Try the modernized beta website. Learn more about the modernization effort.
Working… Menu

Bowel Function After Minimally Invasive Hysterectomy

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT04263896
Recruitment Status : Recruiting
First Posted : February 11, 2020
Last Update Posted : October 22, 2021
Information provided by (Responsible Party):
University of Chicago

Brief Summary:

Postoperative constipation affects up to a third of women undergoing minimally invasive (MIS) gynecologic surgery and is a major source of anxiety and discomfort. The average time to first bowel movement after gynecologic surgery is about 2 to 4 days and some factors responsible for this include anesthesia inhibitory effect on gastrointestinal motility, opioid pain medication use, chronic NSAID use and anatomic manipulation.

There are no established regimens to manage postoperative constipation after minimally invasive gynecologic surgery. Two studies evaluating the implementation of postoperative bowel regimen with polyethylene glycol (PEG) and with Senna and Docusate found no significant impact on postoperative bowel function. There have been no studies looking at the effect of preoperative bowel regimens on postoperative bowel function.

The purpose of this study is to evaluate postoperative bowel function after minimally invasive hysterectomy in women receiving a preoperative 10-day bowel regimen of PEG daily.

Condition or disease Intervention/treatment Phase
Constipation Drug: Polyethylene Glycol 3350 Phase 4

Detailed Description:

Following enrollment subjects will be randomized into the intervention/treatment arm and control arm. All subjects will be asked to complete a baseline demographic form and three questionnaires (PAC-SYM, PAC- QOL, Wexner Constipation score). Additional demographic information will be obtained from chart review. This information will include past medical history, use of constipating medications, use of daily pain medications, chronic pain history, use of daily fiber supplementation.

Subjects in the intervention arm will be given 10-day supply of Miralax and instructed on its use. They will take this medication for the 10 days prior to surgery. Subjects in the control arm will continue with standard care prior to surgery.

Post operatively, all subjects will complete a diary for 7 days. In this diary they will record details about their bowel movements (time of movement, discomfort, texture of stool). They will also report average daily pain levels ( with a visual analog scale), daily pain medication use (time, medication, total number of pills).

At the end of the 7th day all subjects will complete the same PAC questionnaires as they did pre-operatively.

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 101 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description: Following enrollment subjects will be randomized into the intervention/treatment arm and control arm through a randomizing process in the investigator's database.
Masking: None (Open Label)
Primary Purpose: Prevention
Official Title: Bowel Function After Minimally Invasive Hysterectomy: A Randomized Controlled Trial
Actual Study Start Date : August 28, 2019
Estimated Primary Completion Date : June 30, 2022
Estimated Study Completion Date : June 30, 2023

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Participants receiving pre-operative laxative
Participants will receive 10 doses, 17g each, of polyethylene glycol 3350. They will be instructed to take 1 dose/packet each day for 10 days leading up to their surgery.
Drug: Polyethylene Glycol 3350
Participants will take 1 17g pack per day for 10 days preceding surgery.
Other Name: Miralax

No Intervention: Participants not receiving pre-operative laxative
Participants will not be given any laxatives.

Primary Outcome Measures :
  1. Patient Assessment of Constipation Symptoms questionnaire (PAC-SYM) Score [ Time Frame: From 10 days pre-operation to 7 days post-operation ]
    Constipation will be evaluated both preoperatively and postoperatively using a validated questionnaires (PAC-SYM/PAC-QOL). Patient assessment of constipation symptoms (PAC-SYM) - The Patient Assessment of Constipation-Symptoms (PAC-SYM) questionnaire, developed through psychometric evaluation of adults with chronic constipation, is a tool for assessing the severity of patient-reported symptoms of this disorder. The 12-item questionnaire is divided into three symptom subscales: abdominal (four items); rectal (three items); and stool (five items). Items are scored on 5-point Likert scales, with scores ranging from 0 to 4 (0 = 'symptom absent', 1 = 'mild', 2 = 'moderate', 3 = 'severe' and 4 = 'very severe'). A mean total score in the range of 0-4 is generated by dividing the total score by the number of questions completed; the lower the total score, the lower the symptom burden.

