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D Albrechtsen

Publications and source records attributed to D Albrechtsen.

At least 37 records · Page 2Linked to original sources
PubMed1994

A randomized multicenter trial of cyclosporin and prednisolone versus cyclosporin, azathioprine, and prednisolone following primary living donor renal transplantation.

A total of 195 consecutive recipients of primary living donor renal transplants were randomized to receive either cyclosporin (CyA) and prednisolone (double therapy) or CyA, prednisolone, and azathioprine (triple therapy). There was no significant difference in patient or graft survival, incidence of acute rejection episodes, or major complications between the groups. The graft survival at 5 years was 71.5% in patients receiving double therapy and 71.6% in patients receiving triple therapy. In a Cox regression analysis, recipient age and occurrence of acute rejection were the only independently significant variables affecting graft survival, whereas treatment schedule did not. Renal function was stable throughout the observation period and did not differ between the double and triple therapy groups. A linear regression analysis showed that recipient age, donor age, gender, and occurrence of acute rejection significantly influenced the serum creatinine level. This and previous similar prospective studies in cadaveric renal transplantation indicate that there is no advantage of routinely adding azathioprine to a double drug regimen.

Adult↗
PubMed1994

HLA-A incompatibility associated with enhanced long-term renal graft survival in HLA-B, DR mismatched transplants.

The effect of HLA-A matching on long-term cadaver kidney graft survival was analysed, on average, 6 years after transplantation in a total of 1085 cyclosporine (CyA)-treated patients. A beneficial effect of HLA-A mismatching on graft survival was found by univariate and multivariate analyses (P < 0.05). Enhanced graft survival was associated with HLA-A mismatching in transplants mismatched for HLA-B,DR (P = 0.03), but not in HLA-B,DR compatible transplants. High 6 year graft survival rates, 78% and 66%, were found in transplants mismatched for two or one HLA-A antigens, respectively, among patients without any acute rejection episode. This was significantly higher than the survival rate of 55% found in HLA-A compatible transplants (P = 0.001). In patients who had suffered from acute rejection episodes, a prolonged graft survival was also associated with HLA-A mismatching in HLA-B,DR mismatched transplants (P = 0.04). The beneficial effect on graft survival of HLA-A mismatching was most pronounced in patients treated with high/medium dose CyA and prednisolone (P = 0.004 overall and P = 0.0007 for HLA-B,DR mismatched transplants). In conclusion, HLA-A mismatching was associated with enhanced long-term renal graft survival in CyA-treated recipients of HLA-B,DR mismatched transplants. In clinical situations, the present results might, if confirmed, contribute to the prolongation of long-term graft survival. The results might indicate the existence of tolerance promoting allogeneic markers within the HLA-A class I region.

Diabetes Mellitus↗
PubMed1994

[Infection in patients with organ transplants].

The past decade has seen substantial improvements both in patient and graft survival in organ transplantation. One-year survival rates among recipients of kidney, pancreas, liver, and lung transplants now reach 80-90 per cent. The impressive survival statistics notwithstanding, any organ transplantation is still associated with a variety of possible complications. Prominent among the causes of morbidity and morality is the occurrence of infection, primarily due to the intensive immunosuppression. The diagnosis and treatment of infections are thus of paramount importance to the success of a transplantation programme.

Bacterial Infections↗
PubMed1993

[Allogeneic bone marrow transplantation in adult patients with serious hematological diseases 1985-1992].

We present updated results from allogeneic bone marrow transplantation in adult patients who received transplants between 1985 and 1992. Of 47 patients, 36 where disease-free survivors 8-93, mean 32 months after transplantation. Of these, seven had received marrow from unrelated donors. The present treatment capacity is insufficient to cover the demand for allogeneic bone marrow transplants for Norwegian patients.

Adolescent↗
PubMed1993

The impact of acute rejection episodes on long-term graft function and outcome in 1347 primary renal transplants treated by 3 cyclosporine regimens.

