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SGLT2 inhibitors associated with lower all-cause mortality in heart transplant recipients with type 2 diabetesSGLT2 inhibitors associated with lower mortality in heart transplant patients

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Key Takeaway
Note that SGLT2 inhibitors are associated with lower mortality in heart transplant recipients with type 2 diabetes.

The researchers conducted a meta-analysis to evaluate the clinical outcomes of SGLT2 inhibitor use among heart transplant recipients who also have type 2 diabetes. The primary focus was on all-cause mortality, while secondary outcomes included changes in estimated glomerular filtration rate and the incidence of urinary tract infections.

The analysis reported that patients using SGLT2 inhibitors experienced a lower risk of all-cause mortality compared to those not using the medication. Additionally, the data suggested that renal function remained stable or improved in these patients. The authors also noted that there was no increased risk of urinary tract infections among the cohort receiving SGLT2 inhibitors.

However, the authors acknowledge that the findings are based on observational data, which presents inherent limitations regarding causality. While the results suggest potential benefits for both mortality and renal health in this specific patient population, clinicians should weigh these associations against the known risks of heart transplant management. The study provides a basis for further investigation into SGLT2 inhibitors as a supportive therapy for this complex patient group.

Researchers analyzed data from 3,564 heart transplant recipients who also had type 2 diabetes. The study looked at the impact of using SGLT2 inhibitors, a class of medications often used to manage blood sugar and protect kidney function.

The findings showed that patients taking these medications had a significantly lower risk of all-cause mortality compared to those who did not. Additionally, the data suggested that kidney function remained stable or improved in these patients. Importantly, there was no increased risk of urinary tract infections (UTIs) for those using the medication.

Because this was an observational study, it shows a link between the medication and better outcomes rather than proving the medicine caused the change. While the results are encouraging for managing both heart health and diabetes, individual results can vary. Patients should talk to their doctors about how these findings might apply to their specific treatment plan.

What this means for you:
SGLT2 inhibitors were linked to lower mortality in heart transplant patients with type 2 diabetes.

Common questions

Can SGLT2 inhibitors help people with both a heart transplant and diabetes?

This study of 3,564 patients found that those taking SGLT2 inhibitors had a lower risk of all-cause mortality. The data also suggested these medications may help maintain or improve kidney function (eGFR) in patients who have both heart transplant history and type 2 diabetes.

Do SGLT2 inhibitors cause more urinary tract infections?

The study found no increased risk of urinary tract infections (UTI) for patients using SGLT2 inhibitors. The results showed an odds ratio of 0.77 with a p-value of 0.75, meaning the medication did not appear to increase infection rates in this group.

Is this study's evidence definitive for my treatment?

This was an observational study, which means it shows a link between SGLT2 inhibitors and lower mortality rather than proving direct cause. Because of these limitations, you should discuss your specific health needs and medications with your doctor.

Study Details

Study typeMeta analysis
EvidenceLevel 1
Follow-up83.0 mo
PublishedJun 2026
View Original Abstract ↓
Sodium-glucose cotransporter 2 inhibitors (SGLT2i) are recommended for multiple populations-type 2 diabetes (T2D), chronic kidney disease, and heart failure-but their role after heart transplant (HTX) remains unclear. We searched PubMed, Cochrane, and Embase for studies of HTX recipients with T2D comparing outcomes in SGLT2i users vs. non-users. Outcomes of interest were all-cause mortality, urinary tract infection (UTI), and estimated glomerular filtration rate (eGFR) change from baseline. Odds ratios (ORs) and adjusted hazard ratios (aHRs) with 95% confidence intervals (CIs) were pooled using a random-effects model for binary outcomes. Three retrospective observational studies were included in the all-cause mortality meta-analysis, four in the UTI incidence meta-analysis, and five in the qualitative analysis evaluating eGFR change (n = 3,564). Mean follow-up ranged from 9 to 83 months. SGLT2i use was associated with a lower risk of all-cause mortality compared with non-use in both unadjusted (OR 0.43; 95% CI 0.26-0.71; p < 0.001; I² = 79%) and adjusted analyses (aHR 0.69; 95% CI 0.51-0.93; p = 0.02; I² = 20%), without increasing the risk of UTI (OR 0.77; 95% CI 0.14-4.05; p = 0.75; I² = 48%). Most studies suggested stable or increased eGFR from baseline with SGLT2i exposure. SGLT2i use, compared with non-use, was associated with lower all-cause mortality without an increased incidence of UTIs in HTX recipients with T2D. Additionally, the pooled data suggest a possible renal benefit. The totality of these observational data, despite their limitations, provide important context for ongoing SGLT2i use following HTX.
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