Protocol summary

Study aim
Comparison of the efficacy, complications, and clinical outcomes of two techniques, LigaSure and cold dissection, in tonsillectomy surgery.
Design
The present study is a phase 3, single-blind, controlled clinical trial with two parallel groups . Thirty eligible individuals will be randomly assigned to each group using random blocks
Settings and conduct
Sixty eligible patients referred to the clinic of Baqiyatallah Hospital, will be randomly divided into two groups: cold dissection and LigaSure. Intervention group: Tonsillectomy surgery is performed using LigaSure. Control group: Tonsillectomy is performed using cold dissection. patients do not know which group they have been assigned to, but they were informed about both methods beforehand and entered the study with full consent. Since they are under anesthesia, they are unaware of how their surgery was performed. Additionally, the treatment outcome assessor and the data analyst will be blinded to the study hypothesis.
Participants/Inclusion and exclusion criteria
Inclusion criteria: Patients older than 3 years and younger than 16 years who are candidates for tonsillectomy surgery; have provided consent for the procedure; undergoing tonsillectomy for the first time. Exclusion criteria: Patients who have a history of incomplete tonsil surgery, have coagulation disorders, or withdraw from continued cooperation during the study.
Intervention groups
Tonsillectomy surgery is performed using LigaSure. Control group: Tonsillectomy is performed using cold dissection. In this method, the tonsil and its capsule are separated from the surrounding tissues using a dissector, detached from the lower pole, and the tonsil is removed.
Main outcome variables
Pain intensity at the surgical site (pharynx) based on the Visual Analogue Scale (VAS)

General information

Reason for update
Acronym
IRCT registration information
IRCT registration number: IRCT20260530069575N1
Registration date: 2026-06-02, 1405/03/12
Registration timing: prospective

Last update: 2026-06-02, 1405/03/12
Update count: 0
Registration date
2026-06-02, 1405/03/12
Registrant information
Name
Ismail Alhabash
Name of organization / entity
Country
Iran (Islamic Republic of)
Phone
+98 21 4405 8754
Email address
alhabash-ismail@bmsu.ac.ir
Recruitment status
Not yet recruiting
Funding source
Expected recruitment start date
2026-07-23, 1405/05/01
Expected recruitment end date
2027-05-22, 1406/03/01
Actual recruitment start date
empty
Actual recruitment end date
empty
Trial completion date
empty
Scientific title
Comparison of Tonsillectomy Outcomes Using LigaSure Device-Assisted Technique Versus Conventional Method
Public title
Comparison of Tonsillectomy Outcomes Using LigaSure Device-Assisted Technique Versus Conventional Method
Purpose
Treatment
Inclusion/Exclusion criteria
Inclusion criteria:
Patients older than 3 years and younger than 16 years who candidates for tonsillectomy surgery have provided consent for the procedure Patients that undergoing tonsillectomy for the first time.
Exclusion criteria:
Patients who have a history of incomplete tonsil surgery have coagulation disorders withdraw from continued cooperation during the study
Age
From 3 years old to 16 years old
Gender
Both
Phase
3
Groups that have been masked
  • Participant
  • Outcome assessor
  • Data analyser
Sample size
Target sample size: 60
Randomization (investigator's opinion)
Randomized
Randomization description
Random allocation will be performed using the random blocking method (four-block blocks). The possible blocks are as follows: 1- AABB, 2- ABAB, 3- BABA, 4- BBAA, 5- BAAB, 6- ABBA. At this stage, numbers (1 to 6) will be randomly selected using a random number table, and this process will be repeated 15 times until the sample size is reached
Blinding (investigator's opinion)
Single blinded
Blinding description
Patients do not know which group they have been assigned to, but they were informed about both methods beforehand and entered the study with full consent. Since they are under anesthesia, they are unaware of how their surgery was performed. Additionally, the outcome assessor and the data analyst are blinded to the study hypothesis.
Placebo
Not used
Assignment
Parallel
Other design features

Secondary Ids

empty

Ethics committees

1

Ethics committee
Name of ethics committee
Ethics Commmittee of Baqiyatallah Hospital
Street address
Baqiyatallah university, south sheikh bahai st, molasdra st, vanak sq
City
Tehran
Province
Tehran
Postal code
1435916471
Approval date
2026-03-18, 1404/12/27
Ethics committee reference number
IR.BMSU.BAQ.REC.1404.157

Health conditions studied

1

Description of health condition studied
Tonsillectomy
ICD-10 code
J35.1
ICD-10 code description
Hypertrophy of tonsils

Primary outcomes

1

Description
Pain intensity at the surgical site (pharynx) based on the Visual Analogue Scale (VAS)
Timepoint
24 hours, 3 and 7 days after surgery
Method of measurement
Visual Analogue Scale (VAS)

2

Description
Bleeding during operation
Timepoint
During surgery
Method of measurement
The volume of blood loss is calculated by counting the bloody gauzes (each saturated gauze = 15 mL) and collecting the blood in a graduated suction during the procedure, and is recorded in milliliters.

