eISSN: 1897-4295
ISSN: 1734-9338
Advances in Interventional Cardiology/Postępy w Kardiologii Interwencyjnej
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vol. 12
Short communication

A case of percutaneous modified Blalock-Taussig shunt downsize with multiple stent-in-graft technique

Roland Fiszer, Malgorzata Szkutnik, Natalia Iashchuk, Jacek Bialkowski

Adv Interv Cardiol 2016; 12, 2 (44): 164–165
Online publish date: 2016/05/11
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Pulmonary overcirculation is a common complication related to an inadequate size of a systemic to pulmonary shunt. It leads to pulmonary oedema, subsequent reduced pulmonary compliance and desaturation. There are several surgical solutions for excessively large shunts, but according to our best knowledge no interventional technique for the reduction of a systemic to pulmonary shunt size has been reported so far.
We present a complex case of percutaneous downsizing of a modified Blalock-Taussig shunt with a multiple stent-in-graft technique in a patient with single ventricle anatomy treated with staged repair.

Case report

The case concerns a 16-year-old female patient with single ventricle, pulmonary atresia and malposed great arteries after the Hemi-Fontan procedure and aortic valve homograft implantation between the right atrium and right pulmonary artery. The homograft was closed interventionally, while the left lung was separated and supplied by a Blalock Taussig shunt at the age of 7 years [1]. Nine years later, this shunt became occluded and the left lung was supplied by collaterals only. The shunt was replaced by an 8 mm Gore-Tex tube graft. After an initial increase in the oxygen saturation from 60% to mid 70%, she developed massive left sided pleural effusions with haemodynamic compromise. It was clear that the left sided shunt was too large. So far the only therapeutic option for patients with pulmonary overcirculation due to an inadequate shunt size has been surgery. However, a seventh surgical intervention was much too risky and undesirable for the patient. The decision was made to place several bare stents into the shunt in order to reduce the internal graft lumen. The procedure was performed under general anaesthesia. An initial angiography confirmed a large 8 mm left shunt (Figure 1). The shunt was crossed with the JR catheter and Terumo glide wire from the right femoral artery. Then the Cook extra-stiff wire and over it the Mullins long 7 Fr sheath were advanced into the left pulmonary artery. Four Genesis XD stents (Johnson & Johnson, NJ, USA; two 10 mm × 25 mm and two 10 mm × 29 mm) mounted on Opta Pro balloons (Cordis, NJ, USA) were implanted into the Gore-Tex tube one over another. Control angiography confirmed the proper position of the devices (Figure 2). The day after the procedure oxygen saturation rose from 45% to 60% (with no additional oxygen supply) and transthoracic echocardiogram...

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