Transplantation · 2013
Do echocardiographic parameters predict mortality in patients with end-stage renal disease?
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Stallworthy Elizabeth J, Pilmore Helen L, Webster Mark W I, Sidhu Karishma K, Curry Elizabeth M, Brown Pieta, Scaria Anish
Аннотация
BACKGROUND: Left ventricular function predicts cardiovascular mortality both in the general population and those with end-stage renal disease. Echocardiography is commonly undertaken as a screening test before kidney transplantation; however, there are little data on its predictive power.
METHODS: This was a retrospective review of patients assessed for renal transplantation from 2000 to 2009. A survival analysis using demographic and echocardiographic variables was undertaken using the Cox proportional hazards regression model.
RESULTS: Of 862 patients assessed for transplantation, 739 had an echocardiogram and 217 of 739 (29%) died during a mean follow-up of 4.2 years. In a multivariate survival analysis, increased age (P<0.0001), diabetes (P<0.0001), transplant listing status (P<0.0001), severely impaired left ventricular function (P<0.01), pulmonary hypertension and/or right ventricular dysfunction (P=0.01), and regional wall motion abnormalities (P<0.01) were associated with all-cause mortality. Combined in a score where one point was given for the presence of each of the parameters above, these factors were strongly predictive of increased mortality with a hazard ratio of 3.57, 6.80, and 44.47 for the presence of one, two, or more factors, respectively, compared with the absence of any of these factors.
CONCLUSIONS: In patients with end-stage renal disease, multiple easily determined echocardiographic parameters, including regional wall motion abnormalities and pulmonary hypertension and/or right ventricular dysfunction, were independently associated with all-cause and cardiovascular mortality. Combining these factors in a simple score may further assist in risk stratifying patients being considered for renal transplantation.
METHODS: This was a retrospective review of patients assessed for renal transplantation from 2000 to 2009. A survival analysis using demographic and echocardiographic variables was undertaken using the Cox proportional hazards regression model.
RESULTS: Of 862 patients assessed for transplantation, 739 had an echocardiogram and 217 of 739 (29%) died during a mean follow-up of 4.2 years. In a multivariate survival analysis, increased age (P<0.0001), diabetes (P<0.0001), transplant listing status (P<0.0001), severely impaired left ventricular function (P<0.01), pulmonary hypertension and/or right ventricular dysfunction (P=0.01), and regional wall motion abnormalities (P<0.01) were associated with all-cause mortality. Combined in a score where one point was given for the presence of each of the parameters above, these factors were strongly predictive of increased mortality with a hazard ratio of 3.57, 6.80, and 44.47 for the presence of one, two, or more factors, respectively, compared with the absence of any of these factors.
CONCLUSIONS: In patients with end-stage renal disease, multiple easily determined echocardiographic parameters, including regional wall motion abnormalities and pulmonary hypertension and/or right ventricular dysfunction, were independently associated with all-cause and cardiovascular mortality. Combining these factors in a simple score may further assist in risk stratifying patients being considered for renal transplantation.