The half-turned truncal switch operation adds a new spin for patients with complex coronary anatomy and transposition of the great arteries

Abstract

The half-turned truncal switch operation (HTTSO) was first reported by Yamagishi and colleagues 1 in 2003 as an alternative to the Rastelli and Lecompte operations for patients with complete transposition of the great arteries (TGA) not amenable to standard arterial switch operations (Figure 1). As mentioned by Yamagishi and colleagues 1 in their initial publication, the HTTSO was initially contraindicated for patients with TGA in combination with a complex anomalous coronary artery. Despite initial concerns, however, indications for the HTTSO have broadened to include patients with aberrant coronary artery anatomy. 2