Abstract
The availability of new techniques may affect surgeons' procedure selection and thereby affect clinical outcomes. This study aimed to evaluate the effect of the availability of virtual-assisted lung mapping (VAL-MAP) on the selection of lung resection methods. Members of the Japanese Association for Chest Surgeons were invited to participate in a web-based survey. Participants were divided into those who had never used VAL-MAP (group 0), those who had used only VAL-MAP 1.0 (multiple dye marks on the pleural surface; group 1) and those who had used VAL-MAP 2.0 (multiple dye marks and intrabronchial microcoils for three-dimensional mapping; group 2). Participants were shown chest computed tomography images of 6 ground-glass opacity nodules and asked to choose surgical procedures to resect the nodules with sufficient resection margins greater than the lesion diameter or 2 cm. There were 197 surgeons in group 0, 49 in group 1 and 26 in group 2. All groups showed a similar trend of avoiding wedge resection for deeply located nodules. However, group 1 showed a trend of disagreeing with the selection of wedge resection compared with group 0 as measured by a Likert scale (1-5) by -0.21 points (95% confidence interval, -0.41 to -0.008 points, P = 0.042). This tendency disappeared in group 2. The availability of VAL-MAP 1.0 led to the selection of segmentectomy, while the availability of VAL-MAP 2.0 led to aggressive deep wedge resection.
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