The Effect of Postoperative Modified Trendelenburg Position to Decrease Shoulder Pain After Laparoscopic Hysterectomy: A Randomized Controlled Trial

Inclusion Criteria: * Female patient age between 30-65 years * American Society of Anesthesiologist (ASA) physical status I or II * Scheduled for operative laparoscopic hysterectomy with abdominal incisions measuring less than 1 cm in size * Can speak and understand Thai language Exclusion Criteria: * Pregnant women * Conversion procedure to open abdominal surgery * Patients with postoperative abdominal drainage * Surgery duration more than 3 hours * Gynecologic malignancy surgery * Patients with history of chronic shoulder pain * Patients with history of previous shoulder surgery * Inability to accurately express pain * Patients with history of Gastroesophageal reflux disease or chronic gastritis * Patients with history of cardiovascular or pulmonary disease * Patients with history of venous thrombosis * Morbid obesity BMI \> 40 kg/m2 * Patients with history of increase intracranial pressure * Patients with history of increase intraocular pressure * Patients with liver and/or kidney disease * NSAIDs and/or Paracetamol and/or Morphine allergy * Current corticosteroid use * Patients who use current analgesic drugs and don't want to quit while stay in the hospital * Psychiatric disorder * Intellectual disorder * Postoperative length in hospital less than 24 hours