RT Book, Section A1 Ellison, E. Christopher A1 Zollinger, Jr., Robert M. A1 Pawlik, Timothy M. A1 Vaccaro, Patrick S. A1 Bitans, Marita A1 Baker, Anthony S. SR Print(0) ID 1187820491 T1 Hasson Open Technique for Laparoscopic Access T2 Zollinger’s Atlas of Surgical Operations, 11e YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781260440850 LK accesssurgery.mhmedical.com/content.aspx?aid=1187820491 RD 2024/03/29 AB The first step in most abdominal laparoscopic procedures is insufflation of the intraperitoneal space with carbon dioxide (CO2) gas and introduction of the videoscope system. The original and most established technique uses the Veress needle, described in Chapter 14. The Veress needle can be placed in any quadrant of the abdomen but is most frequently inserted just below the umbilicus, where a skin incision has been made for the introduction of a large 10-mm port for the videoscope. General surgeons, however, have been cautious in adopting this technique of blind puncture because their training has emphasized the importance of complete visualization of the anatomy and of the planned action of their surgical instruments. Accordingly, the open, or Hasson, technique for entering the abdomen under direct vision has become more popular and safer.