The working intra-abdominal pressure used in gynecological laparoscopy:
**Core Concept**
The working intra-abdominal pressure (IAP) used in gynecological laparoscopy is a critical parameter that must be carefully controlled to prevent complications such as gas embolism, bowel injury, and venous congestion. The ideal working IAP should allow adequate visualization of the pelvic organs while minimizing the risk of complications.
**Why the Correct Answer is Right**
The correct working IAP in gynecological laparoscopy is typically between 12-15 mmHg. This range is sufficient to allow good visualization of the pelvic organs, particularly the uterus and ovaries, without causing excessive venous congestion or increasing the risk of gas embolism. The pressure is usually maintained at this level throughout the procedure to prevent complications.
**Why Each Wrong Option is Incorrect**
**Option A:** 10 mmHg is too low, as it may not provide adequate visualization of the pelvic organs, particularly in patients with a large uterus or those with pelvic adhesions.
**Option B:** 18 mmHg is too high, as it may cause excessive venous congestion, leading to complications such as gas embolism, bowel injury, or subcutaneous emphysema.
**Option C:** 20 mmHg is excessively high and may cause severe venous congestion, leading to complications such as respiratory distress, cardiac arrhythmias, or even cardiac arrest.
**Clinical Pearl / High-Yield Fact**
It is essential to use a pressure gauge to monitor the working IAP during laparoscopy, as the pressure can fluctuate during the procedure. A sudden increase in pressure may indicate a complication, such as gas embolism or bowel injury.
**Correct Answer:** C. 15 mmHg