Laparoscopic Colorectal SurgeryNCT03433014
Local Wound Infiltration With 0.5% Levobupivacaine for Postoperative Pain After Laparoscopic Colorectal Surgery.
A study testing 0.5% Levobupivacaine in people with Laparoscopic Colorectal Surgery and Colorectal Cancer, run by Mahidol University at 1 site in Thailand.
Trial summary
The study design is a prospective randomized, double-blind, controlled trial of patients who are due to have elective laparoscopic colorectal surgery in Ramathibodhi Hospital. The primary objective is to measure pain scores (Visual Analog Scale) in the postoperative period. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Laparoscopic Colorectal Surgery, Colorectal Cancer
- What is being tested?
- 0.5% Levobupivacaine
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 30 participants
- Where
- 1 siteThailand
- Study dates
- 31 Mar 2018to 30 Dec 2020
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients scheduled for elective laparoscopic colorectal surgery under general anesthesia.
- ASA (American Society of Anesthesiologists) classification 1 and 2
- Laparoscopic colorectal surgery including Laparoscopic segmental colonic resection, laparoscopic anterior resection and laparoscopic low anterior resection
Who cannot join
- Conversion to open surgery.
- Patients receive epidural anesthesia.
- Patients have history allergy to aminoamides.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: A Prospective Randomized Controlled Trial of Postoperative Analgesic Effects of Local Wound Infiltration With 0.5% Levobupivacaine in Laparoscopic Colorectal Surgery.
The study design is a prospective randomized, double-blind, controlled trial of patients who are due to have elective laparoscopic colorectal surgery in Ramathibodhi Hospital. The primary objective is to measure pain scores (Visual Analog Scale) in the postoperative period. The secondary objective is to compare the VAS scores between the two types of technique used for specimen retrieval incision.After approval by the ethics committee, patients scheduled for elective laparoscopic colorectal surgery under general anesthesia who are eligible for inclusion criteria were recruited for this study after informed consent by surgical residents or surgical staff at the Outpatient Department (OPD). Patients who meet the exclusion criteria will be excluded.
Read the detailed description
During a preoperative visit, the patients are introduced to the concept of the visual analogue scale (VAS), which ranges from 0 = no pain to 10 = worst pain.
Once given general anesthesia in the operating room, the patient will be randomly selected into one of the two arms of this report's diagram (1:1 ratio) through the drawing of a sealed, opaque envelope by one of the surgical residents in charge or by the attending surgeon. The infiltration group will receive local infiltration with 0.5% Levobupivacaine. The trocar insertion sites are infiltrated before the skin incision is made. Using the Lap-Assist Transversus Abdominis Plane Block Technique, the total volume of infiltrated 0.5% Levobupivacaine is 20 ml, divided proportionally according to the length of the skin incision (2 ml for the 5-mm trocar and 3 ml for the 10-mm trocars, and 10 mL for specimen retrieval incision). The control group will not receive any local infiltrative agent.After induction, the pneumoperitoneum will be created via the Open Hasson Technique and using a 10-12-mm trocar. During surgery, intraabdominal pressure is maintained at 12-15 mmHg. In addition to the Hasson trocar, one 10-mm and two to three 5-mm trocars will be used. The specimen retrieval incision will be performed in one of two techniques, depending on the surgeon's preference, a 4-6 cm length midline incision (extending from the Hasson trocar incision) or a 4-6 cm length Pfanensteil incision.
A standardized plan for postoperative analgesia is prepared. All patients will receive one 500 mg tablet of oral paracetamol every 6 hours when postoperative oral intake is allowed by the attending doctor. In patients with VAS scores >3, parenteral opioid (Morphine) is given.
The hospital volunteer nurses caring for the patients during the preoperative and postoperative course are given standard pain evaluation protocols. All study pain evaluators and patients are blinded to treatment assignments throughout the pain assessment process.
