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The original approach to performing a modified Blalock-Taussig (MBT) shunt is via a left thoracotomy. However, the median sternotomy has become the preferred approach of many surgeons. We think that the upper ministernotomy approach provides several advantages and avoids the disadvantages of both the sternotomy and thoracotomy approaches. Here, we describe our experience in constructing neonatal MBT shunts via upper ministernotomy. A prospective study was conducted on 50 neonates who underwent modified Blalock-Taussig shunt performed through upper ministernotomy between March 2011 and December 2016. Preoperative characteristics, mortality, and morbidity were recorded. Mean age was 16.9 ± 10.4 days, and weight was 3.5 ± 0.5 kg. All patients received grafts of size 3.5 mm. The mean oxygen saturation increased from 59.5 ± 7.3% preoperatively to 84.8 ± 4.2% postoperatively. There were three cases of mortality (6%). One patient suffered from an unstable sternum (2%). No patients required conversion to full sternotomy. Superficial wound infection occurred in three cases (6%), and there were no cases of mediastinitis. Mean duration of ventilation was 55.64 ± 37.5 h, mean ICU stay was 5.44 ± 3.9 days, and mean hospital stay was 14.7 ± 7.2 days. Upper ministernotomy is a safe approach with good early results. It provides adequate exposure with limited surgical trauma. Emergency conversion to full sternotomy and initiation of cardiopulmonary bypass can be achieved easily. It avoids lung compression and respiratory compromise. Additional costs for specific instruments are not necessary.

Ministernotomy approach for modified Blalock-Taussig shunts in neonates: a feasibility study