Secondary outcomes

1

Description
operation Time
Timepoint
The time from the start of surgery (the first contact of the instrument with the tissue) until the completion of incision and bleeding control is recorded with a chronometer and reported in seconds or minutes.
Method of measurement
During operation

2

Description
Infection
Timepoint
24 hours, 3 and 7 days after surgery
Method of measurement
Occurrence of an inflammatory response or local or systemic infection in the surgical area, characterized by symptoms such as fever, purulent discharge, foul odor, or redness

3

Description
Secondary Bleeding
Timepoint
24 hours, 3 and 7 days after surgery
Method of measurement
Observation of obvious bleeding from the mouth or nose (spitting blood, hematemesis)

4

Description
Posterior pillar injury
Timepoint
7 days after surgery
Method of measurement
Direct visual inspection: After removing the tonsil, the surgeon carefully examines the tonsillar fossa and both the anterior and posterior pillars using a retractor or speculum

Intervention groups

1

Description
Intervention group: onsillectomy surgery is performed using LigaSure. LigaSure is a new electrosurgical hemostatic device consisting of an electrosurgical generator, a handpiece with a forceps‑like scissor mechanism, along with a manual or foot switch.
Category
Treatment - Surgery

2

Description
Control group: Tonsillectomy is performed using cold dissection. In this method, the tonsil and its capsule are separated from the surrounding tissues using a dissector, detached from the lower pole, and the tonsil is removed. Hemostasis is achieved using 3/0 Vicryl suture.
Category
Treatment - Surgery

Recruitment centers

1

Recruitment center
Name of recruitment center
Baqiyatallah Hospital
Full name of responsible person
Ismail Al-Habash
Street address
Baqiyatallah university, south sheikh bahai st, molasdra st, vanak sq
City
Tehran
Province
Tehran
Postal code
1435916471
Phone
+98 21 8855 5125
Email
alhabash-ismail@bmsu.ac.ir

Sponsors / Funding sources

1

Sponsor
Name of organization / entity
Bagheiat-allah University of Medical Sciences
Full name of responsible person
Abbas Ali Imani Fooladi
Street address
baqiatala university south sheikh baha st, molasadra, st , vanak sq.
City
Tehran
Province
Tehran
Postal code
1435916471
Phone
+98 21 8855 5125
Email
imanifouladi@gmail.com
Grant name
Grant code / Reference number
Is the source of funding the same sponsor organization/entity?
Yes
Title of funding source
Bagheiat-allah 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
Bagheiat-allah University of Medical Sciences
Full name of responsible person
Ismail Al- Habash
Position
ENT Resident
Latest degree
Medical doctor
Other areas of specialty/work
Ear, Nose, and Throat
Street address
baqiatala university south sheikh baha st, molasadra, st , vanak sq.
City
Tehran
Province
Tehran
Postal code
1435916471
Phone
+98 21 8755 5511
Email
alhabash-ismail@bmsu.ac.ir

Person responsible for scientific inquiries

Contact
Name of organization / entity
Bagheiat-allah University of Medical Sciences
Full name of responsible person
Jaleh Yusefi
Position
Otolaryngologist
Latest degree
Specialist
Other areas of specialty/work
Ear, Nose, and Throat
Street address
Nosrati Alley, Sheykh Bahaei st, Mollasadra st., Vanaq sq., Tehran, Iran
City
Tehran
Province
Tehran
Postal code
1435916471
Phone
+98 21 8862 0826
Email
yousefi.jaleh@gmail.com

Person responsible for updating data

Contact
Name of organization / entity
Bagheiat-allah University of Medical Sciences
Full name of responsible person
Ismail Al - Habash
Position
ENT Resident
Latest degree
Medical doctor
Other areas of specialty/work
Ear, Nose, and Throat
Street address
baqiatala university south sheikh baha st, molasadra, st , vanak sq.
City
Tehran
Province
Tehran
Postal code
1435916471
Phone
+98 21 8855 5125
Email
alhabash-ismail@bmsu.ac.ir

Sharing plan

Deidentified Individual Participant Data Set (IPD)
No - There is not a plan to make this available
Justification/reason for indecision/not sharing IPD
Due to patient confidentiality and privacy considerations, we have not received permission from the ethics committee to share individual patient data
Study Protocol
No - There is not a plan to make this available
Statistical Analysis Plan
No - There is not a plan to make this available
Informed Consent Form
No - There is not a plan to make this available
Clinical Study Report
No - There is not a plan to make this available
Analytic Code
No - There is not a plan to make this available
Data Dictionary
No - There is not a plan to make this available
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