After the operation, the inpatient ward nurse will record the patients' pain score at 4 hours after surgery using the VAS score and record the results in the study data recording form attached to each patient's medical record chart. Additional morphine usage data is also recorded.
All side effects, such as tinnitus, nausea, vomiting, headache, dizziness, seizure, cardiovascular instability, and local wound complication will be recorded and treated by the attending resident or consultant doctor.
All data is collected by the main investigator from the patient chart and data recording form. Data is expressed as mean ± SD. Parametric data is compared between groups. Statistical significance is set at a level of p< 0.05.
- Conditions
- Laparoscopic Colorectal Surgery, Colorectal Cancer
- Being tested
- 0.5% Levobupivacaine, Control
- Medical subject headings
- Colorectal Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
0.5% LevobupivacaineProcedure or surgery
The infiltration group will receive local infiltration with 0.5% Levobupivacaine. The trocar insertion sites are infiltrated before the skin incision is made. Using the Lap-Assist Transversus Abdominis Plane Block Technique, the total volume of infiltrated 0.5% Levobupivacaine is 20 ml, divided proportionally according to the length of the skin incision (2 ml for the 5-mm trocar and 3 ml for the 10-mm trocars, and 10 mL for specimen retrieval incision). The specimen retrieval incision will be performed in one of two techniques, depending on the surgeon's preference, a 4-6 cm length midline incision (extending from the Hasson trocar incision) or a 4-6 cm length Pfanensteil incision.
ControlOther
No infiltration
| Study group | Role | What they receive |
|---|---|---|
| 0.5% Levobupivacaine | Active comparator | The trocar insertion sites are infiltrated before the skin incision is made. Using the Lap-Assist Transversus Abdominis Plane Block Technique, the total volume of infiltrated 0.5% Levobupivacaine is 20 ml, divided proportionally according to the length of the skin incision. Receives: Procedure: 0.5% Levobupivacaine |
| Control | Other | The control group will not receive any local infiltrative agent. Receives: Other: Control |
What is being measured
The primary outcome is the main question the study is designed to answer.
measure pain scores (Visual Analog Scale) in the postoperative period
After the operation, the inpatient ward nurse will record the patients' pain score at 4 hours after surgery using the VAS score and record the results in the study data recording form attached to each patient's medical record chart.standardized plan for postoperative analgesia is prepared. All patients will receive one 500 mg tablet of oral paracetamol every 6 hours when postoperative oral intake is allowed by the attending doctor. In patients with VAS scores >3, parenteral opioid (Morphine) is given.
Measured: 4 hours after surgery using the VAS score
Secondary outcomes (1)
objective is to compare the VAS scores between the two types of technique used for specimen retrieval incision
The secondary objective is to compare the VAS scores between the two types of technique used for specimen retrieval incision.. The specimen retrieval incision will be performed in one of two techniques, depending on the surgeon's preference, a 4-6 cm length midline incision (extending from the Hasson trocar incision) or a 4-6 cm length Pfanensteil incision.
Measured: 4 hours after surgery using the VAS score
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Feb 2018
- Study start31 Mar 2018
- Primary completion1 Aug 2020
- Study completion30 Dec 2020
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Laparoscopic Colorectal SurgeryStudies of the same condition, open and under way.
- More trials run by Mahidol UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- The infiltration group will receive local infiltration with 0.5% Levobupivacaine. The trocar insertion sites are infiltrated before the skin incision is made. Using the Lap-Assist Transversus Abdominis Plane Block Technique, the total volume of infiltrated 0.5% Levobupivacaine is 20 ml, divided proportionally according to the length of the skin incision (2 ml for the 5-mm trocar and 3 ml for the 10-mm trocars, and 10 mL for specimen retrieval incision). The control group will not receive any local infiltrative agent.
