Ignite Creation Date:
2025-12-25 @ 3:56 AM
Ignite Modification Date:
2025-12-26 @ 2:48 AM
Study NCT ID:
NCT00636402
Status:
UNKNOWN
Last Update Posted:
2008-12-11
First Post:
2008-03-07
Is NOT Gene Therapy:
False
Has Adverse Events:
False
Brief Title:
Study of Efficacy and Adverse Effects: Vessel Sealing System Tonsillectomy Versus Cold Knife Tonsillectomy
Sponsor:
Organization:
Raw JSON
{'hasResults': False, 'derivedSection': {'miscInfoModule': {'versionHolder': '2025-12-24'}, 'conditionBrowseModule': {'meshes': [{'id': 'D014069', 'term': 'Tonsillitis'}, {'id': 'D020181', 'term': 'Sleep Apnea, Obstructive'}, {'id': 'D010146', 'term': 'Pain'}], 'ancestors': [{'id': 'D010612', 'term': 'Pharyngitis'}, {'id': 'D012141', 'term': 'Respiratory Tract Infections'}, {'id': 'D007239', 'term': 'Infections'}, {'id': 'D010608', 'term': 'Pharyngeal Diseases'}, {'id': 'D009057', 'term': 'Stomatognathic Diseases'}, {'id': 'D012140', 'term': 'Respiratory Tract Diseases'}, {'id': 'D010038', 'term': 'Otorhinolaryngologic Diseases'}, {'id': 'D012891', 'term': 'Sleep Apnea Syndromes'}, {'id': 'D001049', 'term': 'Apnea'}, {'id': 'D012120', 'term': 'Respiration Disorders'}, {'id': 'D020919', 'term': 'Sleep Disorders, Intrinsic'}, {'id': 'D020920', 'term': 'Dyssomnias'}, {'id': 'D012893', 'term': 'Sleep Wake Disorders'}, {'id': 'D009422', 'term': 'Nervous System Diseases'}, {'id': 'D009461', 'term': 'Neurologic Manifestations'}, {'id': 'D012816', 'term': 'Signs and Symptoms'}, {'id': 'D013568', 'term': 'Pathological Conditions, Signs and Symptoms'}]}}, 'protocolSection': {'designModule': {'phases': ['NA'], 'studyType': 'INTERVENTIONAL', 'designInfo': {'allocation': 'RANDOMIZED', 'maskingInfo': {'masking': 'SINGLE', 'whoMasked': ['PARTICIPANT']}, 'primaryPurpose': 'TREATMENT', 'interventionModel': 'PARALLEL'}, 'enrollmentInfo': {'type': 'ACTUAL', 'count': 20}}, 'statusModule': {'overallStatus': 'UNKNOWN', 'lastKnownStatus': 'ENROLLING_BY_INVITATION', 'startDateStruct': {'date': '2008-03'}, 'expandedAccessInfo': {'hasExpandedAccess': False}, 'statusVerifiedDate': '2008-12', 'completionDateStruct': {'date': '2008-12', 'type': 'ESTIMATED'}, 'lastUpdateSubmitDate': '2008-12-10', 'studyFirstSubmitDate': '2008-03-07', 'studyFirstSubmitQcDate': '2008-03-07', 'lastUpdatePostDateStruct': {'date': '2008-12-11', 'type': 'ESTIMATED'}, 'studyFirstPostDateStruct': {'date': '2008-03-14', 'type': 'ESTIMATED'}, 'primaryCompletionDateStruct': {'date': '2008-12', 'type': 'ESTIMATED'}}, 'outcomesModule': {'primaryOutcomes': [{'measure': 'Intra-operative time', 'timeFrame': '1 day'}, {'measure': 'Intra-operative blood loss', 'timeFrame': '1 day'}, {'measure': 'Pain, postoperative', 'timeFrame': '14 days'}], 'secondaryOutcomes': [{'measure': 'Postoperative bleeding and other adverse effects', 'timeFrame': '14 days'}]}, 'oversightModule': {'oversightHasDmc': True}, 'conditionsModule': {'keywords': ['Vessel Sealing System', 'Cold Knife', 'Tonsillectomy', 'Pain', 'Postoperative'], 'conditions': ['Tonsillitis', 'Obstructive Sleep Apnea']}, 'referencesModule': {'references': [{'pmid': '17765762', 'type': 'RESULT', 'citation': 'Lachanas VA, Hajiioannou JK, Karatzias GT, Filios D, Koutsias S, Mourgelas C. Comparison of LigaSure vessel sealing system, harmonic scalpel, and cold knife tonsillectomy. Otolaryngol Head Neck Surg. 2007 Sep;137(3):385-9. doi: 10.1016/j.otohns.2007.05.012.'