Protocol summary

Study aim
Comparison of the effect of adding dexmedetomidine with dexamethasone to bupivacaine in transverse abdominal plane block on pain intensity, hemodynamic parameters and other outcomes after laparoscopic cholecystectomy surgery.
Design
Clinical trial with a control group, with parallel groups, double-blind, randomized, phase 2 on 111 patients. Excel software was used for Blocked Randomization.
Settings and conduct
It will be carried out in the Imam Khomeini Educational-Therapeutic Hospital of Sari in Mazandaran province. In this study, the patient and the final evaluator will not know about the allocation method (double-blind).
Participants/Inclusion and exclusion criteria
Physical status of ASA class I and II, age between 18-65 years and exclusion conditions: patient refusal to participate. Neuromuscular diseases (for example, myopathy, myasthenia gravis). Hematological diseases, bleeding or coagulation disorders. Local skin infection and Sepsis at the site of the block. Known hypersensitivity to the study drugs. Morbid obesity (BMI > 35), sleep apnea or any other sleep disorder, history of alcoholism or drug addiction, any uncompensated systemic disease, other mental or emotional problems.
Intervention groups
Control group = patients will receive 17 ml of 0.25% bupivacaine + 3 ml of 0.9% saline in a total volume of 20 ml per side Dexamethasone group: patients will receive 17 mL of 0.25% bupivacaine + dexamethasone (4 mg) diluted in 3 mL of 0.9% saline in a total volume of 20 mL per side. Dexmedetomidine group = patients will receive 17 ml bupivacaine 0.25% + dexmedetomidine (1 µg/kg) diluted in 3 ml saline 0.9% in a total volume of 20 ml on each side.
Main outcome variables
Pain intensity, nausea, sedation

General information

Reason for update
Acronym
IRCT registration information
IRCT registration number: IRCT20161126031095N4
Registration date: 2023-06-24, 1402/04/03
Registration timing: prospective

Last update: 2023-06-24, 1402/04/03
Update count: 0
Registration date
2023-06-24, 1402/04/03
Registrant information
Name
Alieh Zamani Kiasari
Name of organization / entity
Mazandaran University of Medical Science
Country
Iran (Islamic Republic of)
Phone
+98 11 3335 5080
Email address
azamani@mazums.ac.ir
Recruitment status
Recruitment complete
Funding source
Expected recruitment start date
2023-06-26, 1402/04/05
Expected recruitment end date
2023-08-21, 1402/05/30
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
Comparison of the effect of adding dexmedetomidine with dexamethasone to bupivacaine in abdominal transverse block on pain intensity after laparoscopic cholecystectomy
Public title
Comparison of the effect of adding dexmedetomidine with dexamethasone to bupivacaine in abdominal transverse block on pain intensity after laparoscopic cholecystectomy
Purpose
Supportive
Inclusion/Exclusion criteria
Inclusion criteria:
ASA class I and II physical condition Age between 18-65 years
Exclusion criteria:
Patient refusal to participate Neuromuscular diseases (eg myopathy, myasthenia gravis) Hematological diseases, bleeding or coagulation disorders Local skin infection and sepsis at the block site Known hypersensitivity to study drugs Morbid obesity (BMI > -35.7 History of alcoholism or drug addiction Any uncompensated systemic disease (cardiovascular, respiratory, metabolic, neurological and endocrine) Other mental or emotional problems that may invalidate informed consent. Patients will be screened by a preoperative care nurse. Potentially eligible individuals will be directed to investigators for screening and additional information. Sleep apnea or any other sleep disorder
Age
From 18 years old to 65 years old
Gender
Both
Phase
2
Groups that have been masked
  • Participant
  • Care provider
  • Investigator
  • Outcome assessor
  • Data analyser
  • Data and Safety Monitoring Board
Sample size
Target sample size: 100
Randomization (investigator's opinion)
Randomized
Randomization description
The method of random allocation is the method of random blocks. In this study, the randomization method will be used to generate a random sequence using the block method and the Random allocation software. First, the informed consent form is registered by the patient in writing, and then the participants will be randomly assigned to each group.
Blinding (investigator's opinion)
Double blinded
Blinding description
SNOSE method will be used to hide random allocation. This method is one of the common methods in hiding random allocation. In this method, first a random sequence is created using the mentioned software, then based on the sample size of a number of envelopes with aluminum wrappers (in order to make the content of the envelopes unclear), prepare and each of the random sequences created on It is recorded on a card and the cards are placed in the envelopes in order. In order to maintain the random sequence, the outer surface of the envelopes is numbered in the same order. Finally, the lids of the envelopes are glued and placed in a box. At the time of starting the registration of participants, based on the order of entry of eligible participants into the study, one of the envelopes will be opened and the allocated group of that participant will be revealed. اطلاعات بیشتر درباره این نوشتار مبدأ برای اطلاعات ترجمه بیشتر، نوشتار مبدأ لازم است ارسال بازخورد پانل‌های کناری
Placebo
Not used
Assignment
Parallel
Other design features

