Effects of persistent CO(2) insufflation during different laparoscopic inguinal hernioplasty: a prospective,...

Area of Science:

• Minimally Invasive Surgery
• Surgical Anesthesiology
• Laparoscopic Surgery

Background:

• Laparoscopic inguinal hernia repair offers advantages over open surgery.
• Carbon dioxide (CO2) insufflation is standard in laparoscopic procedures.
• Understanding CO2 effects on patient physiology is crucial for safety.

Purpose of the Study:

• To investigate the physiological effects of CO2 insufflation during laparoscopic inguinal hernioplasty.
• To compare the safety and outcomes of transabdominal preperitoneal (TAPP) and extraperitoneal (TEP) hernia repair techniques.

Main Methods:

• Forty patients undergoing laparoscopic inguinal hernia repair were randomized to TAPP (n=20) or TEP (n=20).
• Hemodynamic (heart rate, blood pressure) and respiratory (end-tidal CO2, blood gases) parameters were monitored.
• Key physiological variables were compared between the TAPP and TEP groups.

Main Results:

• Both TAPP and TEP groups showed significant increases in blood pressure, end-tidal CO2, PaCO2, and HCO3-, with decreases in heart rate and pH during surgery.
• These physiological changes were transient and normalized by the end of the procedure.
• No significant differences in outcomes or physiological responses were observed between the TAPP and TEP groups.

Conclusions:

• Laparoscopic inguinal hernia repair, via TAPP or TEP, transiently alters hemodynamic and respiratory function due to CO2 insufflation.
• Observed effects like CO2 accumulation and acidosis are manageable with appropriate perioperative care.
• Both TAPP and TEP are demonstrated as safe laparoscopic techniques for inguinal hernia repair when managed properly.