Blood pressure in renal transplant recipients: are there independent predictors for achieving target blood pressure?

BACKGROUND

Post-transplant hypertension is a major modifiable risk factor for graft and patient survival. The aim of this study was to establish independent predictors for achieving systolic, diastolic and overall blood pressure target [Kidney Disease Outcome Quality Initiative (K/DOQI) target blood pressure <130/80 mm Hg] in renal-transplant recipients (RTRs) and to consider whether current management strategies are adequate to achieve this aim.

METHODS

The most recent office blood pressure readings were collected for 513 RTRs at least 6 months after transplantation. In addition, demographic data, comorbidities, medications prescribed, weight, duration of transplantation, and laboratory parameters were recorded. Logistic regression analysis was used to determine whether any covariables were significant (p < 0.05) independent predictors of controlled blood pressure (<130/80 mm Hg).

RESULTS

Approximately 50% of the RTRs had blood pressures <130/80. There was a marked terminal digit preference demonstrated. Subjects who were female, had diabetes, did not have heart disease or had a lower albumin:creatinine ratio had a higher probability to achieve good blood pressure control. Diabetics were more likely to be prescribed 3 or more antihypertensive agents.

CONCLUSIONS

This study shows that improvements in blood pressure control can be achieved. People with diabetes were 2.1 times more likely to meet target blood pressure. Further improvements in blood pressure control may require different treatment strategies in addition to the current pharmacological approach.