Association between pulse pressure and cardiovascular disease in renal transplant patients

Gema Fernández-Fresnedo1, Rafael Escallada, Angel Luis Martin de Francisco

  • 1Nephrology Service, University Hospital Marqués de Valdecilla, Santander, Spain. nefffg@humv.es

Insights

Elevated pulse pressure (PP) is a significant risk factor for cardiovascular disease (CVD) in kidney transplant recipients. Higher PP is linked to increased CVD morbidity and mortality, underscoring the need for careful monitoring post-transplant.

Area of Science:

  • Nephrology
  • Cardiology
  • Transplantation Medicine

Background:

  • Cardiovascular disease (CVD) is the leading cause of death in renal transplant patients.
  • Elevated pulse pressure (PP) is a known risk factor for CVD in the general population.

Purpose of the Study:

  • To investigate the impact of a wider pulse pressure range on cardiovascular disease after renal transplantation.
  • To analyze patient and graft survival, post-transplant CVD, and causes of death in relation to PP.

Main Methods:

  • Study included 532 renal transplant patients with functioning grafts for over 1 year.
  • Patients were grouped based on 1-year pulse pressure (< or ≥65 mmHg).
  • Analysis included patient/graft survival, CVD incidence, and mortality causes using Cox regression.

Main Results:

  • Higher PP group associated with older age, higher systolic BP, and increased diabetes prevalence.
  • Higher PP group showed significantly higher total CVD (33.6% vs. 20.9%).
  • Five- and 10-year patient survival rates were lower in the higher PP group; vascular disease was the primary cause of death.

Conclusions:

  • Pulse pressure is an independent risk factor for increased cardiovascular morbidity and mortality in renal transplant patients.
  • Higher PP independently predicts higher CVD risk (RR = 1.73, p < 0.01).
  • Monitoring and managing PP is crucial for improving outcomes in kidney transplant recipients.

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