RESUMEN
Objective:To explore the case characteristics, treatment and prevention measures of cardiac thrombus in children caused by Mycoplasma pneumoniae infection, so as to improve the clinicians′ understanding of the disease.Methods:The clinical data of 10 children with cardiac thrombus caused by Mycoplasma pneumoniae infection treated in Department of Respiratory Intervention, Jinan Children′s Hospital from November 2015 to January 2020 were retrospectively analyzed, including datum of cases, laboratory results, imaging data and follow-up results.Results:A total of 10 children (7 males and 3 females) were included with the median age of 6.5 years old, and all had fever for more than 1 week.The plasma D-dimer (D-D) of 9 children was significantly increased, and the C-reactive protein (CRP) of 6 children was increased.After anti-infection treatment, the absorption of pneumonia with atelectasis was better than before.The embolus disappeared after operation in 1 case, and the remaining 9 cases received anticoagulant therapy, among which 7 cases received Heparin anticoagulant therapy alone: cardiac embolus disappeared during hospitalization in 2 cases, disappeared after 2 weeks of oral administration of Dipyridamole outside the hospital in 1 case, and the other 4 cases received Heparin anticoagulant therapy alone during hospitalization with poor effect, embolus disappeared in 2 cases 4 and 5 months after discharge respectively, and 2 cases were not reexamined due to personal reasons; the embolus disappeared 2 months after discharge in 2 cases who were changed to low-molecular weight Heparin + Warfarin anticoagulant therapy after failing to respond to Heparin anticoagulant therapy.All the 10 cases showed no symptoms of tachypnea or chest pain during telephone follow-up.Conclusions:Children with long fever time and significantly elevated CRP and D-D are more likely to form thrombus.Anticoagulant therapy is effective after thrombosis, and surgical thrombectomy can be performed in children who have failed to respond to anticoagulant therapy or worry about complications caused by dropped embolus.