  2. Patient Assessment of Constipation Quality of Life questionnaire (PAC-QOL) Score [ Time Frame: From 10 days pre-operation to 7 days post-operation ]
    Patient assessment of constipation quality of life (PAC-QOL) - PAC-Qol is a self-reported questionnaire, was used to measure the quality of life of patients.9 The validated PAC-QoL is composed of 28 items grouped into four subscales: physical discomfort, psychosocial discomfort, worries and concerns, and satisfaction. The first three subscales are used to assess the patient dissatisfaction index, with an overall score ranging from 0 to 96 (where lower scores correspond to better quality of life). The satisfaction subscale includes four items with a global score ranging from 0 to 16, so that each patient's self-reported definitive outcome is defined as either poor (0-4), fairly good (5-8), good (9-12), or excellent (13-16).

Secondary Outcome Measures :
  1. Visual Analog Scale for Pain Management [ Time Frame: Day of surgery to 7 days after surgery ]
    Visual analog scale - The visual analog scale (VAS) is a measure of subjective pain intensity. It is a continuous scale comprised of a horizontal visual analog scale that is 100 mm in length. The subject will place a mark on the scale to indicate the intensity of her pain. 0 mm would be no pain, 100 mm would be the greatest imaginable pain. Any mark in between will be measured in mm to indicate degree of pain the subject is experiencing.

  2. Pain medication consumption tracking by participant [ Time Frame: Day of surgery to 7 days after surgery ]
    Type of pain medication consumption will be collected for up to 7 days post-surgery.

  3. Pain medication consumption tracking by participant [ Time Frame: Day of surgery to 7 days after surgery ]
    Dosages of pain medication consumption will be collected for up to 7 days post-surgery.

  4. Wexner/ Constipation Scoring System/1996 Cleveland clinic score (CCS)/ Agachan Score [ Time Frame: Prior to surgery ]
    Wexner a commonly used scoring system, is designed to assess the prevalence and severity of constipation. It is based on pathophysiological definition of constipation. The scoring system is based on eight variables (frequency of bowel movements; difficult or painful evacuation; completeness of evacuation; abdominal pain; time per attempt; type of assistance including laxatives; digitations or enemas; number of unsuccessful attempts at evacuation in a 24-h period and duration of constipation). The CSS consists of seven items that are scored using a five-point Likert scale that ranges from 0 (none of the time) to 4 (all of the time) and one item that is rated on a 0-2 scale. A total score can range from 0 (normal) to 30 (severe constipation). A cutoff score of 15 suggests constipation.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Any woman ≥ 18 years of age undergoing a minimally invasive hysterectomy (Laparoscopic, robotic, vaginal)
  • Able to understand the consenting process and willing to participate in study

Exclusion Criteria:

  • Planned laparotomy
  • Emergent surgery
  • Regular preoperative use of PEG 3350, laxatives, enemas or suppositories
  • Planned bowel surgery
  • Presence of colostomy
  • Inability to consent
  • Medical problems as follows:
  • CKD (Cr: > 1.2 mg/dL)
  • IDDM
  • Cardiac disease
  • Gastric ulcers
  • Difficulty swallowing or esophageal stricture
  • Persistent nausea or vomiting
  • Signs or symptoms of a small bowel obstruction

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT04263896

Layout table for location contacts
Contact: Research Specialist 2 773-834-0171
Contact: Dianne Glass, MD, PhD 773-702-6118

Layout table for location information
United States, Illinois
University of Chicago Medicine Recruiting
Chicago, Illinois, United States, 60637
Contact: Dianne Glass, MD, PhD    773-702-6118   
Principal Investigator: Dianne Glass, MD, PhD         
Sponsors and Collaborators
University of Chicago
Layout table for investigator information
Principal Investigator: Diane Glass, MD, PhD University of Chicago
Publications of Results:

Other Publications:
Layout table for additonal information
Responsible Party: University of Chicago Identifier: NCT04263896    
Other Study ID Numbers: IRB19-0436
First Posted: February 11, 2020    Key Record Dates
Last Update Posted: October 22, 2021
Last Verified: October 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Product Manufactured in and Exported from the U.S.: Yes
Additional relevant MeSH terms:
Layout table for MeSH terms
Signs and Symptoms, Digestive
Polyethylene glycol 3350
Gastrointestinal Agents