Uterine necrosis after uterine artery embolization (UAE) for postpartum hemorrhage (PPH) is relatively rare. A 29-year-old primiparous woman had a diamniotic dichorionic twin pregnancy following frozen blastocyst transfer. She developed preeclampsia at 34 +3 weeks, and cesarean section was performed due to lung edema at 35 +2 weeks. UAE was performed using a gelatin sponge 3 hours after the operation due to PPH; however, the hemorrhage continued, and we performed a second UAE using n-butyl-2-cyanoacrylate. Uterine subinvolution continued after the second UAE, and her fever recurred 11 days after the operation. Magnetic resonance imaging suggested uterine necrosis 14 days after the operation, resulting in hysterectomy. The present study reviewed 17 cases of uterine necrosis following UAE in women with PPH, fever, abdominal /pelvic pain and found that delayed appearance of various symptoms was common. A long-lasting subinvolution may be a novel specific feature of uterine necrosis in women with UAE due to PPH.

Background Chronic liver disease (CLD) is often complicated by severe thrombocytopenia (platelet count < 50,000/µL). Platelet transfusion has been a gold standard for increasing the platelet count to prevent hemorrhagic events in such patients. Lusutrombopag, a thrombopoietin receptor agonist, can increase the platelet count in such patients when invasive procedures are scheduled. Former studies on lusutrombopag included patients with a platelet count of > 50,000/µL at baseline: the proportions of patients who did not require platelet transfusion were 84–96%, which might be overestimated. Methods The efficacy and safety of lusutrombopag were retrospectively investigated in CLD patients with platelet count of < 50,000/µL, a criterion for platelet transfusion, in real-world settings. We examined the proportion of patients who did not require platelet transfusion in 31 CLD patients, which exceeded a minimum required sample size (21 patients) calculated by 80% power at a significance level of 5%. Lusutrombopag, 3 mg once daily, was administered 8–18 days before scheduled invasive procedures. Results Among 31 patients who received lusutrombopag, 23 patients (74.2%) patients showed a platelet count of ≥ 50,000/µL (Group A) and did not require platelet transfusion. The remaining 8 patients (25.8%) did not reached platelet ≥ 50,000/µL (Group B). The means of platelet increase were 38,000/µL and 12,000/µL in groups A and B, respectively. A low platelet count at baseline was a characteristic of patients in group B. Among 13 patients who repeatedly used lusutrombopag, lusutrombopag significantly increased the platelet count as the initial treatment. When all repeated uses of lusutrombopag were counted among these 13 patients, platelet transfusion was not required in 82.1% (23/28) of treatments. Although one patient showed portal thrombosis after lusutrombopag treatment, the thrombosis was disappeared by anticoagulant treatment for 35 days. The degree of platelet increase with lusutrombopag was larger than that in their previous platelet transfusion. Conclusions The proportion of patients who did not require platelet transfusion was 74.2%, which is smaller than that in former studies which included CLD patients with a platelet count of > 50,000/µL. However, lusutrombopag is effective and safe for CLD patients with a platelet count of < 50,000/µL.

Background: Chronic liver disease (CLD) is often complicated by severe thrombocytopenia (platelet count <50,000/µL). Platelet transfusion has been a gold standard for increasing the platelet count to prevent hemorrhagic events in such patients. Lusutrombopag, a thrombopoietin receptor agonist, can increase the platelet count in such patients when invasive procedures are scheduled. However, we have little information on the effect of lusutrombopag in CLD patients with severe thrombocytopenia in real-world settings.Methods: To investigate the efficacy and safety of lusutrombopag in patients with chronic liver disease and severe thrombocytopenia, we retrospectively investigated 26 CLD patients with a platelet count of <50,000/µL. Lusutrombopag, 3 mg once daily, was administered 8-15 days before scheduled invasive procedures.Results: Among 26 patients who received lusutrombopag, 19 patients (73.1%) patients showed a platelet count of ≥50,000/µL (Group A) and did not require platelet transfusion. The remaining 7 patients (26.9%) did not reached platelet ≥50,000/µL (Group B). The means of platelet increase were 36,000/µL and 13,000/µL in groups A and B, respectively. A low platelet count at baseline was a characteristic of patients in group B. Among 13 patients who repeatedly used lusutrombopag, lusutrombopag significantly increased the platelet count as the initial treatment. No adverse events were noted during or after lusutrombopag treatment. In addition, the degree of platelet increase with lusutrombopag was larger than that in their previous platelet transfusion.Conclusions: Lusutrombopag is effective and safe for CLD patients with a platelet count of <50,000/µL.