DPP4 and hydrops fetalis: Other meta-analysis that included 4 trials, which investigated the effects of saxagliptin, alogliptin, sitagliptin, and linagliptin, separately analyzed the hospitalization rate due to HF in patients with and without prior history of HF, and found that DPP-4 inhibitors did not elevated risk of hospitalization due to HF in patients with previous HF, but in those DM patients without previous HF [57].