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Outcome Predictors of Ultrafiltration in Patients with Refractory Congestive Heart Failure and Renal Failure

Departments of Cardiology and Medicine, St. Luke's Hospital, St. Louis, Missouri

Bakr I. Salem

Departments of Cardiology and Medicine, St. Luke's Hospital, St. Louis, Missouri

Maria P. DePawlikowski

Departments of Cardiology and Medicine, St. Luke's Hospital, St. Louis, Missouri

Manzoor Tariq

Departments of Cardiology and Medicine, St. Luke's Hospital, St. Louis, Missouri

Maged Haikal

Departments of Cardiology and Medicine, St. Luke's Hospital, St. Louis, Missouri

Thomas Pohlman

Departments of Cardiology and Medicine, St. Luke's Hospital, St. Louis, Missouri

Paul Mennes

Departments of Cardiology and Medicine, St. Luke's Hospital, St. Louis, Missouri

This study is an attempt to identify predictors of outcome from the use of ultrafiltration (UF) in patients with refractory congestive heart failure (CHF) and renal failure.

The authors studied 30 patients in NYHA functional class IV in whom UF was utilized in the management of refractory CHF. Patients were retrospectively divided into two groups according to their outcome. Group A included 12 patients who improved and survived hospital admission, and group B included 18 patients who did not respond and died shortly after UF. Clinical, hemodynamic, and laboratory data before UF were fairly comparable between both groups. Renal function and hemodynamic parameters were compared and analyzed within the same group and between both groups before and after UF.

The mean age in group A was sixty-three ±thirteen years while in group B it was seventy ±eleven years (P < 0.005). A mean of 9.6 liters of fluid were removed from group A and 3.2 liters from group B (P < 0.001). Group A showed greater reduction in the mean values of right atrial pressure (P < 0.005) and pulmonary capillary wedge pressure (P < 0.05) after UF. Additionally, group A showed a significant decrease in their blood urea nitrogen (P < 0.05) and serum creatinine values (P < 0.05), in contradistinction to group B patients who showed a major increase in those values after UF. There was no significant change in the mean values of cardiac index, systemic vascular resistance, and pulmonary vascular resistance after UF. (continued on next page)

These findings suggest that younger age groups, greater fluid removal, as well as significant decreases in blood urea nitrogen, serum creatinine, and right atrial and pulmonary wedge pressures after UF, are associated with favorable outcome. Conversely, older age groups, less fluid removal, and rising blood urea nitrogen and serum creatinine levels after UF were associated with poor outcome.

Angiology, Vol. 47, No. 5, 447-454 (1996)
DOI: 10.1177/000331979604700503


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