Congenital tumor of atrioventricular node with complete heart block and sudden death

Cystic tumour of the atrioventricular node: case report and literature review

“…Typical symptoms include palpitations, dyspnoea, syncope and dizziness [5–7] and partial or complete heart block [6, 8–10]. A patient presenting with syncopal episodes followed by seizures has been misdiagnosed with epilepsy [7]. Many patients [4–11], including ours, have died despite pacemaker placement.…”

Sudden death due to a cystic atrio-ventricular node tumour

“…If the relation between AV node benign tumor and strokes are unknown, similar occurrence have been already described. 22,23 Our report is the fifth case of sudden death in patients with pace maker. The post mortem macroscopic examination of the heart could only show a non-specific hypertrophic cardiomyopathy related to previous arrhythmia episodes.…”

“…14e20 Some cases concerned arrhythmiarelated deaths but time between death and pacemaker implantation considerably varied from 3 h 21 to several years. 22,23 Except for the shortest delay for which Lafargue 21 made the hypothesis of a terminal arrhythmia directly caused by the haemorrhage produced by the pace maker insertion, other deaths were attributable to a ventricular tachycardia or to a ventricular fibrillation.…”

Successful excision of an atrial fibroma in a four-month-old male infant

“…Tumors may cause obstruction, cyanosis, congestive heart failure, shock, and sudden death [1,10,16,26,28]. They may also present as arrhythmias or heart block [15,22]. In some children, only a nonspecific murmur is heard or an abnormal cardiac silhouette seen on chest X-ray [8,26].…”