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Clinical impact of preexisting vascular calcifications on mortality after renal transplantation

Domingo Hernández1, Margarita Rufino, Sergio Bartolomei

  • 1Nephrology Section, Research Unit, Hospital Universitario de Canarias, Instituto Reina Sofia de Investigación, La Laguna, Tenerife, Spain. dhmarrero@hotmail.com

Kidney International
|April 21, 2005
PubMed

Insights

Vascular calcifications (VC) before renal transplantation (RT) predict higher mortality. Simple radiography can identify this risk, prompting targeted therapies for non-diabetic patients post-transplant.

Area of Science:

  • Nephrology
  • Cardiology
  • Transplantation Medicine

Background:

  • Vascular calcifications (VC) are a known cardiovascular risk factor (CVRF) in patients with uremia.
  • The impact of VC on mortality following renal transplantation (RT) remains unclear.

Purpose of the Study:

  • To investigate the association between preoperative vascular calcifications (VC) and long-term survival in renal transplantation (RT) recipients.
  • To determine if VC are an independent predictor of mortality after RT.

Main Methods:

  • A cohort of 1117 renal transplantation (RT) recipients was analyzed.
  • Vascular calcifications (VC) were assessed using preoperative posteroanterior plain radiography of the aorto-iliac region.
  • All-cause mortality was the primary outcome; cardiovascular risk factors (CVRF) and mortality causes were recorded.

Main Results:

  • Vascular calcifications (VC) were present in 24.4% of patients before RT.
  • Patients with VC had higher rates of overall mortality (19% vs. 9.5%) and cardiovascular mortality (9.5% vs. 3.1%).
  • Multivariate analysis confirmed VC as an independent predictor of overall and cardiovascular mortality, particularly in non-diabetic patients.

Conclusions:

  • Preoperative vascular calcifications (VC), assessed by plain radiography, independently predict cardiovascular and all-cause mortality after renal transplantation (RT).
  • These findings support the use of simple radiography for risk stratification and may guide therapeutic strategies in post-transplant patients.
Abstract

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