Different Lipid Soluble Opioids for Gynecologic Laparoscopic Surgery Postoperative Patient-controlled Analgesia

Different Lipid Soluble Opioids for Gynecologic Laparoscopic Surgery Postoperative Patient-controlled Analgesia --- a Double Blind Randomized Study

The investigators noticed that Body Fat Ratio might have great influence on the efficacy of different lipid soluble anesthetics. The objective of this clinical trial was to compare the effect of that Body Fat Ratio on the efficacy of different lipid soluble anesthetics.

The objective of this clinical trial was to compare the effect of that Body Fat Ratio on the efficacy of different lipid soluble anesthetics.

Inclusion Criteria:

• American Society of Anesthesiologists grade I-II
• adults aged over 20 and below 50 years old,
• non-smoker,
• with normal hepatic and renal function.

Exclusion Criteria:

• smoker ,
• any kind of mental disorder or
• history use of analgesics for more than 10 consecutive days,
• asthma; and
• those with digestion tract disorder who would get nausea or vomiting much more easily than normal people.