Abstract
The ideal age for bidirectional Glenn shunt (BDGS) as the first stage of staged Fontan is still not clear. Because of the concerns regarding relatively high pulmonary vascular resistance during infancy, many centres would bridge through a systemic to pulmonary artery shunt in this age group.
Patients and Methods
We did a retrospective analysis of 28 infants who had undergone bidirectional Glenn shunt at our institute from February 200.
Results
The mean age was 5 months (2.5–11) and the mean weight was 6.5 Kg (3.4–8.7). Boys dominated the group (25∶3). 7 infants had previous procedures. In 3 patients, BDGS was done as a salvage procedure. Formal Cardiopulmonary bypass (CPB) was used in all but 4 patients, in whom a right heart bypass was used. Superior Vena Cava (SVC) or innominate vein was cannulated in 12 patients and the rest were managed with temporary occlusion of SVC under deep hypothermic low flow bypass. 9 infants had bilateral BDGS. The main pulmonary artery was interrupted in 12 and atrial septectomy was done in 10 patients. Additional procedures with BDGS included Patent Ductus Arterious (PDA) interruption, Blalock Taussig (BT) shunt interruption, Left pulmonary arterioplasty, Stansel procedure and redo TAPVC repair. The mean SVC pressure post operatively was 14 (10–24) and only 2 patients needed pulmonary vasodilators in the post-oprative period. There is only one mortality in this series and the duration of chest tube drainage and Intensive Care Unit (ICU) stay is comparable with the older age group.
Conclusion
BDGS can be performed safely in infants more than 2 months of age electively or as a salvage procedure. It helps to avoid one step in the form of aortopulmonary shunt and hence the ventricular volume overload associated with it. Further studies are required to establish the growth potential of pulmonary arteries following an early BDGS.
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Warrier, G., Dharan, B.S., Koshy, S. et al. Bidirectional glenn operation in infancy. Indian J Thorac Cardiovasc Surg 20, 159–163 (2004). https://doi.org/10.1007/s12055-004-0075-y
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DOI: https://doi.org/10.1007/s12055-004-0075-y