Fig. 1From: Cardiorespiratory impact of intrathoracic pressure overshoot during artificial carbon dioxide pneumothorax: a randomized controlled studyThoracoscopic procedures of thoracoscopic-laparoscopic esophagectomy. a Patients were placed in the semi-prone position and four trocars were placed at four sites. b-d Intraoperative images during artificial pneumothoraxBack to article page