Resolution of atrial thrombosis with heparin in a newborn with atrial flutter.
Atrial thrombosis is a relatively rare event in children. We report a case of a newborn with AFI who after restoration of sinus rhythm, developed atrial thrombus on a prominent Chiari network floating between the right and left atrium through the patent foramen ovale. The thrombus was resolved following treatment with heparin without events.


CONCLUSIONS
Atrial stunning was proposed as a key mechanistic phenomenon because the thrombus occurred after the cardioversion of AFI to sinus rhythm. Heparin may be effective in the resolution of atrial thrombus within a few days.
Bronzetti
Gabriele
G
Pediatric Cardiology and Adult Congenital Unit, University of Bologna, Bologna (BO), Italy. gabronz@hotmail.com
D'Angelo
Cinzia
C
Angelini
Andrea
A
Picchio
Fernando Maria
FM
Boriani
Giuseppe
G
D000638:Amiodarone / Q000627:therapeutic use; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D001282:Atrial Flutter / Q000150:complications* / Q000188:drug therapy; D004077:Digoxin / Q000627:therapeutic use; D004562:Electrocardiography; D005343:Fibrinolytic Agents / Q000627:therapeutic use*; D006325:Heart Atria / Q000000981:diagnostic imaging; D006331:Heart Diseases / Q000175:diagnosis / Q000188:drug therapy* / Q000209:etiology; D006493:Heparin / Q000627:therapeutic use*; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D055502:Secondary Prevention; D013927:Thrombosis / Q000175:diagnosis / Q000188:drug therapy* / Q000209:etiology; D014463:Ultrasonography
D000889:Anti-Arrhythmia Agents; D005343:Fibrinolytic Agents; D004077:Digoxin; D006493:Heparin; D000638:Amiodarone