★ Must-know
Laparoscopy is a minimally invasive approach that has been associated with expanded surgical indications and fewer medical contraindications.
Laparoscopic access is established by inserting a Veress needle through a subumbilical incision and insufflating the peritoneal cavity with carbon dioxide.
Carbon dioxide insufflation raises intra-abdominal pressure and increases blood carbon dioxide.
Further detail
Veress needle → CO₂ insufflation → raised intra-abdominal pressure and blood CO₂.
1. How is laparoscopic access to the peritoneal cavity established?
2. Which broad change has been associated with the minimally invasive laparoscopic approach?
3. What immediate physiological changes result from carbon dioxide insufflation during laparoscopy?
What surgical approach is laparoscopy?
A minimally invasive approach.
How is laparoscopic access initially established?
A Veress needle is inserted through a subumbilical incision.
What gas insufflates the peritoneal cavity during laparoscopic access?
Carbon dioxide.
What does carbon dioxide insufflation raise inside the abdomen?
Intra-abdominal pressure.
What does carbon dioxide insufflation increase in the blood?
Carbon dioxide.
What cardiovascular effects can pneumoperitoneum cause?
It decreases venous return and cardiac output, increases systemic vascular resistance, and can cause lower-limb venous stasis.
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