Related Experiment Video
Updated: Jul 20, 2026
Laparoscopic S7 Hepatectomy with Positive Fluorescence Staining
Published on: May 9, 2025
Veress needle insertion in the left hypochondrium in creation of the pneumoperitoneum
Otávio Cansanção de Azevedo1, João Luiz Moreira Coutinho Azevedo, Albino Augusto Sorbello
1Service of Surgical Gastroenterology, Public Servant Hospital of the State of São Paulo, Federal University of São Paulo (UNIFESP), Rua Botucato 740, 04023 São Paulo (SP), Brazil.
Purpose:
To test the efficacy of the puncture in the left hypochondrium as an alternative method.
Methods:
Sixty-two patients randomly distributed into two groups were studied: Group LH, puncture in the left hypochondrium (n=30), and Group ML, puncture in the abdominal midline (n=32). The following were assessed: needle positioning tests, number of failed attempts at needle insertion, and time needed for creation of pneumoperitoneum. Gas flow, volume and intraperitoneal pressure were recorded at every 20 seconds, until a 12 mmHg pressure was reached inside the peritoneal cavity.
Results:
A similar number of positive results for the needle positioning tests were observed in both groups. Two failed attempts to reach the peritoneal cavity were observed in Group ML and one in Group LH. The time necessary for the creation of pneumoperitoneum was on average 3 minutes and 46 seconds for Group LH, and 4 minutes and 2 seconds for Group ML. Average gas flow, volume and pressure were equivalent for both groups.
Conclusion:
Puncture in the left hypochondrium was as effective as puncture in the abdominal midline for the creation of pneumoperitoneum.
More Related Videos
Related Concept Videos
01:26Endoscopic Studies II: Thoracocentesis
Description
Excess pleural fluid or air may accumulate in some respiratory disorders in the thoracic cavity. To treat pleural effusion, a physician conducts thoracentesis by carefully piercing the chest wall and entering...
01:27Pneumothorax-II
Clinical Manifestations:
01:27Parentral Nutrition: Centeral and Peripheral Parental Nutrition
PN can be administered through two primary routes:
1. Central Parenteral Nutrition (CPN):
CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...