original disease.

Adolescent↗
PubMed1990

Orthotopic liver transplantation for graft-versus-host disease following bone marrow transplantation.

Chronic graft-vs.-host disease occurs in 30%-50% of long-term survivors of allogeneic bone marrow grafts, and may eventuate in cirrhosis. In this study, a young woman, originally diagnosed as having acute myelogenous leukemia, underwent successful bone marrow transplantation but later developed graft-vs.-host disease-induced cirrhosis and recurrent variceal hemorrhage. She underwent successful orthotopic liver transplant. Her postoperative course was uncomplicated, with no evidence of rejection or recurrence of graft-vs.-host disease. As bone marrow transplantation is more widely used and survival improves, the number of patients with graft-vs.-host disease or venoocclusive disease resulting in cirrhosis is likely to increase. Hepatic transplantation should be considered for bone marrow transplant patients who develop end-stage liver disease.

Adult↗
PubMed1990

Lung and heart-lung transplantation for end-stage lung disease. The Bordeaux Lung and Heart-Lung Transplant Group.

Between February 1988 and December 1989, 15 combined heart-lung, 2 double lung and 5 single lung transplants were performed at our institution for end stage lung disease. The indication for heart-lung transplantation was primary lung disease with associated secondary heart failure in 11 cases, diffuse pulmonary disease with extensive adenopathy of the hilum in 2 cases and profuse and antibiotic-resistant tracheobronchial infection due to Pseudomonas in 2 cases. A double lung transplant was performed in 2 patients with hypertensive emphysema. The indication for a single lung transplantation was emphysema in 2 cases and pulmonary fibrosis in 3 cases; in this last indication, transplantation should be performed on the right side with a slight lengthening of the main bronchus to avoid the side-effects of mediastinal shift. There were 2 early deaths, 7 secondary deaths (from the 2nd to the 5th month) due to viral or bacterial infectious complications, and 1 late death in the 7th month (infection due to a syncitial virus). All 12 surviving patients have an excellent functional result; the size of the tracheal or bronchial anastomosis ranges from 85% to 100% of normal. From this experience, we conclude that specificity and severity of lung hazards are mainly related to bronchial infection, dependence on steroids and pleural adhesions. Moreover, posttransplant pulmonary oedema, mucociliary dysfunction and the differential diagnosis between rejection and infection require careful endobronchial suction and periodical sampling.

Adult↗
PubMed2005

Cytomegalovirus disease before hematopoietic cell transplantation as a risk for complications after transplantation.

Cytomegalovirus (CMV) disease in candidates for hematopoietic cell transplantation (HCT) is increasingly observed. Among 22 patients with CMV disease before HCT, the incidence of CMV disease before HCT was significantly higher in patients with severe underlying immune deficiency syndromes compared with patients with hematologic malignancies (P < .001). The lung was the most commonly involved site of infection, followed by the gastrointestinal tract and the retina. Fourteen of 22 patients with CMV disease before HCT responded to treatment and proceeded to HCT; 8 of 22 did not receive an HCT because of fatal CMV disease (n = 2) or other complications (n = 6). Of 14 patients with CMV disease who subsequently underwent HCT, 6 (42%) had CMV disease diagnosed after transplantation despite antiviral prophylaxis or preemptive therapy, and 1 patient had evidence of persistent CMV disease before day 100 after HCT. This proportion was significantly higher than that in patients without CMV disease before HCT during the same time period (day 30, adjusted P = .003; day 100, adjusted P = .02). Thirteen of 14 patients with pretransplantation CMV disease died a median of 36 days after transplantation (range, 19-399 days; adjusted P = .005 compared with CMV-seropositive transplant recipients without a history of pretransplantation CMV disease). In summary, although CMV disease before HCT may be mild and responsive to treatment, it is associated with a high risk of early CMV disease and death after transplantation.

Acyclovir↗
PubMed2005

Umbilical cord blood transplantation in adults: results of the prospective Cord Blood Transplantation (COBLT).

The Cord Blood Transplantation study group conducted a prospective study of unrelated cord blood transplantation (CBT) to better define the role of this stem cell source for subjects requiring unrelated allogeneic transplantation. We report on 1 stratum of the study designated for adult subjects. The primary end point of the study was survival at 180 days. Secondary end points included engraftment, graft-versus-host disease, relapse, and long-term survival. Eligibility criteria for malignant and nonmalignant diseases were specified. Subjects with active central nervous system disease, Karnofsky performance status <70%, grade 3 or 4 or primary myelofibrosis, or suitable related donors were excluded. Enrollment required a single cord blood unit containing >10(7) nucleated cells per kilogram of recipient weight and matched at > or =4 HLA-A and -B (low or intermediate resolution) and -DRB1 (high resolution) types. Thirty-four subjects were entered, with a median age of 34.5 years (range, 18.2-55 years). Most subjects (n = 23) had a 4 of 6 match, 10 subjects had a 5 of 6 match, and 1 subject had a 6 of 6 match. Diagnoses at transplantation included acute myelogenous leukemia (n = 19), acute lymphoblastic leukemia (n = 9), chronic myelogenous leukemia (n = 3), myelodysplastic syndrome (n = 1), paroxysmal nocturnal hemoglobinuria (PNH) (n = 1), and non-Hodgkin lymphoma (n = 1); 94% were classified as poor risk according to National Marrow Donor Program criteria. Subjects received total body irradiation/cyclophosphamide (n = 27) or busulfan/melphalan (n = 7) conditioning regimens. Four subjects died before CBT and are described here but are not included in the main analysis. The cumulative incidence rates and median times to neutrophil (500/microL) and platelet (>20,000/microL) engraftment were 0.66 by day 42 (median, 31 days) and 0.35 by day 180 (median, 117 days). The cumulative incidence rate for grade II-IV GVHD was 0.34 by day 100. For the primary end point, survival at 180 days, Kaplan-Meier survival estimates were 0.30 (95% confidence interval, 0.14-0.46) by day 180 after transplantation. To date there are 2 survivors, and both are >36 months from enrollment. A retrospective analysis was performed by using high-resolution HLA-A and -B typing, which revealed that approximately one third of subjects had 1 or more additional HLA mismatches compared with results of low- or intermediate-resolution HLA typing. The findings of high treatment-related mortality and slow engraftment kinetics indicate that CBT should continue to be performed in specialized centers with a research focus on cord blood cells.

