Abstract
BackgroundSodium glucose transporter 2 inhibitors (SGLT-2i) have shown safety and efficacy in patients with heart failure (HF). However, evidence for the use of SGLT-2i in adult congenital heart disease (ACHD) patients with HF is limited. MethodsWe performed a retrospective, single center analysis of 18 patients (>18 years of age) with ACHD and a diagnosis of HF who were initiated on an SGLT-2i. Patient characteristics, including vital signs, laboratory values, concomitant medications, clinical outcomes, and echocardiograms, were obtained as part of standardized clinical care at our ACHD program before and 2–6 months after initiation of SGLT-2i. The primary outcome was to demonstrate safety of SGLT-2i initiation via potential changes in systolic blood pressure, serum sodium, and serum creatinine. ResultsOf the 18 patients, 11 (61%) had moderate complexity congenital heart disease while 7 (39%) had great complexity congenital heart disease. Post initiation, there were no significant differences in systolic blood pressure (121.8 ± 20.8 mmHg to 114.4 ± 14.9 mmHg, p = 0.06), sodium level (138.7 ± 2.9 mMol/L to 138.0 ± 2.2 mMol/L, p = 0.75), and creatinine level (0.85 ± 0.18 mg/dL to 0.89 ± 0.18 mg/dL, p = 0.07). There was a statistically significant decline in weight (78.9 ± 22.9 kg to 76.0 ± 23.0 kg, p = 0.0039) but without a statistically significant change in NT-pro NBP (1358.2 ± 2735.0 pg/mL to 601.6 ± 786.1 pg/mL, p = 0.36). ConclusionsWe demonstrated the use of SGLT-2i in a small cohort of ACHD population, including patients with complex congenital heart disease, appears safe and well tolerated. The safety and potential efficacy of SGLT-2i in patients with ACHD will require further evaluation in prospective multicenter studies.
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