TY - JOUR
T1 - Pre-clinical evaluation of the new veress needle + mechanism on thiel-embalmed bodies
T2 - a controlled crossover study - Experimental research
AU - Postema, Roelf R.
AU - Hardon, Sem
AU - Cefai, David
AU - Dankelman, Jenny
AU - Jansen, Frank-Willem
AU - Camenzuli, Christian
AU - Calleja-Agius, Jean
AU - Horeman-Franse, Tim
N1 - Funding Information: The authors would like to thank all the participants for taking time to fill out the questionnaires and to conduct the experiments. The authors thank the staff of the Department of Anatomy, Faculty of Medicine and Surgery in Malta for preparation of the bodies and support during the experiments. Van Straten Medical and VSH Surgical engineering are thanked for the support during manufacturing of the needles. Publisher Copyright: © 2023 The Author(s). Published by Wolters Kluwer Health, Inc. This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
PY - 2023/5/1
Y1 - 2023/5/1
N2 - Background: Veress needles (VN) are commonly used in establishing pneumoperitoneum in laparoscopic surgery. Previously, a VN with a new safety mechanism 'VeressPLUS' needle (VN +) was developed to reduce the amount of overshoot. Methods: Eighteen participants (novices, intermediates, and experts) performed in total of 248 insertions in a systematic way on Thiel-embalmed bodies with wide and small bore versions of the conventional VN (VNc) and the VN +. Insertion depth was measured by recording the graduations on the needle under direct laparoscopic vision. Results: Participants graded the bodies and the procedures as lifelike. Overall, a significant reduction (P < 0.001) in average insertion depth was found for the VN + compared to the VNc of 26.0 SD16 mm versus 46.2 SD15 mm. The insertion depth difference in the novice group was higher compared to the intermediates and experts (P < 0.001). The average insertion depth for both needle types was less (P < 0.001) for female participants compared to male. Conclusion: This study indicated that the VN + significantly reduced the insertion depth in all tested conditions. Whether the difference between female and male performance can be linked to differences in muscle control or arm mass should be further investigated. Useful technical information was gathered from this study to further improve the VN +.
AB - Background: Veress needles (VN) are commonly used in establishing pneumoperitoneum in laparoscopic surgery. Previously, a VN with a new safety mechanism 'VeressPLUS' needle (VN +) was developed to reduce the amount of overshoot. Methods: Eighteen participants (novices, intermediates, and experts) performed in total of 248 insertions in a systematic way on Thiel-embalmed bodies with wide and small bore versions of the conventional VN (VNc) and the VN +. Insertion depth was measured by recording the graduations on the needle under direct laparoscopic vision. Results: Participants graded the bodies and the procedures as lifelike. Overall, a significant reduction (P < 0.001) in average insertion depth was found for the VN + compared to the VNc of 26.0 SD16 mm versus 46.2 SD15 mm. The insertion depth difference in the novice group was higher compared to the intermediates and experts (P < 0.001). The average insertion depth for both needle types was less (P < 0.001) for female participants compared to male. Conclusion: This study indicated that the VN + significantly reduced the insertion depth in all tested conditions. Whether the difference between female and male performance can be linked to differences in muscle control or arm mass should be further investigated. Useful technical information was gathered from this study to further improve the VN +.
KW - entry technique
KW - laparoscopy
KW - safety mechanism
KW - veress needle
UR - http://www.scopus.com/inward/record.url?scp=85161648020&partnerID=8YFLogxK
U2 - https://doi.org/10.1097/MS9.0000000000000640
DO - https://doi.org/10.1097/MS9.0000000000000640
M3 - Article
C2 - 37229054
SN - 2049-0801
VL - 85
SP - 1371
EP - 1378
JO - Annals of Medicine and Surgery
JF - Annals of Medicine and Surgery
IS - 5
ER -