Adolescent↗
PubMed2005

The new apheresis and blood and marrow transplantation-related current procedural terminology codes for payment of apheresis and blood and marrow transplantation services.

To address deficiencies in Current Procedural Terminology (CPT) codes that describe many of the clinical services offered to patients, several physicians in the blood and marrow transplantation and apheresis field joined with a coalition including the American Society of Hematology, American Society for Blood and Marrow Transplantation, American Association of Blood Banks, American Society of Clinical Oncology, American Society for Apheresis, National Marrow Donor Program, and American Red Cross to collaborate in addressing these deficiencies by designing new CPT codes. The CPT editorial panel approved 18 new or revised codes. All these codes were given permanent or temporary value by the relative value unit update committee, but not all values were approved by the Centers for Medicare & Medicaid Services (CMS), in particular, the cell-processing codes and the unrelated donor search code. Further discussions addressing these concerns are under way with the CMS. Use of these new codes allows apheresis and transplant centers to charge appropriately for these services. This will help transplant center contracts with CPT codes, with payers more specifically describing services offered to these patients. In turn, this will give better justification for payment. This may allow certain payments for services to increase and help transplant centers better allocate revenue from fixed global case rate payments. Details about the individual codes and their approval process are reviewed in this article.

Blood Component Removal↗
PubMed2005

A comparison of postengraftment infectious morbidity and mortality after allogeneic partially T cell-depleted peripheral blood progenitor cell transplantation versus T cell-depleted bone marrow transplantation.

OBJECTIVE: Postengraftment infections are a major cause of transplant-related morbidity and mortality following allogeneic hematopoietic stem cell transplantation (allo-SCT). Allogeneic peripheral blood progenitor cell transplantation (PBPCT) is associated with faster hematopoietic recovery compared to bone marrow transplantation (BMT) and unmanipulated PBPCT may be associated with fewer postengraftment infections. We set out to evaluate and compare the incidence, cause, and outcome of postengraftment infections following HLA-identical sibling T cell-depleted PBPCT vs T cell-depleted BMT between days 30 and 365 posttransplant. PATIENTS: Forty recipients of peripheral blood progenitor cells (PBPC) and 47 recipients of bone marrow (BM) were included. The two groups of patients were comparable with respect to their baseline characteristics. RESULTS: PBPC grafts contained significantly more CD34+ cells and PBPCT was associated with significantly faster neutrophil and lymphocyte recovery as compared to BMT. PBPC recipients experienced more chronic graft-vs-host disease (GVHD; 55% vs 34%; p=0.02). The number of definite and clinical infections per 100 patient days was comparable between recipients of PBPC and BM with similar contribution of causative microorganisms. At one year post SCT, 68% of PBPC recipients had experienced at least one CTC grade 3-4 infection vs 65% of BM recipients. Treatment-related mortality at one year from transplantation was 34% after PBPCT vs 30% after BMT, and no difference in infection-related mortality was observed. CONCLUSION: Postengraftment infectious morbidity and mortality were comparable between recipients of PBPC and BM despite a higher CD34+ cell content of PBPC grafts and faster lymphocyte recovery after PBPCT, which may in part be explained by the higher incidence of chronic GVHD.

Adolescent↗
PubMed2004

Effect of site of transplantation on follicular development of human ovarian tissue transplanted into intact or castrated immunodeficient mice.

OBJECTIVE: To study the response of human ovarian xenografts to transplantation into different sites and in different host conditions. DESIGN: Controlled experiment. SETTING: Academic research laboratory. PATIENT(S): Donated ovarian tissue from two young women. INTERVENTION(S): Human ovarian cortical pieces were transplanted either under the kidney capsule or to the subcutaneous space of intact or castrated male nonobese diabetic (NOD) severe combined immune-deficient (SCID) mice. Grafts were recovered after euthanasia. MAIN OUTCOME MEASURE(S): Microscopic examination of histologic sections to determine proportions of growing follicles, and serum estradiol concentration measurements. RESULT(S): Six months after transplantation, ovarian grafts transplanted under the kidney capsule of intact male mice had significantly higher proportions of growing follicles compared with those recovered from the castrated/kidney capsule and intact/subcutaneous groups. However, no difference was detected between the intact/kidney capsule and the castrated/subcutaneous groups. Mean estradiol concentrations in serum were nonsignificantly increased in mice with ovarian grafts compared with those in mice without a graft. CONCLUSION(S): Follicular development in xenotransplanted human ovarian tissue is influenced by the site of transplantation and the condition of the host.

Animals↗