To characterize factors of importance for the occurrence of acute rejection as well as study the impact of these episodes on long-term renal survival and function, a total of 819 acute rejection episodes were studied in 951 primary cadaveric donor kidney recipients (CD) and in 396 primary living donor kidney recipients (LD). The patients were treated by three immunosuppressive schedules, namely, CsA given in a high dose, a medium dose, or a low dose. Additionally, all patients received PRED and patients in the low-dose group received AZA. The incidence of acute rejection was higher and occurred earlier after transplantation in the CsA medium dose and low dose groups than in the CsA high dose group (P < 0.05 and P < 0.01, respectively). Although the incidence of first acute rejection was similar in CD and LD patients, 59.1% vs. 60.6%, it was successfully reversed by antirejection treatment in a higher percentage in LD patients. The estimated graft half-life was shorter in patients who had acute rejection episodes than those who did not, 6.6 years vs. 12.5 years in CD patients (P < 0.0001). Renal function at 1-5 years after transplantation was stable, but significantly poorer in CD patients who had experienced acute rejection than in patients who had not, with the mean creatinine clearance rates in the ranges 45-47 vs. 54-60 ml/min in the other groups (P < 0.0001). In a stepwise Cox regression analysis in CD recipients, risk factors for acute rejection were CsA (low dose) treatment schedule, immunization as displayed by presence of panel-reactive antibodies and positive B cell cross-match, young recipient age, disease of diabetes mellitus, and HLA-DR mismatching. In LD recipients, the corresponding risk factors were treatment schedule, young recipient, HLA mismatching, and transplantation from parent to child. Thus, the study has demonstrated some factors of importance for acute rejection episodes in CsA-treated patients as well as showing the detrimental effect of these episodes on long-term graft survival and renal function. These results suggest that a primary aim of future treatment strategies should be to reduce the incidence of these episodes.

Adolescent↗
PubMed1992

Fibro-muscular renal artery disease treated by extracorporeal vascular reconstruction and renal autotransplantation: short- and long-term results.

Over a 16-year period (1973-1989), 63 renal autotransplants were performed in 59 patients for fibro-muscular dysplasia (FMD) with renal artery stenoses (42 kidneys) or aneurysms (21 kidneys). About two-thirds of the autotransplants were performed before percutaneous transluminal angioplasty (PTA) was established for clinical use. However, vascular disease at a site or type not suitable for PTA was present in 57 (90%) of the kidneys. Hypertension was the leading symptom in 56 patients, including four in whom renal autotransplantation was performed as an emergency for acute renal artery occlusion or malignant hypertension. Blood pressure returned to normal or improved in 51 (91%) and remained unchanged in five patients (9%) following autotransplantation. Three patients with renal artery aneurysm in whom haematuria and loin pain were the indications for treatment, became asymptomatic following surgical intervention. Bilateral renal autotransplantation was performed synchronously in one and sequentially in three patients. There were no operative deaths, but two kidneys were lost postoperatively in two 2-year-old children owing to renal vascular thrombosis. In the follow-up period (mean 4.3 years), one additional kidney was lost at 3 months owing to progressive FMD. Blood pressure and renal function remained stable in all other patients. Based on the excellent results achieved in this series, it is concluded that extracorporeal vascular repair and renal autotransplantation is a safe procedure for the patient as well as the kidney affected by FMD. The procedure is advocated as an alternative to in situ reconstruction in patients with renal artery disease not accessible to PTA, such as aneurysms and complex branch renal artery stenoses.

Adolescent↗
PubMed1992

A randomized trial of cyclosporine and prednisolone versus cyclosporine, azathioprine, and prednisolone in primary cadaveric renal transplantation.

A randomized trial was performed with the aim to compare two immunosuppressive treatment schedules in adult recipients of first cadaveric renal transplants. A total of 229 patients were randomized to double therapy with cyclosporine and prednisolone and 234 patients were randomized to triple therapy with cyclosporine, azathioprine, and prednisolone. Minimum follow-up was 4 years. The actuarial 5-year patient survival was 79.8% in the double therapy group and 82.3% in the triple therapy group (n.s.). The corresponding graft survival figures were 54.4% and 59.6% in the two groups, respectively (n.s.). There were no differences between the groups regarding cause of death or cause of graft loss. Renal function as determined by serum creatinine did not differ between the groups and was stable throughout the observation period. Azathioprine was instituted in a total of 51 patients randomized to double therapy. This subgroup of patients had a patient and graft survival not different from the remaining patients randomized to double therapy or from the patients randomized to triple therapy. There were no differences between the double and triple therapy groups regarding incidence and timing of acute rejection or infections. The incidence of other medical diseases and adverse events such as nephrotoxicity or malignancy did not differ between the groups. Azathioprine-induced leukopenia was uncommon (19 episodes in the triple therapy group). In a multivariate analysis of the whole series the only covariates that significantly influenced graft survival were age of recipient and occurrence of acute rejection, while among other factors treatment schedule did not. Thus this prospective study, in accordance with previous such studies, failed to find support for the use of triple therapy as first choice immunosuppression in first cadaveric renal transplantation. However, the study could not rule out the possibility that some patients at risk for the development of irreversible rejection or nephrotoxicity of CsA might benefit from the addition of azathioprine to the treatment schedule.

