Continuous Infusion versus Intermittent Bolus Injections of Furosemide in Congestive Heart Failure

Abstract

Loop diuretic therapy (Furosemide) plays a pivotal role in the treatment of CHF. Despite the lack of mutual agreement about the best approach to use Furosemide in CHF, its demonstrated efficacy and the long clinical experience with it suggest that it will remain an integral part in management of the CHF. Ongoing investigation into the optimal strategy to administer furosemide is a must to maintain its efficacy and minimize its adverse effects. In our study we tried to distinguish the most useful method of Furosemide administration whether continuous infusion or intermittent bolus injections. 40 patients (31 males and 9 females) admitted with a diagnosis of CHF were randomized in 1:1 ratio into either continuous infusion or intermittent boluses of Furosemide. On patient admission, detailed history was taken including symptoms, risk factors and etiology. Clinical examination was performed to detect rales, other signs of pulmonary edema and peripheral edema. Body weight measurement was taken as a baseline. All patients were submitted to CXR, echocardiography and laboratory assessment of renal function and electrolytes.

Patients were then compared daily regarding BWL, UOP and clinical improvement of pulmonary rales. They were monitored for electrolytes disturbance, renal function deterioration and hemodynamic instability for first 72 hours after admission. The length of ICU stay and mortality were observed as well.