}, {'pmid': '16148700', 'type': 'RESULT', 'citation': 'Lachanas VA, Prokopakis EP, Bourolias CA, Karatzanis AD, Malandrakis SG, Helidonis ES, Velegrakis GA. Ligasure versus cold knife tonsillectomy. Laryngoscope. 2005 Sep;115(9):1591-4. doi: 10.1097/01.mlg.0000172044.57285.b6.'}, {'pmid': '15961165', 'type': 'RESULT', 'citation': 'Prokopakis EP, Lachanas VA, Benakis AA, Helidonis ES, Velegrakis GA. Tonsillectomy using the Ligasure vessel sealing system. A preliminary report. Int J Pediatr Otorhinolaryngol. 2005 Sep;69(9):1183-6. doi: 10.1016/j.ijporl.2005.03.042.'}, {'pmid': '16785404', 'type': 'RESULT', 'citation': 'Lister MT, Cunningham MJ, Benjamin B, Williams M, Tirrell A, Schaumberg DA, Hartnick CJ. Microdebrider tonsillotomy vs electrosurgical tonsillectomy: a randomized, double-blind, paired control study of postoperative pain. Arch Otolaryngol Head Neck Surg. 2006 Jun;132(6):599-604. doi: 10.1001/archotol.132.6.599.'}, {'pmid': '15723913', 'type': 'RESULT', 'citation': 'Newman CJ, Lolekha R, Limkittikul K, Luangxay K, Chotpitayasunondh T, Chanthavanich P. A comparison of pain scales in Thai children. Arch Dis Child. 2005 Mar;90(3):269-70. doi: 10.1136/adc.2003.044404.'}]}, 'descriptionModule': {'briefSummary': 'This study was planned to compare vessel sealing system tonsillectomy (VSST) to the traditional cold knife tonsillectomy (CKT) with special regard to intraoperative bleeding, operative time, postoperative pain and hemorrhage.', 'detailedDescription': "Tonsillectomy is one of the most common procedures performed by otolaryngologists. Intraoperative bleeding is a significant problem which requires hemostasis and causes prolonged operative time. Several different techniques are used to perform this operation. Efficacy in hemostasis and tissue trauma from different operative techniques may result in different operative time and different degrees of morbidity including intraoperative blood loss, postoperative pain and hemorrhage.\n\nThe vessel sealing system has been widely used in head and neck surgery because of its effectiveness and safety. It was also found quite effective and safe in tonsillectomy procedures, providing excellent hemostasis and minimal tissue trauma. This study was planned to compare vessel sealing system tonsillectomy (VSST) to the traditional cold knife tonsillectomy (CKT) with special regard to intraoperative bleeding, operative time, postoperative pain and hemorrhage.\n\nInclusion criteria are patients planned for tonsillectomy for indications of chronic tonsillitis or obstructive sleep apnea and written informed consent form is given from patient or patient's parents (in case of pediatric patient).\n\nExclusion criteria are pregnancy, history of bleeding disorders, unilateral tonsillectomy, much different size of both tonsils (If the difference is more than or equal to 2, it will be defined as much different in size in this study), patient unable to understand evaluation method or unable to be contacted via telephone. Outcome measurements are the following.\n\n1. Operative time (minutes) will be started at the time of incision and ended at the time of complete hemostasis. After tonsillectomy on the first side is finished, 5-10 minutes is the lag time before tonsillectomy on the second side will be started in order to observe re-bleeding after operative time is recorded. If there is re-bleeding, the operative time will be changed and measured from the same starting time to the time of last complete hemostasis.