Complete Heart block during right IJV cannulation –An unusual complication: 2 Different Cases

Heart block and arrhythmia are complications of pulmonary artery and cardiac catheterization. Injury to the conducting system of the heart more often involves the right bundle causing right bundle branch block (RBBB)7 but complete heart block (CHB) can also result. After trauma, impairment of the right bundle is usually transient with recovery in hours, but complete heart block can lead to symptoms requiring invasive treatment. Similar complications with insertion of central venous catheters, like IJV cannulation, are rare as they do not enter the heart. Injury to the conduction system during central venous catheter insertion can be by trauma from the guide wire or from the catheter itself7. We report a patient with TAPVC who developed CHB during IJV cannulation by high approach.