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Biomedical subjects

J H Hong

Publications and source records attributed to J H Hong.

164 records · Page 10Linked to original sources

Intermediate-term outcome of renal retransplants in the cyclosporine era.

To determine the influence of selected parameters on intermediate-term outcome of renal retransplants, univariate and multiple regression analyses were performed on all 100 consecutive cyclosporine treated retransplants performed between 1984 and 1990 (mean follow up, 4.6 +/- 2.3 years). Actual 1 year and actuarial 5 year graft survivals were higher in living compared with cadaver donor transplants (84% and 79% vs 69% and 56%, respectively; p < 0.05). Among cadaver donor transplant recipients, allografts with immediate early function had better 1 and 5 year graft survivals when compared with those with delayed function (81% and 62% vs 59% and 38%, respectively; p < 0.05). Recipients with acute rejection had inferior 1 year and 5 year graft survivals when compared with rejection free patients (65% and 35% vs 80% and 57%, respectively; p < 0.05). Graft survival time of primary transplants was also a significant predictor of retransplant outcome with 1 and 5 year graft survivals of 50% and 36%, respectively, in patients in whom primary grafts survived less than 3 months, compared with 75% and 58% in those in whom grafts survived longer than 3 months (p < 0.05). Recipient age, race, renal disease, and levels of panel reactive antibodies had no effect on intermediate-term outcome. In a multiple regression analysis, delayed graft function, acute rejection, and primary graft survival time less than 3 months correlated inversely with long-term survival of retransplants (multiple r = 0.65). A total of 39 grafts were lost due to rejection (22), sepsis (6), graft nonfunction (5), death with a functioning graft (4), noncompliance (1), and recurrent renal disease (1).(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗

Erythrocytosis after renal transplantation. A prospective analysis.

A prospective analysis of all cyclosporine treated renal transplants performed between 1987 and 1990 was performed to determine the incidence and etiologic factors of post transplant erythrocytosis (PTE) and its effect on short-term outcome. PTE developed in 25 (8.1%) recipients (mean age, 41 +/- 10 years). PTE occurred more frequently in men (12.8%) than women (1.6%) (p < 0.001), diabetic patients (22.9%) than nondiabetic patients (6.2%) (p < 0.001), and rejection-free recipients (11%) compared with those with early rejection (4%) (p < 0.05) but was independent of recipient race and donor source. Sixteen patients in whom PTE subsequently developed had pretransplant hematocrits above 30%. PTE occurred most frequently in the first year posttransplant (range, 2-29 months). Serum erythropoietin levels were inappropriately elevated in all patients (mean, 24 +/- 2.2 mU/ml), but serum iron, folate, and B12 levels were all normal. Mean serum creatinine and creatinine clearance were 1.7 +/- 0.5 mg/dl and 58 +/- 20 ml/min, respectively. Twenty-three patients underwent phlebotomy (mean, 3.5 +/- 0.5 units) and six had PTE-related complications. In 14 patients, PTE persisted with hematocrit of 53 +/- 1.5% (range, 51-56) compared with 57 +/- 2.6% (range, 54-64) at the time of PTE onset. In conclusion, PTE occurs primarily in the first year posttransplant and is characterized by inappropriate elevation of erythropoietin. Predictors for PTE include male gender, diabetes mellitus, pretransplant hematocrit above 30%, absence of rejection, and excellent renal allograft function.

Adult↗