Adult↗
PubMed1992

Results of the National Kidney Transplantation Program in Norway.

1. Of 2,003 patients starting renal replacement therapy for end-stage renal disease in Norway from 1983 through 1991, 83% were candidates for transplantation. The need for transplantations increased to 58 (50 first and 8 repeat) grafts PMP per year as the number of elderly patients increased. 2. There were 1,528 transplants performed at a rate increasing to 46 grafts PMP per year. The grafts were procured from LDs in 44% and CDs in 56%. Eighty percent of all patients in need were transplanted and 65% of all patients requiring replacement therapy for end-stage renal disease were treated by transplantation. The national waiting list and dialysis population remained almost stable. 3. Graft survival rates in recipients of first LD grafts (n = 593) were 91% and 77% at 1 and 5 years, respectively. One-year graft survival was 98% in HLA-identical grafts (n = 73), 91% in haploidentical grafts (n = 411), 89% in 2 haplotype-mismatched related grafts (n = 38), and 85% in spousal donor grafts (n = 71). Higher rates were observed in younger (< 55 yrs) patients. 4. Graft survival rates in recipients of first CD grafts (n = 688) were 78% and 59% at 1 and 5 years, respectively. The rates were 84% and 66% in younger (n = 342) versus 72% and 52% in older (> 55 years) (n = 346) patients. Death with a functioning graft caused approximately 45% and 75% of all graft losses in younger and older patients, respectively. Cardiovascular disease was the major cause of death.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1991

[Allogeneic bone marrow transplantation in adults. Results after fractionated whole body irradiation and high dosage cyclophosphamide and use of HLA-compatible sibling donors].

We present short and long-term results of allogeneic bone marrow transplantation after hyper-fractionated total body irradiation and high dose cyclophosphamide in ten patients treated for leukaemia during the period 1985-89. Three patients died from complications connected to the transplantation, while seven are living free from leukaemia 18 to 59 months after transplantation (mean 41 months). Two patients need treatment for chronic graft versus host disease. Allogeneic bone marrow transplantation is expensive and risky. Close cooperation between clinicians and laboratory specialists is essential. The treatment increases long term survival and probably cures certain patients with leukaemia. Some of these patients will need treatment for chronic graft versus host disease and other late sequelae.

Adult↗
PubMed1991

[New therapeutic possibilities for leukemia in adults. Indications and progress measures for allogeneic bone marrow transplantation].

Marrow ablation with cytotoxic drugs and/or total body irradiation followed by allogeneic bone marrow transplantation from an HLA-identical sibling cures many patients with acute and chronic myeloid leukaemia. We have obtained good results with this treatment. Up to now the necessary funds to cover the minimal requirements for transplantations in Norway have not been granted. It is now possible to use unrelated, HLA-matched donors, which will more than double the need for allogeneic bone marrow transplantations within a few years. This article discusses indications, results, costs and practical procedures connected to allogeneic bone marrow transplantation for leukaemia in adults.

Adolescent↗
PubMed1991

The use of elderly living donors in renal transplantation.

The safety and the results of using living donors above the age of 60 years were studied. In 235 consecutive donors the complications were not different in elderly (n = 70) compared to younger donors. Graft survival and function were studied in 232 consecutive 1-HLA-haplotype mismatched grafts. Graft survival at 1 year was equivalent (87% vs. 92%), but after 2-6 years graft survival was inferior in recipients of older grafts (n = 62). The recipients of older grafts were 10 years older, and patient death with functioning graft was a more frequent cause of graft loss. Up to 4 years serum creatinine levels were significantly higher, but stable, in recipients of older grafts; at 5 years the difference was not significant. It is concluded that the use of elderly living donors is safe. Taking recipient age into consideration, graft survival is not different in the two groups. Graft function in older grafts is some what inferior, but stable.

Adult↗