Effect of Disconnecting Pulmonary Vagus Nerve Branch on Chronic Cough After Unilateral Thoracoscopic Lobectomy

When the operation is in the right side, the Azygous vein bow is used as the marker, and in the left side, the aortic arch is used as the marker to identify the vagus nerve trunk.Then the surgeons dissect the vagus nerve trunk. This is used as a clue to find the vagus nerve pulmonary branch leading to the hilum. The position of the detachment is after the anterior and posterior pulmonary branches of the vagus nerve separating from the trunk and before the formation of the lung plexus.