- Masking
- Single blind
- Who is masked
- Investigator
- Enrolment
- 30 participants (actual)
Sponsor and investigators
- Lead sponsor
- Mahidol University
- Sponsor type
- University, hospital or other
- Collaborators
- Ramathibodi Hospital
- Responsible party
- Sponsor
- Investigators
- Chairat Supsamutchai, MD, Study chair, Ramathibodi Hospital, Mahidol UniversityChumpon Wilasrusmee, MD, Principal investigator, Ramathibodi Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03433014
- Sponsor's protocol ID
- 2016/200
- Status last verified
- Sep 2021
- First submitted
- 31 Jan 2018
- Last updated
- 2 Sep 2021
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 2 Sep 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Prospective Randomized Controlled Trial of Postoperative Analgesic Effects of Local Wound Infiltration With 0.5% Levobupivacaine in Laparoscopic Colorectal Surgery.
- ClinicalTrials.gov ID
- NCT03433014
- Acronym / sponsor ID
- 2016/200
- Conditions
- Laparoscopic Colorectal Surgery, Colorectal Cancer
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 30 participants (actual)
- Lead sponsor
- Mahidol UniversityUniversity, hospital or other
- Collaborators
- Ramathibodi Hospital
- Study start
- 31 Mar 2018 (actual)
- Primary completion
- 1 Aug 2020 (actual)
- Study completion
- 30 Dec 2020 (actual)
- First posted
- 14 Feb 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The study design is a prospective randomized, double-blind, controlled trial of patients who are due to have elective laparoscopic colorectal surgery in Ramathibodhi Hospital. The primary objective is to measure pain scores (Visual Analog Scale) in the postoperative period. The secondary objective is to compare the VAS scores between the two types of technique used for specimen retrieval incision.After approval by the ethics committee, patients scheduled for elective laparoscopic colorectal surgery under general anesthesia who are eligible for inclusion criteria were recruited for this study after informed consent by surgical residents or surgical staff at the Outpatient Department (OPD). Patients who meet the exclusion criteria will be excluded.
Detailed description
During a preoperative visit, the patients are introduced to the concept of the visual analogue scale (VAS), which ranges from 0 = no pain to 10 = worst pain.
Once given general anesthesia in the operating room, the patient will be randomly selected into one of the two arms of this report's diagram (1:1 ratio) through the drawing of a sealed, opaque envelope by one of the surgical residents in charge or by the attending surgeon. The infiltration group will receive local infiltration with 0.5% Levobupivacaine. The trocar insertion sites are infiltrated before the skin incision is made. Using the Lap-Assist Transversus Abdominis Plane Block Technique, the total volume of infiltrated 0.5% Levobupivacaine is 20 ml, divided proportionally according to the length of the skin incision (2 ml for the 5-mm trocar and 3 ml for the 10-mm trocars, and 10 mL for specimen retrieval incision). The control group will not receive any local infiltrative agent.After induction, the pneumoperitoneum will be created via the Open Hasson Technique and using a 10-12-mm trocar. During surgery, intraabdominal pressure is maintained at 12-15 mmHg. In addition to the Hasson trocar, one 10-mm and two to three 5-mm trocars will be used. The specimen retrieval incision will be performed in one of two techniques, depending on the surgeon's preference, a 4-6 cm length midline incision (extending from the Hasson trocar incision) or a 4-6 cm length Pfanensteil incision.
A standardized plan for postoperative analgesia is prepared. All patients will receive one 500 mg tablet of oral paracetamol every 6 hours when postoperative oral intake is allowed by the attending doctor. In patients with VAS scores >3, parenteral opioid (Morphine) is given.
The hospital volunteer nurses caring for the patients during the preoperative and postoperative course are given standard pain evaluation protocols. All study pain evaluators and patients are blinded to treatment assignments throughout the pain assessment process.
After the operation, the inpatient ward nurse will record the patients' pain score at 4 hours after surgery using the VAS score and record the results in the study data recording form attached to each patient's medical record chart. Additional morphine usage data is also recorded.
