• Philip Lerut, Frederiek Nuytens, and Mathieu D'Hondt.
• Department of Thoracic and Vascular Surgery, AZ Groeninge, Kortrijk, Belgium.
• Ann. Surg. Oncol. 2016 Dec 1; 23 (Suppl 5): 885.

BackgroundThe management of patients with simultaneously diagnosed colorectal liver and lung metastases (SLLM) remains controversial. A recent study based on an analysis of the LiverMetSurvey demonstrated that patients with SLLM suitable for resection of all metastases have a survival similar to that of patients who undergo removal of isolated liver metastases.1 Simultaneous transdiaphragmatic resection of peripheral lung lesions and liver resection by laparotomy has been described previously.2 To the authors' knowledge, no previous reports on a similar minimally invasive approach have been published. In April 2015, the authors started performing combined minimally invasive transdiaphragmatic resections of peripheral colorectal lung metastases in patients undergoing laparoscopic liver resections. This video aims to demonstrate the authors' first experience with this minimally invasive approach.MethodsThis report describes a combined minimally invasive transdiaphragmatic resection of peripheral colorectal lung metastasis in a patient undergoing a laparoscopic liver resection. General anesthesia was induced with placement of a double-lumen endotracheal tube to achieve single-lung ventilation. Once laparoscopic liver resection was completed, the left lung containing the metastatic lesion was deflated. The left hemidiaphragm was carefully divided using a 10-cm incision around the central tendon to avoid damage to the phrenic nerve. The lung metastasis was localized using intraoperative ultrasound, and the lesion was resected using endoscopic 60-mm vascular staplers. A thoracic tube was placed, and the diaphragm was closed with a running nonabsorbable suture.ResultsThe operative time was 180 min, and the blood loss was 100 ml. The postoperative course was uneventful. The patient was discharged on postoperative day 4. Pathology confirmed two colorectal metastases. Tumor-free margins of 5 mm for the liver and 7 mm for the lung were achieved.ConclusionsSimultaneous transdiaphragmatic resection of peripheral lung lesions is feasible for patients undergoing laparoscopic liver resection. The low invasiveness of the described technique could facilitate an aggressive operative approach to SLLM.

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