COMPARATIVE MORTALITY FROM CARDIOVASCULAR-DISEASE IN PATIENTS WITH CHRONIC-RENAL-FAILURE

Patients with chronic renal failure show an excess mortality from cardiovascular disease (CVD). Over a 4-year period (1983-1986) we have prospectively studied 305 patients (177 men, 128 women) from a geographically constrained population entering a renal replacement therapy (RRT) programme. The development of new cardiovascular events and patient survival have been documented up to the end of 1990. We have determined the incidence of CVD amongst the patients compared to the general population of the region and assessed the predictive value for future cardiovascular events of risk factors present at the start of RRT. One hundred and fourteen patients experienced a new cardiovascular event. One hundred and fifteen patients died, 89 from CVD. Stratification by age and sex identified diabetes, previous coronary heart disease, and cardiomegaly to be significantly associated with an increased risk of a cardiovascular event, and diabetes, previous coronary heart disease, and accelerated hypertension to be significantly associated with an increased risk of cardiovascular death. Mortality from CVD was 10.1 times that of the corresponding general population, and was increased 44 times for patients with diabetes. Duration of RRT did not influence mortality rates. This excessive early mortality has significant implications for RRT programmes and further research is necessary to identify individuals at risk and the modifiable risk factors that could receive targeted interventional therapy.