期刊
EUROPEAN JOURNAL OF HEART FAILURE
卷 23, 期 1, 页码 68-78出版社
WILEY
DOI: 10.1002/ejhf.2066
关键词
Acute heart failure; Sodium– glucose co‐ transporter 2 inhibitors; Empagliflozin; Diuresis; Kidney
资金
- Boehringer Ingelheim
In patients with acute heart failure, empagliflozin increased fractional glucose excretion and plasma osmolality, without affecting fractional sodium excretion or urine osmolality, and caused a temporary decline in estimated glomerular filtration rate. This suggests that empagliflozin stimulates osmotic diuresis through increased glycosuria rather than natriuresis in patients with acute heart failure.
Aims Sodium-glucose co-transporter 2 (SGLT2) inhibitors improve clinical outcome in patients with heart failure (HF), but the mechanisms behind their beneficial effects are not yet fully understood. We examined the effects of empagliflozin on renal sodium and glucose handling in patients with acute HF. Methods and results This study was a pre-defined sub-study of a double-blind, randomized, placebo-controlled, multicentre study (EMPA-RESPONSE-AHF). Patients were allocated within 24 h of an acute HF admission to either empagliflozin 10 mg/day (n = 40) or placebo (n = 39) for 30 days. Markers of glucose and sodium handling were measured daily during the first 96 h and at day 30. Patients were 76 (range 38-89) years old and 33% had diabetes. The use of loop diuretics during the first 96 h was similar in both groups. Empagliflozin increased fractional glucose excretion with a peak after 24 h (21.8% vs. 0.1%; P < 0.001), without affecting plasma glucose concentration, while fractional sodium and chloride excretion and urinary osmolality remained unchanged (P >0.3 for all). However, empagliflozin increased plasma osmolality (delta osmolality at 72 h: 5 +/- 8 vs. 2 +/- 5 mOsm/kg; P = 0.049). Finally, there was an early decline in estimated glomerular filtration rate with empagliflozin vs. placebo (-10 +/- 12 vs. -2 +/- 12 mL/min/1.73 m(2); P = 0.009), which recovered within 30 days. Conclusion In patients with acute HF, empagliflozin increased fractional glucose excretion and plasma osmolality, without affecting fractional sodium excretion or urine osmolality and caused a temporary decline in estimated glomerular filtration rate. This suggests that empagliflozin stimulates osmotic diuresis through increased glycosuria rather than natriuresis in patients with acute HF.
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