Original Contribution
Am J Hypertens (2001) 14, 1012–1018; doi: S0895-7061(01)02144-6
Effect of parathyroid hormone levels on carotid intima–media thickness after renal transplantation
Barbara Suwelack1, Ulf Gerhardt1, Jan Witta1, Uta Hillebrandt1 and Helge Hohage1
1Medical Department D, University of Münster, Münster, Germany
Correspondence: Dr. Helge Hohage, Medizinische Poliklinik, Albert-Schweitzer-Strasse 33, D-48149 Münster, Germany E-mail: hohage@uni-muenster.de
Received 22 September 2000; Accepted 1 March 2001.
Abstract
Background: The present study aimed to investigate the intact parathyroid hormone (iPTH)–dependent evolution of common carotid intima–media thickness (CC IMT) in renal transplant recipients (RTR) within a 12-month follow-up, ie, before (E0) and 3 months (E3), 6 months (E6), and 12 months after renal transplantation (RTX).
Methods: A total of 55 normotensive patients, aged 47
1.7 years, underwent a RTX. The graft function was stable (clearanceCockroft >60 mL/min and S-creatinine <2.5 mg/dL) in all patients throughout the follow-up.
Results: In 67% of the RTR, the iPTH levels were classified as high at E0 (E6: 63%; E6: 49%; E12: 67%). The plasma iPTH levels decreased after RTX (P < .01). The arterial blood pressure remained stable. The CC IMT was positively and independently correlated with age (P < .01), gender (P < .01), and iPTH levels (P < .01).
Conclusions: Normalization of iPTH levels is associated with a significant intima-media thickness (IMT) reduction. The increased IMT in renal transplant recipients may contribute to the high cardiovascular morbidity and mortality in patients with end-stage renal failure.
Keywords:
Intima-media thickness, wall to lumen ratio, kidney transplantation, parathyroid hormone
