PMID- 30656612 OWN - NLM STAT- MEDLINE DCOM- 20200101 LR - 20200101 IS - 1868-4297 (Electronic) IS - 1868-4297 (Linking) VI - 34 IP - 4 DP - 2019 Oct TI - Acquired von Willebrand syndrome in patients treated with veno-arterial extracorporeal membrane oxygenation. PG - 358-363 LID - 10.1007/s12928-019-00568-y [doi] AB - Veno-arterial extracorporeal membrane oxygenation (VA ECMO) is a powerful device for treatment of patients with life-threatening heart failure. Although bleeding is often associated with VA ECMO and sometimes results in a fatal outcome, its precise causes remain unknown. On the other hand, excessive high shear stress in the cardiovascular system causes acquired von Willebrand syndrome (aVWS), characterized by loss of von Willebrand factor (vWF) large multimers. vWF large multimers of five consecutive patients treated with VA ECMO were quantitatively evaluated using the vWF large multimer indices, defined as the ratio of the large multimer ratio of a patient to that of a healthy subject analyzed simultaneously. All 5 patients exhibited oozing type of bleeding at the skin insertion sites under treatment with PCPS at flow rates of 2.5-3.0 l/min/m(2), including two severe cases of bleeding; one patient had massive gastrointestinal bleeding and another had hemothorax. Their vWF large multimer indices were 20.8, 28.8, 27.6, 51.0, and 31.0% (means 31.8 +/- 11.4%). Surprisingly, these values are much lower than those observed in severe aortic stenosis reported previously by us (Tamura et al. in J Atheroscler Thromb 22:1115-1123, 2015), where vWF multimer indices in 31 severe aortic stenosis patients with peak pressure gradient through the aortic valves of 85.1 +/- 29.4 mmHg were 75.0 +/- 21.7% (p < 0.0001), indicating that much higher grade of aVWS occurred in patients with VA ECMO than severe aortic stenosis patients. All the 5 patients treated with VA ECMO developed aVWS that was much more severe than in patients with severe aortic stenosis. FAU - Tamura, Toshihiro AU - Tamura T AUID- ORCID: 0000-0001-8655-0203 AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. ttamu@tenriyorozu.jp. FAU - Horiuchi, Hisanori AU - Horiuchi H AD - Department of Molecular and Cellular Biology, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan. FAU - Obayashi, Yuki AU - Obayashi Y AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. FAU - Fuki, Masayuki AU - Fuki M AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. FAU - Imanaka, Miyako AU - Imanaka M AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. FAU - Kuroda, Maiko AU - Kuroda M AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. FAU - Nishimura, Shunsuke AU - Nishimura S AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. FAU - Amano, Masashi AU - Amano M AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. FAU - Sakamoto, Jiro AU - Sakamoto J AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. FAU - Tamaki, Yodo AU - Tamaki Y AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. FAU - Enomoto, Soichiro AU - Enomoto S AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. FAU - Miyake, Makoto AU - Miyake M AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. FAU - Kondo, Hirokazu AU - Kondo H AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. FAU - Izumi, Chisato AU - Izumi C AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. FAU - Nakagawa, Yoshihisa AU - Nakagawa Y AD - Department of Cardiology, Tenri Hospital, 200 Mishima-cho, Tenri, Nara, 632-8552, Japan. LA - eng PT - Journal Article DEP - 20190117 PL - Japan TA - Cardiovasc Interv Ther JT - Cardiovascular intervention and therapeutics JID - 101522043 SB - IM MH - Adult MH - Aged MH - Extracorporeal Membrane Oxygenation/*adverse effects MH - Female MH - Gastrointestinal Hemorrhage/etiology MH - Hemothorax/etiology MH - Humans MH - Male MH - Middle Aged MH - Myocardial Infarction/therapy MH - Myocarditis/therapy MH - Pulmonary Embolism/therapy MH - von Willebrand Diseases/*etiology OTO - NOTNLM OT - Acquired von Willebrand syndrome OT - Aortic stenosis OT - Bleeding OT - Large VWF multimer index OT - VA ECMO EDAT- 2019/01/19 06:00 MHDA- 2020/01/02 06:00 CRDT- 2019/01/19 06:00 PHST- 2018/11/08 00:00 [received] PHST- 2018/12/31 00:00 [accepted] PHST- 2019/01/19 06:00 [pubmed] PHST- 2020/01/02 06:00 [medline] PHST- 2019/01/19 06:00 [entrez] AID - 10.1007/s12928-019-00568-y [pii] AID - 10.1007/s12928-019-00568-y [doi] PST - ppublish SO - Cardiovasc Interv Ther. 2019 Oct;34(4):358-363. doi: 10.1007/s12928-019-00568-y. Epub 2019 Jan 17.