All side effects, such as tinnitus, nausea, vomiting, headache, dizziness, seizure, cardiovascular instability, and local wound complication will be recorded and treated by the attending resident or consultant doctor.
All data is collected by the main investigator from the patient chart and data recording form. Data is expressed as mean ± SD. Parametric data is compared between groups. Statistical significance is set at a level of p< 0.05.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (investigator)
- Number of arms
- 2
- Model description
- The infiltration group will receive local infiltration with 0.5% Levobupivacaine. The trocar insertion sites are infiltrated before the skin incision is made. Using the Lap-Assist Transversus Abdominis Plane Block Technique, the total volume of infiltrated 0.5% Levobupivacaine is 20 ml, divided proportionally according to the length of the skin incision (2 ml for the 5-mm trocar and 3 ml for the 10-mm trocars, and 10 mL for specimen retrieval incision). The control group will not receive any local infiltrative agent.
| Arm | Type | Receives |
|---|---|---|
| 0.5% Levobupivacaine | Active comparator | Procedure: 0.5% LevobupivacaineThe trocar insertion sites are infiltrated before the skin incision is made. Using the Lap-Assist Transversus Abdominis Plane Block Technique, the total volume of infiltrated 0.5% Levobupivacaine is 20 ml, divided proportionally according to the length of the skin incision. |
| Control | Other | Other: ControlThe control group will not receive any local infiltrative agent. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Patients scheduled for elective laparoscopic colorectal surgery under general anesthesia.
- ASA (American Society of Anesthesiologists) classification 1 and 2
- Laparoscopic colorectal surgery including Laparoscopic segmental colonic resection, laparoscopic anterior resection and laparoscopic low anterior resection
Key exclusion criteria (3 listed)
- Conversion to open surgery.
- Patients receive epidural anesthesia.
- Patients have history allergy to aminoamides.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| 0.5% LevobupivacaineThe infiltration group will receive local infiltration with 0.5% Levobupivacaine. The trocar insertion sites are infiltrated before the skin incision is made. Using the Lap-Assist Transversus Abdominis Plane Block Technique, the total volume of infiltrated 0.5% Levobupivacaine is 20 ml, divided proportionally according to the length of the skin incision (2 ml for the 5-mm trocar and 3 ml for the 10-mm trocars, and 10 mL for specimen retrieval incision). The specimen retrieval incision will be performed in one of two techniques, depending on the surgeon's preference, a 4-6 cm length midline incision (extending from the Hasson trocar incision) or a 4-6 cm length Pfanensteil incision. | Procedure or surgery | 0.5% Levobupivacaine |
| ControlNo infiltration | Other | Control |
Primary outcome
measure pain scores (Visual Analog Scale) in the postoperative period
Time frame: 4 hours after surgery using the VAS score
After the operation, the inpatient ward nurse will record the patients' pain score at 4 hours after surgery using the VAS score and record the results in the study data recording form attached to each patient's medical record chart.standardized plan for postoperative analgesia is prepared. All patients will receive one 500 mg tablet of oral paracetamol every 6 hours when postoperative oral intake is allowed by the attending doctor. In patients with VAS scores >3, parenteral opioid (Morphine) is given.
1 secondary outcome
objective is to compare the VAS scores between the two types of technique used for specimen retrieval incision
Time frame: 4 hours after surgery using the VAS score
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Sep 2021.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Chairat Supsamutchai, MD study chair
Ramathibodi Hospital, Mahidol University
Chumpon Wilasrusmee, MD principal investigator
Ramathibodi Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing 0.5% Levobupivacaine in people with Laparoscopic Colorectal Surgery and Colorectal Cancer, run by Mahidol University at 1 site in Thailand.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 2 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Thailand. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
measure pain scores (Visual Analog Scale) in the postoperative period (time frame: 4 hours after surgery using the VAS score). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Sep 2021.