Association of pre-transplant blood pressure with post-transplant outcomes

Autor: Csaba P. Kovesdy, Adam Remport, Kamyar Kalantar-Zadeh, Clarence E. Foster, Miklos Z. Molnar, Mahesh Krishnan, John J. Sim
Rok vydání: 2013
Předmět:
Zdroj: Clinical Transplantation. 28:166-176
ISSN: 0902-0063
DOI: 10.1111/ctr.12292
Popis: Author(s): Molnar, Miklos Z; Foster, Clarence E; Sim, John J; Remport, Adam; Krishnan, Mahesh; Kovesdy, Csaba P; Kalantar-Zadeh, Kamyar | Abstract: BackgroundPrevious studies have indicated U-shaped associations between blood pressure (BP) and mortality in dialysis patients. We hypothesized that a similar association exists between pre-transplant BP and post-transplant outcomes in dialysis patients who undergo successful kidney transplantation.MethodsData from the Scientific Registry of Transplant Recipients were linked to the five-yr cohort of a large dialysis organization in the United States. We identified all dialysis patients who received a kidney transplant during this period. Unadjusted and multivariate adjusted predictors of transplant outcomes were examined.ResultsA total of 13 881 patients included in our study were 47 ± 14 yr old and included 42% women. There was no association between pre-transplant systolic BP and post-transplant mortality, although a decreased risk trend was observed in those with low post-dialysis systolic BP. Compared to patients with pre-dialysis diastolic BP 70 to l80 mmHg, patients with pre-dialysis diastolic BP l50 mmHg experienced lower risk of post-transplant death (hazard ratios [HR]: 0.74, 95% CI: 0.55-0.99). However, compared to patients with post-dialysis diastolic BP 70 to l80 mmHg, patients with post-dialysis diastolic BP ≥100 mmHg experienced higher risk of death (HR: 3.50, 95% CI: 1.57-7.84). In addition, very low (l50 mmHg for diastolic BP and l110 mmHg for systolic BP) pre-transplant BP was associated with lower risk of graft loss.ConclusionsLow post-dialysis systolic BP and low pre-dialysis diastolic BP are associated with lower post-transplant risk of death, whereas very high post-dialysis diastolic BP is associated with higher mortality in kidney transplant recipients. BP variations in dialysis patients prior to kidney transplantation may have a bearing on post-transplant outcome, which warrants additional studies.
Databáze: OpenAIRE