Secondary Ids

empty

Ethics committees

1

Ethics committee
Name of ethics committee
Ethics Committee of Imam Khomeini Hospital of Sari - Mazandaran University of Medical Sciences
Street address
Office Building Ethics Committee of Imam Khomeini Hospital Amir Mazandarani Blvd.
City
Sari
Province
Mazandaran
Postal code
48166-33131
Approval date
2023-02-01, 1401/11/12
Ethics committee reference number
IR.MAZUMS.IMAMHOSPITAL.REC.1402.012

Health conditions studied

1

Description of health condition studied
Other acute postprocedural pain
ICD-10 code
G89.18
ICD-10 code description
Other acute postprocedural pain

Primary outcomes

1

Description
Severity of patients' pain
Timepoint
zero, 2, 4, 6, 12 and 24 hours after the operation
Method of measurement
Visual Analogue Scale

2

Description
Sedation score
Timepoint
zero hours 2, 4, 6, 12 and 24 after the operation
Method of measurement
Reverse Observer Assessment Scale of Consciousness/Sedation (OAA/S)

Secondary outcomes

empty

Intervention groups

1

Description
Control group: Patients received 17 ml of 0.25% bupivacaine + 3 ml of 0.9% saline in a total volume of 20 ml on each side.
Category
Treatment - Drugs

2

Description
Intervention group: Patients received 17 ml of 0.25% bupivacaine + dexamethasone (4 mg) diluted in 3 ml of 0.9% saline in a total volume of 20 ml on each side.
Category
Treatment - Drugs

3

Description
Intervention group: Patients received 17 ml of 0.25% bupivacaine + dexmedetomidine (1 µg/kg) diluted in 3 ml of 0.9% saline in a total volume of 20 ml on each side.
Category
Treatment - Drugs

Recruitment centers

1

Recruitment center
Name of recruitment center
Imam Khomeini Hospital, Sari
Full name of responsible person
Alieh Zamani Kiasari
Street address
Imam Khomeini Hospital, Amir Mazandarani Boulevard, Sari
City
Sari
Province
Mazandaran
Postal code
48166-33131
Phone
+98 11 3336 1700
Fax
+98 11 3336 1630
Email
aliehzamani@yahoo.com
Web page address
https://www.mazums.ac.ir/

Sponsors / Funding sources

1

Sponsor
Name of organization / entity
Mazandaran University of Medical Sciences
Full name of responsible person
Majid Saedi
Street address
Moalem Ave
City
Sari
Province
Mazandaran
Postal code
48157-33971
Phone
+98 11 3325 7230
Fax
+98 11 3325 7230
Email
m.saedi@mazums.ac.ir
Web page address
https://www.mazums.ac.ir
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Mazandaran University of Medical Sciences
Proportion provided by this source
100
Public or private sector
Public
Domestic or foreign origin
Domestic
Category of foreign source of funding
empty
Country of origin
Type of organization providing the funding
Academic

Person responsible for general inquiries

Contact
Name of organization / entity
Mazandaran University of Medical Sciences
Full name of responsible person
Alieh Zamani Kiasari
Position
Associate Professor of Anesthesiology and Vegetative Care
Latest degree
Specialist
Other areas of specialty/work
Anesthesiology
Street address
Clinical Research Development Center, Imam Khomeini Hospital, Amir Mazandarani Boulevard
City
Sari
Province
Mazandaran
Postal code
48166-33131
Phone
+98 11 3335 5080
Fax
+98 11 3335 5080
Email
aliehzamani@yahoo.com
Web page address
https://www.mazums.ac.ir

Person responsible for scientific inquiries

Contact
Name of organization / entity
Mazandaran University of Medical Sciences
Full name of responsible person
Alieh Zamani Kiasari
Position
Associate Professor of Anesthesiology and Vegetative Care
Latest degree
Specialist
Other areas of specialty/work
Anesthesiology
Street address
Clinical Research Development Center, Imam Khomeini Hospital, Amir Mazandarani Boulevard
City
Sari
Province
Mazandaran
Postal code
48166-33131
Phone
+98 11 3335 5080
Fax
+98 11 3335 5080
Email
aliehzamani@yahoo.com
Web page address
https://www.mazums.ac.ir

Person responsible for updating data

Contact
Name of organization / entity
Mazandaran University of Medical Sciences
Full name of responsible person
Alieh Zamani Kiasari
Position
Associate Professor of Anesthesiology and Vegetative Care
Latest degree
Specialist
Other areas of specialty/work
Anesthesiology
Street address
Clinical Research Development Center, Imam Khomeini Hospital, Amir Mazandarani Boulevard
City
Sari
Province
Mazandaran
Postal code
48166-33131
Phone
+98 11 3335 5080
Fax
+98 911 151 7833
Email
aliehzamani@yahoo.com
Web page address
https://www.mazums.ac.ir

Sharing plan

Deidentified Individual Participant Data Set (IPD)
Undecided - It is not yet known if there will be a plan to make this available
Study Protocol
Undecided - It is not yet known if there will be a plan to make this available
Statistical Analysis Plan
Undecided - It is not yet known if there will be a plan to make this available
Informed Consent Form
Undecided - It is not yet known if there will be a plan to make this available
Clinical Study Report
Undecided - It is not yet known if there will be a plan to make this available
Analytic Code
Undecided - It is not yet known if there will be a plan to make this available
Data Dictionary
Undecided - It is not yet known if there will be a plan to make this available
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