Pericardial tamponade by Holter ventriculoatrial shunts

Abstract

✓ Ten cases of cardiac tamponade caused by pericardial perforation by a Holter catheter in the treatment of hydrocephalus by ventriculoatrial drainage are reported. These 10 cases occurred in an 8-year practice of two surgeons in a period during which approximately 1800 Holter shunts were inserted and an approximately equal number of operations for lengthening of the distal catheter were performed. The etiological factors, the clinical picture, and the diagnosis are discussed. Cardiac perforation is caused either by forceful introduction of the distal catheter during a shunt revision procedure or by too long a distal catheter that ulcerates through the cardiac wall. Enlargement of cardiac silhouette after shunt insertion is virtually diagnostic of a pericardial effusion. If undiagnosed, this condition was invariably fatal, but if diagnosed in time, immediate treatment was always curative. The distal catheter should be shortened, but suture of the cardiac perforation itself is not necessary.