\n2. Amount of blood loss (milliliter) will be measured from amount of fluid including blood and saliva in the container and gauze. Measurement will be started at the time of incision and ended at the time of complete hemostasis in the same manner of operative time.\n3. Pain score, postoperative hemorrhage or other adverse effects that the research assistant will record on post-op day 0-14 by using direct and telephone interview."}, 'eligibilityModule': {'sex': 'ALL', 'stdAges': ['CHILD', 'ADULT', 'OLDER_ADULT'], 'healthyVolunteers': False, 'eligibilityCriteria': "Inclusion Criteria:\n\n* Patient planned for tonsillectomy for indications of chronic tonsillitis or obstructive sleep apnea\n* Written informed consent form is given from patient or patient's parents (in case of pediatric patient)\n\nExclusion Criteria:\n\n* Pregnancy\n* History of bleeding disorders\n* Unilateral tonsillectomy\n* Much difference in size of both tonsils (if the difference is more than or equal to 2, it will be defined as much different in size in this study)\n* Patient unable to understand evaluation method\n* Patient unable to be contacted via telephone"}, 'identificationModule': {'nctId': 'NCT00636402', 'briefTitle': 'Study of Efficacy and Adverse Effects: Vessel Sealing System Tonsillectomy Versus Cold Knife Tonsillectomy', 'organization': {'class': 'OTHER', 'fullName': 'Chulalongkorn University'}, 'officialTitle': 'Vessel Sealing System Tonsillectomy vs Cold Knife Tonsillectomy: A Randomized, Paired Control Study of Efficacy and Adverse Effects', 'orgStudyIdInfo': {'id': 'ENTCU_pkk2008_01'}}, 'armsInterventionsModule': {'armGroups': [{'type': 'EXPERIMENTAL', 'label': '1', 'description': 'Vessel Sealing System Tonsillectomy (VSST)', 'interventionNames': ['Procedure: Vessel Sealing System Tonsillectomy']}, {'type': 'ACTIVE_COMPARATOR', 'label': '2', 'description': 'Cold Knife Tonsillectomy (CKT)', 'interventionNames': ['Procedure: Cold Knife Tonsillectomy']}], 'interventions': [{'name': 'Cold Knife Tonsillectomy', 'type': 'PROCEDURE', 'otherNames': ['CKT'], 'description': 'Cold Knife Tonsillectomy (CKT) will be done on the other side.', 'armGroupLabels': ['2']}, {'name': 'Vessel Sealing System Tonsillectomy', 'type': 'PROCEDURE', 'otherNames': ['VSST'], 'description': 'Intervention by Vessel Sealing System Tonsillectomy (VSST) will be randomized and will be performed on one side.', 'armGroupLabels': ['1']}]}, 'contactsLocationsModule': {'locations': [{'zip': '10330', 'city': 'Bangkok', 'state': 'Bangkok', 'country': 'Thailand', 'facility': 'Department of Otolaryngology, King Chulalongkorn Memorial Hospital', 'geoPoint': {'lat': 13.75398, 'lon': 100.50144}}], 'overallOfficials': [{'name': 'Prakobkiat Hirunwiwatkul, M.D.', 'role': 'PRINCIPAL_INVESTIGATOR', 'affiliation': 'Faculty of Medicine, Chulalongkorn University, Thailand'}]}, 'sponsorCollaboratorsModule': {'leadSponsor': {'name': 'Chulalongkorn University', 'class': 'OTHER'}, 'responsibleParty': {'oldNameTitle': 'Assoc. Prof. Prakobkiat Hirunwiwatkul', 'oldOrganization': 'Faculty of Medicine, Chulalongkorn University, Thailand'}}}}