not-yet-known not-yet-known not-yet-known unknown Cause analysis and nursing experience of a case of thrombus on Eustachian valve after PICC catheterization Guan-Jun Ye, Qian-Ru Zhu, Yan-Fen Yu, Chun-Ying Wang, Su-Pei Hu, Qin Zhou, Juan He Department of Nursing, No.2 Hospital, Ningbo, Zhejiang, China Address correspondence to: Guan-Jun Ye, Department of Nursing, No.2 Hospital, No. 41 Xibei Street, Ningbo 315000, Zhejiang, China. Tel: (86)-13958229524;E-mail: 17108879@qq.com [Abstract] In this article, we have summarized and analyzed the causes and nursing experience of thrombosis on the eustachian valve in the right atrium of a patient with advanced gastric cancer during chemotherapy after PICC insertion. The nursing points included organizing multi-disciplinary joint consultation, vigilance against pulmonary embolism, nursing with anticoagulant drugs, and individualized psychological nursing. Finally, after 22 days of active treatment, the thrombus almost disappeared. [Key words] PICC; Complications; Right atrial thrombus; Eustachian valve; Nursing Care