Different Maneuvers for Reducing Post-laparoscopic Pain

July 15, 2022 updated by: Shereen Elsayed Abd Ellatif, Zagazig University

Different Maneuvers for Reducing Post-laparoscopic Shoulder and Abdominal Pain: A Randomized Controlled Trial

  • Laparoscopic surgeries are becoming more attractive because of early recovery. However, post-laparoscopic shoulder and upper abdominal pain may cause more discomfort to the patient than the pain at the incision site
  • Many strategies have been attempted, such as the use of nonsteroidal anti-inflammatory drugs; however, the effect is limited, and there are no reliable methods available yet.
  • Recently, some techniques are introduced that can potentially alleviate various types of pain through different mechanisms in patients after laparoscopic surgery such as low-pressure pneumoperitoneum, intraperitoneal normal saline infusion, and pulmonary recruitment maneuvers.
  • the investigators conduct this randomized controlled trial to evaluate the effectiveness of different strategies on reducing the intensity of post-laparoscopic shoulder and abdominal pain in patients undergoing laparoscopic gynecologic surgeries.

Study Overview

Detailed Description

Laparoscopic surgery is becoming more popular due to smaller incision, faster recovery, less postoperative pain, and earlier returns to normal activity . However post-laparoscopic shoulder and upper abdominal pain may upset the patient more than the pain at the incision site. The incidence of shoulder pain after laparoscopic gynecological surgery varies from 35% to 80% and could be so severe at 24 hours after laparoscopic hysterectomy as well.

The mechanism of post laparoscopic shoulder and abdominal pain attributes to the insufflated co2 in the abdominal cavity and become entrapped between the liver and the right diaphragm causing irritation of the phrenic nerve, diaphragm and referred pain in the C4 dermatome. On the other hand, the prolonged exposure to residual CO2 dissolution leads to intra-abdominal acidosis and consequent peritoneal irritation and abdominal pain.

As long as the retention of CO2 is the key factor in the laparoscopy-induced shoulder and abdominal pain, many strategies have been evolved to alleviate different types of pain in patients undergoing laparoscopic surgeries such as usage of low-pressure pneumoperitoneum (8-10 mmHg) that result in reducing the intensity of postoperative pain in comparison to standard high-pressure pneumoperitoneum (12-15 mmHg). Although this low pressure may impair visualization and jeopardize the surgeon's comfort during surgery, this method is proven to be safe and feasible.

One of the maneuvers that have been proposed is an intraperitoneal normal saline infusion (IPS) that increases intraperitoneal pressure to enhance the removal of residual CO2, as well as offers a physiologic buffer system to wash out excess CO2.

Pulmonary recruitment maneuvers (PRM) has also a potential beneficial effect on alleviating post-laparoscopic pain by mechanically increasing intraperitoneal pressure to accelerate the elimination of residual CO2.

Because these variable techniques are mediated through different mechanisms, the investigators hypothesize that combination of two different maneuvers may be ideal and more effective in reducing post-laparoscopic shoulder and abdominal pain than any single or standard maneuver in patients undergoing laparoscopic gynecologic surgeries.

Study Type

Interventional

Enrollment (Actual)

108

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Elsharqya
      • Zagazig, Elsharqya, Egypt, 44519
        • Faculty of medicine, Zagazig university

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

21 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Patient acceptance.
  • BMI ≤35 kg/m2.
  • ASA I and ASA II.
  • Scheduled for elective laparoscopic gynecologic surgeries for benign lesions under general anesthesia.

Exclusion Criteria:

  • Patients with pre-existing chronic pain disorders.
  • Patients on opioid or sedative use.
  • Psychological and mental disorders.
  • Severe hypertensive, cardiac, hepatic and renal patients.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Group C
high intra-abdominal pressure
laparoscopy will be performed with 14-16 mmHg intra-abdominal pressure. At the end of the procedure routine method for CO2 removal, passive exsufflation, will be used by applying gentle abdominal pressure to evacuate the residual gas through the port site.
Active Comparator: Group L
low intra-abdominal pressure
laparoscopy will be performed with 8-10 mmHg intra-abdominal pressure and routine passive exsufflation will be applied for CO2 removal at the end of the procedure.
Active Comparator: Group LR
low intra-abdominal pressure with pulmonary recruitment maneuver group
the intra-abdominal pressure will be kept at 8-10 mmHg during laparoscopy. At the end of the procedure pulmonary recruitment maneuver (PRM) will be done; which consists of five manual pulmonary inflations at a maximum pressure of 40 cm H2O and the fifth will be held for 5 seconds. During this procedure, the surgeon is instructed to keep the port sleeve valve fully opened to allow the CO2 to escape the abdominal cavity.
Active Comparator: Group LS
low intra-abdominal pressure with intraperitoneal saline infusion group
the intra-abdominal pressure will be kept at 8-10 mmHg during laparoscopy. At the end of the procedure, intraperitoneal normal saline (IPS) will be infused for removal of the intra-abdominal CO2; in which we fill the upper part of the abdominal cavity evenly and bilaterally with isotonic normal saline (15-20 mL/kg body weight)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
changes in assessment of shoulder, abdominal and incisional pain
Time Frame: at 1, 2, 4, 6, 12, 24, 48,72,96 hours postoperatively
will be assessed by visual analogue scale (VAS) scale, On a scale of 0-10, the patient will learn to quantify postoperative pain where 0= No pain and 10= Maximum worst pain.
at 1, 2, 4, 6, 12, 24, 48,72,96 hours postoperatively

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Time of first request of analgesia
Time Frame: within 24 hour postoperative
time elapsed from patient arrival to post anesthesia care unit to time of first patient call for analgesia
within 24 hour postoperative
Total rescue analgesic requirement
Time Frame: during the first postoperative 96 hours
if VAS ≥3 or on patient request, rescue analgesia will be given
during the first postoperative 96 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 13, 2020

Primary Completion (Actual)

February 1, 2022

Study Completion (Actual)

March 1, 2022

Study Registration Dates

First Submitted

July 13, 2020

First Submitted That Met QC Criteria

July 16, 2020

First Posted (Actual)

July 17, 2020

Study Record Updates

Last Update Posted (Actual)

July 20, 2022

Last Update Submitted That Met QC Criteria

July 15, 2022

Last Verified

July 1, 2022

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

planned after the completion of the study and publication

IPD Sharing Time Frame

planned after the completion of the study and publication

IPD Sharing Access Criteria

principal investigator

IPD Sharing Supporting Information Type

  • Study Protocol
  • Statistical Analysis Plan (SAP)
  • Informed Consent Form (ICF)
  • Analytic Code

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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