BACKGROUND:Intravenous nitrate therapy has been shown to improve short-term outcome of acute heart failure patients treated in the intensive care unit. The potential of a noninvasive high-dose nitrate strategy in the Emergency Department and the general ward remains unknown. METHODS: A total of 128 consecutive acute heart failure patients were either treated with standard therapy or high-dose sublingual and transdermal nitrates on top of standard of care treatment. Cardiac recovery, quantified by B-type natriuretic peptide (BNP) levels during the first 48 h, was the primary endpoint. Secondary endpoints ascertained the safety of the nitrate therapy. RESULTS: The high nitrate group received higher doses of nitrates during the first 48 h compared to the standard therapy group [82.4 mg (46.2-120.6) vs. 20 mg (10-30) respectively, P < 0.001]. The amount of diuretics given in both groups was similar. BNP levels decreased in all patients (P < 0.0001). However, the BNP decrease was larger in the high-dose nitrate group (P < 0.0001). The larger decrease in BNP in the high-dose nitrate group was already apparent 12 h after the initiation of treatment. After 48 h BNP values decreased by an average of 29 +/- 4.9% in the high-dose nitrate strategy group compared to 15 +/- 5.4% during standard therapy. There was a strong trend towards fewer ICU admissions in the high-dose nitrate group [high-dose nitrates: 2 cases (4%) vs. standard therapy: 9 cases (13%); P = 0.06]. During the study period, no intergroup changes were observed in blood pressure, RIFLE classes of acute kidney injury or troponin T. In-hospital and 90-day outcome was similar amongst the two groups. CONCLUSIONS: A noninvasive high-dose nitrate strategy on top of standard therapy is safe and notably accelerates cardiac recovery in patients observed on the general ward.
RCT Entities:
BACKGROUND: Intravenous nitrate therapy has been shown to improve short-term outcome of acute heart failurepatients treated in the intensive care unit. The potential of a noninvasive high-dose nitrate strategy in the Emergency Department and the general ward remains unknown. METHODS: A total of 128 consecutive acute heart failurepatients were either treated with standard therapy or high-dose sublingual and transdermal nitrates on top of standard of care treatment. Cardiac recovery, quantified by B-type natriuretic peptide (BNP) levels during the first 48 h, was the primary endpoint. Secondary endpoints ascertained the safety of the nitrate therapy. RESULTS: The high nitrate group received higher doses of nitrates during the first 48 h compared to the standard therapy group [82.4 mg (46.2-120.6) vs. 20 mg (10-30) respectively, P < 0.001]. The amount of diuretics given in both groups was similar. BNP levels decreased in all patients (P < 0.0001). However, the BNP decrease was larger in the high-dose nitrate group (P < 0.0001). The larger decrease in BNP in the high-dose nitrate group was already apparent 12 h after the initiation of treatment. After 48 h BNP values decreased by an average of 29 +/- 4.9% in the high-dose nitrate strategy group compared to 15 +/- 5.4% during standard therapy. There was a strong trend towards fewer ICU admissions in the high-dose nitrate group [high-dose nitrates: 2 cases (4%) vs. standard therapy: 9 cases (13%); P = 0.06]. During the study period, no intergroup changes were observed in blood pressure, RIFLE classes of acute kidney injury or troponin T. In-hospital and 90-day outcome was similar amongst the two groups. CONCLUSIONS: A noninvasive high-dose nitrate strategy on top of standard therapy is safe and notably accelerates cardiac recovery in patients observed on the general ward.
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Authors: Edwin C Ho; John D Parker; Peter C Austin; Jack V Tu; Xuesong Wang; Douglas S Lee Journal: J Am Heart Assoc Date: 2016-02-12 Impact factor: 5.501