Pediatric Cardiology and Cardiac Surgery
Vol.25 No.1 2009 (27-33)

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Sachiko Yamaguchi and Kantarou Mizuno

Department of Pediatrics and Neonatology, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan


Background: We report the usefulness of an interlocking detachable coil (IDC) for therapeutic embolization in pediatric cardiac patients.
Methods: Between January 1999 and April 2007, we performed 22 embolizations using IDC in 19 cases of congenital heart disease, including pulmonary arteriovenous fistula (PAVF), to avoid displacement or migration of the coil; closing the artificial vessel for fenestration after fenestrated Fontan operation, collateral vein and left superior vena cava (LSVC) after bidirectional Glenn (BDG) or Fontan operation, coronary artery fistula, aorto-pulmonary collateral artery (APCA), and PAVF.
Results: Nine embolizations were carried out for APCA in 8 cases, 2 embolizations for closing artificial vessel for fenestration after fenestrated Fontan operation in 2 cases, 6 embolizations for closing collateral veins and LSVC after BDG or Fontan operation in 6 cases, 4 embolizations for PAVF in 3 cases, and 1 embolization for coronary artery-RV fistulas in pulmonary atresia with intact ventricular septum. All embolizations were accomplished with no accidental release, no migration or recanalization, even if the embolized segment had a short length, a similar caliber throughout its length, or a high blood-flow stream.
Conclusions: The IDC, a controlled coiling and releasing embolization device, is both stable and safe as a result of creating an appropriate shape for stability, therefore it is useful for the segments of short length, similar caliber throughout their length, and high blood flow stream with low risk of migration or displacement in congenital heart disease.